Communication method and apparatus

Abstract

A communication method and apparatus, which can be applied in data transmission. Data transmission is performed by selecting an appropriate time unit from a time period comprising at least two types of time units, thereby meeting low-delay requirements of services and improving the user experience. The method comprises: a first communication apparatus and a second communication apparatus determining the structure of a time period comprising at least two types of time units, wherein frequency-domain resources corresponding to the time units comprise uplink frequency-domain resources and downlink frequency-domain resources, with the uplink frequency-domain resources corresponding to a first type of time units and a second type of time units having different sizes and / or positions, and / or the downlink frequency-domain resources corresponding to the first type of time units and the second type of time units having different sizes and / or positions, and the first type of time units and the second type of time units being any two different types of time units among the at least two types of time units; and the second communication apparatus sending first information to the first communication apparatus, wherein the first information is used for determining reference signal resources respectively corresponding to the at least two types of time units.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 15, 2023, with application number 202311745592.5 and application name “A Communication Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of communications, and in particular to a communication method and apparatus. Background Art

[0003] With the rapid development of mobile communication technology, the 3rd Generation Partnership Project (3GPP) plenary meeting proposed a subband full duplex (SBFD) solution to improve the uplink coverage performance of a time division duplex (TDD) system.

[0004] In the SBFD scheme, the frequency domain of a single TDD carrier is divided into uplink (UL) and downlink (DL) subbands. The sizes of the UL and DL subbands vary semi-statically. Terminal devices can perform uplink transmissions on the uplink subband, and base stations can simultaneously transmit and receive on different subbands of the same carrier.

[0005] However, as service demands continue to change, the required uplink and downlink traffic also changes accordingly. When the user's uplink traffic is large, the current semi-statically configured UL subband size may not meet the service's latency requirements, resulting in reduced service performance and affecting user experience.

[0006] Summary of the Invention

[0007] The present application provides a communication method and device that can meet the low-latency requirements of services and improve user experience.

[0008] In a first aspect, a communication method is provided, which can be executed by a second communication device, or by a component of the second communication device, such as a processor, chip, or chip system of the second communication device, or by a logic module or software that can implement all or part of the functions of the second communication device. The method includes: determining a structure of a time period including at least two types of time units, the frequency domain resources corresponding to the time units including uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units among the at least two types of time units; sending first information to the first communication device, the first information being used to determine the reference signal resources corresponding to the at least two types of time units respectively.

[0009] Based on this solution, since the time period includes multiple types of time units corresponding to uplink frequency domain resources of different sizes and / or positions, the second communication device can select a suitable time unit from at least two types of time units for data transmission according to the size of the uplink and downlink traffic required by the service. For example, when the uplink traffic required by the service is large, the second communication device can schedule the time unit with a larger corresponding uplink frequency domain resource for uplink data transmission. Since the uplink frequency domain resource corresponding to the time unit is large, the uplink data can be transmitted in a shorter time, thereby meeting the low latency requirement of the service and improving the user experience.

[0010] In addition, the second communication device configures reference signal resources corresponding to at least two types of time units through the first information, that is, the second communication device can configure reference signal resources for each type of time unit respectively. Therefore, the first communication device or the second communication device can perform channel measurement with the time unit type as the granularity, thereby enabling highly reliable data transmission on various types of time units.

[0011] At the same time, when the sizes and / or positions of the uplink frequency domain resources corresponding to different types of time units are different, the uplink frequency domain resources corresponding to different types of time units may be subject to different downlink interference situations; when the sizes and / or positions of the downlink frequency domain resources corresponding to different types of time units are different, the downlink frequency domain resources corresponding to different types of time units are subject to different uplink interference situations. When the second communication device configures reference signal resources for each type of time unit separately, channel measurements can be performed separately based on the reference signals corresponding to different types of time units, thereby obtaining more reliable channel quality estimation and improving transmission performance.

[0012] In the second aspect, a communication method is provided, which can be executed by a first communication device, or by a component of the first communication device, such as a processor, chip, or chip system of the first communication device, or by a logic module or software that can realize all or part of the functions of the first communication device. The method includes: determining the structure of a time period including at least two types of time units, the frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units in at least two types of time units; receiving first information from the second communication device, the first information is used to configure the reference signal resources corresponding to the at least two types of time units. The technical effects brought about by the second aspect can refer to the technical effects brought about by the above-mentioned first aspect, and will not be repeated here.

[0013] In combination with the first aspect or the second aspect, in one possible design, the reference signal resources include sounding reference signal SRS resources and / or channel state information reference signal CSI-RS resources.

[0014] In combination with the first aspect or the second aspect, in one possible design, the first information is used to determine reference signal resources for at least two types of time units, respectively, including one or more of the following:

[0015] The first information is used to determine the transmission type of the reference signal resource for at least two types of time units respectively;

[0016] The first information is used to determine time domain resources of reference signal resources for at least two types of time units respectively;

[0017] The first information is used to determine frequency domain resources of reference signal resources for at least two types of time units respectively;

[0018] The first information is used to determine spatial resources of reference signal resources for at least two types of time units respectively.

[0019] In combination with the first aspect or the second aspect, in one possible design, the first information is used to determine the transmission type of the reference signal resource for at least two types of time units, including: the first information is used to determine the transmission type of the reference signal resource for at least two types of time units, as one or more of the following: periodic transmission, semi-static transmission, and non-periodic transmission.

[0020] In combination with the first aspect or the second aspect, in one possible design, the period of the periodic transmission, the non-periodic transmission, or the semi-static transmission includes a slot-level period and / or a symbol-level period.

[0021] In combination with the first aspect or the second aspect, in one possible design, the first information is used to determine the period of the reference signal resource as a time slot level period for at least two types of time units respectively; and / or, the first information is used to determine the period of the reference signal resource as a symbol level period for at least two types of time units respectively.

[0022] In combination with the first aspect or the second aspect, in one possible design, the first information is used to determine time domain resources of reference signal resources for at least two types of time units, respectively, including one or more of the following:

[0023] The first information is used to determine the number of duration units occupied by reference signal resources for at least two types of time units respectively;

[0024] The first information is used to determine the time domain starting position or the time domain ending position of the reference signal resource for at least two types of time units respectively;

[0025] The first information is used to determine the number of repetitions of the reference signal resource for at least two types of time units respectively.

[0026] In combination with the first aspect or the second aspect, in one possible design, the first information is used to determine frequency domain resources of reference signal resources for at least two types of time units, respectively, including one or more of the following:

[0027] The first information is used to determine the frequency domain starting positions of reference signal resources for at least two types of time units respectively;

[0028] The first information is used to determine transmission comb teeth of reference signal resources for at least two types of time units respectively;

[0029] The first information is used to determine frequency hopping parameters of reference signal resources for at least two types of time units respectively.

[0030] In combination with the first aspect or the second aspect, in one possible design, the first information is used to determine spatial resources of reference signal resources for at least two types of time units, including one or more of the following:

[0031] The first information is used to determine antenna ports of reference signal resources for at least two types of time units respectively;

[0032] The first information is used to determine the spatial relationship of reference signal resources for at least two types of time units respectively.

[0033] In combination with the first aspect or the second aspect, in one possible design, the reference signal resource is a CSI-RS resource, and the CSI-RS resource includes a CSI-RS measurement resource and / or a CSI-RS reporting resource; and the first information is used to determine the reference signal resource for at least two types of time units, respectively, and includes one or more of the following:

[0034] The first information is used to determine CSI-RS measurement resources for at least two types of time units respectively;

[0035] The first information is used to determine CSI-RS reporting resources for at least two types of time units respectively.

[0036] In combination with the first aspect or the second aspect, in one possible design, the first information is also used to determine one or more of the following items of the reference signal for at least two types of time units: purpose, power control parameter, path loss, sequence identifier, group hop or sequence hop.

[0037] In combination with the first aspect or the second aspect, in one possible design, the first information includes configuration information of reference signal resources corresponding to at least two types of time units, and the configuration information of the reference signal resources includes first indication information, and the first indication information indicates the correspondence between the time unit and the reference signal resource.

[0038] Based on this possible design, when the first information includes configuration information of reference signal resources corresponding to at least two types of time units, the first communication device does not need to identify the correspondence between the time units and the reference signal resources, which can reduce the implementation complexity of the first communication device.

[0039] In combination with the first aspect or the second aspect, in one possible design, the first information includes configuration information of at least two types of reference signal resources; the correspondence between the time unit and the reference signal resource is determined based on the uplink frequency domain resources and / or downlink frequency domain resources corresponding to the time unit.

[0040] In a third aspect, a communication method is provided, which can be executed by a second communication device, or by a component of the second communication device, such as a processor, chip, or chip system of the second communication device, or by a logic module or software that can implement all or part of the functions of the second communication device. The method includes: sending second information for scheduling one or more types of reference signals from at least two types of reference signals to a first communication device, the at least two types of reference signals corresponding to at least two types of time units, the frequency domain resources corresponding to the time units including uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any different types of time units from the at least two types of time units; and receiving one or more types of reference signals from the first communication device.

[0041] Based on this solution, the second communication device schedules one or more types of reference signals from at least two types of reference signals. Since at least two types of reference signals correspond to at least two types of time units, and different types of time units correspond to uplink frequency domain resources of different sizes and / or positions, the second communication device can select appropriate time units from at least two types of time units for data transmission based on the uplink and downlink traffic required by the service. For example, when the uplink traffic required by the service is large, the second communication device can schedule a time unit with a larger corresponding uplink frequency domain resource for uplink data transmission. Since the uplink frequency domain resource corresponding to the time unit is large, the uplink data can be transmitted in a shorter time, thereby meeting the low latency requirement of the service and improving the user experience.

[0042] In addition, when the sizes and / or positions of the uplink frequency domain resources corresponding to different types of time units are different, the uplink frequency domain resources corresponding to different types of time units may be subject to different downlink interference situations; when the sizes and / or positions of the downlink frequency domain resources corresponding to different types of time units are different, the downlink frequency domain resources corresponding to different types of time units are subject to different uplink interference situations. The second communication device schedules reference signals corresponding to one or more types of time units, which can enable the second communication device or the first communication device to perform channel measurements based on the reference signals corresponding to different types of time units, respectively, thereby obtaining more reliable channel quality estimates corresponding to such time units and improving transmission performance.

[0043] In one possible design, the communication method also includes: the second communication device receives third information from the first communication device indicating the time unit type supported by the first communication device, and / or receives third information from the first communication device indicating the reference signal type corresponding to the time unit type supported by the first communication device, and the reference signal type corresponding to the time unit type supported by the first communication device includes one or more types of reference signals.

[0044] Based on this scheme, the second communication device receives the third information from the first communication device, and obtains the time unit type supported by the first communication device and / or the reference signal type corresponding to the supported time unit type based on the third information, and then schedules the reference signal type corresponding to the time unit type supported by the first communication device, thereby avoiding the second communication device scheduling the reference signal type corresponding to the time unit type that the first communication device does not support, resulting in waste of resources.

[0045] In a fourth aspect, a communication method is provided. The method can be executed by a first communication device, or by a component of the first communication device, such as a processor, chip, or chip system of the first communication device, or by a logic module or software that can implement all or part of the functions of the first communication device. The method includes: receiving second information from a second communication device for scheduling one or more reference signals of at least two types of reference signals, wherein the at least two types of reference signals correspond to at least two types of time units, and the frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any different types of time units of at least two types of time units; and sending one or more reference signals to the second communication device. The technical effects brought about by the fourth aspect can refer to the technical effects brought about by the third aspect above, and will not be repeated here.

[0046] In one possible design, the method also includes: the first communication device sends third information indicating the time unit type supported by the first communication device to the second communication device, and / or sends third information indicating the reference signal type corresponding to the time unit type supported by the first communication device, where the reference signal type corresponding to the time unit type supported by the first communication device includes one or more types of reference signals.

[0047] Based on this solution, the first communication device sends third information to the second communication device indicating the time unit types supported by the first communication device and / or the reference signal types corresponding to the supported time unit types, thereby avoiding the second communication device scheduling the reference signal types corresponding to the time unit types not supported by the first communication device, resulting in waste of resources.

[0048] In combination with the third aspect or the fourth aspect, in one possible design, the second information includes second indication information, and the second indication information indicates the type of one or more types of reference signals.

