Information reporting or obtaining method, terminal and network side device

Abstract

The application discloses an information reporting or obtaining method, a terminal and a network side device, and belongs to the technical field of communication. The information reporting method of the application comprises the following steps: a terminal reports first information to a network side device, wherein the first information is used for indicating a first downlink reference signal resource set; the first downlink reference signal resource set is used for determining the transmission parameter of a first uplink reference signal, and the resource in the first downlink reference signal resource set belongs to a second downlink reference signal resource set.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to an information reporting or acquisition method, a terminal, and network-side equipment. Background Technology

[0002] In related technologies, for non-codebook based Physical Uplink Shared Channel (PUSCH) transmission, an associated Channel State Information-Reference Signal (CSI-RS) resource set is configured for each Sounding Reference Signal (SRS) resource set. All transmission parameters, such as precoding information and power control parameters, of the SRS in the SRS resource set configuration are determined based on all K CSI-RS resources in the associated CSI-RS resource set. However, using all K CSI-RS resources to determine the transmission parameters of the uplink reference signal can lead to a mismatch between the transmission parameters calculated by the terminal and the actual situation. For example, the uplink precoding information determined using all K CSI-RS resources may not match the actual receiving port on the network side, potentially causing a reduction in beamforming gain. Summary of the Invention

[0003] This application provides an information reporting or acquisition method, terminal, and network-side device, which can solve the problem that the transmission parameters calculated by the terminal do not match the actual situation due to the fact that only all downlink reference signal resources are supported to determine the transmission parameters, thus affecting the communication performance.

[0004] In a first aspect, an information reporting method is provided, comprising: a terminal reporting first information to a network-side device, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set being used to determine the transmission parameters of a first uplink reference signal, wherein the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0005] Secondly, an information acquisition method is provided, comprising: a network-side device acquiring first information reported by a terminal, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set being used to determine the transmission parameters of a first uplink reference signal, wherein the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0006] Thirdly, an information reporting device is provided, comprising: a first communication module for reporting first information, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set being used to determine the transmission parameters of a first uplink reference signal, wherein the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0007] Fourthly, an information acquisition device is provided, comprising: a second communication module, configured to acquire first information reported by a terminal, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set being used to determine the transmission parameters of a first uplink reference signal, wherein resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0008] Fifthly, an apparatus for reporting or acquiring information is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0009] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0010] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to report first information, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal, and the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0011] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0012] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to acquire first information reported by a terminal, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal, and the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0013] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0014] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0015] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0016] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0017] In this embodiment, the terminal can determine a first downlink reference signal resource set from a second downlink reference signal resource set. The first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal. The terminal reports first information to the network-side device, which indicates the first downlink reference signal resource set. In this embodiment, the terminal can use the selected first downlink reference signal resource set to determine the transmission parameters, making the transmission parameters calculated by the terminal match the actual situation, improving beamforming gain, and enhancing the performance of the communication system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a wireless communication system according to an embodiment of this application; Figure 2 This is a schematic flowchart of an information reporting method according to an embodiment of this application; Figure 3 This is one of the transmission timing diagrams of the information reporting or receiving method according to the embodiments of this application; Figure 4 This is a second schematic diagram of the transmission timing of the information reporting or receiving method according to the embodiments of this application; Figure 5 This is the third schematic diagram of the transmission timing of the information reporting or receiving method according to the embodiments of this application; Figure 6 This is the fourth schematic diagram of the transmission timing of the information reporting or receiving method according to the embodiments of this application; Figure 7 This is the fifth of the transmission timing diagrams of the information reporting or receiving method according to the embodiments of this application; Figure 8 This is a schematic flowchart of an information reporting or receiving method according to an embodiment of this application; Figure 9 This is a schematic flowchart of an information reporting or receiving method according to an embodiment of this application; Figure 10 This is a schematic flowchart of an information reporting or receiving method according to an embodiment of this application; Figure 11 This is a transmission timing diagram of the information reporting or receiving method according to an embodiment of this application; Figure 12 This is a transmission timing diagram of the information reporting or receiving method according to an embodiment of this application; Figure 13 This is a transmission timing diagram of the information reporting or receiving method according to an embodiment of this application; Figure 14 This is a schematic flowchart of an information acquisition method according to an embodiment of this application; Figure 15 This is a schematic diagram of the structure of an information reporting device according to an embodiment of this application; Figure 16 This is a schematic diagram of the structure of an information acquisition device according to an embodiment of this application; Figure 17 This is a schematic diagram of the structure of a communication device according to an embodiment of this application; Figure 18 This is a schematic diagram of the terminal structure according to an embodiment of this application; Figure 19 This is a schematic diagram of the structure of a network-side device according to an embodiment of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0020] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0022] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0023] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform stations). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0024] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), and Binding Support. Functions include BSF, Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), and Non-Terrestrial Network (NTN) devices (such as satellite or high altitude platform stations).It should be noted that the embodiments of this application only use the core network equipment in the NR system as an example for introduction, and do not limit the specific type of core network equipment. If the name of the core network equipment mentioned in the embodiments of this application changes in subsequent protocol versions (such as 6G), it is also within the scope of protection of this application.

[0025] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0026] The TRP in the various embodiments of this application can also be a specific signal-associated TRP or a set of TRPs, or a TRP or a set of TRPs associated with a certain type or group of reference signals. The TRP, etc., can also be generalized to a repeater, a Timing Advance Group (TAG), a cell (such as an NTN, small cell), an Integrated Access and Backhaul (IAB), a beamforming unit, a Quasi-Co-Location (QCL) assumption, a Transmission Configuration Indicator (TCI) state, or a signal-associated transmission unit for a specific purpose. The TRP in various embodiments of this application may also correspond to a carrier, a carrier group, a Synchronization Signal and Physical Broadcast Channel (SSB) block or an SSB group, a signal / signal resource, a signal group / signal resource set, a port or a group of ports, a carrier, a carrier group, a Band Width Part (BWP) or a BWP group, a frequency resource or a frequency resource group, or a certain transmission mode. Accordingly, in various embodiments of this application, the above concepts can be interchanged.

[0027] The Sounding Reference Signal (SRS) in the various embodiments of this application refers to the reference signal sent by the terminal for network-side equipment to perform uplink channel estimation or channel measurement. In NR, it is called SRS. In the various embodiments of this application, SRS can be generalized to any uplink reference signal, uplink reference signal resource, or uplink reference signal resource set that has the above functions, in addition to referring to the SRS signal in NR.

[0028] The Channel State Information-Reference Signal (CSI-RS) in the various embodiments of this application refers to a reference signal transmitted by network-side equipment for functions such as downlink channel estimation, channel measurement, interference measurement, synchronization, beam management, and mobility management. In NR, it is called CSI-RS, including non-zero power (NZP) CSI-RS and zero power (ZP) CSI-RS. In the various embodiments of this application, the CSI-RS, besides referring to the CSI-RS signal in NR, can also be generalized to any downlink reference signal, downlink reference signal resource, downlink reference signal resource set, or TRP that possesses the above functions. For example, it can also be extended to any one of the following reference signals: SSB, Phase Tracking Reference Signal (PTRS), Tracking Reference Signal (TRS), Positioning Reference Signals (PRS), etc. For example, CSI-RS resource sets can also be generalized to TRP groups or sets, or coherent joint receive (CJR) combinations or coherent joint transmission (CJT) combinations.

[0029] The precoding information in various embodiments of this application may include a precoding matrix or a precoding vector.

[0030] In certain scenarios, such as when there is significant obstruction between the terminal and some uplink receiving ports on the network side, or when the terminal detects that the data reception time interval of some TRPs exceeds the cyclic prefix (CP) length, or in multi-user (MU) scenarios, or when the transmission performance is poor due to obstruction, in order to avoid interference with the reception of other uplink data, the terminal side determines that using some receiving ports for uplink transmission will result in better performance. In order to avoid the situation where the transmission parameters calculated by the terminal do not match the actual receiving ports on the network side, which would lead to a reduction in beamforming gain, the terminal can feed back the first downlink reference signal resource set corresponding to the transmission parameters calculated by the terminal to the network side; for example, the aforementioned transmission parameters may include the precoding information of the first uplink reference signal, power control parameters, etc.

[0031] The information reporting or acquisition method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0032] like Figure 2 As shown in the figure, this application embodiment provides an information reporting method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. The method includes the following steps.

[0033] S202: The terminal reports first information to the network-side device, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set being used to determine the transmission parameters of a first uplink reference signal, and the resources in the first downlink reference signal resource set belonging to a second downlink reference signal resource set.

[0034] In some embodiments, the first uplink reference signal may include one or more signals. The first uplink reference signal may be an SRS, and subsequent embodiments will mostly use SRS as an example to describe the first uplink reference signal.

[0035] In some embodiments, the first downlink reference signal resource set includes, for example, a CSI-RS resource set, a CSI-RS port set, a TRP set, an SSB resource set, and an uplink receive port set. Subsequent embodiments will primarily use the CSI-RS resource set as an example to describe the first and second downlink reference signal resource sets.

[0036] The first downlink reference signal resource set and the second downlink reference signal resource set can contain one or more downlink reference signal resources; that is to say, the concept of "resource set" may not exist in the future network-side configuration, but rather several downlink reference signal resources may be configured directly, such as several CSI-RS resources.

[0037] In some embodiments, the terminal reporting first information to the network-side device includes: the terminal sending a first uplink reference signal, the first uplink reference signal carrying the first information; or, the terminal sending a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH), the PUCCH or PUSCH carrying the first information.

[0038] In some embodiments, the terminal may calculate first precoding information for transmitting the first uplink reference signal based on measurements of the first downlink reference signal resource set; further, the terminal transmits the first uplink reference signal according to the first precoding information. Correspondingly, the network-side device receives the first uplink reference signal using the uplink receiving port corresponding to the first downlink reference signal resource set based on the first information.

[0039] The various embodiments of this application can be applied to non-codebook-based uplink transmission, which in NR can be represented as Non-codebook based PUSCH transmission. Non-codebook transmission can be understood as follows: the terminal does not rely on a predefined codebook, but instead autonomously calculates precoding information and sends a first uplink reference signal based on channel estimation. This channel estimation is achieved, for example, through CSI-RS measurement and channel reciprocity. The network-side device obtains the channel state by receiving the terminal's first uplink reference signal and schedules uplink transmission resources, such as PUSCH resources.

[0040] In this embodiment of the application, during uplink transmission based on a non-codebook, the terminal reports first information to the network-side device. The first information can be used to indicate a first downlink reference signal resource set associated with a first uplink reference signal. The resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set. For example, the first downlink reference signal set is a subset of the second downlink reference signal resource set, and the second downlink reference signal resource set is a downlink reference signal resource set associated with the configuration of the first uplink reference signal indicated by the network side (such as an SRS-ResourceSet configuration). The configuration of the first uplink reference signal can be, for example, an SRS-ResourceSet configuration.

[0041] In various embodiments of this application, the first uplink reference signal may be, for example, the SRS in NR; the downlink reference signal resource in the first downlink reference signal resource set or the second downlink reference signal resource set may be, for example, the CSI-RS resource in NR, or simply CSI-RS; the path loss reference signal may be, for example, the pathlossReferenceRS in NR.

[0042] The information reporting method provided in this application embodiment allows a terminal to determine a first downlink reference signal resource set from a second downlink reference signal resource set. The first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal. The terminal then reports first information to the network-side device, which indicates the first downlink reference signal resource set. In this application embodiment, the terminal can use the selected first downlink reference signal resource set to determine the transmission parameters, ensuring that the terminal-calculated transmission parameters match the actual situation, thereby improving beamforming gain and enhancing communication system performance.

[0043] The information reporting method provided in this application embodiment supports the configuration association of the terminal based on the first uplink reference signal in uplink transmission based on non-codebook. K Selecting downlink reference signal resources, calculating the precoding information of the first uplink reference signal from the first set of downlink reference signal resources, etc., for example, selecting... Ku (1≤Ku≤K) The terminal calculates the precoding information of the uplink reference signal based on the selected downlink reference signal resources and determines the corresponding path loss reference signal. Ku Based on a downlink reference signal resource or a determined path loss reference signal, the terminal transmits a first uplink reference signal. Specifically, the terminal, based on the aforementioned... Ku The terminal measures downlink reference signal resources and calculates the first precoding information for transmitting the first uplink reference signal; based on this, the terminal... Ku The path loss reference signal associated with each downlink reference signal resource is used to calculate the transmission power of the first uplink reference signal, etc.

[0044] The information reporting method provided in this application embodiment allows the terminal to determine, based on downlink measurements, a set of receiving ports with good uplink transmission performance or an associated first downlink reference signal resource set according to channel reciprocity. The terminal then feeds back first information to the network-side device. This first information can indicate the first downlink reference signal resource set, or it can be referred to as indicating the terminal's resource, port, or TRP selection result. This avoids situations where the transmission parameters calculated by the terminal do not match the actual receiving ports of the network-side device, which is beneficial for improving beamforming gain and ensuring the reliability and performance gain of uplink transmission.

