Parameter configuration method and related product

Abstract

The embodiment of the application discloses a parameter configuration method and related products, comprising: a network device indicates preset parameters of a phase tracking reference signal (PT-RS) to a terminal, the preset parameters of the PT-RS are configured for a bandwidth part (BWP) of the terminal, and the preset parameters are used to indicate resource information required by the terminal when transmitting the PT-RS on the BWP. The embodiment of the application is beneficial to improving the flexibility of PT-RS configuration BWP.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a parameter configuration method and related products. Background Technology

[0002] In New Radio (NR), a carrier can contain multiple Bandwidth Parts (BWPs). For a terminal, only one uplink BWP can be activated for uplink transmission at any given time. Similarly, only one downlink BWP can be activated for downlink transmission at any given time. Which BWP is currently activated by the terminal is indicated by Downlink Control Information (DCI), and the BWP used for terminal transmission can be dynamically switched among multiple BWPs within a single carrier. How to efficiently configure the terminal to transmit on different BWPs is a technical problem that needs to be solved. Summary of the Invention

[0003] The embodiments of this application provide a parameter configuration method and related products, which are beneficial to improving the flexibility of PT-RS configuration of BWP.

[0004] In a first aspect, embodiments of this application provide a parameter configuration method, including:

[0005] The network device indicates preset parameters of the phase tracking reference signal PT-RS to the terminal. The preset parameters of PT-RS are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0006] Secondly, embodiments of this application provide a parameter configuration method, including:

[0007] The terminal receives preset parameters of the phase tracking reference signal PT-RS from the network device. The preset parameters of the PT-RS are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0008] Thirdly, embodiments of this application provide a network device that has the function of implementing the behavior of the first network device in the above-described method design. The function can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the network device includes a processor configured to support the network device in performing the corresponding functions in the above-described method. Further, the network device may also include a transceiver for supporting communication between the network device and a terminal. Further, the network device may also include a memory coupled to the processor, which stores necessary program instructions and data for the network device.

[0009] Fourthly, embodiments of this application provide a terminal that has the function of implementing the terminal behavior in the above-described method design. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the terminal includes a processor configured to support the terminal in performing the corresponding functions in the above-described method. Further, the terminal may also include a transceiver for supporting communication between the terminal and a network device. Further, the terminal may also include a memory coupled to the processor, which stores necessary program instructions and data for the terminal.

[0010] Fifthly, embodiments of this application provide a network device including a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing steps in any method of the first aspect of this application.

[0011] In a sixth aspect, embodiments of this application provide a terminal including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing steps in any of the methods of the second aspect of embodiments of this application.

[0012] In a seventh aspect, embodiments of this application provide a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in any method of the first aspect of embodiments of this application.

[0013] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in any method of the second aspect of embodiments of this application.

[0014] In a ninth aspect, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in any method of the first aspect of this application. The computer program product may be a software installation package.

[0015] In a tenth aspect, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in any method of the second aspect of embodiments of this application. The computer program product may be a software installation package.

[0016] As can be seen from this embodiment, the network device indicates the preset parameters of the Phase Tracking Reference Signal (PT-RS) to the terminal. These preset parameters are configured for the terminal's bandwidth portion (BWP). The preset parameters indicate the resource information required for the terminal to transmit PT-RS on the BWP. Since the preset parameters can determine the resource information required for the terminal to transmit PT-RS on the BWP, when switching BWPs, the terminal only needs to obtain the preset parameters of the PT-RS corresponding to the BWP to be used to flexibly determine the resource information required for transmitting that PT-RS, thus improving the flexibility of configuring the BWP with PT-RS. Attached Figure Description

[0017] The accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0018] Figure 1 This application provides an example of a protocol architecture for a dual-connection transmission mode that supports data replication.