[0049] In combination with the third aspect or the fourth aspect, in one possible design, the second indication information is carried in a bit map, the bit map includes M bits, M is the total number of types of at least two types of reference signals, and the M bits correspond one-to-one to the M types of reference signals; when the value of the first bit in the M bits is a preset value, the second information is used to schedule a type of reference signal corresponding to the first bit, and the first bit is any bit in the M bits.

[0050] In combination with the third aspect or the fourth aspect, in a possible design, the second indication information is carried in a first field, the first field includes at least one bit, and when the value of the first field is a preset value, the second information is used to schedule a class of reference signals corresponding to the preset value.

[0051] In combination with the third aspect or the fourth aspect, in one possible design, the second information includes reference signal requests and / or time domain offset indications corresponding to one or more types of reference signals.

[0052] In combination with the third aspect or the fourth aspect, in one possible design, the second information is encrypted using a special radio network temporary identifier RNTI.

[0053] In combination with the third aspect or the fourth aspect, in one possible design, the second information is located in any one of the following: downlink control information DCI, group common DCI, sidelink control information SCI, or media access control MAC control element CE signaling.

[0054] In a fifth aspect, a communication device is provided for implementing various methods. The communication device may be the second communication device in the first aspect or the third aspect, or a device included in the second communication device, such as a chip or a chip system; or, the communication device may be the first communication device in the second aspect and the fourth aspect, or a device included in the first communication device, such as a chip or a chip system. The communication device includes a module, unit, or means corresponding to the implementation method, and the module, unit, or means may be implemented by hardware, software, or by executing the corresponding software implementation by hardware. The hardware or software includes one or more modules or units corresponding to the functions.

[0055] In some possible designs, the communication device may include a processing module and a transceiver module. The processing module may be configured to implement the processing functionality of any of the above aspects and any possible implementations thereof. The transceiver module may include a receiving module and a transmitting module, respectively configured to implement the receiving functionality and the transmitting functionality of any of the above aspects and any possible implementations thereof.

[0056] In some possible designs, the transceiver module may be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.

[0057] In a sixth aspect, a communication device is provided, comprising: a processor configured to execute a computer program or instructions to cause the communication device to perform the method described in any aspect. The communication device may be the second communication device described in the first or third aspect, or a device included in the second communication device, such as a chip or a chip system; or the communication device may be the first communication device described in the second and fourth aspects, or a device included in the first communication device, such as a chip or a chip system.

[0058] In some possible designs, the communication device includes a memory for storing necessary program instructions and data. The memory may be coupled to the processor or may be independent of the processor.

[0059] In a seventh aspect, a communication device is provided, comprising: a processor and a communication interface; the communication interface is configured to receive and / or transmit signals; and the processor is configured to execute a computer program or instruction to cause the communication device to perform the method described in any one of the aspects. The communication device may be the second communication device described in the first or third aspect, or a device included in the second communication device, such as a chip or chip system; or the communication device may be the first communication device described in the second and fourth aspects, or a device included in the first communication device, such as a chip or chip system.

[0060] In an eighth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer-readable storage medium is run on a communication device, the communication device can execute the method described in any one of the aspects.

[0061] In a ninth aspect, a communication device is provided (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the functions involved in any aspect.

[0062] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0063] In some possible designs, when the device is a chip system, it can be composed of a chip or include a chip and other discrete devices.

[0064] In a tenth aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, enables the communication device to execute the method described in any one of the aspects.

[0065] It can be understood that when the communication device provided in any one of the fourth to tenth aspects is a chip or a chip system, the sending action / function of the communication device can be understood as output information, and the receiving action / function of the communication device can be understood as input information.

[0066] Among them, the technical effects brought about by any design method in the fifth to tenth aspects can refer to the technical effects brought about by the different design methods in the first to fourth aspects, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] FIG1 is a schematic diagram of an exemplary cellular communication system provided by the present application;

[0068] FIG2 is a schematic diagram of an exemplary satellite communication system provided by the present application;

[0069] FIG3 is a schematic diagram of another exemplary satellite communication system provided by the present application;

[0070] FIG4 is a schematic diagram of an exemplary SL communication system provided in this application;

[0071] FIG5 is a schematic diagram of an exemplary IAB system provided by the present application;

[0072] FIG6 is a schematic diagram of the structure of two exemplary SBFD time periods provided in this application;

[0073] FIG7 is a flow chart of a communication method provided by the present application;

[0074] FIG8 is a schematic diagram of a time period structure provided by the present application;

[0075] FIG9 is a schematic diagram of a reference signal resource provided by the present application having a period of a time slot level period;

[0076] FIG10 is a schematic diagram of a reference signal resource provided by the present application having a symbol-level period;

[0077] FIG11 is a schematic diagram of the density of the comb teeth of a reference signal resource provided by the present application;

[0078] FIG12 is a schematic diagram of frequency hopping of a reference signal resource provided by the present application;

[0079] FIG13 is a flow chart of another communication method provided by the present application;

[0080] FIG14 is a flow chart of another communication method provided by the present application;

[0081] FIG15 is a flow chart of another communication method provided in this application.

[0082] FIG16 is a schematic diagram of a type of second information provided by the present application for scheduling a type of reference signal;

[0083] FIG17 is a schematic diagram of a type of second information provided by the present application for scheduling multiple types of reference signals;

[0084] FIG18 is a schematic structural diagram of a communication device provided by the present application;

[0085] FIG19 is a schematic structural diagram of another communication device provided in this application. DETAILED DESCRIPTION

[0086] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0087] In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0088] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0089] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0090] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0091] It can be understood that in this application, "when" and "if" both mean that corresponding processing will be taken under certain objective circumstances, and do not limit the time, nor do they require any judgment action when implementing, nor do they mean that there are other limitations.

[0092] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. They may also be combined with other features in certain scenarios as needed. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0093] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In each embodiment of this application, unless otherwise specified and there is no logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. Different embodiments, and the technical features of each embodiment in each embodiment can be combined to form a new embodiment according to their inherent logical relationships. The embodiments of this application described below do not constitute a limitation on the scope of protection of this application.

[0094] The technical solution provided in this application can be used in various communication systems, which may be a third generation partnership project (3GPP) communication system, for example, a fourth generation (4G) long term evolution (LTE) system, a fifth generation (5G) new radio (NR) system, a vehicle to everything (V2X) system, a system of hybrid networking of LTE and NR, a non-terrestrial network (NTN) system, or a sidelink (SL) communication system, a device-to-device (D2D) system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT), and other next generation communication systems. Alternatively, the communication system may also be a non-3GPP communication system, without limitation.

[0095] The above-mentioned communication systems applicable to the present application are merely examples, and the communication systems applicable to the present application are not limited thereto. They are described uniformly here and will not be elaborated on below. Exemplarily, the communication system applicable to the present application may include a first communication device and a second communication device. For example, the communication system may be a cellular communication system, an NTN system (such as a satellite communication system, an intersatellite communication system, etc.), an SL communication system, an integrated access and backhaul (IAB) system, etc.

[0096] Referring to FIG. 1 , an exemplary cellular communication system provided herein is shown. The cellular communication system includes at least one network device (such as 110 a and 110 b in FIG. 1 ) and at least one terminal device (such as 120 a - 120 j in FIG. 1 ). In the cellular communication system, a first communication device may be a terminal device, and a second communication device may be a network device.

[0097] Optionally, terminal devices and network devices can communicate with each other via wired or wireless means. Figure 1 is merely a schematic diagram. The communication system may also include other network devices, such as wireless relay devices, wireless backhaul devices, and core network devices, which are not shown in Figure 1. The number of network devices and terminal devices shown in Figure 1 is merely an example. The communication system may include more or fewer network devices or terminal devices than shown in Figure 1.

[0098] Referring to Figure 2 , an exemplary satellite communication system provided herein is shown. The satellite communication system includes at least one satellite device and at least one terminal device. Furthermore, it may also include at least one ground network device. The satellite device can communicate with both the terminal device and the ground network device. When a satellite device communicates with a terminal device, the first communication device may be the terminal device and the second communication device may be the satellite device. When a satellite device communicates with a ground network device, the first communication device may be the ground network device and the second communication device may be the satellite device.

[0099] For example, the satellite device may be a network device deployed on a satellite, that is, some or all functions of the network device may be deployed on the satellite. The satellite may be a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite, etc.

[0100] Optionally, the satellite device in FIG2 may also be replaced by other non-ground network devices, such as network devices deployed on drones or hot air balloons.

[0101] FIG3 shows an exemplary intersatellite communication system provided by the present application. The intersatellite communication system includes at least two satellite devices. The two satellite devices can communicate with each other. In the system, the first communication device can be a satellite device, and the second communication device can be another satellite.

[0102] For example, an intersatellite communication system can be divided into two major parts: the acquisition, pointing, and tracking (APT) subsystem and the communication subsystem. The communication subsystem is responsible for transmitting intersatellite information and is the core of the intersatellite communication system. The APT system is responsible for acquisition, pointing, and tracking between satellites. Acquisition refers to determining the direction of incoming signals, pointing refers to adjusting the direction of transmitted signals to the receiving direction, and tracking refers to continuously adjusting the alignment and acquisition throughout the communication process.

[0103] Referring to FIG4 , an exemplary SL communication system provided by the present application is shown. The SL communication system includes at least two terminal devices. In the system, the first communication device may be a terminal device, and the second communication device may be another terminal device.

[0104] Referring to FIG5 , an exemplary IAB system provided by the present application is shown. The IAB system includes an IAB donor, at least one IAB node, and at least one terminal device. The IAB node can communicate with the IAB donor and the terminal device. For example, the IAB node and the IAB donor can be network devices. When the IAB node and the IAB donor communicate, the first communication device can be the IAB node and the second communication device can be the IAB donor; when the terminal device and the IAB node communicate, the first communication device can be the terminal device and the second communication device can be the IAB node.

[0105] Optionally, a terminal device may refer to a user-side device with wireless transceiver capabilities. A terminal device may also be referred to as user equipment (UE), terminal, access terminal, user unit, user station, mobile station (MS), remote station, remote terminal, mobile terminal (MT), user terminal, wireless communication device, user agent, or user device. The terminal device may be, for example, a terminal device in an SL communication system, IoT, V2X, D2D, M2M, 5G network, or a future evolved public land mobile network (PLMN).

[0106] Exemplarily, the terminal device may be a drone, an IoT device (e.g., a sensor, an electricity meter, a water meter, etc.), a V2X device, a station (ST) in a wireless local area network (WLAN), a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device (also referred to as a wearable smart device), a tablet computer or a computer with wireless transceiver function, a VR terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a smart home, or a similar device. The present invention relates to wireless terminal devices in homes, vehicle-mounted terminal devices, vehicles with vehicle-to-vehicle (V2V) communication capabilities, intelligent connected vehicles, drones with unmanned aerial vehicle (UAV) to unmanned aerial vehicle (UAV) communication capabilities, etc. The embodiments of this application do not limit the specific technology and specific device form used by the terminal devices.

[0107] Optionally, the network device is a device that connects a terminal device to a wireless network, and may be an evolutionary Node B (eNB or eNodeB) in an LTE or evolved LTE system (LTE-Advanced, LTE-A), such as a traditional macro base station eNB and a micro base station eNB in ​​a heterogeneous network scenario; or it may be a next generation node B (gNodeB or gNB) in a 5G system; or it may be a transmission reception point (TRP); or it may be a base station in a future evolved PLMN; or it may be a broadband network gateway (BNG), an aggregation switch or a non-3GPP access device; or it may be a wireless controller in a cloud radio access network (CRAN); or it may be an access point (AP) in a WiFi system; or it may be a wireless relay node or a wireless backhaul node; or it may be a device that implements base station functions in IoT, V2X, D2D, or M2M. The embodiments of the present application do not specifically limit this. Exemplarily, the network devices in the embodiments of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, etc., and the embodiments of the present application do not specifically limit this.

[0108] In some possible scenarios, the network device may also be a module or unit that can implement some or all of the functions of a base station. For example, the network device may be a centralized unit (CU), a distributed unit (DU), a CU and a DU, a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0109] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the network device may be a network device or a module of a network device in an open radio access network (open RAN, ORAN) system. In the ORAN system, CU may also be referred to as open (open, O)-CU, DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0110] Network devices and terminal devices can be fixed or mobile. Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water (such as ships); and can also be deployed in the air (such as on airplanes, balloons, and artificial satellites). The embodiments of this application do not limit the application scenarios of network devices and terminal devices.