[0045] In some embodiments, determining the transmission parameters of the first uplink reference signal may include at least one of the following: 1) Determine the precoding information of the first uplink reference signal. For example, the terminal determines the precoding matrix, precoding vector, etc. of the first uplink reference signal based on the downlink reference signal in the first downlink reference signal resource set. In this embodiment, the precoding information is also referred to as the transmission parameters.

[0046] 2) Determine the power control parameters of the first uplink reference signal. For example, determine the associated path loss reference signal based on the first downlink reference signal resource set, and determine the transmission power of the first uplink reference signal based on the path loss reference signal.

[0047] 3) Determine the spatial relationship parameters of the first uplink reference signal. These spatial relationship parameters may include, for example, quasi-co-location (QCL) information, spatial relation information, port association information, and TCI state information.

[0048] 4) Determine the timing advance (TA) of the first uplink reference signal. For example, determine the TA of the first uplink reference signal based on the downlink reference signal in the first downlink reference signal resource set.

[0049] In this embodiment, the terminal can determine the transmission parameters of the first uplink reference signal based on the first downlink reference signal resource set, and then transmit the first uplink reference signal based on the transmission parameters.

[0050] In some embodiments, the resources in the second downlink reference signal resource set are associated with the first uplink reference signal. For example, the second downlink reference signal resource set is a downlink reference signal resource set associated with the configuration of the first uplink reference signal. The configuration of the first uplink reference signal may be, for example, an SRS-ResourceSet configuration.

[0051] In some embodiments, the first downlink reference signal resource set includes a first set, which includes: a portion of resources in one or more of the second downlink reference signal resource sets; or all resources in one or more of the second downlink reference signal resource sets.

[0052] In this embodiment, the first downlink reference signal resource set can be a first set, which can include the following situations: 1) A subset of resources in a second downlink reference signal resource set configured by the network-side equipment.

[0053] 2) A set consisting of subsets of resources from multiple second downlink reference signal resource sets configured by network-side devices.

[0054] 3) One of the multiple sets of second downlink reference signal resources configured on the network side equipment.

[0055] 4) The union of multiple sets of second downlink reference signal resources configured by the network-side equipment.

[0056] 5) A subset of resources in the second downlink reference signal resource set, and the union of other second downlink reference signal resource sets.

[0057] In this embodiment, for example, the two second downlink reference signal resource sets configured by the network-side device are CSI-RS set#1 and CSI-RS set#2, wherein CSI-RS set#1 includes two downlink reference signal resources CSI-RS{#1, #2}; and CSI-RS set#2 includes one downlink reference signal resource CSI-RS{#3}.

[0058] For example, the first set may include a portion of one or more resources from the second downlink reference signal resource set, such as CSI-RS{#1} or CSI-RS{#1, #3}, etc.

[0059] For example, the first set may include all resources in one or more of the second downlink reference signal resource sets, such as CSI-RS{#1, #2, #3}.

[0060] In some embodiments, the first downlink reference signal resource set includes a plurality of first sets, the first set including: a portion of resources in one or more second downlink reference signal resource sets; or all resources in one or more second downlink reference signal resource sets.

[0061] In this embodiment, the first downlink reference signal resource set may include multiple first sets, and the first sets can be referred to the description of the previous embodiment.

[0062] In this embodiment, the first downlink reference signal resource set includes multiple first sets, which can be applied in uplink multi-stream transmission or multi-panel transmission scenarios.

[0063] In this embodiment, for example, the two second downlink reference signal resource sets configured by the network-side device are CSI-RS set#1 and CSI-RS set#2, wherein CSI-RS set#1 includes two downlink reference signal resources CSI-RS{#1, #2}; and CSI-RS set#2 includes one downlink reference signal resource CSI-RS{#3}.

[0064] In this embodiment, the two first sets can be CSI-RS{#1, #2, #3} and CSI-RS{#3}, respectively. The terminal wants to perform two-stream uplink transmission, where the first stream is associated with CSI-RS{#1, #2, #3} and the second stream is associated with CSI-RS{#3}. Here, the first stream includes all resources of CSI-RS set#1 and all resources of CSI-RS set#2; the second stream includes all resources of CSI-RS set#2.

[0065] In some embodiments, the first information may further include at least one of the following: 1) Receive indication information, the indication information being used to indicate whether the network-side device should collaboratively receive the first uplink reference signal associated with multiple first sets; wherein, the first downlink reference signal resource set includes the multiple first sets.

[0066] This example can be applied to scenarios where the first downlink reference signal resource set includes the plurality of first sets.

[0067] In this example, whether the network-side devices cooperate in receiving the first uplink reference signals associated with multiple first sets may affect the transmission power of the first uplink reference signals. For details, please refer to the description of the embodiments below.

[0068] 2) Transport layer information, which is used to indicate at least one of the following associated with the first set: transport layer index, maximum number of transport layers, rank, number of transport data streams, and transport data stream index.

[0069] In this embodiment, when the first downlink reference signal resource set includes one first set, the first information may further include transport layer information; when the first downlink reference signal resource set includes multiple first sets, the first information may further include transport layer information or reception indication information.

[0070] In this embodiment, when uplink multi-stream transmission occurs and different streams are associated with different first sets, the terminal can provide feedback on transport layer information and reception indication information.

[0071] In some embodiments, the method further includes: the terminal transmitting the first uplink reference signal based on first precoding information or second precoding information; wherein the first precoding information includes: precoding information calculated by measuring the first downlink reference signal resource set; the second precoding information includes: precoding information used to transmit the second uplink reference signal, wherein the transmission time of the second uplink reference signal is earlier than the transmission time of the first uplink reference signal.

[0072] In this embodiment, the terminal can calculate first precoding information for transmitting the first uplink reference signal based on measurements of the first downlink reference signal resource set; further, the terminal transmits the first uplink reference signal according to the first precoding information. Correspondingly, the network-side device receives the first uplink reference signal using the uplink receiving port corresponding to the first downlink reference signal resource set.

[0073] In this embodiment, the terminal can transmit the first uplink reference signal based on the second precoding information used to transmit the second uplink reference signal. For example, when the time interval between the reception time of the first downlink reference signal resource set and the transmission time of the first uplink reference signal is less than a certain threshold, the terminal can transmit the first uplink reference signal based on the second precoding information. Correspondingly, the network-side device receives the first uplink reference signal using the uplink receiving port that receives the second uplink reference signal.

[0074] The second uplink reference signal can be a default uplink reference signal that is specified by the protocol, configured on the network side, or confirmed by the terminal based on a certain predefined method.

[0075] In some embodiments, before the terminal reports the first information to the network-side device, the method further includes: the terminal receiving second information sent by the network-side device, and the terminal determining the first information based on the second information. The second information can be used to instruct the terminal to determine restriction information of the first downlink reference signal resource set; that is, the terminal can determine the first downlink reference signal resource set based on the restriction information, thereby improving the accuracy of the determined first downlink reference signal resource set.

[0076] In some embodiments, the above limiting information includes at least one of the following: 1) The maximum time difference information is used to indicate the maximum time difference between the time when the terminal receives the downlink reference signal and the reference time.

[0077] The aforementioned reference time may be the time when the terminal receives the earliest or latest downlink reference signal in the first downlink reference signal resource set, or the average or median of the reception times of all downlink reference signals in the first downlink reference signal resource set, or a certain time point indicated by the network side or predefined by the protocol.

[0078] For example, the maximum time difference can be set to the length of the cyclic prefix (CP) by default.

[0079] 2) Maximum number of receiving ports N M ，N MIt is a positive integer. Maximum number of receive ports. N M The number of downlink reference signal resources can be equal to the number of downlink reference signal resources in the first downlink reference signal resource set.

[0080] 3) Maximum number of collaborative TRPs K M ，K M It is a positive integer. Maximum number of collaborative TRPs. K M The number of downlink reference signal resources can be equal to the number of downlink reference signal resources in the first downlink reference signal resource set.

[0081] In this embodiment, the terminal can determine the first downlink reference signal resource set based on the restriction information indicated by the network-side device, thereby improving the accuracy of the determined first downlink reference signal resource set.

[0082] In some embodiments, the terminal determines that the first information includes at least one of the following based on the second information: 1) Based on the information of the maximum time difference, the terminal selects downlink reference signals or downlink reference signals corresponding to TRPs whose reception time is within the maximum time difference to form the first downlink reference signal set, and determines the first information based on the first downlink reference signal set, such as determining the selected TRP or CSI-RS identification information.

[0083] 2) The terminal selects based on the maximum number of receiving ports. N M The downlink reference signal ports with the best channel conditions constitute the first downlink reference signal resource set. The first information is determined based on the first downlink reference signal set. The first information may be information of the receiving port indicated by a bitmap.

[0084] In various embodiments of this application, the concepts of downlink reference signal port, uplink receiving port, or port can have a one-to-one correspondence with the downlink reference signal; or, the concepts of downlink reference signal port, uplink receiving port, or port can be equivalent to the downlink reference signal. For example, the first set of downlink reference signals can be represented as a set of ports or a set of uplink receiving ports.

[0085] For example, the second downlink reference signal resource set includes four ports of CSI-RS. The terminal can select two ports from these four ports to form a port set and report the port set to the network-side device through the first information.

[0086] 3) The terminal selects based on the maximum number of collaborative TRPs. K MThe downlink reference signal with the best reception performance constitutes the first downlink reference signal resource set. The first information is determined based on the first downlink reference signal set. The first information may indicate the selected TRP or CSI-RS identification information.

[0087] The receiving performance includes evaluation metrics such as signal-to-interference plus noise ratio (SINR), signal-to-noise ratio (SNR), reference signal-receiving power (RSRP), reference signal-receiving quality (RSRQ), and signal-to-interference ratio (SIR).

[0088] In some embodiments, the method further includes: the terminal determining, based on third information, precoding information used to transmit the first uplink reference signal or the transmission timing of the first uplink reference signal; wherein the third information may be transmitted by a network-side device or predefined by a protocol, and the third information includes at least one of the following: 1) First effective date The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device can receive the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set.

[0089] In this example, the time of reporting the first information includes, for example, the time of the last time unit (e.g., OFDM symbol) of reporting the first information.

[0090] In this example, the reception time of receiving the first uplink reference signal includes, for example, the time of receiving the first time unit of the first uplink reference signal.

[0091] 2) First time interval The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information and the time when the network-side device receives the first information.

[0092] First time interval It can be used to represent the transmission time between the terminal and the network-side device.

[0093] In this example, the time of reporting the first information includes, for example, the time of the first time unit (e.g., OFDM symbol) of reporting the first information.

[0094] In this example, the time of receiving the first information includes, for example, the time of receiving the first time unit of the first information.

[0095] 3) Second effective date The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

[0096] In this example, the time of receiving the first information includes, for example, the time of the last time unit in which the first information was received.

[0097] In this example, the reception time of receiving the first uplink reference signal includes, for example, the time of receiving the first time unit of the first uplink reference signal.

[0098] 4) Second time interval, which is used to indicate the time requirement for sending the first uplink reference signal. For specific applications, please refer to the following embodiments.

[0099] 5) Priority information, which indicates the priority of the first uplink reference signal. This priority information can indicate the priority of the terminal transmitting different types of uplink signals, including the priority of transmitting the first uplink reference signal.

[0100] The time unit in various embodiments of this application can be an OFDM symbol, a slot or subframe, a frame, or a symbol corresponding to other signal waveforms, etc.

[0101] For example, in the above embodiments, at least one of the first effective time, second effective time, first time interval, and second time interval predefined by the protocol can be a function f(K) of the number of downlink reference signal resources K. Optionally, K may not necessarily appear directly in the formula f(.), or K may determine the range of a certain parameter in the formula f(.). For example, the function f(.) is a function of the sub-carrier spacing SCS, where the SCS is the minimum SCS among the K downlink reference signal resources, or the minimum SCS among the K downlink reference signal resources and the first uplink reference signal resource.

[0102] In some embodiments, the terminal determines, based on third information, that the precoding information used to transmit the first uplink reference signal includes at least one of the following: 1) Under the condition of satisfying Earlier In this case, the terminal uses the second precoding information as the precoding information used to transmit the first uplink reference signal.

[0103] In this example, the "+" in the expression indicates that the time is forward, for example, express The moment passed The moment; "-" indicates time moving forward, and the same applies to subsequent moments.

[0104] 2) Under the condition of satisfying equal In this case, the terminal uses either the first precoding information or the second precoding information as the precoding information used to transmit the first uplink reference signal.

[0105] Because the first precoding information is more compatible with the receiving port of the network-side device, the beamforming gain is improved; or, the previously used second precoding information or the second precoding information corresponding to the default second uplink reference signal is used to ensure the robustness and reliability of communication.

[0106] 3) Under the condition of satisfying Later In this case, the terminal uses the first precoding information as the precoding information used to send the first uplink reference signal.

[0107] 4) In order to satisfy Earlier In this case, the terminal uses the second precoding information as the precoding information used to transmit the first uplink reference signal.

