PT-RS related method and apparatus for node used for wireless communication

Abstract

A first processor operates a first physical channel and operates a target PT-RS for the first physical channel, wherein the operation refers to a transmitting operation or the operation refers to a receiving operation, the density of the target PT-RS depends on whether a first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel, the symbol type at least includes full-duplex and non-full-duplex, and the first parameter is a parameter used for a PT-RS and configured for a full-duplex symbol.

Description

A method and apparatus related to PT-RS in a node used for wireless communication

[0001] This application claims priority to a Chinese patent application filed with the Patent Office of China on February 7, 2024, with application number 202410176263.1 and invention name “A method and device related to PT-RS in a node used for wireless communication”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to a transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network. Background Art

[0003] In existing NR (New Radio) systems, spectrum resources are statically divided into FDD (Frequency Division Duplex) and TDD (Time Division Duplex) spectrum. For TDD spectrum, both base stations and user equipment (UE) operate in half-duplex mode. This half-duplex mode avoids self-interference and mitigates the impact of cross-link interference (CLI), but it also leads to reduced resource utilization and increased latency. To address these issues, supporting flexible duplex modes or variable link directions (uplink, downlink, or flexible) in TDD or FDD spectrum is a possible solution. The 3rd Generation Partnership Project (3GPP) has agreed to conduct research on duplex technologies, specifically subband non-overlapping full-duplex (SBFD) mode for gNBs (NR Node Bs). Optimizing system design accordingly is a key component of this research.

[0004] The design of PT-RS (Phase-Tracking Reference Signal) is an important aspect to ensure communication performance in wireless communications. Summary of the Invention

[0005] How to enhance PT-RS is an important issue that needs to be considered in the optimization of system design; the present application discloses a solution to the above problem. It should be noted that the present application can be applicable to a variety of wireless communication scenarios, such as scenarios using SBFD mode, scenarios using other types of full-duplex modes other than SBFD, scenarios using more flexible duplex modes, etc., and achieve similar technical effects. In addition, the use of a unified solution for different scenarios (including but not limited to scenarios using SBFD mode, scenarios using other types of full-duplex modes other than SBFD, and scenarios using more flexible duplex modes) can also help reduce hardware complexity and cost, or improve performance. 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] Where necessary, the interpretation of the terms in this application may refer to the description of the 3GPP specification protocols TS37 series and TS38 series.

[0007] The present application discloses a method in a first node for wireless communication, comprising:

[0008] operating a first physical channel and operating a target PT-RS for the first physical channel, wherein the operation is transmission or the operation is reception;

[0009] The density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0010] As an embodiment, the problem to be solved by the present application includes: how to enhance PT-RS in a system configured with full-duplex symbols.

[0011] As an embodiment, the problem to be solved by this application includes: how to optimize the density of PT-RS accordingly.

[0012] As an embodiment, the above method has the following benefits: it is conducive to implementing relevant configurations for determining the density of PT-RS in a differentiated manner according to different symbol types, so that PT-RS is more adaptable to the system configuration on the corresponding type of symbols.

[0013] As an embodiment, the benefits of the above method include: improving configuration flexibility and optimizing resource allocation.

[0014] As an embodiment, the advantages of the above method include: good compatibility with existing 3GPP protocols and small workload for standardization.

[0015] According to one aspect of the present application, the above method is characterized in that:

[0016] The second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0017] As an embodiment, the advantages of the above method include: high configuration flexibility.

[0018] As an embodiment, the above method has the following benefits: it is helpful to improve the utilization efficiency of PT-RS.

[0019] According to one aspect of the present application, the above method is characterized in that:

[0020] The density of the target PT-RS is a sampling density of the target PT-RS.

[0021] According to one aspect of the present application, the above method is characterized in that:

[0022] If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0023] As an embodiment, the above method has the following advantages: strong robustness.

[0024] As an embodiment, the above method has the following benefits: it is helpful to improve the utilization efficiency of PT-RS.

[0025] As an embodiment, the above method has the following advantages: it is helpful to save configuration signaling overhead while ensuring the use effect of UL PT-RS.

[0026] According to one aspect of the present application, the above method is characterized in that:

[0027] The density of the target PT-RS is a time domain density of the target PT-RS.

[0028] According to one aspect of the present application, the above method is characterized in that:

[0029] The density of the target PT-RS is a frequency domain density of the target PT-RS.

[0030] According to one aspect of the present application, the above method is characterized in that:

[0031] The symbol types only include full-duplex and non-full-duplex; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is not a full-duplex symbol; when a symbol is not a full-duplex symbol, this symbol is a non-full-duplex symbol.

[0032] According to one aspect of the present application, the above method is characterized in that:

[0033] The uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0034] According to one aspect of the present application, the above method is characterized in that:

[0035] The first physical channel is a PDSCH (Physical Downlink Shared CHannel), and the operation is receiving; the first node receives the target PT-RS.

[0036] According to one aspect of the present application, the above method is characterized in that:

[0037] The first physical channel is a PUSCH (Physical Uplink Shared CHannel), and the operation is sending; the first node sends the target PT-RS.

[0038] According to one aspect of the present application, the above method is characterized in that it includes:

[0039] determining whether a first information block is configured, the first information block including at least the first parameter;

[0040] According to one aspect of the present application, the above method is characterized in that it includes:

[0041] A first signaling is received, where the first signaling schedules the first physical channel.

[0042] The present application discloses a method in a second node for wireless communication, comprising:

[0043] operating a first physical channel and operating a target PT-RS for the first physical channel, wherein the operation is reception or the operation is transmission;

[0044] The density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0045] According to one aspect of the present application, the above method is characterized in that:

[0046] The second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0047] According to one aspect of the present application, the above method is characterized in that:

[0048] The density of the target PT-RS is a sampling density of the target PT-RS.

[0049] According to one aspect of the present application, the above method is characterized in that:

[0050] If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0051] According to one aspect of the present application, the above method is characterized in that:

[0052] The density of the target PT-RS is a time domain density of the target PT-RS.

[0053] According to one aspect of the present application, the above method is characterized in that:

[0054] The density of the target PT-RS is a frequency domain density of the target PT-RS.

[0055] According to one aspect of the present application, the above method is characterized in that:

[0056] The symbol types only include full-duplex and non-full-duplex; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is not a full-duplex symbol; when a symbol is not a full-duplex symbol, this symbol is a non-full-duplex symbol.

[0057] According to one aspect of the present application, the above method is characterized in that:

[0058] The uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0059] According to one aspect of the present application, the above method is characterized in that:

[0060] The first physical channel is a PDSCH, the operation is sending, and the second node sends the target PT-RS.

[0061] According to one aspect of the present application, the above method is characterized in that:

[0062] The first physical channel is a PUSCH, the operation is reception; and the second node receives the target PT-RS.

[0063] According to one aspect of the present application, the above method is characterized in that it includes:

[0064] A first signaling is sent, where the first signaling schedules the first physical channel.

