Communication method and device

Abstract

A communication method and device, the method comprising: a first communication device obtains first information and first downlink control information DCI. The first DCI includes information blocks corresponding to at least one communication device respectively, and the at least one communication device includes the first communication device. The first information is used to determine the relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information. The second information is used to determine the relevant information of the first reference signal, the first reference signal is associated with the first configuration information, and the third information is used to determine the relevant information of the second reference signal, the second reference signal is associated with the second configuration information, and the first configuration information is different from the second configuration information. The first communication device determines the second information and / or third information in the first DCI based on the first information. The above method can improve the flexibility of scheduling reference signals.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communications, and in particular to a communication method and apparatus. Background Art

[0002] In the fifth-generation wireless access system standard new radio (NR), the network equipment will configure the terminal device to send a sounding reference signal (SRS). In different application scenarios, SRS can achieve different functions. For example, SRS can achieve four different functions, including codebook-based uplink channel state information (CSI) detection, non-codebook-based uplink CSI detection, beam management, and antenna switching. Among them, for time division duplexing (TDD) systems, considering the reciprocity of uplink and downlink channels, the network equipment can obtain downlink channel information based on the uplink channel information detected by the SRS used for the antenna switching function, thereby performing downlink precoding configuration.

[0003] Specifically, user equipment (UE) can be configured with one or more SRS resource sets through the high-level parameter SRS-ResourceSet. The applicability of each SRS resource set is configured by the use case (usage) in the high-level parameter SRS-ResourceSet. Exemplarily, usage includes four use cases: codebook, non-codebook, beam management, and antenna switching, which correspond to the four different functions that can be achieved by the above-mentioned SRS. For each SRS resource set, a UE can be configured with one or more SRS resources by the high-level parameter SRS-Resource.

[0004] For the downlink control information (DCI) format, triggering SRS transmission must either be bound to data scheduling, or usage can only be configured as one type, which makes SRS scheduling inflexible. Summary of the Invention

[0005] The embodiments of the present application provide a communication method and apparatus to solve the problem of inflexible SRS scheduling.

[0006] In the first aspect, an embodiment of the present application provides a communication method, the method comprising: a first communication device obtains first information and first downlink control information DCI; the first DCI includes information blocks corresponding to at least one communication device, the at least one communication device including the first communication device; the first information is used to determine relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to determine relevant information of a first reference signal, the first reference signal is associated with the first configuration information; the third information is used to determine relevant information of a second reference signal, the second reference signal is associated with the second configuration information; the first configuration information is different from the second configuration information; the second information and / or the third information are determined in the first DCI based on the first information. It should be understood that this method can be applied to a terminal device or a chip / chip system on a terminal device.

[0007] Using the above method, the first DCI can trigger multiple terminal devices to send reference signals for different configurations at one time, further saving the signaling overhead of the physical downlink control channel. At the same time, the transmission scheduling of the non-periodic reference signal is decoupled from the data scheduling, making the configuration of the reference signal more independent and flexible, thereby increasing the flexibility of system scheduling.

[0008] In one possible design, the information block corresponding to the first communication device includes the second information and the third information; the relevant information of the first reference signal is determined based on the second information; and the relevant information of the second reference signal is determined based on the third information; and the first reference signal and the second reference signal are sent.

[0009] With the above design, the terminal device can send the first reference signal and the second reference signal according to the second information and the third information respectively.

[0010] In one possible design, the information block corresponding to the first communication device includes the third information; relevant information of the second reference signal is determined based on the third information; and the second reference signal is sent.

[0011] With the above design, the terminal device can send a second reference signal based on the third information.

[0012] In one possible design, the third information includes at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication; wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set; the relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located; the relevant information for partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; the relevant information for port indication is used to indicate the number of ports of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the switching of the number of ports of the second reference signal.

[0013] With the above design, the third information can be a combination of multiple fields.

[0014] In one possible design, the information block corresponding to the first communication device includes second information and third information; the first information is used to determine the starting position of the second information and the starting position of the third information.

[0015] With the above design, the terminal device can determine the second information and the third information in the information block corresponding to the first communication device according to the starting position of the second information and the starting position of the third information.

[0016] In one possible design, the first information is used to determine the starting position, first indication information and second indication information of the information block corresponding to the first communication device; the first indication information is used to determine whether the information block corresponding to the first communication device includes the second information; and the second indication information is used to determine whether the information block corresponding to the first communication device includes the third information.

[0017] With the above design, the terminal device can determine the starting position, first indication information and second indication information of the information block corresponding to the first communication device based on the first information, and then determine whether the information block corresponding to the first communication device includes the second information and / or third information.

[0018] In one possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information; the third indication information is used to determine whether the information block corresponding to the first communication device includes the third information.

[0019] Using the above design, the terminal device can determine the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information based on the first information, and then determine whether the information block corresponding to the first communication device includes the second information and / or the third information.

[0020] In one possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device and the length of the second information.

[0021] With the above design, the terminal device can determine the starting position of the information block corresponding to the first communication device and the length of the second information based on the first information, and then determine whether the information block corresponding to the first communication device includes the second information and / or third information.

[0022] In one possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device and fourth indication information, and the fourth indication information is used to indicate the starting position of the third information.

[0023] With the above design, the terminal device can determine the starting position of the information block corresponding to the first communication device and the fourth indication information based on the first information, and then determine whether the information block corresponding to the first communication device includes the second information and / or the third information.

[0024] In one possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device and fifth indication information, and the fifth indication information is used to indicate the starting position of the second information.

[0025] With the above design, the terminal device can determine the starting position of the information block corresponding to the first communication device and the fifth indication information based on the first information, and then determine whether the information block corresponding to the first communication device includes the second information and / or the third information.

[0026] In one possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device and sixth indication information, and the sixth indication information is used to determine whether the information block corresponding to the first communication device includes the second information.

[0027] With the above design, the terminal device can determine the starting position and sixth indication information of the information block corresponding to the first communication device based on the first information, and then determine whether the information block corresponding to the first communication device includes the second information and / or the third information.

[0028] In one possible design, the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

[0029] In another possible design, the first configuration information includes parameters for carrier switching, the second configuration information does not include parameters for carrier switching, or the second configuration information includes parameters for non-carrier switching.

[0030] In a second aspect, an embodiment of the present application provides a communication method, the method comprising: a second communication device generates a first DCI and a first information; the first information is configured by first high-level configuration information; the first DCI includes an information block corresponding to at least one communication device, the at least one communication device including the first communication device; the first information is used to indicate relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to indicate relevant information of a first reference signal, the first reference signal is associated with the first configuration information; the third information is used to indicate relevant information of a second reference signal, the second reference signal is associated with the second configuration information; the first configuration information is different from the second configuration information; and the first information and the first DCI are sent. It should be understood that this method can be applied to a network device or a chip / chip system on a network device.

[0031] In one possible design, the information block corresponding to the first communication device includes the second information and the third information; and receives the first reference signal and the second reference signal.

[0032] In one possible design, the information block corresponding to the first communication device includes the third information; and receives the second reference signal.

[0033] In one possible design, the third information includes at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication; wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set; the relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located; the relevant information for partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; the relevant information for port indication is used to indicate the number of ports of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the switching of the number of ports of the second reference signal.

[0034] In one possible design, the information block corresponding to the first communication device includes second information and third information; the first information is used to indicate the starting position of the second information and the starting position of the third information.

[0035] In one possible design, the first information is used to indicate the starting position, first indication information and second indication information of the information block corresponding to the first communication device; the first indication information is used to indicate whether the information block corresponding to the first communication device includes the second information; the second indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

[0036] In one possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information; the third indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

[0037] In one possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication device and the length of the second information.

[0038] In one possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication device and the fourth indication information, and the fourth indication information is used to indicate the starting position of the third information.

[0039] In one possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication device and fifth indication information, and the fifth indication information is used to indicate the starting position of the second information.

[0040] In one possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication device and sixth indication information, and the sixth indication information is used to indicate whether the information block corresponding to the first communication device includes the second information.

[0041] In one possible design, the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

[0042] In another possible design, the first configuration information includes parameters for carrier switching, the second configuration information does not include parameters for carrier switching, or the second configuration information includes parameters for non-carrier switching.

[0043] In a third aspect, an embodiment of the present application provides a communication device, which includes a module for executing the first aspect and any possible design of the first aspect, or a module for executing the second aspect and any possible design of the second aspect.

[0044] In a fourth aspect, a communication device is provided, comprising a processor. The processor is coupled to a memory and can be configured to execute instructions in the memory to implement any possible design of the first aspect, or a module that executes any possible design of the second aspect and the second aspect. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface, the communication interface being configured to input and / or output information, the information comprising at least one of instructions and data. Optionally, the communication device further comprises a memory.

