Communication method, apparatus, and device, chip, storage medium, product, and program

Abstract

The present application provides a communication method, apparatus, and device, a chip, a storage medium, a product, and a program. The method comprises: receiving first configuration information, the first configuration information being used for configuring first uplink resources, and the first uplink resources comprising a first set of uplink resources; and transmitting a first uplink channel or signal by means of a target uplink resource in the first set of uplink resources, the first uplink channel or signal being used for requesting transmission of a first downlink channel or signal on a first downlink cell.

Description

Communication method, device, equipment, chip, storage medium, product and program Technical Field

[0001] The present application relates to the field of communication technology, and specifically to a communication method, apparatus, device, chip, storage medium, product and program. Background Art

[0002] In related technologies, to achieve network energy conservation, network equipment can not send downlink channels or signals on the downlink cell, and terminal devices do not receive downlink channels or signals on the downlink cell. However, in some scenarios, the terminal device needs to receive downlink channels or signals on a specific downlink cell to meet specific requirements. For example, the terminal device needs to receive downlink channels or signals on the timing reference cell to obtain timing synchronization. Based on this, how to let the network equipment know that the terminal device needs to receive downlink channels or signals on a specific downlink cell is an urgent problem that needs to be solved.

[0003] Summary of the Invention

[0004] The present application provides a communication method, apparatus, device, chip, storage medium, product and program.

[0005] In a first aspect, the present application provides a communication method, the method comprising:

[0006] receiving first configuration information, where the first configuration information is used to configure a first uplink resource, where the first uplink resource includes a first uplink resource set;

[0007] A first uplink channel or signal is sent through a target uplink resource in the first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on a first downlink cell.

[0008] In a second aspect, the present application provides a communication method, the method comprising:

[0009] Sending first configuration information, where the first configuration information is used to configure a first uplink resource, where the first uplink resource includes a first uplink resource set;

[0010] A first uplink channel or signal is detected on one or more uplink resources in the first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on a first downlink cell.

[0011] In a third aspect, the present application provides a communication device, applied to a terminal device, the device comprising:

[0012] A first receiving unit is configured to receive first configuration information, where the first configuration information is used to configure a first uplink resource, where the first uplink resource includes a first uplink resource set;

[0013] The first sending unit is configured to send a first uplink channel or signal through a target uplink resource in a first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on a first downlink cell.

[0014] In a fourth aspect, the present application provides a communication device, applied to a network device, the device comprising:

[0015] A second sending unit is configured to send first configuration information, where the first configuration information is used to configure a first uplink resource, where the first uplink resource includes a first uplink resource set;

[0016] The processing unit is configured to detect a first uplink channel or signal on one or more uplink resources in a first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on a first downlink cell.

[0017] In a fifth aspect, the present application provides a communication device comprising a processor and a memory. The memory is configured to store computer-executable instructions, and the processor is connected to the memory and configured to implement the communication method of the first or second aspect by executing the computer-executable instructions.

[0018] In a sixth aspect, the present application provides a chip for implementing the communication method of the first or second aspect above.

[0019] Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the communication method of the first aspect or the second aspect mentioned above.

[0020] In a seventh aspect, the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by at least one processor, implements the communication method of the first aspect or the second aspect mentioned above.

[0021] In an eighth aspect, the present application provides a computer program product, which includes a computer storage medium, the computer storage medium storing a computer program, and the computer program including instructions that can be executed by at least one processor, which implements the communication method of the first aspect or the second aspect mentioned above when the instructions are executed by at least one processor.

[0022] In a ninth aspect, the present application provides a computer program, which, when executed on a computer, enables the computer to execute the communication method of the first or second aspect described above.

[0023] The present application provides a communication method, in which a terminal device can receive first configuration information, the first configuration information being used to configure a first uplink resource, the first uplink resource including a first uplink resource set; and a first uplink channel or signal is sent via a target uplink resource in the first uplink resource set, the first uplink channel or signal being used to request that the first downlink channel or signal be sent on a first downlink cell. In this way, the terminal device sends the first uplink channel or signal via the target uplink resource in the first uplink resource set, enabling a network device to learn that the terminal device needs to receive the first downlink channel or signal on the first downlink cell, thereby improving network communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] FIG1A is a schematic diagram of a communication system architecture 1;

[0026] FIG1B is a second schematic diagram of the architecture of a communication system;

[0027] FIG1C is a third schematic diagram of the architecture of a communication system;

[0028] FIG2 is a flow chart of a communication method provided in an embodiment of the present application;

[0029] FIG3 is a schematic diagram of transmitting downlink channels or signals on multiple downlink cells according to an embodiment of the present application;

[0030] FIG4 is a schematic diagram of the structure of a communication device 400 provided in an embodiment of the present application;

[0031] FIG5 is a schematic diagram of the structure of a communication device 500 provided in an embodiment of the present application;

[0032] FIG6 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0033] FIG7 is a schematic structural diagram of a chip provided in an embodiment of the present application;

[0034] FIG8 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0037] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0038] It should also be pointed out that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0039] In addition, the term "and / or" in the embodiments of this application is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0040] It should be understood that the "association" mentioned in the embodiments of the present application may indicate a direct or indirect association between the two, or a corresponding relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0041] It should also be understood that the “predefined”, “protocol agreement”, “predetermined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, a terminal device), and the present application does not limit its specific implementation method. For example, predefined can refer to what is defined in the protocol. It should also be understood that in the embodiments of the present application, the “protocol” can refer to a standard protocol in the field of communications, such as the Long Term Evolution (LTE) protocol, the New Radio (NR) protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0042] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict. In the description of the present application, "multiple" means two or more, unless otherwise clearly defined.

[0043] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: LTE system, LTE time division duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine Type Communications (eMTC) system, 5G communication system (also known as NR communication system), or future communication systems (such as 6G communication system), etc.

[0044] In the embodiment of the present application, the terminal device can be a device that provides voice / data to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: access terminal, user equipment (UE), mobile phone, tablet computer, laptop computer, PDA, mobile Internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control (Industrial Control), wireless terminal in self-driving (Self Driving), wireless terminal in remote medical surgery (Remote Medical Surgery), wireless terminal in smart grid (Smart Grid), wireless terminal in transportation safety (Transportation Safety), wireless terminal in smart city (Smart City), wireless terminal in smart home (Smart Home), cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) Assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in a 5G network, or terminal devices in a future evolved public land mobile communication network (Public Land Mobile Network, PLMN), etc., the embodiments of the present application are not limited to this.

[0045] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0046] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0047] It should be noted that terminal devices and network devices (Network, NW) can communicate with each other using certain air interface technologies (such as NR or LTE technology). Terminal devices can also communicate with each other using certain air interface technologies (such as NR or LTE technology).

[0048] It should be noted that the device for implementing the function of the terminal device can be the terminal device, or it can be a device that can support the terminal device to implement the function, such as a chip system or chip, which can be installed in the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0049] In an embodiment of the present application, the network device may be an evolved base station (eNB or eNodeB) in an LTE system, or a next generation radio access network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a cloud radio access network (CRAN), or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved PLMN, etc.

[0050] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0051] Communication system scenarios may include terrestrial networks (TN) and non-terrestrial networks (NTN). NTN generally uses satellite communications to provide communication services to terrestrial users. NTN systems may include NR-NTN systems and IoT-NTN systems, and may also include other systems, which are not limited in the present application.

[0052] For example, Figure 1A is a schematic diagram of a communication system architecture. As shown in Figure 1A, communication system 100 may include network device 110 and terminal device 120. Network device 110 may be a device that communicates with terminal device 120 (or also referred to as a communication terminal device). Network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices (such as terminal device 120) located within the coverage area.

[0053] It should be noted that Figure 1A shows a network device and two terminal devices. It can be understood that in the embodiment of the present application, the communication system 100 can also include multiple network devices, and the coverage range of each network device can include other numbers of terminal devices. The embodiment of the present application does not limit this.

[0054] For example, FIG1B is a second schematic diagram of the architecture of a communication system. As shown in FIG1B , communication system 1100 may include a terminal device 1101 and a satellite 1102. Terminal device 1101 and satellite 1102 may communicate wirelessly with each other. The network formed between terminal device 1101 and satellite 1102 may also be referred to as an NTN. In the communication system architecture shown in FIG1B , satellite 1102 may function as a base station, enabling direct communication between terminal device 1101 and satellite 1102. In this system architecture, satellite 1102 may be referred to as a network device.

[0055] It should be noted that Figure 1B shows a terminal device and a satellite. It can be understood that in this embodiment of the present application, the communication system 1100 can also include multiple satellites, and the coverage area of ​​each satellite can include other numbers of terminal devices. This embodiment of the present application is not limited to this.

[0056] For example, Figure 1C is a third schematic diagram of the architecture of a communication system. As shown in Figure 1C , communication system 1200 may include terminal device 1201, satellite 1202, and base station 1203. Wireless communication can occur between terminal device 1201 and satellite 1202, and satellite 1202 can communicate with base station 1203. The network formed by terminal device 1201, satellite 1202, and base station 1203 may also be referred to as an NTN. In the communication system architecture shown in Figure 1C , satellite 1202 may not function as a base station, and communication between terminal device 1201 and base station 1203 must be relayed through satellite 1202. In this system architecture, base station 1203 may be referred to as a network device.

[0057] It should be noted that Figure 1C shows a terminal device, a satellite and a base station. It can be understood that in this embodiment of the present application, the communication system 1200 can also include multiple network devices, and the coverage range of each network device can include other numbers of terminal devices and satellites. This embodiment of the present application does not limit this.

[0058] In future evolving communication systems such as B5G or 6G, distributed multiple-input multiple-output (Distributed MIMO) (also known as distributed antenna system) scenarios and / or massive multiple-input multiple-output (Massive MIMO) (also known as massive antenna matrix system) scenarios may also be included. In some cases, Distributed MIMO and / or Massive MIMO can also support cell-free or UE-centric networking scenarios. It is understandable that the above scenarios are also applicable to TN and / or NTN.

[0059] Network energy saving is crucial for environmental sustainability, reducing environmental impact (e.g., greenhouse gas emissions), and reducing operational costs. As 5G becomes increasingly widespread across various industries and geographic regions, it will require very high data rates to handle more advanced services and applications (such as extended reality (XR)). Network deployments will become denser, utilizing more antennas, greater bandwidth, and more frequency bands. Given the environmental impact of 5G, new, controlled solutions are needed to enhance network energy saving.

[0060] Energy consumption has become a critical component of operators' operational expenditures (OPEX). The majority of energy consumption comes from the radio access network, more specifically, the active antenna unit (AAU), with data centers and fiber optic transmission contributing to a smaller share. The power consumption of a radio access can be divided into two parts: the dynamic portion, which includes power consumption when data is being transmitted or received; and the static portion, which includes power consumption required to maintain the necessary operations of the radio access equipment at all times, including when no data is being transmitted or received.

[0061] Therefore, based on the above objectives, it is necessary to research and develop network energy consumption models, key performance indicators (KPIs), and evaluation methods on the network device side to determine and study network energy-saving technologies in the target deployment scenario. Among them, the power consumption model on the terminal device side that has been defined can be used as a reference. This research should focus on how to achieve more efficient dynamic operation and / or semi-static operation, and consider one or more network energy-saving technologies applied to the time domain, frequency domain, spatial domain, and power domain, combined with potential terminal device feedback support, potential terminal device auxiliary information, and information exchange or coordination between network interfaces to achieve more fine-grained data transmission and / or reception adaptation.

[0062] It should be noted that this study not only evaluates potential network energy savings but also assesses and balances the impact on network and user performance by observing key performance indicators (KPIs) such as spectrum efficiency, capacity, user perceived throughput (UPT), latency, UE power consumption, complexity, handover performance, call drop rate, initial access performance, and service level agreement (SLA). This study should avoid significantly impacting these KPIs.

[0063] In the NR system, the initial access process of a terminal device is completed by detecting the Synchronizing Signal / PBCH Block (SSB or SS / PBCH Block) on the synchronization raster. During the initial access process, the terminal device can attempt to search for the SSB by pre-defining the possible time and frequency positions of the SSB, and obtain time and frequency synchronization, radio frame timing, and cell ID through the detected SSB.

[0064] After the terminal device accesses the network, the network device can configure multiple service cells for the terminal device according to the capabilities of the terminal device to increase the peak rate of data transmission of the terminal device. The multiple service cells of the terminal device can serve the terminal device in the form of carrier aggregation (CA) or dual connectivity (DC). Among them, the multiple service cells of the terminal device can belong to the same timing advance group (TAG) or different TAGs. For uplink cells associated with service cells belonging to the same TAG, the same timing reference cell and the same timing advance value (TA) can be used.

[0065] NR systems support analog beamforming, whereby network devices use beams in different directions at different times to cover different areas within a cell. During beam training, the terminal device measures a set of candidate beams and selects the beam that meets a certain threshold as the communication transmission beam. To improve the robustness of analog beam transmission in high-frequency bands, if the current beam transmission quality deteriorates to a certain level, the terminal device will proactively search for a new beam with better link quality and notify the network, thereby re-establishing a high-quality, reliable communication link through the new beam.

[0066] In related technologies, to achieve network energy conservation, network equipment can avoid transmitting downlink channels or signals on downlink cells, and terminal devices can avoid receiving downlink channels or signals on downlink cells. However, in some scenarios, terminal devices need to receive downlink channels or signals on a specific downlink cell to meet specific requirements. Therefore, how to inform network equipment that a terminal device needs to receive downlink channels or signals on a specific downlink cell is an urgent problem that needs to be solved.