[0019] Figure 2 This is a flowchart illustrating a parameter configuration method provided in an embodiment of this application;

[0020] Figure 3 This is a flowchart illustrating a parameter configuration method provided in an embodiment of this application;

[0021] Figure 4 This is a flowchart illustrating a parameter configuration method provided in an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the structure of a network device provided in an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0024] Figure 7 This is a schematic diagram of the structure of a network device provided in an embodiment of this application;

[0025] Figure 8 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0027] Figure 1The wireless communication system involved in this application is illustrated. The wireless communication system can operate on a high-frequency band and may be a future-evolving fifth-generation (5G) mobile communication system, a new radio (NR) system, a machine-to-machine (M2M) communication system, etc. As shown, the wireless communication system 100 may include: one or more network devices 101, one or more terminals 103, and core network devices 105. Among them, the network device 101 may be a base station, which can be used to communicate with one or more terminals, or to communicate with one or more base stations with partial terminal functions (such as communication between macro base stations and micro base stations, such as access points). The base station may be a base transceiver station (BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, an evolved Node B (eNB) in an LTE system, or a base station in a 5G system or a NR system. Additionally, the base station can also be an Access Point (AP), Trans Transmission Point (TRP), Central Unit (CU), or other network entities, and may include some or all of the functions of the above network entities. Core network equipment 105 includes core network-side equipment such as a Serving Gateway (SGW). Terminal 103 can be distributed throughout the entire wireless communication system 100, and can be stationary or mobile. In some embodiments of this application, terminal 103 can be a mobile device (such as a smartphone), a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, a mobile client, etc.

[0028] It needs to be explained that, Figure 1 The wireless communication system 100 shown is only for the purpose of more clearly illustrating the technical solution of this application and does not constitute a limitation on this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new service scenarios, the technical solution provided by this application is also applicable to similar technical problems.

[0029] The relevant technologies involved in this application are described below.

[0030] Currently, in modern NR designs, a terminal can be configured with multiple downlink DL BWPs or uplink UL BWPs, and can transmit relatively dynamically on different BWPs through methods such as DCI / Media Access Control Layer Control Unit (MAC CE).

[0031] However, in the current phase-tracking reference signals (PT-RS) parameter configuration, some parameters are already configured for BWPs, meaning that different BWPs can be configured with their own parameters. But some parameters are not yet configured, which affects the flexibility of PT-RS usage.

[0032] To address the aforementioned problems, this application proposes the following embodiments, which will be described in detail below with reference to the accompanying drawings.

[0033] Please see Figure 2 , Figure 2 This application provides a parameter configuration method, applied to the above-described example communication system. The method includes:

[0034] In section 201, the network device indicates preset parameters of the Phase Tracking Reference Signal (PT-RS) to the terminal. The preset parameters of the PT-RS are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0035] The PT-RS is used to suppress the impact of phase noise on system performance.

[0036] In a specific implementation, the network device can indicate preset parameters of the phase tracking reference signal PT-RS to the terminal through radio resource control (RRC) signaling.

[0037] As can be seen, in this embodiment, the network device indicates the preset parameters of the Phase Tracking Reference Signal (PT-RS) to the terminal. These preset parameters are configured for the terminal's Bandwidth Part (BWP) and are used to indicate the resource information required for the terminal to transmit PT-RS on the BWP. Since the preset parameters can determine the resource information required for the terminal to transmit PT-RS on the BWP, when switching BWPs, the terminal only needs to obtain the preset parameters of the PT-RS corresponding to the BWP to be used to flexibly determine the resource information required for transmitting that PT-RS, which improves the flexibility of PT-RS configuration for BWPs. For example, in different Bandwidth Part (BWPs), a terminal may be paired with different terminals using Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology (referred to as user pairing). Thus, for different BWPs, the network device can configure different preset parameters for PT-RS to flexibly and better perform multi-user pairing with other terminals on different BWPs.

[0038] In one possible example, the preset parameters include at least one, and each preset parameter corresponds to one or more BWPs.

[0039] In one possible example, the PT-RS includes a downlink DL PT-RS or an uplink UL PT-RS.

[0040] In one possible example, the preset parameters include at least one resource block (RB) offset parameter; the RB offset parameter is used to indicate the physical resource block (PRB) location used by the terminal when transmitting the PT-RS on the BWP.