[0045] In one implementation, the communication device is a terminal device or a network device. When the communication device is a terminal device or a network device, the communication interface may be a transceiver or an input / output interface. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.

[0046] In another implementation, the communication device is a chip or chip system configured in a terminal device or network device. When the communication device is a chip or chip system configured in a terminal device, the communication interface can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuits. The processor can also be embodied as a processing circuit or a logic circuit.

[0047] In a fifth aspect, an embodiment of the present application provides a communication device, comprising a processor and an interface circuit, wherein the interface circuit is used to input and / or output information, wherein the information includes at least one of instructions and data, and the interface circuit can receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the first aspect and any possible design of the first aspect through a logic circuit or execution code instructions, or to implement the second aspect and any possible design of the second aspect.

[0048] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a communication device, the first aspect and any possible design of the first aspect are implemented, or the second aspect and any possible design of the second aspect are implemented.

[0049] In the seventh aspect, an embodiment of the present application provides a computer program product comprising a program, which, when running on a communication device, enables the communication device to execute the first aspect and any possible design of the first aspect or execute the second aspect and any possible design of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1A schematic diagram of the architecture of a mobile communication system provided in an embodiment of the present application;

[0051] Figure 2 One of the schematic diagrams of the information block provided in the embodiment of the present application;

[0052] Figure 3 A flowchart summarizing the communication method provided in an embodiment of the present application;

[0053] Figure 4 One of the schematic diagrams of an information block including second information and third information is provided for an embodiment of the present application;

[0054] Figure 5 A second schematic diagram of an information block including second information and third information is provided for an embodiment of the present application;

[0055] Figure 6 This is one of the structural diagrams of the communication device provided in the embodiment of the present application;

[0056] Figure 7 This is a second structural diagram of the communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0058] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, 5G mobile communication system or new radio access technology (NR). Among them, the 5G mobile communication system may include non-standalone (NSA) and / or standalone (SA).

[0059] The technical solution provided in this application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X may include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication or vehicle to network (V2N) communication, etc.

[0060] The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, etc. This application does not limit this.

[0061] It should be noted that:

[0062] First, in this application, "used to indicate" can include being used for direct indication and being used for indirect indication. When describing that a certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, but it does not mean that the indication information must carry A.

[0063] The information indicated by the indication information is referred to as the information to be indicated. In specific implementations, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, where the other information is associated with the information to be indicated. Alternatively, only a portion of the information to be indicated can be indicated, while the remaining portion is known or agreed upon in advance. For example, a pre-agreed (e.g., protocol-specified) order of each piece of information can be used to indicate specific information, thereby reducing indication overhead to a certain extent. Furthermore, common portions of each piece of information can be identified and indicated uniformly, reducing the indication overhead associated with indicating the same information separately. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately. The transmission period and / or transmission timing of these sub-information can be the same or different. The specific transmission method is not limited in this application. The transmission period and / or transmission timing of these sub-information can be pre-defined, for example, according to a protocol, or can be configured by the transmitting device sending configuration information to the receiving device. The configuration information may include, for example but not limited to, one or a combination of at least two of radio resource control signaling, medium access control (MAC) layer signaling, and physical layer signaling. The radio resource control signaling may include, for example, radio resource control (RRC) signaling; the MAC layer signaling may include, for example, a MAC control element (CE); and the physical layer signaling may include, for example, downlink control information (DCI).

[0064] Second, the first, second, and various numerical numbers in the embodiments shown below are merely distinctions for ease of description and are not intended to limit the scope of the embodiments of the present application. For example, to distinguish different indication information, etc.

[0065] Third, in this application, "used to indicate" and "used to determine" can be interchangeable. For a certain information or indication information, it can be considered from the network side that it is used to indicate a certain object to be indicated, or that it is used by the receiving end to determine the object to be indicated; from the terminal side, a certain information or indication information can be considered to be used to indicate a certain object to be indicated, or it can be considered to be used to determine the object to be indicated.

[0066] Fourth, "pre-set", "pre-defined" or "pre-configured" 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, including a terminal device and a network device). This application does not limit its specific implementation method. Among them, "saving" can mean saving in one or more memories. The one or more memories can be set separately or integrated in an encoder or decoder, a processor, or a communication device. The one or more memories can also be partially set separately and partially integrated in a decoder, a processor, or a communication device. The type of memory can be any form of storage medium, which is not limited by this application.

[0067] Fifth, the "protocol" involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems. This application does not limit this.

[0068] Fifth, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple, respectively.

[0069] Sixth, in the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device (such as a terminal device or a network device) will make corresponding processing under certain objective circumstances. It does not limit the time, and does not require the device (such as a terminal device or a network device) to have a judgment action when implementing it, nor does it mean that there are other limitations.

[0070] First, the architecture of the mobile communication system used in the embodiments of the present application is briefly introduced.

[0071] Figure 1 This is a schematic diagram of the architecture of the mobile communication system used in the embodiment of this application. Figure 1 As shown, the mobile communication system includes a core network device 110, a wireless access network device 120 and at least one terminal device (such as Figure 1The terminal devices are connected to the radio access network equipment wirelessly, and the radio access network equipment is connected to the core network equipment wirelessly or by wire. The core network equipment and the radio access network equipment can be independent and distinct physical devices, or the core network equipment functions and the radio access network equipment logical functions can be integrated into the same physical device, or a single physical device can integrate some of the core network equipment functions and some of the radio access network equipment functions. The terminal devices can be fixed or mobile. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 The embodiments of the present application do not limit the number of core network devices, wireless access network devices, and terminal devices included in the mobile communication system.

[0072] The terminal device is connected to the wireless access network device in a wireless manner, thereby accessing the mobile communication system. The wireless access network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes part of the functions of a base station, for example, it can be a centralized unit (CU) or a distributed unit (DU). The embodiments of this application do not limit the specific technology and specific device form adopted by the wireless access network device. In this application, the wireless access network device is referred to as the network device. Unless otherwise specified, the network device refers to the wireless access network device.

[0073] Terminal devices may also be referred to as terminals, user equipment (UE), mobile stations, mobile terminals, etc. Terminal devices may be mobile phones, tablet computers, computers with wireless transceiver functions, virtual reality terminal devices, augmented reality terminal devices, wireless terminals used in industrial control, wireless terminals used in unmanned driving, wireless terminals used in remote surgery, wireless terminals used in smart grids, wireless terminals used in transportation safety, wireless terminals used in smart cities, wireless terminals used in smart homes, etc. The embodiments of this application do not limit the specific technologies and specific device forms used by the terminal devices.

[0074] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water; can also be deployed in the air on aircraft, balloons and artificial satellites. The embodiments of this application do not limit the application scenarios of the network equipment and terminal equipment.

[0075] Network devices and terminal devices can communicate through licensed spectrum, unlicensed spectrum, or both. Network devices and terminal devices can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz simultaneously. The embodiments of the present application do not limit the spectrum resources used between network devices and terminal devices.

[0076] The following is a brief description of the technical concepts involved in the embodiments of this application.

[0077] 1. Detection reference signal

[0078] From the perspective of time domain behavior, an NR SRS resource set can be configured as three time domain behavior modes: periodic sounding reference signal (P-SRS), semi-persistent sounding reference signal (SP-SRS) and aperiodic sounding reference signal (AP-SRS) through the high-level parameter resource type (resourceType).

[0079] Among them, the NR time slot format includes downlink symbols, uplink symbols and flexible symbols, and SRS can only be sent on uplink symbols or flexible symbols. The network device configures each SRS resource through high-level parameter resource mapping to send the number of consecutive orthogonal frequency division multiplexing (OFDM) symbols of the resource and the starting symbol position of the resource in the triggered time slot. For periodic SRS, each SRS resource will be configured with a time slot-level period and a time slot-level offset, and the UE will repeatedly send the SRS according to the period. For semi-persistent SRS, each SRS resource will also be configured with a time slot-level period and a time slot-level offset, and an activation or deactivation command will be sent through a media access control information element (MAC control element, MAC CE). When the semi-persistent SRS is activated, the UE will repeatedly send the SRS according to the period until it receives a deactivation command. Among them, for aperiodic sounding reference signal (aperiodic SRS, AP-SRS), when the UE receives a downlink control information (downlink control information, DCI) for downlink scheduling, or group common DCI or uplink scheduling DCI, if the DCI includes an SRS request (SRS request) field, then the SRS request (SRS request) field contains at least one state for triggering the configured one or more SRS resource sets. Exemplarily, the SRS request field has 2 bits, and the specific definition is shown in Table 1. Among them, for DCI format (format) 2_3, the high-layer parameter sounding reference signal transmission power control downlink control channel group (srs-TPC-PDCCH-Group) can be set to "type A (typeA)" or "type B (typeB)". For DCI formats 0_1, 0_2, 1_1, 1_2, and 2_3 (the higher-layer parameter srs-TPC-PDCCH-Group is set to "typeB"), the higher-layer parameter aperiodicSRS-ResourceTrigger or the higher-layer parameter aperiodicSRS-ResourceTriggerList may be configured to 1, 2, or 3.

