Wireless communication methods, terminal devices, and network devices

Abstract

A wireless communication method, terminal device, and network device, the method comprising: the terminal device determining an antenna polarization mode corresponding to a first physical channel or a first reference signal transmission on a first bandwidth portion (BWP) as a first antenna polarization mode, and / or, the terminal device determining a quasi-co-located QCL reference signal corresponding to the first reference signal on the first BWP as a second reference signal on a second BWP.

Description

Technical Field

[0001] This application relates to the field of communications, specifically to a wireless communication method, terminal device, and network device. Background Technology

[0002] Quasi-co-location (QCL) refers to a method in which the large-scale parameters of the channel experienced by a symbol at one antenna port can be inferred from the channel experienced by a symbol at another antenna port. These large-scale parameters can include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters.

[0003] In New Radio (NR) systems, satellite communication is considered as a means of providing communication services to users. Satellites use multiple beams to cover the ground, a scenario known as New Radio Non-Terrestrial Networks (NR-NTN). In the NR-NTN scenario, the satellite beamout can be configured as follows: one Synchronization Signal Block (SSB) corresponds to one ground cell, or the beamwidth of the SSB transmission is the same as the beamwidth of the data transmission; or one SSB corresponds to multiple ground cells, or the beamwidth of the SSB transmission is different from the beamwidth of the data transmission.

[0004] In NR-NTN scenarios, satellites employ various antenna polarization modes, and adjacent cells may use different polarization modes to reduce inter-cell interference. Matching the antenna polarization modes of the satellite and the terminal device improves reception performance; conversely, mismatched polarization modes degrade reception or even prevent signal reception. Therefore, both downlink and uplink transmissions in NR-NTN scenarios require notification of the antenna polarization mode. Consequently, determining the QCL relationship and antenna polarization mode to improve system performance in NR-NTN scenarios is a critical issue that needs to be addressed. Summary of the Invention

[0005] This application provides a wireless communication method, terminal device, and network device, which are beneficial for improving system performance.

[0006] In a first aspect, a wireless communication method is provided, comprising: a terminal device determining an antenna polarization mode corresponding to a first physical channel or a first reference signal transmission on a first bandwidth portion (BWP) as a first antenna polarization mode, and / or,

[0007] The terminal device determines that the quasi-co-addressable QCL reference signal corresponding to the first reference signal on the first BWP is the second reference signal on the second BWP.

[0008] In a second aspect, a wireless communication method is provided, comprising: a network device sending first information to a terminal device, the first information being used by the terminal device to determine that the antenna polarization mode corresponding to a first physical channel or a first reference signal transmission on a first bandwidth portion (BWP) is a first antenna polarization mode and / or the quasi-co-located QCL reference signal corresponding to the first reference signal on the first BWP is a second reference signal on a second BWP.

[0009] Thirdly, a terminal device is provided for executing the methods described in the first aspect or its various implementations.

[0010] Specifically, the terminal device includes a functional module for performing the methods described in the first aspect or its various implementations.

[0011] Fourthly, a network device is provided for performing the methods described in the second aspect or its various implementations.

[0012] Specifically, the network device includes a functional module for performing the methods described in the second aspect or its various implementations.

[0013] Fifthly, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods described in the first aspect or its various implementations.

[0014] Sixthly, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods in the second aspect or its implementations described above.

[0015] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations.

[0016] Specifically, the chip includes a processor for calling and running a computer program from memory, causing a device equipped with the device to perform the methods described in any of the first to second aspects above or their respective implementations.

[0017] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0018] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0019] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0020] Through the above technical solution, the terminal device determines the antenna polarization mode corresponding to the transmission of the physical channel or reference signal on the non-initial BWP based on the antenna polarization mode corresponding to the transmission of the physical channel or reference signal on the initial BWP, or determines the antenna polarization mode corresponding to the transmission of the physical channel or reference signal on the non-initial BWP based on the QCL type configuration information or the first association relationship. This helps to avoid the problem of antenna polarization mode mismatch between the terminal device and the network device affecting the reception performance.

[0021] In addition, the terminal device can determine that the reference signal on the initial BWP and the reference signal on the non-initial BWP have a QCL relationship, which helps to avoid the problem of low resource configuration efficiency caused by configuring QCL relationship through network devices. Attached Figure Description

[0022] Figures 1A-1C This is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0023] Figures 2A-2B These are two beamforming diagrams for NR-NTN scenarios.

[0024] Figure 3 This is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0025] Figure 4 This is a schematic diagram based on a specific example of this application.

[0026] Figure 5 This is a schematic flowchart of another wireless communication method provided according to an embodiment of this application.

[0027] Figure 6 This is a schematic block diagram of a terminal device provided according to an embodiment of this application.

[0028] Figure 7 This is a schematic block diagram of a network device provided according to an embodiment of this application.

[0029] Figure 8 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0030] Figure 9 This is a schematic block diagram of a chip provided according to an embodiment of this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0032] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, or other communication systems.

[0033] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0034] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0035] The communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0036] The embodiments of this application can be applied to both non-terrestrial network (NTN) systems and terrestrial network (TN) systems.

[0037] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0038] Terminal devices can be stations (STs) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0039] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0040] In the embodiments of this application, the terminal device may be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical care, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, or wireless terminal device in smart home, etc. The terminal device involved in the embodiments of this application may also be referred to as a terminal, user equipment (UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, or UE device, etc. The terminal device may also be fixed or mobile.

[0041] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0042] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, wearable device, or a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or an NTN network, etc.

[0043] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments of this application, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a highly elliptical orbit (HEO) satellite, etc. In some embodiments of this application, the network device may also be a base station located on land, water, or other similar locations.

[0044] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0045] For example, Figure 1A This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. Figure 1A As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0046] Figure 1A An exemplary diagram shows a network device and two terminal devices. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit the scope of the embodiments.

[0047] For example, Figure 1B This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application. Please refer to... Figure 1B This includes terminal device 1101 and satellite 1102, which can communicate wirelessly. The network formed between terminal device 1101 and satellite 1102 can also be called an NTN. Figure 1B In the architecture of the communication system shown, satellite 1102 can function as a base station, and terminal device 1101 and satellite 1102 can communicate directly. In this system architecture, satellite 1102 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1102, and the coverage area of ​​each network device 1102 may include other numbers of terminal devices; this application does not limit this aspect.

[0048] For example, Figure 1C This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application. Please refer to... Figure 1CThe network includes terminal device 1201, satellite 1202, and base station 1203. Terminal device 1201 and satellite 1202 can communicate wirelessly, and satellite 1202 can communicate with base station 1203. The network formed by terminal device 1201, satellite 1202, and base station 1203 can also be called an NTN. Figure 1C In the architecture of the communication system shown, satellite 1202 may not function as a base station, and communication between terminal device 1201 and base station 1203 requires relay through satellite 1202. In this system architecture, base station 1203 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1203, and the coverage area of ​​each network device 1203 may include other numbers of terminal devices; this application does not limit this aspect.

[0049] It should be noted that, Figures 1A-1C This application is merely an example illustrating the system to which this application applies. Of course, the methods shown in the embodiments of this application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc. This application does not specifically limit these systems.

[0050] In some embodiments of this application, Figures 1A-1C The wireless communication system shown may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), but this application does not limit this.

[0051] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1A Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0052] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0053] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0054] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0055] The indication information in the embodiments of this application includes at least one of system messages, physical layer signaling (e.g., downlink control information (DCI)), radio resource control (RRC) signaling, and media access control element (MAC CE).

[0056] The higher-level parameters or higher-level signaling in the embodiments of this application include at least one of system messages, Radio Resource Control (RRC) signaling, and Media Access Control (MAC CE).

[0057] In some embodiments of this application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0058] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of the term.

[0059] Quasi-co-location (QCL) refers to a method in which the large-scale parameters of the channel experienced by a symbol at one antenna port can be inferred from the channel experienced by a symbol at another antenna port. These large-scale parameters can include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters.

[0060] In NR systems, considering the possible QCL relationships between various reference signals, the above-mentioned large-scale channel parameters can be divided into different QCL types, which facilitates the system configuration according to different scenarios where the terminal equipment is located.

[0061] As an example, the definitions of different QCL type configurations are as follows:

[0062] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0063] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0064] 'QCL-TypeC': {Doppler shift, average delay};

[0065] 'QCL-TypeD':{Spatial Rx parameter}.

[0066] Beamforming in NR-NTN scenarios includes the following two cases:

[0067] Case 1: such as Figure 2A As shown. One Synchronization Signal Block (SSB) corresponds to one terrestrial cell, or the beamwidth of the SSB transmission is the same as the beamwidth of the data transmission. One terrestrial cell corresponds to one Baseband Window (BWP) for data transmission. After a terminal device accesses the network through the SSB on the initial bandwidth part (BWP) (i.e., BWP#0), the network device will configure the BWP corresponding to the SSB at the time of the terminal device's access for data transmission. Furthermore, as... Figure 2AAs shown, Channel State Information Reference Signal (CSI-RS) can also be transmitted in downlink (DL) BWP#1 to DL BWP#3. The beamwidth and beam direction of the CSI-RS transmission are consistent with those of the data transmission. As an example, the beamwidth and beam direction of the CSI-RS on DL BWP#2 of cell #1 are the same as those of SSB#1 of cell #1. In some cases, the large-scale parameters of the channel experienced by SSB#1 of cell #1, such as Doppler shift, Doppler spread, average delay, and delay spread, can be considered as the QCL reference of the CSI-RS on DL BWP#2 of cell #1. In other words, SSB#1 is the QCL reference signal of the CSI-RS on DL BWP#2, and its QCL type is 'QCL-Type A'.

