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

Abstract

The present application provides a communication method, apparatus and device, a chip, a storage medium, a product, and a program. The method comprises: a first device receives first information, the first information being used for configuring a first pilot signal, and at least some of time-frequency resources occupied by the first pilot signal being used for transmitting a data signal.

Description

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

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

[0002] In related technologies, pilot signals and data signals occupy different time-frequency resources, meaning they are orthogonally placed on the time-frequency resources. However, given a fixed total time-frequency resource allocation, when the terminal device moves at a high speed, improving channel estimation performance often requires pilot signals to occupy more time-frequency resources, resulting in a reduction in the time-frequency resources occupied by the data signal, thus reducing the data signal transmission rate.

[0003] Summary of the Invention

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

[0005] In a first aspect, the communication method provided by the embodiments of the present application includes:

[0006] The first device receives first information, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0007] In a second aspect, the communication method provided by the embodiments of the present application includes:

[0008] The second device sends first information to the first device, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0009] In a third aspect, an embodiment of the present application provides a communication apparatus, applied to a first device, comprising:

[0010] The first receiving unit is configured to receive first information, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0011] In a fourth aspect, an embodiment of the present application provides a communication apparatus, applied to a second device, comprising:

[0012] The second sending unit is configured to send first information to the first device, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0013] In a fifth aspect, an embodiment of the present application provides a communication device, comprising a processor and a memory. The memory is configured to store computer-executable instructions, and the processor is connected to the memory and configured to implement the communication method of the first or second aspect by executing the computer-executable instructions.

[0014] In a sixth aspect, the chip provided in an embodiment of the present application is used to implement the communication method of the first aspect or the second aspect mentioned above.

[0015] Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the communication method of the first aspect or the second aspect mentioned above.

[0016] In the seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by at least one processor, implements the communication method of the first aspect or the second aspect mentioned above.

[0017] In an eighth aspect, an embodiment of the present application provides a computer program product, which includes a computer storage medium storing a computer program, and the computer program includes instructions that can be executed by at least one processor, and when the instructions are executed by at least one processor, the communication method of the first or second aspect above is implemented.

[0018] In the ninth aspect, the computer program provided in the embodiment of the present application, when running on a computer, enables the computer to execute the communication method of the first aspect or the second aspect mentioned above.

[0019] An embodiment of the present application provides a communication method, in which a first device can receive first information, the first information being used to configure a first pilot signal, wherein at least a portion of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal. Thus, after receiving the first signal, the first device can learn that the first pilot signal to be configured occupies at least a portion of the same time-frequency resources as the data signal. Thus, if the first pilot signal occupies more time-frequency resources, at least a portion of the time-frequency resources occupied by the first pilot signal can also be occupied by the data signal, thereby increasing the time-frequency resources occupied by the data signal and improving the transmission rate and reliability of the data signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] FIG1 is a schematic diagram of a communication architecture;

[0022] FIG2A is a schematic diagram of a scenario 1 of a demodulation reference signal of one symbol;

[0023] FIG2B is a schematic diagram of a scenario 1 of a demodulation reference signal with two symbols;

[0024] FIG3A is a second schematic diagram of a scenario of a demodulation reference signal of one symbol;

[0025] FIG3B is a schematic diagram of a second scenario of a demodulation reference signal with two symbols;

[0026] FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

[0027] FIG5 is a schematic diagram of a scenario of time-frequency resources for transmitting pilot signals and data signals provided in an embodiment of the present application;

[0028] FIG6 is a second schematic diagram of a scenario of time-frequency resources for transmitting pilot signals and data signals provided by an embodiment of the present application;

[0029] FIG7 is a third schematic diagram of a scenario of time-frequency resources for transmitting a pilot signal and a data signal provided by an embodiment of the present application;

[0030] FIG8 is a schematic diagram of a scenario 1 of a frequency domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0031] FIG9 is a second schematic diagram of a scenario of a frequency domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0032] FIG10 is a third schematic diagram of a scenario of a frequency domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0033] FIG11 is a fourth schematic diagram of a scenario of a frequency domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0034] FIG12 is a schematic diagram of a scenario 1 of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0035] FIG13 is a second schematic diagram of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0036] FIG14 is a schematic diagram of a third scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0037] FIG15 is a fourth schematic diagram of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0038] FIG16 is a fifth schematic diagram of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0039] FIG17 is a sixth schematic diagram of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0040] FIG18 is a seventh schematic diagram of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0041] FIG19 is a schematic diagram of a scenario eight of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0042] FIG20 is a ninth schematic diagram of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0043] FIG21 is a schematic diagram of a scenario ten showing the time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0044] FIG22 is a schematic diagram 11 of a scenario of a time domain position of a pilot signal occupying time-frequency resources provided by an embodiment of the present application;

[0045] FIG23 is a schematic diagram of the structure of a communication device 2300 provided in an embodiment of the present application;

[0046] FIG24 is a schematic diagram of the structure of a communication device 2400 provided in an embodiment of the present application;

[0047] FIG25 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0048] FIG26 is a schematic structural diagram of a chip provided in an embodiment of the present application;

[0049] Figure 27 is a schematic block diagram of a communication system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0051] FIG1 is a schematic diagram of a communication architecture.

[0052] As shown in Figure 1, a communication system 100 may include a terminal device 110 and a network device 120. The network device 120 may communicate with the terminal device 110 via an air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0053] It should be understood that the embodiments of the present application are only illustrative of the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0054] In the communication system 100 shown in Figure 1, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area and may communicate with the terminal device 110 located within the coverage area.

[0055] The network device 120 may be an evolved Node B (eNB or eNodeB) in an LTE system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0056] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0057] For example, the terminal device 110 may refer to an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0058] The terminal device 110 can be used for device-to-device (D2D) communication.

[0059] FIG1 exemplarily shows a network device and two terminal devices. It should be understood that the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0060] It should be noted that FIG1 is only an example of a system to which this application is applicable. Of course, the method shown in the embodiment of this application can also be applied to other systems. In addition, the terms "system" and "network" are often used interchangeably in this article.

[0061] It should be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0062] It should also be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0063] It should also be understood that the "correspondence" mentioned in the embodiments of the present application may indicate a direct or indirect correspondence between the two, or an association between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0064] It should also be understood that the “predefined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), and the present application does not limit its specific implementation method. For example, predefined can refer to what is defined in the protocol. It should also be understood that in the embodiments of the present application, the “protocol” may refer to a standard protocol in the field of communications, for example, it may include LTE protocols, NR protocols, and related protocols used in future communication systems, and the present application does not limit this.

[0065] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0066] In related technologies, the basic workflow of a wireless communication system may include the following steps:

[0067] At the transmitting end, the bit stream information to be transmitted is channel coded to obtain the coded bit information; the coded bit information is modulated to obtain modulation symbols; the modulation symbols and demodulation reference signals (DMRS) are inserted into the corresponding time-frequency resources, and then after subsequent processing, orthogonal frequency division multiplexing (OFDM) symbols, single-carrier frequency division multiple access (SC-FDMA) symbols, or other forms of multi-carrier symbols can be obtained.

[0068] It should be understood that the above process is based on the OFDM and SC-FDMA systems as examples and can also be applied to other systems, which is not limited in the embodiments of the present application.

[0069] Exemplarily, in the process of modulating the encoded bits to obtain modulation symbols, one or more of the following may be used: binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), 64QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, and 4096QAM.

[0070] Exemplarily, the modulation symbols and DMRS signals are inserted into corresponding resource elements (RE).

[0071] At the receiving end, the receiver measures the DMRS signal channel estimation, demodulates the modulated symbols, and performs channel decoding to obtain the bit information transmitted by the sending end.

[0072] It should be understood that the above steps can be combined and iterated, and the above order does not necessarily have to be strictly followed. For example, the information obtained by decoding can be used for channel estimation and / or for modulation symbol demodulation.

[0073] It should be noted that the basic working process of the wireless communication system is similar regardless of downlink transmission (DL transmission), uplink transmission (UL transmission) or sidelink transmission (SL transmission).

[0074] Exemplarily, downlink transmission may be transmission from a network device to a terminal device, uplink transmission may be transmission from a terminal device to a network device, and sidelink transmission may be transmission between terminal devices.

[0075] It should also be noted that in order to obtain the bit information transmitted by the transmitting end, the receiving end needs to use the DMRS signal.

[0076] Due to the complexity and time-varying nature of wireless channel environments, the receiver's estimation and recovery of wireless channels directly impacts the ultimate data recovery performance. In traditional communication systems, for control channels (i.e., channels that transmit control information), DMRS signals are relatively fixed. That is, the density and / or pattern of DMRS signals do not need to change dynamically. In this case, the design of DMRS signals is relatively conservative, adapting to various wireless channel environments. In wireless communication systems, for data channels (i.e., channels that transmit data), different DMRS signal densities and / or patterns are often designed to reduce DMRS signal overhead, allowing the DMRS signal to be configured or indicated based on the current wireless channel environment.

[0077] The following is a brief introduction using the data DMRS signal in the NR communication system as an example.

[0078] In the NR communication system, DMRS signals can be divided into front-loaded DMRS signals (also known as front-loaded DMRS signals) and post-loaded DMRS signals (also known as additional DMRS signals).

[0079] For example, for high-speed UEs, in order to improve the channel estimation performance, some DMRS signals are added on the basis of the front DMRS signal. For example, the high-speed UE can send an additional DMRS signal at a certain position in the rear part of the allocated time domain resources, so as to obtain the rear DMRS signal.

[0080] It should be noted that the pre-DMRS signal is typically located in the first few OFDM symbols of a time slot, and the post-DMRS signal pattern is a repetition of the pre-DMRS signal (for example, using the same frequency domain resources, or the same number of OFDM symbols) to ensure performance in high-speed scenarios. The pre-DMRS signal can contain one or two OFDM symbols, which is configured by the network equipment.

[0081] It should also be noted that NR can support two different DMRS signal types, Type 1 and Type 2. Different types of DMRS signals occupy resources in different ways. The following uses an example where a small grid represents one RE, 12 subcarriers in the frequency domain resources form one resource block (RB), and 7 symbols in the time domain resources, and combines Figures 2A to 3B to illustrate the two different DMRS signal types.

[0082] As shown in Figures 2A and 2B, two code division multiplexing (CDM) groups can be supported on one symbol (e.g., OFDM symbol) of each physical resource block (PRB), and each CDM group includes 6 subcarriers; wherein the first CDM group is carried by the first type of RE, and the second CDM group is carried by the second type of RE. Each CDM group can support two ports, and the two ports are orthogonalized by an orthogonal cover code (OCC). That is, the OCC code used by one port is [+1 +1 +1 +1 +1 +1], and the OCC code used by the other port is [+1 -1 +1 -1 +1 -1].

[0083] Exemplarily, as shown in FIG2A , a maximum of four orthogonal ports can be supported on one symbol.

[0084] For example, as shown in FIG2B , a maximum of eight orthogonal ports can be supported on two symbols, and a time domain orthogonal cover code (TD-OCC) can be used between the two symbols. For example, the first CDM group of the first symbol includes ports {1000, 1001}, and the second CDM group of the first symbol includes ports {1002, 1003}; the first CDM group of the second symbol includes ports {1004, 1005}, and the second CDM group of the second symbol includes ports {1006, 1007}.

[0085] As shown in Figures 3A and 3B, three CDM groups can be supported on one symbol in each PRB. Each CDM group contains four adjacent subcarriers. The first CDM group is carried by the first type of REs, the second by the second type of REs, and the third by the third type of REs. Each CDM group can support two ports, and the two ports are orthogonalized by OCC. That is, the OCC code used by one port is [+1 +1 +1 +1], and the OCC code used by the other port is [+1 -1 +1 -1].

[0086] Exemplarily, as shown in FIG3A , a maximum of 6 orthogonal ports can be supported on one symbol.

[0087] For example, as shown in FIG3B , a maximum of 12 orthogonal ports can be supported on two symbols, and TD-OCC is used between the two symbols. For example, the first CDM group of the first symbol includes ports {1000, 1001}, the second CDM group of the first symbol includes ports {1002, 1003}, and the third CDM group of the first symbol includes ports {1004, 1005}; the first CDM group of the second symbol includes ports {1006, 1007}, the second CDM group of the second symbol includes ports {1008, 1009}, and the third CDM group of the second symbol includes ports {1010, 1011}.

[0088] In the embodiments of the present application, RE, RB and symbols are mentioned many times. RE, RB and symbols are briefly described below.

[0089] RE: The smallest time-frequency resource unit in a wireless communication system. For example, in NR or LTE systems, one RE in the frequency domain corresponds to one subcarrier, and one RE in the time domain corresponds to one symbol.

[0090] RB: can be for K consecutive subcarriers in the frequency domain. In addition, in some systems, RB can also be for K consecutive subcarriers in the frequency domain and for M consecutive symbols in the time domain.

[0091] Exemplarily, the value of K may be one or more of 8, 12, and 16, or other values, which is not limited in the embodiments of the present application.

[0092] Exemplarily, the value of M can be one or more of 6, 7, 13, and 14, or other values, which is not limited in the embodiments of the present application.

[0093] It should be noted that in the embodiment of the present application, no distinction is made between RB and PRB, and the RB and PRB in the embodiment of the present application are collectively referred to as PRB.

[0094] Symbol: The symbol in the embodiment of the present application can be an OFDM symbol, an SC-FDMA symbol, or other forms of multi-carrier symbols, which is not limited in the embodiment of the present application.

[0095] It should be noted that the SC-FDMA symbol can also be called a discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-SOFDM) symbol, or the SC-FDMA symbol can also be called a multi-carrier symbol using a transform precoder (Transform Precoder), or the SC-FDMA symbol can also be called an OFDM symbol using a transform precoder.

[0096] In related technologies, pilot signals and data signals occupy different time-frequency resources. Pilot signals and data signals are placed orthogonally on the time-frequency resources, and there is no overlap between the pilot signals and data signals on the time-frequency resources. In other words, a pilot signal or a data signal can be placed on a time-frequency resource, but not both. However, when the total time-frequency resources are fixed and the terminal device is moving at a high speed, in order to improve the channel estimation performance, the pilot signal is often required to occupy more time-frequency resources, resulting in a reduction in the time-frequency resources occupied by the data signal, thereby reducing the data signal transmission rate and transmission reliability.

[0097] Based on this, an embodiment of the present application provides a communication method, in which a first device can receive first information, the first information being used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal being used to transmit a data signal. In this way, after receiving the first signal, the first device can learn that the first pilot signal to be configured occupies at least part of the same time-frequency resources as the data signal. In this way, if the first pilot signal occupies more time-frequency resources, at least part of the time-frequency resources occupied by the first pilot signal can also be occupied by the data signal, thereby increasing the time-frequency resources occupied by the data signal and improving the transmission rate and transmission reliability of the data signal.

[0098] It should be noted that in a Code Division Multiple Access (CDMA) system, although the pilot signal and the data signal can be transmitted on the same time-frequency resources, both the pilot signal and the data signal need to undergo additional spread spectrum processing. For example, the pilot signal and the data signal need to use different orthogonal codes to distinguish them. The embodiments of the present application are mainly used in OFDM systems / SC-FDMA systems, as well as other systems based on multiple sub-carriers. The modulation symbols of the data signal (such as QPSK, and 16QAM) and the modulation symbols of the demodulation pilot signal can be directly transmitted on the same time-frequency resources, and the pilot signal and the data signal do not need to undergo additional spread spectrum processing.

[0099] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0100] FIG4 is a flow chart of a communication method provided in an embodiment of the present application. As shown in FIG4 , the method may include the following steps.

[0101] S410. A first device receives first information, where the first information is used to configure a first pilot signal. At least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0102] Accordingly, the second device may send the first information to the first device.

[0103] It should be noted that, in the embodiment of the present application, the first device may be a first terminal device; the second device may be a second terminal device or a network device, and the embodiment of the present application does not limit this.

[0104] For example, in an embodiment of the present application, the pilot signal may be a DMRS signal, a channel state information reference signal (CSI-RS), a phase tracking reference signal (PT-RS), etc., and the embodiment of the present application is not limited to this.

[0105] It should be noted that the data signal mentioned in the embodiments of the present application, unless otherwise specified (for example, specifically referring to a data channel), can be data that needs to be transmitted (for example, data passed from the upper layer to the physical layer, service data, etc.), or control information (for example, physical layer downlink control information, physical layer uplink control information, etc.), and the embodiments of the present application do not limit this.

[0106] Exemplarily, the data signal can be transmitted through one or more of the following channels: Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Sidelink Shared Channel (PSSCH), Physical Downlink Control Channel (PDCCH), Physical Uplink Control Channel (PUCCH), Physical Sidelink Control Channel (PSCCH), Physical Sidelink Feedback Channel (PSFCH), etc., which is not limited to the embodiments of the present application.

[0107] It should be noted that at least part of the time-frequency resources can be one time-frequency resource, multiple time-frequency resources (not all time-frequency resources), or all time-frequency resources. This embodiment of the present application does not limit this.

[0108] It should also be noted that at least some of the time-frequency resources occupied by the first pilot signal are used to transmit data signals. This means that one or more or all of the time-frequency resources occupied by the first pilot signal are also time-frequency resources occupied by data signals, that is, one or more or all of the time-frequency resources occupied by the first pilot signal are also used for data signal transmission. To simplify the description, at least some of the time-frequency resources may be referred to as shared time-frequency resources.

[0109] It should also be noted that at least part of the time-frequency resources occupied by the first pilot signal are used to transmit data signals. It can be understood that at least part of the time-frequency resources occupied by the data signal are used to transmit the first pilot signal.

[0110] Exemplarily, taking PDSCH transmission as an example, it is assumed that 8 symbols scheduled by the network device are used on the time domain resources and 12 subcarriers (i.e., 96 REs) are used on the frequency domain resources for the transmission of data signals. As shown in Figure 5, all REs can be used for the transmission of the first pilot signal and the data signal; as shown in Figure 6, the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol can be used for the transmission of the first pilot signal and the data signal, and other REs can be used for the transmission of the data signal. It should be understood that in the embodiment of the present application, REs can be used for the transmission of the first pilot signal and the data signal, that is, the REs occupied by the first pilot signal can be used for the transmission of the data signal at the same time.

[0111] In some embodiments, the first information may be configured for one or more of the following objects:

[0112] Cell;

[0113] carrier wave;

[0114] Bandwidth Part (BWP);

[0115] Physical downlink shared channel PDSCH;

[0116] Physical downlink control channel PDCCH;

[0117] Physical uplink shared channel PUSCH;

[0118] Physical uplink control channel PUCCH;

[0119] Physical sidelink shared channel PSSCH;

[0120] Physical side control channel PSCCH;

[0121] Physical Sideline Feedback Channel PSFCH.

[0122] Furthermore, the first information may be information in configuration information of a cell; or,

[0123] The first information is information in configuration information of a carrier; or,

[0124] The first information is information in the configuration information of a BWP; or,

[0125] The first information is information in configuration information of a PDSCH; or,

[0126] The first information is information in configuration information of a PDCCH; or,

[0127] The first information is information in PUSCH configuration information; or,

[0128] The first information is information in the configuration information of a PUCCH; or,

[0129] The first information is information in the configuration information of a PSSCH; or,

[0130] The first information is information in the configuration information of a PSCCH; or,

[0131] The first information is information in the configuration information of a PSFCH.

[0132] By using this method, the first information is configured based on one or more of the above objects, and different configuration granularities can be obtained, thereby satisfying different flexibility.

[0133] In some embodiments, the first device may receive a corresponding data signal or send a corresponding data signal according to the first information.

[0134] It should be noted that, if the first device receives the corresponding data signal based on the first information, it can determine the first pilot signal based on the first information and receive the corresponding data signal; if it sends the corresponding data signal, it can determine the first pilot signal based on the first information and send the corresponding data signal.

[0135] It should also be noted that for the transmission of uplink data signals and the reception of downlink data signals, the first device can receive two first information, one of which corresponds to the transmission of uplink data signals and the other corresponds to the reception of downlink data signals.

[0136] Furthermore, the number of first information can be extended to multiple, so that multiple uplink data signals can be sent and / or downlink data signals can be received; or, different uplink signals / channels can be sent and / or different downlink signals / channels can be received.

[0137] In some embodiments, the second device may send second information to the first device, where the second information is used to configure a second pilot signal. The time-frequency resources occupied by the second pilot signal are not used to transmit data signals, i.e., the RE used by the second pilot signal cannot be used for corresponding data signal transmission.

[0138] Accordingly, the first device may receive the second information.

[0139] It should be noted that the time-frequency resources occupied by the second pilot signal are not used to transmit data signals. This means that the time-frequency resources occupied by the second pilot signal are different from those occupied by the data signal. In other words, the time-frequency resources occupied by the second pilot signal and the data signal do not share any shared time-frequency resources, and the time-frequency resources occupied by the second pilot signal are orthogonal to those occupied by the data signal.

[0140] For example, as shown in FIG7 , the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol can be used for transmission of the second pilot signal, and the other REs can be used for transmission of data signals.