[0080] Table 1SRS request

[0081]

[0082] When multiple UEs perform cyclic redundancy check (CRC) scrambling through the same Transmission Power Control Sounding Reference Signal Radio Network Temporary Identifier (TPC-SRS-RNTI), they can be triggered to send SRS by the DCI signaling of the same DCI format 2_3. At this time, one DCI can trigger multiple UEs to send multiple SRS. However, this triggering method is only used in a system with uplink and downlink mutual differences to obtain downlink channel information by measuring the uplink channel using SRS, and the number of uplink carriers is less than the number of downlink carriers and carrier switching is required. In other words, this triggering method can only be used for SRS resource sets with usage 'antenna switching'. For SRS resource sets with other functions, this method cannot be used to trigger multiple UEs to send at the same time.

[0083] It should be noted that, for a UE not configured with supplementary uplink, the SRS request field includes 2 bits. The values ​​of the SRS request field may be as shown in Table 1.

[0084] For UEs that have configured the supplementary uplink parameter in the serving cell parameter (ServingCellConfig), the SRS request field has 3 bits, of which the first bit is the uplink / supplementary uplink indication bit, as defined in Table 2, and the second and third bits are defined in Table 1.

[0085] Table 2 Uplink / Supplementary Uplink Indication Bits

[0086] Uplink / supplementary uplink indication bit value Upward 0 Non-supplementary uplink 1 Supplementary upside

[0087] The network device defines a slot-level offset for each SRS resource set using the high-level parameter slotOffset. Assuming that the UE receives a DCI triggering aperiodic SRS in time slot n, the UE will send SRS in the triggered aperiodic SRS resource set in the time slot shown in the following formula.

[0088]

[0089] The network device configures the number of consecutive OFDM symbols of the SRS resource and the starting symbol position of the resource in the triggered time slot through the high-level parameter resourceMapping, thereby determining the transmission position of the SRS resource in a time slot. Among them, k is configured for each SRS resource set through the high-level parameter slotOffset and is determined based on the subcarrier spacing of the triggered SRS transmission, μ SRS and μ PDCCHThe subcarrier spacing configurations for the triggered SRS and the physical downlink control channel (PDCCH) carrying the triggering command. Defined as the time slot offset between the primary cell (PCell) / primary secondary cell (PScell) A and the secondary cell (SCell) B, The higher-level parameter ca-SlotOffset configured on the carrier that sends PDCCH The higher-layer parameter ca-SlotOffset configured for the carrier sending SRS μ offset It is defined as the maximum value of the lowest subcarrier spacing configuration among all subcarrier spacings configured for each cell in the high-level parameter subcarrier spacing-specific carrier list (SCS-SpecificCarrierList) in each cell pair, μ offset,PDCCH μ configured for the higher-layer parameter ca-SlotOffset on the carrier that sends PDCCH offset , μ offset,PDCCH μ configured for the higher-layer parameter ca-SlotOffset on the carrier sending SRS offset .

[0090] For example, assume that the time slot containing only downlink symbols is defined as "D", the time slot containing only uplink symbols and flexible symbols is defined as "U", and the time slot containing downlink symbols, uplink symbols, and flexible symbols is defined as "S". Here, it is assumed that the uplink symbols and flexible symbols contained in "S" can meet the transmission requirements of all SRS resources in the aperiodic SRS resource set. When the time slot format is configured as "DDDSU", the possible triggering conditions for different high-level parameter slotOffset configurations are shown in Table 3 below:

[0091] Table 3 Non-periodic SRS triggering example

[0092] Slot offset D D D S U 1 PDCCH SRS 2 PDCCH SRS 2 PDCCH SRS 3 PDCCH SRS 3 PDCCH SRS

[0093] That is, when the slotOffset of the SRS resource set is configured to 1, the DCI containing the SRS request field that triggers the resource set can only be sent on the third "D". At this time, the above time slot n=2, k=1, and the sending position of the resource set is time slot 3, that is, "S"; when the slotOffset of the SRS resource set is configured to 2, if the DCI containing the SRS request field that triggers the resource set is sent on the second "D", the above time slot n=1, k=2, and the sending position of the resource set is time slot 3, that is, "S". If the DCI containing the SRS request field that triggers the resource set is sent on the third "D", the above time slot n=2, k=2, and the sending position of the resource set is time slot 4, that is, "U".

[0094] 3. Carrier switching

[0095] When performing carrier aggregation, a UE can typically aggregate a large number of downlink carriers, while the number of aggregated uplink carriers is relatively small. Carriers in time division duplexing (TDD) mode support both uplink and downlink transmissions. Since a UE can typically aggregate more downlink carriers than uplink carriers, it's possible for an eNB to schedule a carrier for a UE only for downlink transmissions, without scheduling uplink transmissions for the UE.

[0096] According to channel reciprocity, for some downlink channel measurements, such as the precoding matrix index (PMI), the channel reciprocity feature is used to send SRS through the UE, so that the network device obtains the downlink channel measurement about the PMI by detecting the SRS. At this time, the network device requires the UE to send some uplink information on the carrier. For example, the eNB requires the UE to send an uplink SRS on the carrier where the physical downlink shared channel (PDSCH) is to be sent to obtain the corresponding channel estimate. However, since the UE is not scheduled to perform uplink transmission on the carrier, it is unable to send SRS on the carrier, so that the network device cannot obtain the corresponding channel estimate. In this case, allowing fast carrier switching is an effective method. This method can ensure that the SRS is transmitted on these TDD carriers so that the network device obtains the channel conditions corresponding to these TDD carriers. That is, because the UE's downlink carrier aggregation capability is greater than the uplink carrier aggregation capability, the UE has no uplink transmission on some time-division duplex carriers for downlink transmission. In order to ensure the timely transmission of the SRS, carrier switching is required.

[0097] In addition, when SRS is quickly switched between carriers, in order to ensure that the network equipment on the carrier after switching can perform correct SRS detection, SRS transmission power control is required, that is, the carrier after switching only transmits SRS, and there is no PUSCH transmission. The current SRS closed-loop power control follows PUSCH power control, but in this case there is no specific PUSCH uplink authorization for such a switched carrier. Therefore, it is necessary to provide power control commands to carriers used only for SRS transmission. In addition, the target power parameters of the power control formula in the existing protocol TS38.213 need to be set. Therefore, when the UE is configured to transmit SRS on a certain carrier but is not configured to transmit PUSCH, specific high-level configuration is required, as well as a specific transmission power control command value for the corresponding carrier, that is, the function of DCI format 2_3.

[0098] 4. DCI format 2_3

[0099] DCI format 2_3 is applied to the uplink carrier of the serving cell where the UE is not configured with PUSCH or PUCCH transmission, or to the uplink carrier of the serving cell where the power control adjustment states of SRS transmission and PUSCH transmission are independent.

[0100] like Figure 2 As shown, DCI format 2_3 includes information blocks (block 1), block 2, ..., block number K, where K is a positive integer. The information blocks here are used to indicate power control information corresponding to SRS transmission, and each information block indicates power control information for one or more cells. In this application, information blocks may also be referred to as blocks.

[0101] Among them, the starting position of the information block that each UE needs to decode is configured through the starting bit of the high-level parameter format 2-3 (startingBitOfFormat2-3) or the starting bit of the supplementary uplink format 2-3 (startingBitOfFormat2-3SUL-v1530). The UE decodes the corresponding block according to this starting position to obtain the indication information.

[0102] The field configuration types of DCI format 2_3 are divided into typeA and typeB. For typeA, the network device groups the serving cells and provides the UE with a group index of a group of serving cells through the high-level parameter carrier set index (cc-SetIndex). The high-level parameter component carrier index in one component carrier set (cc-IndexInOneCC-Set) provides the UE with the index of each serving cell in this serving cell group. For the dynamic triggering mode, the network device configures an information block in DCI format 2_3 for a UE through high-level signaling. The fields in each information block contain the transmission power control (TPC) command of each serving cell in the triggered group of serving cells, and may also contain an SRS request field (as shown in Table 1). The SRS request field indicates a group of non-periodic SRS with usage configured as 'antennaSwitching' in the triggered serving cell. Each block consists of an SRS request field (0 or 2 bits), and TPC commands (TPC command 1, TPC command 2, ..., TPC command N), where each TPC command is 2 bits, N is the number of serving cells in the serving cell group, and the i-th TPC command applies to the i-th serving cell in the higher-layer parameter cc-IndexInOneCC-Set. Alternatively, each block may not include the SRS request field and only include TPC command 1, TPC command 2, ..., TPC command N.