[0068] Case 2: Figure 2B As shown. One SSB corresponds to multiple terrestrial cells, or the beamwidth of the SSB transmission is inconsistent with the beamwidth of the data transmission, or the beamwidth of the SSB transmission is greater than the beamwidth of the data transmission. One terrestrial cell corresponds to one BWP used for data transmission. After the terminal device accesses the network through the SSB on the initial BWP (i.e., BWP#0), the network device will configure the terminal device with the BWP corresponding to the SSB at the time of access for data transmission. In addition, as Figure 2B As shown, CSI-RS can also be transmitted in DL BWP#1 to DL BWP#3. The beamwidth and beam direction of the CSI-RS transmission are consistent with the beamwidth and beam direction of the data transmission. As an example, the beam of SSB#1 of cell #1 includes the beams of CSI-RS on DL BWP#1, DL BWP#2, and DL BWP#3 of cell #1. In some cases, this scenario can also be called an umbrella beam scenario. In some cases, the large-scale parameters such as the Doppler frequency shift and Doppler spread of the channel experienced by SSB#1 of cell #1 can be considered as the QCL reference for CSI-RS on DL BWP#1, DL BWP#2, or DL ​​BWP#3 of cell #1. In other words, SSB#1 is the QCL reference signal for CSI-RS on DL BWP#1, DL BWP#2, or DL ​​BWP#3, and its QCL type is 'QCL-Type B'.

[0069] In the NR-NTN scenario, the satellite's antenna polarization mode includes at least one of right-hand circular polarization (RHCP), left-hand circular polarization (LHCP), and linear polarization (LP). The terminal equipment's antenna polarization mode also includes at least one of right-hand circular polarization, left-hand circular polarization, and linear polarization.

[0070] In NR-NTN scenarios, neighboring cells may use different polarization modes to mitigate inter-cell interference. Matching the antenna polarization modes of the satellite and terminal equipment improves reception performance; conversely, mismatched polarization modes degrade reception or even prevent signal reception. Furthermore, in these scenarios, using existing QCL (Quality Channel Relationship) determination methods in related technologies leads to inefficient resource allocation. Therefore, determining the QCL relationship and antenna polarization mode to improve system performance in NR-NTN scenarios is a critical issue that needs to be addressed.

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

[0072] Figure 3 This is a schematic interactive diagram of a wireless communication method 200 according to an embodiment of this application, such as... Figure 3 As shown, method 200 includes the following:

[0073] S201, the terminal device determines that the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first bandwidth portion BWP is the first antenna polarization mode, and / or,

[0074] The terminal device determines that the quasi-co-addressable QCL reference signal corresponding to the first reference signal on the first BWP is the second reference signal on the second BWP.

[0075] In some embodiments of this application, the first BWP may include a first uplink BWP and / or a first downlink BWP.

[0076] In some cases, referred to as Case 1, the first BWP is a BWP on a first cell, the first cell corresponds to multiple BWPs, and the antenna polarization mode corresponding to the physical channel or reference signal transmission on the multiple BWPs is the first antenna polarization mode.

[0077] In other words, physical channel transmissions or reference signal transmissions within the same cell use the same antenna polarization pattern. Or, the antenna polarization pattern is cell-level.

[0078] In other cases, referred to as Case 2, the first BWP is a BWP on a first cell, and the first cell corresponds to multiple BWPs. The method for determining the antenna polarization mode corresponding to the physical channel or reference signal transmission on other BWPs among the multiple BWPs is the same as the method for determining the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first BWP.

[0079] It should be understood that physical channel transmission or reference signal transmission on different BWPs within the same cell can use the same antenna polarization mode, or they can use different antenna polarization modes. In other words, the antenna polarization mode is at the BWP granularity.

[0080] The following explanation uses the determination of the antenna polarization mode corresponding to the physical channel or reference signal transmission on the first BWP as an example. In case 1, the determined antenna polarization mode is the antenna polarization mode corresponding to the physical channel or reference signal transmission on the first cell corresponding to the first BWP. In case 2, the terminal device can also determine the antenna polarization mode corresponding to the physical channel or reference signal transmission on other BWPs on the first cell in the same way as the method of determining the antenna polarization mode corresponding to the physical channel or reference signal transmission on the first BWP. For the sake of simplicity, this will not be elaborated here.

[0081] In some embodiments, the first BWP is an active BWP on the first cell. If there are multiple active BWPs on the first cell, the first BWP can be any BWP among the multiple active BWPs.

[0082] In some embodiments, the first BWP includes a first downlink BWP, and the second BWP includes a second downlink BWP.

[0083] That is, the second reference signal on the second downlink BWP can be used as the QCL reference signal of the first reference signal on the first downlink BWP.

[0084] In other embodiments, the first BWP includes a first uplink BWP, and the second BWP includes a second uplink BWP.

[0085] That is, the second reference signal on the second uplink BWP can be used as the QCL reference signal of the first reference signal on the first uplink BWP.

[0086] In some other embodiments, the first BWP includes a first uplink BWP, and the second BWP includes a second downlink BWP.

[0087] That is, the second reference signal on the second downlink BWP can be used as the QCL reference signal of the first reference signal on the first uplink BWP. It should be understood that the QCL reference signal corresponding to the first reference signal on the first uplink BWP is the second reference signal on the second downlink BWP, and can be a large-scale parameter or antenna polarization mode of the second reference signal used as the QCL reference for the first reference signal. In some cases, this QCL reference is determined based on the transmit / receive correspondence.

[0088] In some embodiments of this application, the second BWP may be the initial BWP.

[0089] In some embodiments, the first BWP is a non-initial BWP.

[0090] For example, the reference signal on the initial BWP can be used as the QCL reference signal for the reference signal on a non-initial BWP.

[0091] For example, the terminal device can determine the antenna polarization mode corresponding to the physical channel or reference signal transmission on a non-initial BWP based on the antenna polarization mode corresponding to the physical channel or reference signal transmission on the initial BWP.

[0092] In some embodiments, the second BWP includes a second downlink BWP, which is the initial downlink BWP.

[0093] For example, the reference signal on the initial downlink BWP can be used as the QCL reference signal for the reference signal on a non-initial downlink BWP.

[0094] For example, the terminal device can determine the antenna polarization mode corresponding to the physical channel or reference signal transmission on a non-initial downlink BWP based on the antenna polarization mode corresponding to the physical channel or reference signal transmission on the initial downlink BWP. In other embodiments, the second BWP includes a second uplink BWP, which is the initial uplink BWP.

[0095] For example, the reference signal on the initial uplink BWP can be used as the QCL reference signal for the reference signal on a non-initial uplink BWP.

[0096] For example, the terminal device can determine the antenna polarization mode corresponding to the physical channel or reference signal transmission on a non-initial uplink BWP based on the antenna polarization mode corresponding to the physical channel or reference signal transmission on the initial uplink BWP.

[0097] In some embodiments, the second BWP includes one BWP, and the first BWP includes multiple BWPs.

[0098] For example, multiple reference signals on the second BWP can serve as QCL reference signals for reference signals on multiple BWPs included in the first BWP. Specifically, each of the multiple reference signals on the second BWP corresponds one-to-one with the multiple BWPs included in the first BWP.

[0099] For example, the terminal device can determine the antenna polarization modes corresponding to the physical channels or reference signals transmitted on the multiple physical channels or reference signals transmitted on the second BWP based on the antenna polarization modes transmitted on those channels or reference signals. The multiple physical channels or reference signals on the second BWP correspond one-to-one with the multiple BWPs included in the first BWP.

[0100] In other embodiments of this application, the first BWP and the second BWP are the same BWP, that is, all reference signals on the same BWP can be considered to have a QCL relationship.

[0101] In some embodiments, all reference signals on the first BWP can be considered to have a QCL relationship.

[0102] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first reference signal includes at least one of the following:

[0103] Tracking Reference Signals (TRS), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS) for Physical Downlink Control Channel (PDCCH), and DMRS for Physical Downlink Shared Channel (PDSCH).

[0104] In some embodiments, the first reference signal includes DMRS for PDCCH and DMRS for PDSCH on the first downlink BWP.

[0105] In some embodiments, the CSI-RS includes a CSI-RS for beam management (BM) and / or a CSI-RS for channel state information (CSI).

[0106] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first physical channel includes at least one of the following: PDCCH and PDSCH.

[0107] In some embodiments, the first physical channel includes the PDCCH and PDSCH on the first downlink BWP.

[0108] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first reference signal includes at least one of the following:

[0109] TRS, Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS) for Physical Uplink Control Channel (PUCCH), and DMRS for Physical Uplink Shared Channel (PUSCH).

[0110] In some embodiments, the first reference signal includes the DMRS for PUCCH and the DMRS for PUSCH on the first uplink BWP.

[0111] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first physical channel includes at least one of the following:

[0112] PUCCH, PUSCH, and Physical Random Access Channel (PRACH).

[0113] In some embodiments, the first physical channel includes PUCCH and PUSCH on the first uplink BWP.

[0114] In some embodiments of this application, the second BWP includes a second downlink BWP, and the second reference signal includes at least one of the following: SSB and CSI-RS.

[0115] In some embodiments of this application, the second BWP includes a second uplink BWP, and the second reference signal includes an SRS.

[0116] It should be understood that the specific implementations of the first reference signal, the second reference signal, and the first physical channel exemplified above are merely examples. Other signals or channels may also be included in other embodiments, and this application is not limited thereto.

[0117] The antenna polarization mode in the embodiments of this application may include an uplink antenna polarization mode and / or a downlink antenna polarization mode.

[0118] For example, the first downlink antenna polarization mode and / or the first uplink antenna polarization mode, wherein the first downlink antenna polarization mode and the first uplink antenna polarization mode may be the same or different.

[0119] It should be understood that in some embodiments, the antenna polarization mode can also be replaced by the antenna polarization direction, which may include the uplink antenna polarization direction and / or the downlink antenna polarization direction.

[0120] In some embodiments, the downlink antenna polarization mode includes at least one of RHCP, LHCP, and LP.

[0121] Optionally, the downlink antenna polarization mode can refer to the antenna polarization mode of the network device. This network device can be a terrestrial cell network device, or it can be a non-terrestrial cell network device, such as a satellite.