[0065] The present application discloses a first node used for wireless communication, comprising:

[0066] A first processor operates a first physical channel and operates a target PT-RS for the first physical channel, wherein the operation is sending or the operation is receiving;

[0067] The density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0068] The present application discloses a second node used for wireless communication, comprising:

[0069] A second processor operates a first physical channel and operates a target PT-RS for the first physical channel, wherein the operation is sending or the operation is receiving;

[0070] The density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0072] FIG1 shows a processing flow chart of a first node according to an embodiment of the present application;

[0073] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0074] FIG3 shows a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0075] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0076] FIG5 shows a signal transmission flow chart according to an embodiment of the present application;

[0077] FIG6 shows a signal transmission flow chart according to an embodiment of the present application;

[0078] FIG7 is a schematic diagram illustrating that the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel according to one embodiment of the present application;

[0079] FIG8 shows a schematic diagram illustrating a mapping rule configured by a first parameter according to an embodiment of the present application;

[0080] FIG9 shows a schematic diagram illustrating a mapping rule configured by a second parameter according to an embodiment of the present application;

[0081] FIG10 is a schematic diagram illustrating that the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel according to one embodiment of the present application;

[0082] FIG11 is a schematic diagram illustrating a mapping rule configured by a first parameter according to an embodiment of the present application;

[0083] FIG12 is a schematic diagram illustrating a mapping rule configured by a second parameter according to an embodiment of the present application;

[0084] FIG13 is a schematic diagram illustrating a mapping rule configured by a first parameter according to an embodiment of the present application;

[0085] FIG14 is a schematic diagram illustrating a mapping rule configured by a second parameter according to an embodiment of the present application;

[0086] FIG15 shows a schematic diagram illustrating a first information block according to an embodiment of the present application;

[0087] FIG16 shows a schematic diagram illustrating a full-duplex symbol and a non-full-duplex symbol according to an embodiment of the present application;

[0088] FIG17 shows a structural block diagram of a processing device in a first node device according to an embodiment of the present application;

[0089] FIG18 shows a structural block diagram of a processing device in a second node device according to an embodiment of the present application. DETAILED DESCRIPTION

[0090] The technical solution of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

[0091] Example 1

[0092] Example 1 illustrates a processing flow chart of a first node according to an embodiment of the present application, as shown in FIG1 .

[0093] In embodiment 1, the first node in the present application operates a first physical channel and operates a target PT-RS for the first physical channel in step 101.

[0094] In embodiment 1, the operation is sending or the operation is receiving; the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0095] As an embodiment, the first node sends the first physical channel and sends the target PT-RS.

[0096] As an embodiment, the first physical channel is PUSCH; the sending of the first physical channel includes: sending at least one of a transport block (Transport Block(s)) or a CSI (Channel State Information) report (CSI report(s)) on the first physical channel.

[0097] As an embodiment, the first node receives the first physical channel and receives the target PT-RS.

[0098] As an embodiment, the first physical channel is PDSCH; the receiving the first physical channel includes: receiving a transport block on the first physical channel.

[0099] As an embodiment, the target PT-RS is for the first physical channel.

[0100] As an embodiment, the target PT-RS is for the first physical channel, including: the target PT-RS is on the first physical channel.

[0101] As an embodiment, the target PT-RS is for the first physical channel, including: the operational procedures of the target PT-RS are applied to the operation of the first physical channel.

[0102] As an embodiment, the target PT-RS is used to support phase noise compensation for the first physical channel.

[0103] As an embodiment, the first node may perform reception of the first physical channel based on the target PT-RS.

[0104] As an embodiment, the target PT-RS is operated on at least one PT-RS port.

[0105] As an embodiment, the first node sends the target PT-RS, and the first parameter is applicable to the transmission of the PT-RS on a full-duplex symbol.

[0106] As an embodiment, the first node receives the target PT-RS, and the first parameter is applicable to reception of the PT-RS on a full-duplex symbol.

[0107] As an embodiment, the first parameter is a higher layer parameter.

[0108] As an embodiment, the first parameter is an RRC layer parameter.

[0109] As an embodiment, the first parameter is in the information element (IE) configuring the PT-RS.

[0110] As an embodiment, the name of the first parameter includes timeDensity.

[0111] As an embodiment, the first parameter is a parameter used to configure the presence and time domain density of PT-RS as a function of the scheduled MCS (Modulation and Coding Scheme).

[0112] As an embodiment, the name of the first parameter includes frequencyDensity.

[0113] As an embodiment, the first parameter is a parameter used to configure the presence and frequency domain density of PT-RS as a function of scheduled bandwidth.

[0114] As an embodiment, the name of the first parameter includes sampleDensity.

[0115] As an embodiment, the first parameter is a parameter used to configure the sampling density of the PT-RS as a function of the scheduled bandwidth.

[0116] As an embodiment, the sampling density of the PT-RS includes: the number of PT-RS groups and the number of samples per PT-RS group (number of samples per PT-RS group).

[0117] As an embodiment, the number of transport blocks carried by the first physical channel is 1.

[0118] As an embodiment, the density of the target PT-RS includes at least one of the time domain density of the target PT-RS, the frequency domain density of the target PT-RS, and the sampling density of the target PT-RS.

[0119] As an embodiment, the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel, including:

[0120] The second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; the density of the target PT-RS is the sampling density of the target PT-RS.

[0121] As an embodiment, the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel, including:

[0122] If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS; the density of the target PT-RS is the time domain density of the target PT-RS.

[0123] As an embodiment, the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel, including:

[0124] If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS; the density of the target PT-RS is the frequency domain density of the target PT-RS.

[0125] As an embodiment, in the present application: the symbols allocated to the first physical channel are all symbols allocated to the first physical channel in the time domain.

[0126] As an embodiment, the at least one symbol allocated to the first physical channel is in the time domain.

[0127] As an embodiment, the time domain resource allocation field in the first signaling in the present application indicates the symbols allocated to the first physical channel.

[0128] As an embodiment, a symbol is a symbol in the time domain.

[0129] As an embodiment, a symbol is an OFDM (Orthogonal Frequency Division Multiplex) symbol.

[0130] As an embodiment, a symbol is a symbol in a slot.

[0131] As an embodiment, the first physical channel applies transform precoding.

[0132] As an embodiment, transform precoding is not enabled.

[0133] As an embodiment, the first node receives first signaling, and the first signaling schedules the first physical channel.

[0134] As a sub-embodiment of the above embodiment, the second node in this application sends the first signaling.

[0135] As an embodiment, the first signaling includes bits of control information.

[0136] As an embodiment, the first signaling is physical layer signaling.

[0137] As an embodiment, the first signaling is in DCI (Downlink control information) format.

[0138] As an embodiment, the first signaling is a DCI format for scheduling the first physical channel.

[0139] As an embodiment, all symbols allocated to the first physical channel are full-duplex symbols, or all symbols allocated to the first physical channel are non-full-duplex symbols.

[0140] As an embodiment, the symbol type of a full-duplex symbol is full-duplex, and the symbol type of a non-full-duplex symbol is non-full-duplex.