[0041] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) resource block offset parameters for the terminal, with one resource block offset parameter corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the resource block offset parameter corresponding to this activated BWP according to the correspondence to determine the RB location used by PT-RS.

[0042] As can be seen in this example, by configuring the resource block RB offset parameter independently for different BWPs, the RB position for PT-RS transmission can be configured more flexibly on different BWPs.

[0043] In one possible example, the preset parameters include at least one resource unit (RE) offset parameter; the at least one RE offset parameter is used to indicate the RE position used by the terminal when transmitting the PT-RS on the BWP.

[0044] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) RE offset parameters for the terminal, with one RE offset parameter corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the RE offset parameter corresponding to this activated BWP according to the above correspondence to determine the RE location used by PT-RS.

[0045] As can be seen in this example, by configuring the RE offset parameter independently for different BWPs, the RE position for PT-RS transmission can be configured more flexibly on different BWPs.

[0046] In one possible example, the preset parameters include at least one power offset parameter; the at least one power offset parameter is used to indicate the power of the terminal when transmitting the PT-RS on the BWP.

[0047] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) power offset parameters for the terminal, with each power offset parameter corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the power offset parameter corresponding to the activated BWP based on the above correspondence to determine the power used by PT-RS.

[0048] As can be seen in this example, by configuring the power offset parameters independently for different BWPs, the power used for PT-RS transmission can be configured more flexibly on different BWPs.

[0049] In one possible example, the network device is configured to use the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

[0050] The DFT-S-OFDM mentioned here corresponds to the Transform precoding technique.

[0051] As can be seen in this example, for terminals that support the DFT-S-OFDM standard, by independently configuring the preset parameters of UL PT-RS for different BWPs, the resource information used for UL PT-RS transmission can be configured more flexibly on different BWPs.

[0052] In one possible example, the preset parameters include time-domain density; the time-domain density is used to determine the time-domain location of the terminal when transmitting the PT-RS on the BWP.

[0053] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) time-domain densities for the terminal, with one time-domain density corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the time-domain density corresponding to this activated BWP according to the above correspondence to determine the time-domain location used by PT-RS.

[0054] As can be seen in this example, by configuring the time domain density independently for different BWPs, the time domain location for PT-RS transmission can be configured more flexibly on different BWPs.

[0055] and Figure 2 For embodiments consistent with those shown, please refer to [link / reference]. Figure 3 , Figure 3 This application provides another parameter configuration method, applied to the above-described example communication system. The method includes:

[0056] In section 301, the terminal receives preset parameters of a phase tracking reference signal (PT-RS) from a network device. The preset parameters of the PT-RS are configured for the terminal's bandwidth portion (BWP). The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0057] As can be seen from the embodiments of this application, since the preset parameters of PT-RS can indicate the resource information required by the terminal when transmitting PT-RS on the BWP, when the terminal's BWP is switched, the terminal only needs to obtain the preset parameters to accurately determine the resource information for transmitting PT-RS on the BWP to be used, which is beneficial to improving the flexibility of PT-RS configuration of BWP. For example, in different bandwidth BWPs, a terminal may be paired with different terminals using multi-user multiple-input multiple-output (MU-MIMO) technology. Thus, for different BWPs, the network device can configure different preset parameters of PT-RS so as to flexibly and better perform multi-user pairing with other terminals on different BWPs.

[0058] In one possible example, the preset parameters include at least one, and each preset parameter corresponds to one or more BWPs.

[0059] In one possible example, the PT-RS includes a downlink DL PT-RS or an uplink UL PT-RS.

[0060] In one possible example, the preset parameters include at least one resource block (RB) offset parameter; the method further includes: the terminal determining the physical resource block (PRB) location used when transmitting the PT-RS on the BWP based on the RB offset parameter.

[0061] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) resource block offset parameters for the terminal, with one resource block offset parameter corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the resource block offset parameter corresponding to this activated BWP according to the correspondence to determine the RB location used by PT-RS.

[0062] As can be seen in this example, by configuring the resource block RB offset parameter independently for different BWPs, the RB position for PT-RS transmission can be configured more flexibly on different BWPs.