[0108] 5) Under the condition of satisfying equal In this case, the terminal uses either the first precoding information or the second precoding information as the precoding information used to transmit the first uplink reference signal.

[0109] Because the first precoding information is more compatible with the receiving port of the network-side device, the beamforming gain is improved; or, the previously used second precoding information or the second precoding information corresponding to the default second uplink reference signal is used to ensure the robustness and reliability of communication.

[0110] 6) Under the condition of satisfying Night In this case, the terminal uses the first precoding information as the precoding information used to send the first uplink reference signal.

[0111] in, The terminal reports the sending time of the first information, for example, the time of the last time unit of the first information.

[0112] The transmission time of the first uplink reference signal sent by the terminal, for example, the time of the first time unit of sending the first uplink reference signal.

[0113] First time interval The network side provides information via a third party; or, the network-side device indicates the correlation between transmission time and downlink transmission resources. The terminal determines the path loss reference signal associated with the first uplink reference signal, and uses the transmission time between the terminal and the network-side device corresponding to the path loss reference signal as the first time interval. .

[0114] First effective date Second effective time Please refer to the description of the previous embodiments.

[0115] The first precoding information includes precoding information calculated from measurements of the first downlink reference signal resource set; the second precoding information includes precoding information used to transmit the second uplink reference signal, wherein the transmission time of the second uplink reference signal is earlier than the transmission time of the first uplink reference signal. The second uplink reference signal can be found in the description of the previous embodiments.

[0116] The above embodiments describe how the terminal determines the precoding information used to transmit the first uplink reference signal based on third information. For the network-side device, the behavior of the network-side device receiving the first uplink reference signal includes at least one of the following: 1) Under the condition of satisfying Earlier In this case, the network-side device uses the receiving port for receiving the second uplink reference signal to receive the first uplink reference signal.

[0117] 2) Under the condition of satisfying equal In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal, the network-side device may receive the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set.

[0118] Since the terminal can use the second precoding information to transmit the first uplink reference signal (which can be previously used precoding information or precoding information corresponding to the default second uplink reference signal), the network-side device uses the receiving port that receives the second uplink reference signal to receive the first uplink reference signal, ensuring the robustness and reliability of communication. Alternatively, since the terminal can use the first precoding information to transmit the first uplink reference signal (obtained based on the first downlink reference signal resource set), the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal, improving beamforming gain.

[0119] 3) Under the condition of satisfying Later In this case, the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

[0120] 4) In order to satisfy Earlier In this case, the network-side device uses the receiving port for receiving the second uplink reference signal to receive the first uplink reference signal.

[0121] 5) Under the condition of satisfying equal In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal, the network-side device may receive the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set.

[0122] Since the terminal can use the second precoding information to transmit the first uplink reference signal (which can be previously used precoding information or precoding information corresponding to the default second uplink reference signal), the network-side device uses the receiving port that receives the second uplink reference signal to receive the first uplink reference signal, ensuring the robustness and reliability of communication. Alternatively, since the terminal can use the first precoding information to transmit the first uplink reference signal (obtained based on the first downlink reference signal resource set), the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal, improving beamforming gain.

[0123] 6) Under the condition of satisfying Later In this case, the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

[0124] in, The receiving time of the first information received by the network-side device, for example, the time of the last time unit of receiving the first information.

[0125] The reception time of the first uplink reference signal received by the network-side device, for example, the time of receiving the first time unit of the first uplink reference signal.

[0126] First time interval First effective date Second effective time Please refer to the description of the previous embodiments.

[0127] In some embodiments, the terminal determining the transmission timing of the first uplink reference signal based on third information includes: the terminal transmitting the first uplink reference signal after a fifth time interval following the transmission time of the first information, wherein the fifth time interval includes at least one of the following: 1) The second effective time, or the difference between the first effective time and the first time interval.

[0128] 2) First interval, the first interval is the time interval between the transmission time of the first information and the transmission time of the first uplink reference signal.

[0129] 3) The second interval is the time interval between the transmission time of the first information and the transmission time of the first uplink reference signal in the next cycle.

[0130] 4) The third interval is the time interval between the first moment after the preset time interval of the first information transmission time and the transmission time of the first uplink reference signal in the next cycle after the first moment.

[0131] The first, second, and third intervals mentioned above can be configured by the network-side equipment; or they can be calculated by the terminal based on a formula, which can be configured by the network-side equipment or predefined.

[0132] It can be understood that the above transmission time represents the start time of the terminal transmitting the signal, or it can be represented as the start boundary of the first time unit of the terminal transmitting the signal. The signal mentioned here can represent the first information, or the first uplink reference signal, or any other uplink signal.

[0133] The above embodiments describe how, when the first uplink reference signal does not conflict with or overlap with other signals, the terminal transmits the first uplink reference signal based on its transmission timing, that is, after the fifth time interval following the transmission of the first information. The following embodiments will describe how the terminal transmits the first uplink reference signal or the first uplink signal when the first uplink reference signal conflicts with or overlaps with other first uplink signals; wherein, the first uplink signal is a signal other than the first uplink reference signal.

[0134] In some embodiments, the terminal determines the transmission timing of the first uplink reference signal based on third information, including one of the following: 1) In the case where the first uplink reference signal overlaps with the first uplink signal, the terminal waits for a second time interval after the first uplink signal has finished being sent before sending the first uplink reference signal.

[0135] For example, if the terminal is sending the first uplink reference signal while it is sending the first uplink signal, it will wait for a second time interval after the first uplink signal has finished being sent before sending the first uplink reference signal again.

[0136] For example, such as Figure 3 As shown, if the transmission time of the first uplink reference signal, determined based on the fifth time interval, is within the transmission time period of the first uplink signal, then the terminal will wait for the second time interval after the first uplink signal transmission ends before transmitting the first uplink reference signal.

[0137] The first uplink signal in various embodiments of this application is a signal other than the first uplink reference signal.

[0138] 2) When the first uplink reference signal overlaps with the first uplink signal, and the priority of the first uplink signal is lower than that of the first uplink reference signal, the terminal sends the first uplink reference signal.

[0139] For example, if the terminal is sending other lower-priority first uplink signals while sending the first uplink reference signal, the terminal stops sending the first uplink signal and directly sends the first uplink reference signal.

[0140] For example, such as Figure 4 As shown, at the transmission time of the first uplink reference signal determined based on the fifth time interval, there is a first uplink signal being transmitted, but the first uplink signal has a low priority, so the terminal stops transmitting the first uplink signal and directly transmits the first uplink reference signal.

[0141] 3) If a first uplink signal is transmitted during the time interval of transmitting the first uplink reference signal, and the priority of the uplink signal is higher than the priority of the first uplink reference signal, the terminal transmits the first uplink reference signal after the second time interval after the transmission of the first uplink signal ends.

[0142] For example, if a higher-priority first uplink signal is sent during the time interval in which the terminal sends the first uplink reference signal, then the terminal will send the first uplink reference signal again after a second time interval following the end of the first uplink signal transmission.

[0143] For example, such as Figure 5 As shown, at the transmission time of the first uplink reference signal determined based on the fifth time interval, no other uplink signals are transmitted. However, before the first uplink reference signal is completed, a first uplink signal with a higher priority begins to be transmitted. In this case, the terminal waits for the first uplink signal with the higher priority to be transmitted, and then waits for the second time interval before transmitting the first uplink reference signal.

[0144] 4) When the first uplink reference signal and the first uplink signal overlap, the terminal sends the first uplink reference signal or the first uplink signal based on the priority of the first uplink signal and the priority of the first uplink reference signal.

[0145] For example, if a terminal sends the first uplink reference signal while a first uplink signal is being sent simultaneously, the terminal will send the signal with the higher priority according to the priority.

[0146] For example, if the transmission time of the first uplink reference signal, determined based on the fifth time interval, coincides with the transmission time of the first uplink signal, then the signal with higher priority will be transmitted according to priority.

[0147] For example, such as Figure 6 As shown, if the first uplink signal has a higher priority, then the first uplink reference signal waits for the first uplink signal to finish sending, and then waits for the second time interval before sending the first uplink reference signal.

[0148] For example, such as Figure 7 As shown, if the first uplink signal has a lower priority, then the first uplink reference signal is sent directly.

[0149] It is understood that the second time interval in various embodiments of this application may be indicated by the network side or predefined by the protocol; it is understood that the value of the second time interval may be 0 or other predefined values.

[0150] In some embodiments, before the terminal reports the first information to the network-side device, the method further includes: the terminal receiving fourth information sent by the network-side device, the fourth information indicating whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set. Of course, in this embodiment, the fourth information indicates that the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set.

[0151] In some embodiments, the fourth information is indicated by a parameter field in the configuration of the first uplink reference signal; In this embodiment, the fourth information can be a parameter field in the configuration of the first uplink reference signal. When the configuration of the first uplink reference signal includes this parameter field, it indicates that the terminal can select a portion of the downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set, which is used to calculate the precoding information of the first uplink reference signal. Alternatively, when the configuration of the first uplink reference signal does not include this parameter field, it indicates that the terminal can select a portion of the downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set, which is used to calculate the precoding information of the first uplink reference signal.

[0152] For example, the fourth information is the first parameter, such as allowSelect. When the SRS-ResourceSet configuration of the network-side device includes the first parameter, the terminal can select a portion of the CSI-RS resources or CSI-RS ports in the CSI-RS resourceset associated with the SRS-ResourceSet configuration as the first downlink reference signal resource set, which is used to calculate the precoding information of SRS and send SRS using the precoding information.

[0153] In some embodiments, the fourth information is indicated by bit information associated with the configuration of the first uplink reference signal.

[0154] In this embodiment, the fourth information is bit information, which is associated with the configuration of the first uplink reference signal. When the bit information is 1, it indicates that the terminal can select a portion of the downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set; or, when the bit information is 0, it indicates that the terminal cannot select a portion of the downlink reference signals from the second downlink reference signal resource set, and can only calculate the precoding information of the first uplink reference signal based on the second downlink reference signal resource set. Alternatively, the meanings of the bit information being 1 and 0 can be interchanged.

[0155] For example, the fourth information is a bit information. When the bit information in the SRS-ResourceSet configuration of the network-side device is 1, the terminal can select a portion of the CSI-RS resources or CSI-RS ports in the CSI-RS resource set associated with the SRS-ResourceSet configuration as the first downlink reference signal resource set, which is used to calculate the precoding information of SRS and send SRS using the precoding information.

[0156] In some embodiments, after the terminal reports the first information to the network-side device, the method further includes: the terminal receiving fifth information sent by the network-side device, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal; and the terminal sending the first uplink reference signal based on the fifth information.

[0157] The fifth piece of information may be carried by Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC CE) signaling, or Downlink Control Information (DCI) signaling.

[0158] The fifth piece of information includes at least one of the following: 1) The third downlink reference signal resource set associated with the first uplink reference signal, that is, the terminal no longer determines the transmission parameters of the first uplink reference signal based on the first downlink reference signal resource set, but determines the transmission parameters of the first uplink reference signal based on the third downlink reference signal resource set.

[0159] 2) First resource indication information, which is used to indicate the downlink reference signal resource or downlink reference signal resource set associated with the first uplink reference signal. The terminal can determine the transmission parameters of the first uplink reference signal based on the downlink reference signal resource or downlink reference signal resource set.

[0160] The first resource indication information is used to indicate all downlink reference signal resources associated with the first uplink reference signal, or the identification information corresponding to these downlink reference signal resources.

[0161] For example, a bitmap sequence indicating resources triggered by a network-side device, wherein the length of the bitmap sequence is equal to the number of downlink reference signal resources in the second downlink reference signal resource set, where 1 indicates that the downlink reference signal resource corresponding to this bit is triggered, and 0 indicates that the downlink reference signal resource corresponding to this bit is not triggered. It can be understood that the bits in the bitmap correspond to downlink reference signal resources of the same order in the second downlink reference signal resource set.

[0162] For example, a bitmap sequence indicating that a resource is mute on the network side. The length of the bitmap sequence is equal to the number of downlink reference signal resources in the second downlink reference signal resource set. A 1 indicates that the downlink reference signal resource corresponding to this bit is mute, and a 0 indicates that the downlink reference signal resource corresponding to this bit is mutated. It can be understood that the bits in the bitmap correspond to downlink reference signal resources of the same order in the second downlink reference signal resource set.

[0163] 3) TCI status information.

[0164] The TCI status information is associated with different resource subsets in the second downlink reference signal resource set, and the association between the TCI status information and the resource subsets is indicated by the network-side device or predefined by the protocol.

[0165] 4) Power control parameter indication information.

[0166] The power control parameter indication information may be, for example, path loss reference signal (pathlossReferenceRS) information, which is associated with different resource subsets in the second downlink reference signal resource set. The association between the path loss reference signal information and the resource subsets is indicated by the network-side device or predefined by the protocol.

[0167] 5) Port set identification information.

[0168] For example, an indicator for the CSI-RS port group index (id) is provided, which is indicated by the network-side device or predefined by the protocol.