[0141] As an embodiment, the symbol types only include full-duplex and non-full-duplex; when a symbol is not a full-duplex symbol, the symbol is a non-full-duplex symbol.

[0142] As an embodiment, the symbol type also includes symbol types other than full-duplex and non-full-duplex.

[0143] As an embodiment, when a symbol is indicated by uplink and downlink TDD configuration signaling as downlink and can be used for uplink transmission, the symbol is a full-duplex symbol.

[0144] As an embodiment, the benefits of the above method include: improving uplink performance.

[0145] As an embodiment, when a symbol is indicated as uplink by uplink / downlink TDD configuration signaling, the symbol is a non-full-duplex symbol.

[0146] As an embodiment, when a symbol is configured to be usable for full-duplex operation, the symbol is a full-duplex symbol; when a symbol is configured not to be used for full-duplex operation, the symbol is a non-full-duplex symbol.

[0147] As an embodiment, when a symbol is configured to be usable for full-duplex operation, the symbol is a full-duplex symbol; when a symbol is not configured to be usable for full-duplex operation, the symbol is a non-full-duplex symbol.

[0148] As an embodiment, the symbols used for the SBFD operation belong to the symbols whose symbol type is full-duplex, and do not belong to the symbols whose symbol type is non-full-duplex.

[0149] As an embodiment, when the first physical channel is in a full-duplex time slot, the symbols allocated to the first physical channel are all full-duplex symbols.

[0150] As a sub-embodiment of the above embodiment, all symbols in a full-duplex time slot are full-duplex symbols.

[0151] As an embodiment, when the first physical channel is in a non-full-duplex time slot, the symbols allocated to the first physical channel are all non-full-duplex symbols.

[0152] As a sub-embodiment of the above embodiment, all symbols in a non-full-duplex time slot are non-full-duplex symbols.

[0153] Example 2

[0154] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2 . FIG2 illustrates a network architecture 200 of a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system. The 5G NR / LTE / LTE-A network architecture 200 may be referred to as a 5G System (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 includes at least one of a UE (User Equipment) 201, a RAN (Radio Access Network) 202, a 5G Core Network (5G Core Network) / EPC (Evolved Packet Core) 210, a Home Subscriber Server (HSS) / UDM (Unified Data Management) 220, and an Internet service 230. 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmitter Receiver Point), or some other appropriate terminology. Node 203 provides an access point to 5GC / EPC 210 for UE 201.Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. 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 terminology. Node 203 connects to the 5GC / EPC 210 via the S1 / NG interface. The 5GC / EPC 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which itself is connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet Services 230. The Internet Services 230 includes the operator's corresponding Internet Protocol services, which may include the Internet, Intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0155] As an embodiment, the UE201 corresponds to the first node in this application.

[0156] As an embodiment, the gNB203 corresponds to the second node in this application.

[0157] As an embodiment, the UE201 corresponds to the first node in this application, and the gNB203 corresponds to the second node in this application.

[0158] As an embodiment, the gNB203 is a macrocellular base station.

[0159] As an embodiment, the gNB203 is a micro cell base station.

[0160] As an embodiment, the gNB203 is a picocell (PicoCell) base station.

[0161] As an embodiment, the gNB203 is a home base station (Femtocell).

[0162] As an embodiment, the gNB203 is a base station device that supports large delay difference.

[0163] As an embodiment, the gNB203 is a flying platform device.

[0164] As an embodiment, the gNB203 is a satellite device.

[0165] Example 3

[0166] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for a first communication node device (a UE, a gNB, or an RSU (Roadside Unit) in a V2X (Vehicle to Everything) network, an onboard device, or an onboard communication module) and a second communication node device (a gNB, a UE, or an RSU in a V2X network, an onboard device, or an onboard communication module), or the control plane 300 between two UEs using three layers: Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3). L1 is the lowest layer and implements various PHY (physical layer) signal processing functions. L1 will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through PHY301. L2 305 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 communication 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 support for inter-zone mobility of the first communication node device between the second communication node devices. 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 due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first and second communication node devices in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows and data radio bearers (DRBs) to support service diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an 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.).

[0167] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0168] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0169] As an embodiment, the first information block in the present application is generated in the RRC sublayer 306.

[0170] As an embodiment, the first signaling in this application is generated by the PHY301.

[0171] As an embodiment, the first physical channel in this application is generated by the PHY351.

[0172] Example 4

[0173] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 4. 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.

[0174] The first communications 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 .

[0175] 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 .

[0176] During 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 L2 layer functionality. During transmission from the first communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for 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 the L1 layer (i.e., the physical layer). The transmit processor 416 performs coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as mapping signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time 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 transmit analog precoding / beamforming operations 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, which is then provided to a different antenna 420.

[0177] During 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 via 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, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and reference signal are demultiplexed by the receive processor 456, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communications 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 the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the first communications device 410 to the second communications device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 layer for L3 processing.

[0178] During transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functionality at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0179] During transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the reception functionality at the second communication device 450 described for transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. The controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the second communication device 450 to the first communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0180] As an embodiment, the first node in the present application includes the second communication device 450 , and the second node in the present application includes the first communication device 410 .

[0181] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a relay node.

[0182] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a base station device.

[0183] As a sub-embodiment of the above embodiment, the first node is a relay node, and the second node is a base station device.

[0184] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 at least: operates a first physical channel and operates a target PT-RS for the first physical channel, the operation being transmission or reception; wherein the density of the target PT-RS depends on whether a first parameter is configured and a symbol type of at least one symbol assigned to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for the PT-RS for full-duplex symbols.

[0185] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0186] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: operating a first physical channel and operating a target PT-RS for the first physical channel, the operation being sending or the operation being receiving; wherein the density of the target PT-RS depends on whether a first parameter is configured and a symbol type of at least one symbol assigned to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0187] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0188] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 device at least: operates a first physical channel and operates a target PT-RS for the first physical channel, the operation being reception or the operation being transmission; wherein the density of the target PT-RS depends on whether a first parameter is configured and a symbol type of at least one symbol assigned to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for the PT-RS for full-duplex symbols.

[0189] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0190] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: operating a first physical channel and operating a target PT-RS for the first physical channel, the operation being reception or the operation being transmission; wherein the density of the target PT-RS depends on whether a first parameter is configured and a symbol type of at least one symbol assigned to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0191] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0192] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first signaling in this application.

[0193] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the first signaling in this application.

[0194] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the uplink and downlink TDD configuration signaling in this application.

[0195] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the uplink and downlink TDD configuration signaling in this application.

[0196] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first information block in the present application.

[0197] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the first information block in this application.

[0198] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first physical channel in this application.

[0199] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the first physical channel in this application.

[0200] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the first physical channel in this application.

[0201] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller / processor 475, and the memory 476} is used to receive the first physical channel in this application.

[0202] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the target PT-RS in this application.

[0203] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, and the memory 476} is used to send the target PT-RS in this application.

[0204] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the target PT-RS in this application.

[0205] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475, and the memory 476} is used to receive the target PT-RS in this application.