[0141] In some embodiments, the first information and / or the second information may be carried by first signaling, and the first signaling may include one or more of the following:

[0142] Broadcast messages;

[0143] System messages;

[0144] Radio Resource Control (RRC) signaling;

[0145] Media Access Control Element (MAC CE) signaling;

[0146] Downlink Control Information (DCI);

[0147] Random access message; and,

[0148] Dedicated signaling.

[0149] Furthermore, the first information and the second information may be carried by the first signaling, which may include: the first information and the second information may be carried by different first signalings. For example, in a certain configuration, the first signaling may carry the first information, and in another configuration, the first signaling may carry the second information.

[0150] Exemplarily, the broadcast message may be a Master Information Block (MIB) message.

[0151] Exemplarily, the system message may be a system information block type 1 (System Information Block Type 1, SIB1), a system information block (System Information Block, SIB), etc., which is not limited in the embodiments of the present application.

[0152] Exemplarily, the random access message may be a downlink message in the random access process. For example, the random access message may be message (Message, Msg) B, Msg2, Msg4, etc., which is not limited in the embodiment of the present application.

[0153] Exemplarily, the dedicated signaling may be artificial intelligence (AI) / machine learning (ML) dedicated signaling, etc., which is not limited in the embodiments of the present application.

[0154] It should be noted that the first information and / or the second information may be carried by a first signaling obtained by the same signaling. For example, the first information and / or the second information may be carried by a single RRC signaling; when both the first information and the second information are carried by a single RRC signaling, the different information contents carried by the single RRC signaling may correspond to the first information and the second information, respectively.

[0155] Furthermore, the first information and / or the second information can be carried by a first signaling obtained by combining multiple signals of the same type. For example, the first signaling can correspond to multiple MAC CE signalings, and the first information and the second information can be carried by different MAC CE signalings; for another example, part of the first information can be carried by one MAC CE signaling, and the other part can be carried by another MAC CE signaling; for another example, part of the second information can be carried by one RRC signaling, and the other part can be carried by another RRC signaling.

[0156] It should be noted that the first information and / or the second information may be carried by first signaling obtained by different types of signaling. For example, part of the first information may be carried by a broadcast message, and another part may be carried by a DCI; for another example, part of the second information may be carried by a system message, and another part may be carried by a random access message; for another example, the first information may be carried by RRC signaling, and the second information may be carried by DCI.

[0157] In some embodiments, the first signaling may include first indication information, where the first indication information is used to indicate that the first signaling carries the first information and / or the second information.

[0158] Exemplarily, different values ​​of the first indication information may be used to indicate that the first signaling carries the first information and / or the second information. For example, taking the first indication information occupying 2 bits as an example, when the value of the first indication information is "01", the first indication information indicates that the first signaling carries the first information; when the value of the first indication information is "10", the first indication information indicates that the first signaling carries the second information; when the value of the first indication information is "11", the first indication information indicates that the first signaling carries the first information and the second information.

[0159] In some other embodiments, the first signaling may include a first information field and a second information field, the first information field is used to carry the first information, and the second information field is used to carry the second information.

[0160] It should be noted that the first signaling can be based on the CHOICE structure. By configuring different information fields (such as the first information field and the second information field), the information carried by different information fields can be determined (such as the first information field carries the first information and the second information field carries the second information).

[0161] In the embodiment of the present application, when at least part of the time-frequency resources occupied by the first pilot signal are used to transmit data signals, the first device may use a receiver to demodulate the data signal.

[0162] Exemplarily, the receiver may be an iterative receiver, an AI / ML receiver, etc., which is not limited in the embodiments of the present application.

[0163] It should be noted that the receiver can use various algorithms such as deep learning. For example, the receiver can use one or a combination of fully convolutional neural networks (FCN), convolutional neural networks (CNN), recurrent neural networks (RNN), and transformer neural network architectures.

[0164] It should be understood that the premise for using a receiver to demodulate the data signal is that the first device needs to know the corresponding configuration of the first pilot signal. Otherwise, the receiver will not adapt to the actual received data signal, resulting in performance degradation. Based on this, the first device can receive the first information and, based on the first information, learn the corresponding configuration of the first pilot signal. Furthermore, the first device can learn the corresponding configuration of the first pilot signal through one or more of the following methods indicated by the first information.

[0165] Method #A: The first information may indicate a power parameter of the first pilot signal.

[0166] It should be noted that the "power" mentioned in the embodiments of the present application can also be directly expanded to "energy".

[0167] Through this method, after receiving the first information, the first device can flexibly indicate the power allocation of the first pilot signal, so that the system can optimize the transmission power of the first pilot signal according to the wireless environment, thereby improving system performance.

[0168] In some embodiments, the power parameter of the first pilot signal may include one or more of the following:

[0169] a ratio of the power of the first pilot signal sent on the first time-frequency resource to the total power on the second time-frequency resource;

[0170] a ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource;

[0171] a ratio of the power of the first pilot signal sent on the first time-frequency resource to the power of the data signal sent on the first time-frequency resource; and

[0172] The ratio of the power of the data signal sent on the first time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource.

[0173] Based on this, the power parameter of the first pilot signal may be implemented in the following ways:

[0174] In a possible implementation, the power parameter of the first pilot signal may be a ratio of the power of the first pilot signal sent on the first time-frequency resource to the total power of the first pilot signal on the second time-frequency resource.

[0175] The first time-frequency resource is any one of at least some of the time-frequency resources.

[0176] It should be noted that, when the first time-frequency resource is any one of at least some of the time-frequency resources, the first time-frequency resource can be considered as a shared time-frequency resource.

[0177] It should also be noted that the total power on the second time-frequency resource may be the sum of the power of the first pilot signal sent on the second time-frequency resource and the power of the data signal sent on the second time-frequency resource.

[0178] It should also be noted that the second time-frequency resource can be any one of at least some of the time-frequency resources, in which case the second time-frequency resource can be considered a shared time-frequency resource; the second time-frequency resource may not be any one of at least some of the time-frequency resources, or in other words, the second time-frequency resource can be any one of the other time-frequency resources except at least some of the time-frequency resources, in which case the second time-frequency resource can be considered not a shared time-frequency resource.

[0179] In some embodiments, the second time-frequency resource may be any one of at least some of the time-frequency resources.

[0180] Furthermore, when the second time-frequency resource is any one of at least some of the time-frequency resources, the second time-frequency resource and the first time-frequency resource may be the same time-frequency resource or may not be the same time-frequency resource, and this embodiment of the present application does not limit this.

[0181] Exemplarily, as shown in FIG5 , the power parameter of the first pilot signal may be the ratio of the power of the first pilot signal transmitted on any RE to the total power on any RE, where any RE is a shared RE. For example, if the total power on one of the REs is 1 and the power of the first pilot signal transmitted on the RE is 0.2, then the ratio of the power of the first pilot signal transmitted on one of the REs to the total power on the RE is 0.2. If converted to a dB value, the ratio of the power of the first pilot signal transmitted on one of the REs to the total power on the RE is -7dB. For another example, if the total power on one of the REs is 1 and the power of the first pilot signal transmitted on another RE is 0.3, then the ratio of the power of the first pilot signal transmitted on the other RE to the total power on one of the REs is 0.3. If converted to a dB value, the ratio of the power of the first pilot signal transmitted on the other RE to the total power on one of the REs is -5dB.

[0182] For example, as shown in Figure 6, the power parameter of the first pilot signal can be the ratio of the power sent by the first pilot signal on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol. At this time, any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol is a shared RE, and other REs are not shared REs.

[0183] In other embodiments, the second time-frequency resource may be any one of other time-frequency resources except at least part of the time-frequency resources.

[0184] For example, as shown in Figure 6, the power parameter of the first pilot signal can be the ratio of the power sent by the first pilot signal on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on any other RE. At this time, any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol is a shared RE, and any other RE is not a shared RE. For example, the total power on one of the other REs is 1, and the power of the first pilot signal sent on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol is 0.5. Then the ratio of the power of the first pilot signal sent on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on one of the other REs is 0.5; if converted into a dB value, the ratio of the power of the first pilot signal sent on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on one of the other REs is -3dB.

[0185] Exemplarily, when the ratio is a linear value, the candidate values ​​of the ratio may be one or more of the following values: {0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.15, 0.20, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9}.

[0186] Exemplarily, when the ratio is a dB value, the candidate values ​​of the ratio may be one or more of the following values: {-1dB, -2dB, -3dB, -4dB, -5dB, -6dB, -7dB, -8dB, -9dB, -10dB, -11dB, -12dB, -13dB, -14dB, -15dB, -16dB, -17dB, -18dB, -19dB, -20dB}.

[0187] It should be noted that the power parameter of the first pilot signal may also be the ratio of the total power on the second time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource.

[0188] Furthermore, the power parameter of the first pilot signal is the ratio of the total power on the second time-frequency resource to the power sent by the first pilot signal on the first time-frequency resource, and the power parameter of the first pilot signal is the ratio of the power sent by the first pilot signal on the first time-frequency resource to the total power on the second time-frequency resource: when these two ratios are linear values, the candidate values ​​of the two ratios are reciprocals of each other; when the two ratios are dB values, the candidate values ​​of the two ratios are opposites of each other.

[0189] It should be noted that, when the ratio is a linear value, the indication of the first information can be simplified.

[0190] It should also be noted that when the ratio is a dB value, the first information can indicate a more subtle power difference.

[0191] Through this method, the first information can directly indicate the proportion of total power (such as the first information indicates the ratio of the power sent by the first pilot signal on the first time-frequency resource to the total power on the second time-frequency resource), thereby simplifying the calculation of the power parameters of the first pilot signal.

[0192] In another possible implementation, the power parameter of the first pilot signal may be a ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource.

[0193] The first time-frequency resource is any one of at least some of the time-frequency resources.

[0194] It should be noted that, when the first time-frequency resource is any one of at least some of the time-frequency resources, the first time-frequency resource can be considered as a shared time-frequency resource.

[0195] It should also be noted that the total power on the second time-frequency resource may be the sum of the power of the first pilot signal sent on the second time-frequency resource and the power of the data signal sent on the second time-frequency resource.

[0196] It should also be noted that the second time-frequency resource can be any one of at least some of the time-frequency resources, in which case the second time-frequency resource can be considered a shared time-frequency resource; the second time-frequency resource may not be any one of at least some of the time-frequency resources, or in other words, the second time-frequency resource can be any one of the other time-frequency resources except at least some of the time-frequency resources, in which case the second time-frequency resource can be considered not a shared time-frequency resource.

[0197] In some embodiments, the second time-frequency resource may be any one of at least some of the time-frequency resources.

[0198] Furthermore, when the second time-frequency resource is any one of at least some of the time-frequency resources, the second time-frequency resource and the first time-frequency resource may be the same time-frequency resource or may not be the same time-frequency resource, and this embodiment of the present application does not limit this.

[0199] Exemplarily, as shown in Figure 5, the power parameter of the first pilot signal can be the ratio of the power of the data signal sent on any RE to the total power on any RE, where any RE is a shared RE. For example, if the total power on one of the REs is 1 and the power of the data signal sent on the RE is 0.8, then the ratio of the power of the data signal sent on one of the REs to the total power on the RE is 0.8. If converted into a dB value, the ratio of the power of the data signal sent on one of the REs to the total power on the RE is -1dB. For another example, if the total power on one of the REs is 1 and the power of the data signal sent on another RE is 0.7, then the ratio of the power of the data signal sent on the other RE to the total power on one of the REs is 0.7. If converted into a dB value, the ratio of the power of the data signal sent on the other RE to the total power on one of the REs is -2dB.

[0200] For example, as shown in Figure 6, the power parameter of the first pilot signal can be the ratio of the power of the data signal sent on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol. At this time, any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol is a shared RE, and other REs are not shared REs.

[0201] In other embodiments, the second time-frequency resource may be any one of other time-frequency resources except at least part of the time-frequency resources.

[0202] For example, as shown in FIG6 , the power parameter of the first pilot signal may be the ratio of the power of the data signal transmitted on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, or 10th subcarriers in symbol 0 to the total power of any RE of the other REs. In this case, any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, or 10th subcarriers in symbol 0 is a shared RE, and the other REs are not shared REs. For example, if the total power of one of the other REs is 1 and the power of the data signal transmitted on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, or 10th subcarriers in symbol 0 is 0.5, then the ratio of the power of the data signal transmitted on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, or 10th subcarriers in symbol 0 to the total power of one of the other REs is 0.5. If converted to a dB value, the ratio of the power of the data signal transmitted on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, or 10th subcarriers in symbol 0 to the total power of one of the other REs is -3 dB.

[0203] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0204] It should also be noted that the power parameter of the first pilot signal may also be the ratio of the total power on the second time-frequency resource to the power of the data signal sent on the first time-frequency resource.

[0205] Furthermore, the power parameter of the first pilot signal is the ratio of the total power on the second time-frequency resource to the power of the data signal sent on the first time-frequency resource, and the power parameter of the first pilot signal is the ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource: when these two ratios are linear values, the candidate values ​​of the two ratios are reciprocals of each other; when the two ratios are dB values, the candidate values ​​of the two ratios are opposites of each other.

[0206] It should be noted that, when the ratio is a linear value, the indication of the first information can be simplified.

[0207] It should also be noted that when the ratio is a dB value, the first information can indicate a more subtle power difference.

[0208] Through this method, the first information can directly indicate the proportion of the total power, thereby simplifying the calculation of the power parameter of the first pilot signal.

[0209] In another possible implementation, the power parameter of the first pilot signal may be a ratio of the power of the first pilot signal sent on the first time-frequency resource to the power of the data signal sent on the first time-frequency resource.

[0210] The first time-frequency resource is any one of at least some of the time-frequency resources.

[0211] It should be noted that, when the first time-frequency resource is any one of at least some of the time-frequency resources, the first time-frequency resource can be considered as a shared time-frequency resource.

[0212] Exemplarily, as shown in Figure 5, the power parameter of the first pilot signal may be the ratio of the power of the first pilot signal sent on any RE to the power of the data signal sent on the RE, where any RE is a shared RE. For example, if the power of the first pilot signal sent on one of the REs is 1, and the power of the data signal sent on the RE is 2, then the ratio of the power of the first pilot signal sent on one of the REs to the power of the data signal sent on the RE is 0.5. If converted to a dB value, the ratio of the power of the first pilot signal sent on one of the REs to the power of the data signal sent on the RE is -3dB.

[0213] Exemplarily, as shown in Figure 6, the power parameter of the first pilot signal can be the ratio of the power of the first pilot signal sent on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the power of the data signal sent on the RE. At this time, any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol is a shared RE, and other REs are not shared REs.

[0214] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0215] It should be noted that, when the ratio is a linear value, the indication of the first information can be simplified.

[0216] It should also be noted that when the ratio is a dB value, the first information can indicate a more subtle power difference.

[0217] Through this method, compared with the first information directly indicating the proportion of total power, the first information indicates the ratio of the power of the first pilot signal sent on the first time-frequency resource to the power of the data signal sent on the first time-frequency resource, which can make the dynamic value range of the power parameter of the first pilot signal smaller, thereby improving the granularity of the indication and reducing the overhead of the indication.

[0218] In another possible implementation, the power parameter of the first pilot signal may be a ratio of the power of the data signal sent on the first time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource.

[0219] The first time-frequency resource is any one of at least some of the time-frequency resources.

[0220] It should be noted that, when the first time-frequency resource is any one of at least some of the time-frequency resources, the first time-frequency resource can be considered as a shared time-frequency resource.

[0221] Exemplarily, as shown in Figure 5, the power parameter of the first pilot signal can be the ratio of the power of the data signal sent on any RE to the power of the first pilot signal sent on that RE, where any RE is a shared RE. For example, if the power of the data signal sent on one of the REs is 2, and the power of the first pilot signal sent on that RE is 1, then the ratio of the power of the data signal sent on one of the REs to the power of the first pilot signal sent on that RE is 2. If converted to a dB value, the ratio of the power of the data signal sent on one of the REs to the power of the first pilot signal sent on that RE is 3dB.

[0222] For example, as shown in Figure 6, the power parameter of the first pilot signal can be the ratio of the power of the data signal sent on any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the power of the first pilot signal sent on the RE. At this time, any RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol is a shared RE, and other REs are not shared REs.

[0223] It should be noted that, when the ratio is a linear value and a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0224] It should also be noted that the power parameter of the first pilot signal is the ratio of the power of the data signal sent on the first time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource, and the power parameter of the first pilot signal is the ratio of the power of the first pilot signal sent on the first time-frequency resource to the power of the data signal sent on the first time-frequency resource: when these two ratios are linear values, the candidate values ​​of the two ratios are reciprocals of each other; when the two ratios are dB values, the candidate values ​​of the two ratios are opposite to each other (for example, a dB becomes -a dB).

[0225] It should be noted that, when the ratio is a linear value, the indication of the first information can be simplified.

[0226] It should also be noted that when the ratio is a dB value, the first information can indicate a more subtle power difference.

[0227] Through this method, compared with the first information directly indicating the proportion of total power, the first information can make the dynamic value range of the power parameter of the first pilot signal smaller by indicating the ratio of the power of the data signal sent on the first time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource, thereby improving the granularity of the indication and reducing the overhead of the indication.

[0228] Method #B: The first information may indicate the frequency domain position of the time-frequency resources occupied by the first pilot signal.

[0229] Through this method, the first information indicates the frequency domain position of the time-frequency resources occupied by the first pilot signal, so that the first device can flexibly change the frequency domain position of the time-frequency resources occupied by the first pilot signal after receiving the first information, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0230] In the embodiment of the present application, the frequency domain position of the time-frequency resource occupied by the first pilot signal may be implemented in the following ways:

[0231] In one possible implementation, the first information may indicate the frequency domain density of the time-frequency resources occupied by the first pilot signal, and the frequency domain position of the time-frequency resources occupied by the first pilot signal may be determined based on the frequency domain density of the time-frequency resources occupied by the first pilot signal.

[0232] In this embodiment of the present application, the frequency domain density of the time-frequency resources occupied by the first pilot signal may include: the frequency domain RE density of the time-frequency resources occupied by the first pilot signal, and / or the frequency domain RB density of the time-frequency resources occupied by the first pilot signal.

[0233] When the frequency domain density of the time-frequency resources occupied by the first pilot signal is the RE density of the time-frequency resources occupied by the first pilot signal, the RE density of the time-frequency resources occupied by the first pilot signal may be the RE density of the time-frequency resources occupied by the first pilot signal within one RB. The RE density of the time-frequency resources occupied by the first pilot signal within one RB may be a first value, and there is a mapping relationship between the first value and the number of REs of the time-frequency resources occupied by the first pilot signal within one RB.

[0234] Furthermore, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0235] In some embodiments, when the first value is less than or equal to 1, the number of REs of the time-frequency resources occupied by the first pilot signal within an RB range is the product of the first value and the total number of REs within the RB range.

[0236] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, and the RE density of the time-frequency resources occupied by the first pilot signal within the RB range is 1 / 2 (that is, the first value is 1 / 2), then it can be obtained that the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range is 12*1 / 2=6.

[0237] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, and the RE density of the time-frequency resources occupied by the first pilot signal within the RB range is 1 (that is, the first value is 1), then it can be obtained that the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range is 12.

[0238] In some other embodiments, when the first value is greater than 1, the number of REs of the time-frequency resources occupied by the first pilot signal within one RB range is equal to the first value.

[0239] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, and the RE density of the time-frequency resources occupied by the first pilot signal within the RB range is 6 (that is, the first value is 6), then it can be obtained that the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range is 6.

[0240] Through this method, when the frequency domain density of the time-frequency resources occupied by the first pilot signal is the RE density of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the RE density of the time-frequency resources occupied by the first pilot signal according to the wireless environment, so as to better match the current channel and improve system performance.

[0241] When the frequency domain density of the time-frequency resources occupied by the first pilot signal is the RB density of the time-frequency resources occupied by the first pilot signal, the RB density of the time-frequency resources occupied by the first pilot signal may be a second value. Assuming that one RB in every X RBs is used to transmit the first pilot signal, there is a mapping relationship between the second value and the value of X, where X is a positive integer.

[0242] Furthermore, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0243] In some embodiments, when the second value is less than or equal to 1, the value of X is the reciprocal of the second value.

[0244] Exemplarily, assuming that the RB density of the time-frequency resources occupied by the first pilot signal is 0.5 (ie, the second value is 0.5), the value of X is 1 / 0.5=2, that is, one RB in every two RBs is used to transmit the first pilot signal.

[0245] Exemplarily, assuming that the RB density of the time-frequency resources occupied by the first pilot signal is 1 (ie, the second value is 1), the value of X is 1, that is, each RB is used to transmit the first pilot signal.

[0246] In other embodiments, when the second value is greater than 1, the value of X is equal to the second value.

[0247] Exemplarily, assuming that the RB density of the time-frequency resources occupied by the first pilot signal is 2 (ie, the second value is 2), the value of X is 2, that is, one RB in every two RBs is used to transmit the first pilot signal.

[0248] It should be noted that, at least part of REs in an RB of time-frequency resources occupied by the first pilot signal are used to transmit the first pilot signal.