[0169] 6) First port indication information: The first port indication information can indicate the port information used for uplink reception.

[0170] For example, the first port indication information is a bitmap sequence, the length of which is equal to the number of downlink reference signal ports in the second downlink reference signal resource set, such as the total number of CSI-RS ports. A 1 indicates that the downlink reference signal port corresponding to this bit is triggered, and a 0 indicates that the downlink reference signal port corresponding to this bit is not triggered. It can be understood that the bits in the bitmap correspond to downlink reference signal ports of the same order in the second downlink reference signal resource set; where triggering a port indicates using that port to send downlink signals or receive uplink signals.

[0171] For the indication of consecutive ports, the first port indication information can indicate the starting port position and the total number of ports Q, indicating that Q consecutive ports starting from the starting port position are used for receiving the first uplink reference signal.

[0172] For example, it indicates port information not used for uplink reception, such as a bitmap sequence, the length of which is equal to the number of downlink reference signal ports in the second downlink reference signal resource set, such as the total number of CSI-RS ports. 1 indicates that the downlink reference signal port corresponding to this bit is muted, and 0 indicates that the downlink reference signal port corresponding to this bit is enabled.

[0173] 7) TRP group information or frequency domain resource information.

[0174] The TRP group information could be, for example, a TRP group index; or, a set of TRPs used for Coherent Joint Reception (CJR), such as {TRP#1, TRP#2, TRP#3}.

[0175] The frequency domain resource information may be, for example, a frequency domain resource group identifier or a set of frequency domain resources such as a carrier group, BWP group, or frequency band group.

[0176] In some embodiments, the terminal sending the first uplink reference signal based on the fifth information includes one of the following: 1) If the fifth information is received within a fourth time interval after the first information is reported, the terminal sends the first uplink reference signal based on the fifth information.

[0177] In this embodiment, if the network-side device sends the fifth information within a third time interval after receiving the first information; or, if the terminal receives the fifth information within a fourth time interval after reporting the first information, then the terminal sends the first uplink reference signal according to the fifth information.

[0178] One possible relationship is: the fourth time interval = the third time interval + 2 * the first time interval.

[0179] 2) If the fifth information is received after a fourth time interval following the reporting of the first information, the terminal retransmits the first uplink reference signal based on the fifth information; wherein, before receiving the fifth information, the terminal has already transmitted the first uplink reference signal based on the second downlink reference signal resource set or the first downlink reference signal resource set.

[0180] In this embodiment, if the network reports sending the fifth information after a third time interval following the receipt of the first information, or if the terminal receives the fifth information after a fourth time interval following the reporting of the first information, then the terminal retransmits the first uplink reference signal based on the fifth information. Specifically, before receiving the fifth information, the terminal has already transmitted the first uplink reference signal based on either the second downlink reference signal resource set or the first downlink reference signal resource set.

[0181] In some embodiments, the first information includes at least one of the following: 1) Second resource indication information, which is used to indicate the downlink reference signal resources included in the first downlink reference signal resource set, or to indicate the uplink resources corresponding to the first downlink reference signal resource set.

[0182] In this embodiment, the terminal can explicitly provide feedback on all downlink reference signal resources included in the first downlink reference signal resource set, or the identification information corresponding to these downlink reference signal resources, or the uplink resource identifiers corresponding to these downlink reference signal resources.

[0183] 2) Second port indication information, which is used to indicate the uplink receiving port corresponding to the first downlink reference signal resource set.

[0184] In this embodiment, the terminal explicitly provides feedback on the port information used for uplink reception. For example, a bitmap indicates the set of port indices to be selected or not selected.

[0185] 3) Sequence coding information, wherein the sequence coding information is associated with the first downlink reference signal resource set.

[0186] The sequence encoding information includes cyclic shift information or belongs to a code field resource.

[0187] In this embodiment, the terminal implicitly feeds back the first information, that is, the terminal feeds back the first downlink reference signal resource set based on the association between the sequence coding information and the downlink reference signal resource set.

[0188] The sequence encoding information may include cyclic shift information of the first uplink reference signal, such as cyclic shift information of the SRS sequence. Different cyclic shift values ​​are associated with different downlink reference signal resource sets, and these associations are pre-indicated by the network side or predefined by the protocol. In this case, the sequence encoding information is implicit in the code domain resources or sequence information of the first uplink reference signal; that is, the first information is implicit in the code domain resources or sequence information of the first uplink reference signal. The network-side device can determine the sequence encoding information through blind detection, and thus determine the first downlink reference signal resource set or TRP set selected by the terminal, without requiring the terminal to separately report the first information on other time domain resources.

[0189] This embodiment does not require sending the first information separately on additional time resources. Instead, it implicitly indicates the TRP selection result by sending the sequence cyclic shift of SRS or code field resources, making the interaction process between the terminal and the network simpler.

[0190] The sequence encoding information may include the sequence encoding information of PUCCH or PUSCH, which is associated with the first uplink reference signal.

[0191] For example, the sequence encoding information is the sequence selection information of PUCCH. For instance, the cyclic shift information of PUCCH format 0 can support 12 cyclic shifts of a sequence on one PRB, each corresponding to a subset of downlink reference signal resources; wherein different cyclic shift values ​​of PUCCH are associated with different sets of downlink reference signal resources, and the association is pre-indicated by the network side or predefined by the protocol; wherein the PUCCH resource is associated with the first uplink reference signal resource, and the association is pre-indicated by the network side or predefined by the protocol.

[0192] Furthermore, in addition to sequence coding information, the first information may also include precoding information of the first uplink reference signal, such as feature vector information.

[0193] In some embodiments, the second resource indication information includes at least one of the following: 1) A bitmap sequence used to indicate the downlink reference signal resources selected by the terminal from the second downlink reference signal resource set.

[0194] For example, a bitmap sequence indicating the CSI-RS resource selected by the terminal, the length of which is equal to the number of all downlink reference signal resources in the second downlink reference signal resource set (e.g., the number of CSI-RS resources in the CSI-RS resource set configured in the SRS-ResourceSet). A 1 indicates that the downlink reference signal resource corresponding to that bit is selected, and a 0 indicates that the downlink reference signal resource corresponding to that bit is not selected. It can be understood that the bits in the bitmap correspond to downlink reference signal resources of the same order in the downlink reference signal resource set, and the number of 1s in the bitmap is the same as the number of downlink reference signal resources in the first downlink reference signal resource set.

[0195] 2) A bitmap sequence used to indicate that the terminal has not selected any downlink reference signal resources from the second downlink reference signal resource set.

[0196] For example, a bitmap sequence indicating which CSI-RS resource the terminal does not select, the length of which is equal to the number of all downlink reference signal resources in the second downlink reference signal resource set (e.g., the number of CSI-RS resources in the CSI-RS resource set configured in the SRS-ResourceSet). A 1 indicates that the downlink reference signal resource corresponding to that bit is not selected, and a 0 indicates that the downlink reference signal resource corresponding to that bit is selected. It can be understood that the bits in the bitmap correspond to downlink reference signal resources of the same order in the downlink reference signal resource set, and the number of 0s in the bitmap is the same as the number of downlink reference signal resources in the first downlink reference signal resource set.

[0197] 3) Identification information of downlink reference signal resources in the first downlink reference signal resource set.

[0198] For example, the identification information of all downlink reference signal resources in the first downlink reference signal resource set.

[0199] 4) TRP or TRP group identification information, which is associated with the first downlink reference signal resource set.

[0200] In this example, the terminal feeds back the first downlink reference signal set by feeding back the selected TRP or TRP group identification information.

[0201] 5) Port or port group information, which is associated with the first downlink reference signal resource set.

[0202] 6) Identification information of the downlink reference signal resource set, wherein the identification information of the downlink reference signal resource set is pre-indicated by the network-side device or predefined by the protocol.

[0203] 7) Predefined uplink resource identification information, which is associated with the first downlink reference signal resource set.

[0204] For example, a predefined uplink resource identifier, such as an SRS resource index or an SRS resourcesubset index, is associated with a first downlink reference signal resource set.

[0205] In some embodiments, the transmission resource of the first information is associated with the first uplink reference signal; or, the first information is indicated by the sequence encoding information of the first uplink reference signal. For example, the terminal transmits the first information on the PUXCH (PUCCH or PUSCH) resource associated with the first uplink reference signal, wherein the PUXCH resource is an uplink transmission resource for feeding back the first information, which is a network-side reporting indication or a protocol-preconfigured resource.

[0206] The resource for transmitting the first information can be an uplink resource associated with the first uplink reference signal, such as a PUCCH resource or a PUSCH resource.

[0207] If the transmission resource of the first information is associated with the first uplink reference signal, then the transmission resource of the first information can be at least one of the following: 1) The network-side terminal pre-configures, for example, the network-side reported resources reserved or pre-configured for the transmission of the first information, such as PUCCH or PUSCH resources, and the terminal sends the first information based on the pre-configured resources.

[0208] 2) Dynamically configured on the network side, for example, the network side reports the transmission resources used by the terminal to send the first information via DCI.

[0209] Furthermore, the resource for sending the first information can be at least one of the following methods: 1) The transmission resource of the first information is associated with the first uplink reference signal. For example, the network-side device configures a first resource for each SRS-ResourceSet. The configuration can be pre-configured or dynamically indicated by RRC signaling, MAC CE signaling, or DCI signaling. For example, it can be configured in the RRC field of the SRS-ResourceSet in NR.

[0210] It is understandable that each SRS resource set is associated with a PUCCH or PUSCH resource used to report the first information. The PUCCH or PUSCH resources associated with different SRS resource sets are independent and can be configured and updated independently.

[0211] The terminal reports the first information on the associated PUCCH or PUSCH resource according to the resource set configuration corresponding to the first uplink reference signal, such as the SRS-ResourceSet configuration.

[0212] 2) The transmission resources of the first information are associated with the data transmission of the PUSCH. For example, the network-side device configures a second resource for the PUSCH. The configuration can be pre-configured or dynamically indicated through RRC, MAC CE, or DCI signaling. For example, it can be configured in the RRC field of PUSCH-Config in NR.

[0213] It is understood that all the first uplink reference signals (e.g., all configured SRS resource sets) are collectively associated with one or a group of PUCCH or PUSCH resources, or they may be associated with a PUCCH or PUSCH resource pool.

[0214] Furthermore, the terminal may indicate the association between the terminal identification information and the resource set configuration corresponding to the first uplink reference signal in the first information. For example, the scrambling sequence of the first information may be determined based on the terminal identification information (ue-Identity) or the resource set configuration identification information corresponding to the first uplink reference signal, or a parameter field may be added to the first information to indicate the identification information of the first uplink reference signal. The resource set configuration may be, for example, an SRS-ResourceSet configuration; the resource set configuration identification information may be, for example, srs-ResourceSetId.

[0215] In some embodiments, the method further includes: the terminal transmitting the first uplink reference signal based on the timing relationship between the transmission resources of the first information and the first uplink reference signal.

[0216] In some embodiments, the configuration of the first uplink reference signal is associated with the transmission resources of the first information; or, the transmission resources of the first information are associated with the configurations of multiple first uplink reference signals.

[0217] In some embodiments, the second downlink reference signal resource set can be indicated by second configuration information on the network side, which can be used to indicate the SRS-ResourceSet configuration. For example, the network-side device sends the second configuration information via RRC signaling, including the SRS-ResourceSet configuration, which includes the associated second downlink reference signal resource set (CSI-RS resource set). The terminal selects some or all of the downlink reference signal resources (CSI-RS resources) from the second downlink reference signal resource set to form the first downlink reference signal set.

[0218] To explain in detail the information reporting or acquisition method provided in the embodiments of this application, the following will be described in conjunction with several specific embodiments.

[0219] This application provides an embodiment that mainly describes the process by which a UE directly reports first information through a bitmap.

[0220] Taking the SRS-ResourceSet indicated by the network side as an example, consider the configuration and transmission of periodic or semi-persistent SRS. Assume the network side configures the SRS-ResourceSet to be associated with the second downlink reference signal resource set as CSI-RS resource set#0, including K=4 CSI-RS resources: {CSI-RS#0, CSI-RS#1, CSI-RS#2, CSI-RS#3}. The network side allows the UE to select some or all of these CSI-RS resources for calculating the precoding information of the SRS, and uses a bitmap method to feedback the selection result. Then, the interaction process and signaling between the UE and the network side are as follows: Figure 8 As shown, the steps include the following.

[0221] Step 1: The network side sends RRC signaling to the UE to indicate the second configuration information: SRS-ResourceSet configuration information. The SRS-ResourceSet configuration includes the second downlink reference signal resource set CSI-RS resource set#0, and also includes the fourth information, bit information = 1, and the third information, namely the second effective time. .