[0111] In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction to the relevant technologies of the present application is first given as follows.

[0112] (1) Ultra reliable low latency communications (URLLC):

[0113] URLLC is one of the three major 5G application scenarios and a defining feature that distinguishes 5G from second-generation (2G), third-generation (3G), and 4G. URLLC's key features are low latency and high reliability. URLLC has been widely adopted in areas such as autonomous driving, industrial manufacturing, connected vehicles, and smart grids. However, different scenarios have varying requirements for latency, reliability, and bandwidth.

[0114] (2) Subband full duplex (SBFD):

[0115] With the rapid development of mobile communication technology, the 3GPP plenary meeting proposed the SBFD solution to improve the uplink coverage performance of the time division duplex (TDD) system.

[0116] In the SBFD scheme, the frequency domain resources on the orthogonal frequency division multiplexing symbol (OS) are divided into uplink (UL) subbands and downlink (DL) subbands. This OS is called an SBFD OS. Terminal devices can perform uplink transmissions on the uplink subband of the SBFD OS, and network devices can simultaneously transmit and receive on different subbands of the SBFD OS. In addition, if the frequency domain resources of the OS are not divided into UL subbands and DL subbands, that is, all the frequency domain resources of the OS are used for UL transmission or DL ​​transmission, then the OS can be called a non-SBFD OS.

[0117] In Release 18 (R18), 3GPP primarily discussed two SBFD time period structures. For example, as shown in Figure 6, both SBFD time period structures include an SBFD OS and a non-SBFD OS. In Figure 6(a), the frequency domain resources of the SBFD OS in the SBFD time period structure are divided into three parts: a DL subband, a UL subband, and a DL subband. In Figure 6(b), the frequency domain resources of the SBFD OS in the SBFD time period structure are divided into two parts: a DL subband and a UL subband. It should be understood that a time period represents a period of time occupied in the time domain. For example, a time period can be multiple symbols, mini-slots, time slots, subframes, frames, or a period of time predetermined by the protocol. The time period structure represents a period of time occupied in the time domain and continuous or discontinuous available frequency domain resources occupied in the frequency domain. The embodiments of the present application do not limit the specific names of the time periods and their structures.

[0118] In the aforementioned SBFD solution, the sizes of the UL and DL subbands vary semi-statically. However, as service demands evolve, the required uplink and downlink traffic also changes. If users experience heavy uplink traffic, the current semi-static UL subband size may not meet service latency requirements, resulting in degraded service performance and a negative user experience.

[0119] Based on this, the present application proposes a communication method, which includes: a first communication device and a second communication device determine the structure of a time period, which time period includes at least two types of time units; the second communication device sends first information to the first communication device, and the first information is used to determine the reference signal resources corresponding to the at least two types of time units. Among them, the frequency domain resources corresponding to the at least two types of time units include uplink frequency domain resources and downlink frequency domain resources. The size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different. The first type of time unit and the second type of time unit are any two different types of time units among the at least two types of time units.

[0120] Based on this solution, since the time period includes multiple types of time units corresponding to uplink frequency domain resources of different sizes and / or positions, the second communication device can select a suitable time unit from at least two types of time units for data transmission according to the size of the uplink and downlink traffic required by the service. For example, when the uplink traffic required by the service is large, the second communication device can schedule the time unit with a larger corresponding uplink frequency domain resource for uplink data transmission. Since the uplink frequency domain resource corresponding to the time unit is large, the uplink data can be transmitted in a shorter time, thereby meeting the low latency requirement of the service and improving the user experience.

[0121] In addition, the second communication device configures reference signal resources corresponding to at least two types of time units through the first information, that is, the second communication device can configure reference signal resources for each type of time unit respectively. Therefore, the first communication device or the second communication device can perform channel measurement with the time unit type as the granularity, thereby enabling highly reliable data transmission on various types of time units.

[0122] At the same time, when the sizes and / or positions of the uplink frequency domain resources corresponding to different types of time units are different, the uplink frequency domain resources corresponding to different types of time units may be subject to different downlink interference situations; when the sizes and / or positions of the downlink frequency domain resources corresponding to different types of time units are different, the downlink frequency domain resources corresponding to different types of time units are subject to different uplink interference situations. When the second communication device configures reference signal resources for each type of time unit separately, channel measurements can be performed separately based on the reference signals corresponding to different types of time units, thereby obtaining more reliable channel quality estimation and improving transmission performance.

[0123] The following describes the communication method provided in the embodiments of the present application in conjunction with the accompanying drawings. In the following embodiments of the present application, the method steps performed by the first communication device may be implemented by at least one chip in the first communication device, and the method steps performed by the second communication device may be implemented by at least one chip in the second communication device.

[0124] It is understood that in the embodiments of the present application, the second communication device or the first communication device may perform some or all of the steps in the embodiments of the present application. These steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of various operations. In addition, the various steps may be performed in a different order than those presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be performed.

[0125] It should be noted that the information names between the devices or the names of the parameters in the information in the following embodiments of the present application are only examples. Other names may be used in specific implementations, and the embodiments of the present application do not specifically limit this.

[0126] Exemplarily, the communication method provided in the embodiment of the present application can be applied to URLLC scenarios, and of course can also be used in other business scenarios with low latency, high reliability and other requirements, without limitation. In addition, the communication method provided in the embodiment of the present application can be applied to SBFD scenarios, full-duplex scenarios or half-duplex scenarios. This application does not specifically limit the application scenarios of the communication method, and the above exemplary scenarios do not impose any limitations on the communication method of the present application.

[0127] As shown in FIG7 , a communication method provided in an embodiment of the present application includes the following steps:

[0128] S701: The second communication device determines a time period structure.

[0129] Among them, the time period includes at least two types of time units. The frequency domain resources corresponding to the at least two types of time units include uplink frequency domain resources and downlink frequency domain resources. Exemplarily, the time unit in this application can be an OFDM symbol, a mini-time slot, an aggregated time slot, a subframe, a time agreed upon by the protocol, etc. A wireless frame may include multiple subframes, each subframe includes one or more time slots, and each time slot includes multiple OFDM symbols. For the convenience of description, OFDM symbols are referred to as symbols in the following embodiments of this application. The embodiments of this application do not limit the specific names of time units.

[0130] Among them, the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different. The first type of time unit and the second type of time unit are any two different types of time units among at least two types of time units. That is, at least one of the following items corresponding to the first type of time unit and the second type of time unit is different: the size of the uplink frequency domain resources, the position of the uplink frequency domain resources, the size of the downlink frequency domain resources or the position of the downlink frequency domain resources. The size of the uplink frequency domain resources, the position of the uplink frequency domain resources, the size of the downlink frequency domain resources and the position of the downlink frequency domain resources corresponding to the same type of time units are all the same.

[0131] In one possible implementation, taking a time slot as an example, a time period including at least two types of time units may mean that one time period includes at least two types of time slots. Taking a subframe as an example, a time period including at least two types of time units may mean that one time period includes at least two types of subframes. Taking a mini-slot as an example, a time period including at least two types of time units may mean that one time period includes at least two types of mini-slots.

[0132] In another possible implementation, taking the time unit as a symbol and the time period as a time slot as an example, the time period including at least two types of time units may refer to: a time slot including at least two types of time units, that is, a time slot including at least two types of symbols, and at least two types of symbols both include uplink frequency domain resources and downlink frequency domain resources.

[0133] Optionally, the time period also includes a third type of time unit, and the frequency domain resources corresponding to the third type of time unit are all uplink frequency domain resources or all downlink frequency domain resources.

[0134] In a possible implementation, taking the time unit as a symbol and the time period as a time slot as an example, the time period also includes the third type of time unit, which may mean: a time slot also includes the third type of time unit, that is, a time slot also includes the third type of symbol, and the frequency domain resources corresponding to the third type of symbol include uplink frequency domain resources or downlink frequency domain resources.

[0135] For example, taking a time unit as a symbol, a time period including at least two types of time units means that a time slot includes at least two types of symbols, and a time slot also includes a third type of symbol. As shown in FIG8(a), a time slot includes a first type of symbol (denoted as OS1), a second type of symbol (denoted as OS2), and a third type of symbol (denoted as OS3). Symbols #0, #1, #2, #3, and #4 are of type OS1; symbols #5, #6, #7, and #8 are of type OS2; and symbols #9, #10, and #11 are of type OS3. The frequency domain resources corresponding to OS1 and OS2 include uplink frequency domain resources (the shaded area shown in FIG8(a)) and downlink frequency domain resources (the unshaded area shown in FIG8(a)). The frequency domain resources corresponding to OS3 are all uplink frequency domain resources, and OS3 is a third type of time unit. Furthermore, the uplink frequency domain resources corresponding to OS1 and OS2 differ in size and position, and the downlink frequency domain resources corresponding to OS1 and OS2 differ in size and position. Optionally, the number and / or position of the same type of symbols in different time slots may be different.

[0136] For example, in the example shown in (a) in Figure 8, OS1 includes symbol #0, symbol #1, symbol #2, symbol #3 and symbol #4, and in the example shown in (b) in Figure 8, OS1 includes symbol #9, symbol #10 and symbol #11; in the example shown in (a) in Figure 8, OS3 includes symbol #9, symbol #10 and symbol #11, and in the example shown in (b) in Figure 8, OS3 includes symbol #0, symbol #1, symbol #2, symbol #3 and symbol #4.

[0137] S702: The first communication device determines a time period structure. The time period structure can be referred to the relevant description in step S701 and will not be repeated here.

[0138] Optionally, the second communication device may configure a time period structure for the first communication device, and accordingly, the first communication device determines the time period structure based on the configuration of the second communication device.

[0139] S703: The second communication device sends the first information to the first communication device. Correspondingly, the first communication device receives the first information from the second communication device.

[0140] In which, the first information is used to determine the reference signal resources for the above-mentioned at least two types of time units respectively, or in other words, the first information is used to independently configure the reference signal resources at the time unit type level for the above-mentioned at least two types of time units, or in other words, the first information is used to configure the reference signal resources with the time unit type as the granularity.

[0141] In the embodiment of the present application, determining a reference signal resource for a time unit may also be understood as configuring or indicating a reference signal resource for a time unit, and the two may be interchangeable.

[0142] Exemplarily, a reference signal resource is used to carry a reference signal, and the reference signal carried on the reference signal resource corresponding to a certain type of time unit is used for channel estimation or channel sounding in that type of time unit. For example, the reference signal may include an SRS and / or a CSI-RS, and accordingly, the reference signal resource may include an SRS resource and / or a CSI-RS resource.

[0143] Optionally, the reference signal may also include a phase-tracking reference signal (PT-RS), and the reference signal resource may also include a PT-RS resource.

[0144] Optionally, the CSI-RS resources may include CSI-RS measurement resources and / or CSI-RS reporting resources. In this case, the first information is used to determine reference signal resources for at least two types of time units, respectively, and may include one or more of the following: first information is used to determine CSI-RS measurement resources for at least two types of time units, respectively, or first information is used to determine CSI-RS reporting resources for at least two types of time units, respectively.

[0145] In a possible implementation manner, when the time period further includes a third type of time unit, the first information is further used to determine a reference signal resource for the third type of time unit.

[0146] Exemplarily, taking the reference signal as SRS, based on the example shown in FIG8 , the first information is used to configure SRS resource #1 for OS1, and also used to configure SRS resource #2 for OS2, and used to configure SRS resource #3 for OS3.

[0147] Exemplarily, taking the reference signal as CSI-RS, based on the example shown in FIG8 , the first information is used to configure CSI-RS measurement resource #1 for OS1, and is also used to configure CSI-RS measurement resource #2 for OS2, and is used to configure CSI-RS measurement resource #3 for OS3, and / or, the first information is used to configure CSI-RS reporting resource #1 for OS1, and is also used to configure CSI-RS reporting resource #2 for OS2, and is used to configure CSI-RS reporting resource #3 for OS3.