[0249] Furthermore, the at least part of the REs may be one RE in an RB, or multiple REs in an RB (not all REs in an RB), or all REs in an RB, which is not limited in the embodiments of the present application.

[0250] Through this method, when the frequency domain density of the time-frequency resources occupied by the first pilot signal is the RB density of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can change the RB density of the time-frequency resources occupied by the first pilot signal with a larger granularity according to the wireless environment, which is more flexible and more conducive to multi-user multiplexing, reducing pilot signal interference between multiple users.

[0251] In another possible implementation, the first information may indicate the frequency domain offset value of the time-frequency resources occupied by the first pilot signal, and the frequency domain position of the time-frequency resources occupied by the first pilot signal may be determined based on the frequency domain offset value of the time-frequency resources occupied by the first pilot signal.

[0252] In this embodiment of the present application, the frequency domain offset value of the time-frequency resources occupied by the first pilot signal may include: the RE offset value of the time-frequency resources occupied by the first pilot signal, and / or the RB offset value of the time-frequency resources occupied by the first pilot signal.

[0253] When the frequency domain offset value of the time-frequency resources occupied by the first pilot signal is the RE offset value of the time-frequency resources occupied by the first pilot signal, the RE of the time-frequency resources occupied by the first pilot signal within the RB range can be obtained based on the RE offset value of the time-frequency resources occupied by the first pilot signal and the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range.

[0254] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, the RE offset value of the time-frequency resources occupied by the first pilot signal is offset_RE, and the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range is Y, then the identifiers (or positions, similar to other places, and no further description is given) of the REs of the time-frequency resources occupied by the first pilot signal within the RB range are: offset_RE, offset_RE+12 / Y, offset_RE+2*12 / Y, offset_RE+3*12 / Y, etc.; where Y is a positive integer.

[0255] For example, as shown in Figure 8, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, taking Y=6 and offset_RE=0 as an example, the time-frequency resources occupied by the first pilot signal are identified by the REs within the RB range: 0, 2, 4, 6, 8, and 10 respectively.

[0256] For another example, as shown in Figure 9, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, taking Y=6 and offset_RE=1 as an example, the time-frequency resources occupied by the first pilot signal are identified by the REs within the RB range: 1, 3, 5, 7, 9, and 11 respectively.

[0257] It should be noted that the examples shown in Figures 8 and 9 are all based on one symbol. It should be understood that the examples shown based on Figures 8 and 9 can also be directly extended to multiple symbols, and this embodiment of the present application will not be further described.

[0258] Through this method, when the frequency domain offset value of the time-frequency resources occupied by the first pilot signal is the RE offset value of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the RE (or subcarrier) allocation of the time-frequency resources occupied by the first pilot signal, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0259] When the frequency domain offset value of the time-frequency resources occupied by the first pilot signal is the RB offset value of the time-frequency resources occupied by the first pilot signal, the RB of the time-frequency resources occupied by the first pilot signal can be obtained according to the RB offset value of the time-frequency resources occupied by the first pilot signal and the value of X (one RB in every X RBs is used to transmit the first pilot signal).

[0260] For example, assuming that the RB offset value of the time-frequency resource occupied by the first pilot signal is offset_RB, the identifiers (or positions, which are similar in other places and will not be repeated here) of the RBs of the time-frequency resources occupied by the first pilot signal are: offset_RB, offset_RB+X, offset_RB+2*X, offset_RB+3*X, and so on.

[0261] For example, as shown in FIG10 , taking X=2 and offset_RB=0 as an example, the identifiers of the RBs of the time-frequency resources occupied by the first pilot signal are 0, 2, and 4, respectively.

[0262] For another example, as shown in FIG11 , taking X=2 and offset_RB=1 as an example, the identifiers of the RBs of the time-frequency resources occupied by the first pilot signal are 1, 3, and 5 respectively.

[0263] It should be noted that the examples shown in Figures 10 and 11 are all based on one symbol. It should be understood that the examples shown based on Figures 10 and 11 can also be directly extended to multiple symbols, and this embodiment of the present application will not be further described.

[0264] It should also be noted that, in the embodiment of the present application, the identification of the RB can be in the following two ways:

[0265] The first type: The RB identifier is the internal identifier of the RB actually used for transmission (or scheduling). For example, among multiple RBs actually used for transmission, the identifiers of the multiple RBs can be sorted from smallest to largest, thereby obtaining the 0th RB, the 1st RB, the 2nd RB, and so on. For example, as shown in Figure 10, there are six RBs actually used for transmission, and the identifiers of the six RBs are 0, 1, 2, 3, 4, and 5, respectively.

[0266] Second: The RB identifier is the identifier of the RB in the system or within the BWP. For example, the i-th RB corresponds to the RB identifier in the system or within the BWP. For example, assuming there are four RBs used for transmission in the system, and these four RBs are identified as 2, 3, 4, and 5, as shown in Figure 10, the identifiers of the RBs used to transmit the first pilot signal are 2 and 4, respectively; as shown in Figure 11, the identifiers of the RBs used to transmit the first pilot signal are 3 and 5, respectively.

[0267] Through this method, when the frequency domain offset value of the time-frequency resources occupied by the first pilot signal is the RB offset value of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the RB allocation of the time-frequency resources occupied by the first pilot signal, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0268] In another possible implementation, the first information may indicate a frequency domain pattern of the time-frequency resources occupied by the first pilot signal, and the frequency domain position of the time-frequency resources occupied by the first pilot signal may be determined based on the frequency domain pattern of the time-frequency resources occupied by the first pilot signal.

[0269] In this embodiment of the present application, the frequency domain pattern of the time-frequency resources occupied by the first pilot signal may include: the RE pattern of the time-frequency resources occupied by the first pilot signal, and / or the RB pattern of the time-frequency resources occupied by the first pilot signal.

[0270] In a case where the frequency domain pattern of the time-frequency resources occupied by the first pilot signal is the RE pattern of the time-frequency resources occupied by the first pilot signal, the RE pattern may be determined by a predefined rule and / or network device configuration.

[0271] For example, Figures 8 and 9 may be RE patterns determined by predefined rules and / or network device configuration, and the RE pattern of the time-frequency resources occupied by the first pilot signal may be one of the RE patterns shown in Figure 8 and the RE pattern shown in Figure 9. Figures 8 and 9 take one symbol as an example and may be extended to multiple symbols.

[0272] For example, assuming that the RE pattern of the time-frequency resources occupied by the first pilot signal is the RE pattern shown in Figure 8, the identifiers of the REs of the time-frequency resources occupied by the first pilot signal within an RB range are: 0, 2, 4, 6, 8, 10, respectively, and the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range is 6.

[0273] For example, assuming that the RE pattern of the time-frequency resources occupied by the first pilot signal is the RE pattern shown in Figure 9, the identifiers of the REs of the time-frequency resources occupied by the first pilot signal within an RB range are: 1, 3, 5, 7, 9, 11, respectively, and the number of REs of the time-frequency resources occupied by the first pilot signal within the RB range is 6.

[0274] Through this method, when the frequency domain pattern of the time-frequency resources occupied by the first pilot signal is the RE pattern of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the RE (or subcarrier) allocation of the time-frequency resources occupied by the first pilot signal, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0275] In a case where the frequency domain pattern of the time-frequency resources occupied by the first pilot signal is an RB pattern of the time-frequency resources occupied by the first pilot signal, the RB pattern may be determined by a predefined rule and / or network device configuration.

[0276] Exemplarily, Figures 10 and 11 may be RB patterns determined by predefined rules and / or network device configuration, and the RB pattern of the time-frequency resources occupied by the first pilot signal may be one of the RB patterns shown in Figure 10 and the RB patterns shown in Figure 11.

[0277] Exemplarily, assuming that the RB pattern of the time-frequency resources occupied by the first pilot signal is the RB pattern shown in FIG10 , the identifiers of the RBs of the time-frequency resources occupied by the first pilot signal are 0, 2, and 4, respectively.

[0278] Exemplarily, assuming that the RB pattern of the time-frequency resources occupied by the first pilot signal is the RB pattern shown in FIG11 , the identifiers of the RBs of the time-frequency resources occupied by the first pilot signal are 1, 3, and 5, respectively.

[0279] Through this method, when the frequency domain pattern of the time-frequency resources occupied by the first pilot signal is the RB pattern of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the RB allocation of the time-frequency resources occupied by the first pilot signal, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0280] Based on the foregoing possible implementations, the frequency domain position of the time-frequency resource occupied by the first pilot signal may be determined according to one or more of the following parameters indicated by the first information:

[0281] Frequency domain density of time-frequency resources occupied by the first pilot signal;

[0282] A frequency domain offset value of the time-frequency resource occupied by the first pilot signal; and

[0283] The frequency domain pattern of the time-frequency resources occupied by the first pilot signal.

[0284] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain density of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RE density of the time-frequency resource occupied by the first pilot signal, in which case the RE offset value of the time-frequency resource occupied by the first pilot signal can be determined by a predefined rule and / or a network device configuration; and / or the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RB density of the time-frequency resource occupied by the first pilot signal, in which case the RB offset value of the time-frequency resource occupied by the first pilot signal can be determined by a predefined rule and / or a network device configuration.

[0285] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain offset value of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RE offset value of the time-frequency resource occupied by the first pilot signal, in which case the RE density of the time-frequency resource occupied by the first pilot signal can be determined by predefined rules and / or network device configuration; and / or, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RB offset value of the time-frequency resource occupied by the first pilot signal, in which case the RB density of the time-frequency resource occupied by the first pilot signal can be determined by predefined rules and / or network device configuration.

[0286] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on one or more of the following: the RE pattern of the time-frequency resource occupied by the first pilot signal; and the RB pattern of the time-frequency resource occupied by the first pilot signal.

[0287] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain density and frequency domain offset value of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RE density and / or RB density of the time-frequency resource occupied by the first pilot signal, and the RE offset value and / or RB offset value of the time-frequency resource occupied by the first pilot signal.

[0288] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain density and frequency domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RE density and / or RB density of the time-frequency resource occupied by the first pilot signal, as well as the RE pattern and / or RB pattern of the time-frequency resource occupied by the first pilot signal.

[0289] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain offset value and frequency domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RE offset value and / or RB offset value of the time-frequency resource occupied by the first pilot signal, and the RE pattern and / or RB pattern of the time-frequency resource occupied by the first pilot signal.

[0290] Exemplarily, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the frequency domain density, frequency domain offset value, and frequency domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the frequency domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the RE density and / or RB density of the time-frequency resource occupied by the first pilot signal, the RE offset value and / or RB offset value of the time-frequency resource occupied by the first pilot signal, and the RE pattern and / or RB pattern of the time-frequency resource occupied by the first pilot signal.

[0291] In the embodiment of the present application, when the first information indicates the frequency domain position of the time-frequency resource occupied by the first pilot signal, there are the following two possible implementation methods.

[0292] In a possible implementation manner, the first information may indicate the frequency domain position of the time-frequency resource occupied by the first pilot signal through a first bitmap.

[0293] Exemplarily, the first information may indicate, through a first bitmap, an RB used to transmit the first pilot signal and / or REs within an RB used to transmit the first pilot signal. For example, the first information may indicate, through a first bitmap with a length of 12 bits or 16 bits, REs within an RB used to transmit the first pilot signal; wherein, REs corresponding to values ​​of 1 in the first bitmap are used to transmit the first pilot signal.

[0294] Through this method, the first information can indicate the RB used to transmit the first pilot signal and / or the RE used to transmit the first pilot signal within an RB through a first bit map, thereby improving the flexibility of the first information indicating the frequency domain position of the time-frequency resources occupied by the first pilot signal.

[0295] In another possible implementation manner, the first information may indicate the frequency domain position of the time-frequency resource occupied by the first pilot signal through an identifier of the frequency domain resource.

[0296] It should be noted that the way in which the first information indicates the frequency domain position of the time-frequency resource occupied by the first pilot signal through the identifier of the frequency domain resource is a way to directly indicate the frequency domain position of the time-frequency resource occupied by the first pilot signal.

[0297] Exemplarily, the first information may indicate the RE used to transmit the first pilot signal in an RB through an identifier of the RE; and / or,

[0298] The first information may indicate the RB used to transmit the first pilot signal through an identifier of the RB.

[0299] Through this method, the first information directly indicates the frequency domain position of the time-frequency resource occupied by the first pilot signal through the identification of the frequency domain resource, thereby improving the flexibility of the first information when indicating the frequency domain position of the time-frequency resource occupied by the first pilot signal.

[0300] Method #C: The first information may indicate the time domain position of the time-frequency resources occupied by the first pilot signal.

[0301] Through this method, the first information indicates the time domain position of the time-frequency resources occupied by the first pilot signal, so that after receiving the first information, the first device can flexibly change the time domain position of the time-frequency resources occupied by the first pilot signal according to the current channel conditions, thereby achieving a better balance between the total power of the pilot signal and the channel estimation performance, thereby improving system performance.

[0302] In the embodiment of the present application, the time domain position of the time-frequency resource occupied by the first pilot signal may be implemented in the following ways:

[0303] In one possible implementation, the first information may indicate the time domain density of the time-frequency resources occupied by the first pilot signal, and the time domain position of the time-frequency resources occupied by the first pilot signal is determined according to the time domain density of the time-frequency resources occupied by the first pilot signal.

[0304] In the embodiment of the present application, the time domain density of the time-frequency resources occupied by the first pilot signal may include: the symbol density of the time-frequency resources occupied by the first pilot signal, and / or the time slot density of the time-frequency resources occupied by the first pilot signal.

[0305] When the time domain density of the time-frequency resources occupied by the first pilot signal is the symbol density of the time-frequency resources occupied by the first pilot signal, the symbol density of the time-frequency resources occupied by the first pilot signal may be the symbol density of the time-frequency resources occupied by the first pilot signal within a time slot. The symbol density of the time-frequency resources occupied by the first pilot signal within a time slot may be a third value, and there is a mapping relationship between the third value and the number of symbols of the time-frequency resources occupied by the first pilot signal within a time slot.

[0306] Furthermore, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0307] In some embodiments, when the third value is less than or equal to 1, the number of symbols of the time-frequency resources occupied by the first pilot signal within a time slot is the product of the third value and the total number of symbols within the time slot.

[0308] For example, assuming that there are 14 symbols in a time slot, the symbol density of the time-frequency resources occupied by the first pilot signal in the time slot is 1 / 2 (that is, the third value is 1 / 2), then it can be obtained that the number of symbols of the time-frequency resources occupied by the first pilot signal in the time slot is 14*1 / 2=7.

[0309] For example, assuming that there are 14 symbols in a time slot range, and the symbol density of the time-frequency resources occupied by the first pilot signal in the time slot range is 1 (that is, the third value is 1), then it can be obtained that the number of symbols of the time-frequency resources occupied by the first pilot signal in the time slot range is 14.

[0310] In some other embodiments, when the third value is greater than 1, the number of symbols of the time-frequency resources occupied by the first pilot signal within a time slot is equal to the third value.

[0311] For example, assuming that there are 14 symbols in a time slot range, and the symbol density of the time-frequency resources occupied by the first pilot signal in the time slot range is 6 (that is, the third value is 6), then it can be obtained that the number of symbols of the time-frequency resources occupied by the first pilot signal in the time slot range is 6.

[0312] Through this method, when the time domain density of the first pilot signal occupying the time-frequency resources is the symbol density of the first pilot signal occupying the time-frequency resources, after the first device receives the first information, it can flexibly change the symbol density of the first pilot signal occupying the time-frequency resources according to the wireless environment, so as to better match the current channel and improve system performance.

[0313] When the time domain density of the time-frequency resources occupied by the first pilot signal is the time slot density of the time-frequency resources occupied by the first pilot signal, the time slot density of the time-frequency resources occupied by the first pilot signal may be a fourth value. Assuming that one time slot in every P time slots is used to transmit the first pilot signal, there is a mapping relationship between the fourth value and the value of P; where P is a positive integer.

[0314] Furthermore, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0315] In some embodiments, when the fourth value is less than or equal to 1, the value of P is the reciprocal of the fourth value.

[0316] Exemplarily, assuming that the time slot density of the time-frequency resource occupied by the first pilot signal is 0.5 (ie, the fourth value is 0.5), the value of P is 1 / 0.5=2, that is, one time slot in every two time slots is used to transmit the first pilot signal.

[0317] Exemplarily, assuming that the time slot density of the time-frequency resource occupied by the first pilot signal is 1 (ie, the fourth value is 1), the value of P is 1, that is, each time slot is used to transmit the first pilot signal.

[0318] In other embodiments, when the fourth value is greater than 1, the value of P is equal to the fourth value.

[0319] Exemplarily, assuming that the time slot density of the time-frequency resource occupied by the first pilot signal is 2 (ie, the fourth value is 2), the value of P is 2, that is, one time slot in every two time slots is used to transmit the first pilot signal.

[0320] It should be noted that the first pilot signal occupies at least part of the symbols in a time slot of the time-frequency resource for transmitting the first pilot signal.

[0321] Furthermore, the at least partial symbol may be a symbol in a time slot, or multiple symbols in a time slot (not all symbols in a time slot), or all symbols in a time slot, which is not limited in the embodiments of the present application.

[0322] Through this method, when the time domain density of the time-frequency resources occupied by the first pilot signal is the time slot density of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can change the time slot density of the time-frequency resources occupied by the first pilot signal with a larger granularity according to the wireless environment, which is more flexible and more conducive to multi-user multiplexing, reducing pilot signal interference between multiple users.

[0323] In another possible implementation, the first information may indicate the time domain offset value of the time-frequency resources occupied by the first pilot signal, and the time domain position of the time-frequency resources occupied by the first pilot signal may be determined based on the time domain offset value of the time-frequency resources occupied by the first pilot signal.

[0324] In an embodiment of the present application, the time domain offset value of the time-frequency resource occupied by the first pilot signal may include: the symbol offset value of the time-frequency resource occupied by the first pilot signal, and / or the time slot offset value of the time-frequency resource occupied by the first pilot signal.

[0325] When the time domain offset value of the time-frequency resources occupied by the first pilot signal is the symbol offset value of the time-frequency resources occupied by the first pilot signal, the symbol of the time-frequency resources occupied by the first pilot signal within the time slot can be obtained based on the symbol offset value of the time-frequency resources occupied by the first pilot signal and the number of symbols of the time-frequency resources occupied by the first pilot signal within the time slot.

[0326] For example, assuming that there are 14 symbols within a time slot, the symbol offset value of the time-frequency resource occupied by the first pilot signal is offset_symbol, and the number of symbols of the time-frequency resource occupied by the first pilot signal within the time slot is Q, then the identifiers (or positions, similar to other places, no longer detailed description) of the symbols of the time-frequency resource occupied by the first pilot signal within the time slot are: offset_symbol, offset_symbol+14 / Q, offset_symbol+2*14 / Q, offset_symbol+3*14 / Q, etc.; where Q is a positive integer.

[0327] For example, as shown in Figure 12, assuming that there are 14 symbols in a time slot, taking Q=7 and offset_symbol=0 as an example, the symbols of the time-frequency resources occupied by the first pilot signal in the time slot are identified as: 0, 2, 4, 6, 8, 10, and 12 respectively.

[0328] For another example, as shown in Figure 13, assuming that there are 14 symbols in a time slot, taking Q=7 and offset_symbol=1 as an example, the symbols of the time-frequency resources occupied by the first pilot signal in the time slot are identified as: 1, 3, 5, 7, 9, 11, and 13 respectively.

[0329] Through this method, when the time domain offset value of the time-frequency resources occupied by the first pilot signal is the symbol offset value of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the symbol allocation of the time-frequency resources occupied by the first pilot signal, so as to better match the current channel, be more conducive to multi-user multiplexing, and reduce pilot signal interference between multiple users.

[0330] When the time domain offset value of the time-frequency resources occupied by the first pilot signal is the time slot offset value of the time-frequency resources occupied by the first pilot signal, the time slot of the time-frequency resources occupied by the first pilot signal can be obtained according to the time slot offset value of the time-frequency resources occupied by the first pilot signal and the value of P (one time slot in every P time slots is used to transmit the first pilot signal).

[0331] Exemplarily, assuming that the time slot offset value of the time-frequency resource occupied by the first pilot signal is offset_slot, the identifiers of the time slots of the time-frequency resource occupied by the first pilot signal are offset_slot, offset_slot+P, offset_slot+2*P, offset_slot+3*P, and so on.

[0332] For example, as shown in FIG14 , taking P=3 and offset_slot=0 as an example, the identifiers of the time slots of the time-frequency resources occupied by the first pilot signal are: 0, 3, and 6, respectively.

[0333] For another example, as shown in FIG15 , taking P=3 and offset_slot=2 as an example, the identifiers of the time slots of the time-frequency resources occupied by the first pilot signal are 2, 5, and 8, respectively.

[0334] It should be noted that, in the embodiment of the present application, the timeslot can be identified in the following two ways:

[0335] The first type: The time slot identifier is the internal identifier of the time slot actually used for transmission (or scheduling). For example, among the multiple time slots actually used for transmission, the identifiers (or positions, similar to other places, and not repeated here) of the multiple time slots can be sorted from small to large, so that the 0th time slot, the 1st time slot, the 2nd time slot, and so on can be obtained. For example, as shown in Figure 14, there are 9 time slots actually used for transmission, and the identifiers of these 9 time slots are 0, 1, 2, 3, 4, 5, 6, 7, and 8 respectively.