[0206] Example 5

[0207] Embodiment 5 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG5 . In FIG5 , the first node U1 and the second node U2 communicate via an air interface. In FIG5 , the steps in the dotted box F1 are optional.

[0208] The first node U1 receives the first signaling in step S511; and receives the first physical channel and the target PT-RS for the first physical channel in step S512.

[0209] The second node U2 sends a first signaling in step S521; and sends a first physical channel and a target PT-RS for the first physical channel in step S522.

[0210] In embodiment 5, the first signaling schedules the first physical channel, and the first physical channel is PDSCH; the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0211] As a sub-embodiment of Example 5, the second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0212] As a sub-embodiment of Example 5, if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0213] As an embodiment, the first signaling is in DCI format, and the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated; the above features can be combined with embodiment 5 and its sub-embodiments.

[0214] As an embodiment, the first node U1 is the first node in this application.

[0215] As an embodiment, the second node U2 is the second node in this application.

[0216] As an embodiment, the first node U1 is a UE.

[0217] As an embodiment, the second node U2 is a base station.

[0218] As an embodiment, the air interface between the second node U2 and the first node U1 is a Uu interface.

[0219] As an embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

[0220] As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0221] As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a satellite device and a user equipment.

[0222] As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a relay device and a user equipment.

[0223] As an embodiment, the second node U1 receives the uplink and downlink TDD configuration signaling.

[0224] As an embodiment, the second node U2 sends the uplink and downlink TDD configuration signaling.

[0225] As an embodiment, the uplink / downlink TDD configuration signaling is sent / received before the first signaling.

[0226] As an embodiment, the first parameter is configured, including: the first parameter is configured by the second node to the first node.

[0227] As an embodiment, the first parameter is not configured, including: the second node does not configure the first parameter to the first node.

[0228] As an embodiment, the second parameter is configured, including: the second parameter is configured by the second node to the first node.

[0229] As an embodiment, the second parameter is not configured, including: the second node does not configure the second parameter to the first node.

[0230] As an embodiment, the configuration of the first parameter occurs before the sending / receiving of the first signaling.

[0231] As an embodiment, the configuration of the second parameter occurs before the sending / receiving of the first signaling.

[0232] As an embodiment, the first parameter, the second parameter, and the uplink / downlink TDD configuration signaling may be sent / received in any order.

[0233] As an embodiment, the steps in the dashed box F1 exist.

[0234] As an embodiment, the steps in the dashed box F1 do not exist.

[0235] Example 6

[0236] Embodiment 6 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG6 . In FIG6 , the first node U3 and the second node U4 communicate via an air interface. In FIG6 , the steps in the dotted box F2 are optional.

[0237] The first node U3 receives the first signaling in step S611; and sends the first physical channel and the target PT-RS for the first physical channel in step S612.

[0238] The second node U4 sends a first signaling in step S621; receives a first physical channel and receives a target PT-RS for the first physical channel in step S622.

[0239] In embodiment 6, the first signaling schedules the first physical channel, and the first physical channel is PUSCH; the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0240] As a sub-embodiment of Example 6, the second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0241] As a sub-embodiment of Example 6, if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0242] As an embodiment, the first signaling is in DCI format, and the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated; the above features can be combined with embodiment 6 and its sub-embodiments.

[0243] As an embodiment, the first node U3 is the first node in this application.

[0244] As an embodiment, the second node U4 is the second node in this application.

[0245] As an embodiment, the first node U3 is a UE.

[0246] As an embodiment, the second node U4 is a base station.

[0247] As an embodiment, the air interface between the second node U4 and the first node U3 is a Uu interface.

[0248] As an embodiment, the air interface between the second node U4 and the first node U3 includes a cellular link.

[0249] As an embodiment, the air interface between the second node U4 and the first node U3 includes a wireless interface between a base station device and a user equipment.

[0250] As an embodiment, the air interface between the second node U4 and the first node U3 includes a wireless interface between a satellite device and a user equipment.

[0251] As an embodiment, the air interface between the second node U4 and the first node U3 includes a wireless interface between a relay device and a user equipment.

[0252] As an embodiment, the second node U3 receives the uplink and downlink TDD configuration signaling.

[0253] As an embodiment, the second node U4 sends the uplink and downlink TDD configuration signaling.

[0254] As an embodiment, the uplink / downlink TDD configuration signaling is sent / received before the first signaling.

[0255] As an embodiment, the first parameter is configured, including: the first parameter is configured by the second node to the first node.

[0256] As an embodiment, the first parameter is not configured, including: the second node does not configure the first parameter to the first node.

[0257] As an embodiment, the second parameter is configured, including: the second parameter is configured by the second node to the first node.

[0258] As an embodiment, the second parameter is not configured, including: the second node does not configure the second parameter to the first node.

[0259] As an embodiment, the configuration of the first parameter occurs before the sending / receiving of the first signaling.

[0260] As an embodiment, the configuration of the second parameter occurs before the sending / receiving of the first signaling.

[0261] As an embodiment, the first parameter, the second parameter, and the uplink / downlink TDD configuration signaling may be sent / received in any order.

[0262] As an embodiment, the steps in the dashed box F2 exist.

[0263] As an embodiment, the steps in the dashed box F2 do not exist.

[0264] Example 7

[0265] Embodiment 7 illustrates a schematic diagram illustrating that the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel according to an embodiment of the present application, as shown in FIG7 .

[0266] In Example 7, the second parameter is a parameter for PT-RS, and the second parameter is configured; when at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; when the symbols allocated to the first physical channel are all non-full-duplex symbols or the first parameter group is not configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0267] As a sub-embodiment of Embodiment 7, the density of the target PT-RS is a sampling density of the target PT-RS.

[0268] As an embodiment, the density of the target PT-RS is the sampling density of the target PT-RS; the mapping rule configured by the first parameter is: a function of the mapping of the scheduled bandwidth configured by the first parameter to the sampling density of the PT-RS.

[0269] As an embodiment, the density of the target PT-RS is the sampling density of the target PT-RS; the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the sampling density of PT-RS configured by the second parameter.

[0270] As an embodiment, for the target PT-RS, the corresponding scheduled bandwidth is the bandwidth scheduled for the first physical channel.

[0271] As an embodiment, the sampling density of the PT-RS includes a PT-RS group pattern.

[0272] As an embodiment, the sampling density of PT-RS includes two aspects: the number of PT-RS groups and the number of samples in each PT-RS group.

[0273] As an embodiment, when transform precoding is enabled: both the number of PT-RS groups and the number of samples per PT-RS group are used to indicate the mapping of PT-RS samples in symbols.

[0274] As an embodiment, a PT-RS group is a unit of allocation consisting of consecutive DFT-s-OFDM samples between transform precoding.

[0275] As an embodiment, there are P1 PT-RS groups in an OFDM symbol before transform precoding, and each PT-RS group includes P2 PT-RS samples; wherein the P1 is equal to the number of PT-RS groups, and the P2 is equal to the number of samples in each PT-RS group.