[0063] In one possible example, the preset parameters include at least one resource unit (RE) offset parameter; the method further includes: the terminal determining the RE position used when transmitting the PT-RS on the BWP based on the at least one RE offset parameter.

[0064] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) RE offset parameters for the terminal, with one RE offset parameter corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the RE offset parameter corresponding to this activated BWP according to the above correspondence to determine the RE location used by PT-RS.

[0065] As can be seen in this example, by configuring the RE offset parameter independently for different BWPs, the RE position for PT-RS transmission can be configured more flexibly on different BWPs.

[0066] In one possible example, the preset parameters include at least one power offset parameter; the method further includes: the terminal determining the power when transmitting the PT-RS on the BWP based on the at least one power offset parameter.

[0067] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) power offset parameters for the terminal, with each power offset parameter corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the power offset parameter corresponding to the activated BWP based on the above correspondence to determine the power used by PT-RS.

[0068] As can be seen in this example, by configuring the power offset parameters independently for different BWPs, the power used for PT-RS transmission can be configured more flexibly on different BWPs.

[0069] In one possible example, the terminal uses the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

[0070] The DFT-S-OFDM mentioned here corresponds to the Transform precoding technique.

[0071] As can be seen in this example, for terminals that support the DFT-S-OFDM standard, by independently configuring the preset parameters of UL PT-RS for different BWPs, the resource information used for UL PT-RS transmission can be configured more flexibly on different BWPs.

[0072] In one possible example, the preset parameters include time-domain density; the method further includes: the terminal determining the time-domain position when transmitting the PT-RS on the BWP based on the time-domain density.

[0073] For example, a network device configures M bandwidth portion BWPs (which can be uplink or downlink BWPs) for a terminal; for PT-RS, the network device configures N (N<=M) time-domain densities for the terminal, with one time-domain density corresponding to one or more BWPs. When the network device notifies the terminal to activate a certain BWP via signaling, the terminal selects the time-domain density corresponding to this activated BWP according to the above correspondence to determine the time-domain location used by PT-RS.

[0074] As can be seen in this example, by configuring the time domain density independently for different BWPs, the time domain location for PT-RS transmission can be configured more flexibly on different BWPs.

[0075] and Figure 2 and Figure 3 For implementation examples that are consistent, please refer to [link / reference]. Figure 4 , Figure 4This application provides a parameter configuration method, applied to the above-described example communication system. The method includes:

[0076] In section 401, the network device indicates preset parameters of the Phase Tracking Reference Signal (PT-RS) to the terminal. The preset parameters of the PT-RS are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0077] In section 402, the terminal receives preset parameters of a phase tracking reference signal (PT-RS) from a network device. These preset parameters are configured for the terminal's bandwidth portion (BWP) and are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0078] As can be seen, in this embodiment, the network device indicates the preset parameters of the Phase Tracking Reference Signal (PT-RS) to the terminal. These preset parameters are configured for the terminal's Bandwidth Part (BWP) and are used to indicate the resource information required for the terminal to transmit PT-RS on the BWP. Since the preset parameters can determine the resource information required for the terminal to transmit PT-RS on the BWP, when switching BWPs, the terminal only needs to obtain the preset parameters of the PT-RS corresponding to the BWP to be used to flexibly determine the resource information required for transmitting that PT-RS, which improves the flexibility of PT-RS configuration for BWPs. For example, in different Bandwidth Part (BWPs), a terminal may be paired with different terminals using Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology. Thus, for different BWPs, the network device can configure different preset parameters for PT-RS to flexibly and better perform multi-user pairing with other terminals on different BWPs.

[0079] For examples consistent with the above embodiments, please refer to... Figure 5 , Figure 5 This is a schematic diagram of the structure of a network device provided in an embodiment of this application. The network device is a first network device. As shown in the figure, the network device includes a processor, a memory, a transceiver, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the processor. The programs include instructions for performing the following steps.