[0336] The second type: The timeslot identifier is the identifier of the timeslot in the system. For example, the i-th timeslot corresponds to the timeslot identifier i in the system. For example, assuming there are four timeslots used for transmission in the system, and the identifiers of these four timeslots are 2, 3, 4, and 5, as shown in Figure 14, the timeslot used to transmit the first pilot signal is identified as 3; as shown in Figure 15, the timeslots used to transmit the first pilot signal are identified as 2 and 5, respectively.

[0337] Through this method, when the time domain offset value of the time-frequency resources occupied by the first pilot signal is the time slot offset value of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the time slot allocation of the time-frequency resources occupied by the first pilot signal, so as to better match the current channel, be more conducive to multi-user multiplexing, and reduce pilot signal interference between multiple users.

[0338] In another possible implementation, the first information may indicate the time domain pattern of the time-frequency resources occupied by the first pilot signal, and the time domain position of the time-frequency resources occupied by the first pilot signal may be determined based on the time domain pattern of the time-frequency resources occupied by the first pilot signal.

[0339] In the embodiment of the present application, the time domain pattern of the time-frequency resources occupied by the first pilot signal may include: the symbol pattern of the time-frequency resources occupied by the first pilot signal, and / or the time slot pattern of the time-frequency resources occupied by the first pilot signal.

[0340] In the case that the time domain pattern of the time-frequency resources occupied by the first pilot signal is a symbol pattern of the time-frequency resources occupied by the first pilot signal, the symbol pattern may be determined by a predefined rule and / or network device configuration.

[0341] Exemplarily, Figures 12 and 13 may be symbol patterns determined by predefined rules and / or network device configuration, and the symbol pattern of the time-frequency resources occupied by the first pilot signal may be one of the symbol patterns shown in Figure 12 and the symbol pattern shown in Figure 13.

[0342] Exemplarily, assuming that the symbol pattern of the time-frequency resources occupied by the first pilot signal is the symbol pattern shown in Figure 12, the identifiers of the symbols of the time-frequency resources occupied by the first pilot signal within a time slot are: 0, 2, 4, 6, 8, 10, and 12 respectively.

[0343] Exemplarily, assuming that the symbol pattern of the time-frequency resources occupied by the first pilot signal is the symbol pattern shown in Figure 13, the identifiers of the symbols of the time-frequency resources occupied by the first pilot signal within a time slot are: 1, 3, 5, 7, 9, 11, and 13 respectively.

[0344] Through this method, when the time domain pattern of the time-frequency resources occupied by the first pilot signal is the symbol pattern of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the symbol allocation of the time-frequency resources occupied by the first pilot signal, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0345] In the case where the time domain pattern of the time-frequency resources occupied by the first pilot signal is a time slot pattern of the time-frequency resources occupied by the first pilot signal, the time slot pattern may be determined by a predefined rule and / or network device configuration.

[0346] Exemplarily, Figures 14 and 15 may be time slot patterns determined by predefined rules and / or network device configuration, and the time slot pattern of the time-frequency resources occupied by the first pilot signal may be one of the time slot patterns shown in Figure 14 and the time slot patterns shown in Figure 15.

[0347] Exemplarily, assuming that the time slot pattern of the time-frequency resources occupied by the first pilot signal is the time slot pattern shown in FIG14 , the identifiers of the time slots of the time-frequency resources occupied by the first pilot signal are 0, 3, and 6, respectively.

[0348] Exemplarily, assuming that the time slot pattern of the time-frequency resources occupied by the first pilot signal is the time slot pattern shown in FIG15 , the identifiers of the time slots of the time-frequency resources occupied by the first pilot signal are 2, 5, and 8, respectively.

[0349] Through this method, when the time domain pattern of the time-frequency resources occupied by the first pilot signal is the time slot pattern of the time-frequency resources occupied by the first pilot signal, after the first device receives the first information, it can flexibly change the time slot allocation of the time-frequency resources occupied by the first pilot signal, thereby being more conducive to multi-user multiplexing and reducing pilot signal interference between multiple users.

[0350] Based on the foregoing possible implementations, the time-domain position of the time-frequency resource occupied by the first pilot signal may be determined according to one or more of the following parameters indicated by the first information:

[0351] time domain density of time-frequency resources occupied by the first pilot signal;

[0352] The time domain offset value of the time-frequency resource occupied by the first pilot signal; and

[0353] The time domain pattern of the time-frequency resources occupied by the first pilot signal.

[0354] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain density of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the symbol density of the time-frequency resource occupied by the first pilot signal, in which case the symbol offset value of the time-frequency resource occupied by the first pilot signal can be determined by a predefined rule and / or network device configuration; and / or the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time slot density of the time-frequency resource occupied by the first pilot signal, in which case the time slot offset value of the time-frequency resource occupied by the first pilot signal can be determined by a predefined rule and / or network device configuration.

[0355] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain offset value of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the symbol offset value of the time-frequency resource occupied by the first pilot signal, in which case the symbol density of the time-frequency resource occupied by the first pilot signal can be determined by predefined rules and / or network device configuration; and / or, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time slot offset value of the time-frequency resource occupied by the first pilot signal, in which case the time slot density of the time-frequency resource occupied by the first pilot signal can be determined by predefined rules and / or network device configuration.

[0356] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on one or more of the following: a symbol pattern of the time-frequency resource occupied by the first pilot signal; and a time slot pattern of the time-frequency resource occupied by the first pilot signal.

[0357] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain density and time domain offset value of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the symbol density and / or time slot density of the time-frequency resource occupied by the first pilot signal, and the symbol offset value and / or time slot offset value of the time-frequency resource occupied by the first pilot signal.

[0358] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain density and time domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the symbol density and / or time slot density of the time-frequency resource occupied by the first pilot signal, as well as the symbol pattern and / or time slot pattern of the time-frequency resource occupied by the first pilot signal.

[0359] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain offset value and the time domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the symbol offset value and / or time slot offset value of the time-frequency resource occupied by the first pilot signal, and the symbol pattern and / or time slot pattern of the time-frequency resource occupied by the first pilot signal.

[0360] Exemplarily, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the time domain density, time domain offset value, and time domain pattern of the time-frequency resource occupied by the first pilot signal. For example, the time domain position of the time-frequency resource occupied by the first pilot signal can be determined based on the symbol density and / or time slot density of the time-frequency resource occupied by the first pilot signal, the symbol offset value and / or time slot offset value of the time-frequency resource occupied by the first pilot signal, and the symbol pattern and / or time slot pattern of the time-frequency resource occupied by the first pilot signal.

[0361] In the embodiment of the present application, when the first information indicates the time domain position of the time-frequency resource occupied by the first pilot signal, there are the following two possible implementation methods.

[0362] In a possible implementation, the first information indicates the time domain position of the time-frequency resources occupied by the first pilot signal through a second bit map.

[0363] Exemplarily, the first information may indicate, via a second bitmap, a time slot for transmitting the first pilot signal and / or a symbol within a time slot for transmitting the first pilot signal. For example, the first information may indicate, via a second bitmap having a length of 14 bits, a symbol within a time slot for transmitting the first pilot signal; wherein a symbol corresponding to a value of 1 in the second bitmap is used to transmit the first pilot signal.

[0364] Through this method, the first information can indicate the time slot used to transmit the first pilot signal and / or the symbol used to transmit the first pilot signal within a time slot through the second bit map, thereby improving the flexibility of the first information when indicating the time domain position of the time-frequency resources occupied by the first pilot signal.

[0365] In another possible implementation manner, the first information may indicate the time domain position of the time-frequency resource occupied by the first pilot signal through an identifier of the time domain resource.

[0366] It should be noted that the way in which the first information indicates the time domain position of the time-frequency resource occupied by the first pilot signal through the identifier of the time domain resource is a way to directly indicate the time domain position of the time-frequency resource occupied by the first pilot signal.

[0367] Exemplarily, the first information may indicate a symbol used to transmit the first pilot signal in a time slot through a symbol identifier; and / or,

[0368] The first information may indicate the time slot used for transmitting the first pilot signal through an identifier of the time slot.

[0369] Through this method, the first information directly indicates the time domain position of the time-frequency resource occupied by the first pilot signal through the identifier of the time domain resource, thereby improving the flexibility of the first information in indicating the time domain position of the time-frequency resource occupied by the first pilot signal.

[0370] In some embodiments, the time domain position of the time-frequency resource occupied by the first pilot signal may include the first symbol and / or the last symbol occupied by the data signal.

[0371] Exemplarily, as shown in Figure 16, it is assumed that the data signal transmission occupies 6 symbols, where one of every two symbols contains the first pilot signal. At this time, the time-frequency resources occupied by the first pilot signal are the 0th symbol, the 2nd symbol and the 4th symbol in Figure 16, and the time domain position of the time-frequency resources occupied by the first pilot signal may include the time domain position of the first symbol occupied by the data signal.

[0372] Exemplarily, as shown in Figure 17, assuming that the data signal transmission occupies 6 symbols, the time-frequency resources occupied by the first pilot signal are the 0th symbol, the 2nd symbol, the 4th symbol and the 5th symbol in Figure 17, and the time domain position of the time-frequency resources occupied by the first pilot signal may include the first symbol and the last symbol occupied by the data signal.

[0373] Exemplarily, as shown in Figure 18, assuming that the data signal transmission occupies 6 symbols, the time-frequency resources occupied by the first pilot signal are the 0th symbol, the 2nd symbol and the 5th symbol in Figure 18, and the time domain position of the time-frequency resources occupied by the first pilot signal may include the first symbol and the last symbol occupied by the data signal.

[0374] By using this method, system performance can be improved when the time domain position of the time-frequency resource occupied by the first pilot signal may include the first symbol and / or the last symbol occupied by the data signal.

[0375] In some embodiments, when the time domain density of the time-frequency resources occupied by the first pilot signal meets a first preset range, the time domain position of the time-frequency resources occupied by the first pilot signal may include the first symbol and / or the last symbol occupied by the data signal.

[0376] It should be noted that the first preset range can be a parameter range predefined by the protocol, a parameter range configured by the network device, or a parameter range set by other means, and the embodiments of the present application do not limit this.

[0377] It should also be noted that the time domain density of the time-frequency resources occupied by the first pilot signal may be the symbol density of the time-frequency resources occupied by the first pilot signal and / or the time slot density of the time-frequency resources occupied by the first pilot signal.

[0378] Exemplarily, when the symbol density of the time-frequency resources occupied by the first pilot signal is less than or equal to 1, it is assumed that the first preset range is (0, 1 / 3]. As shown in Figure 19, taking data transmission occupying 6 symbols as an example, the symbol density of the time-frequency resources occupied by the first pilot signal is 1 / 2. At this time, the symbol density of the time-frequency resources occupied by the first pilot signal does not meet the first preset range. Therefore, the time domain position of the time-frequency resources occupied by the first pilot signal may not include the last symbol occupied by the data signal (i.e., the 5th symbol).

[0379] Exemplarily, when the symbol density of the time-frequency resources occupied by the first pilot signal is less than or equal to 1, it is assumed that the first preset range is (0, 1 / 3]. As shown in Figure 20, taking data transmission occupying 6 symbols as an example, the symbol density of the time-frequency resources occupied by the first pilot signal is 1 / 3. At this time, the symbol density of the time-frequency resources occupied by the first pilot signal meets the first preset range. Therefore, the time domain position of the time-frequency resources occupied by the first pilot signal can include the last symbol occupied by the data signal (i.e., the 5th symbol).

[0380] In some embodiments, when the interval between the last symbol occupied by the data signal and the target symbol is greater than or equal to a first threshold and the target symbol is the symbol before the last symbol containing the first pilot signal, the time domain position of the time-frequency resources occupied by the first pilot signal may include the first symbol and / or the last symbol occupied by the data signal.

[0381] It should be noted that the first threshold value can be a parameter value predefined by the protocol, a parameter value configured by the network device, or a parameter value set by other means, and the embodiments of the present application do not limit this.

[0382] Exemplarily, assume that the first threshold is 2. As shown in FIG21 , taking data transmission occupying 5 symbols as an example, the last symbol occupied by the data signal is the 4th symbol, and the symbol containing the first pilot signal (i.e., the target symbol) before the last symbol is the 3rd symbol. At this time, the interval between the last symbol occupied by the data signal and the target symbol is 1 (less than the first threshold 2). Therefore, the time domain position of the time-frequency resource occupied by the first pilot signal may not include the time domain position of the last symbol occupied by the data signal (i.e., the 4th symbol).

[0383] Exemplarily, assume that the first threshold is 2. As shown in FIG22 , taking data transmission occupying 6 symbols as an example, the last symbol occupied by the data signal is the 5th symbol, and the symbol containing the first pilot signal (i.e., the target symbol) before the last symbol is the 3rd symbol. At this time, the interval between the last symbol occupied by the data signal and the target symbol is 2 (equal to the first threshold), so the time domain position of the time-frequency resource occupied by the first pilot signal may include the last symbol occupied by the data signal.

[0384] Based on this, in one or more of the following situations, the time domain position of the time-frequency resource occupied by the first pilot signal may include the first symbol and / or the last symbol occupied by the data signal:

[0385] The time domain density of the time-frequency resources occupied by the first pilot signal satisfies a first preset range;

[0386] The interval between the last symbol occupied by the data signal and the target symbol is greater than or equal to a first threshold, and the target symbol is a symbol containing the first pilot signal before the last symbol.

[0387] Mode #D: The first information may indicate a sequence of the first pilot signal.

[0388] In some embodiments, the first information may indicate a type of the sequence of the first pilot signal; and / or a method of generating the sequence of the first pilot signal.

[0389] Exemplarily, the type of the sequence of the first pilot signal may be a Gold sequence, a ZC sequence, an M sequence, etc., which is not limited in the embodiment of the present application.

[0390] It should be noted that the sequence generation method of the first pilot signal may be predefined or determined by other methods, and this embodiment of the present application does not limit this.

[0391] It should also be noted that the sequence generation method of the first pilot signal may be a generation method of different types of sequences.

[0392] Through this method, the first information can flexibly indicate the sequence of the first pilot signal, thereby optimizing the sequences between different users, reducing interference between sequences, and improving system performance.

[0393] Method #E: The first information may indicate a sequence generation parameter of the first pilot signal.

[0394] Through this method, the first information can flexibly indicate the sequence generation of the first pilot signal, thereby optimizing the sequences between different users, reducing interference between sequences, and improving system performance.

[0395] Exemplarily, the first information may indicate one or more groups of sequence generation parameters of first pilot signals, wherein each group of sequence generation parameters of first pilot signals may include one or more sequence generation parameters.

[0396] Exemplarily, the second device may select the sequence generation parameter of the first pilot signal through DCI signaling.

[0397] Through this method, the second device can select the sequence generation parameters of the first pilot signal through DCI signaling, thereby improving flexibility.

[0398] It should be noted that, when there are multiple sequence generation parameters for the first pilot signal, different sequence generation parameters may correspond to different ports of the first pilot signal.

[0399] Through this method, the first information can flexibly indicate the sequence generation of the corresponding port of the first pilot signal, thereby reducing sequence interference of pilot signals between multiple layers and improving system performance.

[0400] In some embodiments, the sequence generation parameters of the first pilot signal may include one or more of the following:

[0401] An identifier of a time domain resource in the time-frequency resources occupied by the first pilot signal;

[0402] an identifier of the system frame number (SNF) in which the first pilot signal resides;

[0403] an identifier of the cell where the first pilot signal is located;

[0404] an identifier of the carrier where the first pilot signal is located;

[0405] an identifier of a port of the first pilot signal;

[0406] a scrambling parameter of the first pilot signal;

[0407] an identification of a control channel of a data signal; and,

[0408] Other parameters for network configuration.

[0409] It should be noted that the sequence generation parameters of each group of first pilot signals indicated by the first information may include one or more of the above sequence generation parameters.

[0410] It should also be noted that the identifier of the time domain resources occupied by the first pilot signal in the time-frequency resources may include one or more of the following: an identifier of the time slot (Slot) occupied by the first pilot signal in the time-frequency resources; an identifier of the symbol occupied by the first pilot signal in the time-frequency resources; and an identifier of the symbol occupied by the first pilot signal in a time slot or a subframe (Sub-Frame) or a frame (Frame).

[0411] Exemplarily, the identifier of the cell where the first pilot signal is located may be an identifier of the physical layer cell where the first pilot signal is located.

[0412] Exemplarily, the carrier where the first pilot signal is located may be a component carrier in carrier aggregation.

[0413] Exemplarily, the identifier of the control channel of the data signal may be a group identifier corresponding to a control resource set (Control Resource Set, CORESET).

[0414] It should be noted that the sequence corresponding to port i of the first pilot signal can be generated based on the port identifier i. Furthermore, the port identifier of the first pilot signal can be the identifier of some ports of the first pilot signal, or the identifier of each port of the first pilot signal, which is not limited in this embodiment of the present application.

[0415] It should also be noted that the sequence generation parameters of the first pilot signal may also include other relevant parameters configured by the network device.

[0416] By using this method, the sequence of the first pilot signal can be randomized, sequence interference of pilot signals between multiple layers can be reduced, and system performance can be improved.

[0417] Mode #F: The first information indicates the port information of the first pilot signal.

[0418] It should be noted that after receiving the first information, the first device can determine different ports of the first pilot signal.

[0419] In some embodiments, the port information of the first pilot signal may include one or more of the following:

[0420] The maximum number of ports for the first pilot signal;

[0421] A sequence corresponding to the port of the first pilot signal;

[0422] The time domain resource corresponding to the port of the first pilot signal;

[0423] Frequency domain resources corresponding to the port of the first pilot signal;

[0424] The port of the first pilot signal adopts code division multiplexing mode;

[0425] The port of the first pilot signal adopts a frequency division multiplexing (FDM) method; and

[0426] The port of the first pilot signal adopts a time division multiplexing (TDM) mode.

[0427] It should be noted that the first information may indicate the maximum number of ports for the first pilot signal. For example, the first information may indicate that the maximum number of ports for the first pilot signal is 2. In actual transmission, the second device may determine whether to use one or two ports of the first pilot signal when sending based on the number of layers actually transmitted; the second device may determine whether to use one or two ports of the first pilot signal when sending based on scheduling information (for example, the number of layers of the transmitted data signal); wherein the time-frequency resources corresponding to the ports may be determined by predefined rules and / or configured by the network device; and the sequence of the first pilot signal corresponding to the ports may be determined by predefined rules and / or configured by the network device.

[0428] It should also be noted that the port of the first pilot signal may be each port of the first pilot signal, or may be some ports of the first pilot signal, which is not limited in this embodiment of the present application.

[0429] It should also be noted that the first information may indicate the sequence corresponding to the port of the first pilot signal. For example, the first information may indicate two different sets of sequence generation parameters, where each set of sequence generation parameters may include one or more sequence generation parameters, and each set of sequence generation parameters may correspond to the sequence generation of one port. In actual transmission, the second device may determine the corresponding sequence generation parameter based on the port of the first pilot signal actually used to obtain the corresponding sequence, and the first device may also determine the sequence corresponding to the first pilot signal based on scheduling information (for example, which port or ports of the first pilot signal are used by the second device).

[0430] It should also be noted that, when the first information indicates the time domain resource corresponding to the port of the first pilot signal, different ports may correspond to different time domain resources.

[0431] It should also be noted that, when the first information indicates the frequency domain resources corresponding to the ports of the first pilot signal, different ports may correspond to different frequency domain resources.

[0432] It should also be noted that the code division multiplexing mode may be an OCC mode, that is, different ports of the first pilot signal may use different orthogonal vectors.

[0433] Through this method, the first information can flexibly indicate different ports of the first pilot signal, thereby reducing sequence interference of pilot signals between multiple layers and improving system performance.

[0434] Based on the above-mentioned method #A to method #F, after receiving the first information, the first device can obtain the corresponding configuration of the first pilot signal based on the first information, thereby improving the adaptation of the receiver to the actual received data signal, so that the receiver can be used to demodulate the data signal.

[0435] In some embodiments, before the first device receives the first information, the method may further include: the first device sending capability information of the first device, where the capability information of the first device indicates that the first device supports the first pilot signal.

[0436] Accordingly, before the second device sends the first information to the first device, the method may further include: the second device receiving capability information of the first device.

[0437] Furthermore, the first device may send capability information of the first device through RRC signaling, MAC CE signaling, etc.

[0438] In some embodiments, the capability information of the first device may be a capability for any of the following objects:

[0439] frequency band;

[0440] Band Combination;

[0441] Each band in the band combination;

[0442] Each carrier on each band in the band combination;

[0443] Frequency Range (FR);

[0444] First device.

[0445] It should be noted that the capability information of the first device may be frequency band-specific. That is, different frequency bands (Per Band) may independently report the capability information of the corresponding first device. Based on this, the first device can have greater freedom. For example, the first device may support reporting the capability information of the corresponding first device on one or more frequency bands, but not support reporting the capability information of the corresponding first device on other frequency bands, thereby enabling more first devices to support reporting the capability information of the corresponding first device.