[0222] Step 2: The UE receives the SRS-ResourceSet configuration information, measures all CSI-RS resources in the second downlink reference signal resource set CSI-RS resource set#0, and selects {CSI-RS#0, CSI-RS#1} as the first downlink reference signal resource set based on the measurement results. The UE determines that the first information is a bitmap of length K=4 bits with a value of 1100. The UE sends the first information 1100 to the network-side device on the PUCCH or PUSCH resource associated with the SRS-ResourceSet, indicating that the first two CSI-RS resources in CSI-RS resource set#0 are selected for calculating the precoding information of SRS.

[0223] Step 3: The network-side device receives the first information.

[0224] Step 4: The UE operates according to the second effective time. At least after the end boundary of the last symbol of the first message. After the time interval, an SRS signal is transmitted, the first precoding information or transmission power of the SRS signal being calculated based on the first downlink reference signal resource set {CSI-RS#0, CSI-RS#1}.

[0225] Step 5: The network-side device uses the port corresponding to the first downlink reference signal resource set {CSI-RS#0, CSI-RS#1} fed back in the first information to receive the SRS signal.

[0226] Step 6: The network-side device sends an SRS Resource Indicator (SRI) to the UE, and the UE sends PUSCH information based on the SRI.

[0227] In this embodiment, the UE determines TRPs that are not suitable for cooperative transmission or cooperative reception based on the measurement of the downlink CSI-RS resource set. For example, the transmission time of some TRPs exceeds the CP length, or the transmission performance is very poor due to obstruction. Based on channel reciprocity, the UE selects some TRPs with good synchronization accuracy and performance for uplink joint reception according to the downlink measurement, and indicates them to the network-side equipment through the first information to avoid beamforming gain loss due to mismatch of transmit and receive ports.

[0228] This application provides an embodiment that mainly describes the process by which a UE implicitly indicates first information through sequence coding information (such as precoding cycling).

[0229] Taking the SRS-ResourceSet indicated by the network-side device as an example, consider the configuration and transmission of periodic or semi-persistent SRS. Assume the network-side device configures the second downlink reference signal resource set associated with the SRS-ResourceSet as CSI-RS resource set#0, including {CSI-RS#0, CSI-RS#1, CSI-RS#2, CSI-RS#3}. The network-side device allows the UE to select some or all of the CSI-RS resources for calculating the precoding information of the SRS, and implicitly feeds back the selection result through the sequence information or code domain resources of the SRS. Then, the interaction process and signaling between the UE and the network-side device are as follows: Figure 9 As shown, the steps include the following.

[0230] Step 1: The network side sends RRC signaling to the UE to indicate the first configuration information: SRS-ResourceSet configuration information. The SRS-ResourceSet configuration includes the second downlink reference signal resource set CSI-RS resource set#0, and also includes the fourth information, which is bit information = 1, and also includes the association between N SRS sequence cyclic shift values ​​and different CSI-RS resource sets.

[0231] Taking N=4 as an example, a cyclic shift of 0 is associated with CSI-RS resource subset #0, which includes {CSI-RS#0, CSI-RS#1}; a cyclic shift of 1 is associated with CSI-RS resource subset #1, which includes {CSI-RS#0, CSI-RS#1, CSI-RS#2}; a cyclic shift of 2 is associated with CSI-RS resource subset #2, which includes {CSI-RS#2, CSI-RS#3}; and a cyclic shift of 3 is associated with CSI-RS resource subset #3, which includes {CSI-RS#3, CSI-RS#4}.

[0232] Step 2: The UE receives the SRS-ResourceSet configuration information, measures all CSI-RS resources in the second downlink reference signal resource set CSI-RS resource set#0, and selects {CSI-RS#0, CSI-RS#1} as the first downlink reference signal resource set based on the measurement results. This means that the first two CSI-RS resources in CSI-RS resource set#0 are selected to calculate the precoding information of SRS. Based on the correlation between the SRS sequence cyclic shift value and different CSI-RS resource subsets, the cyclic shift of the SRS sequence is determined to be 0.

[0233] Step 3: The UE transmits an SRS signal according to the cyclic shift of the SRS sequence. The first precoding information or transmission power of the SRS signal is calculated based on the first downlink reference signal resource set {CSI-RS#0, CSI-RS#1}.

[0234] Step 4: The network-side equipment blindly detects the SRS signal, determines the first downlink reference signal resource set {CSI-RS#0, CSI-RS#1} based on its sequence information, and processes or merges the received SRS signal using the corresponding receiving port.

[0235] Step 5: The network-side device sends an SRI to the UE, and the UE sends PUSCH information based on the SRI.

[0236] This embodiment does not require sending the first information separately on additional time resources. Instead, it implicitly indicates the TRP selection result by sending the sequence cyclic shift of SRS or code field resources, making the interaction process between the UE and the network side simpler.

[0237] This application provides an embodiment that mainly describes the process of UE recommending downlink reference signal selection results and network update configuration.

[0238] Taking the network-indicated SRS-ResourceSet as an example, consider the configuration and transmission of periodic or semi-persistent SRS. Assume the network-side device configures the second downlink reference signal resource set associated with the SRS-ResourceSet as CSI-RS resource set#0, including K=4 CSI-RS resources: {CSI-RS#0, CSI-RS#1, CSI-RS#2, CSI-RS#3}. The UE recommends some or all of these CSI-RS resources for calculating the precoding information of the SRS based on downlink measurements and feeds back the selection results using a bitmap method. The network-side device updates the configuration of the SRS-ResourceSet based on the UE's feedback. The interaction process and signaling between the UE and the network-side device are as follows: Figure 10 As shown, the steps include the following.

[0239] Step 1: The network side sends RRC signaling to the UE to indicate the second configuration information: SRS-ResourceSet configuration information, wherein the SRS-ResourceSet configuration includes the second downlink reference signal resource set CSI-RS resource set#0.

[0240] Step 2: The UE receives the SRS-ResourceSet configuration information, measures all CSI-RS resources in the second downlink reference signal resource set CSI-RS resource set#0, and selects {CSI-RS#0, CSI-RS#1} as the first downlink reference signal resource set based on the measurement results. The UE determines that the first information is a bitmap of length K=4 bits with a value of 1100. The UE sends the first information 1100 to the network-side device on the PUCCH or PUSCH resource associated with the SRS-ResourceSet, indicating that the first two CSI-RS resources in CSI-RS resource set#0 are recommended for calculating the precoding information of SRS.

[0241] Step 3: The network-side device receives the first information and sends the fifth information through RRC reconfiguration signaling, DCI signaling, or MACCE signaling to update the CSI-RS resource set configuration information associated with the SRS-ResourceSet.

[0242] For example, indicating a bitmap=1110 instructs the UE to use the first three CSI-RS resources in CSI-RS resource set#0 to calculate the precoding information of SRS. It is worth noting that the CSI-RS resource set information in the fifth information indicated by the network side here may be different from the CSI-RS resource set information recommended by the UE in the first information.

[0243] Step 4: The UE receives the fifth information and sends an SRS signal based on the fifth information. The precoding information or transmission power of the SRS signal is calculated based on the associated CSI-RS resource set configuration information indicated in the fifth information.

[0244] Step 5: The network-side device receives the SRS using the port corresponding to the CSI-RSresource set associated with the SRS-ResourceSet in the fifth information.

[0245] Step 6: The network-side device sends an SRI to the UE, and the UE sends PUSCH information based on the SRI.

[0246] In this embodiment, the network-side device adjusts the configuration of the CSI-RSresource Set associated with the SRS-ResourceSet based on the UE's recommendation, which helps to ensure uplink transmission performance.

[0247] This application provides an embodiment that mainly describes the transmission timeline relationship.

[0248] In one embodiment: the UE sends first information, and then the UE sends a first uplink reference signal, such as SRS, as follows: Figure 11 As shown, the steps include the following.

[0249] The UE receives the SRS-ResourceSet configuration sent by the network side, including the second configuration information, the fourth information (bit information), and the third information (including the second effective time).

[0250] The UE sends the first information through the PUXCH (i.e., PUCCH or PUSCH) associated with the SRS-ResourceSet.

[0251] The UE sends SRS after the second effective time following the transmission of the first message.

[0252] The UE receives the SRI indicated by the network side.

[0253] The UE sends PUSCH based on the precoded information indicated by the SRI.

[0254] In one embodiment: the UE sends an SRS, implicitly carrying the first information through sequence information, as follows: Figure 12 As shown, the steps include the following.

[0255] The UE receives the SRS-ResourceSet configuration sent by the network side, including the second configuration information, the fourth information (bit information), the cyclic shift information, and the association between the CSI-RS resource subset.

[0256] The UE sends an SRS, the sequence cyclic shift information of which is associated with a subset of CSI-RS resources selected by the UE.

[0257] The UE receives the SRI indicated by the network side.

[0258] The UE sends PUSCH based on the precoded information indicated by the SRI.

[0259] In one embodiment: the UE sends a first message requesting the network-side device to update the SRS-ResourceSet configuration, and after receiving the fifth message from the network-side device, sends an SRS, as follows. Figure 13 As shown, the steps include the following.

[0260] The UE receives the SRS-ResourceSet configuration sent by the network side, including the second configuration information, the fourth information (bit information), and the fourth time interval.

[0261] The UE sends the first information through the PUXCH (i.e., PUCCH or PUSCH) associated with the SRS-ResourceSet.

[0262] Within the fourth time interval after sending the first message, the UE receives the fifth message sent by the network side.

[0263] If the UE receives the fifth message within a fourth time interval after the first message, the UE sends the SRS according to the fifth message, wherein the UE determines the precoding information of the SRS according to the fifth message.

[0264] Alternatively, if the UE does not receive the fifth message within a fourth time interval after the first message, the UE sends an SRS according to the second configuration information, wherein the UE determines the precoding information of the SRS according to the second configuration information.

[0265] The UE receives the SRI indicated by the network side.

[0266] The UE sends PUSCH based on the precoded information indicated by the SRI.

[0267] Optionally, in various sub-implementations of this embodiment, the network-side device can configure the second information via SRS-ResourceSet to instruct the UE to determine the restriction information of the first downlink reference signal resource set. This application provides an embodiment that mainly describes how, in UL multi-stream transmission, the UE reports multiple downlink reference signal resource sets or TRP groups.

[0268] In some embodiments, the UE reports multiple downlink reference signal resource sets or TRP groups to the network side via first information for uplink multi-stream transmission or multi-panel-based transmission.

[0269] Furthermore, in this case, the first information may also include at least one of the following: 1) Receive indication information, which is used to indicate whether the network-side device should cooperate in receiving the first uplink reference signal associated with the plurality of downlink reference signal resource sets or TRP groups.

[0270] 2) Transport layer information, which is used to indicate at least one of the following associated with the downlink reference signal resource set or TRP group: transport layer index, maximum number of transport layers, rank, number of transport data streams, and transport data stream index.

[0271] The receiving indication information indicates whether the network-side devices cooperate in receiving the signal, which will affect the terminal's determination of the transmission power of the first uplink reference signal.

[0272] If the network-side equipment performs coherent joint reception, the first uplink reference signal is transmitted using a uniform transmit power and precoding information. This uniform transmit power and precoding information are determined based on measurements from multiple downlink reference signal resource sets (or downlink reference signal resource sets associated with a TRP group). For example, the transmit power of the first uplink reference signal is determined based on the minimum path loss among all downlink reference signal resource sets, and the precoding information of the first uplink reference signal is determined based on the joint channel of all downlink reference signal resource sets.

[0273] Alternatively, if the network-side equipment does not perform coordinated reception, it means that the UE transmits different first uplink reference signals based on multiple panels. In this case, the multiple first uplink reference signals are transmitted with different transmission powers. The transmission power and precoding information of any one of the first uplink reference signals are determined based on the measurement results of the downlink reference signal resource set (or the downlink reference signal resource set associated with the TRP group) associated with this first uplink reference signal. For example, the transmission power of the corresponding first uplink reference signal is determined based on the minimum path loss in this downlink reference signal resource set, and the precoding information of the corresponding first uplink reference signal is determined based on the channel of this downlink reference signal resource set.

[0274] Furthermore, the network-side device can also indicate the transport layer number or transport data stream index corresponding to each first uplink reference signal or the set of downlink reference signals associated with each first uplink reference signal.

[0275] For example, the network side configures an SRS-ResourceSet associated with three associated CSI-RS-ResourceSets, namely CSI-RS resource set #1, #2, and #3; the UE reports a recommended reception method of two-stream (2 layers) and non-cooperative reception. In the first information, the UE further reports that the first stream (layer 1) is associated with {CSI-RS resource set #1, CSI-RS resource set #2}, and the second stream (layer 2) is associated with CSI-RS resource set #3. This means that the UE determines the precoding information and transmission power of the first-stream SRS based on the channel measurement of all reference signal ports in {CSI-RS resource set #1, CSI-RS resource set #2}, and determines the precoding information and transmission power of the second-stream SRS based on the channel measurement of all reference signal ports in CSI-RS resource set #3, and then transmits the first-stream SRS and the second-stream SRS respectively. It can be understood that in the above example, the UE can also select some CSI-RS resources in the CSI-RS resource set for association.