[0103] For type B, the network device does not group the serving cells. For the dynamic triggering mode, the network device configures one or more information blocks in DCI format 2_3 for a UE through high-layer signaling. Each information block is applied to an uplink carrier. The fields in each information block contain the TPC command of a triggered serving cell, and may also contain an SRS request field (as shown in Table 1). The SRS request field indicates the AP-SRS resource set triggered on the serving cell. The composition of each block includes an SRS request field, which is 0 or 2 bits, and a TPC command, which is 2 bits. Alternatively, the composition of each block does not include the SRS request field, but only includes the TPC command.

[0104] It should be noted that the reference signals involved in the embodiments of the present application may include, but are not limited to, a channel state information reference signal (CSI-RS), a synchronization signal broadcast channel block (synchronous signal / PBCH block, SSB), a sounding reference signal (SRS), etc. Among them, a tracking reference signal (TRS) is also a type of CSI-RS.

[0105] Alternatively, the reference signal involved in the embodiments of the present application may also be a reference signal in a future mobile communication system, and this application does not limit this. The following example only uses the reference signal as an SRS as an example for explanation. The first communication device involved in the embodiments of the present application may be a terminal device or a chip within the terminal device. The following description only uses the first communication device as a terminal device. The second communication device may be a network device or a chip within the network device. The following description only uses the second communication device as a network device as an example.

[0106] Based on this, in order to improve the flexibility of SRS scheduling, the embodiment of the present application provides a communication method, such as Figure 3 As shown, the method includes:

[0107] S301: The network device sends first information and first DCI to the first terminal device.

[0108] For example, the network device may first send the first information to the first terminal device and then send the first DCI, or may send the first information and the first DCI together. The first DCI may be obtained by the first terminal device through blind detection in the public search area.

[0109] Wherein, the first DCI includes an information block corresponding to at least one terminal device, and at least one terminal device includes the first terminal device. Exemplarily, the network device divides multiple terminal devices in the cell into M groups, and configures a unique radio network temporary identifier (Radio-Network temporary identifier, RNTI) for each group, for example, TPC-SRS-RNTI, each group has S terminal devices, and the corresponding numbers are {1, 2,…, S}. Wherein, it should be noted that the number of terminal devices in each group may also be different. Wherein, the above-mentioned at least one terminal device can be understood as a group of terminal devices in the M group. The network device configures a unique RNTI for the group of terminal devices. When the network device transmits the first DCI on the PDCCH channel, the first DCI is scrambled by the unique RNTI. The above-mentioned at least one terminal device can obtain the first DCI through blind detection in the common search area.

[0110] Exemplarily, the format of the first DCI may be DCI format 2_3.

[0111] The first information is configured by the first high-level configuration information. Exemplarily, the first high-level configuration information here can be radio resource control (RRC) signaling or MAC CE signaling. The first information is used to determine the relevant information of the information block corresponding to the first terminal device in the first DCI, and whether the information block corresponding to the first terminal device includes the second information and the third information (it can also be said that the first information is used to determine the second information and / or third information included in the information block corresponding to the first terminal device; that is, if the first information indicates the second information or the third information, then it is equivalent to indicating that the information block does not include the second information and the third information; if the first information does not indicate the second information or the third information, then it is equivalent to indicating that the information block does not include the second information and the third information; if the first information indicates the second information and the third information, then it is equivalent to indicating that the information block includes the second information and the third information). The possible design of the first information will be introduced below. Therefore, the first terminal device can determine the relevant information of the information block corresponding to the first terminal device in the first DCI based on the first information, and judge whether the information block corresponding to the first terminal device includes the second information and the third information based on the first information, or it can be said that the second information and / or third information included in the information block corresponding to the first terminal device is determined based on the first information.

[0112] For example:

[0113] The first DCI includes at least one information block, and the information block corresponding to the first terminal device includes second information and / or third information. Exemplarily, the second information includes a group of fields, and the third information includes a group of fields.

[0114] The second information is used to determine relevant information about the first reference signal, and the third information is used to determine relevant information about the second reference signal. The first reference signal is associated with the first configuration information, and the second reference signal is associated with the second configuration information. The first configuration information is different from the second configuration information. The first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching. Optionally, the first configuration information includes parameters for carrier switching, and the second configuration information does not include parameters for carrier switching, or the second configuration information includes parameters for non-carrier switching.

[0115] Exemplarily, the first configuration information includes parameters for carrier switching, and the second configuration information includes parameters for non-carrier switching. For example, the second configuration information includes configuration parameters whose usage is codebook, or configuration parameters whose usage is nonCodebook, or configuration parameters whose usage is beamManagement, or configuration parameters whose usage is antennaSwitching except for those applied to carrier switching. Therefore, compared with the current DCI format 2_3 which is only applied to carrier switching scenarios, DCI format 2_3 can only trigger SRS resource sets with usage as "antennaSwitching". The method provided in the embodiment of the present application can realize DCI format 2_3 for triggering SRS resource sets of other usages (for example, codebook, or nonCodebook, or beamManagement), as well as triggering SRS resource sets with usage as "antennaSwitching" in non-carrier switching scenarios. Therefore, it is possible to trigger multiple UEs to send multiple SRSs at the same time. It is understandable that the above method can also realize one UE sending one SRS, or one UE sending multiple SRSs.

[0116] In some embodiments, when the format of the first DCI is DCI format 2_3 and the field configuration type of DCI format 2_3 can be typeA, the second information may include an SRS request field, and / or a TPC command number (TPC command number) 1, TPC command number 2, ..., TPC command number N, where N is the number of serving cells included in the serving cell group, and the i-th TPC command is applied to the i-th serving cell in the high-layer parameter cc-IndexInOneCC-Set. When the format of the first DCI is DCI format 2_3 and the field configuration type of DCI format 2_3 can be typeB, the second information may include an SRS request field and / or a TPC command. The SRS request field occupies 2 bits, and each TPC command occupies 2 bits.

[0117] In some embodiments, the third information may include at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication (BWP), relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication.

[0118] Exemplarily, the third information may include relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication. Alternatively, the third information may include relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication.

[0119] The relevant information for requesting a reference signal is used to trigger the second reference signal resource set. The relevant information for requesting a reference signal may occupy 0 bits or 2 bits. For example, the relevant information for requesting a reference signal may refer to an SRS request field.

[0120] The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located. Exemplarily, the number of carriers indicated by the relevant information for carrier indication may be 1 or more. In some possible implementations, the relevant information for carrier indication may occupy 0 bits, 3 bits, or 6 bits. Among them, if the network device does not configure cross-carrier scheduling for the first terminal device, the relevant information for carrier indication is 0 bits; if the network device configures cross-carrier scheduling for the first terminal device and indicates single-carrier transmission, the relevant information for carrier indication is 3 bits; if the network device configures cross-carrier scheduling for the first terminal device and indicates multi-carrier transmission, the relevant information for carrier indication is 6 bits.

[0121] The relevant information for partial bandwidth indication is used to indicate the partial bandwidth corresponding to the second reference signal. The relevant information for partial bandwidth indication can occupy 0 bits, 1 bit, or 2 bits, and the specific size of the relevant information for partial bandwidth indication can be determined according to the number of BWPs configured by the higher-layer parameters.

[0122] The relevant information for port indication is used to indicate the number of ports corresponding to the second reference signal or the port sequence number corresponding to the second reference signal, or the preset port group sequence number corresponding to the second reference signal, or the switching of the number of ports corresponding to the second reference signal.

[0123] Exemplarily, when the relevant information for port indication is 2 bits, the relevant information for port indication is used to indicate the number of ports of the second reference signal; when the relevant information for port indication is 1 bit, the relevant information for port indication is used to indicate a switch in the number of ports of the second reference signal; when the relevant information for port indication is 4 bits, the relevant information for port indication is used to indicate the port (group) sequence number of the second reference signal. It should be understood that the bit numbers of 2, 1, and 4 are merely examples and other bit numbers may also be used.

[0124] In one example, when the relevant information for port indication indicates the number of ports as M, where M is a positive integer, the first terminal device may determine that the number of ports for transmitting the second reference signal is M, and select M ports from all ports to transmit the second reference signal. In one example, when the relevant information for port indication indicates a port sequence number, the first terminal device may determine the port for transmitting the second reference signal based on the indicated port sequence number, and transmit the second reference signal based on the determined port. In one example, the first terminal device or the network device may group the ports included in the first terminal device in advance based on a high-level parameter configuration or a predefined rule, and determine the sequence number of each port group. When the relevant information for port indication indicates a port group sequence number, the first terminal device may determine the port group for transmitting the second reference signal based on the indicated preset port group sequence number, and transmit the second reference signal based on the determined port group. In one example, the network device may configure two sets of parameters for the first terminal device using high-level parameters, for example, including a first set of parameters and a second set of parameters, the two sets of parameters corresponding to two different numbers of ports, respectively, and instruct the first terminal device, using the high-level parameters or predefined rules, to determine the port for transmitting the second reference signal according to one of the sets of parameters (using the first set of parameters as an example) by default. When the relevant information for port indication indicates switching of the number of ports, the first terminal device determines that port switching is required and determines the port for sending the second reference signal according to another set of parameters (taking the second set of parameters as an example).