[0122] In some embodiments, the uplink antenna polarization mode includes at least one of RHCP, LHCP, and LP.

[0123] Optionally, the uplink antenna polarization mode is the antenna polarization mode of the terminal device.

[0124] In some embodiments, the uplink antenna polarization mode is reported by the terminal device to the network device. For example, the terminal device reports the uplink antenna polarization modes it supports to the network device. Further, the network device instructs the terminal device on the antenna polarization mode corresponding to the physical signal or physical channel transmission on the uplink BWP.

[0125] In some embodiments of this application, the first antenna polarization mode may be determined based on first configuration information sent by the network device.

[0126] In some embodiments, the first configuration information can be sent via at least one of the following signaling:

[0127] System messages, Radio Resource Control (RRC) signaling, Media Access Control (MAC) control element (CE), and Downlink Control Information (DCI).

[0128] For example, the network device indicates, through first configuration information, that the antenna polarization mode corresponding to the first physical channel or the first reference signal transmission on the first BWP is the first antenna polarization mode.

[0129] In some embodiments of this application, the first configuration information may include QCL type configuration information and / or QCL relationship configuration information.

[0130] In some embodiments, the QCL relationship configuration information is used to determine that the QCL reference signal corresponding to the first reference signal is the second reference signal. In other words, the first reference signal and the second reference signal have a QCL relationship.

[0131] In some embodiments, the QCL type configuration information is used to configure the QCL type corresponding to the QCL relationship between the first reference signal and the second reference signal. That is, the first reference signal can reference the target large-scale parameters and / or antenna polarization mode of the second reference signal.

[0132] In some embodiments, QCL type configuration information may include antenna polarization parameters. That is, in this application embodiment, antenna polarization parameters can be carried through QCL type configuration information.

[0133] In some embodiments, the antenna polarization parameter may include the antenna polarization mode and / or the antenna polarization direction.

[0134] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0135] {Space reception parameters, antenna polarization parameters};

[0136] {Antenna polarization parameters}.

[0137] You can either add a new QCL type for configuring antenna polarization parameters, or add antenna polarization parameters to a QCL type for configuring spatial reception parameters.

[0138] In other embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters of the first QCL type are one of the following:

[0139] {Doppler frequency shift, Doppler spread, average time delay, time delay spread, antenna polarization parameters};

[0140] {Doppler frequency shift, Doppler spread, antenna polarization parameters};

[0141] {Doppler frequency shift, average time delay, antenna polarization parameters}.

[0142] In this case, it can be assumed that the parameters included in the QCL type include not only large-scale parameters but also antenna polarization parameters.

[0143] In some embodiments of this application, the terminal device can determine the QCL reference signal corresponding to the first reference signal as the second reference signal based on the QCL relationship configuration information. If the antenna polarization mode corresponding to the transmission of the second reference signal is the first antenna polarization mode, and the QCL type configuration information includes antenna polarization parameters, then the terminal device can determine the antenna polarization mode corresponding to the transmission of the first reference signal as the first antenna polarization mode based on the QCL type configuration information.

[0144] In some embodiments of this application, the antenna polarization mode corresponding to the second reference signal transmission can be predefined or indicated by the network device, for example, indicated by at least one of system messages, RRC signaling, MAC CE and DCI, or determined according to preset rules. This application does not limit this.

[0145] As an example 1, the first QCL type can be one of the following:

[0146] 'QCL-eTypeA':{Doppler shift, Doppler spread, average delay, delay spread, antenna polarization mode};

[0147] 'QCL-eTypeB': {Doppler shift, Doppler spread, antenna polarization mode};

[0148] 'QCL-eTypeC': {Doppler shift, average delay, antenna polarization mode};

[0149] 'QCL-eTypeD': {Spatial Rx parameter, antenna polarization mode}.

[0150] This means that an antenna polarization mode can be added to the parameters corresponding to the existing QCL type to obtain an enhanced QCL type.

[0151] As an example 2, the first QCL type can be one of the following:

[0152] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0153] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0154] 'QCL-TypeC': {Doppler shift, average delay};

[0155] 'QCL-eTypeD': {Spatial Rx parameter, antenna polarization mode}.

[0156] That is, an antenna polarization mode can be added to the parameters corresponding to the existing QCL type D to obtain an enhanced QCL type D.

[0157] As an example 3, the first QCL type can be one of the following:

[0158] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0159] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0160] 'QCL-TypeC': {Doppler shift, average delay};

[0161] 'QCL-TypeD':{Spatial Rx parameter}.

[0162] 'QCL-TypeE':{Antenna polarization mode}.

[0163] This means adding a new QCL type E, which is used to indicate that the antenna polarization modes of the two antenna ports are the same.

[0164] In some embodiments of this application, the first BWP is a first downlink BWP, and the first configuration information can be a Transmission Configuration Indicator (TCI) indication information. The TCI indication information is used to indicate multiple downlink reference signals, representing multiple types of reference sources corresponding to the first reference signal on the first downlink BWP.

[0165] As an example, the plurality of downlink reference signals includes up to three downlink reference signals.

[0166] In some embodiments, the network device can configure M TCI states via RRC signaling, where M is a positive integer, and each TCI state corresponds to a QCL reference signal. Further, the MAC CE selects up to 8 TCI states from these M TCI states to correspond with 3 bits of TCI indication information in the DCI, wherein if the value of M is less than or equal to 8, then the M TCI states correspond to the TCI indication information in the DCI. The DCI selects one TCI state from the TCI states corresponding to the TCI indication information in the DCI and uses it as the QCL reference signal for the first reference signal.

[0167] Taking Example 3 above as an example, the specific content of the TCI indication information is explained.

[0168] For example, the TCI indication information is used to indicate at least one of the following:

[0169] TCI Status ID is used to identify a TCI status;

[0170] QCL Information 1;

[0171] QCL Information 2;

[0172] QCL information 3.

[0173] One QCL message contains the following information:

[0174] The QCL type configuration can be one of QCL type A, QCL type B, QCL type C, QCL type D, or QCL type E;

[0175] QCL reference signal configuration includes the cell ID where the reference signal is located, the BWP ID, and the identifier of the reference signal (e.g., CSI-RS resource ID or SSB index).

[0176] Among them, at least one of QCL information 1, QCL information 2 and QCL information 3 has a QCL type of one of QCLTypeA, QCL TypeB and QCL TypeC, one of the other two QCL information (if configured) has a QCL type of QCL type D, and the other of the other two QCL information (if configured) has a QCL type of QCL type E.

[0177] As an example, for frequency bands below 6 GHz, the available QCL reference signal for PDSCH DMRS can include one of the cases shown in Table 1:

[0178] Table 1

[0179] QCL reference signal configuration 1 QCL type configuration 1 QCL reference signal configuration 2 QCL type configuration 2 TRS QCL type A TRS QCL type E TRS QCL type A CSI-RS for BM QCL type E CSI-RS for CSI QCL type A CSI-RS for CSI QCL type E SSB QCL type A SSB QCL type E

[0180] As another example, for frequency bands above 6 GHz, the available QCL reference signal for PDSCH DMRS can include one of the cases shown in Table 2:

[0181] Table 2

[0182]

[0183] In some embodiments, if the QCL type configuration information does not include antenna polarization parameters, the antenna polarization mode corresponding to the first physical channel or the first reference signal on the first BWP can be determined in the following manner.

[0184] In other embodiments of this application, the first antenna polarization mode is determined based on a first association relationship, wherein the first association relationship is used to characterize the association relationship between the antenna polarization mode and the BWP.

[0185] For example, if in the first association relationship, the first BWP corresponds to the first antenna polarization mode, then the terminal device can determine that the antenna polarization mode corresponding to the first physical channel or the first reference signal transmission on the first BWP is the first antenna polarization mode.

[0186] In some embodiments, the first association may include the association between the downlink antenna polarization mode and the BWP and / or the association between the uplink antenna polarization mode and the BWP.

[0187] In some embodiments, the first association may be predefined, and / or configured by the network device.

[0188] For example, the network device configures the first association through at least one of system messages, RRC signaling, MAC CE, and DCI.

[0189] In some embodiments, the first association may be included in the second configuration information. The second configuration information may be any configuration information sent by the network device to the terminal device, such as BWP configuration information, frequency band configuration information, etc.

[0190] Optionally, the second configuration information can be sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0191] In some embodiments of this application, the first antenna polarization mode is determined based on a first QCL relationship and / or a second association relationship, wherein the first QCL relationship is used to characterize the QCL relationship between the BWP identifier ID and the reference signal index, and the second association relationship is used to characterize the association relationship between the antenna polarization mode and the reference signal index.

[0192] In some embodiments, the QCL relationship in the first QCL relationship can be represented as:

[0193] All reference signals on the BWP corresponding to the BWP ID and the SSB indicated by the SSB index corresponding to that BWP ID have a QCL relationship; or,

[0194] The reference signal corresponding to the BWP ID and the SSB indicated by the SSB index corresponding to the BWP ID both have a QCL relationship. Optionally, the reference signal corresponding to the first BWP may refer to the reference signal transmitted on the first BWP, or the reference signal on other BWPs that have a QCL relationship with the reference signal on the first BWP.

[0195] In some embodiments, the first antenna polarization mode is the antenna polarization mode associated with the reference signal corresponding to the first BWP. Optionally, the reference signal corresponding to the first BWP may refer to a reference signal transmitted on the first BWP, or a reference signal on another BWP that has a QCL relationship with the reference signal on the first BWP.

[0196] As an example, in the first QCL relationship, the first BWP corresponds to the second reference signal, and in the second association relationship, the second reference signal corresponds to the first antenna polarization mode. Therefore, the antenna polarization mode of the first reference signal on the first BWP can be determined as the first antenna polarization mode.

[0197] In some embodiments, the reference signal index may include an SSB index and / or a CSI-RS identifier (Identify, ID).