[0276] As an embodiment, the number of PT-RS samples in one OFDM symbol before transform precoding is equal to the product of the number of PT-RS groups and the number of samples per PT-RS group.

[0277] As an embodiment, the second parameter is a higher layer parameter.

[0278] As an embodiment, the second parameter is an RRC layer parameter.

[0279] As an embodiment, the second parameter is in the information element (IE) configuring the PT-RS.

[0280] As an embodiment, the name of the second parameter includes timeDensity.

[0281] As an embodiment, the second parameter is a parameter used to configure the presence and time domain density of PT-RS as a function of the scheduled MCS.

[0282] As an embodiment, the name of the second parameter includes frequencyDensity.

[0283] As an embodiment, the second parameter is a parameter used to configure the presence and frequency domain density of PT-RS as a function of the scheduled bandwidth.

[0284] As an embodiment, the name of the second parameter includes sampleDensity.

[0285] As an embodiment, the second parameter is a parameter used to configure the sampling density of the PT-RS as a function of the scheduled bandwidth.

[0286] As an embodiment, the first parameter is not the second parameter.

[0287] As an embodiment, the first parameter and the second parameter are configured separately.

[0288] As an embodiment, the first parameter and the second parameter are in different information elements.

[0289] As an embodiment, the second parameter is a parameter for at least a non-full-duplex symbol.

[0290] Example 8

[0291] Example 8 illustrates a schematic diagram of a mapping rule configured by the first parameter according to an embodiment of the present application, as shown in FIG8 .

[0292] In embodiment 8, the density of the target PT-RS is a sampling density of the target PT-RS; and the mapping rule configured by the first parameter includes:

[0293] When the scheduled bandwidth is greater than or equal to sampling density threshold #0 and less than sampling density threshold #1, the number of PT-RS groups is 2, and the number of samples for each PT-RS group is 2; when the scheduled bandwidth is greater than or equal to sampling density threshold #1 and less than sampling density threshold #2, the number of PT-RS groups is 2, and the number of samples for each PT-RS group is 4; when the scheduled bandwidth is greater than or equal to sampling density threshold #2 and less than sampling density threshold #3, the number of PT-RS groups is 4, and the number of samples for each PT-RS group is 2; when the scheduled bandwidth is greater than or equal to sampling density threshold #3 and less than sampling density threshold #4, the number of PT-RS groups is 4, and the number of samples for each PT-RS group is 4; when the scheduled bandwidth is greater than or equal to sampling density threshold #4, the number of PT-RS groups is 8, and the number of samples for each PT-RS group is 4;

[0294] Among them, the sampling density threshold #0, the sampling density threshold #1, the sampling density threshold #2, the sampling density threshold #3 and the sampling density threshold #4 are all configured by the first parameter.

[0295] As a sub-embodiment of the above embodiment, if the sampling density threshold #j is equal to the sampling density threshold #(j+1), the row in which both the sampling density threshold #j and the sampling density threshold #(j+1) appear in the table of Example 8 is not enabled; the j is any one of 0, 1, 2, and 3.

[0296] As a sub-embodiment of the above embodiment, when the scheduled bandwidth is less than the sampling density threshold #0 and the sampling density threshold #0 is greater than 1, the first node assumes that no PT-RS exists.

[0297] As an embodiment, the sampling density threshold #0 is one of 1 to 276, the sampling density threshold #1 is one of 1 to 276, the sampling density threshold #2 is one of 1 to 276, the sampling density threshold #3 is one of 1 to 276, and the sampling density threshold #4 is one of 1 to 276.

[0298] As an embodiment, the sampling density threshold #j is not greater than the sampling density threshold #(j+1), where j is any one of 0, 1, 2, and 3.

[0299] Example 9

[0300] Embodiment 9 illustrates a schematic diagram illustrating a mapping rule configured by the second parameter according to an embodiment of the present application, as shown in FIG9 .

[0301] In embodiment 9, the density of the target PT-RS is a sampling density of the target PT-RS; and the mapping rule configured by the second parameter includes:

[0302] When the scheduled bandwidth is greater than or equal to sampling density threshold #5 and less than sampling density threshold #6, the number of PT-RS groups is 2, and the number of samples for each PT-RS group is 2; when the scheduled bandwidth is greater than or equal to sampling density threshold #6 and less than sampling density threshold #7, the number of PT-RS groups is 2, and the number of samples for each PT-RS group is 4; when the scheduled bandwidth is greater than or equal to sampling density threshold #7 and less than sampling density threshold #8, the number of PT-RS groups is 4, and the number of samples for each PT-RS group is 2; when the scheduled bandwidth is greater than or equal to sampling density threshold #8 and less than sampling density threshold #9, the number of PT-RS groups is 4, and the number of samples for each PT-RS group is 4; when the scheduled bandwidth is greater than or equal to sampling density threshold #9, the number of PT-RS groups is 8, and the number of samples for each PT-RS group is 4;

[0303] Among them, the sampling density threshold #5, the sampling density threshold #6, the sampling density threshold #7, the sampling density threshold #8 and the sampling density threshold #9 are all configured by the second parameter.

[0304] As a sub-embodiment of the above embodiment, if the sampling density threshold #j is equal to the sampling density threshold #(j+1), the row in which both the sampling density threshold #j and the sampling density threshold #(j+1) appear in the table of Example 9 is not enabled; the j is any one of 5, 6, 7, and 8.

[0305] As a sub-embodiment of the above embodiment, when the scheduled bandwidth is less than the sampling density threshold #5 and the sampling density threshold #5 is greater than 1, the first node assumes that no PT-RS exists.

[0306] As an embodiment, the sampling density threshold #5 is one of 1 to 276, the sampling density threshold #6 is one of 1 to 276, the sampling density threshold #7 is one of 1 to 276, the sampling density threshold #8 is one of 1 to 276, and the sampling density threshold #9 is one of 1 to 276.

[0307] As an embodiment, the sampling density threshold #j is not greater than the sampling density threshold #(j+1), where j is any one of 5, 6, 7, and 8.

[0308] Example 10

[0309] Embodiment 10 illustrates a schematic diagram illustrating that the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel according to an embodiment of the present application, as shown in FIG10 .

[0310] In embodiment 10, if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0311] As an embodiment, the second parameter is a parameter other than the first parameter and is used for PT-RS.

[0312] As an embodiment, the second parameter is a parameter other than the first parameter, and its name includes timeDensity.

[0313] As an embodiment, the second parameter is a parameter other than the first parameter, and is used to configure the presence and time domain density of PT-RS as a function of the scheduled MCS.

[0314] As an embodiment, the second parameter is a parameter other than the first parameter, and its name includes frequencyDensity.

[0315] As an embodiment, the second parameter is a parameter other than the first parameter, and is used to configure the presence and frequency domain density of PT-RS as a function of the scheduled bandwidth.

[0316] As an embodiment, the second parameter is a parameter other than the first parameter, and its name includes sampleDensity.

[0317] As an embodiment, the second parameter is a parameter other than the first parameter, and is used to configure the sampling density of PT-RS as a function of the scheduled bandwidth.

