Method and device in node used for reference signal transmission

Abstract

The invention discloses a method and a device in a node used for reference signal transmission. A first node receives a first reference signal and a second reference signal, the generation of the first reference signal depends on a first cell identifier, and the generation of the second reference signal depends on a second cell identifier; the first cell identifier is different from the second cell identifier; the first reference signal and the second reference signal are sent by the same antenna port, and the frequency domain resource occupied by the first reference signal and the frequency domain resource occupied by the second reference signal are at least partially overlapped. According to the method and the device, the problem that whether channels experienced by two reference signals in an RIS scene can be mutually deduced or not is solved, the channel estimation difficulty is reduced on the premise of ensuring the channel estimation accuracy, meanwhile, the calculation and communication burden of the terminal is reduced, and the design complexity and cost of the terminal are reduced.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to a method and apparatus for transmitting a reference signal in a wireless communication system supporting a cellular network. Background Art

[0002] In 2020, the 5.5G industry vision of 5G evolution was first proposed by the industry. In April 2021, 3GPP (3rd Generation Partner Project) officially named 5G evolution 5.5G as 5G-Advanced, started the standardization process, and planned to define 5G-Advanced technical specifications through three versions: Rel-18 (Release-18), Rel-19 and Rel-20. At the end of 2021, the first batch of 28 projects of Rel-18 were approved, and 5.5G technology research and standardization entered the substantive stage. The future Rel-19 and Rel-20 will further explore new 5G-Advanced services and architectures.

[0003] Reconfigurable Intelligent Surface (RIS) is an artificial electromagnetic surface structure with programmable electromagnetic properties, which contains a large number of independent low-cost passive subwavelength resonant units. Each RIS unit has independent electromagnetic wave control capabilities, and the response of each unit to wireless signals, such as phase, amplitude, polarization, etc., can be controlled by changing the parameters and spatial distribution of the RIS unit. By superimposing the wireless response signals of a large number of RIS units, specific beam propagation characteristics are formed on a macro scale, thereby forming a flexible and controllable shaped beam, achieving the effect of eliminating coverage blind spots, enhancing edge coverage, and increasing the rank of multi-stream transmission. RIS technology has the characteristics of low cost, low energy consumption, programmability, easy deployment, and high shaped gain with a larger antenna scale. It is regarded as a key technology for 5G-Advanced stage research and one of the core visions of 6G. Summary of the invention

[0004] The inventors have found through research that in scenarios using 5G-Advanced and the expected advanced technologies of 6G in the future, the transmission characteristics of wireless channels will have new features. In more diverse wireless environments and application scenarios, how to determine whether the channels experienced by the symbols of two signals can be inferred from each other, and how to use the above-mentioned inferred relationship to improve system performance will be a key issue.

[0005] In view of the above problems, the present application discloses a solution. It should be noted that, in the description of the above problems, the NR (New Radio) system is used as an example, and the present application is also applicable to scenarios such as the future 6G system, and obtains technical effects similar to the NR system; further, although the original intention of the present application is for RIS scenarios, the present application can also be applied to other non-RIS scenarios; further, the use of a unified design scheme for different scenarios (such as other non-RIS scenarios, including but not limited to capacity enhancement systems, short-range communication systems, unlicensed spectrum communications, IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, Internet of Vehicles, etc.) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0006] In particular, the interpretation of the terminology, nouns, functions, and variables in this application (if not otherwise specified) can refer to the definitions in the 3GPP specification protocols TS38 series and TS37 series. If necessary, reference can be made to 3GPP standards TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, TS38.423 to assist in understanding this application.

[0007] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0008] As an example, the interpretation of the terms in the present application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0009] The present application discloses a method in a first node used for reference signal transmission, which includes:

[0010] receiving a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; and the first cell identifier and the second cell identifier are different;

[0011] The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

[0012] As an embodiment, the problem to be solved by the present application includes: in a RIS scenario, how the first node receives the first reference signal and the second reference signal.

[0013] As an embodiment, the problem to be solved by the present application includes: when reference signals identified by two different cell identifiers occupy partially overlapping frequency domain resources, how the first node receives the two reference signals.

[0014] As an embodiment, the characteristics of the above method include: in the present application, the first node is assumed to be identified by two different cell identifiers, and two reference signals occupying at least partially overlapping frequency domain resources are sent by the same antenna port, thereby solving the above problem.

[0015] As an embodiment, the characteristics of the above method include: whether the transmission path of the signal in the RIS scenario includes RIS is transparent to the first node.

[0016] As an embodiment, the characteristics of the above method include: the first node can perform joint channel estimation based on the first reference signal and the second reference signal.

[0017] As an embodiment, the characteristics of the above method include: the first node can perform cascade channel estimation based on the incident signal and the reflected signal of the RIS.

[0018] As an embodiment, the characteristics of the above method include: antenna ports with the same antenna port index are the same antenna port.

[0019] As an embodiment, the characteristics of the above method include: antenna ports with the same antenna port identifier are the same antenna port.

[0020] As an embodiment, the characteristics of the above method include: the same antenna port is respectively located in the base station and the RIS device.

[0021] As an embodiment, the characteristics of the above method include: the same antenna ports are uniformly identified by the base station.

[0022] As an embodiment, the characteristics of the above method include: the same antenna ports are uniformly indexed by the base station.

[0023] As an embodiment, the characteristics of the above method include: the same antenna port corresponds to the antenna port used by the reference signal directly sent by the base station and the antenna port used by the reflected reference signal of the RIS.

[0024] As an embodiment, the benefits of the above method include: the present application supports RIS technology, and has the advantages of eliminating coverage blind spots, enhancing edge coverage, and increasing the rank of multi-stream transmission.

[0025] As an embodiment, the benefits of the above method include: supporting static or semi-static RIS configuration technology, reducing system cost and design complexity, reducing energy consumption and improving system performance.

[0026] As an embodiment, the benefits of the above method include: adapting to more complex channel environments and application scenarios, and improving the reliability and robustness of transmission.

[0027] As an embodiment, the benefits of the above method include: RIS channel transparency can enable the terminal to adapt to different RIS deployments, thereby improving the flexibility and scalability of the network.

[0028] As an embodiment, the benefits of the above method include: good forward compatibility and backward compatibility.

[0029] As an example, the English meaning of the logo in this application is Identity.

[0030] As an example, the English meaning of the identifier in this application is Id.

[0031] As an example, the English meaning of the identifier in this application is Index.

[0032] According to one aspect of the present application, the above method is characterized in that the first reference signal and the second reference signal are associated with the same identifier.

[0033] As an embodiment, the characteristics of the above method include: the first reference signal occupies a first reference signal resource, the second reference signal occupies a second reference signal resource, and the first reference signal resource and the second reference signal resource correspond to the same resource identifier.

[0034] As an embodiment, the characteristics of the above method include: the first reference signal and the second reference signal are associated with the same TCI state identifier.

[0035] As an embodiment, the benefits of the above method include: being conducive to the base station to perform unified resource management and improving resource utilization.

[0036] As an embodiment, the benefits of the above method include: simplifying system design and reducing terminal costs.

[0037] As an embodiment, the benefits of the above method include: reducing interference between signals.

[0038] According to one aspect of the present application, the above method is characterized in that the first reference signal and the second reference signal are sent by the same antenna port, which means that for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal.

[0039] As an embodiment, the characteristics of the above method include: the first antenna port is an antenna port of the first reference signal, the second antenna port is an antenna port of the second reference signal, and the channel for transmitting symbols on the first antenna port can be inferred from the channel for transmitting symbols on the second antenna port.

[0040] As an embodiment, the characteristics of the above method include: the first antenna port is an antenna port of the first reference signal, the second antenna port is an antenna port of the second reference signal, and the channel experienced by the symbols on the second antenna port can be inferred from the channel experienced by the symbols transmitted on the first antenna port.

[0041] As an embodiment, the characteristics of the above method include: the configuration of RIS is relatively fixed and does not need to frequently adapt to changes in small-scale characteristics.

[0042] As an embodiment, the benefits of the above method include: reducing the computing and communication burden of the terminal, and reducing the complexity and cost of terminal design.

[0043] As an embodiment, the benefits of the above method include: reducing the difficulty of channel estimation while ensuring the accuracy of channel estimation.

[0044] According to one aspect of the present application, the above method is characterized in that when one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port; the candidate cell identifier set is configured to a first type of device, and the first type of device is a device other than a base station.

[0045] As an embodiment, the characteristics of the above method include: the first type of equipment includes RIS.

[0046] As an embodiment, the characteristics of the above method include: any cell in the candidate cell identifier set is used to identify a cell, and the cell is associated with the first type of device.

[0047] As an embodiment, the characteristics of the above method include: the candidate cell identity set implicitly indicates whether RIS is deployed in the communication system.

[0048] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel estimation.

[0049] As an embodiment, the benefits of the above method include: being adaptable to various different environments.

[0050] According to one aspect of the present application, the above method is characterized in that the first reference signal and the second reference signal are sent by the same antenna port only when the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier.

[0051] As an embodiment, the characteristics of the above method include: the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier to implicitly indicate whether RIS is deployed in the communication system.

[0052] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel estimation.

[0053] As an embodiment, the benefits of the above method include: being adaptable to various different environments.

[0054] According to one aspect of the present application, the above method is characterized in that the first type of device is used to reflect the wireless signal from the base station.

[0055] As an embodiment, the characteristics of the above method include: the reflection refers to forwarding.

[0056] As an embodiment, the characteristics of the above method include: the reflection refers to layer 1 forwarding.

[0057] As an embodiment, the characteristics of the above method include: the reflection means that the reflected wireless signal has not been demodulated.

[0058] As an embodiment, the characteristics of the above method include: the reflection refers to transparent transmission.

[0059] As an embodiment, the benefits of the above method include: being conducive to the base station to perform unified resource management and improving resource utilization.

[0060] As an embodiment, the benefits of the above method include: good forward compatibility.

[0061] According to one aspect of the present application, the above method is characterized in that a sender of the first reference signal and a sender of the second reference signal are different.

[0062] As an embodiment, the characteristics of the above method include: one of the senders of the first reference signal and the second reference signal is a base station.

[0063] As an embodiment, the characteristics of the above method include: generation of the pseudo-random sequences of the first reference signal and the second reference signal depends on the same sender.

[0064] As an embodiment, the benefits of the above method include: improving the flexibility and scalability of the network.

[0065] As an embodiment, the benefits of the above method include: good forward compatibility.

[0066] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0067] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0068] The present application discloses a method in a second node used for reference signal transmission, which includes:

[0069] Sending at least the first reference signal of a first reference signal and a second reference signal, where generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different;

[0070] The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

[0071] According to one aspect of the present application, the above method is characterized in that the second node only sends the first reference signal, and the third node in the present application sends the second reference signal.