[0080] The terminal is instructed with preset parameters for the phase tracking reference signal PT-RS, which are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0081] As can be seen, in this embodiment, the network device indicates the preset parameters of the Phase Tracking Reference Signal (PT-RS) to the terminal. These preset parameters are configured for the terminal's Bandwidth Part (BWP) and are used to indicate the resource information required for the terminal to transmit PT-RS on the BWP. Since the preset parameters can determine the resource information required for the terminal to transmit PT-RS on the BWP, when switching BWPs, the terminal only needs to obtain the preset parameters of the PT-RS corresponding to the BWP to be used to flexibly determine the resource information required for transmitting that PT-RS, which improves the flexibility of PT-RS configuration for BWPs. For example, in different Bandwidth Part (BWPs), a terminal may be paired with different terminals using Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology. Thus, for different BWPs, the network device can configure different preset parameters for PT-RS to flexibly and better perform multi-user pairing with other terminals on different BWPs.

[0082] In one possible example, the preset parameters include at least one, and each preset parameter corresponds to one or more BWPs.

[0083] In one possible example, the PT-RS includes a downlink DL PT-RS or an uplink UL PT-RS.

[0084] In one possible example, the preset parameters include at least one resource block (RB) offset parameter; the at least one resource block (RB) offset parameter is used to indicate the physical resource block (PRB) location used by the terminal when transmitting the PT-RS on the BWP.

[0085] In one possible example, the preset parameters include at least one resource unit (RE) offset parameter; the at least one RE offset parameter is used to indicate the RE position used by the terminal when transmitting the PT-RS on the BWP.

[0086] In one possible example, the preset parameters include at least one power offset parameter; the at least one power offset parameter is used to indicate the power of the terminal when transmitting the PT-RS on the BWP.

[0087] In one possible example, the network device is configured to use the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

[0088] In one possible example, the preset parameters include time-domain density; the time-domain density is used to determine the time-domain location of the terminal when transmitting the PT-RS on the BWP.

[0089] For examples consistent with the above embodiments, please refer to... Figure 6 , Figure 6 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application. As shown in the figure, the terminal includes a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the processor. The programs include instructions for performing the following steps.

[0090] The terminal receives preset parameters of a phase tracking reference signal (PT-RS) from a network device. These preset parameters are configured for the bandwidth portion (BWP) of the terminal and are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0091] As can be seen from the embodiments of this application, since the preset parameters of PT-RS can indicate the resource information required by the terminal when transmitting PT-RS on the BWP, when the terminal's BWP is switched, the terminal only needs to obtain the preset parameters to accurately determine the resource information for transmitting PT-RS on the BWP to be used, which is beneficial to improving the flexibility of PT-RS configuration of BWP. For example, in different bandwidth BWPs, a terminal may be paired with different terminals using multi-user multiple-input multiple-output (MU-MIMO) technology. Thus, for different BWPs, the network device can configure different preset parameters of PT-RS so as to flexibly and better perform multi-user pairing with other terminals on different BWPs.

[0092] In one possible example, the preset parameters include at least one, and each preset parameter corresponds to one or more BWPs.

[0093] In one possible example, the PT-RS includes a downlink DL PT-RS or an uplink UL PT-RS.

[0094] In one possible example, the preset parameters include at least one resource block (RB) offset parameter; the program also includes instructions for performing the following operation: determining the physical resource block (PRB) location used when transmitting the PT-RS on the BWP based on the at least one RB offset parameter.

[0095] In one possible example, the preset parameters include at least one resource unit (RE) offset parameter; the program also includes instructions for performing the following operation: determining the RE position used when transmitting the PT-RS on the BWP based on the at least one RE offset parameter.

[0096] In one possible example, the preset parameters include at least one power offset parameter; the program also includes instructions for performing the following operation: determining the power for transmitting the PT-RS on the BWP based on the at least one power offset parameter.

[0097] In one possible example, the terminal uses the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

[0098] In one possible example, the preset parameters include time-domain density; the program also includes instructions for performing the following operation: determining the time-domain location for transmitting the PT-RS on the BWP based on the time-domain density.

[0099] The above mainly describes the solutions of the embodiments of this application from the perspective of interaction between various network elements. It is understood that, in order to achieve the above functions, terminals and network devices include corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art 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.