[0318] As an embodiment, the density of the target PT-RS is the time domain density of the target PT-RS; the mapping rule configured by the first parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the first parameter.

[0319] As an embodiment, the density of the target PT-RS is the time domain density of the target PT-RS; the mapping rule configured by the second parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the second parameter.

[0320] As an embodiment, for the target PT-RS, the corresponding scheduled MCS is the MCS indicated by the scheduling signaling of the first physical channel.

[0321] As an embodiment, for the target PT-RS, the corresponding scheduled MCS is the MCS of the scheduled codeword.

[0322] As an embodiment, for the target PT-RS, the corresponding scheduled MCS is the maximum MCS among the MCSs of the scheduled codewords.

[0323] As an embodiment, the scheduled codeword (codeword(s)) is a codeword mapped to the first physical channel.

[0324] As an embodiment, the density of the target PT-RS is the time domain density of the target PT-RS; the density of the target PT-RS is a default value, including: the density of the target PT-RS is 1.

[0325] As an embodiment, the density of the target PT-RS is the frequency domain density of the target PT-RS; the mapping rule configured by the first parameter is: a function of the mapping of the scheduled bandwidth configured by the first parameter to the frequency domain density of the PT-RS.

[0326] As an embodiment, the density of the target PT-RS is the frequency domain density of the target PT-RS; the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the second parameter.

[0327] As an embodiment, for the target PT-RS, the corresponding scheduled bandwidth is the bandwidth scheduled for the first physical channel.

[0328] As an embodiment, the density of the target PT-RS is the frequency domain density of the target PT-RS; the density of the target PT-RS is a default value, including: the density of the target PT-RS is 2.

[0329] As an embodiment, the second parameter is a higher layer parameter.

[0330] As an embodiment, the second parameter is an RRC layer parameter.

[0331] As an embodiment, the second parameter is in the information element (IE) configuring the PT-RS.

[0332] As an embodiment, the name of the second parameter includes timeDensity.

[0333] As an embodiment, the second parameter is a parameter used to configure the presence and time domain density of PT-RS as a function of the scheduled MCS.

[0334] As an embodiment, the name of the second parameter includes frequencyDensity.

[0335] As an embodiment, the second parameter is a parameter used to configure the presence and frequency domain density of PT-RS as a function of the scheduled bandwidth.

[0336] As an embodiment, the name of the second parameter includes sampleDensity.

[0337] As an embodiment, the second parameter is a parameter used to configure the sampling density of the PT-RS as a function of the scheduled bandwidth.

[0338] As an embodiment, the first parameter is not the second parameter.

[0339] As an embodiment, the first parameter and the second parameter are configured separately.

[0340] As an embodiment, the first parameter and the second parameter are in different information elements.

[0341] As an embodiment, the second parameter is a parameter for at least a non-full-duplex symbol.

[0342] Example 11

[0343] Example 11 illustrates a schematic diagram of a mapping rule configured by the first parameter according to an embodiment of the present application, as shown in FIG11 .

[0344] In embodiment 11, the density of the target PT-RS is a time domain density of the target PT-RS; and the mapping rule configured by the first parameter includes:

[0345] When the scheduled MCS is less than the time domain density threshold #1, the PT-RS does not exist; when the scheduled MCS is greater than or equal to the time domain density threshold #1 and less than the time domain density threshold #2, the time domain density of the PT-RS is 4; when the scheduled MCS is greater than or equal to the time domain density threshold #2 and less than the time domain density threshold #3, the time domain density of the PT-RS is 2; when the scheduled MCS is greater than or equal to the time domain density threshold #3 and less than the time domain density threshold #4, the time domain density of the PT-RS is 1;

[0346] Among them, the time domain density threshold #1, the time domain density threshold #2 and the time domain density threshold #3 are configured by the first parameter.

[0347] As a sub-embodiment of the above embodiment, if the time domain density threshold #j is equal to the time domain density threshold #(j+1), the time domain density of the PT-RS corresponding to the row where both the time domain density threshold #j and the time domain density threshold #(j+1) appear in the table of Example 11 is not enabled; the j is any one of 1, 2, and 3.

[0348] As an embodiment, the time-domain density threshold #4 is assumed to be the maximum value in the value range of the time-domain density threshold #1.

[0349] As an embodiment, the time domain density threshold #4 is equal to: the maximum valid index in the adopted MCS table plus 1.

[0350] As an embodiment, the time domain density threshold #1 is one of 0 to 29, the time domain density threshold #2 is one of 0 to 29, the time domain density threshold #3 is one of 0 to 29, and the time domain density threshold #4 is 29.

[0351] As an embodiment, the time domain density threshold #1 is one of 0 to 28, the time domain density threshold #2 is one of 0 to 28, the time domain density threshold #3 is one of 0 to 28, and the time domain density threshold #4 is 28.

[0352] As an embodiment, the time domain density threshold #1 is one of 0 to 27, the time domain density threshold #2 is one of 0 to 27, the time domain density threshold #3 is one of 0 to 27, and the time domain density threshold #4 is 27.

[0353] As an embodiment, the time domain density threshold #j is not greater than the time domain density threshold #(j+1), where j is any one of 1, 2, and 3.

[0354] As an embodiment, the time domain density of the PT-RS indicates the interval between symbols to which the PT-RS is mapped in the time domain.

[0355] As an embodiment, the time domain density of PT-RS is k, and the symbol counted k times from a symbol mapped to PT-RS is the next symbol mapped to PT-RS; k is any one of 1, 2, and 4.

[0356] As a sub-embodiment of the above embodiment, if a DM-RS is encountered during the counting process, the counting is restarted for k times after reset.

[0357] Example 12

[0358] Example 12 illustrates a schematic diagram of a mapping rule configured by the second parameter according to an embodiment of the present application, as shown in FIG12 .

[0359] In embodiment 12, the density of the target PT-RS is a time domain density of the target PT-RS; and the mapping rule configured by the second parameter includes:

[0360] When the scheduled MCS is less than the time domain density threshold #5, the PT-RS does not exist; when the scheduled MCS is greater than or equal to the time domain density threshold #5 and less than the time domain density threshold #6, the time domain density of the PT-RS is 4; when the scheduled MCS is greater than or equal to the time domain density threshold #6 and less than the time domain density threshold #7, the time domain density of the PT-RS is 2; when the scheduled MCS is greater than or equal to the time domain density threshold #7 and less than the time domain density threshold #8, the time domain density of the PT-RS is 1;

[0361] Among them, the time domain density threshold #5, the time domain density threshold #6 and the time domain density threshold #7 are configured by the second parameter.

[0362] As a sub-embodiment of the above embodiment, if the time domain density threshold #i is equal to the time domain density threshold #(i+1), the time domain density of the PT-RS corresponding to the row where both the time domain density threshold #i and the time domain density threshold #(i+1) appear in the table of Example 12 is not enabled; the i is any one of 5, 6, and 7.

[0363] As an embodiment, the time-domain density threshold #8 is assumed to be the maximum value in the value range of the time-domain density threshold #5.