[0125] The relevant information used for TPC command indication is used to indicate power control information of the second reference signal. The relevant information used for TPC command indication may occupy 2 bits.

[0126] The relevant information for the time slot offset indication is used to determine the time unit corresponding to the second reference signal. Exemplarily, the relevant information for the time slot offset indication may occupy 2 bits or 3 bits, and the specific size of the relevant information for the time slot offset indication may be determined according to a high-level parameter configuration or a predefined rule.

[0127] S302: The first terminal device determines the second information and / or third information in the first DCI based on the first information.

[0128] The following describes the possible designs of the first information and the first DCI with reference to specific examples, and describes the specific process of the first terminal device determining the second information and / or third information in the first DCI based on the first information with reference to the corresponding designs. It is understood that the following examples are not intended to limit the embodiments of the present application. It should be understood that the starting position described below may refer to the starting bit position.

[0129] Exemplarily, when the information block corresponding to the first communication device includes the second information and the third information, the first information is used to determine the starting position of the second information and the starting position of the third information, such as Example 1.

[0130] Exemplarily, the information block corresponding to the first communication device includes the second information and / or the third information. The first information is used to determine at least one of the starting position of the information block corresponding to the first communication device, the first indication information and the second indication information, the length of the second information, the fourth indication information, and the fifth indication information. The first indication information is used to determine whether the information block corresponding to the first communication device includes the second information. The second indication information is used to determine whether the information block corresponding to the first communication device includes the third information. The fourth indication information is used to indicate the starting position of the third information. The fifth indication information is used to indicate the starting position of the second information. For example, Examples 2 to 7.

[0131] Example 1: The first information indicates the starting position of at least one first information block and the starting position of at least one second information block in the first DCI. In the first DCI, the second information and the third information are located in different information blocks. In this case, the information block corresponding to the first terminal device includes at least one first information block and at least one second information block, the first information block includes the second information, and the second information block includes the third information. There are no overlapping information blocks between the at least one first information block and the at least one second information block.

[0132] As can be seen from the above, when the first information indicates the starting position of at least one first information block but does not indicate the starting position of at least one second information block, it indicates that the information block corresponding to the first terminal device includes the second information but does not include the third information, and the first information indicates the starting position of at least one first information block. The first terminal device can determine the second information based on the starting position of the at least one first information block. When the first information indicates the starting position of at least one second information block but does not indicate the starting position of at least one first information block, it indicates that the information block corresponding to the first terminal device includes the third information but does not include the second information, and indicates the starting position of at least one second information block. The first terminal device can determine the third information based on the starting position of the at least one second information block. When the first information indicates the starting position of at least one first information block and the starting position of at least one second information block, it indicates that the information block corresponding to the first terminal device includes the second information and the third information, and indicates the starting position of at least one first information block and the starting position of at least one second information block. The first terminal device can determine the second information based on the starting position of the at least one first information block and the third information based on the starting position of the at least one second information block.

[0133] For example, the network device indicates the starting position of at least one first information block to the first terminal device through the high-level parameter startingBitOfFormat2-3, and indicates the starting position of at least one second information block to the first terminal device through the high-level parameter startingBitOfFormat2-3-r17. The specific position of the first information block and the specific position of the second information block can be as follows: Figure 4 As shown, it may also be in other forms, for example, a plurality of first information blocks and a plurality of second information blocks are arranged alternately.

[0134] Using the solution provided in Example 1 above, the first DCI can trigger multiple UEs to transmit reference signals for different configurations at once, further reducing PDCCH signaling overhead. At the same time, the transmission scheduling of aperiodic reference signals is decoupled from data scheduling, making the configuration of reference signals more independent and flexible, thereby increasing system scheduling flexibility. Furthermore, the first DCI is highly compatible with existing DCI formats in the protocol, saving signaling overhead, improving resource utilization, and reducing processing complexity for network and terminal devices.

[0135] For example, the method provided in the embodiment of the present application can realize the triggering of SRS resource sets for other usages (for example, codebook, non-Codebook, or beamManagement) using DCI format 2_3, as well as the triggering of SRS resource sets with usage as "antennaSwitching" in non-carrier switching scenarios, thereby saving PDCCH signaling overhead. At the same time, the transmission scheduling of non-periodic SRS is decoupled from data scheduling, making the configuration of SRS more independent and flexible, thereby increasing the flexibility of system scheduling.

[0136] Example 2: The first information indicates the starting position of the information block corresponding to the first terminal device, the first indication information, and the second indication information. The first indication information is used to determine whether the information block corresponding to the first terminal device includes the second information; the second indication information is used to determine whether the information block corresponding to the first terminal device includes the third information. In the first DCI, the second information and the third information can be located in the same information block, and other information can be inserted between the second information and the third information, or no other information can be inserted, that is, the second information and the third information can be continuous or discontinuous, such as Figure 5 As shown in , the second information and the third information are continuous. Figure 5As shown, the first DCI includes the information block corresponding to terminal device 1 to the information block corresponding to terminal device N. Taking the information block corresponding to terminal device 1 as an example, the information block corresponding to terminal device 1 includes the second information and the third information, the second information and the third information are in the same information block, and the second information and the third information are continuous, and the second information and the third information are not inserted into other information.

[0137] From the above, it can be seen that when the first indication information determines that the information block corresponding to the first terminal device includes the second information, and the second indication information determines that the information block corresponding to the first terminal device does not include the third information, it indicates that the information block corresponding to the first terminal device includes the second information but does not include the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and determine the length of the second information according to the first preset rule and / or the second high-level configuration information.

[0138] When it is determined based on the first indication information that the information block corresponding to the first terminal device does not include the second information, and it is determined based on the second indication information that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device does not include the second information but includes the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the third information, and determine the length of the third information according to the second preset rule and / or the third high-level configuration information.

[0139] When it is determined based on the first indication information that the information block corresponding to the first terminal device includes the second information, and based on the second indication information that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first information indicates the starting position of the information block corresponding to the first terminal device, wherein, in some embodiments, the protocol can pre-determine or the network device can pre-configure the order of the second information and the third information, for example, pre-determining the second information to be in front and the third information to be in the back. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and determine the length of the second information according to the first preset rule and / or the second high-level configuration information, and at the same time obtain the starting position of the third information according to the starting position of the second information and the length of the second information, and determine the length of the third information according to the second preset rule and / or the third high-level configuration information. In addition, it can also be agreed that the second information is in the back and the third information is in the front. The specific implementation method is similar and will not be repeated here.

[0140] It should be understood that the first preset rule and the second preset rule in the present application are only for distinguishing the rules corresponding to the second information and the third information. In different implementation methods, the first preset rule or the second preset rule may be different rules. Similarly, the second high-level signaling and the third high-level signaling are also only for distinguishing the signaling corresponding to the second information and the third information. The first preset rule and the second preset rule are defined by the protocol. The second high-level configuration information and the third high-level configuration are information configured for the network device. For example, the protocol defines that the second information may include a types of fields and the possible length values ​​of each field, where the possible length of the j-th field is b. j The second high-level configuration information specifically indicates that the current second information includes c types of fields in a types of fields, and a specific value of the length of each field in the c types of fields.

[0141] In some embodiments, if the information block corresponding to the first terminal device includes the second information and the third information, the second information and the third information may be arranged alternately, and the protocol or network device may pre-configure the order of arrangement of the sub-information in the second information and the sub-information in the third information. For example, if the second information includes n1+n2 sub-information (also referred to as fields), and the third information includes n3+n4 sub-information, the order of arrangement of the second information and the third information is: n1 sub-information in the second information, n3 sub-information in the third information, n2 sub-information in the second information, and n4 sub-information in the third information.

[0142] Exemplarily, the first terminal device can determine which fields the second information specifically includes and the length of each field based on the first preset rule and the second high-level configuration information to determine the length of the second information. For example, for typeA, the high-level parameters are used to indicate whether the second information includes the SRS request field. If included, the length of the SRS request field is 2 bits, and if not included, it is 0 bits. The high-level parameters are also used to indicate that the second information includes N TPC commands, where N is the number of uplink carriers indicated by the high-level parameters, and the length of each TPC command field is 2 bits. Therefore, if the second information includes the SRS request field, the length of the second information is 2N+2 bits, otherwise it is 2N bits. For example, for typeB, if the information block includes the SRSrequest field and 1 TPC command, the length of the second information in the information block is 4 bits. If the information block includes only 1 TPC command, the length of the second information in the information block is 2 bits.