[0276] The following section uses the example of the first uplink reference signal being SRS to further describe the mapping relationship between SRS resource set and SRS transport stream, as well as the indication method for multi-stream SRI.

[0277] Regarding the mapping relationship between SRS resource sets and SRS transport streams, the SRS of each stream in a multi-stream SRS transmission is transmitted in a code-division, frequency-division, or time-division manner. For example, in code-division multi-stream SRS transmission mode, the SRS of each transport stream is transmitted on the same time-frequency resource using different sequences, and the SRS is transmitted using the precodes of each transport stream. As another example, in frequency-division multi-stream SRS transmission mode, the SRS of each transport stream is transmitted on the same time resource (optionally the same sequence) using different comb offsets, and the SRS is transmitted using the precodes of each transport stream. As yet another example, in time-division multi-stream SRS transmission mode, the SRS of each transport stream is transmitted on different time resources (e.g., for N-stream SRS transmission, N consecutive SRS resources), and the SRS is transmitted using the precodes of each transport stream.

[0278] It is understandable that for code division and frequency division transmission methods, network-side devices reserve code domain resources or frequency domain resources when configuring SRS resource sets to cope with possible SRS multi-stream transmission; or, the network-side devices configure an upper limit N_up for the number of SRS multi-stream transmissions, and the number of code domain resources or frequency domain resources reserved when configuring SRS resource sets is determined according to N_up. The terminal obtains the upper limit N_up configured by the network-side devices, and the number of determined SRS transmission streams does not exceed N_up. For time division transmission methods, according to predefined rules, an SRS resource subset is determined from the SRS resource set to correspond to a group of SRS for SRS multi-stream transmission. It can be understood that the number of SRS resources in the SRS resource subset is equal to the number of streams in SRS multi-stream transmission.

[0279] Furthermore, the terminal reports multiple SRS transmission stream numbers and corresponding SRS resource occupancy, thereby determining that multiple SRS resource subsets correspond to different SRS transmission stream numbers. For example, the network-side device is configured with an SRS resource set containing 8 SRS resources; the terminal reports SRS transmission streams including single-stream transmission (corresponding to 4 SRS resources) and dual-stream transmission (corresponding to 4 SRS resources); the terminal sends SRS on the first 4 SRS resources, determining 4 precodes for single-stream SRS transmission according to the requirements of single-stream transmission, and sends SRS on the last 4 SRS resources, determining two sets of dual-stream SRS transmission precodes according to the requirements of dual-stream transmission, sending them on the 5th and 6th SRS resources and the 7th and 8th SRS resources respectively.

[0280] For SRI indication in multi-stream transmission, it can be indicated according to SRI groups, or multiple SRIs can be indicated according to the needs of multi-stream transmission (requiring expansion of the corresponding fields in the signaling). For example, it can indicate the ID of the SRS resource subset. For code division and frequency division SRS transmission modes, multi-stream SRS is associated with the time resource of the SRS resource, so the SRI group ID can be defined according to the time resource. For time division SRS transmission mode, it is defined according to the division result of the SRS resource subset, for example, numbered according to the transmission order based on the division result.

[0281] Where the above embodiments or implementation methods do not contradict each other, the above embodiments or implementation methods may be used in combination.

[0282] The above combination Figure 2 The information reporting method according to embodiments of this application is described in detail. The following will combine... Figure 14 A method for obtaining information according to another embodiment of this application is described in detail. It will be understood that the interaction between the network-side device and the terminal, as described from the perspective of the network-side device, is... Figure 2 The terminal-side descriptions in the methods shown are the same or corresponding; to avoid repetition, relevant descriptions are omitted as appropriate.

[0283] Figure 14 This is a schematic diagram illustrating the implementation flow of the acquisition method according to an embodiment of this application, which can be applied to network-side devices. For example... Figure 14 As shown, the method 1400 includes the following steps.

[0284] S1402: The network-side device obtains the first information reported by the terminal, the first information being used to indicate the first downlink reference signal resource set; the first downlink reference signal resource set being used to determine the transmission parameters of the first uplink reference signal, and the resources in the first downlink reference signal resource set belonging to the second downlink reference signal resource set.

[0285] In this embodiment, the network-side device obtains first information reported by the terminal. This first information indicates a first downlink reference signal resource set. The first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, ensuring that the transmission parameters calculated by the terminal match the actual situation, thereby improving beamforming gain and enhancing communication system performance. In this embodiment, the network-side device can adjust its reception parameters for the first uplink reference signal based on the first information reported by the terminal. These reception parameters, for example, specify which receiving ports to use to receive the first uplink reference signal. Here, the receiving port can refer to the network-side port corresponding to the first downlink reference signal resource set reported by the terminal. In other words, the network-side device uses the port that transmits the first downlink reference signal resource set to receive the first uplink reference signal sent by the terminal.

[0286] In some embodiments, determining the transmission parameters of the first uplink reference signal includes at least one of the following: 1) determining the precoding information of the first uplink reference signal; 2) determining the power control parameters of the first uplink reference signal; 3) determining the spatial relationship parameters of the first uplink reference signal; 4) determining the timing advance of the first uplink reference signal.

[0287] In some embodiments, before the network-side device obtains the first information reported by the terminal, the method further includes: the network-side device sending second information, the second information being used to instruct the terminal to determine limiting information of the first downlink reference signal resource set, the limiting information including at least one of the following: 1) information on the maximum time difference; 2) the maximum number of receive ports. N M ，N M It is a positive integer; 3) Maximum number of cooperative transmit / receive points (TRPs) K M ，K M is a positive integer.

[0288] In some embodiments, the method further includes: the network-side device sending fourth information, the fourth information being used to indicate whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set.

[0289] In some embodiments, after the network-side device obtains the first information reported by the terminal, the method further includes: the network-side device sending fifth information, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal.

[0290] In some embodiments, the method further includes: the network-side device receiving the first uplink reference signal, including at least one of the following: 1) when satisfying Earlier In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; 2) when the conditions are met... equal In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, it receives the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; 3) when satisfying Later In the case where the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; 4) when satisfying Earlier In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; 5) when the conditions are met... equal In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, it receives the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; 6) when satisfying Later In this case, the network-side device receives the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; wherein, The moment when the network-side device receives the first information; The receiving time of the first uplink reference signal received by the network-side device; The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal. The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information and the time when the network-side device receives the first information; The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

[0291] The information reporting or acquisition method provided in this application can be executed by an information reporting or acquisition device. This application uses an information reporting or acquisition device executing the information reporting or acquisition method as an example to illustrate the information reporting or acquisition device provided in this application.

[0292] This application provides an information reporting or acquisition device. As an example, the information reporting or acquisition device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0293] The information reporting or acquisition device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, etc., such as central processing units (CPUs), microprocessors, digital signal processors (DSPs), artificial intelligence (AI) processors, graphics processing units (GPUs), application-specific integrated circuits (ASICs), network processors (NPs), field-programmable gate arrays (FPGAs), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceivers, pins, circuits, buses, radio frequency units, etc.

[0294] For details, see Figure 15 When the information reporting device is a terminal or a component in a terminal, the information reporting device 1500 includes the following modules.

[0295] The first communication module 1502 is used to report first information, which is used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, and the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0296] In this embodiment of the application, the terminal can use the selected first downlink reference signal resource set to determine the transmission parameters, so that the transmission parameters calculated by the terminal match the actual situation, thereby improving beamforming gain and enhancing the performance of the communication system.

[0297] In some embodiments, determining the transmission parameters of the first uplink reference signal includes at least one of the following: 1) determining the precoding information of the first uplink reference signal; 2) determining the power control parameters of the first uplink reference signal; 3) determining the spatial relationship parameters of the first uplink reference signal; 4) determining the timing advance of the first uplink reference signal.

[0298] In some embodiments, resources in the second downlink reference signal resource set are associated with the first uplink reference signal.

[0299] In some embodiments, the first downlink reference signal resource set includes a first set, which includes: a portion of resources in one or more of the second downlink reference signal resource sets; or all resources in one or more of the second downlink reference signal resource sets.

[0300] In some embodiments, the first downlink reference signal resource set includes a plurality of first sets, the first set including: a portion of resources in one or more second downlink reference signal resource sets; or all resources in one or more second downlink reference signal resource sets.

[0301] In some embodiments, the first information further includes at least one of the following: 1) receiving indication information, which is used to indicate whether the network-side device cooperates to receive the first uplink reference signal associated with a plurality of first sets; wherein the first downlink reference signal resource set includes the plurality of first sets; 2) transport layer information, which is used to indicate at least one of the following associated with the first set: transport layer index, maximum number of transport layers, rank, number of transport data streams, and transport data stream index.

[0302] In some embodiments, the apparatus further includes a processing module for transmitting the first uplink reference signal based on first precoding information or second precoding information; wherein the first precoding information includes: precoding information calculated by measuring the first downlink reference signal resource set; the second precoding information includes: precoding information used to transmit the second uplink reference signal, wherein the transmission time of the second uplink reference signal is earlier than the transmission time of the first uplink reference signal.

[0303] In some embodiments, the first communication module 1502 is further configured to receive second information sent by the network-side device and determine the first information based on the second information.

[0304] In some embodiments, the second information is used to instruct the terminal to determine limiting information of the first downlink reference signal resource set, the limiting information including at least one of the following: 1) information on the maximum time difference; 2) the maximum number of receive ports. N M ，N M It is a positive integer; 3) Maximum number of cooperative transmit / receive points (TRPs) K M ，K M is a positive integer.

[0305] In some embodiments, the first communication module 1502 is configured to: 1) select downlink reference signals or downlink reference signals corresponding to TRPs whose reception times are within the maximum time difference, based on the information of the maximum time difference, to form the first downlink reference signal set, and determine the first information based on the first downlink reference signal set; 2) select... N M The downlink reference signal ports with the best channel conditions constitute the first downlink reference signal resource set, and the first information is determined based on the first downlink reference signal set; 3) Based on the maximum number of cooperative TRPs, select K M The downlink reference signal with the best reception performance constitutes the first downlink reference signal resource set, and the first information is determined based on the first downlink reference signal set.

[0306] In some embodiments, the apparatus further includes a processing module configured to determine, based on third information, precoding information used for transmitting the first uplink reference signal or the transmission timing of the first uplink reference signal; wherein the third information includes at least one of the following: 1) when the first effective time is reached. The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; 2) the first time interval. The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device receives the first information; 3) the second effective time. The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; 4) the second time interval, which is used to indicate the time requirement for sending the first uplink reference signal; 5) priority information, which is used to indicate the priority of the first uplink reference signal.

[0307] In some embodiments, the processing module is configured to: 1) satisfy at least one of the following: Earlier In the case where the terminal uses the second precoding information as the precoding information for transmitting the first uplink reference signal; 2) when the conditions are met... equal In the case where the terminal uses either the first precoding information or the second precoding information as the precoding information used to transmit the first uplink reference signal; 3) when the conditions are met... Later In the case where the terminal uses the first precoding information as the precoding information for transmitting the first uplink reference signal; 4) when the conditions are met... Earlier In the case where the terminal uses the second precoding information as the precoding information for transmitting the first uplink reference signal; 5) when the conditions are met... equal In the case where the terminal uses either the first precoding information or the second precoding information as the precoding information used to transmit the first uplink reference signal; 6) when the conditions are met... Night In this case, the terminal uses the first precoding information as the precoding information used to transmit the first uplink reference signal; wherein, The terminal reports the time when the first information was sent. The first precoding information includes: precoding information calculated from the measurement of the first downlink reference signal resource set; the second precoding information includes: precoding information used to transmit the second uplink reference signal, wherein the transmission time of the second uplink reference signal is earlier than the transmission time of the first uplink reference signal.

[0308] In some embodiments, the processing module is configured to transmit the first uplink reference signal after a fifth time interval following the transmission time of the first information, wherein the fifth time interval includes at least one of the following: 1) the second effective time, or the difference between the first effective time and the first time interval; 2) a first interval, wherein the first interval is the time interval between the transmission time of the first information and the transmission time of the first uplink reference signal; 3) a second interval, wherein the second interval is the time interval between the transmission time of the first information and the transmission time of the first uplink reference signal in the next cycle; 4) a third interval, wherein the third interval is the time interval between a first time after a preset time interval following the transmission time of the first information and the transmission time of the first uplink reference signal in the next cycle following the first time.

[0309] In some embodiments, the processing module is configured to: 1) when the first uplink reference signal overlaps with the first uplink signal, the terminal waits for a second time interval after the first uplink signal has finished transmitting before transmitting the first uplink reference signal; 2) when the first uplink reference signal overlaps with the first uplink signal, and the priority of the first uplink signal is lower than the priority of the first uplink reference signal, the terminal transmits the first uplink reference signal; 3) when a first uplink signal is transmitted during the time period of transmitting the first uplink reference signal, and the priority of the uplink signal is higher than the priority of the first uplink reference signal, the terminal transmits the first uplink reference signal after a second time interval after the first uplink signal has finished transmitting; 4) when the first uplink reference signal overlaps with the first uplink signal, the terminal transmits the first uplink reference signal or the first uplink signal based on the priority of the first uplink signal and the priority of the first uplink reference signal; wherein the first uplink signal is a signal other than the first uplink reference signal.