[0198] As an example, the first QCL relationship can be a QCL relationship between the BWP ID and the SSB index.

[0199] As an example, the second association could be an association between the antenna polarization mode and the SSB index.

[0200] In some embodiments, the second association may include an association between the downlink antenna polarization mode and the reference signal index and / or an association between the uplink antenna polarization mode and the reference signal index.

[0201] As an example, the association between downlink antenna polarization mode and SSB index can include:

[0202] {SSB 0, polarization mode 0}, {SSB 1, polarization mode 1}, {SSB 2, polarization mode 2}.

[0203] As an example, the association between uplink antenna polarization mode and SSB index can include:

[0204] {SSB 0, uplink polarization mode 0}, {SSB 1, uplink polarization mode 1}, {SSB 2, uplink polarization mode 2}.

[0205] If the terminal device accesses the network through SSB0, it can use uplink polarization mode 0 corresponding to SSB0 for uplink transmission; or, if the terminal device accesses the network through SSB1, it can use uplink polarization mode 1 corresponding to SSB1 for uplink transmission; or, if the terminal device accesses the network through SSB2, it can use uplink polarization mode 2 corresponding to SSB2 for uplink transmission.

[0206] As another example, network devices can be configured to support circular polarization. If circular polarization is supported, the second association can be predefined. For example, an SSB with an odd SSB index can be associated with RHCP, and an SSB with an even SSB index can be associated with LHCP; or, an SSB with an even SSB index can be associated with RHCP, and an SSB with an odd SSB index can be associated with LHCP. Alternatively, if circular polarization is not supported, the antenna polarization mode associated with the SSB for any SSB index is LP.

[0207] As another example, the terminal device can report to the network device whether it supports circular polarization. If the terminal device supports circular polarization, it performs uplink transmission based on the association between the uplink antenna polarization mode and the SSB index. Alternatively, if it does not support circular polarization, the terminal device determines the uplink antenna polarization mode to be LP.

[0208] In some embodiments of this application, the first QCL relationship is predefined or configured by the network device.

[0209] For example, the network device configures the first QCL relationship through at least one of system messages, RRC signaling, MAC CE, and DCI.

[0210] In some embodiments, the first QCL relationship may be included in the third configuration information. Optionally, the third configuration information may be any configuration information sent by the network device to the terminal device, such as BWP configuration information, frequency band configuration information, etc.

[0211] In some embodiments, the third configuration information may be sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0212] In some embodiments of this application, the second association is predefined or configured by the network device.

[0213] For example, network devices send the second association via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0214] In some embodiments, the second association may be included in the fourth configuration information. Optionally, the fourth configuration information may be sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0215] In some embodiments, the fourth configuration information may be any configuration information sent by the network device to the terminal device, such as BWP configuration information, frequency band configuration information, etc.

[0216] In some embodiments of this application, the first antenna polarization mode is used for Radio Resource Management (RRM) measurements and / or Radio Link Monitoring (RLM) measurements.

[0217] In some embodiments, the second association is used for RRM measurement and / or RLM measurement.

[0218] For example, the second association relationship may include the association relationship between the antenna polarization mode and the reference signal index of the neighboring cell. By configuring the association relationship between the antenna polarization mode and the reference signal index of the neighboring cell, the terminal device can perform RRM measurement of the neighboring cell based on the association relationship.

[0219] In some embodiments of this application, the QCL relationship between the first reference signal and the second reference signal is determined based on a second QCL relationship, wherein the second QCL relationship is used to characterize the QCL relationship between the BWP ID and the reference signal index.

[0220] In some embodiments, the QCL relationship in the second QCL relationship can be represented as:

[0221] All reference signals on the BWP corresponding to the BWP ID and the SSB indicated by the SSB index corresponding to that BWP ID have a QCL relationship; or,

[0222] The reference signal corresponding to the BWP ID and the SSB indicated by the SSB index corresponding to the BWP ID both have a QCL relationship. Optionally, the reference signal corresponding to the first BWP may refer to the reference signal transmitted on the first BWP, or the reference signal on other BWPs that have a QCL relationship with the reference signal on the first BWP.

[0223] That is, the terminal device can determine, based on the second QCL relationship, that all reference signals on a BWP correspond to the same reference signal; or, determine that all reference signals corresponding to a BWP correspond to the same reference signal.

[0224] In some embodiments of this application, the second QCL relationship is predefined or configured by the network device.

[0225] For example, network devices configure the second QCL relationship via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0226] In some embodiments, the second QCL relationship may be included in the fifth configuration information. Optionally, the fifth configuration information may be any configuration information sent by the network device to the terminal device, such as BWP configuration information, frequency band configuration information, etc.

[0227] Optionally, the fifth configuration information can be sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0228] In some embodiments of this application, the second reference signal is used as the QCL reference signal of the first reference signal, which may mean that the large-scale parameters and / or antenna polarization mode of the second reference signal can be used as the QCL reference of the first reference signal.

[0229] In the embodiments of this application, the QCL type corresponding to the QCL relationship between the second reference signal and the first reference signal can be predefined or configured by the network device. For example, the network device can indicate this through at least one of system messages, RRC signaling, MAC CE and DCI.

[0230] The following examples illustrate the QCL type corresponding to the QCL relationship between the second reference signal and the first reference signal.

[0231] As an example of the QCL relationship between the second reference signal and the first reference signal, denoted as QCL relationship 1, the QCL reference signal corresponding to the first reference signal is the second reference signal, including:

[0232] The parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0233] Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA';

[0234] Doppler frequency shift and Doppler spread; or, corresponding to 'QCL-TypeB';

[0235] Doppler shift and average delay; or, corresponding to 'QCL-TypeC'.

[0236] Optionally, the above QCL relationship 1 can be applied to frequency bands below 6 GHz.

[0237] As another example of the QCL relationship between the second reference signal and the first reference signal, denoted as QCL relationship 2, the QCL reference signal corresponding to the first reference signal is the second reference signal, including:

[0238] The parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0239] Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD';

[0240] Doppler frequency shift, Doppler spread, and spatial reception parameters; or, corresponding to 'QCL-TypeB' + 'QCL-TypeD';

[0241] Doppler frequency shift, average time delay, and spatial reception parameters; or, corresponding to 'QCL-TypeC' + 'QCL-TypeD';

[0242] Spatial reception parameters; or, corresponding to 'QCL-TypeD'.

[0243] Optionally, the above QCL relationship 2 can be applied to frequency bands below 6 GHz.

[0244] Optionally, the above QCL relationship 2 can be applied to frequency bands above 6 GHz.

[0245] As another example of the QCL relationship between the second reference signal and the first reference signal, denoted as QCL relationship 3, the QCL reference signal corresponding to the first reference signal is the second reference signal, including:

[0246] The parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0247] Doppler frequency shift, Doppler spread, average time delay, time delay spread, and antenna polarization parameters; or, corresponding to 'QCL-TypeA'+'QCL-TypeE'; or, corresponding to 'QCL-eTypeA';

[0248] Doppler frequency shift, Doppler spread, and antenna polarization parameters; or, corresponding to 'QCL-TypeB' + 'QCL-TypeE'; or, corresponding to 'QCL-eTypeB'.

[0249] Doppler frequency shift, average time delay, and antenna polarization parameters; or, corresponding to 'QCL-TypeC' + 'QCL-TypeE'; or, corresponding to 'QCL-eTypeC'.

[0250] Antenna polarization parameters; or, corresponding to 'QCL-TypeE'; or, corresponding to 'QCL-eTypeD'.

[0251] Optionally, the above QCL relationship 3 can be applied to frequency bands above 6 GHz.

[0252] Optionally, the above QCL relationship 3 can be applied to frequency bands below 6 GHz.

[0253] As another example of the QCL relationship between the second reference signal and the first reference signal, denoted as QCL relationship 4, the QCL reference signal corresponding to the first reference signal is the second reference signal, and the parameters include one of the following:

[0254] Doppler frequency shift, Doppler spread, average delay, delay spread, spatial reception parameters, and antenna polarization parameters; or, corresponding to 'QCL-TypeA'+'QCL-TypeD'+'QCL-TypeE'; or, corresponding to 'QCL-eTypeA'+'QCL-TypeD'; or, corresponding to 'QCL-TypeA'+'QCL-eTypeD';

[0255] Doppler frequency shift, Doppler spread, spatial reception parameters, and antenna polarization parameters; or, corresponding to 'QCL-TypeB'+'QCL-TypeD'+'QCL-TypeE'; or, corresponding to 'QCL-eTypeB'+'QCL-TypeD'; or, corresponding to 'QCL-TypeB'+'QCL-eTypeD';

[0256] Doppler frequency shift, average time delay, spatial reception parameters, and antenna polarization parameters; or, corresponding to 'QCL-TypeC'+'QCL-TypeD'+'QCL-TypeE'; or, corresponding to 'QCL-eTypeC'+'QCL-TypeD'; or, corresponding to 'QCL-TypeC'+'QCL-eTypeD';

[0257] Spatial reception parameters and antenna polarization parameters; corresponding to 'QCL-TypeD'+'QCL-TypeE'; or, corresponding to 'QCL-eTypeD'.

[0258] Optionally, the above QCL relationship 4 can be applied to frequency bands below 6 GHz.

[0259] Optionally, the above QCL relationship 4 can be applied to frequency bands above 6 GHz.

[0260] It should be understood that in some embodiments of this application, if the antenna polarization modes corresponding to the first reference signal and the second reference signal are different, then the first reference signal and the second reference signal do not have a QCL relationship. The antenna polarization modes corresponding to the first reference signal and the second reference signal may be configured by the network device, or they may be predefined, or determined according to other preset rules.

[0261] In some embodiments, if the antenna polarization modes corresponding to the first reference signal and the second reference signal are different, the terminal device does not expect the network device to configure the two reference signals as reference signals with a QCL relationship.

[0262] The following combination Figure 4 The specific examples shown illustrate the specific implementation of the embodiments of this application.