[0446] It should also be noted that the capability information of the first device may be specific to a frequency band combination. That is, different frequency band combinations may independently report the capability information of the corresponding first device. This allows the first device greater freedom. For example, the first device may support reporting the capability information of the corresponding first device for one or certain frequency band combinations, but not support reporting the capability information of the corresponding first device for other frequency band combinations. This allows more first devices to support reporting the capability information of the corresponding first device.

[0447] It should also be noted that the capability information of the first device can be the capability for each frequency band in the frequency band combination, that is, each frequency band in different frequency band combinations (Per Band Per Band Combination) can independently report the capability information of the corresponding first device. Based on this, the first device can have greater freedom. For example, the first device may not support reporting the capability information of the corresponding first device under a certain carrier aggregation (CA) combination, but support reporting the capability information of the corresponding first device on certain frequency bands under another CA combination, thereby enabling more first devices to support reporting the capability information of the corresponding first device.

[0448] It should also be noted that the capability information of the first device can be the capability of each carrier on each frequency band in the frequency band combination, that is, different component carriers (CC) in the frequency bands of different frequency band combinations (Per CC Per Band Per Band Combination) can independently report the capability information of the corresponding first device. Based on this, the first device can have greater freedom. For example, different frequency band combinations can independently report the capability information of the corresponding first device, and different carriers on a frequency band can also independently report the capability information of the corresponding first device, so that more first devices can support reporting the capability information of the corresponding first device.

[0449] It should also be noted that the capability information of the first device can be specific to the FR. That is, different FRs (per FR) can independently report the capability information of the corresponding first device. Based on this, the first device can have greater freedom. For example, there are two FRs, respectively recorded as low-frequency FR (i.e., FR1) and high-frequency FR (i.e., FR2). FR1 may not support reporting the capability information of the corresponding first device, while FR2 can support reporting the capability information of the corresponding first device. This allows more first devices to support reporting the capability information of the corresponding first device.

[0450] It should also be noted that the capability information of the first device may be specific to the capabilities of the first device. Based on this, when the first device reports the capability information of the first device, it can be assumed that the first device can support reporting the capability information of the first device on all frequency bands, thereby reducing the signaling overhead of the capability reporting of the first device.

[0451] An embodiment of the present application provides a communication method, in which a first device can receive first information, the first information being used to configure a first pilot signal, wherein at least a portion of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal. Thus, after receiving the first signal, the first device can learn that the first pilot signal to be configured occupies at least a portion of the same time-frequency resources as the data signal. Thus, if the first pilot signal occupies more time-frequency resources, at least a portion of the time-frequency resources occupied by the first pilot signal can also be occupied by the data signal, thereby increasing the time-frequency resources occupied by the data signal and improving the transmission rate and reliability of the data signal.

[0452] The communication method provided in the embodiment of the present application is described in detail below in conjunction with specific application scenarios.

[0453] In related technologies, DMRS signals and data signals occupy different time-frequency resources, meaning they are orthogonally placed on the time-frequency resources. Given a fixed total time-frequency resource allocation, increasing the time-frequency resource overhead used to transmit DMRS signals means less time-frequency resources available for data transmission, thereby reducing the data signal transmission rate.

[0454] One way to solve the above shortcomings is to enable the DMRS signal and the data signal to be transmitted on the same time-frequency resources (such as RE). At this time, an advanced receiver (such as an iterative receiver, an AI / ML receiver) can be used to process it, so that the data signal can be demodulated. The AI / ML receiver can adopt various methods such as deep learning algorithms. For example, one or a combination of FCN, CNN, RNN, and Transformer neural network architectures can be used for specific implementation. The above receiver is only an example, and the actual receiver is not limited to the above example.

[0455] It should be noted that the use of advanced receivers requires that the receiving end (e.g., the first terminal device) be aware of the corresponding DMRS signal configuration. Otherwise, the receiver will not be able to adapt to the actual received data signal, resulting in performance degradation. Currently, there is a lack of specific design methods for non-orthogonal DMRS signals. The embodiments of the present application can provide specific configuration solutions for such non-orthogonal DMRS signals.

[0456] It should also be noted that, in the following description, the non-orthogonal DMRS signal is referred to as the first DMRS signal, and the orthogonal DMRS signal is referred to as the second DMRS signal. Furthermore, to simplify the description, the data signal mentioned in the embodiments of the present application, unless otherwise specified (e.g., referring to a data channel), may refer to a general data signal to be transmitted or control information.

[0457] The configuration of the first DMRS signal in the embodiment of the present application mainly involves the following aspects:

[0458] (1) Power parameter of the first DMRS signal;

[0459] (2) The frequency domain location of the time-frequency resources occupied by the first DMRS signal: RE / RB density, RE / RB offset value (i.e., RE-level offset and RB-level offset), and RE / RB pattern;

[0460] (3) The time domain location of the time-frequency resources occupied by the first DMRS signal: symbol / time slot density, symbol / time slot offset value (i.e., symbol-level offset and slot-level offset), and symbol / time slot pattern;

[0461] (4) a sequence of the first DMRS signal;

[0462] (5) Port information of the first DMRS signal;

[0463] (6) Sequence generation parameters of the first DMRS signal;

[0464] (7) Configuration granularity.

[0465] In an embodiment of the present application, a first terminal device (i.e., a first device) can receive first information sent by a network device or a second terminal device (corresponding to a sidelink scenario) (i.e., a second device). The first information can be used to configure a first DMRS signal. One or more or all time-frequency resources (e.g., REs) occupied by the first DMRS signal are also time-frequency resources occupied by data signals (including general data signals or control information) (in order to simplify the description, these time-frequency resources are referred to as shared time-frequency resources in the following description).

[0466] Taking PDSCH transmission as an example, it is assumed that the network device schedules 8 symbols (it can be other numbers, such as 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, etc.) for the transmission of data signals, and the frequency domain takes 12 subcarriers as an example (that is, a total of 12*8=96 REs).

[0467] As shown in Figure 5, all REs are used for the transmission of data signals and the first DMRS signal at the same time; as shown in Figure 6, the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol are used for the transmission of data signals and the first DMRS signal at the same time, and other REs are used for the transmission of data signals.

[0468] Through this method, the first DMRS signal and the data signal can occupy the same time-frequency resources, so that the data signal can use more time-frequency resources, thereby increasing the transmission rate of the data signal and further improving the transmission reliability of the data signal.

[0469] In some embodiments, the first information may be carried by a first signaling, and specific transmission of the first information may be implemented by one or more of the following message / signaling combinations:

[0470] Broadcast messages, e.g., MIB;

[0471] System messages, e.g., SIB1, SIB;

[0472] RRC signaling;

[0473] MAC CE signaling;

[0474] DCI;

[0475] Downlink messages in the random access process (i.e., random access messages), for example, MsgB, Msg2, and Msg4;

[0476] Dedicated signaling, such as AI / ML-specific signaling.

[0477] For example, the first information may be carried by RRC signaling and DCI; for another example, the first information may be carried by system message and RRC signaling. Other combinations are not given one by one and can be directly generalized.

[0478] It should be noted that the first information can be carried by the same signaling / message, or by multiple signals / messages of the same type. For example, the first signaling can correspond to multiple RRC signalings. In this case, the first information can be carried by multiple RRC signalings.

[0479] It should also be noted that different first signalings can carry different DMRS signals. For example, a first signaling may carry first information used to configure a first DMRS signal; another first signaling may carry second information used to configure a second DMRS signal. The time-frequency resources occupied by the second DMRS signal are not used to transmit data signals. That is, the data signal and the second DMRS signal occupy different time-frequency resources. In other words, the time-frequency resources occupied by the data signal and the second DMRS signal are orthogonal.

[0480] For example, as shown in FIG7 , the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol can be used for transmitting the second DMRS signal, and other REs can be used for transmitting data signals. In this case, the data signal and the second DMRS signal occupy different REs.

[0481] In some embodiments, the first signaling may include first indication information, and different values ​​of the first indication information are used to indicate whether the DMRS signal carried by the first signaling is the first DMRS signal or the second DMRS signal.

[0482] In other embodiments, the first signaling may indicate whether the first signaling carries the first DMRS signal or the second DMRS signal by configuring different fields (ie, the first information field and the second information field) through a CHOICE structure.

[0483] The configuration of the first DMRS signal is described in detail below in conjunction with several aspects mainly involved in the configuration of the first DMRS signal.

[0484] In a first aspect, the first information indicates a power parameter of the first DMRS signal.

[0485] It should be noted that the "power" involved in the embodiments of the present application can also be directly expanded to "energy", and the embodiments of the present application do not limit this.

[0486] Through this method, the first information can flexibly indicate the power allocation of the first DMRS signal, so that the system can optimize the transmission power of the first DMRS signal according to the wireless environment and improve system performance.

[0487] In some embodiments, the power parameter of the first DMRS signal can be the ratio of the power of the first DMRS signal sent on a shared time-frequency resource (i.e., the first time-frequency resource) to the total power on the shared time-frequency resource (i.e., the total power of the first DMRS signal and the data signal).

[0488] For example, taking any RE in FIG5 as an example, the power parameter of the first DMRS signal may be the ratio of the power of the first DMRS signal transmitted on any RE in FIG5 to the total power on the RE. For example, if the total power on an RE is 1, the power of the first DMRS signal transmitted on the RE is 0.2, and the power of the data signal transmitted on the RE is 0.8, then the power parameter of the first DMRS signal is 0.2; if converted to a dB value, the power parameter of the first DMRS signal is -7dB.

[0489] For example, taking Figure 6 as an example, the power parameter of the first DMRS signal can be the ratio of the power sent by the first DMRS signal on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on the RE.

[0490] Exemplarily, when the ratio is a linear value, the candidate values ​​of the ratio may be one or more of the following values: {0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.15, 0.20, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9}.

[0491] Exemplarily, when the ratio is a dB value, the candidate values ​​of the ratio may be one or more of the following values: {-1dB, -2dB, -3dB, -4dB, -5dB, -6dB, -7dB, -8dB, -9dB, -10dB, -11dB, -12dB, -13dB, -14dB, -15dB, -16dB, -17dB, -18dB, -19dB, -20dB}.

[0492] It should be noted that the power parameter of the first DMRS signal may also be the ratio of the total power on a shared time-frequency resource to the power transmitted by the first DMRS signal on the shared time-frequency resource. In this scenario, if the ratio is a linear value, the candidate value of the ratio may be the reciprocal of the above-mentioned example value; if the ratio is a dB value, the candidate value of the ratio may be the inverse of the above-mentioned example value.

[0493] Through this method, the first information can directly indicate the proportion of total power (that is, the ratio of the power sent by the first DMRS signal on a shared time-frequency resource to the total power on the shared time-frequency resource), thereby simplifying the calculation of the power parameters of the first DMRS signal.

[0494] In some embodiments, the power parameter of the first DMRS signal can be the ratio of the power of the data signal sent on a shared time-frequency resource (i.e., the first time-frequency resource) to the total power on the shared time-frequency resource (i.e., the total power of the first DMRS signal and the data signal).

[0495] For example, taking any RE in FIG5 as an example, the power parameter of the first DMRS signal may be the ratio of the power of the data signal transmitted on any RE in FIG5 to the total power on the RE. For example, if the total power on an RE is 1, the power of the first DMRS signal transmitted on the RE is 0.2, and the power of the data signal transmitted on the RE is 0.8, then the power parameter of the first DMRS signal is 0.8; if converted to a dB value, the power parameter of the first DMRS signal is -1dB.

[0496] Exemplarily, taking Figure 6 as an example, the power parameter of the first DMRS signal can be the ratio of the power of the data signal sent on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power on the RE.

[0497] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0498] It should also be noted that the power parameter of the first DMRS signal can also be the ratio of the total power on a shared time-frequency resource to the power of the data signal sent on the shared time-frequency resource. In this scenario, when the ratio is a linear value, the candidate value of the ratio can be the reciprocal of the above-mentioned example value; when the ratio is a dB value, the candidate value of the ratio can be the inverse of the above-mentioned example value.

[0499] Through this method, the first information can directly indicate the proportion of total power (that is, the ratio of the power of the data signal sent on a shared time-frequency resource to the total power on the shared time-frequency resource), thereby simplifying the calculation of the power parameters of the first DMRS signal.

[0500] In some embodiments, the power parameter of the first DMRS signal can be the ratio of the power of the first DMRS signal sent on a shared time-frequency resource (i.e., the first time-frequency resource) to the power of the data signal sent on the shared time-frequency resource.

[0501] For example, taking any RE in FIG5 as an example, the power parameter of the first DMRS signal may be the ratio of the power of the first DMRS signal transmitted on any RE in FIG5 to the power of the data signal transmitted on that RE. For example, if the power of the first DMRS signal transmitted on an RE is 1, and the power of the data signal transmitted on the RE is 2, then the power parameter of the first DMRS signal is 0.5; if converted to a dB value, the power parameter of the first DMRS signal is -3dB.

[0502] For example, taking Figure 6 as an example, the power parameter of the first DMRS signal can be the ratio of the power sent by the first DMRS signal on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the power of the data signal sent on the RE.

[0503] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0504] Through this method, compared with the first information directly indicating the proportion of total power, the first information can make the dynamic value range of the power parameter of the first DMRS signal smaller by indicating the ratio of the power sent by the first DMRS signal on a shared time-frequency resource to the power sent by the data signal on the shared time-frequency resource, thereby improving the granularity of the indication and reducing the overhead of the indication.

[0505] In some embodiments, the power parameter of the first DMRS signal can be the ratio of the power of the data signal sent on a shared time-frequency resource (i.e., the first time-frequency resource) to the power of the first DMRS signal sent on the shared time-frequency resource.

[0506] For example, taking any RE in FIG5 as an example, the power parameter of the first DMRS signal may be the ratio of the power of the data signal transmitted on any RE in FIG5 to the power of the first DMRS signal transmitted on that RE. For example, if the power of the first DMRS signal transmitted on an RE is 1, and the power of the data signal transmitted on the RE is 2, then the power parameter of the first DMRS signal is 2; if converted to a dB value, the power parameter of the first DMRS signal is 3 dB.

[0507] For example, taking Figure 6 as an example, the power parameter of the first DMRS signal can be the ratio of the power of the data signal sent on one of the REs corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the power of the first DMRS signal sent on the RE.

[0508] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0509] Through this method, compared with the first information directly indicating the proportion of total power, the first information indicates the ratio of the power of the data signal sent on a shared time-frequency resource to the power of the first DMRS signal sent on the shared time-frequency resource, which can make the dynamic value range of the power parameter of the first DMRS signal smaller, thereby improving the granularity of the indication and reducing the overhead of the indication.

[0510] In some embodiments, the power parameter of the first DMRS signal may be the ratio of the power of the first DMRS signal sent on a shared time-frequency resource to the total power on a time-frequency resource (the time-frequency resource is not limited to being a shared time-frequency resource).

[0511] Exemplarily, taking FIG6 as an example, the power parameter of the first DMRS signal may be the ratio of the power of the first DMRS signal transmitted on an RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers on the 0th symbol to the total power of one of the REs in FIG6 (which may be an RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers in FIG6 , or other REs). For example, if the power of the first DMRS signal transmitted on an RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers is 0.5, and the total power of one of the REs in FIG6 is 1, then the power parameter of the first DMRS signal is 0.5; if converted to a dB value, the power parameter of the first DMRS signal is -3dB.

[0512] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0513] It should be noted that the power parameter of the first DMRS signal may also be the ratio of the total power on a time-frequency resource (the time-frequency resource is not limited to being a shared time-frequency resource) to the power of the first DMRS signal transmitted on a shared time-frequency resource. In this scenario, when the ratio is a linear value, the candidate value of the ratio may be the reciprocal of the above-mentioned example value; when the ratio is a dB value, the candidate value of the ratio may be the inverse of the above-mentioned example value.

[0514] Through this method, the first information can directly indicate the proportion of total power (that is, the power parameter of the first DMRS signal can be the ratio of the power sent by the first DMRS signal on a shared time-frequency resource to the total power of a time-frequency resource), thereby simplifying the calculation of the power parameter of the first DMRS signal.

[0515] In some embodiments, the power parameter of the first DMRS signal may be the ratio of the power of the data signal sent on a shared time-frequency resource to the total power on a time-frequency resource (the time-frequency resource is not limited to being a shared time-frequency resource).

[0516] Exemplarily, taking Figure 6 as an example, the power parameter of the first DMRS signal may be the ratio of the power of the data signal transmitted on an RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers to the total power of one of the REs in Figure 6 (which may be an RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers in Figure 6, or other REs). For example, if the power of the data signal transmitted on an RE corresponding to the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers is 0.5, and the total power of one of the REs in Figure 6 is 1, then the power parameter of the data signal is 0.5; if converted to a dB value, the power parameter of the first DMRS signal is -3dB.

[0517] It should be noted that, when the ratio is a linear value or a dB value, the candidate values ​​of the ratio can be understood by referring to the description in the aforementioned embodiment, and for the sake of brevity, they will not be repeated here.

[0518] It should be noted that the power parameter of the data signal can also be the ratio of the total power on a time-frequency resource (the time-frequency resource is not limited to being a shared time-frequency resource) to the power of the data signal sent on a shared time-frequency resource. In this scenario, when the ratio is a linear value, the candidate value of the ratio can be the reciprocal of the above-mentioned example value; when the ratio is a dB value, the candidate value of the ratio can be the inverse of the above-mentioned example value.

[0519] Through this method, the first information can directly indicate the proportion of total power (that is, the power parameter of the data signal can be the ratio of the power of the data signal sent on a shared time-frequency resource to the total power of a time-frequency resource), thereby simplifying the calculation of the power parameter of the first DMRS signal.

[0520] On the second aspect, the first information indicates the frequency domain position of the time-frequency resources occupied by the first DMRS signal.

[0521] Through this method, the first terminal device can flexibly change the frequency domain position of the time-frequency resources occupied by the first DMRS signal, thereby better facilitating multi-user multiplexing and reducing DMRS signal interference between users.

[0522] In some embodiments, the frequency domain position of the time-frequency resource occupied by the first DMRS signal may be determined according to one or more of the following parameters indicated by the first information:

[0523] Frequency domain density of time-frequency resources occupied by the first DMRS signal;

[0524] A frequency domain offset value of the time-frequency resource occupied by the first DMRS signal;

[0525] The frequency domain pattern of the time-frequency resources occupied by the first DMRS signal.

[0526] The first information may indicate the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range, and the frequency domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range.

[0527] Furthermore, the RE density of the time-frequency resources occupied by the first DMRS signal within one RB range may be a first value, and there is a mapping relationship between the first value and the number of REs of the time-frequency resources occupied by the first DMRS signal within one RB range.

[0528] Exemplarily, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0529] In some embodiments, when the first value is less than or equal to 1, the number of REs of the time-frequency resources occupied by the first DMRS signal within an RB range may be the product of the first value and the total number of REs within the RB range.

[0530] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, and the RE density of the time-frequency resources occupied by the first DMRS signal within the RB range is 1 / 2 (that is, the first value is 1 / 2), then it can be obtained that the number of REs of the time-frequency resources occupied by the first DMRS signal within the RB range is 12*1 / 2=6.

[0531] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, and the RE density of the time-frequency resources occupied by the first DMRS signal within the RB range is 1 (that is, the first value is 1), then it can be obtained that the number of REs of the time-frequency resources occupied by the first DMRS signal within the RB range is 12.

[0532] In some other embodiments, when the first value is greater than 1, the number of REs of the time-frequency resources occupied by the first DMRS signal within one RB range is equal to the first value.

[0533] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, and the RE density of the time-frequency resources occupied by the first DMRS signal within the RB range is 6 (that is, the first value is 6), then it can be obtained that the number of REs of the time-frequency resources occupied by the first DMRS signal within the RB range is 6.

[0534] Through this method, when the first information indicates the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range, after the first terminal device receives the first information, it can flexibly change the RE density of the time-frequency resources occupied by the first DMRS signal according to the wireless environment, so as to better match the current channel and improve system performance.

[0535] The first information may indicate an RE offset value of the time-frequency resource occupied by the first DMRS signal, and the frequency domain position of the time-frequency resource occupied by the first DMRS signal may be determined according to the RE offset value of the time-frequency resource occupied by the first DMRS signal.

[0536] For example, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, the RE offset value of the time-frequency resources occupied by the first DMRS signal is offset_RE, and the number of REs of the time-frequency resources occupied by the first DMRS signal within the RB range is Y, then the time-frequency resources occupied by the first DMRS signal are on the offset_RE, offset_RE+12 / Y, offset_RE+2*12 / Y subcarriers (or REs) and other subcarriers within an RB range.

[0537] For example, as shown in Figure 8, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, taking Y=6 and offset_RE=0 as an example, the time-frequency resources occupied by the first DMRS signal are on the 0th, 2nd, 4th, 6th, 8th, and 10th subcarriers within the RB range.