[0148] Optionally, the first information can be carried in high-layer signaling (such as radio resource control (RRC), media access control (MAC) control element (CE) signaling) or physical layer signaling (such as downlink control information (DCI), sidelink control information (SCI)).

[0149] Optionally, after step S703, the first communication device may determine reference signal resources corresponding to at least two types of time units respectively according to the first information, so that a reference signal can be subsequently sent on the reference signal resources.

[0150] Based on this solution, since the time period includes multiple types of time units corresponding to uplink frequency domain resources of different sizes and / or positions, the second communication device can select a suitable time unit from at least two types of time units for data transmission according to the size of the uplink and downlink traffic required by the service. For example, when the uplink traffic required by the service is large, the second communication device can schedule the time unit with a larger corresponding uplink frequency domain resource for uplink data transmission. Since the uplink frequency domain resource corresponding to the time unit is large, the uplink data can be transmitted in a shorter time, thereby meeting the low latency requirement of the service and improving the user experience.

[0151] For example, based on the example shown in FIG8 , the second communication device can select an appropriate time unit from OS1, OS2, and OS3 for data transmission based on the uplink and downlink traffic required by the service. For example, when the uplink traffic required by the service is small, OS1, which has smaller uplink frequency domain resources, can be selected for data transmission; when the uplink traffic required by the service is large, OS2 and OS3, which have larger uplink frequency domain resources, can be selected for data transmission.

[0152] In addition, the second communication device configures reference signal resources corresponding to at least two types of time units through the first information, that is, the second communication device can configure reference signal resources for each type of time unit respectively. Therefore, the first communication device or the second communication device can perform channel measurement with the time unit type as the granularity, thereby enabling highly reliable data transmission on various types of time units.

[0153] At the same time, when the sizes and / or positions of the uplink frequency domain resources corresponding to different types of time units are different, the uplink frequency domain resources corresponding to different types of time units may be subject to different downlink interference situations; when the sizes and / or positions of the downlink frequency domain resources corresponding to different types of time units are different, the downlink frequency domain resources corresponding to different types of time units are subject to different uplink interference situations. When the second communication device configures reference signal resources for each type of time unit separately, channel measurements can be performed separately based on the reference signals corresponding to different types of time units, thereby obtaining more reliable channel quality estimation and improving transmission performance.

[0154] Exemplarily, based on the example shown in (a) of FIG8 above, when the first communication device or the second communication device sends a reference signal on the reference signal resource corresponding to symbol #10 in time slot #1, the measured channel environment only represents the type of symbol #10, i.e., the channel environment of OS3. Since the downlink interference conditions of the uplink frequency domain resources of OS1 and OS2 are different from the downlink interference conditions of OS3, if the channel environment corresponding to OS3 is used for transmission configuration on OS1 and OS2, transmission performance may be lost. When the second communication device configures reference signal resources for each type of time unit separately, channel measurements can be performed based on the reference signals corresponding to OS1 and OS2, respectively, to obtain more reliable channel quality estimates corresponding to OS1 and OS2, thereby performing more appropriate transmission configuration to improve transmission performance.

[0155] The above describes the overall process of the communication method provided in this application. The function of the first information is introduced in detail below.

[0156] Exemplarily, the first information is used to determine reference signal resources for at least two types of time units, respectively, and includes one or more of the following:

[0157] The first information is used to determine the transmission type of the reference signal resource for at least two types of time units respectively;

[0158] The first information is used to determine time domain resources of reference signal resources for at least two types of time units respectively;

[0159] The first information is used to determine frequency domain resources of reference signal resources for at least two types of time units respectively;

[0160] The first information is used to provide spatial resources of reference signal resources for at least two types of time units.

[0161] Exemplarily, based on the example shown in Figure 8 above, the first information is used to configure at least one of the transmission type, time domain resources, frequency domain resources or spatial domain resources of SRS resource #1 for OS1, and is also used to configure at least one of the transmission type, time domain resources, frequency domain resources or spatial domain resources of SRS resource #2 for OS2, and to configure at least one of the transmission type, time domain resources, frequency domain resources or spatial domain resources of SRS resource #3 for OS3.

[0162] In this application, the transmission type may also be referred to as the resource type. When the reference signal is CSI-RS and the reference signal resource is a CSI-RS reporting resource, the transmission type may also be referred to as the reporting type, and the time domain resources, frequency domain resources, and spatial domain resources may also be referred to as reporting time-frequency-space resources. In one possible implementation, the transmission type of the reference signal resource may include: periodic transmission, semi-static transmission, or non-periodic transmission. The first information is used to determine the transmission type of the reference signal resource for at least two types of time units, including: the first information is used to determine the transmission type of the reference signal resource for at least two types of time units, as one or more of the following: periodic transmission, semi-static transmission, and non-periodic transmission.

[0163] Exemplarily, when the transmission type of the reference signal resource is periodic transmission, after the first communication device or the second communication device receives the configuration information of the reference signal resource, it periodically transmits the reference signal on the reference signal resource until the configuration information of the reference signal resource becomes invalid.

[0164] If the reference signal resource transmission type is semi-static transmission, after the second communication device configures the periodic reference signal resource, it must also send higher-layer activation signaling (such as MAC CE) for activation. After receiving the activation signaling, the first communication device periodically transmits the reference signal on the reference signal resource until it receives deactivation signaling from the second communication device.

[0165] When the transmission type of the reference signal resource is aperiodic transmission, after the second communication device configures the periodic reference signal resource, it needs to send physical layer activation signaling (such as DCI) for activation. After receiving the activation signaling, the first communication device transmits the reference signal on the reference signal resource.

[0166] Optionally, the transmission types of the reference signal resources configured by the second communication device for different types of time units may be different.

[0167] A possible example, based on the example shown in Figure 8 above, the first information is used to configure the transmission type of SRS resource #1 for OS1 as semi-static transmission, and is also used to configure the transmission type of SRS resource #2 for OS2 as periodic transmission, and is used to configure the transmission type of SRS resource #3 for OS3 as non-periodic transmission.

[0168] Optionally, the period of periodic transmission, aperiodic transmission, or semi-static transmission includes a slot-level period and / or a symbol-level period. When the period of the reference signal resource is a slot-level period, the period size of the reference signal resource may be X slots. When the period of the reference signal resource is a symbol-level period, the period size of the reference signal resource may be Y symbols of the same type, where X and Y are positive integers.

[0169] For example, different types of time units may correspond to different periodicity types. Based on the example shown in FIG8 , the first information is used to configure the transmission type of SRS resource #1 for OS1 as periodic transmission with a slot-level periodicity; and is also used to configure the transmission type of SRS resource #2 for OS2 as periodic transmission with a symbol-level periodicity.

[0170] Optionally, the first information is used to determine the period of the reference signal resource as a time slot-level period for at least two types of time units, or the first information is used to determine the period of the reference signal resource as a symbol-level period for at least two types of time units.

[0171] Exemplarily, the first information configures reference signal resources for at least two types of time units with a periodicity of a slot-level periodicity, and the slot-level periods may have different period sizes. For example, in which the first information is used to configure SRS resources with a slot-level periodicity for OS1, OS2, and OS3, as shown in FIG9 , the first information is used to configure SRS resource #1 for OS1 with a periodicity of 2 slots, SRS resource #2 for OS2 with a periodicity of 4 slots, and SRS resource #3 for OS3 with a periodicity of 5 slots.

[0172] Exemplarily, the first information configures the reference signal resources for at least two types of time units, respectively, with a symbol-level periodicity, and the symbol-level periods may have different lengths. For example, taking the case where the first information is used to configure SRS resources with a symbol-level periodicity for OS1, OS2, and OS3, as shown in FIG10 , the first information is used to configure SRS resource #1 for OS1 with a period of 5 OS1s, to configure SRS resource #2 for OS2 with a period of 5 OS2s, and to configure SRS resource #3 for OS3 with a period of 10 OS3s.

[0173] Optionally, the second communication device may configure the period size of the reference signal resource for a certain type of symbol based on the quality of the channel environment corresponding to that type of symbol. For example, when the channel environment corresponding to OS1 is relatively complex and the interference of downlink frequency domain resources on uplink frequency domain resources is relatively severe, SRS resource #1 with a smaller period may be configured for OS1; when the channel environment corresponding to OS2 is relatively simple and the interference of downlink frequency domain resources on uplink frequency domain resources is relatively small, SRS resource #2 with a larger period may be configured for OS2.

[0174] In a possible implementation, the first information is used to determine time domain resources of reference signal resources for at least two types of time units, respectively, and includes one or more of the following:

[0175] The first information is used to determine the number of duration units occupied by reference signal resources for at least two types of time units respectively;

[0176] The first information is used to determine the time domain starting position or the time domain ending position of the reference signal resource for at least two types of time units respectively;

[0177] The first information is used to determine the number of repetitions of the reference signal resource for at least two types of time units respectively.

[0178] Optionally, the number of duration units occupied by the reference signal resource is less than the number of time units of the first type included in the period of the reference signal resource. That is, when the period of the reference signal resource includes N first-type symbols, where N is a positive integer, the number of duration units occupied by the reference signal resource can be any integer between 0 and N.

[0179] As a possible implementation, the duration units occupied by the reference signal resource corresponding to a certain type of time unit are Z consecutive time units of this type within a first range. The first range is a time domain range of one time slot, or the first range is composed of the time domain positions of multiple time units of this type. Z is the number of duration units occupied by the reference signal resource, and Z is a positive integer.

[0180] Optionally, the first range may span time slots, that is, the first range may be composed of multiple such time units within multiple time slots, or the first range includes multiple time slots.

[0181] As a possible implementation, the second range is a time slot, and the offset between the time domain starting position or the time domain ending position of the reference signal resource corresponding to a certain type of time unit and the first time unit or the last time unit of such type in the second range is P time units of such type, or the offset between the time domain starting position or the time domain ending position of the reference signal resource corresponding to a certain type of time unit and the first time unit or the last time unit in the second range is P time units.

[0182] As an example, the first range and the second range are both a time slot, and the first information configures different numbers of duration units and time domain starting positions for different time units, or the first information configures different numbers of duration units and time domain ending positions for different time units.

[0183] Exemplarily, based on the example shown in (a) of FIG8 above, taking the case where the first information is used to configure the SRS resources of the time slot level period for both OS1 and OS2, and the time slot level period is 1 time slot, the first range is time slot #1, and the second range is time slot #1 as an example, the first information is used to configure the number of duration units occupied by the SRS resource #1 for OS1 as 3, and the offset between the time domain starting position of the SRS resource #1 configured for OS1 and the first OS1 (i.e., symbol #0) in time slot #1 is 1, or, the first information is used to configure the SRS resource #1 for OS1 as 1. Set the offset between the time domain starting position of SRS resource #1 and the last OS1 in time slot #1 (i.e., symbol #4) to 3, or the offset between the time domain starting position of SRS resource #1 configured for OS1 and the first symbol in time slot #1 (i.e., symbol #0) to 1, or the offset between the time domain starting position of SRS resource #1 configured for OS1 and the last symbol in time slot #1 (i.e., symbol #11) to 10. At this time, the duration units occupied by SRS resource #1 are symbol #1, symbol #2, and symbol #3. The first information is also used to configure the number of duration units occupied by SRS resource #2 for OS2 to be 2, and to configure the time domain starting position of SRS resource #2 for OS2 to have an offset of 2 from the first OS2 (i.e., symbol #5) in time slot #1, or to configure the time domain starting position of SRS resource #2 for OS2 to have an offset of 1 from the last OS2 (i.e., symbol #8) in time slot #1, or to configure the time domain starting position of SRS resource #2 for OS2 to have an offset of 7 from the first symbol (i.e., symbol #0) in time slot #1, or to configure the time domain starting position of SRS resource #2 for OS2 to have an offset of 4 from the last symbol (i.e., symbol #11) in time slot #1, at which time the duration units occupied by SRS resource #2 are symbol #7 and symbol #8.

[0184] As another possible implementation, the second range is composed of the time domain positions of multiple such time units, and the offset between the time domain starting position or the time domain ending position of the reference signal resource corresponding to a certain type of time unit and the first such time unit or the last such time unit in the second range is P such time units.

[0185] Optionally, the second range may span time slots, that is, the second range may be composed of multiple such time units within multiple time slots, or the second range includes multiple time slots.