[0364] As an embodiment, the time domain density threshold #8 is equal to: the maximum valid index in the adopted MCS table plus 1.

[0365] As an embodiment, the time domain density threshold #5 is one of 0 to 29, the time domain density threshold #6 is one of 0 to 29, the time domain density threshold #7 is one of 0 to 29, and the time domain density threshold #8 is 29.

[0366] As an embodiment, the time domain density threshold #5 is one of 0 to 28, the time domain density threshold #6 is one of 0 to 28, the time domain density threshold #7 is one of 0 to 28, and the time domain density threshold #8 is 28.

[0367] As an embodiment, the time domain density threshold #5 is one of 0 to 27, the time domain density threshold #6 is one of 0 to 27, the time domain density threshold #7 is one of 0 to 27, and the time domain density threshold #8 is 27.

[0368] As an embodiment, the time domain density threshold #i is not greater than the time domain density threshold #(i+1), where i is any one of 5, 6, and 7.

[0369] As an embodiment, the time domain density of the PT-RS indicates the interval between symbols to which the PT-RS is mapped in the time domain.

[0370] As an embodiment, the time domain density of PT-RS is k, and the symbol counted k times from a symbol mapped to PT-RS is the next symbol mapped to PT-RS; k is any one of 1, 2, and 4.

[0371] As a sub-embodiment of the above embodiment, if a DM-RS is encountered during the counting process, the counting is restarted for k times after reset.

[0372] Example 13

[0373] Example 13 illustrates a schematic diagram of a mapping rule configured by the first parameter according to an embodiment of the present application, as shown in FIG13 .

[0374] In embodiment 13, the density of the target PT-RS is a frequency domain density of the target PT-RS; and the mapping rule configured by the first parameter includes:

[0375] When the scheduled bandwidth is less than the frequency domain density threshold #0, the PT-RS does not exist. When the scheduled bandwidth is greater than or equal to the frequency domain density threshold #0 and less than the frequency domain density threshold #1, the frequency domain density of the PT-RS is 2. When the scheduled bandwidth is greater than or equal to the frequency domain density threshold #1, the frequency domain density of the PT-RS is 4.

[0376] The frequency domain density threshold #0 and the frequency domain density threshold #1 are configured by the first parameter.

[0377] As a sub-embodiment of the above embodiment, if the frequency domain density threshold #0 is equal to the frequency domain density threshold #1, the frequency domain density of the PT-RS corresponding to the row where both the frequency domain density threshold #0 and the frequency domain density threshold #1 appear in the table of Example 13 is not enabled.

[0378] As an embodiment, the frequency domain density threshold #0 is one of 1 to 276, and the frequency domain density threshold #1 is one of 1 to 276.

[0379] As an embodiment, the frequency domain density threshold #0 is not greater than the frequency domain density threshold #1.

[0380] As an embodiment, the frequency domain density of the PT-RS indicates the interval between RBs (Resource Blocks) to which the PT-RS is mapped in the frequency domain.

[0381] As an embodiment, the frequency domain density of PT-RS is d; from the frequency domain point of view, PT-RS is mapped once every d RBs; and d is either 2 or 4.

[0382] As an embodiment, the frequency domain density of PT-RS is d, and the RB counted d times from an RB to which PT-RS is mapped is the next RB to which PT-RS is mapped; d is either 2 or 4.

[0383] Example 14

[0384] Example 14 illustrates a schematic diagram of a mapping rule configured by the second parameter according to an embodiment of the present application, as shown in FIG14 .

[0385] In embodiment 14, the density of the target PT-RS is a frequency domain density of the target PT-RS; and the mapping rule configured by the second parameter includes:

[0386] When the scheduled bandwidth is less than the frequency domain density threshold #2, the PT-RS does not exist. When the scheduled bandwidth is greater than or equal to the frequency domain density threshold #2 and less than the frequency domain density threshold #3, the frequency domain density of the PT-RS is 2. When the scheduled bandwidth is greater than or equal to the frequency domain density threshold #3, the frequency domain density of the PT-RS is 4.

[0387] The frequency domain density threshold #2 and the frequency domain density threshold #3 are configured by the second parameter.

[0388] As a sub-embodiment of the above embodiment, if the frequency domain density threshold #2 is equal to the frequency domain density threshold #3, the frequency domain density of the PT-RS corresponding to the row where both the frequency domain density threshold #2 and the frequency domain density threshold #3 appear in the table of Example 14 is not enabled.

[0389] As an embodiment, the frequency domain density threshold #2 is one of 1 to 276, and the frequency domain density threshold #3 is one of 1 to 276.

[0390] As an embodiment, the frequency domain density threshold #2 is not greater than the frequency domain density threshold #3.

[0391] As an embodiment, the frequency domain density of the PT-RS indicates the interval between RBs to which the PT-RS is mapped in the frequency domain.

[0392] As an embodiment, the frequency domain density of PT-RS is d; from the frequency domain point of view, PT-RS is mapped once every d RBs; and d is either 2 or 4.

[0393] As an embodiment, the frequency domain density of PT-RS is d, and the RB counted d times from an RB to which PT-RS is mapped is the next RB to which PT-RS is mapped; d is either 2 or 4.

[0394] Example 15

[0395] Embodiment 15 illustrates a schematic diagram of a first information block according to an embodiment of the present application, as shown in FIG15 .

[0396] In embodiment 15, the first node determines whether a first information block is configured, and the first information block includes at least the first parameter.

[0397] As an embodiment, the first information block includes higher layer parameters.

[0398] As an embodiment, the first information block includes RRC layer parameters.

[0399] As an embodiment, the first information block includes an information element for configuring PT-RS.

[0400] As an embodiment, the first information block is the information element to which the first parameter belongs.

[0401] As an embodiment, the name of the first information block includes PTRS-DownlinkConfig.

[0402] As an embodiment, the name of the first information block includes PTRS-UplinkConfig.

[0403] As an embodiment, the first information block is configured, and the first information block is configured by the second node to the first node.

[0404] As an embodiment, when the first information block is not configured, the first parameter is not configured.

[0405] As an embodiment, when the first node does not receive the first information block, the first information block is not configured.

[0406] As an embodiment, when the first node receives the first information block but the first information block does not include configuration information of the first parameter, the first parameter is not configured.

[0407] As an embodiment, the first information block is the first parameter.

[0408] As an embodiment, the first node determines whether the first parameter is configured.

[0409] Example 16

[0410] Embodiment 16 illustrates a schematic diagram of full-duplex symbols and non-full-duplex symbols according to an embodiment of the present application, as shown in FIG16 .

[0411] In embodiment 16, when a symbol is indicated as downlink by uplink / downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink / downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0412] As an embodiment, the symbols indicated as downlink by the uplink / downlink TDD configuration signaling and available for uplink transmission are full-duplex symbols.

[0413] As an embodiment, in combination with the above features, the method disclosed in the present application is conducive to improving the utilization efficiency of PT-RS for symbols indicated as downlink by the uplink and downlink TDD configuration signaling and available for uplink transmission.