[0538] For another example, as shown in Figure 9, assuming that there are 12 REs (corresponding to 12 subcarriers) within an RB range, taking Y=6 and offset_RE=1 as an example, the time-frequency resources occupied by the first DMRS signal are on the 1st, 3rd, 5th, 7th, 9th, and 11th subcarriers within the RB range.

[0539] It should be noted that the examples shown in FIG8 and FIG9 are all based on one symbol, that is, one column of first DMRS signals, and can be directly extended to multiple columns of first DMRS signals.

[0540] Through this method, when the first information indicates the RE offset value of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can flexibly change the RE (or subcarrier) allocation of the time-frequency resources occupied by the first DMRS signal, thereby being more conducive to multi-user multiplexing and reducing DMRS signal interference between multiple users.

[0541] It should be noted that the first information may simultaneously indicate the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range, and the RE offset value of the time-frequency resources occupied by the first DMRS signal.

[0542] It should also be noted that the first information may only indicate the RE offset value of the time-frequency resources occupied by the first DMRS signal. At this time, the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range can be determined by predefined rules and / or network device configuration.

[0543] The first information may indicate the RE pattern of the time-frequency resources occupied by the first DMRS signal, and the frequency domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the RE pattern of the time-frequency resources occupied by the first DMRS signal.

[0544] Furthermore, the RE pattern of the time-frequency resources occupied by the first DMRS signal may be determined by a predefined rule and / or network device configuration.

[0545] It should be noted that, through the RE pattern of the time-frequency resources occupied by the first DMRS signal, it is possible to obtain which REs on the RE pattern can be used to transmit the first DMRS signal.

[0546] Exemplarily, the two RE patterns shown in Figures 8 and 9 may be predefined, and the first information may indicate the RE pattern used by the time-frequency resources occupied by the first DMRS signal. For example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the RE pattern shown in Figure 8; for another example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the RE pattern shown in Figure 9.

[0547] Through this method, when the first information indicates the RE pattern of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can flexibly change the RE (or subcarrier) allocation of the time-frequency resources occupied by the first DMRS signal, thereby being more conducive to multi-user multiplexing and reducing DMRS signal interference between multiple users.

[0548] The first information may indicate the RB density of the time-frequency resources occupied by the first DMRS signal, and the frequency domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the RB density of the time-frequency resources occupied by the first DMRS signal.

[0549] Furthermore, the RB density of the time-frequency resources occupied by the first DMRS signal may be a second value. Assuming that one RB in every X RBs is used to transmit the first DMRS signal, there is a mapping relationship between the second value and the value of X.

[0550] Exemplarily, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0551] In some embodiments, when the second value is less than or equal to 1, the value of X is the reciprocal of the second value.

[0552] Exemplarily, assuming that the RB density of the time-frequency resources occupied by the first DMRS signal is 0.5 (ie, the second value is 0.5), the value of X is 1 / 0.5=2, that is, one RB in every two RBs is used to transmit the first DMRS signal.

[0553] Exemplarily, assuming that the RB density of the time-frequency resources occupied by the first DMRS signal is 1 (ie, the second value is 1), the value of X is 1, that is, each RB is used to transmit the first DMRS signal.

[0554] In other embodiments, when the second value is greater than 1, the value of X is equal to the second value.

[0555] Exemplarily, assuming that the RB density of the time-frequency resources occupied by the first DMRS signal is 2 (ie, the second value is 2), the value of X is 2, that is, one RB in every two RBs is used to transmit the first DMRS signal.

[0556] It should be noted that, at least part of REs in an RB of time-frequency resources occupied by the first DMRS signal are used to transmit the first DMRS signal.

[0557] Furthermore, the at least part of the REs may be one RE in an RB, or multiple REs in an RB (not all REs in an RB), or all REs in an RB, which is not limited in the embodiments of the present application.

[0558] Through this method, when the first information indicates the RB density of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can change the RB density of the time-frequency resources occupied by the first DMRS signal with a larger granularity according to the wireless environment, which is more flexible and more conducive to multi-user multiplexing, reducing DMRS signal interference between multiple users.

[0559] The first information may indicate an RB offset value of the time-frequency resource occupied by the first DMRS signal, and the frequency domain position of the time-frequency resource occupied by the first DMRS signal may be determined according to the RB offset value of the time-frequency resource occupied by the first DMRS signal.

[0560] Exemplarily, assuming that the RB offset value of the time-frequency resources occupied by the first DMRS signal is offset_RB, and one RB in every X RBs is used to transmit the first DMRS signal, the time-frequency resources occupied by the first DMRS signal are on the offset_RBth, offset_RB+Xth, offset_RB+2*Xth, offset_RB+3*Xth RBs and other RBs.

[0561] For example, as shown in FIG10 , taking X=2 and offset_RB=0 as an example, the time-frequency resources occupied by the first DMRS signal are on the 0th, 2nd, and 4th RBs.

[0562] For another example, as shown in FIG11 , taking X=2 and offset_RB=1 as an example, the time-frequency resources occupied by the first DMRS signal are on the 1st, 3rd, and 5th RBs.

[0563] It should be noted that the examples shown in FIG10 and FIG11 are all based on one symbol, that is, one column of first DMRS signals, and can be directly extended to multiple columns of first DMRS signals.

[0564] It should also be noted that, in the embodiment of the present application, the identification of the RB can be in the following two ways:

[0565] The first type: The RB identifier is the internal identifier of the RB actually used for transmission (or scheduling). For example, the RB with the smallest identifier is recorded as the 0th RB, and so on. Assuming that the six RBs in Figure 10 are used for this transmission, the identifiers of the six RBs correspond to the 0th, 1st, 2nd, 3rd, 4th, 5th, and 6th identifiers respectively.

[0566] The second type: The RB identifier is based on the identifier of the RB in the system or in the BWP. For example, the i-th RB corresponds to the identifier of the RB in the system or in the BWP i. For example, assuming that the four RBs in Figure 10 (corresponding identifiers 2, 3, 4, and 5) are used in this transmission, the time-frequency resources occupied by the first DMRS signal are on the second and fourth RBs; for example, assuming that the four RBs in Figure 11 (corresponding identifiers 2, 3, 4, and 5) are used in this transmission, the time-frequency resources occupied by the first DMRS signal are on the third and fifth RBs.

[0567] Through this method, when the first information indicates the RB offset value of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can flexibly change the RB allocation of the time-frequency resources occupied by the first DMRS signal, thereby being more conducive to multi-user multiplexing and reducing DMRS signal interference between multiple users.

[0568] It should be noted that the first information may simultaneously indicate the RB density of the time-frequency resources occupied by the first DMRS signal and the RB offset value of the time-frequency resources occupied by the first DMRS signal.

[0569] It should also be noted that the first information may only indicate the RB offset value of the time-frequency resources occupied by the first DMRS signal. In this case, the RB density of the time-frequency resources occupied by the first DMRS signal may be determined by predefined rules and / or network device configuration.

[0570] The first information may indicate the RB pattern of the time-frequency resources occupied by the first DMRS signal, and the frequency domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the RB pattern of the time-frequency resources occupied by the first DMRS signal.

[0571] Furthermore, the RB pattern of the time-frequency resources occupied by the first DMRS signal may be determined by a predefined rule and / or a network device configuration.

[0572] It should be noted that, through the RB pattern of the time-frequency resources occupied by the first DMRS signal, it is possible to obtain which RBs on the RB pattern can be used to transmit the first DMRS signal.

[0573] For example, the two RB patterns shown in Figures 10 and 11 may be predefined, and the first information may indicate the RB pattern used by the time-frequency resources occupied by the first DMRS signal. For example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the RB pattern shown in Figure 10; for another example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the RB pattern shown in Figure 11.

[0574] Through this method, when the first information indicates the RB pattern of the first DMRS signal occupying the time-frequency resources, after the first terminal device receives the first information, it can flexibly change the RB allocation of the first DMRS signal occupying the time-frequency resources, thereby being more conducive to multi-user multiplexing and reducing DMRS signal interference between multiple users.

[0575] It should be noted that the first information may indicate one or more of the above information. For example, the first information may indicate the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range, and the RB density of the time-frequency resources occupied by the first DMRS signal; for another example, the first information may indicate the RE density of the time-frequency resources occupied by the first DMRS signal within an RB range, the RB density of the time-frequency resources occupied by the first DMRS signal, the RE offset value of the time-frequency resources occupied by the first DMRS signal, and the RB offset value of the time-frequency resources occupied by the first DMRS signal; for another example, the first information may indicate the RE offset value of the time-frequency resources occupied by the first DMRS signal, and the RB offset value of the time-frequency resources occupied by the first DMRS signal; for another example, the first information may indicate the RB density of the time-frequency resources occupied by the first DMRS signal, and the RB offset value of the time-frequency resources occupied by the first DMRS signal.

[0576] In some embodiments, the first information may indicate the RBs and / or REs within an RB of the time-frequency resources occupied by the first DMRS signal by means of a bitmap (i.e., a first bitmap). For example, the first information may indicate the REs within an RB used to transmit the first DMRS signal by means of a 12-bit or 16-bit bitmap. The REs corresponding to a value of 1 in the bitmap are used to transmit the first DMRS signal.

[0577] In some embodiments, the first information may indicate the RB and / or RE within an RB of the time-frequency resources occupied by the first DMRS signal by directly indicating the RB and / or RE. For example, the first information may indicate the RB and / or RE within an RB used to transmit the first DMRS signal by indicating the identifier of the RE and / or the identifier of the RB.

[0578] In a third aspect, the first information indicates the time domain position of the time-frequency resources occupied by the first DMRS signal.

[0579] Through this method, the first information indicates the time domain position of the time-frequency resources occupied by the first DMRS signal, so that after receiving the first information, the first terminal device can flexibly change the time domain position of the time-frequency resources occupied by the first DMRS signal according to the current channel conditions, thereby achieving a better balance between the total power of the DMRS signal and the channel estimation performance, thereby improving system performance.

[0580] In some embodiments, the time domain position of the time-frequency resource occupied by the first DMRS signal may be determined according to one or more of the following parameters indicated by the first information:

[0581] The time domain density of the time-frequency resources occupied by the first DMRS signal;

[0582] A time domain offset value of the time-frequency resources occupied by the first DMRS signal;

[0583] The time domain pattern of the time-frequency resources occupied by the first DMRS signal.

[0584] The first information may indicate the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot, and the time domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the symbol density of the time-frequency resources occupied by the first DMRS signal.

[0585] Furthermore, the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot may be a third value, and there is a mapping relationship between the third value and the number of symbols of the time-frequency resources occupied by the first DMRS signal within a time slot.

[0586] Exemplarily, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0587] In some embodiments, when the third value is less than or equal to 1, the number of symbols of the time-frequency resources occupied by the first DMRS signal within a time slot may be the product of the third value and the total number of symbols within the time slot.

[0588] For example, assuming that there are 14 symbols in a time slot range, the symbol density of the time-frequency resources occupied by the first DMRS signal in the time slot range is 1 / 2 (that is, the third value is 1 / 2), then it can be obtained that the number of symbols of the time-frequency resources occupied by the first DMRS signal in the time slot range is 14*1 / 2=7.

[0589] For example, assuming that there are 14 symbols in a time slot range, and the symbol density of the time-frequency resources occupied by the first DMRS signal in the time slot range is 1 (that is, the third value is 1), then it can be obtained that the number of symbols of the time-frequency resources occupied by the first DMRS signal in the time slot range is 14.

[0590] In some other embodiments, when the third value is greater than 1, the number of symbols of the time-frequency resources occupied by the first DMRS signal within a time slot is equal to the third value.

[0591] For example, assuming that there are 14 symbols in a time slot range, and the symbol density of the time-frequency resources occupied by the first DMRS signal in the time slot range is 6 (that is, the third value is 6), then it can be obtained that the number of symbols of the time-frequency resources occupied by the first DMRS signal in the time slot range is 6.

[0592] Through this method, when the first information indicates the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot, after the first terminal device receives the first information, it can flexibly change the symbol density of the time-frequency resources occupied by the first DMRS signal according to the wireless environment, so as to better match the current channel and improve system performance.

[0593] In some embodiments, among symbols used for data signal transmission, the first symbol and / or the last symbol both contain a first DMRS signal. Taking six symbols for data signal transmission as an example, assuming one out of every two symbols contains a first DMRS signal, the symbols containing the first DMRS signal may be as shown in FIG16 , where symbols 0, 2, and 4 in FIG16 contain the first DMRS signal. If both the first and last symbols in the symbols used for data signal transmission are required to contain the first DMRS signal, the symbols containing the first DMRS signal may be as shown in FIG17 , where symbols 0, 2, 4, and 5 in FIG17 contain the first DMRS signal.

[0594] In some embodiments, when the time-domain density of the time-frequency resources occupied by the first DMRS signal satisfies a first preset range, the first symbol and / or the last symbol of the symbols used for data signal transmission both contain the first DMRS signal. The first preset range may be predefined by a protocol or configured by a network device.

[0595] Exemplarily, when the symbol density of the time-frequency resources occupied by the first DMRS signal is less than or equal to 1, and the symbol density of the time-frequency resources occupied by the first DMRS signal satisfies (0, 1 / 3] (that is, the first preset range is (0, 1 / 3]), the last symbol in the symbols used for data signal transmission is required to contain the first DMRS signal. As shown in Figure 19, the time domain density of the time-frequency resources occupied by the first DMRS signal is 1 / 2, so the last symbol in the symbols used for data signal transmission does not contain the first DMRS signal; as shown in Figure 20, the time domain density of the time-frequency resources occupied by the first DMRS signal is 1 / 3, so the last symbol in the symbols used for data signal transmission contains the first DMRS signal.

[0596] In some embodiments, when the interval between the last symbol used for data signal transmission and the previous symbol containing the first DMRS signal is greater than or equal to a first threshold, the last symbol of the symbols used for data signal transmission is required to contain the first DMRS signal. The first threshold may be predefined by a protocol or configured by a network device.

[0597] For example, when the first threshold is 2, if the interval between the last symbol and the previous symbol containing the first DMRS signal in the symbols used for data signal transmission is greater than or equal to 2, the last symbol is required to contain the first DMRS signal. As shown in Figure 21, the interval between the last symbol and the previous symbol containing the first DMRS signal is less than 2 (taking the case where the data signal is transmitted using 5 symbols), and thus the last symbol in the symbols used for data signal transmission does not contain the first DMRS signal. As shown in Figure 22, the interval between the last symbol and the previous symbol containing the first DMRS signal is equal to 2 (taking the case where the data signal is transmitted using 6 symbols), and thus the last symbol in the symbols used for data signal transmission contains the first DMRS signal.

[0598] The first information may indicate a symbol offset value of the time-frequency resource occupied by the first DMRS signal, and the time domain position of the time-frequency resource occupied by the first DMRS signal may be determined according to the symbol offset value of the time-frequency resource occupied by the first DMRS signal.

[0599] For example, assuming that there are 14 symbols in a time slot, the symbol offset value of the time-frequency resources occupied by the first DMRS signal is offset_symbol, and the number of symbols of the time-frequency resources occupied by the first DMRS signal in the time slot is Q, then the time-frequency resources occupied by the first DMRS signal are the offset_symbol, symbol+14 / Q, offset_symbol+2*14 / Q symbols and other symbols in a time slot.

[0600] For example, as shown in FIG12 , assuming that there are 14 symbols in a time slot, taking Q=7 and offset_symbol=0 as an example, the time-frequency resources occupied by the first DMRS signal are on the 0th, 2nd, 4th, 6th, 8th, 10th, and 12th symbols in the time slot.

[0601] For another example, as shown in FIG13 , assuming that there are 14 symbols within a time slot, taking Q=7 and offset_symbol=1 as an example, the time-frequency resources occupied by the first DMRS signal are on the 1st, 3rd, 5th, 7th, 9th, 11th, and 13th symbols within the time slot.

[0602] Through this method, when the first information indicates the symbol offset value of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can flexibly change the symbol allocation of the time-frequency resources occupied by the first DMRS signal, so as to better match the current channel, be more conducive to multi-user multiplexing, and reduce DMRS signal interference between multiple users.

[0603] It should be noted that the first information may simultaneously indicate the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot, and the symbol offset value of the time-frequency resources occupied by the first DMRS signal.

[0604] It should also be noted that the first information may only indicate the symbol offset value of the time-frequency resources occupied by the first DMRS signal. At this time, the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot range can be determined by predefined rules and / or network equipment configuration.

[0605] The first information may indicate a symbol pattern of the time-frequency resources occupied by the first DMRS signal, and the time domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the symbol pattern of the time-frequency resources occupied by the first DMRS signal.

[0606] Furthermore, the symbol pattern of the time-frequency resources occupied by the first DMRS signal may be determined by a predefined rule and / or a network device configuration.

[0607] It should be noted that, through the symbol pattern of the time-frequency resources occupied by the first DMRS signal, it can be obtained which symbols on the symbol pattern can be used to transmit the first DMRS signal.

[0608] Exemplarily, the two symbol patterns shown in Figures 12 and 13 may be predefined, and the first information may indicate the symbol pattern used by the time-frequency resources occupied by the first DMRS signal. For example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the symbol pattern shown in Figure 12; for another example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the symbol pattern shown in Figure 13.

[0609] Through this method, when the first information indicates the symbol pattern of the first DMRS signal occupying the time-frequency resources, after the first terminal device receives the first information, it can flexibly change the symbol allocation of the first DMRS signal occupying the time-frequency resources, thereby being more conducive to multi-user multiplexing and reducing DMRS signal interference between multiple users.

[0610] The first information may indicate the time slot density of the time-frequency resources occupied by the first DMRS signal, and the time domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the time slot density of the time-frequency resources occupied by the first DMRS signal.

[0611] Furthermore, the time slot density of the time-frequency resources occupied by the first DMRS signal may be a fourth value. Assuming that one time slot in every P time slots is used to transmit the first DMRS signal, there is a mapping relationship between the fourth value and the value of P.

[0612] Exemplarily, the mapping relationship may be a one-to-one mapping relationship or other mapping relationships, which is not limited in the embodiments of the present application.

[0613] In some embodiments, when the fourth value is less than or equal to 1, the value of P is the reciprocal of the fourth value.

[0614] Exemplarily, assuming that the time slot density of the time-frequency resources occupied by the first DMRS signal is 0.5 (ie, the fourth value is 0.5), the value of P is 1 / 0.5=2, that is, one time slot in every two time slots is used to transmit the first DMRS signal.

[0615] Exemplarily, assuming that the time slot density of the time-frequency resources occupied by the first DMRS signal is 1 (ie, the fourth value is 1), the value of P is 1, that is, each time slot is used to transmit the first DMRS signal.

[0616] In other embodiments, when the fourth value is greater than 1, the value of P is equal to the fourth value.

[0617] Exemplarily, assuming that the time slot density of the time-frequency resource occupied by the first DMRS signal is 2 (ie, the fourth value is 2), the value of P is 2, that is, one time slot in every two time slots is used to transmit the first DMRS signal.

[0618] It should be noted that the first DMRS signal occupies at least part of the symbols in a time slot of the time-frequency resource for transmitting the first DMRS signal.

[0619] Furthermore, the at least partial symbol may be a symbol in a time slot, or multiple symbols in a time slot (not all symbols in a time slot), or all symbols in a time slot, which is not limited in the embodiments of the present application.

[0620] Through this method, when the first information indicates the time slot density of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can change the time slot density of the time-frequency resources occupied by the first DMRS signal with a larger granularity according to the wireless environment, which is more flexible and more conducive to multi-user multiplexing, reducing DMRS signal interference between multiple users.

[0621] The first information may indicate a time slot offset value of the time-frequency resource occupied by the first DMRS signal, and the time domain position of the time-frequency resource occupied by the first DMRS signal may be determined according to the time slot offset value of the time-frequency resource occupied by the first DMRS signal.

[0622] For example, assuming that the time slot offset value of the time-frequency resources occupied by the first DMRS signal is offset_slot, and one time slot in every P time slots is used to transmit the first DMRS signal, the time-frequency resources occupied by the first DMRS signal are the offset_slot, offset_slot+P, offset_slot+2*P, offset_slot+3*P and other time slots.

[0623] For example, as shown in FIG14 , taking P=3 and offset_slot=0 as an example, the time-frequency resources occupied by the first DMRS signal are in the 0th, 3rd, and 6th time slots.

[0624] For another example, as shown in FIG15 , taking P=3 and offset_slot=2 as an example, the time-frequency resources occupied by the first DMRS signal are in the 2nd, 5th, and 8th time slots.

[0625] It should be noted that, in the embodiment of the present application, the timeslot can be identified in the following two ways:

[0626] The first type: The time slot identifier is the internal identifier of the time slot actually used for transmission (or scheduling). For example, among the multiple time slots actually used for transmission, the identifiers of the multiple time slots can be sorted from smallest to largest, thereby obtaining the 0th time slot, the 1st time slot, the 2nd time slot, and so on. For example, as shown in Figure 14, there are 9 time slots actually used for transmission, and the identifiers of these 9 time slots are 0, 1, 2, 3, 4, 5, 6, 7, and 8, respectively.