[0143] Exemplarily, the first terminal device can determine which fields the third information specifically includes according to the second preset rule and the third high-level configuration information, and the high-level parameters determine the length of each field and the length of the third information. For example, for typeB, the third information indicated by the high-level parameters includes an SRS request field (2 bits), a carrier indication field (6 bits), a partial bandwidth indication field (2 bits), a port indication field (1 bit), a TPC command field (2 bits), and a time slot offset indication field (2 bits). The length of the third information is 2+6+2+1+2+2=15 bits. It will be understood that the lengths of the above-mentioned fields are only examples and are not intended to be limiting of the embodiments of the present application.

[0144] Exemplarily, the network device indicates the starting position of the corresponding information block to the first terminal device through the high-level parameter startingBitOfFormat2-3, and indicates the starting position of the information block corresponding to the first terminal device, as well as the corresponding first indication information and second indication information through the high-level parameter startingBitOfFormat2-3-r17.

[0145] Similar to Example 1, using the solution provided in Example 2, the first DCI can trigger multiple UEs to send reference signals for different configurations at once, further reducing PDCCH signaling overhead. At the same time, the transmission scheduling of aperiodic reference signals is decoupled from data scheduling, making the configuration of reference signals more independent and flexible, thereby increasing system scheduling flexibility. Furthermore, the first DCI can be highly compatible with existing DCI formats in the protocol, saving signaling overhead, improving resource utilization, and reducing processing complexity for network and terminal devices.

[0146] By indicating the starting position of the information block corresponding to the first terminal device, whether it includes the second information, and whether it includes the third information, the first terminal device can determine the second information and / or third information and its starting bit position, thereby reducing signaling overhead.

[0147] Example 3: The first information indicates the starting position of the information block corresponding to the first terminal device, the length of the second information and the third indication information, and the third indication information is used to determine whether the information block corresponding to the first terminal device includes the third information. In the first DCI, the second information and the third information can be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, such as Figure 5 shown.

[0148] From the above, it can be seen that when the length of the second information is not 0 and the third indication information determines that the information block corresponding to the first terminal device does not include the third information, it indicates that the information block corresponding to the first terminal device includes the second information but does not include the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information.

[0149] When the length of the second information is 0 and the third indication information determines that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device does not include the second information but includes the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the third information.

[0150] When the length of the second information is not 0, and the third indication information determines that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first information indicates the starting position of the information block corresponding to the first terminal device, wherein the protocol can pre-determine or the network device can pre-configure the order of the second information and the third information, for example, the second information is predetermined to be in front and the third information is predetermined to be in the back. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and obtain the starting position of the third information based on the starting position of the second information and the length of the second information, and determine the length of the third information based on the second preset rule and / or the third high-level configuration information. In addition, it can also be agreed that the second information is in the back and the third information is in the front. The specific implementation method is similar and will not be repeated here.

[0151] The second preset rule and the third high-level configuration information may refer to the relevant description in Example 2, and the repeated parts will be omitted.

[0152] Similar to Example 1, using the solution provided in Example 3, the first DCI can trigger multiple UEs to send reference signals for different configurations at once, further reducing PDCCH signaling overhead. At the same time, the transmission scheduling of the aperiodic reference signal is decoupled from data scheduling, making the configuration of the reference signal more independent and flexible, thereby increasing the flexibility of system scheduling. Furthermore, the first DCI can be highly compatible with the existing DCI format in the protocol, saving signaling overhead, improving resource utilization, and reducing the processing complexity of network and terminal devices.

[0153] By indicating the starting position of the information block corresponding to the first terminal device, whether the third information is included, and indicating the length of the second information, the first terminal device can determine the second information and / or the third information, thereby reducing signaling overhead.

[0154] Example 4: The first information indicates the starting position of the information block corresponding to the first terminal device and the length of the second information. The protocol can pre-agree on the existence of third information (it should be understood that the first information indicates the starting position of the information block corresponding to the first terminal device and the length of the third information, and the protocol can pre-agree on the existence of the second information, which is similar to Example 4). In the first DCI, the second information and the third information can be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, such as Figure 5 shown.

[0155] From the above, it can be seen that when the length of the second information is 0, it indicates that the information block corresponding to the first terminal device does not include the second information, but includes the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the third information.

[0156] When the length of the second information is not 0, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first information indicates the starting position of the information block corresponding to the first terminal device, wherein the protocol can pre-determine or the network device can pre-determine the order of the second information and the third information, for example, the second information is predetermined to be in front and the third information is predetermined to be in the back. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and obtain the starting position of the third information based on the starting position of the second information and the length of the second information, and determine the length of the third information according to the second preset rule and / or the third high-level configuration information. In addition, it can also be agreed that the second information is in the back and the third information is in the front. The specific implementation method is similar and will not be repeated here.

[0157] The second preset rule and the third high-level configuration information may refer to the relevant description in Example 2, and the repeated parts will be omitted.

[0158] Similar to Example 1, using the solution provided in Example 4, the first DCI can trigger multiple UEs to send reference signals for different configurations at once, further reducing PDCCH signaling overhead. At the same time, the transmission scheduling of aperiodic reference signals is decoupled from data scheduling, making the configuration of reference signals more independent and flexible, thereby increasing system scheduling flexibility. Furthermore, the first DCI can be highly compatible with existing DCI formats in the protocol, saving signaling overhead, improving resource utilization, and reducing processing complexity for network and terminal devices.

[0159] By indicating the starting position of the information block corresponding to the first terminal device and the length of the second information, the first terminal device can determine the second information and / or the third information, thereby reducing signaling overhead.

[0160] Example 5: The first information indicates the starting position of the information block corresponding to the first terminal device, and the fourth indication information. The fourth indication information indicates the starting position of the third information. In the first DCI, the second information and the third information can be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, such as Figure 5 If the fourth indication information indicates that the device is not configured, or the fourth indication information indicates that the device is configured as a preset value, the information block corresponding to the first terminal device does not include the third information.

[0161] As can be seen from the above, when the starting position of the information block corresponding to the first terminal device is the same as the starting position of the third information indicated by the fourth indication information, it indicates that the information block corresponding to the first terminal device does not include the second information but includes the third information. The first terminal device can determine the starting position of the third information and determine the length of the third information based on the second preset rule and / or the third high-level configuration information. The second preset rule and the third high-level configuration information can be referred to the relevant description in Example 2, and the repeated parts are not repeated here.

[0162] If the starting position of the information block corresponding to the first terminal device is different from the starting position of the third information indicated by the fourth indication information, and the value of the fourth indication information is not a preset value, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information. In this case, the second information is located before the third information.

[0163] When the value of the fourth indication information is a preset value or when the network device is not configured with the fourth indication information, it indicates that the information block corresponding to the first terminal device includes the second information but does not include the third information. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information and determine the length of the second information based on the first preset rule and / or the second high-level configuration information. The first preset rule and the second high-level configuration information can refer to the relevant descriptions in Example 2, and the repeated parts are not repeated here.

[0164] Similar to Example 1, using the solution provided in Example 5, the first DCI can trigger multiple UEs to send reference signals for different configurations at once, further saving PDCCH signaling overhead. At the same time, the transmission scheduling of the aperiodic reference signal is decoupled from the data scheduling, making the configuration of the reference signal more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can be highly compatible with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce the processing complexity of network equipment and terminal devices.

[0165] By indicating the starting position of the information block corresponding to the first terminal device and the starting position of the third information, the first terminal device can determine the second information and / or the third information, thereby reducing signaling overhead.

[0166] Example 6: The first information indicates the starting position of the information block corresponding to the first terminal device, and the fifth indication information is used to indicate the starting position of the second information. In the first DCI, the second information and the third information can be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, such as Figure 5 If the fifth indication information indicates that the device is not configured, or the fifth indication information indicates that the device is configured as a preset value, the information block corresponding to the first terminal device does not include the second information.

[0167] As can be seen from the above, when the starting position of the information block corresponding to the first terminal device is the same as the starting position of the second information indicated by the fifth indication information, it indicates that the information block corresponding to the first terminal device does not include the third information but includes the second information. The first terminal device can determine the starting position of the second information and determine the length of the second information based on the first preset rule and / or the second high-level configuration information. The first preset rule and the second high-level configuration information can refer to the relevant description in Example 2, and the repeated parts are not repeated here.

[0168] If the starting position of the information block corresponding to the first terminal device is different from the starting position of the second information indicated by the fifth indication information, and the value of the fifth indication information is not a preset value, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the third information. In this case, the third information is located before the second information.

[0169] When the value of the fifth indication information is a preset value or when the network device is not configured with the fifth indication information, it indicates that the information block corresponding to the first terminal device includes the third information but does not include the second information. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the third information and determine the length of the third information based on the second preset rule and / or the third high-level configuration information. The second preset rule and the third high-level configuration information can be referred to in Example 2, and any repetitions are not repeated here.