[0067] For example, in one or more service cells included in a TAG of a terminal device, there needs to be a timing reference cell so that the terminal device can receive a reference signal (such as SSB) on the timing reference cell to update the TA value of the uplink cell associated with the TAG, thereby achieving timing synchronization. Alternatively, the terminal device needs to measure the reference signal (such as SSB) on the cell to determine a suitable beam as a beam for communication transmission. However, there is currently no solution to how to make the network device aware that the terminal device needs to receive a reference signal on the timing reference cell to achieve timing synchronization, so that it can send a reference signal on the corresponding timing reference cell.

[0068] Based on this, an embodiment of the present application provides a communication method, in which a terminal device can receive first configuration information, the first configuration information is used to configure a first uplink resource, and the first uplink resource includes a first uplink resource set; a first uplink channel or signal is sent through a target uplink resource in the first uplink resource set, and the first uplink channel or signal is used to request that the first downlink channel or signal be sent on a first downlink cell. In this way, the terminal device sends the first uplink channel or signal through the target uplink resource in the first uplink resource set, which enables the network device to know that the terminal device needs to receive the first downlink channel or signal on the first downlink cell, thereby improving network communication performance.

[0069] For example, when the first downlink cell is a timing reference cell, the network device can configure a first uplink resource for the terminal device, and the first uplink resource includes a first uplink resource set, so that the terminal device can request the network device to send an SSB (i.e., a first downlink channel or signal) on the timing reference cell through the target uplink resource in the first uplink resource set, so that subsequent terminal devices can update the TA value through the SSB sent by the network device, maintain uplink synchronization, and improve network communication performance.

[0070] Exemplarily, the network device can configure a first uplink resource for the terminal device, and the first uplink resource includes a first uplink resource set, so that the terminal device can request the network device to send an SSB (i.e., a first downlink channel or signal) on the first downlink cell through the target uplink resource in the first uplink resource set, so that subsequent terminal devices can perform measurements through the SSB sent by the network device to ensure that the selected beam direction can guarantee the robustness of the transmission and improve network communication performance.

[0071] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0072] FIG2 is a flow chart of a communication method provided in an embodiment of the present application. As shown in FIG2 , the method may include the following steps.

[0073] S210. The network device sends first configuration information to the terminal device. The first configuration information is used to configure a first uplink resource. The first uplink resource includes a first uplink resource set.

[0074] Correspondingly, the terminal device can receive the first configuration information sent by the network device.

[0075] It should be understood that the first uplink resource may be an uplink resource configured in an uplink cell.

[0076] The uplink cell may be a secondary cell; or the uplink cell may be a primary cell.

[0077] It should be noted that the first uplink resource can be one uplink resource or multiple uplink resources; the first uplink resource set included in the first uplink resource can be one uplink resource or multiple uplink resources, which is not limited in this embodiment of the present application.

[0078] It should also be noted that the first uplink resource set can be one uplink resource in the first uplink resource, or multiple uplink resources in the first uplink resource (not all uplink resources), or all uplink resources in the first uplink resource. This embodiment of the present application does not limit this.

[0079] In some embodiments, the first uplink resource may include one or more uplink resources configured periodically, and the period corresponding to the first uplink resource may be recorded as the first period. For example, the first uplink resource may include one or more uplink resources in the first period configured periodically.

[0080] In some embodiments, the first uplink resource set may include one or more uplink resources configured periodically, and the period corresponding to the first uplink resource set may be recorded as the first period. For example, the first uplink resource set may include one or more uplink resources in the first period configured periodically.

[0081] In some embodiments, any two uplink resources among the multiple uplink resources in the first uplink resource set are different in one or more dimensions of the time domain, the frequency domain, and the code domain.

[0082] S220. The terminal device sends a first uplink channel or signal to the network device through the target uplink resource in the first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on the first downlink cell.

[0083] It should be understood that the target uplink resource can be an uplink resource in the first uplink resource set, or multiple uplink resources (not all uplink resources) in the first uplink resource set, or all uplink resources in the first uplink resource set. This embodiment of the present application does not limit this.

[0084] In some embodiments, when the target uplink resource includes multiple uplink resources, the multiple uplink resources in the target uplink resource are used to repeatedly send the first uplink channel or signal.

[0085] Through this method, when the target uplink resource includes multiple uplink resources, the terminal device can use multiple uplink resources in the target uplink resource to repeatedly send the first uplink channel or signal. In this way, the probability of subsequent network devices detecting the first uplink channel or signal can be increased, thereby improving the accuracy of blind detection.

[0086] It should be noted that the type of the first uplink channel or signal may be predefined, configured by a network device, or set in other ways, and this embodiment of the present application does not limit this.

[0087] Exemplarily, the first uplink channel or signal may include one or more of the following: physical random access channel (PRACH), message A (MsgA), physical uplink control channel (PUCCH), and configured grant physical uplink shared channel (CG-PUSCH).

[0088] MsgA may include PRACH and PUSCH.

[0089] Exemplarily, MsgA may include PRACH and PUSCH in a two-step random access procedure.

[0090] It should be noted that the type of the first downlink channel or signal may be predefined, configured by a network device, or set in other ways, and this embodiment of the present application does not limit this.

[0091] Exemplarily, the first downlink channel or signal may include one or more of the following: SSB, Channel State Information-Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Positioning Reference Signal (PRS), and system message.

[0092] Exemplarily, the CSI-RS may include a CSI-RS for CSI acquisition and / or a CSI-RS for beam management (BM).

[0093] Exemplarily, the system message may include one or more of the following: System Information Block (SIB) 1, other system messages except Earthquake and Tsunami Warning System (ETWS) / Commercial Mobile Alert Service (CMAS) messages (SIB6, SIB7, SIB8), and ETWS / CMAS messages (SIB6, SIB7, SIB8).

[0094] Exemplarily, when the first downlink channel or signal includes a system message, the first downlink channel or signal includes one or more of the following: a physical downlink control channel (PDCCH) for scheduling the system message, and a physical downlink shared channel (PDSCH) carrying the system message.

[0095] In some embodiments, the first uplink resource set is associated with the first downlink cell; and / or the first uplink resource set is associated with the cell group to which the first downlink cell belongs.

[0096] Furthermore, the manner of associating the first uplink resource set with the first downlink cell may include one or more of the following two possible implementation manners.

[0097] In a possible implementation manner, the first uplink resource set is associated with the first downlink cell.

[0098] Exemplarily, the first configuration information includes an identifier of the first downlink cell; and / or the first configuration information is used to determine an association relationship between the first uplink resource set and the first downlink cell.

[0099] Through this method, when the first uplink resource set is associated with the first downlink cell, since the subsequent network equipment needs to perform blind detection processing (such as detecting the first uplink channel or signal) on the uplink cell configured with the first uplink resource set, the uplink cell configured with the first uplink resource set can be turned on, and other uplink cells with no business needs can be turned off, thereby saving power and avoiding resource waste.

[0100] In another possible implementation manner, the first uplink resource set is associated with the cell group to which the first downlink cell belongs.

[0101] Exemplarily, the first configuration information is used to determine the cell group to which the first downlink cell belongs.

[0102] For example, the first configuration information includes an identifier of the cell group to which the first downlink cell belongs; and / or, the first configuration information is used to determine the association relationship between the first uplink resource set and each downlink cell in the cell group to which the first downlink cell belongs; and / or, the first configuration information is used to determine the association relationship between the first uplink resource set and the first downlink cell in the cell group to which the first downlink cell belongs.

[0103] Through this method, when the first uplink resource set is associated with the cell group to which the first downlink cell belongs, since subsequent network equipment needs to perform blind detection processing (such as detecting the first uplink channel or signal) on the uplink cell configured with the first uplink resource set, the uplink cell configured with the first uplink resource set can be turned on, and other uplink cells with no business needs can be turned off, thereby saving power and avoiding resource waste.

[0104] Based on the above two possible implementation methods, in some embodiments, the first configuration information can be used to determine one or more of the following information: the identifier of the first downlink cell, the cell group to which the first downlink cell belongs, and the association relationship between the first uplink resource set and the first downlink cell.

[0105] Through this method, when the first configuration information is used to determine one or more of the above information, the first uplink resource set can be associated with the first downlink cell. Since the subsequent network device needs to perform blind detection processing (such as detecting the first uplink channel or signal) on the uplink cell configured with the first uplink resource set, the uplink cell configured with the first uplink resource set can be turned on, while other uplink cells with no service demand can be turned off, thereby saving power and avoiding resource waste.

[0106] In some embodiments, a Quasi Co-Location (QCL) reference of the first downlink channel or signal is determined based on a second downlink channel or signal, where the second downlink channel or signal is a downlink channel or signal on a second downlink cell.

[0107] Exemplarily, the second downlink cell is the same as the first downlink cell.

[0108] Exemplarily, the second downlink cell is different from the first downlink cell.

[0109] Exemplarily, the second downlink cell is different from the first downlink cell, and the second downlink cell and the first downlink cell belong to the same cell group.

[0110] Exemplarily, the second downlink cell and the first downlink cell belong to different cell groups.

[0111] In some embodiments, the second downlink cell is a primary cell.

[0112] Through this method, when the second downlink cell is the primary cell, the QCL reference of other downlink channels or signals (such as the first downlink channel or signal, and the third downlink channel or signal described below) can be determined based on the second downlink channel or signal on the second downlink cell.

[0113] It should be noted that the second downlink channel or signal may be a downlink channel or signal that the terminal device has received on the second downlink cell, or may be a downlink channel or signal that the terminal device is configured to receive on the second downlink cell.

[0114] It should also be noted that in the embodiment of the present application, the cell group can be a cell group configured by the network device, or it can be a TAG configured by the network device, and the embodiment of the present application does not limit this.

[0115] It should also be noted that, when the second downlink cell and the first downlink cell belong to the same cell group, the second downlink cell may be the same as the first downlink cell, or may be different from the first downlink cell, which is not limited in this embodiment of the present application.

[0116] By using this method, when the QCL reference of the first downlink channel or signal is determined based on the second downlink channel or signal, the subsequent network device can know the beam direction of the first downlink channel or signal when sending the first downlink channel or signal.

[0117] In some embodiments, the second downlink channel or signal may include a synchronization signal block SSB on the second downlink cell; or, the second downlink channel or signal may include a downlink reference signal on the second downlink cell configured by first transmission configuration indication TCI (Transmission Configuration Indication, TCI) state configuration information.

[0118] The downlink reference signal on the second downlink cell configured by the first TCI state configuration information may include an SSB or a channel state information reference signal CSI-RS.

[0119] It should be noted that the first TCI state configuration information can be configured.

[0120] Exemplarily, the first TCI state configuration information may be configured by the first configuration information (such as the first configuration information includes the first TCI state configuration information), or may be configured by other configuration information, which is not limited in the embodiment of the present application.

[0121] For example, the first configuration information may include one or more first TCI state identifiers; or the first configuration information may include one or more first TCI states.

[0122] In some embodiments, the first TCI state configuration information may be unconfigured, in which case the second downlink channel or signal may include an SSB on the second downlink cell.

[0123] That is, the first configuration information may include first TCI state configuration information; or, when the first TCI state configuration information is not configured, the second downlink channel or signal may include an SSB on the second downlink cell.

[0124] It should be noted that the SSB on the second downlink cell can be configured or determined based on the system information of the second downlink cell.

[0125] Exemplarily, the SSB on the second downlink cell may be configured by the first configuration information (such as the first configuration information is used to configure the SSB on the second downlink cell), or may be configured by other configuration information, which is not limited in the embodiments of the present application.

[0126] In some embodiments, the SSB on the second downlink cell may be unconfigured, and in this case the SSB on the second downlink cell may be determined based on a system message of the second downlink cell.

[0127] That is, the first configuration information can be used to configure the SSB on the second downlink cell; or, when the SSB on the second downlink cell is not configured, the SSB on the second downlink cell can be determined based on the system message of the second downlink cell.

[0128] It should be understood that in an embodiment of the present application, the terminal device can first determine the QCL reference of the first downlink channel or signal based on the second downlink channel or signal, and then determine the target uplink resource based on the QCL reference of the first downlink channel or signal, so that it can request the network device to send the first downlink channel or signal on the first downlink cell according to the QCL reference of the first downlink channel or signal.

[0129] It should also be understood that in the embodiments of the present application, QCL means that the large-scale parameters of the channel experienced by symbols on one antenna port can be inferred from the channel experienced by symbols on another antenna port. These large-scale parameters may include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters.

[0130] The definitions of different QCL type configurations are as follows:

[0131] 'QCL-TypeA': {Doppler Shift, Doppler Spread, Average Delay, Delay Spread};

[0132] 'QCL-TypeB': {Doppler Shift, Doppler Spread};

[0133] 'QCL-TypeC': {Doppler Shift, Average Delay};

[0134] 'QCL-TypeD': {Spatial Rx Parameter}.

[0135] In an embodiment of the present application, the QCL reference of the first downlink channel or signal may correspond to one or both of the aforementioned QCL types. The QCL type corresponding to the QCL reference of the first downlink channel or signal may be predefined, or may be configured by the first configuration information (e.g., the first configuration information is used to configure the QCL type corresponding to the QCL reference of the first downlink channel or signal), or may be configured by other configuration information, and this embodiment of the present application is not limited thereto.

[0136] Exemplarily, when the second downlink channel or signal includes an SSB on the second downlink cell, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal is predefined. For example, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal may be predefined as 'QCL-Type A' and / or 'QCL-Type D'.