[0186] As an example, the first range and the second range are both composed of time domain positions of multiple time units of a certain type, and the first information configures different numbers of duration units and time domain starting positions for different time units, or the first information configures different numbers of duration units and time domain ending positions for different time units.

[0187] Exemplarily, based on the example in FIG8 above, taking the first information used to configure the symbol-level periodic SRS resources for both OS1 and OS2 as an example, the first information is used to configure the period of SRS resource #1 for OS1 as 7 OS1s. At this time, the first range and the second range are both composed of the time domain positions of symbol #0, symbol #1, symbol #2, symbol #3, and symbol #4 in time slot #1, and symbol #9 and symbol #10 in time slot #2. The first information is used to configure the number of duration units occupied by SRS resource #1 for OS1. The offset between the time domain starting position for configuring SRS resource #1 for OS1 and the first OS1 in time slot #1 (i.e., symbol #0 in time slot #1) is 2, or the time domain starting position for configuring SRS resource #1 for OS1 and the last OS1 in time slot #1 (i.e., symbol #10 in time slot #2) is 4, and the duration units occupied by SRS resource #1 are symbol #2, symbol #3, and symbol #4 in time slot #1, and symbol #9 and symbol #10 in time slot #2.

[0188] The first information is also used to configure the period of SRS resource #2 for OS2 to be 5 OS2s, and the first range and the second range are both composed of symbol #5, symbol #6, symbol #7, symbol #8 in time slot #1, and the time domain position of symbol #5 in time slot #2. It is also used to configure the number of duration units occupied by SRS resource #2 for OS2 to be 2, and to configure the time domain starting position of SRS resource #2 for OS2 to be offset by 3 from the first OS2 in the second range (that is, symbol #5 in time slot #1), or to configure the time domain starting position of SRS resource #2 for OS2 to be offset by 1 from the last OS2 in the second range (that is, symbol #5 in time slot #2), at which time the duration units occupied by SRS resource #2 are symbol #8 in time slot #1 and symbol #5 in time slot #2.

[0189] As a possible implementation, the number of repetitions of the reference signal resource is used to indicate the number of times the reference signal is repeatedly sent.

[0190] In a possible implementation, the first information is used to determine frequency domain resources of reference signal resources for at least two types of time units, respectively, and includes one or more of the following:

[0191] The first information is used to determine the frequency domain starting positions of reference signal resources for at least two types of time units respectively;

[0192] The first information is used to determine transmission comb teeth of reference signal resources for at least two types of time units respectively;

[0193] The first information is used to determine frequency hopping parameters of reference signal resources for at least two types of time units respectively.

[0194] As a possible implementation, the first information is used to determine the frequency domain starting position of the reference signal resource for at least two types of time units, including one or more of the following: the first information is used to determine the frequency domain position of the reference signal resource for at least two types of time units, or the first information is used to determine the frequency domain offset of the reference signal resource for at least two types of time units.

[0195] Optionally, the frequency domain starting position of the reference signal resource is used to indicate the position of the frequency domain starting subcarrier of the reference signal resource. This application does not limit the method for indicating the frequency domain starting position.

[0196] Exemplarily, the frequency domain positions and frequency domain offsets of the reference signal resources configured by the second communication device for different types of time units may be different.

[0197] As a possible implementation, the first information is used to determine transmission comb teeth of reference signal resources for at least two types of time units, including one or more of the following:

[0198] The first information is used to determine the density of the comb teeth of the reference signal resource for at least two types of time units respectively;

[0199] The first information is used to determine the cyclic shift of the comb teeth of the reference signal resource for at least two types of time units respectively;

[0200] The first information is used to determine the offset of the comb teeth of the reference signal resource for at least two types of time units respectively.

[0201] For example, the transmission teeth of the reference signal resource can be determined based on parameters such as the density of the reference signal resource teeth, the cyclic shift of the reference signal resource, and the offset of the reference signal resource teeth. The density of the teeth is used to determine the resource density of the parameter signal; the cyclic shift of the teeth is used to determine the reference signal sequence; and the offset of the teeth is used to determine the specific location of the reference signal.

[0202] Optionally, the densities of the teeth of the reference signal resources configured by the second communication device for different types of time units may be different.

[0203] Exemplarily, as shown in Figure 11, the first information is used to configure the density of the comb teeth of SRS resource #1 for OS1, which is denoted as n2, that is, in the uplink frequency domain resources of OS1, one subcarrier for every two subcarriers is SRS resource #1; it is also used to configure the density of the comb teeth of SRS resource #2 for OS2, which is denoted as n4, that is, in the uplink frequency domain resources of OS2, one subcarrier for every four subcarriers is used as SRS resource #2; and it is used to configure the density of the comb teeth of SRS resource #3 for OS3, which is denoted as n8, that is, in the uplink frequency domain resources of OS3, one SRS resource #3 is configured for every eight subcarriers.

[0204] Optionally, the cyclic shifts of the comb teeth and / or the offsets of the comb teeth of the reference signal resources configured by the second communication device for different types of time units may be different.

[0205] As a possible implementation, the first information is used to determine frequency hopping parameters of reference signal resources for at least two types of time units, including one or more of the following:

[0206] The first information is used to determine whether the reference signal resource is frequency-hopped for at least two types of time units respectively;

[0207] The first information is used to determine frequency hopping positions of reference signal resources for at least two types of time units respectively.

[0208] Optionally, the second communication device may configure different frequency hopping parameters for different types of time units.

[0209] Exemplarily, as shown in FIG12 , based on the example shown in FIG8 , the first information is used to configure SRS resource #1 for OS1 to not perform frequency hopping, is also used to configure SRS resource #2 for OS2 to perform frequency hopping, and is also used to configure SRS resource #3 for OS3 to not perform frequency hopping. The first information is also used to configure the frequency hopping position of SRS resource #2 for OS2, and the frequency hopping position of SRS resource #2 in time slot #1 is different from that of SRS resource #2 in time slot #2.

[0210] In one possible implementation, the first information is used to determine spatial resources of reference signal resources for at least two types of time units, respectively, and includes one or more of the following:

[0211] The first information is used to determine antenna ports of reference signal resources for at least two types of time units respectively;

[0212] The first information is used to determine the spatial relationship of reference signal resources for at least two types of time units respectively.

[0213] Optionally, the antenna ports of the reference signal resources configured by the second communication device for different types of time units may be different.

[0214] Optionally, the spatial relationship includes a correspondence between the reference signal resources and other specific reference signals, where the specific reference signals include but are not limited to a downlink synchronization signal block (SSB), a CSI-RS, and other reference signals in an uplink bandwidth part (BWP). The spatial relationship of the reference signal resources configured by the second communication device for different types of time units may be different.

[0215] In a possible implementation, the first information is further used to determine one or more of the following reference signal resources for the at least two types of time units and the third type of time unit: usage, power control parameter, path loss, sequence identifier, group hop, or sequence hop.

[0216] Exemplary uses of reference signal resources include beam management, codebook-based uplink transmission, non-codebook uplink transmission, or antenna switching. That is, the reference signals carried by the reference signal resources can be used for beam management, codebook-based uplink transmission, non-codebook uplink transmission, or channel estimation and channel sounding during antenna switching. The power control parameters are used for reference signal transmission power control.

[0217] Exemplarily, the sequence identifier is used to determine the sequence of the reference signal, and group hopping or sequence hopping is used to determine whether different sequences are used in multiple reference signal transmissions.

[0218] In a possible implementation, when the reference signal is a CSI-RS and the reference signal resource is a CSI-RS reporting resource, the first information is further used to determine the reporting content of the CSI-RS reporting resource for at least two types of time units and a third type of time unit, respectively.

[0219] Exemplarily, the reported content includes a channel quality indicator (CQI), a precoding matrix indicator (PMI), or a layer indicator (LI). The function of the first information is described above. The specific implementation of the first information is described in detail below.

[0220] In one possible implementation, the first information includes configuration information of reference signal resources corresponding to at least two types of time units, and the configuration information of the reference signal resources includes first indication information, and the first indication information indicates the correspondence between the time units and the reference signal resources. Exemplarily, based on the example shown in FIG8 , the first information is RRC signaling, and the RRC signaling includes configuration information of SRS resource #1, SRS resource #2, and SRS resource #3. The configuration information of SRS resource #1 includes first indication information indicating the correspondence between OS1 and SRS #1 (i.e., the SRS resource corresponding to OS1 is SRS #1); the configuration information of SRS resource #2 includes first indication information indicating the correspondence between OS2 and SRS #2 (i.e., the SRS resource corresponding to OS2 is SRS #2); and the configuration information of SRS resource #3 includes first indication information indicating the correspondence between OS3 and SRS #3 (i.e., the SRS resource corresponding to OS3 is SRS #3).

[0221] Exemplarily, the first indication information may be type information of the time unit. For example, the configuration information of SRS resource #1 may include an identifier of SRS resource #1 and type information of OS1. The configuration information of SRS resource #1 may determine that the reference signal resource corresponding to OS1 is SRS resource #1.

[0222] Optionally, the configuration information of the reference signal resource may further include information for configuring at least one of a transmission type, time domain resources, frequency domain resources, or spatial domain resources.

[0223] In another possible implementation, the first information includes configuration information of at least two types of reference signal resources, but the configuration information of the reference signal resources does not indicate the corresponding relationship between the reference signal resources and the time units. In this case, the corresponding relationship between the reference signal resources and the time units can be determined in the following two ways.

[0224] Method 1: The second communication device further sends information to the first communication device to indicate the correspondence between the reference signal resources and the time units. As shown in FIG13 , after step S703, the method further includes step S704:

[0225] S704: The second communication device sends fourth information to the first communication device. Correspondingly, the first communication device receives the fourth information, wherein the fourth information indicates a correspondence between reference signal resources and time units.

[0226] As a possible implementation, the fourth information includes a correspondence between an index of a reference signal resource and an index of a time unit type.

[0227] For example, taking OS1 indexed as O1, OS2 indexed as O2, OS3 indexed as O3, SRS#1 indexed as S1, SRS#2 indexed as S2, and SRS#3 indexed as S3 as an example, assuming that {O1, S1} represents the correspondence between O1 and S1 (i.e., the SRS resource corresponding to OS1 is SRS#1), {O2, S2} represents the correspondence between O2 and S2 (i.e., the SRS resource corresponding to OS2 is SRS#2), and {O3, S3} represents the correspondence between O3 and S3 (i.e., the SRS resource corresponding to OS3 is SRS#3), when the first information includes configuration information of SRS#1, SRS#2 and SRS#3, the fourth information may include {O1, S1}, {O2, S2} and {O3, S3}, or, when the first information includes configuration information of SRS#1 and SRS#2, the fourth information may include {O1, S1} and {O2, S2}.

[0228] For example, taking OS1 indexed as O1, OS2 indexed as O2, OS3 indexed as O3, SRS#1 indexed as S1, SRS#2 indexed as S2, and SRS#3 indexed as S3 as an example, assuming that the protocol stipulates that S1 represents the correspondence between O1 and S1 (i.e., the SRS resource corresponding to OS1 is SRS#1), S2 represents the correspondence between O2 and S2 (i.e., the SRS resource corresponding to OS2 is SRS#2), and S3 represents the correspondence between O3 and S3 (i.e., the SRS resource corresponding to OS3 is SRS#3), when the first information includes configuration information of SRS#1, SRS#2, and SRS#3, the fourth information may include {S1, S2, S3}, or, when the first information includes configuration information of SRS#1 and SRS#2, the fourth information may include {S1, S2}.

[0229] As another possible implementation, the fourth information includes a first relationship identifier, where the first relationship identifier indicates a corresponding relationship between an index of a reference signal resource and an index of a time unit type.

[0230] For example, if the structure of time periods includes OS1, OS2, and OS3, with OS1 indexed as O1, OS2 indexed as O2, OS3 indexed as O3, SRS#1 indexed as S1, SRS#2 indexed as S2, and SRS#3 indexed as S3, the fourth information may include first relationship identifiers ID1, ID2, and ID3. ID1 indicates the corresponding relationship between O1 and S1, ID2 indicates the corresponding relationship between O2 and S2, and ID3 indicates the corresponding relationship between O3 and S3.

[0231] Optional. The meaning represented by ID is predefined by the protocol or configured by high-layer signaling.