[0263] In this example, the second reference signal is the SSB on the initial BWP, and the first reference signal includes the TRS on the first BWP, the DMRS for the PDCCH, and the DMRS for the PDSCH.

[0264] like Figure 4As shown, in the first QCL relationship or the second QCL relationship, the reference signals SSB#0 on DL BWP#0 and DL BWP#1 have a QCL relationship, the reference signals SSB#1 on DL BWP#0 and DL BWP#2 on DL BWP#0 have a QCL relationship, and the reference signals SSB#2 on DL BWP#0 and DL BWP#3 on DL BWP#0 have a QCL relationship. The QCL type between these reference signals can be any of those in the aforementioned embodiments; for example, a QCL type of 'QCL-TypeA' + 'QCL-TypeE' is used.

[0265] If the terminal device selects SSB#1 during the initial access process, the network device configures DL BWP#2 for connected state data transmission after the terminal device accesses the network. Accordingly, the terminal device can determine that the reference signal of DL BWP#2 and SSB#1 on DL BWP#0 satisfy the QCL relationship. If the terminal device receives a PDSCH2 reception scheduled by the network device on DL BWP#2, such as... Figure 4 As shown, the terminal device can obtain the Doppler frequency shift, Doppler spread, average delay, delay spread, and antenna polarization mode of the channel from SSB#1 based on the QCL relationship between SSB#1 and PDSCH2. Assuming that the QCL relationship is 'QCL-TypeA'+'QCL-TypeE', the terminal device can adjust the filtering parameters of the DMRS channel estimator of PDSCH2 by obtaining the channel's Doppler frequency shift, Doppler spread, average delay, delay spread, and antenna polarization mode from SSB#1, thereby enabling PDSCH2 reception.

[0266] In summary, the terminal device can determine the antenna polarization mode corresponding to the physical channel or reference signal transmission on a non-initial BWP based on the antenna polarization mode corresponding to the physical channel or reference signal transmission on the initial BWP, or based on the QCL type configuration information or the first association relationship, or based on the second association relationship and the first QCL relationship. This helps to avoid the problem of antenna polarization mode mismatch between the terminal device and the network device affecting the reception performance.

[0267] In addition, the terminal device determines that the reference signals on the initial BWP and the reference signals on the non-initial BWP have a QCL relationship, which helps to avoid the problem of low resource allocation efficiency caused by configuring QCL relationships through network devices.

[0268] The above text combined Figures 3 to 4 The wireless communication method according to the embodiments of this application is described in detail from the perspective of the terminal device. The following is in conjunction with Figure 5This application describes in detail a wireless communication method according to another embodiment of the present application from the perspective of a network device. It should be understood that the description on the network device side corresponds to the description on the terminal device side, and similar descriptions can be found above. To avoid repetition, they will not be repeated here.

[0269] Figure 5 This is a schematic flowchart of a wireless communication method 300 according to another embodiment of this application. Method 300 can be executed by a network device in the communication system shown in FIG1, such as... Figure 5 As shown, the method 300 includes the following:

[0270] S301, the network device sends first information to the terminal device, the first information being used by the terminal device to determine that the antenna polarization mode corresponding to the transmission of the first physical channel or the first reference signal on the first bandwidth portion BWP is the first antenna polarization mode, and / or, the quasi-co-located QCL reference signal corresponding to the first reference signal on the first BWP is the second reference signal on the second BWP.

[0271] It should be understood that the specific information included in the first information and the configuration method are described in the relevant description in method 200, and will not be repeated here.

[0272] In some embodiments of this application, the first information includes first configuration information, wherein the first antenna polarization mode is determined by the first configuration information, and the first configuration information is transmitted through at least one of the following signaling:

[0273] System messages, Radio Resource Control (RRC) signaling, Media Access Control (MAC) Control Element (CE), Downlink Control Information (DCI).

[0274] In some embodiments of this application, the first configuration information includes QCL type configuration information and / or QCL relationship configuration information.

[0275] In some embodiments of this application, the QCL type configuration information includes antenna polarization parameters; and / or,

[0276] The QCL relationship configuration information is used to determine that the QCL reference signal corresponding to the first reference signal is the second reference signal.

[0277] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0278] {Space reception parameters, antenna polarization parameters};

[0279] {Antenna polarization parameters}.

[0280] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0281] {Doppler frequency shift, Doppler spread, average time delay, time delay spread, antenna polarization parameters};

[0282] {Doppler frequency shift, Doppler spread, antenna polarization parameters};

[0283] {Doppler frequency shift, average time delay, antenna polarization parameters}.

[0284] In some embodiments of this application, the first information includes a first association relationship, wherein the first antenna polarization mode is determined based on the first association relationship, and wherein the first association relationship is used to characterize the association relationship between the antenna polarization mode and the BWP.

[0285] In some embodiments of this application, the first association is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0286] In some embodiments of this application, the first information includes a first QCL relationship and / or a second association relationship, wherein the first antenna polarization mode is determined based on the first QCL relationship and / or the second association relationship, wherein the first QCL relationship is used to characterize the QCL relationship between the BWP identifier ID and the reference signal index, and the second association relationship is used to characterize the association relationship between the antenna polarization mode and the reference signal index.

[0287] In some embodiments of this application, the first antenna polarization mode is the antenna polarization mode associated with the reference signal corresponding to the first BWP.

[0288] In some embodiments of this application, the first QCL relationship is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0289] In some embodiments of this application, the second association is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0290] In some embodiments of this application, the second association is used for radio resource management (RRM) measurements and / or radio link management (RLM) measurements.

[0291] In some embodiments of this application, the first antenna polarization mode is used for radio resource management (RRM) measurements and / or radio link management (RLM) measurements.

[0292] In some embodiments of this application, the first BWP is a BWP on a first cell, the first cell corresponds to multiple BWPs, and the antenna polarization mode corresponding to the physical channel or reference signal transmission on the multiple BWPs is the first antenna polarization mode.

[0293] In some embodiments of this application, the first BWP is a BWP on a first cell, and the first cell corresponds to multiple BWPs. The indication method of the antenna polarization mode corresponding to the physical channel or reference signal transmission on other BWPs among the multiple BWPs is the same as the indication method of the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first BWP.

[0294] In some embodiments of this application, the first antenna polarization mode includes a first downlink antenna polarization mode and / or a first uplink antenna polarization mode.

[0295] In some embodiments of this application, the first information includes a second QCL relationship, wherein the QCL relationship between the first reference signal and the second reference signal is determined based on the second QCL relationship, wherein the second QCL relationship is used to characterize the QCL relationship between the BWP ID and the reference signal index.

[0296] In some embodiments of this application, the second QCL relationship is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0297] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0298] Doppler frequency shift, Doppler spread, average time delay, and time delay spread;

[0299] Doppler frequency shift and Doppler spread;

[0300] Doppler shift and average time delay.

[0301] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0302] Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters;

[0303] Doppler frequency shift, Doppler spread, and space reception parameters;

[0304] Doppler frequency shift, average time delay, and spatial reception parameters;

[0305] Space reception parameters.

[0306] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0307] Doppler frequency shift, Doppler spread, average time delay, time delay spread, and antenna polarization parameters;

[0308] Doppler frequency shift, Doppler spread, and antenna polarization parameters;

[0309] Doppler frequency shift, average time delay, and antenna polarization parameters;

[0310] Antenna polarization parameters.

[0311] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0312] Doppler frequency shift, Doppler spread, average time delay, time delay spread, spatial reception parameters, and antenna polarization parameters;

[0313] Doppler frequency shift, Doppler spread, spatial reception parameters, and antenna polarization parameters;

[0314] Doppler frequency shift, average time delay, spatial reception parameters, and antenna polarization parameters;

[0315] Space reception parameters and antenna polarization parameters.

[0316] In some embodiments of this application, the second BWP includes a second downlink BWP, and the second reference signal includes at least one of the following: a synchronization signal block SSB and CSI-RS.

[0317] In some embodiments of this application, the second downlink BWP is the initial downlink BWP.

[0318] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first reference signal includes at least one of the following:

[0319] Tracking Reference Signal (TRS), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS) for Physical Downlink Control Channel (PDCCH), and DMRS for Physical Downlink Shared Channel (PDSCH).

[0320] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first physical channel includes at least one of the following:

[0321] PDCCH and PDSCH.

[0322] In some embodiments of this application, the second BWP includes a second uplink BWP, and the second reference signal includes an SRS.

[0323] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first reference signal includes at least one of the following:

[0324] Tracking Reference Signal (TRS), Channel Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS) for Physical Uplink Control Channel (PUCCH), and DMRS for Physical Uplink Shared Channel (PUSCH).

[0325] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first physical channel includes at least one of the following: PUCCH, PUSCH, and PRACH.

[0326] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and / or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solutions should also fall within the protection scope of this application.

[0327] It should also be understood that in the various method embodiments of this application, the sequence number of each process does not imply 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 this application. Furthermore, in the embodiments of this application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and "sidelink" indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. Additionally, in the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. Specifically, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0328] The above text combined Figures 3 to 5 The method embodiments of this application are described in detail below, in conjunction with... Figures 6 to 9 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0329] Figure 6 A schematic block diagram of a terminal device 400 according to an embodiment of this application is shown. Figure 6 As shown, the terminal device 400 includes:

[0330] Processing unit 410 is configured to determine that the antenna polarization mode corresponding to the transmission of the first physical channel or the first reference signal on the first bandwidth portion BWP is the first antenna polarization mode, and / or to determine that the quasi-co-located QCL reference signal corresponding to the first reference signal on the first BWP is the second reference signal on the second BWP.

[0331] In some embodiments of this application, the first antenna polarization mode is determined based on first configuration information sent by the network device, the first configuration information being transmitted via at least one of the following signaling:

[0332] System messages, Radio Resource Control (RRC) signaling, Media Access Control (MAC) Control Element (CE), Downlink Control Information (DCI).