[0137] Exemplarily, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal is configured by the network device. For example, the first configuration information is also used to configure the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal to be 'QCL-TypeA' and / or 'QCL-TypeD'. For another example, in the case where the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured by the first TCI state configuration information, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal is configured by the first TCI state configuration information.

[0138] In an embodiment of the present application, a TCI state may include QCL reference information. A TCI state may be associated with a TCI state ID. Each TCI state may include one or two downlink channels or signals, serving as one or two types of reference sources, respectively.

[0139] For example, a TCI state ID may be used to identify a TCI state.

[0140] It should be noted that, assuming that the TCI state may include QCL reference information 1 and QCL reference information 2. A QCL reference information may include the following information:

[0141] The QCL type configuration can be one of QCL-TypeA, QCL-TypeB, QCL-TypC, and QCL-TypeD;

[0142] The configuration of the downlink channel or signal includes the cell ID where the downlink channel or signal is located, the bandwidth part (BWP) ID, and the index associated with the downlink channel or signal (which can be a CSI-RS resource ID or SSB index).

[0143] For example, in QCL reference information 1 and QCL reference information 2, the QCL type of one QCL reference information can be one of QCL-TypeA, QCL-TypeB, and QCL-TypC, and the QCL type of the other QCL reference information (if configured) can be QCL-TypeD.

[0144] For example, the QCL type associated with the QCL reference information 1 may be one of QCL-TypeA, QCL-TypeB, and QCL-TypeC. If the QCL reference information 2 is configured, the QCL type associated with the QCL reference information 2 is QCL-TypeD.

[0145] Table 1 shows an example of a TCI state including information of a QCL reference. In Table 1, four TCI states are configured on the second downlink cell, and each TCI state may include a second downlink channel or signal.

[0146] Table 1

[0147] Table 2 shows an example of a TCI state including information of two QCL references. In Table 2, four TCI states are configured on the second downlink cell, and each TCI state includes two second downlink channels or signals.

[0148] Table 2

[0149] In some embodiments, the QCL reference of the first downstream channel or signal is determined based on one or more of the following:

[0150] a first mapping relationship between an index associated with a first downlink channel or signal and one or more uplink resources in a first uplink resource set;

[0151] a second mapping relationship between an index associated with a second downlink channel or signal and one or more uplink resources in the first uplink resource set;

[0152] a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal;

[0153] First configuration information.

[0154] It should be noted that the first mapping relationship can be predefined, or configured by the network device (such as the network device configures the first mapping relationship through the first configuration information), or set by other means, and the embodiments of the present application do not limit this.

[0155] It should also be noted that the second mapping relationship can be predefined, or it can be configured by the network device (such as the network device configures the second mapping relationship through the first configuration information), or it can be set by other means. The embodiments of this application do not limit this.

[0156] It should also be noted that the third mapping relationship can be predefined, or configured by the network device (such as the network device configures the third mapping relationship through the first configuration information), or set by other means. The embodiments of this application do not limit this.

[0157] It should be understood that the first mapping relationship between the index associated with the first downlink channel or signal and one or more uplink resources in the first uplink resource set is one-to-one, one-to-many, or many-to-one.

[0158] Exemplarily, the first downlink channel or signal includes one or more SSBs, and the first mapping relationship between the index associated with the one or more SSBs and the one or more uplink resources in the first uplink resource set is one-to-one, one-to-many, or many-to-one.

[0159] Exemplarily, the first downlink channel or signal includes a downlink reference signal on the second downlink cell configured with one or more first TCI state configuration information, and the first mapping relationship between the index associated with the one or more first TCI state configuration information and one or more uplink resources in the first uplink resource set is one-to-one, one-to-many, or many-to-one.

[0160] It should also be understood that the second mapping relationship between the index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set is one-to-one, one-to-many, or many-to-one.

[0161] It should also be understood that the third mapping relationship between the index associated with the first downlink channel or signal and the index associated with the second downlink channel or signal is one-to-one, one-to-many, or many-to-one.

[0162] Furthermore, in some embodiments, the index associated with the first downlink channel or signal is an index associated with the target uplink resource determined based on the first mapping relationship; or,

[0163] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal associated with the target uplink resource determined based on the second mapping relationship; or,

[0164] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the third mapping relationship; or,

[0165] The QCL reference of the first downlink channel or signal is configured by the first configuration information.

[0166] Based on this, in an embodiment of the present application, a method for determining the QCL reference of the first downlink channel or signal may include one or more of the following possible implementation methods.

[0167] In one possible implementation, the QCL reference of the first downlink channel or signal may be determined based on a first mapping relationship between an index associated with the first downlink channel or signal and one or more uplink resources in the first uplink resource set.

[0168] Furthermore, the index associated with the first downlink channel or signal is an index associated with the target uplink resource determined based on the first mapping relationship.

[0169] The one or more uplink resources in the first uplink resource set include target uplink resources.

[0170] Exemplarily, it is assumed that based on the first mapping relationship, the index associated with the first downlink channel or signal associated with uplink resource 1 in the first uplink resource set is 1. The terminal device selects uplink resource 1 as the target uplink resource to send the first uplink channel or signal, thereby requesting the network device to send the first downlink channel or signal with the associated index of 1 on the first downlink cell. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the associated first downlink channel or signal with the associated index of 1 on the first downlink cell.

[0171] Through this method, when the QCL reference of the first downlink channel or signal is determined based on the first mapping relationship between the index associated with the first downlink channel or signal and one or more uplink resources in the first uplink resource set, the subsequent network device can know the beam direction of the first downlink channel or signal when sending the first downlink channel or signal.

[0172] In another possible implementation, the QCL reference of the first downlink channel or signal may be determined based on a second mapping relationship between an index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set.

[0173] Furthermore, the QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal associated with the target uplink resource, which is determined based on the second mapping relationship.

[0174] That is, the first downlink channel or signal and the second downlink channel or signal associated with the target uplink resource have a QCL relationship.

[0175] The one or more uplink resources in the first uplink resource set include target uplink resources.

[0176] It should be noted that, when the second downlink channel or signal includes an SSB on the second downlink cell, the QCL reference of the first downlink channel or signal is the index associated with the SSB on the second downlink cell associated with the target uplink resource. In other words, the first downlink channel or signal has a QCL relationship with the SSB on the second downlink cell associated with the target uplink resource.

[0177] Exemplarily, assuming that the SSB on the second downlink cell includes SSB 0 and SSB 1, and the first uplink resource set includes uplink resource 0 and uplink resource 1, it can be determined based on the second mapping relationship that SSB 0 on the second downlink cell is associated with uplink resource 0, and SSB 1 is associated with uplink resource 1. The terminal device wants to request the network device to send a first downlink channel or signal on the first downlink cell to have a QCL relationship with SSB 1 on the second downlink cell, so uplink resource 1 can be selected as the target uplink resource to send the first uplink channel or signal. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the first downlink channel or signal on the first downlink cell that has a QCL relationship with SSB 1 on the second downlink cell.

[0178] It should be noted that, when the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured by the first TCI state configuration information, the QCL reference of the first downlink channel or signal is the index associated with the first TCI state configuration information associated with the target uplink resource, determined based on the second mapping relationship. In other words, the first downlink channel or signal has a QCL relationship with the first TCI state configuration information associated with the target uplink resource.

[0179] Exemplarily, assuming that the first TCI state configuration information includes TCI state 0 and TCI state 1, and the first uplink resource set includes uplink resource 0 and uplink resource 1, it can be determined based on the second mapping relationship that TCI state 0 configured by the first TCI state configuration information is associated with uplink resource 0, and TCI state 1 is associated with uplink resource 1. The first downlink channel or signal that the terminal device wants to request the network device to send on the first downlink cell has a QCL relationship with TCI state 1 configured by the first TCI state configuration information, so uplink resource 1 can be selected as the target uplink resource to send the first uplink channel or signal. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the first downlink channel or signal that has a QCL relationship with TCI state 1 on the first downlink cell.

[0180] Through this method, when the QCL reference of the first downlink channel or signal is determined based on the second mapping relationship between the index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set, the subsequent network device can know the beam direction of the first downlink channel or signal when sending the first downlink channel or signal.

[0181] In another possible implementation, the QCL reference of the first downlink channel or signal may be determined based on a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal.

[0182] Furthermore, the QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the third mapping relationship.

[0183] That is, the first downlink channel or signal has a QCL relationship with the second downlink channel or signal determined based on the third mapping relationship.

[0184] It should be noted that, when the second downlink channel or signal includes an SSB on the second downlink cell, the QCL reference of the first downlink channel or signal is an index associated with the SSB on the second downlink cell determined based on the third mapping relationship. In other words, the first downlink channel or signal has a QCL relationship with the SSB on the second downlink cell determined based on the third mapping relationship.

[0185] Exemplarily, assuming that the SSB on the second downlink cell includes SSB 0 and SSB 1, and assuming that the index associated with the SSB on the second downlink cell determined based on the third mapping relationship, the obtained SSB on the second downlink cell is SSB 1. The terminal device can send a first uplink channel or signal, thereby requesting the network device to send the first downlink channel or signal on the first downlink cell to have a QCL relationship with SSB 1 on the second downlink cell. Accordingly, if the network device receives the first uplink channel or signal, the network device can send the first downlink channel or signal on the first downlink cell that has a QCL relationship with SSB 1 on the second downlink cell.

[0186] It should be noted that, when the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured by the first TCI state configuration information, the QCL reference of the first downlink channel or signal is an index associated with the first TCI state configuration information determined based on the third mapping relationship. In other words, the first downlink channel or signal has a QCL relationship with the first TCI state configuration information determined based on the third mapping relationship.

[0187] Exemplarily, assuming that the first TCI state configuration information includes TCI state 0 and TCI state 1, and assuming that the index associated with the first TCI state configuration information determined based on the third mapping relationship, the obtained first TCI state configuration information is TCI state 1. The terminal device can send a first uplink channel or signal, thereby requesting the network device to send a first downlink channel or signal on the first downlink cell to have a QCL relationship with TCI state 1. Correspondingly, if the network device receives the first uplink channel or signal, the network device can send a first downlink channel or signal on the first downlink cell to have a QCL relationship with TCI state 1.

[0188] Through this method, when the QCL reference of the first downlink channel or signal is determined based on the third mapping relationship between the index associated with the first downlink channel or signal and the index associated with the second downlink channel or signal, the subsequent network device can know the beam direction of the first downlink channel or signal when sending the first downlink channel or signal.

[0189] In another possible implementation, the QCL reference of the first downlink channel or signal may be determined based on the first configuration information.

[0190] It should be noted that the first configuration information can indirectly determine the QCL reference of the first downlink channel or signal.

[0191] Exemplarily, the first configuration information may configure one or more of the following: a first mapping relationship between an index associated with a first downlink channel or signal and one or more uplink resources in a first uplink resource set; a second mapping relationship between an index associated with a second downlink channel or signal and one or more uplink resources in the first uplink resource set; and a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal. Thus, the QCL reference of the first downlink channel or signal may be determined based on one or more of the first mapping relationship, the second mapping relationship, and the third mapping relationship.

[0192] Exemplarily, the first configuration information may configure the first uplink resource set to be associated with the first downlink cell. Thus, when the network device receives the first uplink channel or signal through one or more uplink resources in the first uplink resource set, the network device sends the first downlink channel or signal on the first downlink cell. The QCL reference of the first downlink channel or signal is all candidate QCL references. For example, if the QCL reference of the first downlink channel or signal includes an SSB set on the second downlink cell, and the SSB set includes SSB0, SSB1, SSB2, and SSB3, the network device sends the first downlink channel or signal on the first downlink cell that has a QCL relationship with SSB0, SSB1, SSB2, and SSB3 on the second downlink cell, respectively.

[0193] It should be noted that the first configuration information can directly determine the QCL reference of the first downlink channel or signal.

[0194] Exemplarily, the QCL reference of the first downlink channel or signal is configured by the first configuration information. For example, the first configuration information configures the QCL reference of the first downlink channel or signal to be SSB 1 on the second downlink cell; when the network device receives the first uplink channel or signal through one or more uplink resources in the first uplink resource set, the network device sends the first downlink channel or signal having a QCL relationship with SSB 1 on the second downlink cell on the first downlink cell. For another example, the first configuration information configures the QCL reference of the first downlink channel or signal to be the TCI state configured by the first TCI state configuration information; when the network device receives the first uplink channel or signal through one or more uplink resources in the first uplink resource set, the network device sends the first downlink channel or signal on the first downlink cell according to the TCI state configured by the first TCI state configuration information.

[0195] Exemplarily, the first configuration information configures the QCL reference of the first downlink channel or signal to be the SSB on the second downlink cell. When the network device receives the first uplink channel or signal through one or more uplink resources in the first uplink resource set, the network device transmits the first downlink channel or signal on the first downlink cell that has a QCL relationship with the SSB in the SSB set on the second downlink cell. The SSB set on the second downlink cell is configured by the network device or determined based on a system message of the second downlink cell.

[0196] Through this method, when the QCL reference of the first downlink channel or signal is determined based on the first configuration information, the subsequent network device can know the beam direction of the first downlink channel or signal when sending the first downlink channel or signal.

[0197] In some embodiments, when the first downlink cell and the second downlink cell are the same cell, the first configuration information may not be required to configure the QCL reference of the first downlink channel or signal. For example, at this time, the QCL reference of the first downlink channel or signal can be preset to the SSB on the first downlink cell. When the network device receives the first uplink channel or signal through one or more uplink resources in the first uplink resource set, the network device sends the first downlink channel or signal on the first downlink cell that has a QCL relationship with the SSB in the SSB set on the first downlink cell. The SSB set on the first downlink cell can be determined based on the system message of the first downlink cell.