[0310] In some embodiments, the first communication module 1502 is further configured to receive fourth information sent by the network-side device, the fourth information being used to indicate whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set.

[0311] In some embodiments, the fourth information is indicated by a parameter field in the configuration of the first uplink reference signal; or, the fourth information is indicated by bit information associated with the configuration of the first uplink reference signal.

[0312] In some embodiments, the first communication module 1502 is further configured to receive fifth information sent by the network-side device, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal; and to send the first uplink reference signal based on the fifth information.

[0313] In some embodiments, the fifth information includes at least one of the following: 1) a third downlink reference signal resource set associated with the first uplink reference signal; 2) first resource indication information, which indicates the downlink reference signal resource or downlink reference signal resource set associated with the first uplink reference signal; 3) Transmission Configuration Indication (TCI) status information; 4) power control parameter indication information; 5) port set identification information; 6) first port indication information; 7) TRP group information or frequency domain resource information.

[0314] In some embodiments, the first communication module 1502 is configured to: if the fifth information is received within a fourth time interval after the first information is reported, then send the first uplink reference signal based on the fifth information; or, if the fifth information is received after a fourth time interval after the first information is reported, then retransmit the first uplink reference signal based on the fifth information; wherein, before receiving the fifth information, the first uplink reference signal has already been sent based on the second downlink reference signal resource set or the first downlink reference signal resource set.

[0315] In some embodiments, the first information includes at least one of the following: 1) second resource indication information, which is used to indicate the downlink reference signal resources included in the first downlink reference signal resource set, or to indicate the uplink resources corresponding to the first downlink reference signal resource set; 2) second port indication information, which is used to indicate the uplink receiving port corresponding to the first downlink reference signal resource set; 3) sequence coding information, which has an association relationship with the first downlink reference signal resource set.

[0316] In some embodiments, the second resource indication information includes at least one of the following: 1) a bitmap sequence indicating downlink reference signal resources selected by the terminal from the second downlink reference signal resource set; 2) a bitmap sequence indicating downlink reference signal resources not selected by the terminal from the second downlink reference signal resource set; 3) identification information of downlink reference signal resources in the first downlink reference signal resource set; 4) TRP or TRP group identification information associated with the first downlink reference signal resource set; 5) port or port group information associated with the first downlink reference signal resource set; 6) identification information of the downlink reference signal resource set, which is pre-indicated by the network-side device or predefined by the protocol; 7) predefined uplink resource identification information associated with the first downlink reference signal resource set.

[0317] In some embodiments, the sequence encoding information includes cyclic shift information of the first uplink reference signal; or, the sequence encoding information includes sequence encoding information of PUCCH or PUSCH, wherein the PUCCH or PUSCH is associated with the first uplink reference signal.

[0318] In some embodiments, the transmission resources of the first information are associated with the first uplink reference signal; or, the first information is indicated by the sequence encoding information of the first uplink reference signal.

[0319] In some embodiments, the first communication module 1502 is configured to transmit the first uplink reference signal based on the timing relationship between the transmission resources of the first information and the first uplink reference signal.

[0320] In some embodiments, the configuration of the first uplink reference signal is associated with the transmission resources of the first information; or, the transmission resources of the first information are associated with the configurations of multiple first uplink reference signals.

[0321] See Figure 16 When the information acquisition device is a network-side device or a component of a network-side device, the information acquisition device 1600 includes the following modules.

[0322] The second communication module 1602 is used to acquire first information reported by the terminal, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal, and the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0323] In this embodiment, the network-side device obtains first information reported by the terminal. This first information indicates a first downlink reference signal resource set. The first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, ensuring that the transmission parameters calculated by the terminal match the actual situation, thereby improving beamforming gain and enhancing communication system performance. In this embodiment, the network-side device can adjust its reception parameters for the first uplink reference signal based on the first information reported by the terminal. These reception parameters, for example, specify which receiving ports to use to receive the first uplink reference signal. Here, the receiving port can refer to the network-side port corresponding to the first downlink reference signal resource set reported by the terminal. In other words, the network-side device uses the port that transmits the first downlink reference signal resource set to receive the first uplink reference signal sent by the terminal.

[0324] In some embodiments, determining the transmission parameters of the first uplink reference signal includes at least one of the following: 1) determining the precoding information of the first uplink reference signal; 2) determining the power control parameters of the first uplink reference signal; 3) determining the spatial relationship parameters of the first uplink reference signal; 4) determining the timing advance of the first uplink reference signal.

[0325] In some embodiments, the second communication module 1602 is further configured to send second information, the second information being used to instruct the terminal to determine limiting information of the first downlink reference signal resource set, the limiting information including at least one of the following: 1) information on the maximum time difference; 2) the maximum number of receive ports. N M ，N M It is a positive integer; 3) Maximum number of cooperative transmit / receive points (TRPs) K M ，K M is a positive integer.

[0326] In some embodiments, the second communication module 1602 is further configured to send fourth information, the fourth information being configured to indicate whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set.

[0327] In some embodiments, the second communication module 1602 is further configured to send fifth information, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal.

[0328] In some embodiments, the second communication module 1602 is further configured to receive the first uplink reference signal, including at least one of the following: 1) when satisfying Earlier In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; 2) when the conditions are met... equal In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, it receives the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; 3) when satisfying Later In the case where the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; 4) when satisfying Earlier In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; 5) when the conditions are met... equal In the case where the network-side device receives the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, it receives the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; 6) when satisfying Later In this case, the network-side device receives the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; wherein, The moment when the network-side device receives the first information; The receiving time of the first uplink reference signal received by the network-side device; The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal. The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information and the time when the network-side device receives the first information; The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

[0329] The information reporting or acquisition device provided in this application embodiment can achieve... Figures 2 to 14 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0330] like Figure 17 As shown in the illustration, this application also provides a communication device 1700, including a processor 1701 and a memory 1702. The memory 1702 stores programs or instructions that can run on the processor 1701. For example, when the communication device 1700 is a terminal, the program or instructions executed by the processor 1701 implement the various steps of the above-described information reporting method embodiment and achieve the same technical effect. When the communication device 1700 is a network-side device, the program or instructions executed by the processor 1701 implement the various steps of the above-described information acquisition method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0331] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 2 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 15 The information reporting device shown. Specifically, Figure 18 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0332] The terminal 1800 includes, but is not limited to, at least some of the following components: radio frequency unit 1801, network module 1802, audio output unit 1803, input unit 1804, sensor 1805, display unit 1806, user input unit 1807, interface unit 1808, memory 1809, and processor 1810.

[0333] Those skilled in the art will understand that the terminal 1800 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1810 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 18 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0334] It should be understood that, in this embodiment, the input unit 1804 may include a graphics processor 18041 and a microphone 18042. The graphics processor 18041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1806 may include a display panel 18061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1807 includes at least one of a touch panel 18071 and other input devices 18072. The touch panel 18071 is also called a touch screen. The touch panel 18071 may include a touch detection device and a touch controller. Other input devices 18072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0335] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1801 can transmit it to the processor 1810 for processing; in addition, the radio frequency unit 1801 can send uplink data to the network-side device. Typically, the radio frequency unit 1801 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0336] The memory 1809 can be used to store software programs or instructions, as well as various data. The memory 1809 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1809 may include volatile memory or non-volatile memory. The non-volatile memory may 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. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1809 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0337] Processor 1810 may include one or more processing units; optionally, processor 1810 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1810.

[0338] The radio frequency unit 1801 is used to report first information, which is used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal, and the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0339] In this embodiment, the terminal can determine a first downlink reference signal resource set from a second downlink reference signal resource set. The first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal. The terminal reports first information to the network-side device, which indicates the first downlink reference signal resource set. In this embodiment, the terminal can use the selected first downlink reference signal resource set to determine the transmission parameters, making the transmission parameters calculated by the terminal match the actual situation, improving beamforming gain, and enhancing the performance of the communication system.

[0340] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the information reporting or acquisition method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0341] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 14 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0342] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 16 The information acquisition device shown. For example... Figure 19 As shown, the network-side device 1900 includes: an antenna 191, a radio frequency (RF) device 192, a baseband device 193, a processor 194, and a memory 195. The antenna 191 is connected to the RF device 192. In the uplink direction, the RF device 192 receives information through the antenna 191 and transmits the received information to the baseband device 193 for processing. In the downlink direction, the baseband device 193 processes the information to be transmitted and sends it to the RF device 192. The RF device 192 processes the received information and transmits it through the antenna 191.

[0343] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 193, which includes a baseband processor.

[0344] Baseband device 193 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 19 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 195 via a bus interface to call the program or instructions in the memory 195 to execute the network-side device operations shown in the above method embodiment.

[0345] The network-side device may also include a network interface 196, such as a Common Public Radio Interface (CPRI).

[0346] The radio frequency device 192 is used to acquire first information reported by the terminal, the first information being used to indicate a first downlink reference signal resource set; the first downlink reference signal resource set is used to determine the transmission parameters of a first uplink reference signal, and the resources in the first downlink reference signal resource set belong to a second downlink reference signal resource set.

[0347] Furthermore, the network-side device 1900 in this embodiment of the application also includes: a program or instructions stored in memory 195 and executable on processor 194, wherein processor 194 calls the program or instructions in memory 195 to execute. Figure 16 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0348] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described information reporting or acquisition method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0349] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0350] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-mentioned information reporting or acquisition method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0351] 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.

[0352] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described information reporting or acquisition method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0353] This application also provides an information reporting or acquisition system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the information reporting method described above, and the network-side device can be used to execute the steps of the information acquisition method described above.

[0354] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0355] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0356] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. An information reporting method, characterized in that, include: The terminal reports first information to the network-side device, the first information being used to indicate a first downlink reference signal resource set; The first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, and the resources in the first downlink reference signal resource set belong to the second downlink reference signal resource set.

2. The method according to claim 1, characterized in that, The transmission parameters for determining the first uplink reference signal include at least one of the following: Determine the precoding information of the first uplink reference signal; Determine the power control parameters of the first uplink reference signal; Determine the spatial relationship parameters of the first uplink reference signal; Determine the timing advance of the first uplink reference signal.

3. The method according to claim 1 or 2, characterized in that, The resources in the second downlink reference signal resource set are associated with the first uplink reference signal.

4. The method according to any one of claims 1 to 3, characterized in that, The first downlink reference signal resource set includes a first set, which includes: a portion of resources in one or more second downlink reference signal resource sets; or all resources in one or more second downlink reference signal resource sets.

5. The method according to any one of claims 1 to 3, characterized in that, The first downlink reference signal resource set includes multiple first sets, and the first set includes: a portion of resources in one or more second downlink reference signal resource sets; or all resources in one or more second downlink reference signal resource sets.

6. The method according to claim 4 or 5, characterized in that, The first information also includes at least one of the following: The system receives indication information, which is used to instruct network-side devices whether to collaboratively receive the first uplink reference signals associated with multiple first sets; wherein, the first downlink reference signal resource set includes the multiple first sets; Transport layer information, which is used to indicate at least one of the following associated with the first set: transport layer index, maximum number of transport layers, rank, number of transport data streams, and transport data stream index.

7. The method according to any one of claims 1 to 6, characterized in that, The method further includes: The terminal sends the first uplink reference signal based on the first precoding information or the second precoding information; The first precoding information includes: precoding information calculated from the measurement of the first downlink reference signal resource set; the second precoding information includes: precoding information used to transmit the second uplink reference signal, wherein the transmission time of the second uplink reference signal is earlier than the transmission time of the first uplink reference signal.

8. The method according to any one of claims 1 to 7, characterized in that, Before the terminal reports the first information to the network-side device, the method further includes: The terminal receives the second information sent by the network-side device. The terminal determines the first information based on the second information.

9. The method according to claim 8, characterized in that, The second information is used to instruct the terminal to determine the restriction information of the first downlink reference signal resource set, the restriction information including at least one of the following: Information on the maximum time difference; Maximum number of receive ports N M ，N M is a positive integer; Maximum number of cooperative transmit / receive points (TRPs) K M ，K M is a positive integer.

10. The method according to claim 9, characterized in that, The terminal determines, based on the second information, that the first information includes at least one of the following: Based on the information of the maximum time difference, the terminal selects downlink reference signals or downlink reference signals corresponding to TRPs that are received within the maximum time difference to form the first downlink reference signal set, and determines the first information based on the first downlink reference signal set; The terminal selects based on the maximum number of receiving ports. N M The downlink reference signal ports with the best channel conditions constitute the first downlink reference signal resource set, and the first information is determined based on the first downlink reference signal set; The terminal selects based on the maximum number of cooperative TRPs. K M The downlink reference signal with the best reception performance constitutes the first downlink reference signal resource set, and the first information is determined based on the first downlink reference signal set.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes: the terminal determining, based on third information, precoding information used to transmit the first uplink reference signal or the transmission timing of the first uplink reference signal; wherein the third information includes at least one of the following: First effective date The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal. First time interval The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information and the time when the network-side device receives the first information; Second effective date The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal. The second time interval is used to indicate the time requirement for transmitting the first uplink reference signal; Priority information, which is used to indicate the priority of the first uplink reference signal.