[0627] The second type: The time slot identifier is the identifier of the time slot in the system. For example, the i-th time slot corresponds to the time slot identifier in the system i. For example, assuming there are four time slots used for transmission in the system, and the identifiers of these four time slots are 2, 3, 4, and 5, as shown in Figure 14, the identifier of the time slot used to transmit the first DMRS signal is 3; as shown in Figure 15, the identifiers of the time slots used to transmit the first DMRS signal are 2 and 5, respectively.

[0628] Through this method, when the first information indicates the time slot offset value of the time-frequency resources occupied by the first DMRS signal, after the first terminal device receives the first information, it can flexibly change the time slot allocation of the time-frequency resources occupied by the first DMRS signal, so as to better match the current channel, be more conducive to multi-user multiplexing, and reduce DMRS signal interference between multiple users.

[0629] It should be noted that the first information may simultaneously indicate the time slot density of the time-frequency resources occupied by the first DMRS signal and the time slot offset value of the time-frequency resources occupied by the first DMRS signal.

[0630] It should also be noted that the first information may only indicate the time slot offset value of the time-frequency resource occupied by the first DMRS signal. In this case, the time slot density of the time-frequency resource occupied by the first DMRS signal may be determined by predefined rules and / or network device configuration.

[0631] The first information may indicate a time slot pattern of the time-frequency resources occupied by the first DMRS signal, and the time domain position of the time-frequency resources occupied by the first DMRS signal may be determined according to the time slot pattern of the time-frequency resources occupied by the first DMRS signal.

[0632] Furthermore, the time slot pattern of the time-frequency resources occupied by the first DMRS signal may be determined by a predefined rule and / or a network device configuration.

[0633] It should be noted that, through the time slot pattern of the time-frequency resources occupied by the first DMRS signal, it can be obtained which time slots in the time slot pattern can be used to transmit the first DMRS signal.

[0634] Exemplarily, the two time slot patterns shown in Figures 14 and 15 may be predefined, and the first information may indicate the time slot pattern used by the time-frequency resources occupied by the first DMRS signal. For example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the time slot pattern shown in Figure 14; for another example, the first information may indicate that the time-frequency resources occupied by the first DMRS signal use the time slot pattern shown in Figure 15.

[0635] Through this method, when the first information indicates the time slot pattern of the first DMRS signal occupying the time-frequency resources, after the first terminal device receives the first information, it can flexibly change the time slot allocation of the first DMRS signal occupying the time-frequency resources, thereby being more conducive to multi-user multiplexing and reducing DMRS signal interference between multiple users.

[0636] It should be noted that the first information may indicate one or more of the above information. For example, the first information may indicate the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot range, and the time slot density of the time-frequency resources occupied by the first DMRS signal; for another example, the first information may indicate the symbol density of the time-frequency resources occupied by the first DMRS signal within a time slot range, the time slot density of the time-frequency resources occupied by the first DMRS signal, the symbol offset value of the time-frequency resources occupied by the first DMRS signal, and the time slot offset value of the time-frequency resources occupied by the first DMRS signal; for another example, the first information may indicate the symbol offset value of the time-frequency resources occupied by the first DMRS signal, and the time slot offset value of the time-frequency resources occupied by the first DMRS signal; for another example, the first information may indicate the time slot density of the time-frequency resources occupied by the first DMRS signal, and the time slot offset value of the time-frequency resources occupied by the first DMRS signal.

[0637] In some embodiments, the first information may indicate the time slot of the time-frequency resource occupied by the first DMRS signal and / or the symbols within a time slot by means of a bitmap (i.e., a second bitmap). For example, the first information may indicate the symbols within a time slot used to transmit the first DMRS signal by means of a 14-bit bitmap. The symbols corresponding to values ​​of 1 in the bitmap are used to transmit the first DMRS signal.

[0638] In some embodiments, the first information may indicate the time slot of the time-frequency resource occupied by the first DMRS signal and / or the symbol within a time slot by directly indicating the time slot and / or the symbol. For example, the first information may indicate the time slot used to transmit the first DMRS signal and / or the symbol within a time slot by indicating the identifier of the symbol and / or the identifier of the time slot.

[0639] In a fourth aspect, the first information indicates a sequence of the first DMRS signal.

[0640] In some embodiments, the first information may indicate the type of the sequence of the first DMRS signal; and / or the manner in which the sequence of the first DMRS signal is generated.

[0641] Exemplarily, the type of the sequence of the first DMRS signal may be a Gold sequence, a ZC sequence, an M sequence, etc., which is not limited in the embodiment of the present application.

[0642] It should be noted that the sequence generation method of the first DMRS signal may be predefined or determined by other methods, and this embodiment of the present application does not limit this.

[0643] It should also be noted that the sequence generation method of the first DMRS signal may be a generation method of different types of sequences.

[0644] Through this method, the first information can flexibly indicate the sequence of the first DMRS signal, thereby optimizing the sequences between different users, reducing interference between sequences, and improving system performance.

[0645] In a fifth aspect, the first information indicates the port information of the first DMRS signal.

[0646] It should be noted that after receiving the first information, the first terminal device can determine the different ports of the first DMRS signal.

[0647] In some embodiments, the port information of the first DMRS signal may include one or more of the following:

[0648] (1) The maximum number of ports of the first DMRS signal. For example, the first information may indicate that the maximum number of ports of the first DMRS signal is 2. In actual transmission, the network device or the second terminal device may determine whether to use one port or two ports of the first DMRS signal when transmitting based on the number of layers actually transmitted; the network device or the second terminal device may determine whether to use one port or two ports of the first DMRS signal when transmitting based on scheduling information (for example, the number of layers of the transmitted data signal); wherein the time-frequency resources corresponding to the ports may be determined by predefined rules and / or configured by the network device; and the sequence of the first DMRS signal corresponding to the ports may be determined by predefined rules and / or configured by the network device.

[0649] (2) The sequence corresponding to the port of the first DMRS signal. For example, the first information may indicate two different sets of sequence generation parameters, wherein each set of sequence generation parameters may include one or more sequence generation parameters, and each set of sequence generation parameters may correspond to the sequence generation of one port. In actual transmission, the network device or the second terminal device may determine the corresponding sequence generation parameter according to the port of the first DMRS signal actually used to obtain the corresponding sequence, and the first terminal device may also determine the sequence corresponding to the first DMRS signal according to the scheduling information (for example, which port or ports of the first DMRS signal are used by the network device or the second terminal device).

[0650] (3) The time domain resources corresponding to the ports of the first DMRS signal. Different ports may correspond to different time domain resources.

[0651] (4) The frequency domain resources corresponding to the ports of the first DMRS signal. Different ports may correspond to different frequency domain resources.

[0652] (5) The ports of the first DMRS signal adopt a CDM mode. The code division multiplexing mode may be an OCC mode, that is, different ports of the first pilot signal may adopt different orthogonal vectors and / or corresponding orthogonal vectors.

[0653] (6) The port of the first DMRS signal adopts the FDM method and / or the corresponding frequency domain resources.

[0654] (7) The port of the first DMRS signal adopts the TDM method and / or the corresponding time domain resources.

[0655] Through this method, the first information can flexibly indicate different ports of the first DMRS signal, thereby reducing sequence interference of DMRS signals between multiple layers and improving system performance.

[0656] In a sixth aspect, the first information indicates a sequence generation parameter of the first DMRS signal.

[0657] Through this method, the first information can flexibly indicate the sequence generation of the first DMRS signal, thereby optimizing the sequences between different users, reducing interference between sequences, and improving system performance.

[0658] Exemplarily, the first information may indicate one or more groups of sequence generation parameters of the first DMRS signal, wherein each group of sequence generation parameters of the first DMRS signal may include one or more sequence generation parameters.

[0659] Exemplarily, the second terminal device or the network device may select the sequence generation parameters of the first DMRS signal through DCI signaling.

[0660] Through this method, the second terminal device or the network device can select the sequence generation parameters of the first DMRS signal through DCI signaling, thereby improving flexibility.

[0661] It should be noted that, when there are multiple sequence generation parameters for the first DMRS signal, different sequence generation parameters may correspond to different ports of the first DMRS signal.

[0662] Through this method, the first information can flexibly indicate the sequence generation of the corresponding port of the first DMRS signal, thereby reducing sequence interference of DMRS signals between multiple layers and improving system performance.

[0663] In some embodiments, the sequence generation parameters of the first DMRS signal may include one or more of the following:

[0664] An identifier of a time slot occupied by the first DMRS signal in the time-frequency resource;

[0665] An identifier of a symbol of a time-frequency resource occupied by the first DMRS signal; and / or an identifier of a symbol of a time-frequency resource occupied by the first DMRS signal within a time slot, a subframe, or a frame;

[0666] An identifier of the SNF where the first DMRS signal is located;

[0667] An identifier of a cell where the first DMRS signal is located, such as an identifier of a physical layer cell;

[0668] An identifier of a carrier on which the first DMRS signal is located, where the carrier may be a carrier in carrier aggregation;

[0669] an identifier of a port of the first DMRS signal, wherein the sequence corresponding to the port i of the first DMRS signal may be generated based on the identifier i of the port;

[0670] Scrambling parameters of the first DMRS signal;

[0671] The identifier of the control channel of the data signal, such as the group identifier corresponding to CORESET; and

[0672] Other parameters related to network device configuration.

[0673] It should be noted that the sequence generation parameters of each group of first DMRS signals indicated by the first information may include one or more of the above sequence generation parameters.

[0674] By using this method, the sequence of the first DMRS signal can be randomized, sequence interference of DMRS signals between multiple layers can be reduced, and system performance can be improved.

[0675] Seventhly, the first information indicates the granularity of the configuration.

[0676] In some embodiments, the first information can be configured for different objects:

[0677] The first information may be configured for a cell (Cell), that is, the first information may be information in the configuration information of a cell;

[0678] The first information may be configured for one carrier, that is, the first information may be configuration information in one carrier;

[0679] The first information may be for a BWP configuration (the BWP may be the BWP mentioned in the NR), that is, the first information may be configuration information in a BWP;

[0680] The first information may be for PDSCH configuration, that is, the first information may be information in configuration information of a PDSCH channel;

[0681] The first information may be for PDCCH configuration, that is, the first information may be information in configuration information of a PDCCH channel;

[0682] The first information may be for PUSCH configuration, that is, the first information may be information in configuration information of a PUSCH channel;

[0683] The first information may be for PUCCH configuration, that is, the first information may be information in configuration information of a PUCCH channel;

[0684] The first information may be for PSSCH configuration, that is, the first information may be information in configuration information of a PSSCH channel;

[0685] The first information may be for PSCCH configuration, that is, the first information may be information in configuration information of a PSCCH channel;

[0686] The first information may be for PSFCH configuration, that is, the first information may be information in configuration information of a PSFCH channel.

[0687] By using this method, the first information is configured based on one or more of the above objects, and different configuration granularities can be obtained, thereby satisfying different flexibility.

[0688] In an embodiment of the present application, the first terminal device can receive a data signal based on the first information. At this time, the first terminal device can determine the first DMRS signal based on the first information and receive the corresponding data signal; the first terminal device can send a data signal based on the first information. At this time, the first terminal device can determine the first DMRS signal based on the first information and send the corresponding data signal.

[0689] It should be noted that, for the transmission of uplink data signals and the reception of downlink data signals, the first terminal device can receive two first messages, one of which corresponds to the transmission of uplink data signals and the other corresponds to the reception of downlink data signals. This can be extended to more first messages, which will not be further described in detail in the embodiments of the present application.

[0690] In some embodiments, before the first terminal device receives the first information, the first terminal device may send capability information of the first terminal device to the second terminal device or the network device, where the capability information of the first terminal device indicates that the first terminal device supports the first DMRS signal.

[0691] Furthermore, the first terminal device may send capability information of the first terminal device through RRC signaling, MAC CE signaling, etc.

[0692] It should be noted that the capability information of the first terminal device may be frequency band-specific. In other words, different frequency bands may independently report the capability information of the corresponding first terminal device. Based on this, the first terminal device can have greater freedom. For example, the first terminal device may support reporting the capability information of the corresponding first terminal device on one or certain frequency bands, but not support reporting the capability information of the corresponding first terminal device on other frequency bands, thereby enabling more first terminal devices to support reporting the capability information of the corresponding first terminal device.

[0693] It should also be noted that the capability information of the first terminal device may be capabilities for a frequency band combination, that is, different frequency band combinations may independently report the capability information of the corresponding first terminal device. Based on this, the first terminal device can have greater freedom. For example, the first terminal device may support reporting the capability information of the corresponding first terminal device for one or some frequency band combinations, but not support reporting the capability information of the corresponding first terminal device for other frequency band combinations, thereby enabling more first terminal devices to support reporting the capability information of the corresponding first terminal device.

[0694] It should also be noted that the capability information of the first terminal device can be the capability of each frequency band in the frequency band combination, that is, each frequency band in different frequency band combinations can independently report the capability information of the corresponding first terminal device. Based on this, the first terminal device can have greater freedom. For example, the first terminal device may not support reporting the capability information of the corresponding first terminal device under a certain carrier aggregation combination, but support reporting the capability information of the corresponding first terminal device on certain frequency bands in another CA combination, thereby enabling more first terminal devices to support reporting the capability information of the corresponding first terminal devices.

[0695] It should also be noted that the capability information of the first terminal device can be the capability of each carrier on each frequency band in the frequency band combination, that is, different component carriers in the frequency bands in different frequency band combinations can independently report the capability information of the corresponding first terminal device. Based on this, the first terminal device can have greater freedom. For example, different frequency band combinations can independently report the capability information of the corresponding first terminal device, and different carriers on a frequency band can also independently report the capability information of the corresponding first terminal device, so that more first terminal devices can support reporting the capability information of the corresponding first terminal devices.

[0696] It should also be noted that the capability information of the first terminal device may be specific to the FR capability, that is, different FRs may independently report the capability information of the corresponding first terminal device. Based on this, the first terminal device may have greater freedom. For example, there are two FRs, respectively denoted as low-frequency FR (i.e., FR1) and high-frequency FR (i.e., FR2). FR1 may not support reporting the capability information of the corresponding first terminal device, while FR2 may support reporting the capability information of the corresponding first terminal device, thereby enabling more first terminal devices to support reporting the capability information of the corresponding first terminal device.

[0697] It should also be noted that the capability information of the first terminal device may be specific to the capabilities of the first terminal device. Based on this, when the first terminal device reports the capability information of the first terminal device, it can be considered that the first terminal device can support reporting the capability information of the first terminal device on all frequency bands, thereby reducing the signaling overhead of the capability reporting of the first terminal device.

[0698] In an embodiment of the present application, when the first DMRS signal occupies more time-frequency resources, at least part of the time-frequency resources occupied by the first DMRS signal (i.e., shared time-frequency resources) can also be occupied by data signals, thereby increasing the time-frequency resources occupied by the data signal and improving the transmission rate and transmission reliability of the data signal.

[0699] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0700] It should also be understood that in the various method embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0701] FIG23 is a schematic diagram of the structure of a communication device 2300 provided in an embodiment of the present application, which is applied to a first device. The first device may be the first terminal device in the aforementioned embodiment. As shown in FIG23 , the communication device 2300 may include:

[0702] The first receiving unit 2310 is configured to receive first information, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0703] In some embodiments, the first information indicates a power parameter of the first pilot signal.

[0704] In some embodiments, the power parameter of the first pilot signal includes one or more of the following:

[0705] a ratio of the power of the first pilot signal sent on the first time-frequency resource to the total power on the second time-frequency resource;

[0706] a ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource;

[0707] a ratio of the power of the first pilot signal sent on the first time-frequency resource to the power of the data signal sent on the first time-frequency resource; and

[0708] a ratio of the power of the data signal sent on the first time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource;

[0709] The first time-frequency resource is any one of at least some of the time-frequency resources; the second time-frequency resource is any one of at least some of the time-frequency resources, or the second time-frequency resource is any one of the other time-frequency resources except at least some of the time-frequency resources.

[0710] In some embodiments, the first information indicates a frequency domain position of a time-frequency resource occupied by the first pilot signal.

[0711] In some embodiments, the frequency domain position is determined according to one or more of the following parameters indicated by the first information: frequency domain density; frequency domain offset value; and frequency domain pattern.

[0712] In some embodiments, the first information indicates the frequency domain position through a first bitmap; and / or, the first information indicates the frequency domain position through an identifier of a frequency domain resource.

[0713] In some embodiments, the first information indicates a time domain position of a time-frequency resource occupied by the first pilot signal.

[0714] In some embodiments, the time domain position is determined according to one or more of the following parameters indicated by the first information: a time domain density; a time domain offset value; and a time domain pattern.

[0715] In some embodiments, the first information indicates the time domain position through a second bitmap; and / or, the first information indicates the time domain position through an identifier of a time domain resource.

[0716] In some embodiments, the time domain position includes the first symbol and / or the last symbol occupied by the data signal.

[0717] In some embodiments, in one or more of the following situations, the time domain position includes the first symbol and / or the last symbol occupied by the data signal:

[0718] The time domain density of the time-frequency resources occupied by the first pilot signal satisfies a first preset range;

[0719] The interval between the last symbol occupied by the data signal and the target symbol is greater than or equal to a first threshold, and the target symbol is a symbol containing the first pilot signal before the last symbol.

[0720] In some embodiments, the first information indicates a sequence of the first pilot signal.

[0721] In some embodiments, the first information indicates a sequence generation parameter of the first pilot signal.

[0722] In some embodiments, the sequence generation parameters of the first pilot signal include one or more of the following:

[0723] An identifier of a time domain resource in the time-frequency resources occupied by the first pilot signal;

[0724] An identifier of the system frame number in which the first pilot signal resides;

[0725] an identifier of the cell where the first pilot signal is located;

[0726] an identifier of the carrier where the first pilot signal is located;

[0727] an identifier of a port of the first pilot signal;

[0728] scrambling parameters of the first pilot signal; and

[0729] Identifier of the control channel of the data signal.

[0730] In some embodiments, the first information indicates port information of the first pilot signal.

[0731] In some embodiments, the port information of the first pilot signal includes one or more of the following:

[0732] The maximum number of ports for the first pilot signal;

[0733] A sequence corresponding to the port of the first pilot signal;

[0734] The time domain resource corresponding to the port of the first pilot signal;

[0735] Frequency domain resources corresponding to the port of the first pilot signal;

[0736] The port of the first pilot signal adopts code division multiplexing mode;

[0737] The port of the first pilot signal adopts frequency division multiplexing; and

[0738] The port of the first pilot signal adopts a time division multiplexing mode.

[0739] In some embodiments, the first information is configured for one or more of the following objects:

[0740] community;

[0741] carrier wave;

[0742] Bandwidth part;

[0743] Physical downlink shared channel;

[0744] Physical downlink control channel;

[0745] Physical uplink shared channel;

[0746] Physical uplink control channel;

[0747] Physical sidelink shared channel;

[0748] Physical sidelink control channel; and,

[0749] Physical sideline feedback channel.

[0750] In some embodiments, as shown in FIG23 , the communication device 2300 may further include a first sending unit 2320 , wherein:

[0751] The first sending unit 2320 is configured to send capability information of the first device, where the capability information of the first device indicates that the first device supports the first pilot signal.

[0752] In some embodiments, the capability information of the first device is a capability for any of the following objects:

[0753] frequency band;

[0754] frequency band combination;

[0755] Each band in the band combination;

[0756] Each carrier on each band in the band combination;

[0757] Frequency band range;

[0758] First device.

[0759] In some embodiments, the first receiving unit 2310 is further configured to receive second information, where the second information is used to configure a second pilot signal, and the time-frequency resources occupied by the second pilot signal are not used to transmit data signals.

[0760] In some embodiments, the first information and / or the second information is carried by first signaling, and the first signaling includes one or more of the following:

[0761] Broadcast messages;

[0762] System messages;

[0763] Radio Resource Control (RRC) signaling;

[0764] Media Access Control Unit MAC CE signaling;

[0765] Downlink control information DCI;

[0766] Random access message; and,

[0767] Dedicated signaling.

[0768] In some embodiments, the first signaling includes first indication information, where the first indication information is used to indicate that the first signaling carries the first information and / or the second information.

[0769] In some embodiments, the first signaling includes a first information field and a second information field, the first information field is used to carry the first information, and the second information field is used to carry the second information.

[0770] An embodiment of the present application provides a communications apparatus, wherein a first device can receive first information, the first information being used to configure a first pilot signal, wherein at least a portion of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal. Thus, after receiving the first signal, the first device can learn that the first pilot signal to be configured occupies at least a portion of the same time-frequency resources as the data signal. Thus, if the first pilot signal occupies more time-frequency resources, at least a portion of the time-frequency resources occupied by the first pilot signal can also be occupied by the data signal, thereby increasing the time-frequency resources occupied by the data signal and improving the transmission rate and reliability of the data signal.

[0771] Those skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

[0772] FIG24 is a schematic diagram of the structure of a communication device 2400 provided in an embodiment of the present application, which is applied to a second device. The second device may be the second terminal device or the network device in the aforementioned embodiment. As shown in FIG24 , the communication device 2400 may include:

[0773] The second sending unit 2410 is configured to send first information to the first device, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal.