[0198] In some embodiments, when a mapping relationship (such as the first mapping relationship or the third mapping relationship) is determined, the indexes associated with the first downlink channels or signals are sorted from small to large.

[0199] Further, taking the first mapping relationship as an example, the first mapping relationship is: the first mapping relationship between the index associated with the first downlink channel or signal and one or more uplink resources in the first uplink resource set; within an association period, the index associated with the first downlink channel or signal is sorted from small to large according to the index.

[0200] One association period includes an integer number of first periods, and the first period is a period of the first uplink resource set.

[0201] It should be noted that the length of an association period may be predefined, configured by a network device, or set in other ways, and this embodiment of the present application does not limit this.

[0202] It should also be noted that within an association period, the index associated with the first downlink channel or signal is sequentially mapped with one or more uplink resources in the first uplink resource set in ascending order of index.

[0203] Exemplarily, the first downlink channel or signal may include one or more SSBs. Within an association period, starting from system frame number (SFN) 0, the indexes associated with the one or more SSBs are mapped sequentially with one or more uplink resources in the first uplink resource set in order from small to large.

[0204] Further, the one or more SSB associated indices are mapped to valid uplink resources in the first uplink resource set; or, the one or more SSB associated indices are mapped to uplink resources configured in the first uplink resource set.

[0205] By using this method, when the indexes associated with the first downlink channels or signals are sorted from small to large, the index associated with the first downlink channel or signal associated with the target uplink resource can be quickly obtained.

[0206] In some embodiments, when determining a mapping relationship (such as the second mapping relationship or the third mapping relationship), the indexes associated with the second downlink channels or signals are sorted from small to large.

[0207] Furthermore, taking the second mapping relationship as an example, the second mapping relationship is: the mapping relationship between the index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set within an association period; within an association period, the index associated with the second downlink channel or signal is sorted from small to large according to the index.

[0208] It should be noted that, within an association period, the index associated with the second downlink channel or signal is sequentially mapped with one or more uplink resources in the first uplink resource set in ascending order of index.

[0209] Exemplarily, the second downlink channel or signal may include one or more SSBs. Within an association period, starting from SFN 0, the indexes associated with the one or more SSBs are mapped sequentially with one or more uplink resources in the first uplink resource set in order from small to large.

[0210] Further, the one or more SSB associated indices are mapped to valid uplink resources in the first uplink resource set; or, the one or more SSB associated indices are mapped to uplink resources configured in the first uplink resource set.

[0211] Exemplarily, the second downlink channel or signal may include a downlink reference signal on the second downlink cell configured with one or more first TCI state configuration information. Within an association period, starting from SFN 0, the indexes associated with the one or more first TCI state configuration information are mapped sequentially with one or more uplink resources in the first uplink resource set in order from small to large.

[0212] Further, the index associated with the one or more first TCI state configuration information is mapped to the valid uplink resources in the first uplink resource set; or, the index associated with the one or more first TCI state configuration information is mapped to the uplink resources configured in the first uplink resource set.

[0213] By using this method, when the indexes associated with the second downlink channels or signals are sorted from small to large, the indexes associated with the second downlink channels or signals associated with the target uplink resource can be quickly obtained.

[0214] In some embodiments, when a mapping relationship (such as the first mapping relationship or the second mapping relationship) is determined, the order of the one or more uplink resources in the first uplink resource set includes one or more of the following:

[0215] Sort the code domain by index from small to large;

[0216] Sort by index in ascending order in the frequency domain;

[0217] Sort by index in ascending order in the time domain; and,

[0218] Sort by the index of the first cycle from small to large.

[0219] Exemplarily, the ordering of one or more uplink resources in the first uplink resource set is: if there are multiple code domain resources in one uplink transmission opportunity, they are sorted from small to large according to the index in the code domain; if there are multiple uplink transmission opportunities in the frequency domain at the same time domain position, they are sorted from small to large according to the index in the frequency domain; if there are multiple uplink transmission opportunities in the time domain within a first period, they are sorted from small to large according to the index in the time domain; if there are multiple first periods within an associated period, they are sorted from small to large according to the index of the first period.

[0220] For example, assuming that the first uplink resource set includes one or more PRACH resources, the one or more PRACH resources are sorted as follows: sorted from small to large according to the PRACH sequence index on a RO (PRACH transmission opportunity); if there are multiple ROs in the frequency domain at the same time domain position, they are sorted from small to large according to the index in the frequency domain; if there are multiple ROs in the time domain within the PRACH resource configuration period (i.e., the first period), they are sorted from small to large according to the index in the time domain; if there are multiple PRACH resource configuration periods within an associated period, they are sorted from small to large according to the index of the PRACH resource configuration period.

[0221] For another example, the first uplink resource set includes one or more PUCCH resources, and the one or more PUCCH resources are sorted as follows: sorted from small to large according to the PUCCH sequence index in a PUCCH transmission opportunity; if there are multiple PUCCH transmission opportunities in the frequency domain at the same time domain position, then sorted from small to large according to the index in the frequency domain; if there are multiple PUCCH transmission opportunities in the time domain within the PUCCH resource configuration period (i.e., the first period), then sorted from small to large according to the index in the time domain; if there are multiple PUCCH resource configuration periods within an associated period, then sorted from small to large according to the index of the PUCCH resource configuration period.

[0222] For another example, the first uplink resource set includes one or more PUSCH resources, and the one or more PUSCH resources are sorted as follows: sorted from small to large according to the demodulation reference signal (DMRS) resource index on a PUSCH transmission opportunity, where, when sorting from small to large according to the DMRS resource index, when the DMRS sequence index is the same, sorted from small to large according to the DMRS antenna port number; sorted from small to large according to the DMRS sequence index; sorted from small to large according to the index in the time domain within the PUSCH resource configuration period (i.e., the first period); if there are multiple PUSCH resource configuration periods within an associated period, sorted from small to large according to the index of the PUSCH resource configuration period.

[0223] Through this method, when one or more uplink resources in the first uplink resource set are sorted, the target uplink resource associated with the index associated with the downlink channel or signal (such as the first downlink channel or signal, or the second downlink channel or signal) can be quickly obtained.

[0224] In some embodiments, when the second downlink cell is different from the first downlink cell, the first configuration information is used to determine one or more of the following information: the identifier of the second downlink cell, the cell group to which the second downlink cell belongs, and the association relationship between the first downlink cell and the second downlink cell.

[0225] Through this method, the terminal device can obtain one or more of the identifier of the second downlink cell, the cell group to which the second downlink cell belongs, and the association relationship between the first downlink cell and the second downlink cell, so that the terminal device can determine the cell identifier of the second downlink cell, and then determine the QCL reference of the first downlink channel or signal based on the second downlink channel or signal on the second downlink cell.

[0226] S230: The network device detects a first uplink channel or signal on one or more uplink resources in the first uplink resource set.

[0227] In some embodiments, when the network device detects a first uplink channel or signal on a target uplink resource in the first uplink resource set, the network device may send the first downlink channel or signal on the first downlink cell.

[0228] Through this method, when the first downlink cell is a timing reference cell, after the network device sends the SSB (i.e., the first downlink channel or signal) on the timing reference cell, the subsequent terminal devices can update the TA value through the SSB, maintain uplink synchronization, and improve network communication performance; or, after the network device sends the SSB (i.e., the first downlink channel or signal) on the first downlink cell, the subsequent terminal devices can perform measurements through the SSB to ensure that the selected beam direction can guarantee the robustness of the transmission and improve network communication performance.

[0229] In some embodiments, the first configuration information is also used to configure a second uplink resource, and the second uplink resource may include a second uplink resource set; the method may also include: the terminal device sends a second uplink channel or signal through one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell.

[0230] In other embodiments, the first uplink resource may also include a second uplink resource set; the method may also include: the terminal device sends a second uplink channel or signal through one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell.

[0231] Accordingly, the network device may detect the second uplink channel or signal on one or more uplink resources in the second uplink resource set.

[0232] Exemplarily, the third downlink cell is different from the first downlink cell.

[0233] It should be noted that the third downlink cell and the first downlink cell belong to the same cell group, or the third downlink cell and the first downlink cell belong to different cell groups.

[0234] It should be understood that the method by which the terminal device requests the network device to send the third downlink channel or signal on the third downlink cell is similar to the method by which the terminal device requests the network device to send the first downlink channel or signal on the first downlink cell, and will not be repeated here.

[0235] It should also be understood that the method for determining the type of the third downlink channel or signal is similar to the method for determining the type of the first downlink channel or signal, and will not be described in detail here.

[0236] It should also be understood that the method for determining the type of the second uplink channel or signal is similar to the method for determining the type of the first uplink channel or signal, and will not be described in detail here.

[0237] Through this method, when the terminal device sends a second uplink channel or signal through one or more uplink resources in the second uplink resource set, since the subsequent network device needs to perform blind detection processing (such as detecting the second uplink channel or signal) on the uplink cell configured with the second uplink resource set, the uplink cell configured with the second uplink resource set can be turned on, and other uplink cells with no business needs can be turned off, thereby saving power and avoiding resource waste.

[0238] In some embodiments, the method may further include: when the network device detects a second uplink channel or signal on one or more uplink resources in the second uplink resource set, sending a third downlink channel or signal on a third downlink cell.

[0239] Through this method, when the third downlink cell is a timing reference cell, after the network device sends an SSB (i.e., a third downlink channel or signal) on the timing reference cell, it can enable subsequent terminal devices to update the TA value through the SSB, maintain uplink synchronization, and improve network communication performance. Alternatively, after the network device sends an SSB (i.e., a third downlink channel or signal) on the third downlink cell, it can enable subsequent terminal devices to perform measurements through the SSB sent by the network device to ensure that the selected beam direction can guarantee the robustness of the transmission and improve network communication performance.

[0240] In some embodiments, the second uplink resource set is associated with the third downlink cell; and / or, the second uplink resource set is associated with the cell group to which the third downlink cell belongs.

[0241] Furthermore, the association manner of the second uplink resource set and the third downlink cell may include one or more of the following two possible implementation manners.

[0242] In a possible implementation manner, the second uplink resource set is associated with a third downlink cell.

[0243] Exemplarily, the first configuration information may include an identifier of the third downlink cell; and / or, the first configuration information may be used to determine an association relationship between the second uplink resource set and the third downlink cell.

[0244] Through this method, when the second uplink resource set is associated with the third downlink cell, since the subsequent network equipment needs to perform blind detection processing (such as detecting the second uplink channel or signal) on the uplink cell configured with the second uplink resource set, the uplink cell configured with the second uplink resource set can be turned on, and other uplink cells with no business needs can be turned off, thereby saving power and avoiding resource waste.

[0245] In another possible implementation manner, the second uplink resource set is associated with the cell group to which the third downlink cell belongs.

[0246] Exemplarily, the first configuration information may be used to determine the cell group to which the third downlink cell belongs.

[0247] For example, the first configuration information may include an identifier of the cell group to which the third downlink cell belongs; and / or, the first configuration information may be used to determine the association relationship between the second uplink resource set and each downlink cell in the cell group to which the third downlink cell belongs; and / or, the first configuration information may be used to determine the association relationship between the second uplink resource set and the third downlink cell in the cell group to which the third downlink cell belongs.

[0248] Through this method, when the second uplink resource set is associated with the cell group to which the third downlink cell belongs, since the subsequent network equipment needs to perform blind detection processing (such as detecting the second uplink channel or signal) on the uplink cell configured with the second uplink resource set, the uplink cell configured with the second uplink resource set can be turned on, and other uplink cells with no business needs can be turned off, thereby saving power and avoiding resource waste.

[0249] Based on the above two possible implementation methods, in some embodiments, the first configuration information can be used to determine one or more of the following information: the identifier of the third downlink cell, the cell group to which the third downlink cell belongs, and the association relationship between the second uplink resource set and the third downlink cell.

[0250] Through this method, when the first configuration information is used to determine one or more of the above information, the second uplink resource set can be associated with the third downlink cell. Since the subsequent network equipment needs to perform blind detection processing (such as detecting the second uplink channel or signal) on the uplink cell configured with the second uplink resource set, the uplink cell configured with the second uplink resource set can be turned on, while other uplink cells without service requirements can be turned off, thereby saving power and avoiding resource waste.

[0251] In some embodiments, the QCL reference of the third downlink channel or signal may be determined based on the second downlink channel or signal; or,

[0252] The QCL reference of the third downlink channel or signal may be determined based on a fourth downlink channel or signal on the third downlink cell.

[0253] That is, in some cases, the QCL reference of the first downlink channel or signal and the QCL reference of the third downlink channel or signal are both determined based on the second downlink channel or signal. In other cases, the QCL reference of the first downlink channel or signal is determined based on the second downlink channel or signal, and the QCL reference of the third downlink channel or signal is determined based on the fourth downlink channel or signal.

[0254] Exemplarily, the third downlink cell is different from the second downlink cell.

[0255] Exemplarily, the third downlink cell is different from the second downlink cell, and the third downlink cell and the second downlink cell belong to the same cell group.

[0256] Exemplarily, the third downlink cell and the second downlink cell belong to different cell groups.

[0257] Through this method, when the QCL reference of the third downlink channel or signal is determined based on the second downlink channel or signal, or the QCL reference of the third downlink channel or signal is determined based on the fourth downlink channel or signal on the third downlink cell, the subsequent network device can know the beam direction of the third downlink channel or signal when sending the third downlink channel or signal.