[0072] According to one aspect of the present application, the above method is characterized in that the second node sends the first reference signal and the second reference signal, and the second reference signal received by the first node is reflected by the third node in the present application.

[0073] According to one aspect of the present application, the above method is characterized in that the first reference signal and the second reference signal are associated with the same identifier.

[0074] According to one aspect of the present application, the above method is characterized in that the first reference signal and the second reference signal are sent by the same antenna port, which means that for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal.

[0075] According to one aspect of the present application, the above method is characterized in that when one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port; the candidate cell identifier set is configured to a first type of device, and the first type of device is a device other than a base station.

[0076] As an embodiment, the characteristics of the above method include: the second node includes the first type of device.

[0077] As an embodiment, the characteristics of the above method include: the third node described in the present application includes the first type of device.

[0078] As an embodiment, the characteristics of the above method include: the candidate cell identifier set is configured by the second node to the first type of device.

[0079] As an embodiment, the benefits of the above method include: the base station can uniformly manage the coverage of the RIS based on the cells in the candidate cell identifier set.

[0080] As an embodiment, the benefits of the above method include: facilitating the unified utilization and allocation of resources.

[0081] As an embodiment, the benefits of the above method include: the joint deployment between the base station and the first type of equipment can more stably change the propagation characteristics of the signal and provide more reliable signal transmission and coverage.

[0082] According to one aspect of the present application, the above method is characterized in that the first reference signal and the second reference signal are sent by the same antenna port only when the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier.

[0083] According to one aspect of the present application, the above method is characterized in that the first type of device is used to reflect the wireless signal from the base station.

[0084] According to one aspect of the present application, the above method is characterized in that a sender of the first reference signal and a sender of the second reference signal are different.

[0085] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0086] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0087] According to one aspect of the present application, the above method is characterized in that the second node is a serving cell.

[0088] According to one aspect of the present application, the above method is characterized in that the second node is a serving cell of the first node.

[0089] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0090] The present application discloses a first node device used for reference signal transmission, comprising:

[0091] A first receiver receives a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different;

[0092] The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

[0093] The present application discloses a second node device used for reference signal transmission, comprising:

[0094] A first transmitter is configured to send at least the first reference signal of a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different;

[0095] The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

[0096] According to one aspect of the present application, the above-mentioned device is characterized in that the first transmitter of the second node only sends the first reference signal, and the third node in the present application sends the second reference signal.

[0097] According to one aspect of the present application, the above-mentioned device is characterized in that the first transmitter of the second node sends the first reference signal and the second reference signal, and the second reference signal received by the first node is reflected by the third node in the present application.

[0098] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0099] Support RIS technology, which has the advantages of eliminating coverage blind spots, enhancing edge coverage and increasing the rank of multi-stream transmission;

[0100] Under the premise of ensuring the accuracy of channel estimation, reduce the difficulty of channel estimation;

[0101] Reduces the computing and communication burden of the terminal, and reduces the complexity and cost of terminal design;

[0102] This is beneficial for base stations to carry out unified resource management and improve resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0104] Figure 1 A flowchart showing first node transmission according to an embodiment of the present application is shown;

[0105] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0106] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0107] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0108] Figure 5 A flow chart showing transmission between a first node and a second node according to an embodiment of the present application is shown;

[0109] Figure 6 A schematic diagram showing a relationship between a first reference signal and a second reference signal according to an embodiment of the present application;

[0110] Figure 7 A schematic diagram showing a relationship between a channel for transmitting a first reference signal and a channel for transmitting a second reference signal according to an embodiment of the present application;

[0111] Figure 8 A schematic diagram showing a situation where a first reference signal and a second reference signal are sent by the same antenna port according to an embodiment of the present application;

[0112] Fig. 9A schematic diagram showing another situation in which the first reference signal and the second reference signal are sent by the same antenna port according to an embodiment of the present application;

[0113] Fig.10 A schematic diagram showing a situation of a first type of device according to an embodiment of the present application;

[0114] Fig.11 A schematic diagram showing a situation of a sender of a first reference signal and a sender of a second reference signal according to an embodiment of the present application;

[0115] Fig.12 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0116] Fig.13 A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0117] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0118] Example 1

[0119] Embodiment 1 illustrates a flowchart of the first node transmission according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the example, each box represents a step. In particular, the order of the steps in the box does not represent a specific time sequence between the steps.

[0120] In step 101, the first node receives a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different.

[0121] In embodiment 1, the first reference signal and the second reference signal are sent by the same antenna port, and the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal at least partially overlap.

[0122] As an embodiment, the first node is the first node in the present application.

[0123] As an embodiment, the first node receives the first reference signal.

[0124] As an embodiment, the first reference signal includes a synchronization signal in a system after at least a 5G system.

[0125] As an embodiment, the first reference signal includes at least a synchronization signal in a 6G system.

[0126] As an embodiment, the first reference signal is a downlink reference signal (Reference Signal, RS).

[0127] As an embodiment, the first reference signal is a CSI-RS (Channel State Information-Reference Signal).

[0128] As an embodiment, the first reference signal is SSB.

[0129] As an embodiment, the first reference signal is a PRS (Positioning Reference Signal, positioning reference signal).

[0130] As an embodiment, the first reference signal corresponds to a CSI-RS identifier.

[0131] As an embodiment, the first reference signal corresponds to a CSI-RS identity.

[0132] As an embodiment, the first reference signal corresponds to a CSI-RS resource.

[0133] As an embodiment, the first reference signal corresponds to an NZP (Non Zero Power) CSI-RS resource.

[0134] As an embodiment, the first reference signal corresponds to a CSI-RS resource identifier.

[0135] As an embodiment, the first reference signal corresponds to a CSI-RS resource identity.

[0136] As an embodiment, the first reference signal corresponds to an NZP-CSI-RS-ResourceId.

[0137] As an embodiment, the first reference signal corresponds to an NR-DL-PRS-ResourceID.

[0138] As an embodiment, the first reference signal corresponds to an SSB-Index.

[0139] As an embodiment, the first reference signal corresponds to an ssb-Index.

[0140] As an embodiment, the first reference signal corresponds to a TCI (Transmission Configuration Indicator).

[0141] As an embodiment, the first reference signal corresponds to a TCI state (State).

[0142] As an embodiment, the first reference signal corresponds to a TCI-StateId.

[0143] As an embodiment, the first reference signal is transmitted in a first reference signal resource, and the first reference signal resource includes a CSI-RS resource.

[0144] As a sub-embodiment of this embodiment, the first reference signal resource is an NZP CSI-RS resource.

[0145] As a sub-embodiment of this embodiment, the first reference signal resource is periodic.

[0146] As a sub-embodiment of this embodiment, the first reference signal resource is semi-persistent.

[0147] As a sub-embodiment of this embodiment, the first reference signal resource is aperiodic.

[0148] As a sub-embodiment of this embodiment, the first reference signal resource is identified by an NZP-CSI-RS-ResourceId.

[0149] As a sub-embodiment of this embodiment, the identifier of the first reference signal resource is NZP-CSI-RS-ResourceId.

[0150] As a sub-embodiment of this embodiment, the corresponding identifier of the first reference signal is an identifier of the first reference signal resource.

[0151] As a sub-embodiment of this embodiment, the first reference signal is transmitted according to configuration information of the first reference signal resource.

[0152] As a sub-embodiment of this embodiment, the first reference signal is transmitted in one occurrence of the first reference signal resource in the time domain.

[0153] As a sub-embodiment of this embodiment, the first reference signal is a reference signal transmission based on configuration information of the first reference signal resource.

[0154] As a subsidiary embodiment of this sub-embodiment, the configuration information of the first reference signal resource includes time domain resources, frequency domain resources, CDM (Code Division Multiplexing) type, CDM group, RS sequence, scrambling code, period, time slot offset, QCL relationship, TCI state, density, or part or all of the number of CSI-RS ports.

[0155] As a sub-embodiment of this embodiment, the first reference signal resource corresponds to a reference resource set.

[0156] As a sub-embodiment of this embodiment, the first reference signal resource corresponds to a CSI-RS set.

[0157] As a sub-embodiment of this embodiment, the first reference signal resource corresponds to a reference resource set identifier.

[0158] As a sub-embodiment of this embodiment, the first reference signal resource corresponds to an NZP-CSI-RS-ResourceSetId.

[0159] As a sub-embodiment of this embodiment, the corresponding identifier of the first reference signal is an identifier of a reference signal resource set corresponding to the first reference signal resource.

[0160] As an embodiment, the first node receives the second reference signal.

[0161] As an embodiment, the second reference signal includes a synchronization signal in a system after at least a 5G system.

[0162] As an embodiment, the second reference signal includes at least a synchronization signal in a 6G system.

[0163] As an embodiment, the first reference signal is a downlink RS.

[0164] As an embodiment, the second reference signal is a CSI-RS.

[0165] As an embodiment, the second reference signal is SSB.

[0166] As an embodiment, the second reference signal is a PRS.

[0167] As an embodiment, the second reference signal corresponds to a CSI-RS identifier.

[0168] As an embodiment, the second reference signal corresponds to a CSI-RS identity.

[0169] As an embodiment, the second reference signal corresponds to a CSI-RS resource.

[0170] As an embodiment, the second reference signal corresponds to an NZP CSI-RS resource.

[0171] As an embodiment, the second reference signal corresponds to a CSI-RS resource identifier.

[0172] As an embodiment, the second reference signal corresponds to a CSI-RS resource identity.

[0173] As an embodiment, the second reference signal corresponds to an NZP-CSI-RS-ResourceId.

[0174] As an embodiment, the second reference signal corresponds to an NR-DL-PRS-ResourceID.

[0175] As an embodiment, the second reference signal corresponds to an SSB-Index.

[0176] As an embodiment, the first reference signal corresponds to an ssb-Index.

[0177] As an embodiment, the second reference signal corresponds to a TCI.

[0178] As an embodiment, the second reference signal corresponds to a TCI State.

[0179] As an embodiment, the second reference signal corresponds to a TCI-StateId.

[0180] As an embodiment, the second reference signal is transmitted in a second reference signal resource, and the second reference signal resource includes a CSI-RS resource.

[0181] As a sub-embodiment of this embodiment, the second reference signal resource is an NZP CSI-RS resource.

[0182] As a sub-embodiment of this embodiment, the second reference signal resource is periodic.

[0183] As a sub-embodiment of this embodiment, the second reference signal resource is quasi-static.

[0184] As a sub-embodiment of this embodiment, the second reference signal resource is non-periodic.