[0100] This application embodiment can divide the terminal and network device into functional units according to the above method example. For example, each function can be divided into a separate functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software program module. It should be noted that the unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0101] When using integrated units, Figure 7 A possible functional unit block diagram of the network device involved in the above embodiments is shown, which is a first network device. The network device 700 includes a processing unit 702 and a communication unit 703. The processing unit 702 is used to control and manage the operations of the network device; for example, the processing unit 702 is used to support the network device in performing... Figure 2 Step 201 in Figure 4 401 and / or other processes used in the technology described herein. Communication unit 703 is used to support communication between the network device and other devices, such as with... Figure 6 The network device illustrates communication between terminals. It may also include a storage unit 701 for storing program code and data of the network device.

[0102] The processing unit 702 may be a processor or a controller, the communication unit 703 may be a transceiver, a transceiver circuit, an RF chip, etc., and the storage unit 701 may be a memory.

[0103] The processing unit 702 is used to indicate preset parameters of the phase tracking reference signal PT-RS to the terminal through the communication unit. The preset parameters of PT-RS are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0104] In one possible example, the preset parameters include at least one, and each preset parameter corresponds to one or more BWPs.

[0105] In one possible example, the PT-RS includes a downlink DL PT-RS or an uplink UL PT-RS.

[0106] In one possible example, the preset parameters include at least one resource block (RB) offset parameter; the at least one resource block (RB) offset parameter is used to indicate the physical resource block (PRB) location used by the terminal when transmitting the PT-RS on the BWP.

[0107] In one possible example, the preset parameters include at least one resource unit (RE) offset parameter; the at least one RE offset parameter is used to indicate the RE position used by the terminal when transmitting the PT-RS on the BWP.

[0108] In one possible example, the preset parameters include at least one power offset parameter; the at least one power offset parameter is used to indicate the power of the terminal when transmitting the PT-RS on the BWP.

[0109] In one possible example, the network device is configured to use the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

[0110] In one possible example, the preset parameters include time-domain density; the time-domain density is used to determine the time-domain location of the terminal when transmitting the PT-RS on the BWP.

[0111] When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and the storage unit 701 is a memory, the network device involved in the embodiments of this application can be... Figure 5 The network device shown.

[0112] When using integrated units, Figure 8 A possible functional unit block diagram of the terminal involved in the above embodiments is shown. The terminal 800 includes a processing unit 802 and a communication unit 803. The processing unit 802 is used to control and manage the actions of the terminal; for example, the processing unit 802 is used to support the terminal in performing... Figure 3 Step 301 in the middle, Figure 4 Step 402 and / or other processes used in the techniques described herein. Communication unit 803 is used to support communication between the terminal and other devices, such as with… Figure 5 The diagram illustrates communication between network devices. The terminal may also include a storage unit 801 for storing the terminal's program code and data.

[0113] The processing unit 802 can be a processor or controller, such as a central processing unit (CPU), 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, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication unit 803 can be a transceiver, transceiver circuit, etc., and the storage unit 801 can be a memory.

[0114] The processing unit 802 is used to receive preset parameters of the phase tracking reference signal PT-RS from the network device. The preset parameters of the PT-RS are configured for the bandwidth portion (BWP) of the terminal. The preset parameters are used to indicate the resource information required by the terminal when transmitting the PT-RS on the BWP.

[0115] In one possible example, the preset parameters include at least one, and each preset parameter corresponds to one or more BWPs.

[0116] In one possible example, the PT-RS includes a downlink DL PT-RS or an uplink UL PT-RS.

[0117] In one possible example, the preset parameters include at least one resource block (RB) offset parameter; the processing unit 802 is further configured to determine the physical resource block (PRB) location used when transmitting the PT-RS on the BWP based on the at least one RB offset parameter.

[0118] In one possible example, the preset parameters include at least one resource unit (RE) offset parameter; the processing unit 802 is further configured to determine the RE position used when transmitting the PT-RS on the BWP based on the at least one RE offset parameter.

[0119] In one possible example, the preset parameters include at least one power offset parameter; the processing unit 802 is further configured to determine the power when transmitting the PT-RS on the BWP based on the at least one power offset parameter.