[0258] In some embodiments, the fourth downlink channel or signal may include an SSB on the third downlink cell; or, the fourth downlink channel or signal may include a downlink reference signal on the third downlink cell configured by the second TCI state configuration information.

[0259] Further, the first configuration information may include second TCI state configuration information; or, when the second TCI state configuration information is not configured, the fourth downlink channel or signal may include an SSB on the third downlink cell.

[0260] Further, the first configuration information can be used to configure the SSB on the third downlink cell; or, when the SSB on the third downlink cell is not configured, the SSB on the third downlink cell can be determined based on the system message of the third downlink cell.

[0261] It should be understood that the method for determining the QCL reference of the third downlink channel or signal is similar to the method for determining the QCL reference of the first downlink channel or signal, and is not described again here.

[0262] Exemplarily, as shown in FIG3 , the first configuration information can be used to configure the first uplink resource on the uplink activation BWP of the first downlink cell. Assuming that the first uplink resource is an RO resource, the first configuration information can be configured to include 6 RO resources within the first period (i.e., one RO resource period), and the first configuration information can configure the available PRACH sequence set on each RO resource. The first configuration information can also configure the RO resource to request the network device to send SSB on the first downlink cell and to send SSB on the third downlink cell. For example, the first configuration information can configure the identifier of the first downlink cell, the SSB set on the first downlink cell to be SSB0 to SSB3, the identifier of the third downlink cell, the SSB set on the third downlink cell to be SSB0 to SSB7, and an associated period including 2 first periods. Among them, the index associated with the first downlink cell is less than the index associated with the third downlink cell.

[0263] Based on the above-mentioned first configuration information, the terminal device can determine that within an association period, the first four RO resources are associated with SSB0 to SSB3 on the first downlink cell, and the last eight RO resources are associated with SSB0 to SSB7 on the third downlink cell. If the terminal device can obtain a TA value or perform a measurement through SSB2 on the third downlink cell, but the third downlink cell has not sent the SSB2 for a period of time, the terminal device can send a PRACH sequence in the configured PRACH sequence set through the RO resource associated with SSB2 (i.e., the first RO resource in the second RO resource period within an association period). After the network device detects the PRACH sequence in the PRACH sequence set through the RO resource associated with SSB2, it can send SSB2 through the third downlink cell.

[0264] An embodiment of the present application provides a communication method, in which a terminal device can receive first configuration information, the first configuration information being used to configure a first uplink resource, the first uplink resource including a first uplink resource set; and a first uplink channel or signal is sent via a target uplink resource in the first uplink resource set, the first uplink channel or signal being used to request that the first downlink channel or signal be sent on a first downlink cell. In this way, the terminal device sends the first uplink channel or signal via the target uplink resource in the first uplink resource set, enabling a network device to learn that the terminal device needs to receive the first downlink channel or signal on the first downlink cell, thereby improving network communication performance.

[0265] For example, when the first downlink cell is a timing reference cell, the network device can configure a first uplink resource for the terminal device, and the first uplink resource includes a first uplink resource set, so that the terminal device can request the network device to send an SSB (i.e., a first downlink channel or signal) on the timing reference cell through the target uplink resource in the first uplink resource set, so that subsequent terminal devices can update the TA value through the SSB sent by the network device, maintain uplink synchronization, and improve network communication performance.

[0266] Exemplarily, the network device can configure a first uplink resource for the terminal device, and the first uplink resource includes a first uplink resource set, so that the terminal device can request the network device to send an SSB (i.e., a first downlink channel or signal) on the first downlink cell through the target uplink resource in the first uplink resource set, so that subsequent terminal devices can perform measurements through the SSB sent by the network device to ensure that the selected beam direction can guarantee the robustness of the transmission and improve network communication performance.

[0267] The following is an example of the communication method provided in the embodiment of the present application in combination with specific application scenarios.

[0268] In an embodiment of the present application, in order to enable the network device to be aware of the terminal device's need to receive SSB or other reference signals (such as CSI-RS, PRS, and TRS) on the secondary cell, the network device can configure one or more uplink resources for the terminal device so that the terminal device can request the network device to send SSB or other reference signals on the secondary cell through the one or more uplink resources.

[0269] The network device can send first configuration information, which is used to configure a first uplink resource. The first uplink resource includes a first uplink resource set. The target uplink resource in the first uplink resource set is used to send a first uplink channel or signal. The first uplink channel or signal is used to request the network device to send a first downlink channel or signal on a first downlink cell.

[0270] Accordingly, the terminal device can receive first configuration information, which is used to configure a first uplink resource, and the first uplink resource includes a first uplink resource set. The target uplink resource in the first uplink resource set is used to send a first uplink channel or signal, and the first uplink channel or signal is used to request the network device to send a first downlink channel or signal on a first downlink cell.

[0271] The terminal device can send a first uplink channel or signal to the network device through the target uplink resource in the first uplink resource set.

[0272] After the network device detects the first uplink channel or signal on the target uplink resource in the first uplink resource set, the network device sends the first downlink channel or signal on the first downlink cell.

[0273] In some embodiments, the type of the first uplink channel or signal may include one or more of the following: PRACH, MsgA, PUCCH, CG-PUSCH.

[0274] Furthermore, the type of the first uplink channel or signal may be predefined or configured by the network device.

[0275] MsgA may include PRACH and PUSCH.

[0276] Exemplarily, MsgA may include PRACH and PUSCH in a two-step random access procedure.

[0277] In some embodiments, the type of the first downlink channel or signal may include one or more of the following: SSB, CSI-RS, TRS, PRS, and system message.

[0278] The CSI-RS may include one or more of the following: a CSI-RS used for CSI acquisition and a CSI-RS used for BM.

[0279] The system message may include one or more of the following: SIB1, other system messages except ETWS / CMAS messages (SIB6, SIB7, SIB8), and ETWS / CMAS messages (SIB6, SIB7, SIB8).

[0280] In some embodiments, when the first downlink channel or signal includes a system message, the first downlink channel or signal includes one or more of the following: a PDCCH for scheduling the system message, and a PDSCH carrying the system message.

[0281] Furthermore, the type of the first downlink channel or signal may be predefined or configured by the network device.

[0282] In some embodiments, the first uplink resource set is associated with the first downlink cell. For example, the first configuration information includes an identifier of the first downlink cell, and / or the first configuration information is used to determine the association relationship between the first uplink resource set and the first downlink cell.

[0283] In some embodiments, the first uplink resource set is associated with the cell group to which the first downlink cell belongs. For example, the first configuration information includes an identifier of the cell group to which the first downlink cell belongs; and / or the first configuration information is used to determine an association relationship between the first uplink resource set and each downlink cell in the cell group to which the first downlink cell belongs; and / or the first configuration information is used to determine an association relationship between the first uplink resource set and the first downlink cell in the cell group to which the first downlink cell belongs.

[0284] It should be noted that the first uplink resource set may include one or more uplink resources configured in a periodic manner, and the period corresponding to the first uplink resource set may be recorded as a first period. When the first uplink resource set includes multiple uplink resources, any two uplink resources in the multiple uplink resources differ in one or more dimensions of the time domain, the frequency domain, and the code domain.

[0285] In some embodiments, the QCL reference of the first downlink channel or signal is all candidate QCL references on the first downlink cell. For example, the first uplink channel or signal sent by the terminal device to the network device via the target uplink resource in the first uplink resource set is used to request the first downlink channel or signal associated with all candidate QCL references.

[0286] In some embodiments, the QCL reference of the first downlink channel or signal may be determined based on a second downlink channel or signal, where the second downlink channel or signal is a downlink channel or signal on a second downlink cell.

[0287] Exemplarily, the second downlink cell is the same as the first downlink cell.

[0288] Exemplarily, the second downlink cell is different from the first downlink cell.

[0289] Exemplarily, the second downlink cell is different from the first downlink cell, and the second downlink cell and the first downlink cell belong to the same cell group.

[0290] Exemplarily, the second downlink cell and the first downlink cell belong to different cell groups.

[0291] In some embodiments, the QCL reference of the first downlink channel or signal may be determined based on one or more of the following:

[0292] a first mapping relationship between an index associated with a first downlink channel or signal and one or more uplink resources in a first uplink resource set;

[0293] a second mapping relationship between an index associated with a second downlink channel or signal and one or more uplink resources in the first uplink resource set;

[0294] a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal;

[0295] First configuration information.

[0296] Further, the index associated with the first downlink channel or signal is an index associated with the target uplink resource determined based on the first mapping relationship; or,

[0297] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal associated with the target uplink resource determined based on the second mapping relationship; or,

[0298] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the third mapping relationship; or,

[0299] The QCL reference of the first downlink channel or signal is configured by the first configuration information.

[0300] It should be noted that the first downlink channel or signal has a QCL relationship with the second downlink channel or signal determined based on the third mapping relationship.

[0301] Exemplarily, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal is predefined. For example, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal may be predefined as 'QCL-Type A' and / or 'QCL-Type D'.

[0302] Exemplarily, the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal is configured by the network device. For example, the first configuration information is further used to configure the QCL type corresponding to the QCL relationship between the first downlink channel or signal and the second downlink channel or signal to be 'QCL-TypeA' and / or 'QCL-TypeD'.

[0303] The following describes the technical solutions provided in the embodiments of the present application in detail from three aspects.

[0304] (1) The QCL reference of the first downlink channel or signal is the index associated with the second downlink channel or signal associated with the target uplink resource determined based on the second mapping relationship

[0305] In some embodiments, taking the QCL reference of the first downlink channel or signal as the index associated with the second downlink channel or signal associated with the target uplink resource determined based on the second mapping relationship as an example, the method for determining the QCL reference of the first downlink channel or signal is described in detail through the following four examples.

[0306] Example 1: When the second downlink cell is the same as the first downlink cell and the second downlink channel or signal includes the SSB on the first downlink cell, the QCL reference of the first downlink channel or signal is: the index associated with the SSB on the first downlink cell associated with the target uplink resource determined based on the second mapping relationship.

[0307] That is to say, the terminal device can determine the QCL reference of the first downlink channel or signal based on the index of the SSB association on the first downlink cell associated with the target uplink resource determined by the second mapping relationship.

[0308] Exemplarily, assuming that the SSB on the first downlink cell includes SSB 0 and SSB 1, and the first uplink resource set includes uplink resource 0 and uplink resource 1, it can be determined based on the second mapping relationship that SSB 0 on the first downlink cell is associated with uplink resource 0, and SSB 1 is associated with uplink resource 1. The terminal device wants to request the network device to send a first downlink channel or signal on the first downlink cell to have a QCL relationship with SSB 1 on the first downlink cell, so uplink resource 1 can be selected as the target uplink resource to send the first uplink channel or signal. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the first downlink channel or signal on the first downlink cell that has a QCL relationship with SSB 1 on the first downlink cell.

[0309] In some embodiments, the first configuration information is also used to configure the SSB on the first downlink cell.

[0310] In other embodiments, when the SSB on the first downlink cell is not configured, the terminal device can determine the SSB on the first downlink cell based on the system message of the first downlink cell.

[0311] Example 2: When the second downlink cell is different from the first downlink cell and the second downlink channel or signal includes the SSB on the second downlink cell, the QCL reference of the first downlink channel or signal is: the index associated with the SSB on the second downlink cell associated with the target uplink resource determined based on the second mapping relationship.

[0312] That is to say, the terminal device can determine the QCL reference of the first downlink channel or signal based on the index of the SSB association on the second downlink cell associated with the target uplink resource determined by the second mapping relationship.

[0313] Exemplarily, assuming that the SSB on the second downlink cell includes SSB 0 and SSB 1, and the first uplink resource set includes uplink resource 0 and uplink resource 1, it can be determined based on the second mapping relationship that SSB 0 on the second downlink cell is associated with uplink resource 0, and SSB 1 is associated with uplink resource 1. The terminal device wants to request the network device to send a first downlink channel or signal on the first downlink cell to have a QCL relationship with SSB 1 on the second downlink cell, so uplink resource 1 can be selected as the target uplink resource to send the first uplink channel or signal. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the first downlink channel or signal on the first downlink cell that has a QCL relationship with SSB 1 on the second downlink cell.

[0314] In some embodiments, the first downlink cell and the second downlink cell belong to the same TAG.

[0315] In some embodiments, the first downlink cell is a secondary cell of the terminal device, and the second downlink cell is a primary cell of the terminal device.

[0316] In some embodiments, the first configuration information is also used to configure the SSB on the second downlink cell.

[0317] In other embodiments, when the SSB on the second downlink cell is not configured, the terminal device can determine the SSB on the second downlink cell based on the system message of the second downlink cell.

[0318] In some embodiments, the first configuration information includes an identifier of the second downlink cell; or, the first configuration information is used to determine an association relationship between the first downlink cell and the second downlink cell.

[0319] Example three: When the second downlink cell is the same as the first downlink cell, and the second downlink channel or signal includes the downlink reference signal on the first downlink cell configured with the first TCI state configuration information, the QCL reference of the first downlink channel or signal is: the index associated with the first TCI state configuration information associated with the target uplink resource determined based on the second mapping relationship.

[0320] That is to say, the terminal device can determine the QCL reference of the first downlink channel or signal based on the index associated with the first TCI state configuration information associated with the target uplink resource determined by the second mapping relationship.

[0321] Exemplarily, the second downlink channel or signal is SSB or CSI-RS.