[0185] As a sub-embodiment of this embodiment, the second reference signal resource is identified by an NZP-CSI-RS-ResourceId.

[0186] As a sub-embodiment of this embodiment, the identifier of the second reference signal resource is NZP-CSI-RS-ResourceId.

[0187] As a sub-embodiment of this embodiment, the corresponding identifier of the second reference signal is an identifier of the second reference signal resource.

[0188] As a sub-embodiment of this embodiment, the second reference signal is transmitted according to configuration information of the second reference signal resource.

[0189] As a sub-embodiment of this embodiment, the second reference signal is transmitted in one occurrence of the second reference signal resource in the time domain.

[0190] As a sub-embodiment of this embodiment, the second reference signal is a reference signal transmission based on configuration information of the second reference signal resource.

[0191] As a subsidiary embodiment of this sub-embodiment, the configuration information of the second reference signal resource includes part or all of time domain resources, frequency domain resources, CDM type, CDM group, RS sequence, scrambling code, period, time slot offset, QCL relationship, TCI state, density, or number of CSI-RS ports.

[0192] As a sub-embodiment of this embodiment, the second reference signal resource corresponds to a reference resource set.

[0193] As a sub-embodiment of this embodiment, the second reference signal resource corresponds to a CSI-RS set.

[0194] As a sub-embodiment of this embodiment, the second reference signal resource corresponds to a reference resource set identifier.

[0195] As a sub-embodiment of this embodiment, the second reference signal resource corresponds to an NZP-CSI-RS-ResourceSetId.

[0196] As a sub-embodiment of this embodiment, the corresponding identifier of the second reference signal is an identifier of a reference signal resource set corresponding to the second reference signal resource.

[0197] As an embodiment, the reference signal described in the present application includes a CSI-RS port.

[0198] As an embodiment, the reference signal described in the present application includes an antenna port.

[0199] As an embodiment, the reference signal described in the present application includes a reference signal port.

[0200] As an embodiment, the first reference signal includes at least one reference signal port.

[0201] As an embodiment, the second reference signal includes at least one reference signal port.

[0202] As an embodiment, the first reference signal and the second reference signal are both synchronization signals in a system after the 5G system.

[0203] As an embodiment, the first reference signal and the second reference signal are both synchronization signals in a 6G system.

[0204] As an embodiment, the first reference signal and the second reference signal are the same type of downlink RS.

[0205] As an embodiment, the first reference signal and the second reference signal are both CSI-RS.

[0206] As an embodiment, the first reference signal and the second reference signal are both PRS.

[0207] As an embodiment, the first reference signal and the second reference signal are both SSB.

[0208] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0209] As an embodiment, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast CHannel) block, synchronization signal / physical broadcast channel block.

[0210] Typically, the reception occasions of PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are in consecutive symbols and form an SS / PBCH block.

[0211] As an embodiment, the identifier of the one reference signal is used to determine the one reference signal.

[0212] As an embodiment, the identifier of the reference signal is used to determine the reference signal resource corresponding to the reference signal.

[0213] As an embodiment, the identifier of the reference signal is used to determine the reference signal resource set corresponding to the reference signal.

[0214] As an embodiment, the identifier of the one reference signal is used to determine the quasi co-location relationship of the one reference signal.

[0215] As an embodiment, the identifier of the one reference signal is used to determine the TCIstate of the one reference signal.

[0216] As an embodiment, the first cell identifier is a non-negative integer.

[0217] As an embodiment, the first cell identifier is ServCellIndex.

[0218] As an embodiment, the first cell identifier is SCellIndex.

[0219] As an embodiment, the first cell identifier is AdditionalPCIIndex.

[0220] As an embodiment, the first cell identifier is PCI.

[0221] As an embodiment, the PCI mentioned in this application refers to: Physical Cell Identifier, physical cell identifier.

[0222] As an embodiment, the PCI mentioned in this application refers to: Physical Cell Identity, physical cell identity.

[0223] As an embodiment, the PCI mentioned in this application refers to: Physical-layer Cell Identity, physical layer cell identity.

[0224] As an embodiment, the PCI described in this application refers to: physCellId.

[0225] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: initialization of a generator of a scrambling sequence of a physical channel occupied by signaling configuring the first reference signal being dependent on the first cell identifier.

[0226] As a sub-embodiment of this embodiment, the signaling for configuring the first reference signal is RRC (Radio Resource Control layer) signaling.

[0227] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for configuring the first reference signal includes PDSCH (Physical Downlink Shared CHannel, physical downlink shared channel).

[0228] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: initialization of a generator of a scrambling sequence of a physical channel occupied by signaling for activating the first reference signal being dependent on the first cell identifier.

[0229] As a sub-embodiment of this embodiment, the signaling for activating the first reference signal is dynamic signaling.

[0230] As a sub-embodiment of this embodiment, the signaling for activating the first reference signal includes MAC (Medium Access Control) layer signaling.

[0231] As a sub-embodiment of this embodiment, the signaling for activating the first reference signal is MAC CE (Control Element, control unit).

[0232] As a sub-embodiment of this embodiment, the signaling for activating the first reference signal includes DCI (Downlink Control Information, downlink control information).

[0233] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for activating the first reference signal includes PDSCH.

[0234] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for activating the first reference signal includes PDCCH (Physical Downlink Control CHannel, physical downlink control channel).

[0235] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: an interleaver of a physical channel occupied by signaling for activating the first reference signal being dependent on the first cell identifier.

[0236] As a sub-embodiment of this embodiment, the signaling for activating the first reference signal is DCI.

[0237] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for activating the first reference signal includes PDCCH.

[0238] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: scrambling the first reference signal by the first cell identifier.

[0239] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: initialization of the scrambling sequence of the first reference signal being dependent on the first cell identifier.

[0240] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: the generation of the RS sequence of the first reference signal being dependent on the first cell identifier.

[0241] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: initialization of a generator for generating a pseudo-random sequence for the first reference signal being dependent on the first cell identifier.

[0242] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: without configuring a candidate identifier, initialization of a generator for generating a pseudo-random sequence for the first reference signal being dependent on the first cell identifier.

[0243] As a sub-embodiment of this embodiment, the configuration is completed through RRC signaling.

[0244] As a sub-embodiment of this embodiment, the candidate identifier is equal to scramblingID.

[0245] As a sub-embodiment of this embodiment, the candidate identifier is equal to sequenceGenerationConfig.

[0246] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes scrambling.

[0247] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes sequence.

[0248] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes an ID.

[0249] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes Generation.

[0250] As an embodiment, the generation of the first reference signal being dependent on the first cell identifier includes: a spatial characteristic of a first candidate reference signal is used to determine the spatial characteristic of the first reference signal, and the generation of the first candidate reference signal being dependent on the first cell identifier.

[0251] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: the first candidate reference signal and the first reference signal are QCL.

[0252] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: a spatial filter of the first candidate reference signal is used to determine the spatial filter of the first reference signal.

[0253] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: a spatial filter of the first candidate reference signal is the same as a spatial filter of the first reference signal.

[0254] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: a spatial reception parameter of the first candidate reference signal is used to determine a spatial reception parameter of the first reference signal.

[0255] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: a spatial reception parameter of the first candidate reference signal is the same as a spatial reception parameter of the first reference signal.

[0256] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: spatial domain filtering of the first candidate reference signal is used to determine spatial domain filtering of the first reference signal.

[0257] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: spatial domain filtering of the first candidate reference signal is the same as spatial domain filtering of the first reference signal.

[0258] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: spatial filtering of the first candidate reference signal is used to determine spatial filtering of the first reference signal.

[0259] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: the spatial filtering of the first candidate reference signal is the same as the spatial filtering of the first reference signal.

[0260] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: a downlink receive spatial filter (DLRXSpatial Filter) of the first candidate reference signal is the same as a DL RX SpatialFilter of the first reference signal.

[0261] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: a DL RX Spatial Filter of the first candidate reference signal is used to determine the DL RX Spatial Filter of the first reference signal.

[0262] As a sub-embodiment of this embodiment, the spatial characteristic of the first candidate reference signal is used to determine the spatial characteristic of the first reference signal, including: receiving the first candidate reference signal according to a spatial relationship reference with reference to the first candidate reference signal.

[0263] As an embodiment, the QCL described in this application refers to: Quasi Co-Location.

[0264] As an embodiment, the QCL described in this application refers to: Quasi Co-Located.

[0265] As an embodiment, the QCL described in this application includes QCL parameters.

[0266] As an example, the QCL described in this application includes a QCL assumption.

[0267] As an embodiment, the QCL types described in this application include TypeA, TypeB, TypeC and TypeD.

[0268] As an embodiment, the QCL parameters of the QCL type Type A in the present application include Doppler shift, Doppler spread, average delay and delay spread; the QCL parameters of the QCL type Type B include Doppler shift and Doppler spread; the QCL parameters of the QCL type Type C include Doppler shift and average delay; the QCL parameters of the QCL type Type D include spatial reception parameters (spatialRxparameter).

[0269] As an embodiment, the QCL described in the present application includes at least one of Doppler shift, Doppler spread, average delay, delay spread, spatial transmission parameter (Spatial Txparameter) or spatial reception parameter (Spatial Rxparameter).

[0270] As an embodiment, the specific definitions of TypeA, TypeB, TypeC and TypeD in the present application refer to clause 5.1.5 of 3GPP TS 38.214.

[0271] As an embodiment, the second cell identifier is a non-negative integer.

[0272] As an embodiment, the second cell identifier is ServCellIndex.

[0273] As an embodiment, the second cell identifier is SCellIndex.

[0274] As an embodiment, the second cell identifier is AdditionalPCIIndex.

[0275] As an embodiment, the second cell identifier is PCI.

[0276] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: initialization of a generator of a scrambling sequence of a physical channel occupied by signaling of the second reference signal being configured to be dependent on the second cell identifier.

[0277] As a sub-embodiment of this embodiment, the signaling for configuring the second reference signal is RRC signaling.

[0278] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for configuring the second reference signal includes PDSCH.

[0279] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: initialization of a generator of a scrambling sequence of a physical channel occupied by signaling for activating the second reference signal being dependent on the second cell identifier.

[0280] As a sub-embodiment of this embodiment, the signaling for activating the second reference signal is dynamic signaling.

[0281] As a sub-embodiment of this embodiment, the signaling for activating the second reference signal includes MAC layer signaling.

[0282] As a sub-embodiment of this embodiment, the signaling for activating the second reference signal is MAC CE.

[0283] As a sub-embodiment of this embodiment, the signaling for activating the second reference signal includes DCI.

[0284] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for activating the second reference signal includes PDSCH.

[0285] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for activating the second reference signal includes PDCCH.