[0232] Optionally, the fourth information may be carried in high-layer signaling (such as RRC, MAC CE) or physical layer signaling (such as DCI, SCI).

[0233] Mode 2: The correspondence between the time unit and the reference signal resource is determined based on the uplink frequency domain resources and / or downlink frequency domain resources corresponding to the time unit.

[0234] Optionally, the correspondence between the time unit and the reference signal resource can be determined based on whether the frequency domain resources of a certain type of reference signal resource are located in the uplink frequency domain resources and / or downlink frequency domain resources corresponding to a certain type of time unit, or whether they completely cover all uplink frequency domain resources and / or all downlink frequency domain resources corresponding to a certain type of time unit.

[0235] For example, the frequency domain resources of SRS resource #2 are not within the uplink frequency domain resources of OS1, so the SRS resource corresponding to OS1 is not SRS resource #2; the frequency domain resources of SRS resource #2 do not cover all uplink frequency domain resources of OS3, so the SRS resource corresponding to OS3 is not SRS resource #2; the frequency domain resources of SRS resource #2 are within the uplink frequency domain resources of OS2 and cover all uplink frequency domain resources of OS2, so the SRS resource corresponding to OS2 is SRS resource #2.

[0236] In addition to the above method, the present application also provides a communication method that can be used to schedule reference signals. As shown in Figure 14, the communication method includes the following steps:

[0237] S1401: A second communication device sends second information to a first communication device. Correspondingly, the first communication device receives the second information from the second communication device.

[0238] The second information is used to schedule one or more of the at least two types of reference signals. The at least two types of reference signals correspond to at least two types of time units. For example, there is a one-to-one correspondence between the at least two types of reference signals and the at least two types of time units, i.e., one type of reference signal corresponds to one type of time unit. The specific implementation of the at least two types of time units can be found in the description of the at least two types of time units in the method shown in FIG. 7 , and is not further described here.

[0239] In a possible implementation manner, when the time period further includes a third type of time unit, the one or more types of reference signals scheduled by the second information may include a third type of reference signal, and the third type of reference signal corresponds to the third type of time unit.

[0240] Optionally, the second information is scrambled using a special radio network temporary identifier (RNTI). The special RNTI may be different from a currently undefined RNTI.

[0241] Optionally, the second information is located in any one of the following: physical layer signaling such as downlink DCI, group common DCI, SCI, or high-layer signaling such as MAC CE.

[0242] Exemplarily, taking the second information being located in the MAC CE and the reference signal being SRS as an example, the second information is used to schedule one or more types of SRS among at least two types of SRS. It can be understood that the second information is used to activate and / or deactivate one or more types of SRS among at least two types of SRS.

[0243] If the reference signal is an uplink reference signal, such as SRS, after step S1401, as shown in (a) in Figure 14, the method may further include step S1402a; if the reference signal is a downlink reference signal, such as CSI-RS, after step S1401, as shown in (b) in Figure 14, the method may further include step S1402b.

[0244] S1402a: The first communication device sends one or more types of reference signals to the second communication device. Correspondingly, the second communication device receives the one or more types of reference signals from the first communication device.

[0245] Optionally, the first communications device transmits the one or more types of reference signals on one or more types of reference signal resources. Taking the example of one or more types of reference signals scheduled by the second information including reference signals corresponding to first-type time units, the first communications device transmits the reference signals corresponding to the first-type time units on the reference signal resources corresponding to the first-type time units.

[0246] Exemplarily, the reference signal resource corresponding to the time unit may be configured by the second communication device. The specific implementation and configuration of the reference signal resource may refer to the relevant description of the method shown in FIG. 7 above, and will not be repeated here. Of course, the reference signal resource may also be configured in other ways, without limitation.

[0247] S1402b: The second communication device sends one or more types of reference signals to the first communication device. Correspondingly, the first communication device receives one or more types of reference signals from the second communication device.

[0248] Optionally, the second communication device transmits the one or more types of reference signals on one or more types of reference signal resources. Taking the example where the one or more types of reference signals scheduled by the second information include reference signals corresponding to the first type of time unit, the second communication device transmits the reference signals corresponding to the first type of time unit on the reference signal resources corresponding to the first type of time unit.

[0249] Exemplarily, the reference signal resource corresponding to the time unit may be configured by the second communication device. The specific implementation and configuration of the reference signal resource may refer to the relevant description of the method shown in FIG. 7 above, and will not be repeated here. Of course, the reference signal resource may also be configured in other ways, without limitation.

[0250] Optionally, when the reference signal is CSI-RS, the first communication device receives one or more types of reference signals from the second communication device, and performs measurements on the one or more types of CSI-RS respectively, such as channel measurement and interference measurement, and then sends the above measurement results, such as CQI, PMI or LI, to the second communication device on the reporting resources corresponding to the one or more types of reference signals.

[0251] Exemplarily, the CSI-RS reporting resource may be configured by the second communication device. The specific implementation and configuration of the CSI-RS reporting resource may refer to the relevant description of the method shown in FIG. 7 above, and will not be repeated here. Of course, the CSI-RS reporting resource may also be configured in other ways, without limitation.

[0252] As a possible example, taking the second information as MAC CE or DCI and the reference signal as CSI-RS, the first communication device receives MAC CE or DCI from the second communication device, as well as CSI-RS#1 and CSI-RS#2 scheduled by MAC CE or DCI, and measures CSI-RS#1 and CSI-RS#2 respectively, and then sends the measurement result of CSI-RS#1 to the second communication device on the reporting resource #1 corresponding to CSI-RS#1, and sends the measurement result of CSI-RS#2 to the second communication device on the reporting resource #2 corresponding to CSI-RS#2.

[0253] Based on this solution, the second communication device schedules one or more types of reference signals from at least two types of reference signals. Since at least two types of reference signals correspond to at least two types of time units, and different types of time units correspond to uplink frequency domain resources of different sizes and / or positions, the second communication device can select appropriate time units from at least two types of time units for data transmission based on the uplink and downlink traffic required by the service. For example, when the uplink traffic required by the service is large, the second communication device can schedule a time unit with a larger corresponding uplink frequency domain resource for uplink data transmission. Since the uplink frequency domain resource corresponding to the time unit is large, the uplink data can be transmitted in a shorter time, thereby meeting the low latency requirement of the service and improving the user experience.

[0254] Optionally, as shown in FIG15 , before step S1401 , the communication method further includes step S1400:

[0255] S1400: The first communication device sends third information to the second communication device. Correspondingly, the second communication device receives the third information from the first communication device.

[0256] Among them, the third information indicates the time unit type supported by the first communication device, and / or the reference signal type corresponding to the time unit type supported by the first communication device, and the reference signal type corresponding to the time unit type supported by the first communication device includes one or more types of reference signals scheduled by the above-mentioned second information.

[0257] Exemplarily, a first communication device transmits third information to a second communication device, where the third information indicates that the first communication device supports OS1 and OS2, and / or the third information indicates that the first communication device supports reference signal type SRS#1 corresponding to OS1 and reference signal type SRS#2 corresponding to OS2. Accordingly, the second communication device receives the third information and, based on the received third information, transmits second information for scheduling SRS#1 and SRS#2 to the first communication device, where the reference signal type corresponding to OS1 is SRS#1 and the reference signal type corresponding to OS2 is SRS#2.

[0258] Optionally, the third information may be carried in high-layer signaling (such as RRC, MAC CE) or physical layer signaling (such as DCI, SCI).

[0259] Based on this scheme, the second communication device can determine the time unit type supported by the first communication device based on the third information, and / or determine the reference signal type corresponding to the time unit type supported by the first communication device, and then schedule the reference signal type corresponding to the time unit type supported by the first communication device, so as to avoid the second communication device scheduling the reference signal type corresponding to the time unit type not supported by the first communication device, resulting in waste of resources.

[0260] The above describes the overall process of the communication method provided in this application. The following is a detailed introduction to the specific implementation of the second information.

[0261] In one possible implementation, the second information includes at least one of the following: second indication information, reference signal requests corresponding to one or more types of reference signals, and / or a time domain offset indication. The second indication information indicates types of the one or more types of reference signals. The one or more types of reference signals are reference signals scheduled from at least two types of reference signals and a third type of reference signal.

[0262] As a possible implementation, when the second information is used to schedule a type of reference signal, the second indication information is carried in the first field, the first field includes at least one bit, and when the value of the first field is a preset value, the second information is used to schedule a type of reference signal corresponding to the preset value.

[0263] For example, based on the example shown in FIG. 8 , taking the case where the reference signals include a reference signal corresponding to OS#1 (denoted as SRS#1), a reference signal corresponding to OS#2 (denoted as SRS#2), and a reference signal corresponding to OS#3 (denoted as SRS#3), the first field may include 2 bits, and the reference signal types corresponding to different values ​​of these 2 bits may be as shown in Table 1. SRS#1 and SRS#2 are any two different types of reference signals from at least two types of reference signals, and SRS#3 is a third type of reference signal. As shown in Table 1, when the first field has a preset value of 00, it indicates that the second information is used to schedule SRS#1; when the first field has a preset value of 01, it indicates that the second information is used to schedule SRS#2; and when the first field has a preset value of 10, it indicates that the second information is used to schedule SRS#3.

[0264] Table 1

[0265] As another possible implementation, when the second information is used to schedule one or more types of reference signals, the second indication information is carried in a bitmap. The bitmap may include M bits, where M is the total number of reference signal types, and the M bits correspond one-to-one to the M types of reference signals; when the value of the first bit in the M bits is a preset value, the second information is used to schedule a type of reference signal corresponding to the first bit, and the first bit is any bit in the M bits. It should be noted that in an embodiment of the present application, the reference signal corresponding to a type of time unit can be understood as a type of reference signal. The reference signal corresponding to a certain type of time unit can be understood as a reference signal transmitted on that type of time unit.

[0266] Exemplarily, based on the example shown in FIG8 , the total number of time unit types is 3, and the total number of corresponding reference signal types is also 3. For example, the reference signal corresponding to OS#1 is denoted as SRS#1, the reference signal corresponding to OS#2 is denoted as SRS#2, and the reference signal corresponding to OS#3 is denoted as SRS#3, where SRS#1 and SRS#2 are any two different types of reference signals from at least two types of reference signals, and SRS#3 is a third type of reference signal. The bitmap includes three bits, the first bit corresponding to SRS#1, the second bit corresponding to SRS#2, and the third bit corresponding to SRS#3. When a bit has a value of 1 (i.e., a preset value of 1), it indicates that the type of reference signal corresponding to the bit is scheduled.

[0267] As a possible implementation, the reference signal request corresponding to a certain type of reference signal is used to indicate not to activate (or not schedule) this type of reference signal, or to activate (or trigger) this type of reference signal and which reference signal resource set to activate this type of reference signal.

[0268] Exemplarily, a reference signal resource set may include one or more reference signal resources, and the reference signal resource set may be preconfigured by the second communications apparatus. A reference signal request corresponding to a certain type of reference signal is used to activate a reference signal resource set for the reference signal of the certain type, indicating that the second communications apparatus has scheduled the reference signal of the certain type, and the reference signal of the certain type may be transmitted on the reference signal resources in the reference signal resource set.

[0269] As a possible implementation, the time domain offset indication corresponding to a certain type of reference signal is used to indicate the sending time of this type of reference signal, that is, to indicate how many time slots / symbols / certain type of symbols / mini-time slots the first communication device should wait to send the scheduled reference signal of this type after receiving the second information.

[0270] Optionally, a reference signal request and / or time domain offset indication corresponding to a certain type of reference signal may be carried in the second field. Exemplarily, the second field may be referred to as an activation field or a trigger field. As a possible implementation, when the second information is used to schedule a type of reference signal, the second information may include second indication information indicating the type of the reference signal and a second field corresponding to the reference signal.

[0271] For example, taking the second information used to schedule SRS#2 as an example, as shown in Figure 16, assuming that the second indication information is carried in the first field, the value of the first field is 01, indicating that the type of reference signal indicated by the second indication information is SRS#2. The second field is the second field corresponding to SRS#2, and the second field includes a reference signal request and / or a time domain offset indication corresponding to SRS#2. The reference signal request corresponding to SRS#2 indicates activation of a reference signal resource set corresponding to SRS#2, that is, the second field can indicate the location of SRS#2.