[0322] Exemplarily, assuming that the first TCI state configuration information includes TCI state 0 and TCI state 1, and the first uplink resource set includes uplink resource 0 and uplink resource 1, it can be determined based on the second mapping relationship that TCI state 0 configured by the first TCI state configuration information is associated with uplink resource 0, and TCI state 1 is associated with uplink resource 1. The first downlink channel or signal that the terminal device wants to request the network device to send on the first downlink cell has a QCL relationship with TCI state 1 configured by the first TCI state configuration information, so uplink resource 1 can be selected as the target uplink resource to send the first uplink channel or signal. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the first downlink channel or signal that has a QCL relationship with TCI state 1 on the first downlink cell.

[0323] In some embodiments, the first configuration information may include first TCI state configuration information. For example, the first configuration information may include one or more first TCI state identifiers; or the first configuration information may include one or more first TCI states.

[0324] In other embodiments, when the first TCI state configuration information is not configured, the terminal device can determine that the second downlink channel or signal is the SSB on the first downlink cell.

[0325] Example 4: When the second downlink cell is different from the first downlink cell and the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured with the first TCI state configuration information, the QCL reference of the first downlink channel or signal is: an index associated with the first TCI state configuration information associated with the target uplink resource determined based on the second mapping relationship.

[0326] That is to say, the terminal device can determine the QCL reference of the first downlink channel or signal based on the index associated with the first TCI state configuration information associated with the target uplink resource determined by the second mapping relationship.

[0327] Exemplarily, the second downlink channel or signal is SSB or CSI-RS.

[0328] Exemplarily, assuming that the first TCI state configuration information includes TCI state 0 and TCI state 1, and the first uplink resource set includes uplink resource 0 and uplink resource 1, it can be determined based on the second mapping relationship that TCI state 0 configured by the first TCI state configuration information is associated with uplink resource 0, and TCI state 1 is associated with uplink resource 1. The first downlink channel or signal that the terminal device wants to request the network device to send on the first downlink cell has a QCL relationship with TCI state 1 configured by the first TCI state configuration information, so uplink resource 1 can be selected as the target uplink resource to send the first uplink channel or signal. Accordingly, if the network device receives the first uplink channel or signal through uplink resource 1, the network device can send the first downlink channel or signal that has a QCL relationship with TCI state 1 on the first downlink cell.

[0329] In some embodiments, the first downlink cell and the second downlink cell belong to the same TAG.

[0330] In some embodiments, the first downlink cell is a secondary cell of the terminal device, and the second downlink cell is a primary cell of the terminal device.

[0331] In some embodiments, the first configuration information may include first TCI state configuration information. For example, the first configuration information may include one or more first TCI state identifiers; or the first configuration information may include one or more first TCI states.

[0332] In other embodiments, when the first TCI state configuration information is not configured, the terminal device can determine that the second downlink channel or signal is the SSB on the first downlink cell; or, the terminal device can determine that the second downlink channel or signal is the SSB on the second downlink cell.

[0333] In some embodiments, the first configuration information includes an identifier of the second downlink cell; or, the first configuration information is used to determine an association relationship between the first downlink cell and the second downlink cell.

[0334] (2) Mapping relationship between the index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set

[0335] In some embodiments, the mapping relationship between the index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set may include: the mapping relationship between the index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set within an association period.

[0336] In some embodiments, the length of the association period is configured or predefined by the network device.

[0337] In some embodiments, the one association period includes an integer number of first periods, where the first period is a period of the first uplink resource set.

[0338] Exemplarily, the second downlink channel or signal may include one or more SSBs. Within an association period, starting from SFN 0, the indexes associated with the one or more SSBs are sequentially mapped with one or more uplink resources in the first uplink resource set in order from small to large; wherein, the indexes associated with the one or more SSBs are mapped with the valid uplink resources in the first uplink resource set.

[0339] Exemplarily, the second downlink channel or signal may include one or more SSBs. Within an association period, starting from SFN 0, the indexes associated with the one or more SSBs are mapped sequentially with one or more uplink resources in the first uplink resource set in order from small to large; wherein, the indexes associated with the one or more SSBs are mapped with the uplink resources configured in the first uplink resource set.

[0340] Exemplarily, the second downlink channel or signal may include a downlink reference signal on the second downlink cell configured with one or more first TCI state configuration information. Within an association period, starting from SFN 0, the indexes associated with the one or more first TCI state configuration information are mapped sequentially with one or more uplink resources in the first uplink resource set in order from small to large; wherein, the indexes associated with the one or more first TCI state configuration information are mapped to the valid uplink resources in the first uplink resource set.

[0341] Exemplarily, the second downlink channel or signal may include a downlink reference signal on the second downlink cell configured with one or more first TCI state configuration information. Within an association period, starting from SFN 0, the indexes associated with the one or more first TCI state configuration information are mapped sequentially with one or more uplink resources in the first uplink resource set in order from small to large; wherein, the indexes associated with the one or more first TCI state configuration information are mapped with the uplink resources configured in the first uplink resource set.

[0342] In some embodiments, the second downlink channel or signal may include one or more SSBs, and a mapping relationship between an index associated with the one or more SSBs and one or more uplink resources in the first uplink resource set may be predefined or configured by a network device. For example, the mapping relationship between an index associated with the one or more SSBs and one or more uplink resources in the first uplink resource set may be one-to-one, one-to-many, or many-to-one.

[0343] In some embodiments, the second downlink channel or signal may include a downlink reference signal on the second downlink cell configured by one or more first TCI state configuration information, and a mapping relationship between an index associated with the one or more first TCI state configuration information and one or more uplink resources in the first uplink resource set may be predefined or configured by a network device. For example, the mapping relationship between an index associated with the one or more first TCI state configuration information and one or more uplink resources in the first uplink resource set may be one-to-one, one-to-many, or many-to-one.

[0344] In some embodiments, when an SSB-associated index or an index associated with a first TCI state configuration information is mapped to multiple uplink resources in a first uplink resource set, the multiple uplink resources are used to repeatedly transmit a first uplink channel or signal.

[0345] In some embodiments, the ordering of one or more uplink resources in the first uplink resource set is: if there are multiple code domain resources in one uplink transmission opportunity, they are sorted from small to large according to the index in the code domain; if there are multiple uplink transmission opportunities in the frequency domain at the same time domain position, they are sorted from small to large according to the index in the frequency domain; if there are multiple uplink transmission opportunities in the time domain within a first period, they are sorted from small to large according to the index in the time domain; if there are multiple first periods within an associated period, they are sorted from small to large according to the index of the first period.

[0346] Exemplarily, assuming that the first uplink resource set includes one or more PRACH resources, the one or more PRACH resources are sorted as follows: sorted from small to large according to the PRACH sequence index on a RO (PRACH transmission opportunity); if there are multiple ROs in the frequency domain at the same time domain position, they are sorted from small to large according to the index in the frequency domain; if there are multiple ROs in the time domain within the PRACH resource configuration period (i.e., the first period), they are sorted from small to large according to the index in the time domain; if there are multiple PRACH resource configuration periods within an associated period, they are sorted from small to large according to the index of the PRACH resource configuration period.

[0347] Exemplarily, the first uplink resource set includes one or more PUCCH resources, and the one or more PUCCH resources are sorted as follows: sorted from small to large according to the PUCCH sequence index in a PUCCH transmission opportunity; if there are multiple PUCCH transmission opportunities in the frequency domain at the same time domain position, sorted from small to large according to the index in the frequency domain; if there are multiple PUCCH transmission opportunities in the time domain within the PUCCH resource configuration period (i.e., the first period), sorted from small to large according to the index in the time domain; if there are multiple PUCCH resource configuration periods within an associated period, sorted from small to large according to the index of the PUCCH resource configuration period.

[0348] Exemplarily, the first uplink resource set includes one or more PUSCH resources, and the one or more PUSCH resources are sorted as follows: sorted from small to large according to the DMRS resource index on a PUSCH transmission opportunity, wherein, when sorting from small to large according to the DMRS resource index, when the DMRS sequence index is the same, sorted from small to large according to the DMRS antenna port number; sorted from small to large according to the DMRS sequence index; sorted from small to large according to the index in the time domain within the PUSCH resource configuration period (i.e., the first period); if there are multiple PUSCH resource configuration periods within an associated period, sorted from small to large according to the index of the PUSCH resource configuration period.

[0349] (3) The first configuration information is used to configure uplink resources for requesting multiple downlink cells to send downlink channels or signals

[0350] In some embodiments, the first configuration information is also used to configure a second uplink resource, which may include a second uplink resource set; one or more uplink resources in the second uplink resource set are used to send a second uplink channel or signal, and the second uplink channel or signal is used to request the network device to send a third downlink channel or signal on a third downlink cell.

[0351] In other embodiments, the first uplink resource may also include a second uplink resource set; one or more uplink resources in the second uplink resource set are used to send a second uplink channel or signal, and the second uplink channel or signal is used to request the network device to send a third downlink channel or signal on a third downlink cell.

[0352] It should be understood that the method by which the terminal device requests the network device to send the third downlink channel or signal on the third downlink cell is similar to the method by which the terminal device requests the network device to send the first downlink channel or signal on the first downlink cell, and will not be repeated here.

[0353] It should also be understood that the method for determining the type of the third downlink channel or signal is similar to the method for determining the type of the first downlink channel or signal, and will not be described in detail here.

[0354] It should also be understood that the method for determining the type of the second uplink channel or signal is similar to the method for determining the type of the first uplink channel or signal, and will not be described in detail here.

[0355] In some embodiments, the second uplink resource set is associated with a third downlink cell. For example, the first configuration information may include an identifier of the third downlink cell, and / or the first configuration information may be used to determine the association between the second uplink resource set and the third downlink cell.

[0356] In some embodiments, the second uplink resource set is associated with the cell group to which the third downlink cell belongs. For example, the first configuration information may include an identifier of the cell group to which the third downlink cell belongs; and / or the first configuration information may be used to determine an association relationship between the second uplink resource set and each downlink cell in the cell group to which the third downlink cell belongs; and / or the first configuration information may be used to determine an association relationship between the second uplink resource set and the third downlink cell in the cell group to which the third downlink cell belongs.

[0357] In some embodiments, the QCL reference of the third downlink channel or signal may be determined based on the second downlink channel or signal; or,

[0358] The QCL reference of the third downlink channel or signal may be determined based on a fourth downlink channel or signal on the third downlink cell.

[0359] That is, in some cases, the QCL reference of the first downlink channel or signal and the QCL reference of the third downlink channel or signal are both determined based on the second downlink channel or signal. In other cases, the QCL reference of the first downlink channel or signal is determined based on the second downlink channel or signal, and the QCL reference of the third downlink channel or signal is determined based on the fourth downlink channel or signal.

[0360] Exemplarily, the third downlink cell is different from the second downlink cell.

[0361] Exemplarily, the third downlink cell is different from the second downlink cell, and the third downlink cell and the second downlink cell belong to the same cell group.

[0362] Exemplarily, the third downlink cell and the second downlink cell belong to different cell groups.

[0363] Further, the fourth downlink channel or signal may include an SSB on the third downlink cell; or, the fourth downlink channel or signal may include a downlink reference signal on the third downlink cell configured by the second TCI state configuration information.

[0364] In some embodiments, the first configuration information may be used to configure uplink resources for requesting multiple downlink cells to transmit downlink channels or signals.

[0365] It should be noted that the mapping order of the QCL references of the downlink channels or signals on the multiple downlink cells is: sorted from small to large by cell index.

[0366] In some embodiments, the first uplink resource may be an uplink resource configured on an uplink cell.

[0367] The uplink cell may be a secondary cell of the terminal device; or, the uplink cell may be a primary cell of the terminal device.

[0368] In an embodiment of the present application, for a network energy-saving system, on the auxiliary carrier of a terminal device, the network device may not send an SSB, but an uplink resource for requesting the network device to send an SSB is configured for the auxiliary carrier. When the auxiliary carrier is a timing reference cell for the terminal device to obtain a TA value, the terminal device can request the network device to send an SSB on the auxiliary carrier through the configured uplink resource, so that the terminal device can update the TA value through the SSB sent by the network device, maintain uplink synchronization, and improve network communication performance. Alternatively, on the downlink service cell of the terminal device, the network device may not send an SSB, but an uplink resource for requesting the network device to send an SSB for the downlink service cell is configured on the uplink service cell. When the terminal device has a measurement requirement such as a beam measurement, the terminal device can request the network device to send an SSB (i.e., a first downlink channel or signal) on the downlink service cell through the uplink resource, so that subsequent terminal devices can perform measurements through the SSB sent by the network device to improve network communication performance.

[0369] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0370] It should also be understood that in the various method embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean 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 the present application.

[0371] FIG4 is a schematic diagram of the structure of a communication device 400 provided in an embodiment of the present application, which is applied to a terminal device. As shown in FIG4 , the communication device 400 may include:

[0372] A first receiving unit 410 is configured to receive first configuration information, where the first configuration information is used to configure a first uplink resource, where the first uplink resource includes a first uplink resource set;

[0373] The first sending unit 420 is configured to send a first uplink channel or signal through a target uplink resource in a first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on a first downlink cell.

[0374] In some embodiments, the quasi-co-site QCL reference of the first downlink channel or signal is determined based on the second downlink channel or signal, and the second downlink channel or signal is a downlink channel or signal on a second downlink cell; wherein the second downlink cell is the same as the first downlink cell; or, the second downlink cell and the first downlink cell belong to the same cell group; or, the second downlink cell is different from the first downlink cell.