[0333] In some embodiments of this application, the first configuration information includes QCL type configuration information and / or QCL relationship configuration information.

[0334] In some embodiments of this application, the QCL type configuration information includes antenna polarization parameters; and / or,

[0335] The QCL relationship configuration information is used to determine that the QCL reference signal corresponding to the first reference signal is the second reference signal.

[0336] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0337] {Space reception parameters, antenna polarization parameters};

[0338] {Antenna polarization parameters}.

[0339] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0340] {Doppler frequency shift, Doppler spread, average time delay, time delay spread, antenna polarization parameters};

[0341] {Doppler frequency shift, Doppler spread, antenna polarization parameters};

[0342] {Doppler frequency shift, average time delay, antenna polarization parameters}.

[0343] In some embodiments of this application, the QCL type configuration information includes antenna polarization parameters, and the terminal device determines the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first bandwidth portion (BWP) as the first antenna polarization mode, including:

[0344] The QCL reference signal corresponding to the first reference signal is the second reference signal, the antenna polarization mode corresponding to the transmission of the second reference signal is the first antenna polarization mode, and the terminal device determines the antenna polarization mode corresponding to the transmission of the first reference signal as the first antenna polarization mode according to the QCL type configuration information.

[0345] In some embodiments of this application, the first antenna polarization mode is determined based on a first association relationship, wherein the first association relationship is used to characterize the association relationship between the antenna polarization mode and the BWP.

[0346] In some embodiments of this application, the first association is predefined or determined based on at least one of system messages, RRC signaling, MAC CE, and DCI sent by the network device.

[0347] In some embodiments of this application, the first antenna polarization mode is determined based on a first QCL relationship and / or a second association relationship, wherein the first QCL relationship is used to characterize the QCL relationship between the BWP identifier ID and the reference signal index, and the second association relationship is used to characterize the association relationship between the antenna polarization mode and the reference signal index.

[0348] In some embodiments of this application, the first antenna polarization mode is the antenna polarization mode associated with the reference signal corresponding to the first BWP.

[0349] In some embodiments of this application, the first QCL relationship is predefined or determined based on at least one of system messages, RRC signaling, MAC CE, and DCI sent by the network device.

[0350] In some embodiments of this application, the second association is predefined or determined based on at least one of system messages, RRC signaling, MAC CE, and DCI sent by the network device.

[0351] In some embodiments of this application, the first antenna polarization mode is used for radio resource management (RRM) measurements and / or radio link management (RLM) measurements.

[0352] In some embodiments of this application, the first BWP is a BWP on a first cell, the first cell corresponds to multiple BWPs, and the antenna polarization mode corresponding to the physical channel or reference signal transmission on the multiple BWPs is the first antenna polarization mode.

[0353] In some embodiments of this application, the first BWP is a BWP on a first cell, and the first cell corresponds to multiple BWPs. The method for determining the antenna polarization mode corresponding to the physical channel or reference signal transmission on other BWPs among the multiple BWPs is the same as the method for determining the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first BWP.

[0354] In some embodiments of this application, the first antenna polarization mode includes a first downlink antenna polarization mode and / or a first uplink antenna polarization mode.

[0355] In some embodiments of this application, the QCL relationship between the first reference signal and the second reference signal is determined based on a second QCL relationship, wherein the second QCL relationship is used to characterize the QCL relationship between the BWP ID and the reference signal index.

[0356] In some embodiments of this application, the second QCL relationship is predefined or determined based on at least one of system messages, RRC signaling, MAC CE, and DCI sent by the network device.

[0357] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0358] Doppler frequency shift, Doppler spread, average time delay, and time delay spread;

[0359] Doppler frequency shift and Doppler spread;

[0360] Doppler shift and average time delay.

[0361] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0362] Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters;

[0363] Doppler frequency shift, Doppler spread, and space reception parameters;

[0364] Doppler frequency shift, average time delay, and spatial reception parameters;

[0365] Space reception parameters.

[0366] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0367] Doppler frequency shift, Doppler spread, average time delay, time delay spread, and antenna polarization parameters;

[0368] Doppler frequency shift, Doppler spread, and antenna polarization parameters;

[0369] Doppler frequency shift, average time delay, and antenna polarization parameters;

[0370] Antenna polarization parameters.

[0371] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0372] Doppler frequency shift, Doppler spread, average time delay, time delay spread, spatial reception parameters, and antenna polarization parameters;

[0373] Doppler frequency shift, Doppler spread, spatial reception parameters, and antenna polarization parameters;

[0374] Doppler frequency shift, average time delay, spatial reception parameters, and antenna polarization parameters;

[0375] Space reception parameters and antenna polarization parameters.

[0376] In some embodiments of this application, the second BWP includes a second downlink BWP, and the second reference signal includes at least one of the following: a synchronization signal block SSB and CSI-RS.

[0377] In some embodiments of this application, the second downlink BWP is the initial downlink BWP.

[0378] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, a demodulation reference signal DMRS for the physical downlink control channel PDCCH, and a DMRS for the physical downlink shared channel PDSCH.

[0379] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first physical channel includes at least one of the following: PDCCH and PDSCH.

[0380] In some embodiments of this application, the second BWP includes a second uplink BWP, and the second reference signal includes an SRS.

[0381] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first reference signal includes at least one of the following: a tracking reference signal (TRS), a channel sounding reference signal (SRS), a demodulation reference signal (DMRS) for the physical uplink control channel (PUCCH), and a DMRS for the physical uplink shared channel (PUSCH).

[0382] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first physical channel includes at least one of the following: PUCCH, PUSCH, and PRACH.

[0383] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0384] It should be understood that the terminal device 400 according to the embodiments of this application may correspond to the terminal device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively for implementing Figure 3 The corresponding process of the terminal device in method 200 shown will not be described in detail here for the sake of brevity.

[0385] Figure 7 This is a schematic block diagram of a network device according to an embodiment of this application. Figure 7 The network equipment 500 includes:

[0386] The communication unit 510 is configured to send first information to the terminal device, wherein the first information is used by the terminal device to determine that the antenna polarization mode corresponding to the transmission of the first physical channel or the first reference signal on the first bandwidth portion BWP is the first antenna polarization mode, and / or that the quasi-co-located QCL reference signal corresponding to the first reference signal on the first BWP is the second reference signal on the second BWP.

[0387] In some embodiments of this application, the first information includes first configuration information, wherein the first antenna polarization mode is determined by the first configuration information, and the first configuration information is transmitted through at least one of the following signaling:

[0388] System messages, Radio Resource Control (RRC) signaling, Media Access Control (MAC) Control Element (CE), Downlink Control Information (DCI).

[0389] In some embodiments of this application, the first configuration information includes QCL type configuration information and / or QCL relationship configuration information.

[0390] In some embodiments of this application, the QCL type configuration information includes antenna polarization parameters; and / or,

[0391] The QCL relationship configuration information is used to determine that the QCL reference signal corresponding to the first reference signal is the second reference signal.

[0392] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0393] {Space reception parameters, antenna polarization parameters};

[0394] {Antenna polarization parameters}.

[0395] In some embodiments of this application, the QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following:

[0396] {Doppler frequency shift, Doppler spread, average time delay, time delay spread, antenna polarization parameters};

[0397] {Doppler frequency shift, Doppler spread, antenna polarization parameters};

[0398] {Doppler frequency shift, average time delay, antenna polarization parameters}.

[0399] In some embodiments of this application, the first information includes a first association relationship, wherein the first antenna polarization mode is determined based on the first association relationship, and wherein the first association relationship is used to characterize the association relationship between the antenna polarization mode and the BWP.

[0400] In some embodiments of this application, the first association is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0401] In some embodiments of this application, the first information includes a first QCL relationship and / or a second association relationship, wherein the first antenna polarization mode is determined based on the first QCL relationship and / or the second association relationship, wherein the first QCL relationship is used to characterize the QCL relationship between the BWP identifier ID and the reference signal index, and the second association relationship is used to characterize the association relationship between the antenna polarization mode and the reference signal index.

[0402] In some embodiments of this application, the first antenna polarization mode is the antenna polarization mode associated with the reference signal corresponding to the first BWP.

[0403] In some embodiments of this application, the first QCL relationship is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0404] In some embodiments of this application, the second association is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0405] In some embodiments of this application, the second association is used for radio resource management (RRM) measurements and / or radio link management (RLM) measurements.

[0406] In some embodiments of this application, the first antenna polarization mode is used for radio resource management (RRM) measurements and / or radio link management (RLM) measurements.

[0407] In some embodiments of this application, the first BWP is a BWP on a first cell, the first cell corresponds to multiple BWPs, and the antenna polarization mode corresponding to the physical channel or reference signal transmission on the multiple BWPs is the first antenna polarization mode.

[0408] In some embodiments of this application, the first BWP is a BWP on a first cell, and the first cell corresponds to multiple BWPs. The indication method of the antenna polarization mode corresponding to the physical channel or reference signal transmission on other BWPs among the multiple BWPs is the same as the indication method of the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first BWP.

[0409] In some embodiments of this application, the first antenna polarization mode includes a first downlink antenna polarization mode and / or a first uplink antenna polarization mode.

[0410] In some embodiments of this application, the first information includes a second QCL relationship, wherein the QCL relationship between the first reference signal and the second reference signal is determined based on the second QCL relationship, wherein the second QCL relationship is used to characterize the QCL relationship between the BWP ID and the reference signal index.

[0411] In some embodiments of this application, the second QCL relationship is sent via at least one of system messages, RRC signaling, MAC CE, and DCI.

[0412] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0413] Doppler frequency shift, Doppler spread, average time delay, and time delay spread;

[0414] Doppler frequency shift and Doppler spread;

[0415] Doppler shift and average time delay.

[0416] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0417] Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters;

[0418] Doppler frequency shift, Doppler spread, and space reception parameters;

[0419] Doppler frequency shift, average time delay, and spatial reception parameters;

[0420] Space reception parameters.