[0272] As another possible implementation, when the second information is used to schedule multiple types of reference signals, the second information includes second indication information indicating the types of the above-mentioned multiple types of reference signals and / or M second fields, the M second fields correspond one-to-one to the M types of reference signals, and the length of the second field corresponding to each type of reference signal is the same.

[0273] As an example, the second information may include second indication information and M second fields. In this case, the first communication device may parse the second fields corresponding to the multiple types of reference signals according to the types of the multiple types of reference signals indicated by the second indication information.

[0274] For example, as shown in Figure 17, using the second information used to schedule SRS#1 and SRS#3 as an example, the second information includes second indication information, second field #1 corresponding to SRS#1, second field #2 corresponding to SRS#2, and second field #3 corresponding to SRS#3. The second indication information is carried in a bitmap, which may include three bits: the first bit corresponds to SRS#1, the second bit corresponds to SRS#2, and the third bit corresponds to SRS#3. When a bit is 1 (i.e., the preset value is 1), it indicates that the type of reference signal corresponding to that bit is scheduled. When the bitmap is 101, the first communications device parses the second field corresponding to SRS#1 and the second field corresponding to SRS#3 from the second information to determine the positions of SRS#1 and SRS#3, and then sends or receives SRS#1 and SRS#3 at the corresponding positions.

[0275] As another example, the second information may include M second fields but not the second indication information. In this case, the first communications device may sequentially obtain the M second fields included in the second information. In this case, the reference signal request in the second field corresponding to a certain type of reference signal is used to indicate whether to activate the reference signal of that type, or to activate the reference signal of that type and in which reference signal resource set the reference signal of that type is activated. The first communications device may determine the type and location of the scheduled reference signal based on the M second fields.

[0276] For example, taking the second information used to schedule SRS#1 and SRS#3 as an example, the second information does not include the second indication information, and the second information includes the second field #1 corresponding to SRS#1, the second field #2 corresponding to SRS#2, and the second field #3 corresponding to SRS#3. The second field #1 includes a reference signal request #1 and a time domain offset indication #1, the second field #2 includes a reference signal request #2, and the second field #3 includes a reference signal request #3 and a time domain offset indication #3. Reference signal request #1 indicates activation of SRS#1 and activation of a reference signal resource set corresponding to SRS#1, reference signal request #2 indicates deactivation of SRS#2, reference signal request #3 indicates activation of SRS#3 and activation of a reference signal resource set corresponding to SRS3#, the first communication device can parse reference signal request #1, reference signal request #2 and reference signal request #3 in sequence, and can know that the second information is used to schedule SRS#1 and SRS#3, and further parse the time domain offset indication #1 corresponding to SRS#1 and the time domain offset indication #3 corresponding to SRS#3, determine the positions of SRS#1 and SRS#3, and then send or receive SRS#1 and SRS#3 at the corresponding positions.

[0277] As a possible implementation, when the second information is a group-common DCI, the second information further includes a transmit power control (TPC) command. The TPC command is a special command used for power control, and is used to adjust the power of a reference signal.

[0278] The above mainly introduces the solutions provided by this application. Accordingly, this application also provides a communication device, which is used to implement the various methods described above, or in other words, can implement the functions of the first communication device or the second communication device described above. The communication device can be the first communication device or the second communication device in the above method embodiments, or a component that can be used for the first communication device or the second communication device, such as a chip or a chip system.

[0279] It is understandable that, in order to realize the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, 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 the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0280] The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0281] 18 shows a schematic structural diagram of a communication device 180. The communication device 180 includes a processing module 1801 and a transceiver module 1802. The communication device 180 can be used to implement the functions of the first communication device or the second communication device described above.

[0282] In some embodiments, the communication device 180 may further include a storage module (not shown in FIG. 18 ) for storing program instructions and data.

[0283] In some embodiments, the transceiver module 1802, which may also be referred to as a transceiver unit, is configured to implement a transmitting and / or receiving function. The transceiver module 1802 may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0284] In some embodiments, the transceiver module 1802 may include a receiving module and a sending module, which are respectively used to execute the receiving and sending steps performed by the first communication device or the second communication device in the above method embodiments, and / or used to support other processes of the technology described herein; the processing module 1801 may be used to execute the processing steps (such as determination, etc.) performed by the first communication device or the second communication device in the above method embodiments, and / or used to support other processes of the technology described herein.

[0285] In some embodiments, when the communication device 180 is used to implement the functions of the first communication device, in a possible implementation:

[0286] Processing module 1801 is configured to determine the structure of a time period, where the time period includes at least two types of time units, and the frequency domain resources corresponding to the at least two types of time units include uplink frequency domain resources and downlink frequency domain resources; wherein the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different in size and / or position, and / or the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different in size and / or position, and the first type of time unit and the second type of time unit are any two different types of time units from the at least two types of time units. Transceiver module 1802 is configured to receive first information, where the first information is used to determine reference signal resources for the at least two types of time units.

[0287] Optionally, the transceiver module 1802 is further configured to receive fourth information, where the fourth information indicates a correspondence between reference signal resources and time units. In some embodiments, when the communication device 180 is configured to implement the functions of the first communication device, in another possible implementation:

[0288] Transceiver module 1802 is further configured to receive second information, the second information being used to schedule one or more of the at least two types of reference signals. The at least two types of reference signals correspond to at least two types of time units. The frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources. The uplink frequency domain resources corresponding to the first and second types of time units differ in size and / or position, and / or the downlink frequency domain resources corresponding to the first and second types of time units differ in size and / or position, and the first and second types of time units are any different types of time units from the at least two types of time units. Transceiver module 1802 is further configured to transmit the one or more types of reference signals.

[0289] Optionally, the transceiver module 1802 is also used to send third information, where the third information indicates the time unit type supported by the first communication device, and / or the third information indicates the reference signal type corresponding to the time unit type supported by the first communication device, and the reference signal type corresponding to the time unit type supported by the first communication device includes one or more types of reference signals.

[0290] In some embodiments, when the communication device 180 is used to implement the functions of the above-mentioned second communication device, in a possible implementation manner: the processing module 1801 is used to determine the structure of the time period, the time period includes at least two types of time units, and the frequency domain resources corresponding to the at least two types of time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units among the above-mentioned at least two types of time units. The transceiver module 1802 is used to send first information, and the first information is used to determine reference signal resources for the above-mentioned at least two types of time units respectively.

[0291] Optionally, the transceiver module 1802 is further configured to send fourth information, where the fourth information indicates a correspondence between reference signal resources and time units.

[0292] In some embodiments, when the communication device 180 is used to implement the functions of the second communication device, in another possible implementation:

[0293] The transceiver module 1802 is further configured to send second information, where the second information is used to schedule one or more of the at least two types of reference signals. The at least two types of reference signals correspond to at least two types of time units. The frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources. The uplink frequency domain resources corresponding to the first and second type of time units differ in size and / or position, and / or the downlink frequency domain resources corresponding to the first and second type of time units differ in size and / or position, and the first and second type of time units are any two different types of time units from the at least two types of time units. The transceiver module 1802 is further configured to receive the one or more types of reference signals.

[0294] Optionally, the transceiver module 1802 is also used to receive third information, where the third information indicates the time unit type supported by the first communication device, and / or the third information indicates the reference signal type corresponding to the time unit type supported by the first communication device, and the reference signal type corresponding to the time unit type supported by the first communication device includes one or more types of reference signals.

[0295] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0296] In the present application, the communication device 180 may be presented in the form of various functional modules divided in an integrated manner. The "module" here may refer to a specific application-specific integrated circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0297] In some embodiments, when the communication device 180 in Figure 18 is a chip or a chip system, the function / implementation process of the transceiver module 1802 can be implemented through the input and output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 1801 can be implemented through the processor (or processing circuit) of the chip or chip system.

[0298] Since the communication device 180 provided in this embodiment can execute the above method, the technical effects that can be obtained can refer to the above method embodiments and will not be repeated here.

[0299] As a possible product form, the first communication device or the second communication device in the embodiments of the present application can be implemented using the following: one or more field programmable gate arrays (FPGAs), programmable logic devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.

[0300] As another possible product form, the first communication device or the second communication device in the present application may adopt the structure shown in Figure 19, or include the components shown in Figure 19. Figure 19 is a schematic diagram of the structure of a communication device 190 provided in the present application.

[0301] As shown in FIG19 , the communication device 190 includes at least one processor 1901. Optionally, the communication device further includes a communication interface 1902.

[0302] When the program instructions are executed in the at least one processor 1901, the apparatus 190 may implement the communication method provided in any of the aforementioned embodiments and any possible designs thereof. Alternatively, the processor 1901 may implement the communication method provided in any of the aforementioned embodiments and any possible designs thereof through logic circuits or by executing code instructions.

[0303] The communication interface 1902 may be used to receive program instructions and transmit them to the processor. Alternatively, the communication interface 1902 may be used for communication between the communication device 190 and other communication devices, such as exchanging control signaling and / or service data. Exemplarily, the communication interface 1902 may be used to receive signals from devices other than the device 190 and transmit them to the processor 1901, or to send signals from the processor 1901 to other communication devices other than the device 190.

[0304] Optionally, the communication interface 1902 may be a code and / or data read and write interface circuit, or the communication interface 1902 may be a signal transmission interface circuit between a communication processor and a transceiver, or a pin of a chip.

[0305] Optionally, the communication device 190 may further include at least one memory 1903, which may be used to store required program instructions and / or data. It should be noted that the memory 1903 may exist independently of the processor 1901 or may be integrated with the processor 1901. The memory 1903 may be located within or outside the communication device 190, without limitation.

[0306] Optionally, the communication device 190 may further include a power supply circuit 1904, which may be used to supply power to the processor 1901. The power supply circuit 1904 may be located in the same chip as the processor 1901, or in another chip other than the chip where the processor 1901 is located.

[0307] Optionally, the communication device 190 may further include a bus 1905 , and various parts of the communication device 190 may be interconnected via the bus 1905 .

[0308] Optionally, the processor in the present application may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc.

[0309] Optionally, the memory in the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), or direct rambus RAM (DR RAM).

[0310] Optionally, the power supply circuit in the embodiment of the present application includes but is not limited to at least one of the following: a power supply line, a power supply subsystem, a power management chip, a power consumption management processor, or a power consumption management control circuit.

[0311] In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the communication device 180 shown in FIG. 18 may take the form of the communication device 190 shown in FIG. 19 .

[0312] As an example, the functions / implementation process of the processing module 1801 in FIG18 can be implemented by the processor 1901 in the communication device 190 shown in FIG19 calling the computer-executable instructions stored in the memory 1903. The functions / implementation process of the transceiver module 1802 in FIG18 can be implemented by the communication interface 1902 in the communication device 190 shown in FIG19.

[0313] It should be noted that the structure shown in FIG19 does not constitute a specific limitation on the first communication device or the second communication device. For example, in other embodiments of the present application, the first communication device or the second communication device may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0314] In some embodiments, an embodiment of the present application further provides a communication device, which includes a processor for implementing the method in any of the above method embodiments.

[0315] As a possible implementation, the communication device further includes a memory. The memory is used to store necessary computer programs and data. The computer program may include instructions, and the processor may invoke the instructions in the computer program stored in the memory to instruct the communication device to perform any of the above-described method embodiments. Of course, the memory may not be located in the communication device.

[0316] As another possible implementation, the communication device also includes an interface circuit, which is a code / data read / write interface circuit, and the interface circuit is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.

[0317] As another possible implementation, the communication device further includes a communication interface, which can be used to communicate with a module outside the communication device.

[0318] It can be understood that the communication device can be a chip or a chip system. When the communication device is a chip system, it can be composed of chips or include chips and other discrete devices. The embodiments of the present application do not specifically limit this.

[0319] The present application also provides a computer-readable storage medium having a computer program or instruction stored thereon, which implements the functions of any of the above method embodiments when executed by a computer.

[0320] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0321] Those skilled in the art will appreciate that, for the sake of convenience and brevity of description, the specific working processes of the above-described systems, devices, and units may refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0322] It is understood that the systems, devices, and methods described in this application may also be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be through some interface, indirect coupling or communication connection of devices or units, and may be electrical, mechanical, or other forms.