[0286] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: activating an interleaver of a physical channel occupied by signaling of the second reference signal being dependent on the second cell identifier.

[0287] As a sub-embodiment of this embodiment, the signaling for activating the second reference signal is DCI.

[0288] As a sub-embodiment of this embodiment, the physical channel occupied by the signaling for activating the second reference signal includes PDCCH.

[0289] As an embodiment, the generation of the second reference signal depends on the second cell identifier, including: the second reference signal is scrambled by the second cell identifier.

[0290] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: initialization of the scrambling sequence of the second reference signal being dependent on the second cell identifier.

[0291] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: the generation of the RS sequence of the second reference signal being dependent on the second cell identifier.

[0292] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: initialization of a generator for generating a pseudo-random sequence for the second reference signal being dependent on the second cell identifier.

[0293] As a sub-embodiment of this embodiment, the configuration is completed through RRC signaling.

[0294] As a sub-embodiment of this embodiment, the candidate identifier is equal to scramblingID.

[0295] As a sub-embodiment of this embodiment, the candidate identifier is equal to sequenceGenerationConfig.

[0296] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes scrambling.

[0297] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes sequence.

[0298] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes an ID.

[0299] As a sub-embodiment of this embodiment, the name of the signaling used to configure the candidate identifier includes Generation.

[0300] As an embodiment, the generation of the second reference signal being dependent on the second cell identifier includes: a spatial characteristic of a second candidate reference signal is used to determine the spatial characteristic of the second reference signal, and the generation of the second candidate reference signal is dependent on the second cell identifier.

[0301] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: the second candidate reference signal and the second reference signal are QCL.

[0302] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: a spatial filter of the second candidate reference signal is used to determine the spatial filter of the second reference signal.

[0303] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: a spatial filter of the second candidate reference signal is the same as a spatial filter of the second reference signal.

[0304] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: a spatial reception parameter of the second candidate reference signal is used to determine a spatial reception parameter of the second reference signal.

[0305] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: a spatial reception parameter of the second candidate reference signal is the same as a spatial reception parameter of the second reference signal.

[0306] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: spatial domain filtering of the second candidate reference signal is used to determine spatial domain filtering of the second reference signal.

[0307] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: spatial domain filtering of the second candidate reference signal is the same as spatial domain filtering of the second reference signal.

[0308] As a sub-embodiment of this embodiment, the feature "the spatial characteristics of the second candidate reference signal are used to determine the spatial characteristics of the second reference signal" means that: the spatial filtering of the second candidate reference signal is used to determine the spatial filtering of the second reference signal.

[0309] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: the spatial filtering of the second candidate reference signal is the same as the spatial filtering of the second reference signal.

[0310] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: the DL RX Spatial Filter of the second candidate reference signal is used to determine the DL RX Spatial Filter of the second reference signal.

[0311] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: a DL RX Spatial Filter of the second candidate reference signal is the same as a DL RX Spatial Filter of the second reference signal.

[0312] As a sub-embodiment of this embodiment, the spatial characteristic of the second candidate reference signal is used to determine the spatial characteristic of the second reference signal, including: receiving the second candidate reference signal according to a spatial relationship reference with reference to the second candidate reference signal.

[0313] As an embodiment, the first cell identifier and the second cell identifier are cell identifiers of the same type.

[0314] As an embodiment, the first cell identifier and the second cell identifier are respectively used to identify a cell.

[0315] As an embodiment, the cell identified by the first cell identifier is a first cell, and the cell identified by the second cell identifier is a second cell.

[0316] As a sub-embodiment of this embodiment, the first cell is a service cell of the first node.

[0317] As a sub-embodiment of this embodiment, the first cell is not a service cell of the first node.

[0318] As a sub-embodiment of this embodiment, the first cell is a cell other than a service cell of the first node.

[0319] As a sub-embodiment of this embodiment, the second cell is a service cell of the first node.

[0320] As a sub-embodiment of this embodiment, the second cell is not a service cell of the first node.

[0321] As a sub-embodiment of this embodiment, the second cell is a cell other than a service cell of the first node.

[0322] As a sub-embodiment of this embodiment, the first cell and the second cell are both service cells of the first node.

[0323] As a sub-embodiment of this embodiment, one of the first cell and the second cell is a service cell of the first node.

[0324] As a sub-embodiment of this embodiment, one of the first cell and the second cell is a cell other than a service cell of the first node.

[0325] As an embodiment, the serving cell described in the present application is a PCell (Primary Cell).

[0326] As an embodiment, the serving cell described in the present application is a SCell (Secondary Cell).

[0327] As an embodiment, the service cell described in the present application is a SpCell (Special Cell).

[0328] As an embodiment, the service cell described in the present application is an MCG (Master Cell Group) cell.

[0329] As an embodiment, the serving cell described in the present application is a SCG (Secondary Cell Group) cell.

[0330] As an embodiment, the first cell identifier and the second cell identifier are respectively used to indicate two different types of cells.

[0331] As a sub-embodiment of this embodiment, the first cell identifier indicates a base station, and the second cell identifier indicates a cell device other than the base station.

[0332] As a sub-embodiment of this embodiment, the second cell identifier indicates a base station, and the first cell identifier indicates a cell device other than a base station.

[0333] As a sub-embodiment of this embodiment, the first cell identifier indicates a base station, and the second cell identifier indicates a relay node device.

[0334] As a sub-embodiment of this embodiment, the second cell identifier indicates a base station, and the first cell identifier indicates a relay node device.

[0335] As a sub-embodiment of this embodiment, the first cell identifier indicates a base station, and the second cell identifier indicates the first type of device in this application.

[0336] As a sub-embodiment of this embodiment, the second cell identifier indicates a base station, and the first cell identifier indicates the first type of device in this application.

[0337] As a sub-embodiment of this embodiment, the first cell identifier indicates a base station, and the second cell identifier indicates a RIS (Reconfigurable Intelligent Surface) device.

[0338] As a sub-embodiment of this embodiment, the second cell identifier indicates a base station, and the first cell identifier indicates a RIS device.

[0339] As an embodiment, the candidate value range of the first cell identifier is the same as the candidate value range of the second cell identifier.

[0340] As an embodiment, the value of the first cell identifier is different from the value of the second cell identifier.

[0341] As an embodiment, the first cell identifier and the second cell identifier are indicated by fields with the same name.

[0342] As an embodiment, the first cell identifier and the second cell identifier are configured by the same field.

[0343] As an embodiment, the first cell identifier and the second cell identifier are indicated by the same domain.

[0344] As an embodiment, the first cell identifier and the second cell identifier are configured by RRC IE (Information Element) with the same name.

[0345] As an embodiment, the first cell identifier and the second cell identifier are indicated by RRC IE with the same name.

[0346] As an embodiment, the first cell identifier and the second cell identifier are configured by fields of the same name in RRC IEs of the same name.

[0347] As an embodiment, the first cell identifier and the second cell identifier are indicated by fields with the same name in RRC IEs with the same name.

[0348] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port.

[0349] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port.

[0350] As an embodiment, the antenna port for sending the first reference signal and the antenna port for sending the second reference signal are the same antenna port.

[0351] As an embodiment, the antenna port for sending the first reference signal and the antenna port for sending the second reference signal are the same antenna port.

[0352] As an embodiment, the first reference signal and the second reference signal respectively include an antenna port, and the antenna port included in the first reference signal and the antenna port included in the second reference signal are the same antenna port.

[0353] As an embodiment, the first reference signal and the second reference signal respectively include multiple antenna ports, and each of the multiple antenna ports included in the first reference signal and the multiple antenna ports included in the second reference signal are the same antenna port.

[0354] As an embodiment, the antenna port having the same index as the first reference signal and the second reference signal is the same antenna port.

[0355] As an embodiment, the antenna port having the same index as the first reference signal resource in the present application and the second reference signal resource in the present application is the same antenna port.

[0356] As an embodiment, the fact that one antenna port and another antenna port are the same antenna port includes: a channel conveyed on a symbol on the one antenna port can be inferred from a channel conveyed on a symbol on the other antenna port.

[0357] As a sub-embodiment of this embodiment, the channel transmitted on the symbol on one antenna port means: the channel experienced by the symbol on the one antenna port.

[0358] As a sub-embodiment of this embodiment, the channel transmitted on the symbol on one antenna port means: the channel traversed by the symbol transmitted using the one antenna port.

[0359] As a sub-embodiment of this embodiment, the channel transmitted on the symbol on one antenna port means: the channel experienced by the symbol mapped to the one antenna port.

[0360] As an embodiment, the meaning that one antenna port and another antenna port are the same antenna port includes: the first node can perform joint channel estimation based on signals received on the one antenna port and the another antenna port.

[0361] As an embodiment, the fact that one antenna port and another antenna port are the same antenna port includes: the first node can perform joint channel equalization based on signals received on the one antenna port and the another antenna port.

[0362] As an embodiment, the fact that one antenna port and another antenna port are the same antenna port includes: the first node can perform joint channel decoding based on the signals received on the one antenna port and the another antenna port.

[0363] As an embodiment, the meaning that one antenna port and another antenna port are the same antenna port includes: the one antenna port and the another antenna port use the same transmit spatial filter (Tx spatial filter) and precoding (precoding).

[0364] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the first node assumes that the first reference signal and the second reference signal are sent by the same antenna port.

[0365] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the first node assumes that the first reference signal and the second reference signal are sent by the same antenna port.

[0366] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the first antenna port is an antenna port of the first reference signal, the second antenna port is an antenna port of the second reference signal, and the first node assumes that the first antenna port and the second antenna port are the same antenna port.

[0367] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the first node considers that the first reference signal and the second reference signal are sent by the same antenna port.

[0368] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the first node considers that the first reference signal and the second reference signal are sent by the same antenna port.

[0369] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the first antenna port is an antenna port of the first reference signal, the second antenna port is an antenna port of the second reference signal, and the first node considers that the first antenna port and the second antenna port are the same antenna port.

[0370] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses the same antenna port to send the first reference signal and the second reference signal.

[0371] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses the same antenna port to send the first reference signal and the second reference signal.

[0372] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: in the present application, the second node uses a first antenna port to send the first reference signal, and the first antenna port is an antenna port of the first reference signal; in the present application, the second node uses a second antenna port to send the second reference signal, and the second antenna port is an antenna port of the second reference signal, and the first antenna port and the second antenna port are the same antenna port.

[0373] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses multiple antenna ports to send the first reference signal, and the second reference signal is a reference signal formed after other reference signals other than the first reference signal sent by the multiple antenna ports are reflected by the first type of device in the present application.