[0120] In one possible example, the terminal uses the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

[0121] In one possible example, the preset parameters include time-domain density; the processing unit 802 is also configured to determine the time-domain location when transmitting the PT-RS on the BWP based on the time-domain density.

[0122] When the processing unit 802 is a processor, the communication unit 803 is a communication interface, and the storage unit 801 is a memory, the terminal involved in the embodiments of this application can be... Figure 6 The terminal shown.

[0123] This application also provides a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the terminal in the above method embodiments.

[0124] This application also provides a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the above method embodiments for network devices.

[0125] This application also provides a computer program product, comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the terminal embodiments above. This computer program product can be a software installation package.

[0126] This application also provides a computer program product, comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the network device section of the above method. This computer program product may be a software installation package.

[0127] The steps of the methods or algorithms described in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Furthermore, the ASIC can reside in an access network device, a target network device, or a core network device. Alternatively, the processor and storage medium can exist as discrete components in the access network device, the target network device, or the core network device.

[0128] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in the embodiments of this application can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0129] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A parameter configuration method, characterized in that, include: The network device sends Radio Resource Control (RRC) signaling to the terminal, which includes parameters of the Phase Tracking Reference Signal (PT-RS). The PT-RS parameters include at least one of Resource Element (RE) offset parameters and power offset parameters. The at least one of the RE offset parameters and power offset parameters corresponds one-to-one with a plurality of Bandwidth Parts (BWPs) in the carrier. One RE offset parameter corresponds to one BWP, and / or one power offset parameter corresponds to one BWP. The network device sends downlink control information (DCI) or media access control layer control unit (MAC CE) to the terminal, wherein the DCI or the MAC CE is used to indicate the active BWP, and the one-to-one correspondence is used to select at least one of the RE offset parameter and power offset parameter corresponding to the active BWP.

2. The method according to claim 1, characterized in that, The PT-RS includes downlink DL PT-RS or uplink ULPT-RS.

3. The method according to claim 1 or 2, characterized in that, The parameters also include at least one resource block (RB) offset parameter; the at least one resource block (RB) offset parameter is used to indicate the physical resource block (PRB) location used by the terminal when transmitting the PT-RS on the BWP.

4. The method according to claim 1 or 2, characterized in that, The RE offset parameter is used to indicate the RE position used by the terminal when transmitting the PT-RS on the BWP.

5. The method according to claim 1 or 2, characterized in that, The power offset parameter is used to indicate the power of the terminal when transmitting the PT-RS on the BWP.

6. The method according to claim 1, characterized in that, The network device configuration terminal uses the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

7. The method according to claim 6, characterized in that, The parameters also include time-domain density; the time-domain density is used to determine the time-domain position of the terminal when transmitting the PT-RS on the BWP.

8. A parameter configuration method, characterized in that, include: The terminal receives Radio Resource Control (RRC) signaling from the network device, which includes parameters of the Phase Tracking Reference Signal (PT-RS). The PT-RS parameters include at least one of Resource Element (RE) offset parameters and power offset parameters. The at least one of the RE offset parameters and power offset parameters corresponds one-to-one with a plurality of Bandwidth Parts (BWPs) in the carrier. One RE offset parameter corresponds to one BWP, and / or one power offset parameter corresponds to one BWP. The terminal receives downlink control information (DCI) or media access control layer control unit (MACCE) sent by the network device, wherein the DCI or the MACCE is used to indicate the active BWP, and the one-to-one correspondence is used to select at least one of the RE offset parameter and power offset parameter corresponding to the active BWP.

9. The method according to claim 8, characterized in that, The PT-RS includes downlink DL PT-RS or uplink ULPT-RS.

10. The method according to claim 8 or 9, characterized in that, The parameters include at least one resource block (RB) offset parameter; the method further includes: The terminal determines the physical resource block (PRB) location used when transmitting the PT-RS on the BWP based on the at least one RB offset parameter.

11. The method according to claim 8 or 9, characterized in that, The parameters include the RE offset parameter; the method further includes: The terminal determines the RE position used when transmitting the PT-RS on the BWP based on the RE offset parameter that corresponds one-to-one with the activated BWP.