[0375] In some embodiments, the second downlink channel or signal includes a synchronization signal block SSB on the second downlink cell; or, the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured by the first transmission configuration indication TCI state configuration information.

[0376] In some embodiments, the downlink reference signal on the second downlink cell configured by the first TCI state configuration information includes an SSB or a channel state information reference signal CSI-RS.

[0377] In some embodiments, the first configuration information includes first TCI state configuration information; or, when the first TCI state configuration information is not configured, the second downlink channel or signal includes an SSB on the second downlink cell.

[0378] In some embodiments, the first configuration information is used to configure the SSB on the second downlink cell; or, when the SSB on the second downlink cell is not configured, the SSB on the second downlink cell is determined based on a system message of the second downlink cell.

[0379] In some embodiments, the QCL reference of the first downstream channel or signal is determined based on one or more of the following:

[0380] a first mapping relationship between an index associated with a first downlink channel or signal and one or more uplink resources in a first uplink resource set;

[0381] a second mapping relationship between an index associated with a second downlink channel or signal and one or more uplink resources in the first uplink resource set;

[0382] a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal;

[0383] First configuration information.

[0384] In some embodiments, the indices associated with the first downlink channels or signals are sorted from smallest to largest index.

[0385] In some embodiments, the indices of the second downlink channels or signals are sorted from smallest to largest.

[0386] In some embodiments, the ordering of the one or more uplink resources in the first uplink resource set includes one or more of the following:

[0387] Sort the code domain by index from small to large;

[0388] Sort by index in ascending order in the frequency domain;

[0389] Sort by index in ascending order in the time domain; and,

[0390] Sort by cycle index from small to large.

[0391] In some embodiments, the index associated with the first downlink channel or signal is an index associated with the target uplink resource determined based on the first mapping relationship; or,

[0392] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal associated with the target uplink resource determined based on the second mapping relationship; or,

[0393] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the third mapping relationship; or,

[0394] The QCL reference of the first downlink channel or signal is configured by the first configuration information.

[0395] In some embodiments, the second downlink cell is a primary cell.

[0396] In some embodiments, when the second downlink cell is different from the first downlink cell, the first configuration information is used to determine one or more of the following information: the identifier of the second downlink cell, the cell group to which the second downlink cell belongs, and the association relationship between the first downlink cell and the second downlink cell.

[0397] In some embodiments, the first configuration information is also used to configure a second uplink resource, and the second uplink resource includes a second uplink resource set; the first sending unit 420 is also configured to send a second uplink channel or signal through one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein the third downlink cell is different from the first downlink cell.

[0398] In some embodiments, the first uplink resource also includes a second uplink resource set; the first sending unit 420 is further configured to send a second uplink channel or signal through one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein the third downlink cell is different from the first downlink cell.

[0399] In some embodiments, the third downlink cell and the first downlink cell belong to the same cell group, or the third downlink cell and the first downlink cell belong to different cell groups.

[0400] In some embodiments, the QCL reference of the third downlink channel or signal is determined based on the second downlink channel or signal; or, the QCL reference of the third downlink channel or signal is determined based on the fourth downlink channel or signal on the third downlink cell; wherein the third downlink cell is different from the second downlink cell, and the third downlink cell and the second downlink cell belong to the same cell group.

[0401] In some embodiments, the fourth downlink channel or signal includes an SSB on the third downlink cell; or, the fourth downlink channel or signal includes a downlink reference signal on the third downlink cell configured by the second TCI state configuration information.

[0402] In some embodiments, the first configuration information is used to determine one or more of the following information: an identifier of the third downlink cell, a cell group to which the third downlink cell belongs, and an association between the second uplink resource set and the third downlink cell.

[0403] In some embodiments, the first configuration information is used to determine one or more of the following information: an identifier of the first downlink cell, a cell group to which the first downlink cell belongs, and an association relationship between the first uplink resource set and the first downlink cell.

[0404] In some embodiments, when the target uplink resource includes multiple uplink resources, the multiple uplink resources in the target uplink resource are used to repeatedly send the first uplink channel or signal.

[0405] In some embodiments, the first downlink channel or signal includes one or more of the following: SSB, CSI-RS, tracking reference signal TRS, positioning reference signal PRS, and system message.

[0406] In some embodiments, the first uplink channel or signal includes one or more of the following: a physical random access channel PRACH, a message A MsgA, a physical uplink control channel PUCCH, and a configured granted physical uplink shared channel CG-PUSCH.

[0407] In some embodiments, the first uplink resource is an uplink resource configured on an uplink cell; wherein the uplink cell is a primary cell; or, the uplink cell is a secondary cell.

[0408] An embodiment of the present application provides a communication device, wherein a terminal device can receive first configuration information, the first configuration information being used to configure a first uplink resource, the first uplink resource including a first uplink resource set; and a first uplink channel or signal is sent via a target uplink resource in the first uplink resource set, the first uplink channel or signal being used to request that the first downlink channel or signal be sent on a first downlink cell. In this way, the terminal device sends the first uplink channel or signal via the target uplink resource in the first uplink resource set, enabling a network device to learn that the terminal device needs to receive the first downlink channel or signal on the first downlink cell, thereby improving network communication performance.

[0409] Those skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

[0410] FIG5 is a schematic diagram of the structure of a communication device 500 provided in an embodiment of the present application, which is applied to a network device. As shown in FIG5 , the communication device 500 may include:

[0411] The second sending unit 510 is configured to send first configuration information, where the first configuration information is used to configure a first uplink resource, where the first uplink resource includes a first uplink resource set;

[0412] The processing unit 520 is configured to detect a first uplink channel or signal on one or more uplink resources in the first uplink resource set, where the first uplink channel or signal is used to request that the first downlink channel or signal be sent on the first downlink cell.

[0413] In some embodiments, the second sending unit 510 is configured to send the first downlink channel or signal on the first downlink cell when the first uplink channel or signal is detected on the target uplink resource in the first uplink resource set.

[0414] In some embodiments, the quasi-co-site QCL reference of the first downlink channel or signal is determined based on the second downlink channel or signal, and the second downlink channel or signal is a downlink channel or signal on a second downlink cell; wherein the second downlink cell is the same as the first downlink cell; or, the second downlink cell and the first downlink cell belong to the same cell group; or, the second downlink cell is different from the first downlink cell.

[0415] In some embodiments, the second downlink channel or signal includes a synchronization signal block SSB on the second downlink cell; or, the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured by the first transmission configuration indication TCI state configuration information.

[0416] In some embodiments, the downlink reference signal on the second downlink cell configured by the first TCI state configuration information includes an SSB or a channel state information reference signal CSI-RS.

[0417] In some embodiments, the first configuration information includes first TCI state configuration information; or, when the first TCI state configuration information is not configured, the second downlink channel or signal includes an SSB on the second downlink cell.

[0418] In some embodiments, the first configuration information is used to configure the SSB on the second downlink cell; or, when the SSB on the second downlink cell is not configured, the SSB on the second downlink cell is determined based on a system message of the second downlink cell.

[0419] In some embodiments, the QCL reference of the first downstream channel or signal is determined based on one or more of the following:

[0420] a first mapping relationship between an index associated with a first downlink channel or signal and one or more uplink resources in a first uplink resource set;

[0421] a second mapping relationship between an index associated with a second downlink channel or signal and one or more uplink resources in the first uplink resource set;

[0422] a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal;

[0423] First configuration information.

[0424] In some embodiments, the indices associated with the first downlink channels or signals are sorted from smallest to largest index.

[0425] In some embodiments, the indices of the second downlink channels or signals are sorted from smallest to largest.

[0426] In some embodiments, the ordering of the one or more uplink resources in the first uplink resource set includes one or more of the following:

[0427] Sort the code domain by index from small to large;

[0428] Sort by index in ascending order in the frequency domain;

[0429] Sort by index in ascending order in the time domain; and,

[0430] Sort by cycle index from small to large.

[0431] In some embodiments, the index associated with the first downlink channel or signal is an index associated with the target uplink resource determined based on the first mapping relationship; or,

[0432] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal associated with the target uplink resource determined based on the second mapping relationship; or,

[0433] The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the third mapping relationship; or,

[0434] The QCL reference of the first downlink channel or signal is configured by the first configuration information.

[0435] In some embodiments, the second downlink cell is a primary cell.

[0436] In some embodiments, when the second downlink cell is different from the first downlink cell, the first configuration information is used to determine one or more of the following information: the identifier of the second downlink cell, the cell group to which the second downlink cell belongs, and the association relationship between the first downlink cell and the second downlink cell.

[0437] In some embodiments, the first configuration information is also used to configure a second uplink resource, and the second uplink resource includes a second uplink resource set; the processing unit 520 is also configured to detect a second uplink channel or signal on one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein the third downlink cell is different from the first downlink cell.

[0438] In some embodiments, the first uplink resource also includes a second uplink resource set; the processing unit 520 is further configured to detect a second uplink channel or signal on one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein the third downlink cell is different from the first downlink cell.

[0439] In some embodiments, the second sending unit 510 is further configured to send a third downlink channel or signal on a third downlink cell when a second uplink channel or signal is detected on one or more uplink resources in the second uplink resource set.

[0440] In some embodiments, the third downlink cell and the first downlink cell belong to the same cell group, or the third downlink cell and the first downlink cell belong to different cell groups.

[0441] In some embodiments, the QCL reference of the third downlink channel or signal is determined based on the second downlink channel or signal; or, the QCL reference of the third downlink channel or signal is determined based on the fourth downlink channel or signal on the third downlink cell; wherein the third downlink cell is different from the second downlink cell, and the third downlink cell and the second downlink cell belong to the same cell group.

[0442] In some embodiments, the fourth downlink channel or signal includes an SSB on the third downlink cell; or, the fourth downlink channel or signal includes a downlink reference signal on the third downlink cell configured by the second TCI state configuration information.

[0443] In some embodiments, the first configuration information is used to determine one or more of the following information: an identifier of the third downlink cell, a cell group to which the third downlink cell belongs, and an association between the second uplink resource set and the third downlink cell.

[0444] In some embodiments, the first configuration information is used to determine one or more of the following information: an identifier of the first downlink cell, a cell group to which the first downlink cell belongs, and an association relationship between the first uplink resource set and the first downlink cell.

[0445] In some embodiments, the first downlink channel or signal includes one or more of the following: SSB, CSI-RS, tracking reference signal TRS, positioning reference signal PRS, and system message.

[0446] In some embodiments, the first uplink channel or signal includes one or more of the following: a physical random access channel PRACH, a message A MsgA, a physical uplink control channel PUCCH, and a configured granted physical uplink shared channel CG-PUSCH.

[0447] In some embodiments, the first uplink resource is an uplink resource configured on an uplink cell; wherein the uplink cell is a primary cell; or, the uplink cell is a secondary cell.

[0448] An embodiment of the present application provides a communication device, wherein a network device can be configured to send first configuration information, the first configuration information being used to configure a first uplink resource, the first uplink resource including a first uplink resource set; and detect a first uplink channel or signal on one or more uplink resources in the first uplink resource set, the first uplink channel or signal being used to request that the first downlink channel or signal be sent on a first downlink cell. In this way, by detecting the first uplink channel or signal on one or more uplink resources in the first uplink resource set, the network device can learn that a terminal device needs to receive the first downlink channel or signal on the first downlink cell, thereby improving network communication performance.

[0449] Those skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

[0450] FIG6 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 600 may be a terminal device or a network device. The communication device 600 shown in FIG6 may include a processor 610 and a memory 620, wherein:

[0451] The memory 620 may be used to store computer-executable instructions;

[0452] The processor 610 is connected to the memory 620 and is configured to implement the method in the embodiment of the present application by executing computer-executable instructions.

[0453] The memory 620 may be a separate device from the processor 610 , or may be integrated into the processor 610 .

[0454] In some embodiments, as shown in FIG6 , the communication device 600 may further include a transceiver 630 , and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0455] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

[0456] In some embodiments, the communication device 600 may be a terminal device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0457] In some embodiments, the communication device 600 may be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0458] FIG7 is a schematic structural diagram of a chip provided in an embodiment of the present application. The chip 700 shown in FIG7 includes a processor 710 and a memory 720, wherein:

[0459] The processor 710 can call and run a computer program from the memory 720, so that the device equipped with the chip executes the method in the embodiment of the present application.

[0460] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0461] In some embodiments, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0462] In some embodiments, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0463] In some embodiments, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0464] In some embodiments, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0465] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0466] FIG8 is a schematic block diagram of a communication system provided in an embodiment of the present application. As shown in FIG8 , the communication system 800 includes a terminal device 810 and a network device 820 .

[0467] Among them, the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0468] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0469] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0470] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0471] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by at least one processor, the method in the embodiment of the present application is implemented.

[0472] In some embodiments, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0473] In some embodiments, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0474] An embodiment of the present application also provides a computer program product, which includes a computer storage medium, the computer storage medium storing a computer program, and the computer program including instructions that can be executed by at least one processor. When the instructions are executed by at least one processor, the method in the embodiment of the present application is implemented.

[0475] In some embodiments, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0476] In some embodiments, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0477] The embodiments of the present application also provide a computer program, which enables a computer to execute the method in the embodiments of the present application.

[0478] In some embodiments, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0479] In some embodiments, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0480] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0481] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0482] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0483] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0484] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0485] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0486] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, the method comprises: receiving first configuration information for configuring a first uplink resource, the first uplink resource including a first uplink resource set; sending a first uplink channel or signal through a target uplink resource in the first uplink resource set, the first uplink channel or signal being used to request to send a first downlink channel or signal on a first downlink cell.