[0323] The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Components shown as units may or may not be physical units. Some or all of these units may be selected to achieve the objectives of this embodiment as needed.

[0324] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0325] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may 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 instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more media integrated therein. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). In the embodiment of the present application, the computer may include the aforementioned device.

[0326] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0327] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A communication method, characterized in that: The method comprises: Determine a structure of a time period, wherein the time period includes at least two types of time units, and the frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units among the at least two types of time units; First information is sent, where the first information is used to determine reference signal resources for the at least two types of time units respectively.

2. A communication method, characterized in that: The method comprises: Determine a structure of a time period, wherein the time period includes at least two types of time units, and the frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units among the at least two types of time units; First information is received, where the first information is used to determine reference signal resources for the at least two types of time units respectively.

3. The method according to claim 1 or 2, characterized in that: The reference signal resources include sounding reference signal SRS resources and / or channel state information reference signal CSI-RS resources.

4. The method according to any one of claims 1 to 3, characterized in that: The first information is used to determine reference signal resources for the at least two types of time units, respectively, and includes one or more of the following: The first information is used to determine the transmission type of the reference signal resource for the at least two types of time units respectively; The first information is used to determine time domain resources of reference signal resources for the at least two types of time units respectively; The first information is used to determine frequency domain resources of reference signal resources for the at least two types of time units respectively; The first information is used to determine spatial resources of reference signal resources for the at least two types of time units respectively.

5. The method according to claim 4, characterized in that The first information is used to determine the transmission type of the reference signal resource for the at least two types of time units, respectively, including: The first information is used to determine the transmission type of the reference signal resource for the at least two types of time units, respectively, as one or more of the following: periodic transmission, semi-static transmission, and non-periodic transmission.

6. The method according to claim 5, characterized in that The period of the periodic transmission, the non-periodic transmission or the semi-static transmission includes a slot-level period and / or a symbol-level period.

7. The method according to claim 5, characterized in that The first information is used to determine that the period of the reference signal resource for the at least two types of time units is a time slot level period; and / or, The first information is used to determine that the period of the reference signal resource for the at least two types of time units is a symbol-level period.

8. The method according to any one of claims 4 to 7, characterized in that: The first information is used to determine time domain resources of reference signal resources for the at least two types of time units, respectively, and includes one or more of the following: The first information is used to determine the number of duration units occupied by reference signal resources for the at least two types of time units respectively; The first information is used to determine the time domain starting position or the time domain ending position of the reference signal resource for the at least two types of time units respectively; The first information is used to determine the number of repetitions of the reference signal resource for the at least two types of time units respectively.

9. The method according to any one of claims 4 to 7, characterized in that: The first information is used to determine frequency domain resources of reference signal resources for the at least two types of time units, respectively, and includes one or more of the following: The first information is used to determine the frequency domain starting positions of the reference signal resources for the at least two types of time units respectively; The first information is used to determine transmission comb teeth of reference signal resources for the at least two types of time units respectively; The first information is used to determine frequency hopping parameters of reference signal resources for the at least two types of time units respectively.

10. The method according to any one of claims 4 to 9, characterized in that: The first information is used to determine the spatial resources of the reference signal resources for the at least two types of time units, respectively, and includes one or more of the following: The first information is used to determine antenna ports of reference signal resources for the at least two types of time units respectively; The first information is used to respectively determine the spatial relationship of reference signal resources for the at least two types of time units.

11. The method according to any one of claims 1 to 10, characterized in that: The reference signal resource is a CSI-RS resource, and the CSI-RS resource includes a CSI-RS measurement resource and / or a CSI-RS reporting resource; the first information is used to determine the reference signal resources for the at least two types of time units, respectively, and includes one or more of the following: The first information is used to determine CSI-RS measurement resources for the at least two types of time units respectively; The first information is used to determine CSI-RS reporting resources for the at least two types of time units respectively.

12. The method according to any one of claims 1 to 11, characterized in that: The first information is also used to determine one or more of the following reference signals for the at least two types of time units: purpose, power control parameter, path loss, sequence identifier, group hopping or sequence hopping.

13. The method according to any one of claims 1 to 12, characterized in that: The first information includes configuration information of reference signal resources corresponding to the at least two types of time units respectively, and the configuration information of the reference signal resources includes first indication information, and the first indication information indicates a correspondence between the time unit and the reference signal resource.

14. The method according to any one of claims 1 to 12, characterized in that: The first information includes configuration information of at least two types of reference signal resources; The correspondence between the time unit and the reference signal resource is determined based on the uplink frequency domain resource and / or the downlink frequency domain resource corresponding to the time unit.

15. A communication method, characterized in that: The method comprises: Sending second information, where the second information is used to schedule one or more types of reference signals among at least two types of reference signals, where the at least two types of reference signals correspond to at least two types of time units, and the frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units among the at least two types of time units; The one or more types of reference signals are received.

16. The method according to claim 15, characterized in that The method further comprises: Receive third information, wherein the third information indicates a time unit type supported by the first communication device and / or a reference signal type corresponding to the time unit type supported by the first communication device, wherein the reference signal type corresponding to the time unit type supported by the first communication device includes the one or more types of reference signals.

17. A communication method, characterized in that: The method comprises: Receive second information, where the second information is used to schedule one or more types of reference signals among at least two types of reference signals, where the at least two types of reference signals correspond to at least two types of time units, and the frequency domain resources corresponding to the time units include uplink frequency domain resources and downlink frequency domain resources; wherein the size and / or position of the uplink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and / or the size and / or position of the downlink frequency domain resources corresponding to the first type of time unit and the second type of time unit are different, and the first type of time unit and the second type of time unit are any two different types of time units among the at least two types of time units; The one or more types of reference signals are sent.

18. The method according to claim 17, characterized in that The method further comprises: Send third information, wherein the third information indicates a time unit type supported by the first communication device, and / or the third information indicates a reference signal type corresponding to the time unit type supported by the first communication device, wherein the reference signal type corresponding to the time unit type supported by the first communication device includes the one or more types of reference signals.

19. The method according to any one of claims 15 to 18, characterized in that: The second information includes second indication information, where the second indication information indicates types of the one or more types of reference signals.

20. The method according to claim 19, characterized in that The second indication information is carried in a bit map, the bit map includes M bits, M is the total number of types of the at least two types of reference signals, and the M bits correspond one-to-one to the M types of reference signals; When the value of the first bit in the M bits is a preset value, the second information is used to schedule a type of reference signal corresponding to the first bit, and the first bit is any bit in the M bits.

21. The method according to claim 19, characterized in that The second indication information is carried in a first field, the first field includes at least one bit, and when the value of the first field is a preset value, the second information is used to schedule a type of reference signal corresponding to the preset value.

22. The method according to any one of claims 15 to 21, characterized in that: The second information includes reference signal requests and / or time domain offset indications respectively corresponding to the one or more types of reference signals.

23. The method according to any one of claims 15 to 22, characterized in that: The second information is scrambled using a special radio network temporary identifier RNTI.

24. The method according to any one of claims 15 to 23, characterized in that: The second information is located in any one of the following: downlink control information DCI, group common DCI, sidelink control information SCI or media access control MAC control element CE signaling.

25. A communication method, characterized in that: include: Determine a first type of time unit and a second type of time unit, the first type of time unit corresponds to a first frequency resource, the second type of time unit corresponds to a second frequency resource, the size of the first frequency resource is different from the size of the second frequency resource, and / or the position of the first frequency resource is different from the position of the second frequency resource, and / or the size and position of the first frequency resource are different from the size and position of the second frequency resource; Sending first information, where the first information is used to determine a first reference signal resource for the first type of time unit, and / or, the first information is used to determine a second reference signal resource for the second type of time unit.

26. A communication method, characterized in that: include: Determine a first type of time unit and a second type of time unit, the first type of time unit corresponds to a first frequency resource, the second type of time unit corresponds to a second frequency resource, the size of the first frequency resource is different from the size of the second frequency resource, and / or the position of the first frequency resource is different from the position of the second frequency resource, and / or the size and position of the first frequency resource are different from the size and position of the second frequency resource; First information is received, where the first information is related to a first reference signal resource determined for the first type of time unit and / or the first information is related to a second reference signal resource determined for the second type of time unit.

27. The method according to claim 25 or 26, characterized in that The first type of time unit includes a first type of uplink frequency domain resources and a first type of downlink frequency resources, and / or the second type of time unit includes a second type of uplink frequency domain resources and a second type of downlink frequency resources.

28. The method according to any one of claims 25 to 27, characterized in that: The reference signal resources include sounding reference signal SRS resources and / or channel state information reference signal CSI-RS resources.

29. The method according to any one of claims 25 to 28, characterized in that: The first reference signal resource corresponds to a first transmission type of reference signal resources, and the second reference signal resource corresponds to a second transmission type of reference signal resources; and / or The first reference signal resource corresponds to a first time domain resource of a reference signal resource, and the first reference signal resource corresponds to a second time domain resource of a reference signal resource; and / or The first reference signal resource corresponds to a first frequency domain resource of a reference signal resource, and the second reference signal resource corresponds to a second frequency domain resource of a reference signal resource; and / or The first reference signal resource corresponds to a first spatial domain resource of a reference signal resource, and the second reference signal resource corresponds to a second spatial domain resource of a reference signal resource.

30. The method according to claim 29, characterized in that The first transmission type or the second transmission type is periodic transmission, semi-static transmission or non-periodic transmission.

31. The method according to claim 30, characterized in that The period of the periodic transmission, the non-periodic transmission or the semi-static transmission includes a slot-level period and / or a symbol-level period.

32. The method according to any one of claims 25 to 31, characterized in that: The first information is used to determine the number of first duration units occupied by the first reference signal resource and the number of second duration units occupied by the second reference signal resource; and / or The first information is used to determine a time domain starting position or a time domain ending position of the first reference signal resource, and a time domain starting position or a time domain ending position of the second reference signal resource; and / or The first information is used to determine the number of repetitions of the first reference signal resource and the number of repetitions of the second reference signal resource.

33. The method according to any one of claims 25 to 31, characterized in that: The first information is used to determine a frequency domain starting position of the first reference signal resource and a frequency domain starting position of the second reference signal resource; and / or The first information is used to determine the transmission comb teeth of the first reference signal resource and the transmission comb teeth of the second reference signal resource; and / or The first information is used to determine a frequency hopping parameter of the first reference signal resource and a frequency hopping parameter of the second reference signal resource.

34. The method according to any one of claims 25 to 31, characterized in that: The first information is used to determine an antenna port of the first reference signal resource and an antenna port of the second reference signal resource; and / or The first information is used to determine a spatial relationship between the first reference signal resources and a spatial relationship between the second reference signal resources.

35. The method according to any one of claims 25 to 34, characterized in that The reference signal resource is a CSI-RS resource, and the CSI-RS resource includes a CSI-RS measurement resource and / or a CSI-RS reporting resource.

36. The method according to any one of claims 25 to 35, characterized in that The first information is also used to determine one or more of the following aspects of the first reference signal for the first type of time unit: purpose, power control parameter, path loss, sequence identifier, group hop or sequence hop.

37. The method according to any one of claims 25 to 35, characterized in that: The first information includes configuration information of first-type reference signal resources corresponding to the first-type time units, and configuration information of second-type reference signal resources corresponding to the second-type time units.

38. The method according to claim 37, characterized in that The correspondence between the first-type time units and the first-type reference signal resources is determined based on uplink frequency domain resources and / or downlink frequency domain resources corresponding to the first-type time units.

39. A communication device, characterized in that: The method comprises a module or a unit for executing the method as claimed in any one of claims 1 to 38.

40. A communication device, characterized in that: The communication device comprises a processor; the processor is configured to run a computer program or instructions so that the communication device executes the method according to any one of claims 1 to 38.

41. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instruction, and when the computer program or instruction is executed by a computer, the computer executes the method according to any one of claims 1 to 38.

42. A computer program product, characterized in that The computer program product comprises a computer program or instructions, and when the computer program or instructions are run on a computer, the computer is caused to perform the method according to any one of claims 1 to 38.

43. A chip, characterized in that: The chip includes a processor, and the chip is used to execute program instructions in the memory to perform the method as described in any one of claims 1-38.

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