[0774] In some embodiments, the first information indicates a power parameter of the first pilot signal.

[0775] In some embodiments, the power parameter of the first pilot signal includes one or more of the following:

[0776] a ratio of the power of the first pilot signal sent on the first time-frequency resource to the total power on the second time-frequency resource;

[0777] a ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource;

[0778] a ratio of the power of the first pilot signal sent on the first time-frequency resource to the power of the data signal sent on the first time-frequency resource; and

[0779] a ratio of the power of the data signal sent on the first time-frequency resource to the power of the first pilot signal sent on the first time-frequency resource;

[0780] The first time-frequency resource is any one of at least some of the time-frequency resources; the second time-frequency resource is any one of at least some of the time-frequency resources, or the second time-frequency resource is any one of the other time-frequency resources except at least some of the time-frequency resources.

[0781] In some embodiments, the first information indicates a frequency domain position of a time-frequency resource occupied by the first pilot signal.

[0782] In some embodiments, the frequency domain position is determined according to one or more of the following parameters indicated by the first information: frequency domain density; frequency domain offset value; and frequency domain pattern.

[0783] In some embodiments, the first information indicates the frequency domain position through a first bitmap; and / or, the first information indicates the frequency domain position through an identifier of a frequency domain resource.

[0784] In some embodiments, the first information indicates a time domain position of a time-frequency resource occupied by the first pilot signal.

[0785] In some embodiments, the time domain position is determined according to one or more of the following parameters indicated by the first information: a time domain density; a time domain offset value; and a time domain pattern.

[0786] In some embodiments, the first information indicates the time domain position through a second bitmap; and / or, the first information indicates the time domain position through an identifier of a time domain resource.

[0787] In some embodiments, the time domain position includes the first symbol and / or the last symbol occupied by the data signal.

[0788] In some embodiments, in one or more of the following situations, the time domain position includes the first symbol and / or the last symbol occupied by the data signal:

[0789] The time domain density of the time-frequency resources occupied by the first pilot signal satisfies a first preset range;

[0790] The interval between the last symbol occupied by the data signal and the target symbol is greater than or equal to a first threshold, and the target symbol is a symbol containing the first pilot signal before the last symbol.

[0791] In some embodiments, the first information indicates a sequence of the first pilot signal.

[0792] In some embodiments, the first information indicates a sequence generation parameter of the first pilot signal.

[0793] In some embodiments, the sequence generation parameters of the first pilot signal include one or more of the following:

[0794] An identifier of a time domain resource in the time-frequency resources occupied by the first pilot signal;

[0795] An identifier of the system frame number in which the first pilot signal resides;

[0796] an identifier of the cell where the first pilot signal is located;

[0797] an identifier of the carrier where the first pilot signal is located;

[0798] an identifier of a port of the first pilot signal;

[0799] scrambling parameters of the first pilot signal; and

[0800] Identifier of the control channel of the data signal.

[0801] In some embodiments, the first information indicates port information of the first pilot signal.

[0802] In some embodiments, the port information of the first pilot signal includes one or more of the following:

[0803] The maximum number of ports for the first pilot signal;

[0804] A sequence corresponding to the port of the first pilot signal;

[0805] The time domain resource corresponding to the port of the first pilot signal;

[0806] Frequency domain resources corresponding to the port of the first pilot signal;

[0807] The port of the first pilot signal adopts code division multiplexing mode;

[0808] The port of the first pilot signal adopts frequency division multiplexing; and

[0809] The port of the first pilot signal adopts a time division multiplexing mode.

[0810] In some embodiments, the first information is configured for one or more of the following objects:

[0811] community;

[0812] carrier wave;

[0813] Bandwidth part;

[0814] Physical downlink shared channel;

[0815] Physical downlink control channel;

[0816] Physical uplink shared channel;

[0817] Physical uplink control channel;

[0818] Physical sidelink shared channel;

[0819] Physical sidelink control channel; and,

[0820] Physical sideline feedback channel.

[0821] In some embodiments, as shown in FIG24 , the communication device 2400 may further include a second receiving unit 2420 , wherein:

[0822] The second receiving unit 2420 is configured to receive capability information of the first device, where the capability information of the first device indicates that the first device supports the first pilot signal.

[0823] In some embodiments, the capability information of the first device is a capability for any of the following objects:

[0824] frequency band;

[0825] frequency band combination;

[0826] Each band in the band combination;

[0827] Each carrier on each band in the band combination;

[0828] Frequency band range;

[0829] First device.

[0830] In some embodiments, the second sending unit 2410 is further configured to send second information to the first device, where the second information is used to configure a second pilot signal, and the time-frequency resources occupied by the second pilot signal are not used to transmit data signals.

[0831] In some embodiments, the first information and / or the second information is carried by first signaling, and the first signaling includes one or more of the following:

[0832] Broadcast messages;

[0833] System messages;

[0834] Radio Resource Control (RRC) signaling;

[0835] Media Access Control Unit MAC CE signaling;

[0836] Downlink control information DCI;

[0837] Random access message; and,

[0838] Dedicated signaling.

[0839] In some embodiments, the first signaling includes first indication information, where the first indication information is used to indicate that the first signaling carries the first information and / or the second information.

[0840] In some embodiments, the first signaling includes a first information field and a second information field, the first information field is used to carry the first information, and the second information field is used to carry the second information.

[0841] An embodiment of the present application provides a communications apparatus in which a second device can send first information to a first device. The first information is used to configure a first pilot signal, and at least a portion of the time-frequency resources occupied by the first pilot signal is used to transmit a data signal. In this manner, if the first pilot signal occupies more time-frequency resources, at least a portion of the time-frequency resources occupied by the first pilot signal can also be occupied by the data signal, thereby increasing the time-frequency resources occupied by the data signal and improving the transmission rate and reliability of the data signal.

[0842] Those skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

[0843] Figure 25 is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 2500 can be a first device or a second device; wherein the first device can be the first terminal device in the aforementioned embodiment, and the second device can be the second terminal device or network device in the aforementioned embodiment. The communication device 2500 shown in Figure 25 may include a processor 2510 and a memory 2520, wherein:

[0844] The memory 2520 may be used to store computer-executable instructions;

[0845] The processor 2510 is connected to the memory 2520 and is used to implement the method in the embodiment of the present application by executing computer-executable instructions.

[0846] The memory 2520 may be a separate device from the processor 2510 or may be integrated into the processor 2510 .

[0847] In some embodiments, as shown in FIG. 25 , the communication device 2500 may further include a transceiver 2530 , and the processor 2510 may control the transceiver 2530 to communicate with other devices. Specifically, it may send information or data to other devices, or receive information or data sent by other devices.

[0848] The transceiver 2530 may include a transmitter and a receiver. The transceiver 2530 may further include an antenna, and the number of antennas may be one or more.

[0849] In some embodiments, the communication device 2500 may be the first device of an embodiment of the present application, and the communication device 2500 may implement the corresponding processes implemented by the first device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0850] In some embodiments, the communication device 2500 may be the second device of the embodiment of the present application, and the communication device 2500 may implement the corresponding processes implemented by the second device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0851] FIG26 is a schematic structural diagram of a chip provided in an embodiment of the present application. The chip 2600 shown in FIG26 includes a processor 2610 and a memory 2620, wherein:

[0852] The processor 2610 can call and run a computer program from the memory 2620, so that the device equipped with the chip executes the method in the embodiment of the present application.

[0853] The memory 2620 may be a separate device independent of the processor 2610 , or may be integrated into the processor 2610 .

[0854] In some embodiments, the chip 2600 may further include an input interface 2630. The processor 2610 may control the input interface 2630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0855] In some embodiments, the chip 2600 may further include an output interface 2640. The processor 2610 may control the output interface 2640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0856] In some embodiments, the chip can be applied to the first device (such as the first terminal device) in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0857] In some embodiments, the chip can be applied to the second device (such as a second terminal device, or a network device) in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0858] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0859] FIG27 is a schematic block diagram of a communication system according to an embodiment of the present application. As shown in FIG27 , the communication system 2700 includes a first device 2710 and a second device 2720 .

[0860] The first device 2710 may be the first terminal device in the aforementioned embodiment, and the second device 2720 may be the second terminal device or network device in the aforementioned embodiment. The first device 2710 may be used to implement the corresponding functions implemented by the first device in the aforementioned method, and the second device 2720 may be used to implement the corresponding functions implemented by the second device in the aforementioned method. For the sake of brevity, these details are not further described here.

[0861] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0862] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0863] It should be understood that the above-mentioned memories are exemplary and not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0864] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by at least one processor, the method in the embodiment of the present application is implemented.

[0865] In some embodiments, the computer-readable storage medium can be applied to the first device (such as the first terminal device) in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0866] In some embodiments, the computer-readable storage medium can be applied to the second device (such as a second terminal device, or a network device) in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0867] An embodiment of the present application also provides a computer program product, which includes a computer storage medium, the computer storage medium storing a computer program, and the computer program including instructions that can be executed by at least one processor. When the instructions are executed by at least one processor, the method in the embodiment of the present application is implemented.

[0868] In some embodiments, the computer program product can be applied to the first device (such as the first terminal device) in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0869] In some embodiments, the computer program product can be applied to the second device (such as a second terminal device, or a network device) in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0870] The embodiments of the present application also provide a computer program, which enables a computer to execute the method in the embodiments of the present application.

[0871] In some embodiments, the computer program can be applied to the first device (such as the first terminal device) in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0872] In some embodiments, the computer program can be applied to a second device (such as a second terminal device, or a network device) in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0873] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0874] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0875] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0876] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0877] 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.

[0878] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0879] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, the method comprising: The first device receives first information, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal are used to transmit a data signal.

2. The method according to claim 1, wherein: The first information indicates a power parameter of the first pilot signal.

3. The method according to claim 2, wherein: The power parameter of the first pilot signal includes one or more of the following: a ratio of power of the first pilot signal sent on the first time-frequency resource to total power on the second time-frequency resource; a ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource; a ratio of power of the first pilot signal sent on the first time-frequency resource to power of the data signal sent on the first time-frequency resource; as well as, a ratio of power of the data signal sent on the first time-frequency resource to power of the first pilot signal sent on the first time-frequency resource; The first time-frequency resource is any one of the at least part of the time-frequency resources; the second time-frequency resource is any one of the at least part of the time-frequency resources, or the second time-frequency resource is any one of the other time-frequency resources except the at least part of the time-frequency resources.

4. The method according to any one of claims 1 to 3, wherein: The first information indicates the frequency domain position of the time-frequency resources occupied by the first pilot signal.

5. The method according to claim 4, wherein: The frequency domain position is determined according to one or more of the following parameters indicated in the first information: Frequency domain density; A frequency domain offset value; and, Frequency domain pattern.

6. The method according to claim 4 or 5, wherein: The first information indicates a frequency domain position of a time-frequency resource occupied by the first pilot signal, including: The first information indicates the frequency domain position through a first bitmap; and / or, The first information indicates the frequency domain position through an identifier of a frequency domain resource.

7. The method according to any one of claims 1 to 6, wherein: The first information indicates the time domain position of the time-frequency resources occupied by the first pilot signal.

8. The method according to claim 7, wherein: The time domain position is determined according to one or more of the following parameters indicated in the first information: Time domain density; A time domain offset value; and, Time domain pattern.

9. The method according to claim 7 or 8, wherein: The first information indicates a time domain position of a time-frequency resource occupied by the first pilot signal, including: The first information indicates the time domain position through a second bitmap; and / or, The first information indicates the time domain position through an identifier of a time domain resource.

10. The method according to any one of claims 7 to 9, wherein: The time domain position includes the first symbol and / or the last symbol occupied by the data signal.

11. The method according to claim 10, wherein: In one or more of the following cases, the time domain position includes the first symbol and / or the last symbol occupied by the data signal: The time domain density of the time-frequency resources occupied by the first pilot signal satisfies a first preset range; The interval between the last symbol occupied by the data signal and the target symbol is greater than or equal to a first threshold, and the target symbol is a symbol containing the first pilot signal before the last symbol.

12. The method according to any one of claims 1 to 11, wherein: The first information indicates a sequence of the first pilot signal.

13. The method according to any one of claims 1 to 12, wherein: The first information indicates a sequence generation parameter of the first pilot signal.

14. The method according to claim 13, wherein: The sequence generation parameters of the first pilot signal include one or more of the following: An identifier of a time domain resource in the time-frequency resource occupied by the first pilot signal; An identifier of a system frame number in which the first pilot signal resides; An identifier of a cell where the first pilot signal is located; An identifier of a carrier where the first pilot signal is located; an identifier of a port of the first pilot signal; a scrambling parameter of the first pilot signal; and An identifier of a control channel of the data signal.

15. The method according to any one of claims 1 to 14, wherein: The first information indicates port information of the first pilot signal.

16. The method according to claim 15, wherein: The port information of the first pilot signal includes one or more of the following: The maximum number of ports of the first pilot signal; A sequence corresponding to the port of the first pilot signal; The time domain resource corresponding to the port of the first pilot signal; The frequency domain resource corresponding to the port of the first pilot signal; The port of the first pilot signal adopts code division multiplexing; The port of the first pilot signal adopts frequency division multiplexing mode; and, The port of the first pilot signal adopts a time division multiplexing mode.

17. The method according to any one of claims 1 to 16, wherein: The first information is configured for one or more of the following objects: Community; Carrier; Bandwidth part; Physical downlink shared channel; Physical downlink control channel; Physical uplink shared channel; Physical uplink control channel; Physical sideline shared channel; a physical sidelink control channel; and, Physical sideline feedback channel.

18. The method according to any one of claims 1 to 17, wherein: Before the first device receives the first information, the method further includes: The first device sends capability information of the first device, where the capability information of the first device indicates that the first device supports the first pilot signal.

19. The method according to claim 18, wherein: The capability information of the first device is a capability for any of the following objects: Frequency band; Frequency band combination; Each band in the band combination; Each carrier on each band in the band combination; Frequency band range; The first device.

20. The method according to any one of claims 1 to 19, wherein: The method further comprises: The first device receives second information, where the second information is used to configure a second pilot signal, and the time-frequency resources occupied by the second pilot signal are not used to transmit the data signal.

21. The method according to claim 20, wherein: The first information and / or the second information is carried by first signaling, and the first signaling includes one or more of the following: Broadcast messages; System messages; Radio Resource Control (RRC) signaling; Media Access Control Unit MAC CE signaling; Downlink control information DCI; a random access message; and, Dedicated signaling.

22. The method according to claim 21, wherein: The first signaling includes first indication information, where the first indication information is used to indicate that the first signaling carries the first information and / or the second information.

23. The method according to claim 21, wherein: The first signaling includes a first information field and a second information field, the first information field is used to carry the first information, and the second information field is used to carry the second information.

24. A communication method, the method comprising: The second device sends first information to the first device, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal are used to transmit a data signal.

25. The method according to claim 24, wherein: The first information indicates a power parameter of the first pilot signal.

26. The method according to claim 25, wherein: The power parameter of the first pilot signal includes one or more of the following: a ratio of power of the first pilot signal sent on the first time-frequency resource to total power on the second time-frequency resource; a ratio of the power of the data signal sent on the first time-frequency resource to the total power on the second time-frequency resource; a ratio of power of the first pilot signal sent on the first time-frequency resource to power of the data signal sent on the first time-frequency resource; as well as, a ratio of power of the data signal sent on the first time-frequency resource to power of the first pilot signal sent on the first time-frequency resource; The first time-frequency resource is any one of the at least part of the time-frequency resources; the second time-frequency resource is any one of the at least part of the time-frequency resources, or the second time-frequency resource is any one of the other time-frequency resources except the at least part of the time-frequency resources.

27. The method according to any one of claims 24 to 26, wherein: The first information indicates the frequency domain position of the time-frequency resources occupied by the first pilot signal.

28. The method according to claim 27, wherein: The frequency domain position is determined according to one or more of the following parameters indicated by the first information: Frequency domain density; A frequency domain offset value; and, Frequency domain pattern.

29. The method according to claim 27 or 28, wherein: The first information indicates a frequency domain position of a time-frequency resource occupied by the first pilot signal, including: The first information indicates the frequency domain position through a first bitmap; and / or, The first information indicates the frequency domain position through an identifier of a frequency domain resource.

30. The method according to any one of claims 24 to 29, wherein: The first information indicates the time domain position of the time-frequency resources occupied by the first pilot signal.

31. The method according to claim 30, wherein: The time domain position is determined according to one or more of the following parameters indicated by the first information: Time domain density; A time domain offset value; and, Time domain pattern.

32. The method according to claim 30 or 31, wherein: The first information indicates a time domain position of a time-frequency resource occupied by the first pilot signal, including: The first information indicates the time domain position through a second bitmap; and / or, The first information indicates the time domain position through an identifier of a time domain resource.

33. The method according to any one of claims 30 to 32, wherein: The time domain position includes the first symbol and / or the last symbol occupied by the data signal.

34. The method of claim 33, wherein: In one or more of the following cases, the time domain position includes the first symbol and / or the last symbol occupied by the data signal: The time domain density of the time-frequency resources occupied by the first pilot signal satisfies a first preset range; The interval between the last symbol occupied by the data signal and the target symbol is greater than or equal to a first threshold, and the target symbol is a symbol containing the first pilot signal before the last symbol.

35. The method according to any one of claims 24 to 34, wherein: The first information indicates a sequence of the first pilot signal.

36. The method according to any one of claims 24 to 35, wherein: The first information indicates a sequence generation parameter of the first pilot signal.

37. The method of claim 36, wherein: The sequence generation parameters of the first pilot signal include one or more of the following: An identifier of a time domain resource in the time-frequency resource occupied by the first pilot signal; An identifier of a system frame number in which the first pilot signal resides; An identifier of a cell where the first pilot signal is located; An identifier of a carrier where the first pilot signal is located; an identifier of a port of the first pilot signal; a scrambling parameter of the first pilot signal; and An identifier of a control channel of the data signal.

38. The method according to any one of claims 24 to 37, wherein: The first information indicates port information of the first pilot signal.

39. The method of claim 38, wherein: The port information of the first pilot signal includes one or more of the following: The maximum number of ports of the first pilot signal; A sequence corresponding to the port of the first pilot signal; The time domain resource corresponding to the port of the first pilot signal; The frequency domain resource corresponding to the port of the first pilot signal; The port of the first pilot signal adopts code division multiplexing; The port of the first pilot signal adopts frequency division multiplexing mode; and, The port of the first pilot signal adopts a time division multiplexing mode.

40. The method according to any one of claims 24 to 39, wherein: The first information is configured for one or more of the following objects: Community; Carrier; Bandwidth part; Physical downlink shared channel; Physical downlink control channel; Physical uplink shared channel; Physical uplink control channel; Physical sideline shared channel; a physical sidelink control channel; and, Physical sideline feedback channel.

41. The method according to any one of claims 24 to 40, wherein: Before the second device sends the first information to the first device, the method further includes: The second device receives capability information of the first device, where the capability information of the first device indicates that the first device supports the first pilot signal.

42. The method according to claim 41, wherein: The capability information of the first device is a capability for any of the following objects: Frequency band; Frequency band combination; Each band in the band combination; Each carrier on each band in the band combination; Frequency band range; The first device.

43. A method according to any one of claims 24 to 42, wherein: The method further comprises: The second device sends second information to the first device, where the second information is used to configure a second pilot signal, and the time-frequency resources occupied by the second pilot signal are not used to transmit the data signal.

44. The method of claim 43, wherein: The first information and / or the second information is carried by first signaling, and the first signaling includes one or more of the following: Broadcast messages; System messages; Radio Resource Control (RRC) signaling; Media Access Control Unit MAC CE signaling; Downlink control information DCI; a random access message; and, Dedicated signaling.

45. The method of claim 44, wherein: The first signaling includes first indication information, where the first indication information is used to indicate that the first signaling carries the first information and / or the second information.

46. ​​The method of claim 44, wherein: The first signaling includes a first information field and a second information field, the first information field is used to carry the first information, and the second information field is used to carry the second information.

47. A communication device, applied to a first device, the device comprising: The first receiving unit is configured to receive first information, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal are used to transmit a data signal.

48. A communication device, applied to a second device, the device comprising: The second sending unit is configured to send first information to the first device, where the first information is used to configure a first pilot signal, and at least part of the time-frequency resources occupied by the first pilot signal are used to transmit data signals.

49. A communication device comprising: A memory for storing computer executable instructions; A processor, connected to the memory, configured to implement the method of any one of claims 1 to 23 by executing the computer executable instructions; or, to implement the method of any one of claims 24 to 46.

50. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 23, or executes a method as claimed in any one of claims 24 to 46.

51. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by at least one processor, implements the method according to any one of claims 1 to 23, or implements the method according to any one of claims 24 to 46.

52. A computer program product, comprising a computer storage medium storing a computer program, wherein the computer program comprises instructions executable by at least one processor, and when the instructions are executed by the at least one processor, the method of any one of claims 1 to 23 is implemented, or the method of any one of claims 24 to 46 is implemented.

53. A computer program, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 23, or to implement the method according to any one of claims 24 to 46.

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