2. The method according to claim 1, wherein, the quasi - co - location (QCL) reference of the first downlink channel or signal is determined based on a second downlink channel or signal, the second downlink channel or signal being a downlink channel or signal on a second downlink cell; wherein the second downlink cell is the same as the first downlink cell; or, the second downlink cell and the first downlink cell belong to the same cell group; or, the second downlink cell is different from the first downlink cell.

3. The method according to claim 2, wherein, the second downlink channel or signal includes a synchronization signal block (SSB) on the second downlink cell; or, the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured by first transmission configuration indication (TCI) state configuration information.

4. The method according to claim 3, wherein, the downlink reference signal on the second downlink cell configured by the first TCI state configuration information includes an SSB or a channel state information reference signal (CSI - RS).

5. The method according to claim 3 or 4, wherein, the first configuration information includes the first TCI state configuration information; or, in the case where the first TCI state configuration information is not configured, the second downlink channel or signal includes an SSB on the second downlink cell.

6. The method according to any one of claims 3 to 5, wherein, the first configuration information is used to configure an SSB on the second downlink cell; or, in the case where an SSB on the second downlink cell is not configured, the SSB on the second downlink cell is determined based on the system message of the second downlink cell.

7. The method according to any one of claims 2 to 6, wherein, the QCL reference of the first downlink channel or signal is determined based on one or more of the following: a first mapping relationship between an index associated with the first downlink channel or signal and one or more uplink resources in the first uplink resource set; a second mapping relationship between an index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set; a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal; the first configuration information.

8. The method according to claim 7, wherein, the indexes associated with the first downlink channel or signal are sorted in ascending order of the index.

9. The method according to claim 7 or 8, wherein, the indexes associated with the second downlink channel or signal are sorted in ascending order of the index.

10. The method according to any one of claims 7 to 9, wherein, The sorting of one or more uplink resources in the first uplink resource set includes one or more of the following: Sorting in ascending order of index in the code domain; Sorting in ascending order of index in the frequency domain; Sorting in ascending order of index in the time domain; and Sorting in ascending order of the index of the period.

11. The method according to any one of claims 7 to 10, wherein, the index associated with the first downlink channel or signal is the index associated with the target uplink resource determined based on the first mapping relationship; or, the QCL reference of the first downlink channel or signal is the index associated with the second downlink channel or signal determined based on the second mapping relationship and associated with the target uplink resource; or, the QCL reference of the first downlink channel or signal is the index associated with the second downlink channel determined based on the third mapping relationship or signal; or, the QCL reference of the first downlink channel or signal is configured by the first configuration information.

12. The method according to any one of claims 2 to 11, wherein, the second downlink cell is the primary cell.

13. The method according to any one of claims 2 to 12, wherein, when the second downlink cell is different from the first downlink cell, the first configuration information is used to determine one or more of the following information: the identifier of the second downlink cell, the cell group to which the second downlink cell belongs, and the association relationship between the first downlink cell and the second downlink cell.

14. The method according to any one of claims 2 to 13, wherein, the first configuration information is further used to configure a second uplink resource, and the second uplink resource includes a second uplink resource set; the method further includes: sending a second uplink channel or signal through one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein, the third downlink cell is different from the first downlink cell.

15. The method according to any one of claims 2 to 13, wherein, the first uplink resource further includes a second uplink resource set; the method further includes: sending a second uplink channel or signal through one or more uplink resources in the second uplink resource set, and the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein, the third downlink cell is different from the first downlink cell.

16. The method according to claim 14 or 15, wherein, the third downlink cell belongs to the same cell group as the first downlink cell, or the third downlink cell belongs to a different cell group from the first downlink cell.

17. The method according to any one of claims 14 to 16, wherein, the QCL reference of the third downlink channel or signal is determined based on the second downlink channel or signal; or, the QCL reference of the third downlink channel or signal is determined based on a fourth downlink channel or signal on the third downlink cell; Among them, the third downlink cell is different from the second downlink cell, and the third downlink cell and the second downlink cell belong to the same cell group.

18. The method according to claim 17, wherein, the fourth downlink channel or signal includes the SSB on the third downlink cell; or, the fourth downlink channel or signal includes the downlink reference signal on the third downlink cell configured with the second TCI state configuration information.

19. The method according to any one of claims 14 to 18, wherein, the first configuration information is used to determine one or more of the following information: the identifier of the third downlink cell, the cell group to which the third downlink cell belongs, the association relationship between the second uplink resource set and the third downlink cell.

20. The method according to any one of claims 1 to 19, wherein, the first configuration information is used to determine one or more of the following information: the identifier of the first downlink cell, the cell group to which the first downlink cell belongs, the association relationship between the first uplink resource set and the first downlink cell.

21. The method according to any one of claims 1 to 20, wherein, when the target uplink resource includes multiple uplink resources, the multiple uplink resources in the target uplink resource are used to repeatedly transmit the first uplink channel or signal.

22. The method according to any one of claims 1 to 21, wherein, the first downlink channel or signal includes one or more of the following: SSB, CSI-RS, tracking reference signal TRS, positioning reference signal PRS, system message.

23. The method according to any one of claims 1 to 22, wherein, the first uplink channel or signal includes one or more of the following: physical random access channel PRACH, message A MsgA, physical uplink control channel PUCCH, configured grant physical uplink shared channel CG-PUSCH.

24. The method according to any one of claims 1 to 23, wherein, the first uplink resource is an uplink resource configured on an uplink cell; wherein, the uplink cell is a primary cell; or, the uplink cell is a secondary cell.

25. A communication method, the method comprises: sending first configuration information, the first configuration information being used to configure a first uplink resource, and the first uplink resource includes a first uplink resource set; detecting a first uplink channel or signal on one or more uplink resources in the first uplink resource set, the first uplink channel or signal being used to request to send a first downlink channel or signal on a first downlink cell.

26. The method according to claim 25, wherein, the method further comprises: when the first uplink channel or signal is detected on a target uplink resource in the first uplink resource set, sending the first downlink channel or signal on the first downlink cell.

27. The method according to claim 26, wherein, The quasi - co - location (QCL) reference of the first downlink channel or signal is determined based on the second downlink channel or signal, where the second downlink channel or signal is a downlink channel or signal on a second downlink cell; wherein, the second downlink cell is the same as the first downlink cell; or, the second downlink cell and the first downlink cell belong to the same cell group; or, the second downlink cell is different from the first downlink cell.

28. The method according to claim 27, wherein, the second downlink channel or signal includes a synchronization signal block (SSB) on the second downlink cell; or, the second downlink channel or signal includes a downlink reference signal on the second downlink cell configured with first transmission configuration indication (TCI) state configuration information.

29. The method according to claim 28, wherein, the downlink reference signal on the second downlink cell configured with the first TCI state configuration information includes an SSB or a channel state information reference signal (CSI - RS).

30. The method according to claim 28 or 29, wherein, the first configuration information includes the first TCI state configuration information; or, in the case where the first TCI state configuration information is not configured, the second downlink channel or signal includes an SSB on the second downlink cell.

31. The method according to any one of claims 28 to 30, wherein, the first configuration information is used to configure an SSB on the second downlink cell; or, in the case where an SSB on the second downlink cell is not configured, the SSB on the second downlink cell is determined based on the system message of the second downlink cell.

32. The method according to any one of claims 27 to 31, wherein, the QCL reference of the first downlink channel or signal is determined based on one or more of the following: a first mapping relationship between an index associated with the first downlink channel or signal and one or more uplink resources in the first uplink resource set; a second mapping relationship between an index associated with the second downlink channel or signal and one or more uplink resources in the first uplink resource set; a third mapping relationship between an index associated with the first downlink channel or signal and an index associated with the second downlink channel or signal; the first configuration information.

33. The method according to claim 32, wherein, the indices associated with the first downlink channel or signal are sorted in ascending order of the index.

34. The method according to claim 32 or 33, wherein, the indices associated with the second downlink channel or signal are sorted in ascending order of the index.

35. The method according to any one of claims 32 to 34, wherein, the sorting of one or more uplink resources in the first uplink resource set includes one or more of the following: sorting in ascending order of the index in the code domain; sorting in ascending order of the index in the frequency domain; sorting in ascending order of the index in the time domain; and, sorting in ascending order of the index of the period.

36. The method according to any one of claims 32 to 35, wherein, The index associated with the first downlink channel or signal is an index associated with the target uplink resource determined based on the first mapping relationship; or, The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the second mapping relationship and associated with the target uplink resource; or, The QCL reference of the first downlink channel or signal is an index associated with the second downlink channel or signal determined based on the third mapping relationship; or, The QCL reference of the first downlink channel or signal is configured by the first configuration information.

37. The method according to any one of claims 27 to 36, wherein, The second downlink cell is the primary cell.

38. The method according to any one of claims 27 to 37, wherein, In the case where the second downlink cell is different from the first downlink cell, the first configuration information is used to determine one or more of the following information: the identifier of the second downlink cell, the cell group to which the second downlink cell belongs, the association relationship between the first downlink cell and the second downlink cell.

39. The method according to any one of claims 27 to 38, wherein, The first configuration information is further used to configure a second uplink resource, and the second uplink resource includes a second uplink resource set; the method further includes: Detecting a second uplink channel or signal on one or more uplink resources in the second uplink resource set, where the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein, the third downlink cell is different from the first downlink cell.

40. The method according to any one of claims 27 to 38, wherein, The first uplink resource further includes a second uplink resource set; the method further includes: Detecting a second uplink channel or signal on one or more uplink resources in the second uplink resource set, where the second uplink channel or signal is used to request to send a third downlink channel or signal on a third downlink cell; wherein, the third downlink cell is different from the first downlink cell.

41. The method according to claim 39 or 40, wherein, The method further includes: When the second uplink channel or signal is detected on one or more uplink resources in the second uplink resource set, sending the third downlink channel or signal on the third downlink cell.

42. The method according to any one of claims 39 to 41, wherein, The third downlink cell belongs to the same cell group as the first downlink cell, or, the third downlink cell belongs to a different cell group from the first downlink cell.

43. The method according to any one of claims 39 to 42, wherein, The QCL reference of the third downlink channel or signal is determined based on the second downlink channel or signal; or, The QCL reference of the third downlink channel or signal is determined based on a fourth downlink channel or signal on the third downlink cell; Wherein, the third downlink cell is different from the second downlink cell, and the third downlink cell and the second downlink cell belong to the same cell group.

44. The method according to claim 43, wherein, the fourth downlink channel or signal includes the SSB on the third downlink cell; or, the fourth downlink channel or signal includes the downlink reference signal on the third downlink cell configured with the second TCI state configuration information.

45. The method according to any one of claims 39 to 44, wherein, the first configuration information is used to determine one or more of the following information: the identifier of the third downlink cell, the cell group to which the third downlink cell belongs, the association relationship between the second uplink resource set and the third downlink cell.

46. The method according to any one of claims 25 to 45, wherein, the first configuration information is used to determine one or more of the following information: the identifier of the first downlink cell, the cell group to which the first downlink cell belongs, the association relationship between the first uplink resource set and the first downlink cell.

47. The method according to any one of claims 25 to 46, wherein, the first downlink channel or signal includes one or more of the following: SSB, CSI-RS, tracking reference signal TRS, positioning reference signal PRS, system message.

48. The method according to any one of claims 25 to 47, wherein, the first uplink channel or signal includes one or more of the following: physical random access channel PRACH, message A MsgA, physical uplink control channel PUCC H, configured grant physical uplink shared channel CG-PUSCH.

49. The method according to any one of claims 25 to 48, wherein, the first uplink resource is an uplink resource configured on an uplink cell; wherein, the uplink cell is a primary cell; or, the uplink cell is a secondary cell.

50. A communication device, applied to a terminal device, the device comprises: a first receiving unit, configured to receive first configuration information, the first configuration information being used to configure a first uplink resource, the first uplink resource including a first uplink resource set; a first sending unit, configured to send a first uplink channel or signal through a target uplink resource in the first uplink resource set, the first uplink channel or signal being used to request to send a first downlink channel or signal on a first downlink cell.

51. A communication device, applied to a network device, the device comprises: a second sending unit, configured to send first configuration information, the first configuration information being used to configure a first uplink resource, the first uplink resource including a first uplink resource set; a processing unit, configured to detect a first uplink channel or signal on one or more uplink resources in the first uplink resource set, the first uplink channel or signal being used to request to send a first downlink channel or signal on a first downlink cell.

52. A communication device, comprises: a memory, configured to store computer-executable instructions; A processor, connected to the memory, for implementing the method according to any one of claims 1 to 24 by executing the computer-executable instructions; or, for implementing the method according to any one of claims 25 to 49.

53. A chip, the chip comprises: A processor, for calling and running a computer program from a memory, such that a device installed with the chip executes the method according to any one of claims 1 to 24, or executes the method according to any one of claims 25 to 49.

54. A computer-readable storage medium storing a computer program, the computer program, when executed by at least one processor, implements the method according to any one of claims 1 to 24, or implements the method according to any one of claims 25 to 49.

55. A computer program product comprising a computer storage medium storing a computer program, the computer program comprising instructions executable by at least one processor, and when the instructions are executed by the at least one processor, implementing the method according to any one of claims 1 to 24, or implementing the method according to any one of claims 25 to 49.

56. A computer program that causes a computer to execute the method according to any one of claims 1 to 24, or to implement the method according to any one of claims 25 to 49.

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