[0421] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0422] Doppler frequency shift, Doppler spread, average time delay, time delay spread, and antenna polarization parameters;

[0423] Doppler frequency shift, Doppler spread, and antenna polarization parameters;

[0424] Doppler frequency shift, average time delay, and antenna polarization parameters;

[0425] Antenna polarization parameters.

[0426] In some embodiments of this application, the QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following:

[0427] Doppler frequency shift, Doppler spread, average time delay, time delay spread, spatial reception parameters, and antenna polarization parameters;

[0428] Doppler frequency shift, Doppler spread, spatial reception parameters, and antenna polarization parameters;

[0429] Doppler frequency shift, average time delay, spatial reception parameters, and antenna polarization parameters;

[0430] Space reception parameters and antenna polarization parameters.

[0431] In some embodiments of this application, the second BWP includes a second downlink BWP, and the second reference signal includes at least one of the following:

[0432] Synchronization signal blocks SSB and CSI-RS.

[0433] In some embodiments of this application, the second downlink BWP is the initial downlink BWP.

[0434] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first reference signal includes at least one of the following:

[0435] Tracking Reference Signal (TRS), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS) for Physical Downlink Control Channel (PDCCH), and DMRS for Physical Downlink Shared Channel (PDSCH).

[0436] In some embodiments of this application, the first BWP includes a first downlink BWP, and the first physical channel includes at least one of the following:

[0437] PDCCH and PDSCH.

[0438] In some embodiments of this application, the second BWP includes a second uplink BWP, and the second reference signal includes an SRS.

[0439] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first reference signal includes at least one of the following:

[0440] Tracking Reference Signal (TRS), Channel Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS) for Physical Uplink Control Channel (PUCCH), and DMRS for Physical Uplink Shared Channel (PUSCH).

[0441] In some embodiments of this application, the first BWP includes a first uplink BWP, and the first physical channel includes at least one of the following: PUCCH, PUSCH, and PRACH.

[0442] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0443] It should be understood that the network device 500 according to the embodiments of this application may correspond to the network device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 5 The corresponding procedures for network devices in method 300 shown are not described in detail here for the sake of brevity.

[0444] Figure 8 This is a schematic structural diagram of a communication device 600 provided in an embodiment of this application. Figure 8 The communication device 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0445] Optionally, such as Figure 8 As shown, the communication device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in this embodiment.

[0446] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0447] Optionally, such as Figure 8As shown, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0448] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

[0449] Optionally, the communication device 600 may specifically be a network device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0450] Optionally, the communication device 600 may specifically be a mobile terminal / terminal device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0451] Figure 9 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 9 The chip 700 shown includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0452] Optionally, such as Figure 9 As shown, chip 700 may further include memory 720. Processor 710 can retrieve and run computer programs from memory 720 to implement the methods described in this embodiment.

[0453] The memory 720 can be a separate device independent of the processor 710, or it can be integrated into the processor 710.

[0454] Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0455] Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0456] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0457] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0458] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0459] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above 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. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0460] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0461] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0462] This application also provides a computer-readable storage medium for storing computer programs.

[0463] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0464] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0465] This application also provides a computer program product, including computer program instructions.

[0466] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0467] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0468] This application also provides a computer program.

[0469] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0470] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0471] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software 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.

[0472] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0473] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0474] The units described as separate components may or may not be physically separate. 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0475] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0476] If the aforementioned functions are implemented as 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 this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0477] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of wireless communication, comprising: Comprising: The terminal device determines that the antenna polarization mode corresponding to the first physical channel or the first reference signal transmission on the first bandwidth part (BWP) is a first antenna polarization mode, and the terminal device determines that the quasi co-location (QCL) reference signal corresponding to the first reference signal on the first BWP is a second reference signal on a second BWP; Wherein, the first antenna polarization mode is determined based on first configuration information transmitted by the network device, the first configuration information includes QCL type configuration information, and the QCL type configuration information includes an antenna polarization parameter; or, The first antenna polarization mode is determined according to a first QCL relationship, and the first QCL relationship is used to represent the QCL relationship between the BWP identifier (ID) and the reference signal index; Or, The first antenna polarization mode is determined according to the first QCL relationship and a second association relationship, and the second association relationship is used to represent the association relationship between the antenna polarization mode and the reference signal index.

2. The method of claim 1, wherein, The first configuration information is transmitted through at least one of the following signals: System message, radio resource control (RRC) signaling, medium access control (MAC) control element (CE), and downlink control information (DCI).

3. The method of claim 1, wherein, The first configuration information further includes QCL relationship configuration information.

4. The method of claim 3, wherein, The QCL relationship configuration information is used to determine that the QCL reference signal corresponding to the first reference signal is the second reference signal.

5. The method of claim 1, wherein, The QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following cases: Spatial receiving parameter, antenna polarization parameter; Antenna polarization parameter.

6. The method of claim 1, wherein, The QCL type configuration information includes a first QCL type, and the parameters included in the first QCL type are one of the following cases: Doppler shift, Doppler spread, average delay, delay spread, and antenna polarization parameter; Doppler shift, Doppler spread, and antenna polarization parameter; Doppler shift, average delay, and antenna polarization parameter.

7. The method of claim 1, wherein, The terminal device determines that the antenna polarization mode corresponding to the first physical channel or the first reference signal transmission on the first bandwidth part (BWP) is a first antenna polarization mode, including: The QCL reference signal corresponding to the first reference signal is the second reference signal, the antenna polarization mode corresponding to the second reference signal transmission is the first antenna polarization mode, and the terminal device determines that the antenna polarization mode corresponding to the first reference signal transmission is the first antenna polarization mode according to the QCL type configuration information.

8. The method of claim 1, wherein, The first antenna polarization mode is the antenna polarization mode associated with the reference signal corresponding to the first BWP.

9. The method of claim 1, wherein, The first QCL relationship is predefined, or is determined based on at least one of the system message, the RRC signaling, the MAC CE, and the DCI transmitted by the network device.

10. The method of claim 1, wherein, The second association relationship is predefined, or is determined based on at least one of the system message, the RRC signaling, the MAC CE, and the DCI transmitted by the network device.

11. The method of claim 1, wherein, The first antenna polarization mode is used for radio resource management (RRM) measurement and / or radio link management (RLM) measurement.

12. The method of claim 1, wherein, The first BWP is a BWP on a first cell, the first cell corresponds to a plurality of BWPs, and an antenna polarization mode corresponding to physical channel or reference signal transmission on the plurality of BWPs is the first antenna polarization mode.

13. The method of claim 1, wherein, The first BWP is a BWP on a first cell, the first cell corresponds to a plurality of BWPs, and an antenna polarization mode corresponding to physical channel or reference signal transmission on other BWPs in the plurality of BWPs is determined in the same manner as an antenna polarization mode corresponding to first physical channel or first reference signal transmission on the first BWP.

14. The method of claim 1, wherein, The first antenna polarization mode includes a first downlink antenna polarization mode and / or a first uplink antenna polarization mode.

15. The method of claim 1, wherein, The QCL relationship of the first reference signal and the second reference signal is determined according to a second QCL relationship, wherein the second QCL relationship is used to represent the QCL relationship between the BWP ID and the reference signal index.

16. The method of claim 15, wherein, The second QCL relationship is predefined or determined based on at least one of the following: system information, RRC signaling, MAC CE, and DCI sent by the network device.

17. The method of claim 1, wherein, The QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following cases: Doppler shift, Doppler spread, average delay, and delay spread; Doppler shift and Doppler spread; Doppler shift and average delay.

18. The method of claim 1, wherein, The QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following cases: Doppler shift, Doppler spread, average delay, delay spread, and spatial receiving parameter; Doppler shift, Doppler spread, and spatial receiving parameter; Doppler shift, average delay, and spatial receiving parameter; Spatial receiving parameter.

19. The method of claim 1, wherein, The QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following cases: Doppler shift, Doppler spread, average delay, delay spread, and antenna polarization parameter; Doppler shift, Doppler spread, and antenna polarization parameter; Doppler shift, average delay, and antenna polarization parameter; Antenna polarization parameter.

20. The method of claim 1, wherein, The QCL reference signal corresponding to the first reference signal is the second reference signal, including: the parameters of the second reference signal are the QCL reference of the first reference signal, and the parameters include one of the following cases: Doppler shift, Doppler spread, average delay, delay spread, spatial receiving parameter, and antenna polarization parameter; Doppler shift, Doppler spread, spatial receiving parameter, and antenna polarization parameter; Doppler shift, average delay, spatial receiving parameter, and antenna polarization parameter; Spatial receiving parameter and antenna polarization parameter.

21. The method of claim 1, wherein, The second BWP includes a second downlink BWP, and the second reference signal includes at least one of the following: Synchronization signal block, SSB, and CSI-RS.

22. The method of claim 21, wherein, The second downlink BWP is an initial downlink BWP.

23. The method of claim 1, wherein, The first BWP includes a first downlink BWP, and the first reference signal includes at least one of the following: Tracking reference signal, TRS, channel state information reference signal, CSI-RS, demodulation reference signal, DMRS, for a physical downlink control channel, PDCCH, and DMRS for a physical downlink shared channel, PDSCH.

24. The method of claim 1, wherein, The first BWP includes a first downlink BWP, and the first physical channel includes at least one of the following: PDCCH and PDSCH.

25. The method of claim 1, wherein, The second BWP includes a second uplink BWP, and the second reference signal includes SRS.

26. The method of claim 1, wherein, The first BWP includes a first uplink BWP, and the first reference signal includes at least one of the following: Tracking reference signal, TRS, channel sounding reference signal, SRS, demodulation reference signal, DMRS, for a physical uplink control channel, PUCCH, and DMRS for a physical uplink shared channel, PUSCH.

27. The method of any one of claims 1 to 22, 25, 26, wherein, The first BWP includes a first uplink BWP, and the first physical channel includes at least one of the following: PUCCH, PUSCH, and PRACH.