[0374] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses the first antenna port to send the first reference signal, and the second reference signal is a reference signal formed by other reference signals other than the first reference signal sent by the first antenna port after being reflected by the first type of device in the present application.

[0375] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses multiple antenna ports to send the first reference signal, and the second reference signal is a reference signal formed after RIS reflection of other reference signals other than the first reference signal sent by the multiple antenna ports.

[0376] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses the first antenna port to send the first reference signal, and the second reference signal is a reference signal formed by RIS reflection of other reference signals other than the first reference signal sent by the first antenna port.

[0377] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal correspond to the same reference signal resource.

[0378] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal correspond to the same reference signal resource identifier.

[0379] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal correspond to the same reference signal resource set.

[0380] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal correspond to the same reference signal resource set identifier.

[0381] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal correspond to two different reference signal resources in the same reference signal resource set.

[0382] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal correspond to two different reference signal resource identifiers in the same reference signal resource set.

[0383] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal are respectively two reference signal transmissions in the same reference signal resource.

[0384] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal are two reference signal transmissions in the same reference signal resource set.

[0385] As a sub-embodiment of the above four embodiments, the reference signal other than the first reference signal is a third reference signal, and the third reference signal and the first reference signal are two reference signal transmissions of two different reference signal resources in the same reference signal resource set.

[0386] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses multiple antenna ports to send the second reference signal, and the first reference signal is a reference signal formed after other reference signals other than the second reference signals sent by the multiple antenna ports are reflected by the first type of device in the present application.

[0387] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses the first antenna port to send the second reference signal, and the first reference signal is a reference signal formed by other reference signals other than the second reference signal sent by the first antenna port after being reflected by the first type of device in the present application.

[0388] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses multiple antenna ports to send the second reference signal, and the first reference signal is a reference signal formed by RIS reflection of other reference signals other than the second reference signal sent by the multiple antenna ports.

[0389] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, including: the second node in the present application uses the first antenna port to send the second reference signal, and the first reference signal is a reference signal formed by RIS reflection of other reference signals other than the second reference signal sent by the first antenna port.

[0390] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal correspond to the same reference signal resource.

[0391] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal correspond to the same reference signal resource identifier.

[0392] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal correspond to the same reference signal resource set.

[0393] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal correspond to the same reference signal resource set identifier.

[0394] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal correspond to two different reference signal resources in the same reference signal resource set.

[0395] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal correspond to two different reference signal resource identifiers in the same reference signal resource set.

[0396] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal are respectively two reference signal transmissions in the same reference signal resource.

[0397] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal are respectively two reference signal transmissions in the same reference signal resource set.

[0398] As a sub-embodiment of the above four embodiments, the reference signal other than the second reference signal is a fourth reference signal, and the fourth reference signal and the second reference signal are two reference signal transmissions of two different reference signal resources in the same reference signal resource set.

[0399] As an embodiment, the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal at least partially overlap, including: there is at least one subcarrier that belongs to both the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal.

[0400] As an embodiment, the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal are located in the same carrier.

[0401] As an embodiment, the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal are located in the same BWP (BandWidth Part, partial bandwidth).

[0402] As a sub-embodiment of this embodiment, the same BWP refers to: a BWP with the same index.

[0403] As a sub-embodiment of this embodiment, the same BWP refers to a BWP that occupies the same frequency resources.

[0404] As a sub-embodiment of this embodiment, the same BWP refers to a BWP having the same index of a starting RB (Resource Block) and the same number of occupied RBs, and the index of the starting RB is on a common RB grid (on CommonRB grid, on CRB grid) relative to common RB#0 (inrelation to CRB#0).

[0405] As an embodiment, the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal completely overlap.

[0406] As an embodiment, the first reference signal and the second reference signal occupy the same subcarrier set in the frequency domain, and the subcarrier set includes multiple subcarriers.

[0407] As an embodiment, the first reference signal and the second reference signal adopt the same pattern.

[0408] As an embodiment, the time domain resources occupied by the first reference signal and the time domain resources occupied by the second reference signal are orthogonal in the time domain.

[0409] As an embodiment, the time domain resources occupied by the first reference signal and the time domain resources occupied by the second reference signal are TDM (Time Division Multiplexing) in the time domain.

[0410] Example 2

[0411] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0412] Attached Figure 2The network architecture of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced) and future 5G systems is described. The network architecture of LTE, LTE-A and future 5G systems is called EPS (Evolved Packet System). The 5GNR or LTE network architecture may be referred to as 5GS (5G System) / EPS200 or some other appropriate terminology. 5GS / EPS200 may include one or more UE201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5G-CN (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. 5GS / EPS200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. Figure 2As shown, 5GS / EPS200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit switching services. NG-RAN 202 includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a wireless base station, a wireless transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (Transmitter Receiver Point), or some other suitable term. gNB 203 provides an access point to 5G-CN / EPC 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB 203 is connected to 5G-CN / EPC 210 via S1 / NG interface. 5G-CN / EPC 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212 and P-GW (Packet Data Network Gateway) / UPF 213.MME / AMF / SMF 211 is a control node that handles signaling between UE 201 and 5G-CN / EPC 210. In general, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, and S-GW / UPF 212 itself is connected to P-GW / UPF 213. P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet services 230. Internet services 230 include operator-corresponding Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem) and packet switching services.

[0413] As an embodiment, the first node in the present application includes the UE 201.

[0414] As an embodiment, the second node in the present application includes the gNB 203.

[0415] As an embodiment, the second node in the present application includes the gNB 204.

[0416] As an embodiment, the UE 201 includes a mobile phone.

[0417] As an embodiment, the UE 201 is a vehicle including a car.

[0418] As an embodiment, the gNB 203 is a macro cell base station.

[0419] As an embodiment, the gNB 203 is a micro cell base station.

[0420] As an embodiment, the gNB 203 is a pico cell base station.

[0421] As an embodiment, the gNB 203 is a home base station (Femtocell).

[0422] As an embodiment, the gNB 203 is a base station device that supports a large delay difference.

[0423] As an embodiment, the gNB 203 is a flying platform device.

[0424] As an embodiment, the gNB 203 is a satellite device.

[0425] As an embodiment, the gNB 203 is a test device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).

[0426] As an embodiment, the gNB 204 is a macro cell base station.

[0427] As an embodiment, the gNB 204 is a micro cell base station.

[0428] As an embodiment, the gNB 204 is a picocell base station.

[0429] As an embodiment, the gNB 204 is a home base station.

[0430] As an embodiment, the gNB 204 is a base station device that supports a large delay difference.

[0431] As an embodiment, the gNB 204 is a flying platform device.

[0432] As an embodiment, the gNB 204 is a satellite device.

[0433] As an embodiment, the gNB 204 is a test device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).

[0434] As an embodiment, the gNB 204 is a relay node device.

[0435] As an embodiment, the gNB 204 is the first type of device in this application.

[0436] As an embodiment, the gNB 204 is a RIS device.

[0437] As an embodiment, the gNB 203 and the gNB 204 are the same node.

[0438] As an embodiment, the gNB 203 and the gNB 204 are two different nodes.

[0439] As an embodiment, the relay node device includes a relay.

[0440] As an embodiment, the relay node device includes an L3 relay.

[0441] As an embodiment, the relay node device includes an L2 relay.

[0442] As an embodiment, the relay node device includes a router.

[0443] As an embodiment, the relay node device includes a switch.

[0444] As an embodiment, the relay node device includes a user equipment.

[0445] As an embodiment, the relay node device includes a base station device.

[0446] As an embodiment, the relay node device includes a RIS.

[0447] As an embodiment, the relay node device includes the first type of device in the present application.

[0448] As an embodiment, the wireless link from the UE 201 to the gNB 203 is an uplink, and the uplink is used to perform uplink transmission.

[0449] As an embodiment, the wireless link from the gNB 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0450] As an embodiment, the wireless link between the UE 201 and the gNB 203 includes a cellular network link.

[0451] As an embodiment, the UE 201 and the gNB 203 are connected via a Uu air interface.

[0452] As an embodiment, the sender of the first reference signal includes the gNB 203.

[0453] As an embodiment, the receiver of the first reference signal includes the UE 201.

[0454] As an embodiment, the sender of the first reference signal includes the gNB 204.

[0455] As an embodiment, the receiver of the first reference signal includes the UE 201.

[0456] As an embodiment, the sender of the second reference signal includes the gNB 203.

[0457] As an embodiment, the receiver of the second reference signal includes the UE 201.

[0458] As an embodiment, the sender of the second reference signal includes the gNB 204.

[0459] As an embodiment, the receiver of the second reference signal includes the UE 201.

[0460] As an embodiment, the UE 201 supports RIS.

[0461] As an embodiment, the gNB 203 supports RIS.

[0462] As an embodiment, the UE 201 supports a 5G system.

[0463] As an embodiment, the UE 201 supports the 6G system.

[0464] As an embodiment, the gNB 203 supports the 6G system.

[0465] As an embodiment, the UE 201 at least supports the 6G system.

[0466] As an embodiment, the gNB 203 at least supports the 6G system.

[0467] As an embodiment, the UE 201 supports irregular coverage.

[0468] Example 3

[0469] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0470] Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The wireless protocol architecture of the control plane 300 for the first communication node device (RSU (Road Side Unit) in UE or V2X (Vehicle to Everything), vehicle-mounted device or vehicle-mounted communication module) and the second node device (gNB, RSU in UE or V2X, vehicle-mounted device or vehicle-mounted communication module), or between two UEs is presented in three layers: Layer 1 (Layer 1, L1), Layer 2 (Layer 2, L2) and Layer 3 (Layer 3, L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to as PHY 301 in this article. L2305 is above PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs through PHY 301. L2305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides inter-zone mobility support for the first communication node device between the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception caused by HARQ (Hybrid Automatic Repeat Quest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various wireless resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The wireless protocol architecture of the user plane 350 includes layer 1 (L1) and layer 2 (L2). The wireless protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in L2355, the RLC sublayer 353 in L2355, and the MAC sublayer 352 in L2355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. L2355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for the mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above L2355, including a network layer (e.g., IP (Internet Protocol) layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, a server, etc.).

[0471] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0472] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0473] As an embodiment, the first reference signal is generated by the PHY301 or PHY351.

[0474] As an embodiment, the second reference signal is generated by the PHY301 or PHY351.

[0475] As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0476] As an embodiment, the higher layer in the present application includes a MAC layer.

[0477] As an embodiment, the higher layer in the present application includes an RRC layer.

[0478] Example 4

[0479] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 Attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0480] The first communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0481] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0482] In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of L2. In DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-PSK, M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to different antennas 420.