12. The method according to claim 11, characterized in that, Based on third information, the terminal determines that the precoding information used to transmit the first uplink reference signal includes at least one of the following: In satisfying Earlier In this case, the terminal uses the second precoding information as the precoding information used to transmit the first uplink reference signal; In satisfying equal In the case of the first precoding information or the second precoding information, the terminal will use the first precoding information or the second precoding information as the precoding information used to send the first uplink reference signal; In satisfying Later In this case, the terminal uses the first precoding information as the precoding information used to transmit the first uplink reference signal; In satisfying Earlier In this case, the terminal uses the second precoding information as the precoding information used to transmit the first uplink reference signal; In satisfying equal In the case of this, the terminal will use either the first precoding information or the second precoding information as the precoding information used to transmit the first uplink reference signal; In satisfying Night In this case, the terminal uses the first precoding information as the precoding information used to transmit the first uplink reference signal; in, The terminal reports the time when the first information was sent. The first precoding information includes: precoding information calculated from the measurement of the first downlink reference signal resource set; the second precoding information includes: precoding information used to transmit the second uplink reference signal, wherein the transmission time of the second uplink reference signal is earlier than the transmission time of the first uplink reference signal.

13. The method according to claim 11, characterized in that, The terminal determines the transmission timing of the first uplink reference signal based on the third information by: the terminal transmitting the first uplink reference signal after a fifth time interval following the transmission time of the first information, wherein the fifth time interval includes at least one of the following: The second effective time, or the difference between the first effective time and the first time interval; The first interval is the time interval between the transmission time of the first information and the transmission time of the first uplink reference signal; The second interval is the time interval between the transmission time of the first information and the transmission time of the first uplink reference signal in the next cycle. The third interval is the time interval between the first moment after a preset time interval following the transmission time of the first information and the transmission time of the first uplink reference signal in the next cycle after the first moment.

14. The method according to claim 11 or 13, characterized in that, Based on third information, the terminal determines the transmission timing of the first uplink reference signal to include one of the following: In the case where the first uplink reference signal overlaps with the first uplink signal, the terminal waits for a second time interval after the first uplink signal has finished being sent before sending the first uplink reference signal. When the first uplink reference signal overlaps with the first uplink signal, and the priority of the first uplink signal is lower than that of the first uplink reference signal, the terminal sends the first uplink reference signal. During the time period in which the first uplink reference signal is transmitted, a first uplink signal is transmitted, and the priority of the uplink signal is higher than that of the first uplink reference signal. After a second time interval following the end of the transmission of the first uplink signal, the terminal transmits the first uplink reference signal. When the first uplink reference signal and the first uplink signal overlap, the terminal transmits the first uplink reference signal or the first uplink signal based on the priority of the first uplink signal and the priority of the first uplink reference signal. The first uplink signal is a signal other than the first uplink reference signal.

15. The method according to any one of claims 1 to 14, characterized in that, Before the terminal reports the first information to the network-side device, the method further includes: The terminal receives a fourth message sent by the network-side device, the fourth message indicating whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set.

16. The method according to claim 15, characterized in that, The fourth information is indicated by a parameter field in the configuration of the first uplink reference signal; or, The fourth information is indicated by bit information, which is associated with the configuration of the first uplink reference signal.

17. The method according to any one of claims 1 to 16, characterized in that, After the terminal reports the first information to the network-side device, the method further includes: The terminal receives fifth information sent by the network-side device, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal; The terminal sends the first uplink reference signal based on the fifth information.

18. The method according to claim 17, characterized in that, The fifth piece of information includes at least one of the following: The third downlink reference signal resource set associated with the first uplink reference signal; First resource indication information, the first resource indication information is used to indicate the downlink reference signal resource or downlink reference signal resource set associated with the first uplink reference signal; Transmission configuration indicates TCI status information; Power control parameter indication information; Port set identification information; First port indication information; TRP group information or frequency domain resource information.

19. The method according to claim 17, characterized in that, The terminal sending the first uplink reference signal based on the fifth information includes: If the fifth information is received within a fourth time interval after the first information is reported, the terminal sends the first uplink reference signal based on the fifth information; or, If the fifth information is received after a fourth time interval following the reporting of the first information, the terminal retransmits the first uplink reference signal based on the fifth information; wherein, before receiving the fifth information, the terminal has already transmitted the first uplink reference signal based on the second downlink reference signal resource set or the first downlink reference signal resource set.

20. The method according to any one of claims 1 to 19, characterized in that, The first information includes at least one of the following: The second resource indication information is used to indicate the downlink reference signal resources included in the first downlink reference signal resource set, or to indicate the uplink resources corresponding to the first downlink reference signal resource set. The second port indication information is used to indicate the uplink receiving port corresponding to the first downlink reference signal resource set; Sequence encoding information, wherein the sequence encoding information is associated with the first downlink reference signal resource set.

21. The method according to claim 20, characterized in that, The second resource indication information includes at least one of the following: A bitmap sequence used to indicate the downlink reference signal resources selected by the terminal from the second downlink reference signal resource set; A bitmap sequence used to indicate that the terminal has not selected a downlink reference signal resource from the second downlink reference signal resource set; The identification information of downlink reference signal resources in the first downlink reference signal resource set; TRP or TRP group identification information, wherein the TRP or TRP group identification information is associated with the first downlink reference signal resource set; Port or port group information, which is associated with the first downlink reference signal resource set; The identification information of the downlink reference signal resource set, wherein the identification information of the downlink reference signal resource set is pre-indicated by the network-side device or predefined by the protocol; Predefined uplink resource identification information, which is associated with the first downlink reference signal resource set.

22. The method according to claim 20, characterized in that, The sequence encoding information includes the cyclic shift information of the first uplink reference signal; or, The sequence encoding information includes the sequence encoding information of PUCCH or PUSCH, which is associated with the first uplink reference signal.

23. The method according to any one of claims 1 to 22, characterized in that, The transmission resource for the first information is associated with the first uplink reference signal; or, The first information is indicated by the sequence encoding information of the first uplink reference signal.

24. The method according to any one of claims 1 to 23, characterized in that, The method further includes: The terminal transmits the first uplink reference signal based on the timing relationship between the transmission resources of the first information and the first uplink reference signal.

25. The method according to any one of claims 1 to 24, characterized in that, The configuration of the first uplink reference signal is associated with the transmission resources of the first information; or, The transmission resources of the first information are associated with the configuration of multiple first uplink reference signals.

26. An information acquisition method, characterized in that, include: The network-side device obtains the first information reported by the terminal, the first information being used to indicate the first downlink reference signal resource set; The first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, and the resources in the first downlink reference signal resource set belong to the second downlink reference signal resource set.

27. The method according to claim 26, characterized in that, The transmission parameters for determining the first uplink reference signal include at least one of the following: Determine the precoding information of the first uplink reference signal; Determine the power control parameters of the first uplink reference signal; Determine the spatial relationship parameters of the first uplink reference signal; Determine the timing advance of the first uplink reference signal.

28. The method according to claim 26 or 27, characterized in that, Before the network-side device obtains the first information reported by the terminal, the method further includes: The network-side device sends second information, which instructs the terminal to determine restriction information for the first downlink reference signal resource set, the restriction information including at least one of the following: Information on the maximum time difference; Maximum number of receive ports N M ，N M is a positive integer; Maximum number of cooperative transmit / receive points (TRPs) K M ，K M is a positive integer.

29. The method according to any one of claims 26 to 28, characterized in that, The method further includes: The network-side device sends a fourth message, which indicates whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set.

30. The method according to any one of claims 26 to 29, characterized in that, After the network-side device obtains the first information reported by the terminal, the method further includes: The network-side device sends a fifth message, which is used to indicate the first configuration information, and the first configuration information is used to update the configuration of the first uplink reference signal.

31. The method according to any one of claims 26 to 29, characterized in that, The method further includes: the network-side device receiving the first uplink reference signal, including at least one of the following: In satisfying Earlier In the case of receiving the second uplink reference signal, the network-side device uses the receiving port that receives the second uplink reference signal to receive the first uplink reference signal; In satisfying equal In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set. In satisfying Later In the case of the network-side device, the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; In satisfying Earlier In the case of receiving the second uplink reference signal, the network-side device uses the receiving port that receives the second uplink reference signal to receive the first uplink reference signal; In satisfying equal In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set. In satisfying Later In the case of the network-side device, the network-side device uses the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; in, The moment when the network-side device receives the first information; The receiving time of the first uplink reference signal received by the network-side device; The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal. The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information and the time when the network-side device receives the first information; The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

32. An information reporting device, characterized in that, include: A first communication module is used to report first information, the first information being used to indicate a first downlink reference signal resource set; The first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, and the resources in the first downlink reference signal resource set belong to the second downlink reference signal resource set.

33. The apparatus according to claim 32, characterized in that, Meet at least one of the following: The determination of the transmission parameters of the first uplink reference signal includes at least one of the following: determining the precoding information of the first uplink reference signal; determining the power control parameters of the first uplink reference signal; determining the spatial relationship parameters of the first uplink reference signal; Determine the timing advance of the first uplink reference signal; The first communication module is further configured to receive second information sent by the network-side device, determine the first information based on the second information, and the second information is used to indicate the restriction information for determining the first downlink reference signal resource set; The apparatus further includes a processing module for determining, based on third information, the precoding information used to transmit the first uplink reference signal or the transmission timing of the first uplink reference signal; wherein the third information includes at least one of the following: a first effective time. The first effective time is used to indicate the time interval between the following two: the time of sending the first information and the time of receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; the first time interval. The first time interval is used to indicate the time interval between the following two: the time of sending the first information and the time of receiving the first information by the network-side device; the second effective time. The second effective time is used to indicate the time interval between the following two: the time when the network-side device receives the first information, and the time when the network-side device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal; The second time interval is used to indicate the time requirement for transmitting the first uplink reference signal; the priority information is used to indicate the priority of the first uplink reference signal. The first communication module is further configured to receive fourth information sent by the network-side device, the fourth information being used to indicate whether it is permissible to select a portion of downlink reference signals from the second downlink reference signal resource set to constitute the first downlink reference signal resource set; The first communication module is further configured to receive fifth information sent by the network-side device, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal; and to send the first uplink reference signal based on the fifth information.

34. An information acquisition device, characterized in that, include: The second communication module is used to obtain first information reported by the terminal, the first information being used to indicate the first downlink reference signal resource set; The first downlink reference signal resource set is used to determine the transmission parameters of the first uplink reference signal, and the resources in the first downlink reference signal resource set belong to the second downlink reference signal resource set.

35. The apparatus according to claim 34, characterized in that, Meet at least one of the following: The determination of the transmission parameters of the first uplink reference signal includes at least one of the following: determining the precoding information of the first uplink reference signal; determining the power control parameters of the first uplink reference signal; determining the spatial relationship parameters of the first uplink reference signal; Determine the timing advance of the first uplink reference signal; The second communication module is further configured to send second information, the second information being used to instruct the terminal to determine limiting information of the first downlink reference signal resource set, the limiting information including at least one of the following: information on the maximum time difference; maximum number of receive ports. N M ，N M It is a positive integer; the maximum number of collaborative TRPs. K M ，K M is a positive integer; The second communication module is further configured to send fourth information, the fourth information being used to indicate whether the terminal is allowed to select a portion of downlink reference signals from the second downlink reference signal resource set to form the first downlink reference signal resource set; The second communication module is further configured to send fifth information, the fifth information being used to indicate first configuration information, the first configuration information being used to update the configuration of the first uplink reference signal; The second communication module is further configured to receive the first uplink reference signal, including at least one of the following: when satisfying Earlier In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal; under the condition of satisfying equal In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; under the condition of satisfying Later In the case of receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; and when the conditions are met... Earlier In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal; under the condition of satisfying equal In the case of receiving the first uplink reference signal using the receiving port that receives the second uplink reference signal; or, receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; under the condition of satisfying Later In the case of receiving the first uplink reference signal using the receiving port corresponding to the first downlink reference signal resource set; wherein, The receiving time of the first information; The receiving time for receiving the first uplink reference signal; The first effective time is used to indicate the time interval between the following two: the time when the terminal reports the first information, and the time when the device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal. The first time interval is used to indicate the time interval between the following two: the time when the terminal reports the first information and the time when it receives the first information; The second effective time is used to indicate the time interval between the following two: the reception time of receiving the first information, and the reception time when the device can use the receiving port corresponding to the first downlink reference signal resource set to receive the first uplink reference signal.

36. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method as described in any one of claims 1 to 25.

37. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method as described in any one of claims 26 to 31.

38. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as claimed in any one of claims 1 to 25, or the steps of the method as claimed in any one of claims 26 to 31.

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