28. A method of wireless communication, comprising: Comprising: The network device sends first information to the terminal device, the first information is used for the terminal device to determine that the antenna polarization mode corresponding to the first physical channel or the first reference signal transmission on the first bandwidth part, BWP, is a first antenna polarization mode, and the quasi co-location, QCL, reference signal corresponding to the first reference signal on the first BWP is a second reference signal on a second BWP; Wherein, the first information includes first configuration information, the first antenna polarization mode is determined based on the first configuration information, the first configuration information includes QCL type configuration information, and the antenna polarization parameter is included in the QCL type configuration information; or, The first antenna polarization mode is determined according to a first QCL relationship, and the first QCL relationship is used to represent the QCL relationship between the BWP identifier, ID, and the reference signal index; Or, The first antenna polarization mode is determined according to the first QCL relationship and a second association relationship, and the second association relationship is used to represent the association relationship between the antenna polarization mode and the reference signal index.

29. The method of claim 28, wherein, The first configuration information is transmitted through at least one of the following signaling: System message, radio resource control, RRC, signaling, medium access control, MAC, control element, CE, and downlink control information, DCI.

30. The method of claim 28, wherein, The first configuration information further includes QCL relationship configuration information.

31. The method of claim 30, wherein, The QCL relationship configuration information is used to determine that the QCL reference signal corresponding to the first reference signal is the second reference signal.

32. The method of claim 28, wherein, The first QCL type is included in the QCL type configuration information, and the parameters included in the first QCL type are one of the following: Spatial receiving parameter and antenna polarization parameter; Antenna polarization parameter.

33. The method of claim 28, wherein, The first QCL type is included in the QCL type configuration information, and the parameters included in the first QCL type are one of the following: Doppler shift, Doppler spread, average delay, delay spread, and antenna polarization parameter; Doppler shift, Doppler spread, antenna polarization parameter; Doppler shift, average delay, antenna polarization parameter.

34. The method of claim 28, wherein, The first antenna polarization mode is an antenna polarization mode associated with a reference signal corresponding to the first BWP.

35. The method of claim 28, wherein, The first QCL relationship is transmitted by at least one of system message, RRC signaling, MAC CE and DCI.

36. The method of claim 28, wherein, The second association relationship is transmitted by at least one of system message, RRC signaling, MAC CE and DCI.

37. The method of claim 28, wherein, The second association relationship is used for radio resource management (RRM) measurement and / or radio link management (RLM) measurement.

38. The method of claim 28, wherein, The first antenna polarization mode is used for radio resource management (RRM) measurement and / or radio link management (RLM) measurement.

39. The method of claim 28, wherein, The first BWP is a BWP on a first cell, the first cell corresponds to a plurality of BWPs, and the antenna polarization mode corresponding to the physical channel or reference signal transmission on the other BWPs in the plurality of BWPs is the same as the antenna polarization mode corresponding to the first physical channel or first reference signal transmission on the first BWP.

40. The method of claim 28, wherein, The first antenna polarization mode includes a first downlink antenna polarization mode and / or a first uplink antenna polarization mode.

41. The method of claim 28, wherein, The first information includes a second QCL relationship, wherein the QCL relationship of the first reference signal and the second reference signal is determined according to the second QCL relationship, and wherein the second QCL relationship is used to represent the QCL relationship between the BWP ID and the reference signal index.

42. The method of claim 28, wherein, The second QCL relationship is transmitted by at least one of system message, RRC signaling, MAC CE and DCI.

43. The method of claim 42, wherein, The QCL reference signal corresponding to the first reference signal is the second reference signal, including that the parameter of the second reference signal is the QCL reference of the first reference signal, and the parameter includes one of the following cases:

44. The method of claim 28, wherein, Doppler shift, Doppler spread, average delay and delay spread; Doppler shift and Doppler spread; Doppler shift and average delay. The QCL reference signal corresponding to the first reference signal is the second reference signal, including that the parameter of the second reference signal is the QCL reference of the first reference signal, and the parameter includes one of the following cases:

45. The method of claim 28, wherein, Doppler shift, Doppler spread, average delay, delay spread and spatial receiving parameter; Doppler shift, Doppler spread and spatial receiving parameter; Doppler shift, average delay and spatial receiving parameter; Spatial receiving parameter. The QCL reference signal corresponding to the first reference signal is the second reference signal, including that the parameter of the second reference signal is the QCL reference of the first reference signal, and the parameter includes one of the following cases:

46. The method of claim 28, wherein, Doppler shift, Doppler spread, average delay, delay spread and antenna polarization parameter; Doppler shift, Doppler spread and antenna polarization parameter; ​ Doppler shift, average delay, and antenna polarization parameters; Antenna polarization parameters.

47. The method of claim 28, wherein, The QCL reference signal corresponding to the first reference signal is the second reference signal, including that a parameter of the second reference signal is QCL reference of the first reference signal, and the parameter includes one of the following cases: Doppler shift, Doppler spread, average delay, delay spread, spatial receiving parameters, and antenna polarization parameters; Doppler shift, Doppler spread, spatial receiving parameters, and antenna polarization parameters; Doppler shift, average delay, spatial receiving parameters, and antenna polarization parameters; Spatial receiving parameters and antenna polarization parameters.

48. The method of claim 28, wherein, The second BWP includes a second downlink BWP, and the second reference signal includes at least one of the following: a synchronization signal block (SSB) and a CSI-RS.

49. The method of claim 48, wherein, The second downlink BWP is an initial downlink BWP.

50. The method of claim 28, wherein, The first BWP includes a first downlink BWP, and the first reference signal includes at least one of the following: A tracking reference signal (TRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS) for a physical downlink control channel (PDCCH), and a DMRS for a physical downlink shared channel (PDSCH).

51. The method of claim 28, wherein, The first BWP includes a first downlink BWP, and the first physical channel includes at least one of the following: A PDCCH and a PDSCH.

52. The method of claim 28, wherein, The second BWP includes a second uplink BWP, and the second reference signal includes an SRS.

53. The method of claim 28, wherein, The first BWP includes a first uplink BWP, and the first reference signal includes at least one of the following: A tracking reference signal (TRS), a channel sounding reference signal (SRS), a demodulation reference signal (DMRS) for a physical uplink control channel (PUCCH), and a DMRS for a physical uplink shared channel (PUSCH).

54. The method of any one of claims 28-49, 52, 53, wherein, The first BWP includes a first uplink BWP, and the first physical channel includes at least one of the following: A PUCCH, a PUSCH, and a PRACH.

55. A terminal device, comprising: Comprising: A processing unit configured to determine that an antenna polarization mode corresponding to a first physical channel or a first reference signal transmission on a first bandwidth part (BWP) is a first antenna polarization mode, and determine that a quasi-co-location (QCL) reference signal corresponding to the first reference signal on the first BWP is a second reference signal on a second BWP; wherein the first antenna polarization mode is determined based on first configuration information transmitted by a network device, the first configuration information including QCL type configuration information, and the QCL type configuration information includes antenna polarization parameters; or the first antenna polarization mode is determined according to a first QCL relationship, and the first QCL relationship is used to represent a QCL relationship between a BWP identifier (ID) and a reference signal index; Or, the first antenna polarization mode is determined according to the first QCL relationship and a second association relationship, and the second association relationship is used to represent an association relationship between an antenna polarization mode and a reference signal index.

56. A network device, comprising: Comprising: A communication unit is configured to send first information to a terminal device, the first information being used by the terminal device to determine that a first antenna polarization mode of a first physical channel or a first reference signal transmission on a first bandwidth part (BWP) is a first antenna polarization mode and a quasi co-location (QCL) reference signal corresponding to the first reference signal on the first BWP is a second reference signal on a second BWP; wherein the first information comprises first configuration information, the first antenna polarization mode is determined based on the first configuration information, the first configuration information comprises QCL type configuration information, the QCL type configuration information comprises an antenna polarization parameter; or the first antenna polarization mode is determined according to a first QCL relationship, the first QCL relationship is used to represent a QCL relationship between a BWP identifier (ID) and a reference signal index; or the first antenna polarization mode is determined according to the first QCL relationship and a second association relationship, the second association relationship is used to represent an association relationship between an antenna polarization mode and a reference signal index. A communication unit is configured to send first information to a terminal device, the first information being used by the terminal device to determine that a first antenna polarization mode of a first physical channel or a first reference signal transmission on a first bandwidth part (BWP) is a first antenna polarization mode and a quasi co-location (QCL) reference signal corresponding to the first reference signal on the first BWP is a second reference signal on a second BWP; wherein the first information comprises first configuration information, the first antenna polarization mode is determined based on the first configuration information, the first configuration information comprises QCL type configuration information, the QCL type configuration information comprises an antenna polarization parameter; or the first antenna polarization mode is determined according to a first QCL relationship, the first QCL relationship is used to represent a QCL relationship between a BWP identifier (ID) and a reference signal index; or the first antenna polarization mode is determined according to the first QCL relationship and a second association relationship, the second association relationship is used to represent an association relationship between an antenna polarization mode and a reference signal index.

57. A terminal device, comprising: A processor and a memory are included, the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to execute the method according to any one of claims 1-27. A processor and a memory are included, the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to execute the method according to any one of claims 28-54.

58. A network device, comprising: A processor is configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-27. A computer program is stored, which causes a computer to execute the method according to any one of claims 1-27.

59. A chip, comprising: Computer program instructions are included, which cause a computer to execute the method according to any one of claims 1-27. A processor is configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 28-54.

60. A computer-readable storage medium, characterized in that, A computer program is stored, which causes a computer to execute the method according to any one of claims 28-54.

61. A computer program product, characterised in that, Computer program instructions are included, which cause a computer to execute the method according to any one of claims 28-54.

62. A chip, comprising: ​ ​ 63. A computer-readable storage medium, characterized in that, ​ 64. A computer program product, characterised in that, ​

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