12. The method according to claim 8 or 9, characterized in that, The parameters include power offset parameters; the method further includes: The terminal determines the power when transmitting the PT-RS on the BWP based on the power offset parameter that corresponds one-to-one with the activated BWP.

13. The method according to claim 8, characterized in that, The terminal uses the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

14. The method according to claim 13, characterized in that, The parameters also include time-domain density; the method further includes: The terminal determines the time-domain position when transmitting the PT-RS on the BWP based on the time-domain density.

15. A network device, characterized in that, Includes a processing unit and a communication unit. The processing unit is configured to send Radio Resource Control (RRC) signaling, including parameters of a Phase Tracking Reference Signal (PT-RS), to the terminal via the communication unit. The PT-RS parameters include at least one of Resource Element (RE) offset parameters and power offset parameters. The at least one of the RE offset parameters and power offset parameters corresponds one-to-one with a plurality of Bandwidth Parts (BWPs) in a carrier. One RE offset parameter corresponds to one BWP, and / or one power offset parameter corresponds to one BWP. The processing unit is further configured to send downlink control information (DCI) or media access control layer control unit (MAC CE) to the terminal via the communication unit, wherein the DCI or the MAC CE is used to indicate an active BWP, and wherein the one-to-one correspondence is used to select at least one of the RE offset parameter and power offset parameter corresponding to the active BWP.

16. A terminal, characterized in that, Includes a processing unit and a communication unit. The processing unit is configured to receive Radio Resource Control (RRC) signaling from a network device, including parameters of a Phase Tracking Reference Signal (PT-RS), via the communication unit. The PT-RS parameters include at least one of Resource Element (RE) offset parameters and power offset parameters. The at least one of the RE offset parameters and power offset parameters corresponds one-to-one with a plurality of Bandwidth Parts (BWPs) in a carrier, with one RE offset parameter corresponding to one BWP and / or one power offset parameter corresponding to one BWP. The processing unit is further configured to receive downlink control information (DCI) or media access control layer control unit (MAC CE) sent by the network device through the communication unit, wherein the DCI or the MAC CE is used to indicate an active BWP, and wherein the one-to-one correspondence is used to select at least one of the RE offset parameter and power offset parameter corresponding to the active BWP.

17. The terminal according to claim 16, characterized in that, The PT-RS includes downlink DL PT-RS or uplink UL PT-RS.

18. The terminal according to claim 16, characterized in that, The parameters also include at least one resource block (RB) offset parameter; the processing unit is further configured to determine the physical resource block (PRB) location used when transmitting the PT-RS on the BWP based on the at least one RB offset parameter.

19. The terminal according to claim 16, characterized in that, The parameters include the RE offset parameters; the processing unit is further configured to determine the RE position used when transmitting the PT-RS on the BWP based on the RE offset parameters that correspond one-to-one with the activated BWP.

20. The terminal according to claim 16, characterized in that, The parameters include the power offset parameter; the processing unit is further configured to determine the power when transmitting the PT-RS on the BWP according to the power offset parameter that corresponds one-to-one with the activated BWP.

21. The terminal according to claim 16, characterized in that, The terminal uses the Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) standard; the PT-RS is an uplink UL PT-RS.

22. The terminal according to claim 21, characterized in that, The parameters also include time-domain density; the processing unit is further configured to determine the time-domain position when transmitting the PT-RS on the BWP based on the time-domain density.

23. A network device, characterized in that, The method includes a processor, a memory, a transceiver, and one or more programs, said one or more programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 1-7.

24. A terminal, characterized in that, The method includes a processor, a memory, a communication interface, and one or more programs, said one or more programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 8-14.

25. A computer-readable storage medium, characterized in that, It stores a computer program for electronic data interchange, wherein the computer program causes the computer to perform the method as described in any one of claims 1-7.

26. A computer-readable storage medium, characterized in that, It stores a computer program for electronic data interchange, wherein the computer program causes the computer to perform the method as described in any one of claims 8-14.

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