[0483] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of L1. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (Fast Fourier Transform, FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any parallel stream with the second communication device 450 as the destination. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of L2. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between transmission and logical channels to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above L2. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using confirmation (ACKnowledgement, ACK) and / or negative confirmation (NegativeACKnowledgement, NACK) protocols to support HARQ operations.

[0484] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0485] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of L1. The controller / processor 475 implements the L2 functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0486] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 device receives at least a first reference signal and a second reference signal, the generation of the first reference signal depends on a first cell identifier, and the generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different; the first reference signal and the second reference signal are sent by the same antenna port, and the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal at least partially overlap.

[0487] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first reference signal; receiving a second reference signal.

[0488] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least sends at least the first reference signal of a first reference signal and a second reference signal, the generation of the first reference signal depends on a first cell identifier, and the generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different; the first reference signal and the second reference signal are sent by the same antenna port, and the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal at least partially overlap.

[0489] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending at least the first reference signal among a first reference signal and a second reference signal.

[0490] As an embodiment, the first node in the present application includes the second communication device 450.

[0491] As an embodiment, the second node in the present application includes the first communication device 410.

[0492] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a first reference signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a first reference signal.

[0493] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a second reference signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a second reference signal.

[0494] Example 5

[0495] Embodiment 5 illustrates a flow chart of transmission between a first node and a second node according to an embodiment of the present application. Figure 5 In the embodiment, the first node U1 communicates with the second node N2 via a wireless link; the first node U1 communicates with the second node N3 via a wireless link. It should be noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

[0496] For the first node U1, a first reference signal is received in step S510; and a second reference signal is received in step S511.

[0497] For the second node N2, a first reference signal is sent in step S520.

[0498] For the third node N3, a second reference signal is sent in step S530.

[0499] In embodiment 5, generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different; the first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

[0500] As an embodiment, the first node U1 is the first node in this application.

[0501] As an embodiment, the second node N2 is the second node in this application.

[0502] As an embodiment, the third node N3 is the second node in this application.

[0503] As an embodiment, the second node in the present application includes the second node N2 and the third node N3.

[0504] As an embodiment, the first node U1 is connected to the first cell in the present application through the second node N2.

[0505] As an embodiment, the first node U1 is connected to the second cell in the present application through the third node N3.

[0506] As an embodiment, the second node N2 includes a base station maintaining a service cell of the first node U1.

[0507] As an embodiment, the second node N2 is a base station maintaining a service cell of the first node U1.

[0508] As an embodiment, the second node N2 is not a base station maintaining a service cell of the first node U1.

[0509] As an embodiment, in the present application, the first cell is a service cell of the first node, and the second node N2 is a maintaining base station of the first cell.

[0510] As an embodiment, in the present application, the first cell is not a service cell of the first node, and the second node N2 is not a maintaining base station of the first cell.

[0511] As an embodiment, the second node N2 includes a DU in the first cell in the present application.

[0512] As an embodiment, the second node N2 includes a DU that maintains base station association of the first cell in the present application.

[0513] As an embodiment, the third node N3 includes a base station maintaining a service cell of the first node U1.

[0514] As an embodiment, the third node N3 is a base station maintaining a service cell of the first node U1.

[0515] As an embodiment, the third node N3 is not a base station maintaining the service cell of the first node U1.

[0516] As an embodiment, in the present application, the second cell is a service cell of the first node, and the third node N3 is a maintaining base station of the second cell.

[0517] As an embodiment, in the present application, the second cell is not a service cell of the first node, and the third node N3 is not a maintaining base station of the second cell.

[0518] As an embodiment, the third node N3 includes a DU (Distributed Unit) in the second cell in the present application.

[0519] As an embodiment, the third node N3 includes a DU that maintains base station association of the second cell in the present application.

[0520] As an embodiment, the second node N2 and the third node N3 include the same base station.

[0521] As an embodiment, one of the second node N2 and the third node N3 includes a base station maintaining a service cell of the first node U1.

[0522] As an embodiment, one of the second node N2 and the third node N3 is a base station maintaining a service cell of the first node U1.

[0523] As an embodiment, the second node N2 includes a TRP in the first cell in the present application.

[0524] As an embodiment, the second node N2 is a TRP in the first cell in the present application.

[0525] As an embodiment, the second node N2 is not a TRP in the first cell in this application.

[0526] As an embodiment, in the present application, the first cell is a service cell of the first node, and the second node N2 is a TRP in the first cell.

[0527] As an embodiment, in the present application, the first cell is not a service cell of the first node, and the second node N2 is not a TRP in the first cell.

[0528] As an embodiment, the third node N3 includes a TRP in the second cell in the present application.

[0529] As an embodiment, the third node N3 is a TRP in the second cell in the present application.

[0530] As an embodiment, the third node N3 is not a TRP in the second cell in this application.

[0531] As an embodiment, in the present application, the second cell is a service cell of the first node, and the third node N3 is a TRP in the second cell.

[0532] As an embodiment, in the present application, the second cell is not a service cell of the first node, and the third node N3 is not a TRP in the second cell.

[0533] As an embodiment, the second node N2 and the third node N3 are two different TRPs respectively.

[0534] As an embodiment, the second node N2 and the third node N3 are two different TRPs in the same base station.

[0535] As an embodiment, the second node N2 and the third node N3 are respectively two TRPs maintaining base stations of the service cell of the first node U1.

[0536] As an embodiment, the second node N2 and the third node N3 are two different TRPs of the same DU.

[0537] As an embodiment, the first node U1 is a user equipment, the second node N2 is a base station device, and the third node N3 is a relay node device.

[0538] As an embodiment, the first node U1 is a user equipment, the second node N2 is a relay node device, and the third node N3 is a base station device.

[0539] As an embodiment, the first node U1 is a user equipment, the second node N2 is a user equipment, and the third node N3 is a base station device.

[0540] As an embodiment, the first node U1 is a user equipment, the second node N2 is a base station device, and the third node N3 is a user equipment.

[0541] As an embodiment, the first node U1 is a user equipment, the second node N2 is the first type of equipment in the present application, and the third node N3 is a base station device.

[0542] As an embodiment, the first node U1 is a user equipment, the second node N2 is a base station device, and the third node N3 is the first type of device in this application.

[0543] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0544] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0545] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0546] As an embodiment, the air interface between the second node N2 and the first node U1 includes one or more of a wireless interface between a TRP and a user equipment, a wireless interface between a CU (Centralized Unit) and a user equipment, or a wireless interface between a DU and a user equipment.

[0547] As an embodiment, the air interface between the third node N3 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0548] As an embodiment, the air interface between the third node N3 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0549] As an embodiment, the air interface between the third node N3 and the first node U1 includes a wireless interface between user equipments.

[0550] As an embodiment, the air interface between the third node N3 and the first node U1 includes one or more of a wireless interface between a TRP and a user equipment, a wireless interface between a CU and a user equipment, or a wireless interface between a DU and a user equipment.

[0551] As an embodiment, the second node N2 and the third node N3 are quasi-co-located.

[0552] As an embodiment, step S510 is before step S511; step S520 is before step S530.

[0553] As an embodiment, step S510 is after step S511; step S520 is after step S530.

[0554] Example 6

[0555] Embodiment 6 illustrates a schematic diagram of the relationship between the first reference signal and the second reference signal according to an embodiment of the present application. Figure 6 In the embodiment, the first reference signal and the second reference signal are associated with the same identifier.

[0556] As an embodiment, associating the same identifier includes: using the same index.

[0557] As an embodiment, the associating the same identifier includes: using the same SSB-Index.

[0558] As an embodiment, the associating the same identifier includes: using the same ssb-Index.

[0559] As an embodiment, associating with the same identifier includes: using the same identifier.

[0560] As an embodiment, the associating the same identifier includes: using the same CSI-RS resource identifier.

[0561] As an embodiment, the associating the same identifier includes: using the same CSI-RS resource ID.

[0562] As an embodiment, the associating the same identifier includes: using the same NZP-CSI-RS-ResourceId.

[0563] As an embodiment, the associating the same identifier includes: using the same NR-DL-PRS-ResourceID.

[0564] As an embodiment, the associating with the same identifier includes: using the same CSI-RS resource set identifier.

[0565] As an embodiment, the associating the same identifier includes: using the same NZP-CSI-RS-ResourceSetId.

[0566] As an embodiment, the associated identical identifiers include: the associated TCIs are identical.

[0567] As an embodiment, the associated identical identifiers include: the associated TCI States are identical.

[0568] As an embodiment, the associated identical identifiers include: the associated TCI-StateIds are identical.

[0569] As an embodiment, the associating with the same identifier includes: being identified by the same identifier.

[0570] As an embodiment, the Id mentioned in this application refers to: identity, identity or identification.

[0571] As an embodiment, the Id mentioned in this application refers to: identifier.

[0572] As an embodiment, the Id mentioned in this application refers to: identification, identity proof.

[0573] Example 7

[0574] Embodiment 7 illustrates a schematic diagram of the relationship between a channel for transmitting a first reference signal and a channel for transmitting a second reference signal according to an embodiment of the present application. Figure 7 In the invention, a channel for transmitting a first reference signal is used to infer a channel for transmitting a second reference signal; and a channel for transmitting the second reference signal is used to infer a channel for transmitting the first reference signal.

[0575] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, which means that, for the first reference signal and the second reference signal, a channel for transmitting one of the reference signals is used to infer a channel for transmitting the other reference signal.

[0576] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0577] The channel of the symbols transmitted on the antenna port used by the first reference signal can be inferred from the channel of the symbols transmitted on the antenna port used by the second reference signal, or the channel of the symbols transmitted on the antenna port used by the second reference signal can be inferred from the channel of the symbols transmitted on the antenna port used by the first reference signal.

[0578] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0579] The channel of the symbols transmitted on the antenna port used by the first reference signal can be inferred from the channel of the symbols transmitted on the antenna port used by the second reference signal, and the channel of the symbols transmitted on the antenna port used by the second reference signal can be inferred from the channel of the symbols transmitted on the antenna port used by the first reference signal.

[0580] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0581] The large-scale characteristics of the channel of symbols transmitted on the antenna port used by the first reference signal can be inferred from the large-scale characteristics of the channel of symbols transmitted on the antenna port used by the second reference signal, or the large-scale characteristics of the channel of symbols transmitted on the antenna port used by the second reference signal can be inferred from the large-scale characteristics of the channel of symbols transmitted on the antenna port used by the first reference signal.

[0582] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0583] The large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the first reference signal can be inferred from the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second reference signal, and the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second reference signal can be inferred from the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the first reference signal.