[0170] Similar to Example 1, using the solution provided in Example 6, the first DCI can trigger multiple UEs to send reference signals for different configurations at once, further saving PDCCH signaling overhead. At the same time, the transmission scheduling of the aperiodic reference signal is decoupled from the data scheduling, making the configuration of the reference signal more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can be highly compatible with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce the processing complexity of network equipment and terminal devices.

[0171] By indicating the starting position of the information block corresponding to the first terminal device and the starting position of the second information, the first terminal device can determine the second information and / or the third information, thereby reducing signaling overhead.

[0172] Example 7: The first information indicates the starting position of the information block corresponding to the first terminal device, and the sixth indication information is used to determine whether the information block corresponding to the first terminal device includes the second information. The protocol may pre-agreed that there is a third information. In the first DCI, the second information and the third information may be located in the same information block, such as Figure 5 shown.

[0173] As can be seen from the above, when the sixth indication information determines that the information block corresponding to the first terminal device does not include the second information, it indicates that the information block corresponding to the first terminal device includes the third information but does not include the second information. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the third information and determine the length of the third information based on the second preset rule and / or the third high-level configuration information.

[0174] When the sixth indication information determines that the information block corresponding to the first terminal device includes the second information, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. Among them, the protocol can pre-specify or the network device can pre-determine the order of the second information and the third information, for example, pre-determine the second information in front and the third information in the back, and the first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and determine the length of the second information according to the first preset rule and / or the second high-level configuration information. The first terminal device can obtain the starting position of the third information based on the starting position of the second information and the length of the second information, and determine the length of the third information according to the second preset rule and / or the third high-level configuration information. In addition, it can also be agreed that the second information comes last and the third information comes first. The specific implementation method is similar and will not be repeated here.

[0175] Among them, the first preset rule, the second high-level configuration information, the third preset rule and the third high-level configuration information can refer to the relevant description in Example 2, and the repeated parts are not repeated here.

[0176] In some embodiments, if the information block corresponding to the first terminal device includes the second information and the third information, the second information and the third information can also be arranged crosswise, and the protocol or network device can configure the arrangement order of the sub-information in the second information and the sub-information in the third information in advance.

[0177] Similar to Example 1, using the solution provided in Example 7, the first DCI can trigger multiple UEs to send reference signals for different configurations at once, further saving PDCCH signaling overhead. At the same time, the transmission scheduling of the aperiodic reference signal is decoupled from the data scheduling, making the configuration of the reference signal more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can be highly compatible with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce the processing complexity of network equipment and terminal devices.

[0178] By indicating the starting position of the information block corresponding to the first terminal device and whether the second information is included, the first terminal device can determine the second information and / or third information, thereby reducing signaling overhead.

[0179] It should be understood that in the present application, the second information and the third information may be continuous or may have intervals, and the length of the interval may be determined according to preset rules and / or network-side signaling configuration.

[0180] It should also be understood that in this application, the first information indicates the Xth indication information, which can be understood as the first information indicating whether there is the Xth indication information, or it can be understood as the first indication information indicating the content of the Xth indication information, and the first information includes the Xth indication information.

[0181] Further, after step 302, when the information block corresponding to the first terminal device includes second information and third information, the first reference signal is determined according to the second information, and the second reference signal is determined according to the third information; and the first reference signal and the second reference signal are sent.

[0182] Alternatively, when the information block corresponding to the first terminal device includes second information, the first reference signal is determined according to the second information and the first reference signal is sent.

[0183] Alternatively, when the information block corresponding to the first terminal device includes third information, a second reference signal is determined based on the third information; and the second reference signal is sent.

[0184] It is understood that in order to implement the functions in the above embodiments, the network devices and terminal devices include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a manner driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0185] Figure 6 and Figure 7 Schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows Figure 1 The terminal device 130 or the terminal device 140 shown may also be Figure 1 The wireless access network device 120 shown may also be a module (such as a chip) applied to a terminal device or a network device.

[0186] like Figure 6 As shown, the communication device 600 includes a processing unit 610 and a transceiver unit 620. The communication device 600 is used to implement the above Figure 3 The functions of the terminal device or network device in the method embodiment shown in FIG.

[0187] When the communication device 600 is used to implement Figure 3 The functions of the terminal device in the method embodiment shown are as follows: the transceiver unit 620 is used to obtain first information and first downlink control information DCI; the first information is configured by first high-level configuration information; the first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes the first communication device; the first information is used to determine the relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to determine the relevant information of the first reference signal, and the first reference signal is associated with the first configuration information; the third information is used to determine the relevant information of the second reference signal, and the second reference signal is associated with the second configuration information; the first configuration information is different from the second configuration information; the processing unit 610 is used to determine the second information and / or the third information in the first DCI based on the first information.

[0188] When the communication device 600 is used to implement Figure 3The functions of the network device in the method embodiment shown are as follows: the processing unit 610 is used to generate a first DCI and a first information; the first information is configured by first high-level configuration information; the first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes the first communication device; the first information is used to determine the relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to determine the relevant information of the first reference signal, and the first reference signal is associated with the first configuration information; the third information is used to determine the relevant information of the second reference signal, and the second reference signal is associated with the second configuration information; the first configuration information is different from the second configuration information; the transceiver unit 620 is used to send the first information and the first DCI.

[0189] For more detailed description of the processing unit 610 and the transceiver unit 620, please refer to Figure 3 The relevant description in the method embodiment shown is directly obtained and will not be repeated here.

[0190] like Figure 7 As shown, communication device 700 includes a processor 710 and an interface circuit 720. Processor 710 and interface circuit 720 are coupled to each other. It is understood that interface circuit 720 can be a transceiver or an input / output interface. Optionally, communication device 700 may also include a memory 730 for storing instructions executed by processor 710, input data required by processor 710 to execute instructions, or data generated after processor 710 executes instructions.

[0191] When the communication device 700 is used to implement Figure 3 When the method is shown, the processor 710 is used to implement the functions of the processing unit 610, and the interface circuit 720 is used to implement the functions of the transceiver unit 620.

[0192] When the communication device is a chip used in a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device.

[0193] When the communication device is a chip used in a network device, the network device chip implements the network device functions of the above method embodiments. The network device chip receives information from other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device.

[0194] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0195] The method steps in the embodiments of the present application can be implemented by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and storage medium can also exist as discrete components in a network device or a terminal device.

[0196] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is performed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired or wireless means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a digital video disc (DVD); it can also be a semiconductor medium, such as a solid state drive (SSD).

[0197] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0198] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formulas of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0199] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that: The method includes: The first communication device obtains the first information and the first downlink control information DCI; The first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes the first communication device; The first information is used to determine relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; The second information is used to determine relevant information of a first reference signal, where the first reference signal is associated with the first configuration information; The third information is used to determine relevant information of a second reference signal, where the second reference signal is associated with the second configuration information; The first configuration information is different from the second configuration information; The second information and / or the third information is determined in the first DCI according to the first information.

2. The method according to claim 1, wherein The information block corresponding to the first communication device includes the second information and the third information; The method further comprises: Determining relevant information of the first reference signal according to the second information; and determining relevant information of the second reference signal according to the third information; The first reference signal and the second reference signal are transmitted.

3. The method according to claim 1, wherein The information block corresponding to the first communication device includes the third information; The method further comprises: determining relevant information of the second reference signal according to the third information; The second reference signal is sent.

4. The method according to any one of claims 1 to 3, wherein The third information includes at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication; The relevant information for requesting a reference signal is used to trigger a second reference signal resource set; The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located; The relevant information for partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; The relevant information for port indication is used to indicate the number of ports of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the switching of the number of ports of the second reference signal.

5. The method according to any one of claims 1 to 3, wherein The information block corresponding to the first communication device includes second information and third information; The first information is used to determine a starting position of the second information and a starting position of the third information.

6. The method according to any one of claims 1 to 3, wherein: The first information is used to determine the starting position of the information block corresponding to the first communication device, the first indication information, and the second indication information; The first indication information is used to determine whether the information block corresponding to the first communication device includes the second information; The second indication information is used to determine whether the information block corresponding to the first communication device includes the third information.

7. The method according to any one of claims 1 to 3, wherein: The first information is used to determine the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information; The third indication information is used to determine whether the information block corresponding to the first communication device includes the third information.

8. The method according to any one of claims 1 to 3, wherein: The first information is used to determine a starting position of an information block corresponding to the first communication device and a length of the second information.

9. The method according to any one of claims 1 to 3, wherein: The first information is used to determine a starting position of an information block corresponding to the first communication device and fourth indication information, and the fourth indication information is used to indicate a starting position of the third information.

10. The method according to any one of claims 1 to 3, wherein The first information is used to determine a starting position of an information block corresponding to the first communication device and fifth indication information, and the fifth indication information is used to indicate a starting position of the second information.

11. The method according to any one of claims 1 to 3, wherein: The first information is used to determine a starting position of an information block corresponding to the first communication device and sixth indication information, and the sixth indication information is used to determine whether the information block corresponding to the first communication device includes the second information.

12. The method according to any one of claims 1 to 3, wherein: The first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

13. A communication method, characterized in that: The method includes: The second communication device generates the first DCI and the first information; The first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes a first communication device; The first information is used to indicate relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; The second information is used to indicate relevant information of a first reference signal, where the first reference signal is associated with the first configuration information; The third information is used to indicate relevant information of a second reference signal, where the second reference signal is associated with the second configuration information; The first configuration information is different from the second configuration information; Send the first information and the first DCI.

14. The method according to claim 13, wherein The information block corresponding to the first communication device includes the second information and the third information; The method further comprises: The first reference signal and the second reference signal are received.

15. The method according to claim 13, wherein The information block corresponding to the first communication device includes the third information; The method further comprises: The second reference signal is received.

16. The method according to any one of claims 13 to 15, wherein: The third information includes at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication; The relevant information for requesting a reference signal is used to trigger a second reference signal resource set; The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located; The relevant information for partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; The relevant information for port indication is used to indicate the number of ports of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the switching of the number of ports of the second reference signal.

17. The method according to any one of claims 13 to 15, wherein: The information block corresponding to the first communication device includes second information and third information; The first information is used to indicate a starting position of the second information and a starting position of the third information.

18. The method according to any one of claims 13 to 15, wherein: The first information is used to indicate the starting position of the information block corresponding to the first communication device, the first indication information, and the second indication information; The first indication information is used to indicate whether the information block corresponding to the first communication device includes the second information; The second indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

19. The method according to any one of claims 13 to 15, wherein: The first information is used to indicate the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information; The third indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

20. The method according to any one of claims 13 to 15, wherein: The first information is used to indicate a starting position of an information block corresponding to the first communication device and a length of the second information.

21. The method according to any one of claims 13 to 15, wherein: The first information is used to indicate a starting position of an information block corresponding to the first communication device and fourth indication information, and the fourth indication information is used to indicate a starting position of the third information.

22. The method according to any one of claims 13 to 15, wherein: The first information is used to indicate a starting position of an information block corresponding to the first communication device and fifth indication information, and the fifth indication information is used to indicate a starting position of the second information.

23. The method according to any one of claims 13 to 15, wherein: The first information is used to indicate a starting position of an information block corresponding to the first communication device and sixth indication information, and the sixth indication information is used to indicate whether the information block corresponding to the first communication device includes the second information.

24. The method according to any one of claims 13 to 15, wherein: The first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

25. A communication device, characterized in that: The device includes: a transceiver unit, configured to obtain first information and first downlink control information (DCI); the first DCI includes information blocks corresponding to at least one communication device, the at least one communication device including the device; the first information is used to determine relevant information of the information block corresponding to the device in the first DCI, and whether the information block corresponding to the device includes second information and third information; the second information is used to determine relevant information of a first reference signal, the first reference signal being associated with first configuration information; the third information is used to determine relevant information of a second reference signal, the second reference signal being associated with second configuration information; the first configuration information is different from the second configuration information; A processing unit is configured to determine the second information and / or the third information in the first DCI based on the first information.

26. The device according to claim 25, characterized in that The information block corresponding to the device includes the second information and the third information; The processing unit is further configured to: determine relevant information of the first reference signal based on the second information; and determine relevant information of the second reference signal based on the third information; The transceiver unit is further configured to send the first reference signal and the second reference signal.

27. The device according to claim 25, wherein The information block corresponding to the device includes the third information; The processing unit is further configured to: determine relevant information of the second reference signal according to the third information; The transceiver unit is further configured to send the second reference signal.

28. The device according to any one of claims 25 to 27, characterized in that The third information includes at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication; The relevant information for requesting a reference signal is used to trigger a second reference signal resource set; The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located; The relevant information for partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; The relevant information for port indication is used to indicate the number of ports of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the switching of the number of ports of the second reference signal.

29. The device according to any one of claims 25 to 27, characterized in that The information block corresponding to the device includes second information and third information; the first information is used to determine the starting position of the second information and the starting position of the third information.

30. The device according to any one of claims 25 to 27, characterized in that The first information is used to determine the starting position, first indication information and second indication information of the information block corresponding to the device; the first indication information is used to determine whether the information block corresponding to the device includes the second information; the second indication information is used to determine whether the information block corresponding to the device includes the third information.

31. The device according to any one of claims 25 to 27, characterized in that The first information is used to determine the starting position of the information block corresponding to the device, the length of the second information and the third indication information; the third indication information is used to determine whether the information block corresponding to the device includes the third information.

32. The device according to any one of claims 25 to 27, characterized in that The first information is used to determine a starting position of an information block corresponding to the device and a length of the second information.

33. The device according to any one of claims 25 to 27, characterized in that The first information is used to determine a starting position of an information block corresponding to the device and fourth indication information, and the fourth indication information is used to indicate a starting position of the third information.

34. The device according to any one of claims 25 to 27, characterized in that The first information is used to determine a starting position of an information block corresponding to the device and fifth indication information, and the fifth indication information is used to indicate a starting position of the second information.

35. The device according to any one of claims 25 to 27, characterized in that The first information is used to determine a starting position of an information block corresponding to the device and sixth indication information, and the sixth indication information is used to determine whether the information block corresponding to the device includes the second information.

36. The device according to any one of claims 25 to 27, characterized in that The first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

37. The device according to any one of claims 25 to 27, characterized in that The transceiver unit is a transceiver, and the processing unit is a processor.

38. A communication device, characterized in that: The device includes: A processing unit, configured to generate first DCI and first information; the first DCI includes information blocks corresponding to at least one communication device, the at least one communication device including a first communication device; the first information is used to indicate relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to indicate relevant information of a first reference signal, the first reference signal being associated with first configuration information; the third information is used to indicate relevant information of a second reference signal, the second reference signal being associated with second configuration information; the first configuration information is different from the second configuration information; A transceiver unit is configured to send the first information and the first DCI.

39. The device according to claim 38, wherein The information block corresponding to the first communication device includes the second information and the third information; The transceiver unit is further configured to receive the first reference signal and the second reference signal.

40. The device according to claim 38, wherein The information block corresponding to the first communication device includes the third information; The transceiver unit is further configured to receive the second reference signal.

41. The device according to any one of claims 38 to 40, characterized in that The third information includes at least one of relevant information for requesting a reference signal, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, and relevant information for time slot offset indication; The relevant information for requesting a reference signal is used to trigger a second reference signal resource set; The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located; The relevant information for partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; The relevant information for port indication is used to indicate the number of ports of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the switching of the number of ports of the second reference signal.

42. The device according to any one of claims 38 to 40, characterized in that The information block corresponding to the first communication device includes second information and third information; The first information is used to indicate a starting position of the second information and a starting position of the third information.

43. The device according to any one of claims 38 to 40, characterized in that The first information is used to indicate the starting position of the information block corresponding to the first communication device, the first indication information, and the second indication information; The first indication information is used to indicate whether the information block corresponding to the first communication device includes the second information; The second indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

44. The device according to any one of claims 38 to 40, characterized in that The first information is used to indicate the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information; The third indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

45. The device according to any one of claims 38 to 40, characterized in that The first information is used to indicate a starting position of an information block corresponding to the first communication device and a length of the second information.

46. ​​The device according to any one of claims 38 to 40, characterized in that The first information is used to indicate a starting position of an information block corresponding to the first communication device and fourth indication information, and the fourth indication information is used to indicate a starting position of the third information.

47. The device according to any one of claims 38 to 40, characterized in that The first information is used to indicate a starting position of an information block corresponding to the first communication device and fifth indication information, and the fifth indication information is used to indicate a starting position of the second information.

48. The device according to any one of claims 38 to 40, characterized in that The first information is used to indicate a starting position of an information block corresponding to the first communication device and sixth indication information, and the sixth indication information is used to indicate whether the information block corresponding to the first communication device includes the second information.

49. The device according to any one of claims 38 to 40, characterized in that The first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

50. The device according to any one of claims 38 to 40, characterized in that The transceiver unit is a transceiver, and the processing unit is a processor.

51. A communication device, characterized in that Comprising means for performing the method of any one of claims 1 to 24.

52. A communication device, characterized in that The system comprises a processor and an interface circuit, wherein the interface circuit is used to output and / or output information, and the processor is used to execute a computer program so that the method according to any one of claims 1 to 24 is implemented.

53. The communication device according to claim 52, wherein: The communication device is a chip or a chip system.

54. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction, and when the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 24 is implemented.

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