[0584] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0585] The small-scale characteristics of the channel of symbols transmitted on the antenna port used by the first reference signal can be inferred from the small-scale characteristics of the channel of symbols transmitted on the antenna port used by the second reference signal, or the small-scale characteristics of the channel of symbols transmitted on the antenna port used by the second reference signal can be inferred from the small-scale characteristics of the channel of symbols transmitted on the antenna port used by the first reference signal.

[0586] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0587] The small-scale characteristics of the channel of symbols transmitted on the antenna port used by the first reference signal can be inferred from the small-scale characteristics of the channel of symbols transmitted on the antenna port used by the second reference signal, and the small-scale characteristics of the channel of symbols transmitted on the antenna port used by the second reference signal can be inferred from the small-scale characteristics of the channel of symbols transmitted on the antenna port used by the first reference signal.

[0588] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0589] The first reference signal and the second reference signal can be used for joint channel estimation.

[0590] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0591] The first reference signal and the second reference signal can be used for joint channel equalization.

[0592] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0593] The first reference signal and the second reference signal can be used for joint channel decoding.

[0594] As an embodiment, for the first reference signal and the second reference signal, the channel for transmitting one of the reference signals is used to infer the channel for transmitting the other reference signal, including:

[0595] The first reference signal and the second reference signal use the same transmission spatial domain filter and precoding.

[0596] As an embodiment, the large-scale characteristics described in the present application include at least one of delay spread, Doppler spread, Doppler shift, average gain, average delay and spatial reception parameter.

[0597] As an embodiment, the small-scale characteristics described in the present application include at least one of multipath characteristics, fading characteristics and delay characteristics.

[0598] As an embodiment, the small-scale characteristics described in the present application include at least one of multipath characteristics, fading characteristics, delay characteristics and polarization characteristics.

[0599] As an embodiment, the small-scale characteristics described in the present application include at least one of cluster power, cluster delay, arrival angles, departure angles, RF coupling, and cross polarization power ratios.

[0600] As an embodiment, the channel estimation, channel equalization, channel decoding, and timing synchronization of the first node rely on the small-scale characteristics described in this application.

[0601] Example 8

[0602] Embodiment 8 illustrates a schematic diagram of a situation in which the first reference signal and the second reference signal are sent by the same antenna port according to an embodiment of the present application. Figure 8 As shown in the attached Figure 8 In the embodiment, when one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port.

[0603] In Embodiment 8, the candidate cell identifier set is configured for a first type of device, which is a device other than a base station.

[0604] As an embodiment, one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, including: the first cell identifier or the second cell identifier is a cell identifier included in the candidate cell identifier set.

[0605] As an embodiment, when the first cell identifier belongs to the candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port.

[0606] As an embodiment, when the second cell identifier belongs to the candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port.

[0607] As an embodiment, the candidate cell identifier set includes at least one cell identifier.

[0608] As an embodiment, the candidate cell identifier set includes a cell identifier.

[0609] As an embodiment, the candidate cell identifier set includes multiple cell identifiers.

[0610] As an embodiment, the candidate cell identifier set is configured through RRC signaling.

[0611] As an embodiment, a cell identified by any cell identifier in the candidate cell identifier set is a service cell of the first node.

[0612] As an embodiment, a cell identified by any cell identifier in the candidate cell identifier set is not a serving cell of the first node.

[0613] As an embodiment, a cell identified by any cell identifier in the candidate cell identifier set is an additional cell of the first node.

[0614] As an embodiment, a cell identified by a cell identifier in the candidate cell identifier set is a service cell of the first node.

[0615] As an embodiment, there is a cell identifier in the candidate cell identifier set, and the cell identified by the cell identifier is not a serving cell of the first node.

[0616] As an embodiment, a cell identified by a cell identifier in the candidate cell identifier set is an additional cell of the first node.

[0617] As an embodiment, the additional cell is not a serving cell.

[0618] As an embodiment, the additional cell is a cell used for inter-cell mobility.

[0619] As an embodiment, the additional cell is a cell used for inter-cell beam management.

[0620] As an embodiment, the additional cell is a cell used for L1 (Layer 1) / L2 (Layer 2) inter-cell mobility.

[0621] As an embodiment, the additional cell is a cell used for L1 / L2 inter-cell beam management.

[0622] As an embodiment, the candidate cell identifier set is configured for the first type of device, including: the cell identifiers included in the candidate cell identifier set are configured for the first type of device.

[0623] As an embodiment, the candidate cell identifier set is configured for the first type of device, including: the cell identifiers included in the candidate cell identifier set are used to identify the first type of device.

[0624] As an embodiment, the candidate cell identifier set is configured for the first type of device, including: the cell identifiers included in the candidate cell identifier set are used to indicate the first type of device.

[0625] As an embodiment, the candidate cell identifier set is configured for the first type of device, including: the cell identifiers included in the candidate cell identifier set are used to generate wireless signals transmitted by the first type of device.

[0626] As an embodiment, the candidate cell identifier set is configured for the first type of device, including: the cell identifiers included in the candidate cell identifier set are used to generate the wireless signal reflected by the first type of device.

[0627] As an embodiment, the candidate cell identifier set is configured for the first category of devices, including: the cell identifiers included in the candidate cell identifier set are used to generate wireless signals transmitted by the first category of devices.

[0628] As an embodiment, the first type of equipment is controlled by a base station.

[0629] As an embodiment, the first type of device is controlled by the base station via a control channel passing through an air interface.

[0630] As an embodiment, the first type of device and the base station send the first reference signal and the second reference signal respectively.

[0631] As an embodiment, the first type of device and the base station send the second reference signal and the first reference signal respectively.

[0632] As a sub-embodiment of the above two embodiments, the base station controls the first type of equipment.

[0633] As a sub-embodiment of the above two embodiments, the base station and the first type of device use antenna ports with the same index to send the first reference signal and the second reference signal respectively.

[0634] As a sub-embodiment of the above two embodiments, the base station and the first type of device use antenna ports with the same identification to send the first reference signal and the second reference signal respectively.

[0635] As a sub-embodiment of the above two embodiments, the base station and the first type of device use antenna ports with the same index to send the second reference signal and the first reference signal respectively.

[0636] As a sub-embodiment of the above two embodiments, the base station and the first type of device use antenna ports with the same identification to send the second reference signal and the first reference signal respectively.

[0637] Example 9

[0638] Embodiment 9 illustrates a schematic diagram of another situation in which the first reference signal and the second reference signal are sent by the same antenna port according to an embodiment of the present application. Fig. 9 As shown in the attached Fig. 9 In the method, the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier.

[0639] In Embodiment 9, the first reference signal and the second reference signal are sent by the same antenna port.

[0640] As an embodiment, only when the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier, the first reference signal and the second reference signal are sent by the same antenna port.

[0641] As an embodiment, when the first cell identifier is used to generate the second cell identifier, the first reference signal and the second reference signal are sent by the same antenna port.

[0642] As an embodiment, when the second cell identifier is used to generate the first cell identifier, the first reference signal and the second reference signal are sent by the same antenna port.

[0643] As an embodiment, the first cell identifier is used to generate the second cell identifier, including: the first cell identifier is configured, the second cell identifier is the sum of the first cell identifier and a first offset value; the first offset value is configured, or the first offset value is predefined, or the first offset value is fixed.

[0644] As an embodiment, the first cell identifier is used to generate the second cell identifier, including: the first cell identifier and the second cell identifier appear in pair, and when the value of the first cell identifier is determined, the value of the second cell identifier is determined accordingly.

[0645] As an embodiment, the first cell identifier is used to generate the second cell identifier, including: the first cell identifier is mapped to the second cell identifier, and when the value of the first cell identifier is determined, the value of the second cell identifier is determined accordingly.

[0646] As an embodiment, the first cell identifier is used to generate the second cell identifier, including: the first cell identifier and the second cell identifier are linearly correlated, and when the value of the first cell identifier is determined, the value of the second cell identifier is determined accordingly.

[0647] As an embodiment, the second cell identifier is used to generate the first cell identifier, including: the second cell identifier is configured, the first cell identifier is the sum of the second cell identifier and a second offset value; the second offset value is configured, or the second offset value is predefined, or the second offset value is fixed.

[0648] As an embodiment, the second cell identifier is used to generate the first cell identifier, including: the second cell identifier and the first cell identifier appear in pairs, and when the value of the second cell identifier is determined, the value of the first cell identifier is determined accordingly.

[0649] As an embodiment, the second cell identifier is used to generate the first cell identifier, including: the second cell identifier is mapped to the first cell identifier, and when the value of the second cell identifier is determined, the value of the first cell identifier is determined accordingly.

[0650] As an embodiment, the second cell identifier is used to generate the first cell identifier, including: the second cell identifier is linearly correlated with the first cell identifier, and when the value of the second cell identifier is determined, the value of the first cell identifier is determined accordingly.

[0651] Example 10

[0652] Embodiment 10 illustrates a schematic diagram of a situation of a first type of device according to an embodiment of the present application, as shown in the attached Fig.10 As shown in the attached Fig.10 In the embodiment, the first type of device is used to reflect the wireless signal of the base station.

[0653] As an embodiment, the reflection includes: forwarding.

[0654] As an embodiment, the first type of device is used to forward wireless signals from a base station.

[0655] As an embodiment, the wireless signal includes: a baseband signal.

[0656] As an embodiment, the wireless signal includes: a radio frequency signal.

[0657] As an embodiment, the wireless signal includes: a beam.

[0658] As an embodiment, the forwarding includes: mirror reflection.

[0659] As an embodiment, the forwarding includes: non-specular reflection.

[0660] As an embodiment, the forwarding includes: transmission.

[0661] As an embodiment, the forwarding includes: at least one of reflection and transmission.

[0662] As an embodiment, the forwarding includes: full scattering.

[0663] As an embodiment, the forwarding includes: at least one of reflection, transmission and full scattering.

[0664] As an embodiment, the forwarding includes: transparent transmission.

[0665] As an embodiment, the forwarding includes: relaying.

[0666] As an embodiment, the first type of equipment includes: RIS equipment.

[0667] As an embodiment, the first type of equipment includes: a RIS panel.

[0668] As an embodiment, the RIS described in this application refers to: Reconfigurable Intelligent Surface.

[0669] As an embodiment, the RIS described in this application refers to: Intelligent Reflecting Surface (IRS), intelligent reflecting surface.

[0670] Embodiment 11

[0671] Embodiment 11 illustrates a schematic diagram of a situation of a sender of a first reference signal and a sender of a second reference signal according to an embodiment of the present application, as shown in the attached figure. Fig.11 As shown in the attached Fig.11 In the embodiment, the sender of the first reference signal is the base station, the sender of the third reference signal is the base station, the second reference signal is a reference signal formed after the third reference signal is reflected by a device other than the base station, and the sender of the second reference signal is a device other than the base station.

[0672] In embodiment 11, a sender of the first reference signal and a sender of the second reference signal are different.

[0673] As an embodiment, a sender of the first reference signal and a sender of the second reference signal are different.

[0674] As an embodiment, the sender of the first reference signal is a base station, and the sender of the second reference signal is the first type of device in this application.

[0675] As an embodiment, the sender of the first reference signal is the first type of device in the present application, and the sender of the second reference signal is a base station.

[0676] As an embodiment, the sender of the first reference signal is a base station, the sender of the third reference signal is a base station, the second reference signal is a reference signal formed after the third reference signal is forwarded by a device other than the base station, and the sender of the second reference signal is a device other than the base station.

[0677] As an embodiment, the sender of the second reference signal is a base station, the sender of the fourth reference signal is a base station, the first reference signal is a reference signal formed after the fourth reference signal is forwarded by a device other than the base station, and the sender of the first reference signal is a device other than the base station.

[0678] As an embodiment, the sender of the first reference signal is a base station, the sender of the third reference signal is a base station, the second reference signal is a reference signal formed after the third reference signal is forwarded by the first type of device in this application, and the sender of the second reference signal is the first type of device in this application.

[0679] As an embodiment, the sender of the second reference signal is a base station, the sender of the fourth reference signal is a base station, the first reference signal is a reference signal formed after the fourth reference signal is forwarded by the first type of device in this application, and the sender of the first reference signal is the first type of device in this application.

[0680] As an embodiment, the sender of the first reference signal is a base station, the sender of the third reference signal is a base station, the second reference signal is a reference signal formed after the third reference signal is reflected by the RIS, and the sender of the second reference signal is the RIS.

[0681] As an embodiment, the sender of the second reference signal is a base station, the sender of the fourth reference signal is a base station, the first reference signal is a reference signal formed after the fourth reference signal is reflected by the RIS, and the sender of the first reference signal is the RIS.

[0682] As an embodiment, the sender of the first reference signal is a base station, the sender of the third reference signal is a base station, the second reference signal is a reference signal formed after the third reference signal is reflected by a device outside the base station, and the sender of the second reference signal is a device outside the base station.

[0683] As an embodiment, the sender of the second reference signal is a base station, the sender of the fourth reference signal is a base station, the first reference signal is a reference signal formed after the fourth reference signal is reflected by a device outside the base station, and the sender of the first reference signal is a device outside the base station.

[0684] As an embodiment, the sender of the first reference signal is a base station, the sender of the third reference signal is a base station, the second reference signal is a reference signal formed after the third reference signal is reflected by the first type of device in this application, and the sender of the second reference signal is the first type of device in this application.

[0685] As an embodiment, the sender of the second reference signal is a base station, the sender of the fourth reference signal is a base station, the first reference signal is a reference signal formed after the fourth reference signal is reflected by the first type of device in this application, and the sender of the first reference signal is the first type of device in this application.

[0686] As an embodiment, the sender of the first reference signal is a base station, the sender of the third reference signal is a base station, the second reference signal is a reference signal formed after the third reference signal is reflected by the RIS, and the sender of the second reference signal is the RIS.

[0687] As an embodiment, the sender of the second reference signal is a base station, the sender of the fourth reference signal is a base station, the first reference signal is a reference signal formed after the fourth reference signal is reflected by the RIS, and the sender of the first reference signal is the RIS.

[0688] Example 12

[0689] Embodiment 12 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application, as shown in the attached figure. Fig.12 As shown in the attached Fig.12 In the example, the processing device 1200 in the first node includes a first receiver 1201.

[0690] In embodiment 12, the first receiver 1201 receives a first reference signal and a second reference signal, generation of the first reference signal depends on a first cell identifier, generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different.

[0691] In Embodiment 12, the first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

[0692] As an embodiment, the first reference signal and the second reference signal are associated with the same identifier.

[0693] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, which means that, for the first reference signal and the second reference signal, a channel for transmitting one of the reference signals is used to infer a channel for transmitting the other reference signal.

[0694] As an embodiment, when one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port; the candidate cell identifier set is configured to a first type of device, and the first type of device is a device other than a base station.

[0695] As an embodiment, only when the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier, the first reference signal and the second reference signal are sent by the same antenna port.

[0696] As an embodiment, the first type of device is used to reflect a wireless signal from a base station.

[0697] As a sub-embodiment of this embodiment, the reflection refers to: forwarding.

[0698] As an embodiment, a sender of the first reference signal and a sender of the second reference signal are different.

[0699] As an embodiment, the same antenna port is respectively located in the base station and the RIS device; or, the same antenna port is uniformly identified by the base station; or, the same antenna port is uniformly indexed by the base station; or, the same antenna port respectively corresponds to the antenna port used by the reference signal directly sent by the base station and the antenna port used by the reflected reference signal of the RIS.

[0700] As an embodiment, the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the first reference signal can be used to infer the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the second reference signal.

[0701] As an embodiment, the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the second reference signal can be inferred from the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the first reference signal.

[0702] As an embodiment, the small-scale characteristics described in the present application include at least one of multipath characteristics, fading characteristics, delay characteristics and polarization characteristics.

[0703] As an embodiment, the small-scale characteristics described in the present application include at least one of cluster power, cluster delay, arrival angles, departure angles, RF coupling, and cross polarization power ratios.

[0704] As an embodiment, the first node is user equipment.

[0705] As an embodiment, the first node is a relay node device.

[0706] As an embodiment, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0707] Example 13

[0708] Embodiment 13 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application, as shown in the attached figure. Fig.13 As shown in the attached Fig.13 In the example, the processing device 1300 in the second node includes a first transmitter 1301.

[0709] In embodiment 13, the first transmitter 1301 sends at least the first reference signal of a first reference signal and a second reference signal, generation of the first reference signal depends on a first cell identifier, generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different.

[0710] In Embodiment 13, the first reference signal and the second reference signal are sent by the same antenna port, and the frequency domain resources occupied by the first reference signal and the frequency domain resources occupied by the second reference signal at least partially overlap.

[0711] As an embodiment, the first transmitter 1301 only sends the first reference signal, and the third node in the present application sends the second reference signal.

[0712] As an embodiment, the first transmitter 1301 sends the first reference signal and the second reference signal, and the second reference signal received by the first node is reflected by the third node in the present application.

[0713] As an embodiment, the first reference signal and the second reference signal are associated with the same identifier.

[0714] As an embodiment, the first reference signal and the second reference signal are sent by the same antenna port, which means that, for the first reference signal and the second reference signal, a channel for transmitting one of the reference signals is used to infer a channel for transmitting the other reference signal.

[0715] As an embodiment, when one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port; the candidate cell identifier set is configured to a first type of device, and the first type of device is a device other than a base station.

[0716] As an embodiment, only when the first cell identifier is used to generate the second cell identifier, or the second cell identifier is used to generate the first cell identifier, the first reference signal and the second reference signal are sent by the same antenna port.

[0717] As an embodiment, the first type of device is used to reflect a wireless signal from a base station.

[0718] As a sub-embodiment of this embodiment, the reflection refers to: forwarding.

[0719] As a sub-embodiment of this embodiment, one of the second node and the third node described in this application includes the first type of device.

[0720] As an embodiment, a sender of the first reference signal and a sender of the second reference signal are different.

[0721] As an embodiment, the same antenna port is respectively located in the base station and the RIS device; or, the same antenna port is uniformly identified by the base station; or, the same antenna port is uniformly indexed by the base station; or, the same antenna port respectively corresponds to the antenna port used by the reference signal directly sent by the base station and the antenna port used by the reflected reference signal of the RIS.

[0722] As an embodiment, the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the first reference signal can be used to infer the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the second reference signal.

[0723] As an embodiment, the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the second reference signal can be inferred from the small-scale characteristic of the channel of the symbol transmitted on the antenna port used by the first reference signal.

[0724] As an embodiment, the small-scale characteristics described in the present application include at least one of multipath characteristics, fading characteristics, delay characteristics and polarization characteristics.

[0725] As an embodiment, the small-scale characteristics described in the present application include at least one of cluster power, cluster delay, arrival angles, departure angles, RF coupling, and cross polarization power ratios.

[0726] As an embodiment, the second node is a base station device.

[0727] As an embodiment, the second node is user equipment.

[0728] As an embodiment, the second node is a relay node device.

[0729] As an embodiment, the second node is a maintenance device of a serving cell.

[0730] As an embodiment, the second node is a serving cell maintaining device of the first node.

[0731] As an embodiment, the first transmitter 1301 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0732] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, transportation tools, vehicles, RSUs, wireless sensors, Internet cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSU, drones, test equipment, such as wireless communication equipment such as transceivers or signaling testers that simulate some functions of base stations.

[0733] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node used for reference signal transmission, characterized in that: include: A first receiver receives a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; The first cell identifier and the second cell identifier are different; The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

2. The first node according to claim 1, characterized in that: The first reference signal and the second reference signal are associated with the same identifier.

3. The first node according to claim 1 or 2, characterized in that: The first reference signal and the second reference signal being sent by the same antenna port means that, for the first reference signal and the second reference signal, a channel for transmitting one of the reference signals is used to infer a channel for transmitting the other reference signal.

4. The first node according to any one of claims 1 to 3, characterized in that: When one of the first cell identifier or the second cell identifier belongs to a candidate cell identifier set, the first reference signal and the second reference signal are sent by the same antenna port; the candidate cell identifier set is configured for a first type of device, and the first type of device is a device other than a base station.

5. The first node according to any one of claims 1 to 3, characterized in that: The first reference signal and the second reference signal are transmitted by the same antenna port only when the first cell identity is used to generate the second cell identity or the second cell identity is used to generate the first cell identity.

6. The first node according to claim 4, characterized in that: The first type of devices are used to reflect wireless signals from base stations.

7. The first node according to any one of claims 1 to 6, characterized in that: A sender of the first reference signal and a sender of the second reference signal are different.

8. A second node used for reference signal transmission, characterized in that: include: A first transmitter is configured to send at least the first reference signal of a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different; The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

9. A method for a first node used for reference signal transmission, characterized in that: include: receiving a first reference signal and a second reference signal, wherein generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; The first cell identifier and the second cell identifier are different; The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

10. A method for a second node used for reference signal transmission, characterized in that: include: Sending at least the first reference signal of a first reference signal and a second reference signal, where generation of the first reference signal depends on a first cell identifier, and generation of the second reference signal depends on a second cell identifier; the first cell identifier and the second cell identifier are different; The first reference signal and the second reference signal are sent by the same antenna port, and frequency domain resources occupied by the first reference signal and frequency domain resources occupied by the second reference signal at least partially overlap.

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