[0414] As an embodiment, any full-duplex symbol is a symbol indicated as a downlink symbol by the uplink / downlink TDD configuration signaling and can be used for uplink transmission.

[0415] As an embodiment, whether a flexible symbol is a full-duplex symbol is configurable.

[0416] As an embodiment, whether a flexible symbol is a full-duplex symbol is configured by RRC signaling.

[0417] As an embodiment, there is one flexible symbol configured as a full-duplex symbol.

[0418] As an embodiment, a symbol indicated as downlink by the uplink / downlink TDD configuration signaling and available for uplink transmission is indicated as downlink by the uplink / downlink TDD configuration signaling, and this symbol can be used for uplink transmission.

[0419] As an embodiment, there is at least one symbol indicated as a downlink symbol by the uplink / downlink TDD configuration signaling that is not a full-duplex symbol.

[0420] As an embodiment, whether a symbol indicated as a downlink symbol by the uplink / downlink TDD configuration signaling is a full-duplex symbol is configurable.

[0421] As an embodiment, whether a downlink symbol indicated by the uplink and downlink TDD configuration signaling is a full-duplex symbol is configured by RRC signaling.

[0422] As an embodiment, the symbols indicated by the uplink / downlink TDD configuration signaling as downlink symbols and unavailable for uplink transmission are not full-duplex symbols.

[0423] As an embodiment, symbols indicated as uplink by the uplink / downlink TDD configuration signaling are not available for downlink transmission.

[0424] As an embodiment, the signal that can be used for uplink transmission includes: at least being used for PUSCH (Physical Uplink Shared CHannel, physical uplink shared channel) transmission (transmission(s)).

[0425] As an embodiment, combined with the above features, the method disclosed in this application is conducive to significantly improving the uplink capacity of the system.

[0426] As an embodiment, the signal that can be used for uplink transmission includes: at least being used for PUCCH (Physical Uplink Control CHannel, physical uplink control channel) transmission (transmission(s)).

[0427] As an embodiment, the data that can be used for uplink transmission includes: at least being used for PUSCH and PUCCH transmission.

[0428] As an embodiment, the signal that can be used for uplink transmission includes: at least one of PUSCH transmission, PUCCH transmission, PRACH (Physical Random Access CHannel) transmission (transmission(s)) and SRS (Sounding Reference Signal) transmission (transmission(s)).

[0429] As an embodiment, the signal that can be used for uplink transmission includes: signal that can be used for at least two of PUSCH transmission, PUCCH transmission, PRACH transmission and SRS transmission.

[0430] As an embodiment, the signal that can be used for uplink transmission includes: signal that can be used for at least three of PUSCH transmission, PUCCH transmission, PRACH transmission and SRS transmission.

[0431] As an embodiment, the signal that can be used for uplink transmission includes: signal that can be used for PUSCH transmission, PUCCH transmission, PRACH transmission and SRS transmission.

[0432] As an embodiment, the signal that can be used for uplink transmission includes: signal that can be used for UL-SCH (Uplink Shared Channel(s)) transmission.

[0433] As an embodiment, the uplink / downlink TDD (Time Division Duplex) configuration signaling is signaling indicating the link direction of the symbol.

[0434] As an embodiment, the uplink and downlink TDD configuration signaling indicates at least one symbol as downlink.

[0435] As an embodiment, the uplink and downlink TDD configuration signaling indicates at least one symbol as uplink.

[0436] As an embodiment, the uplink and downlink TDD configuration signaling is RRC signaling.

[0437] As an embodiment, the benefits of the above method include: high reliability of signaling transmission.

[0438] As an embodiment, the uplink and downlink TDD configuration signaling is tdd-UL-DL-ConfigurationCommon.

[0439] As an embodiment, the uplink and downlink TDD configuration signaling is tdd-UL-DL-ConfigurationDedicated.

[0440] As an embodiment, the uplink and downlink TDD configuration signaling includes tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0441] As an embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0442] As an embodiment, the uplink and downlink TDD configuration signaling includes tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0443] As an embodiment, when a symbol is indicated as uplink / downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, this symbol is a symbol indicated as uplink / downlink by the uplink / downlink TDD configuration signaling.

[0444] Example 17

[0445] Embodiment 17 illustrates a structural block diagram of a processing device in a first node device, as shown in FIG17. In FIG17, the first node device processing device A00 includes a first processor A03, and the first processor A03 includes a first receiver A01 and a first transmitter A02.

[0446] As an embodiment, the first node device A00 is a user equipment.

[0447] As an embodiment, the first node device A00 is a relay node.

[0448] As an embodiment, the first node device A00 is a vehicle-mounted communication device.

[0449] As an embodiment, the first node device A00 is a conventional user equipment.

[0450] As an embodiment, the first node device A00 is a UE with relevant configuration supporting (non-overlapping sub-bands or other types) full-duplex operation.

[0451] As an embodiment, the first receiver A01 includes at least one of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0452] As an embodiment, the first receiver A01 includes at least the first five of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0453] As an embodiment, the first receiver A01 includes at least the first four of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0454] As an embodiment, the first receiver A01 includes at least the first three of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0455] As an embodiment, the first receiver A01 includes at least the first two of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0456] As an embodiment, the first transmitter A02 includes at least one of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0457] As an embodiment, the first transmitter A02 includes at least the first five of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0458] As an embodiment, the first transmitter A02 includes at least the first four of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0459] As an embodiment, the first transmitter A02 includes at least the first three of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0460] As an embodiment, the first transmitter A02 includes at least the first two of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0461] As an embodiment, the first processor A03 operates the first physical channel and operates the target PT-RS for the first physical channel, including: the first transmitter A02 sends the first physical channel and sends the target PT-RS for the first physical channel.

[0462] As an embodiment, the first transmitter A02 sends a first physical channel and sends a target PT-RS for the first physical channel; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0463] As an embodiment, the first processor A03 operates the first physical channel and operates the target PT-RS for the first physical channel, including: the first receiver A01 receives the first physical channel and receives the target PT-RS for the first physical channel.

[0464] As an embodiment, the first receiver A01 receives a first physical channel and receives a target PT-RS for the first physical channel; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0465] As an embodiment, the second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0466] As an embodiment, the density of the target PT-RS is a sampling density of the target PT-RS.

[0467] As an embodiment, if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0468] As an embodiment, the density of the target PT-RS is the time domain density of the target PT-RS.

[0469] As an embodiment, the density of the target PT-RS is the frequency domain density of the target PT-RS.

[0470] As an embodiment, the symbol types only include full-duplex and non-full-duplex; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is not a full-duplex symbol; when a symbol is not a full-duplex symbol, this symbol is a non-full-duplex symbol.

[0471] As an embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0472] As an embodiment, the first physical channel is PDSCH (Physical Downlink Shared CHannel), and the first node receives the first physical channel; the first node receives the target PT-RS.

[0473] As an embodiment, the first physical channel is a PUSCH (Physical Uplink Shared CHannel), and the first node sends the first physical channel; the first node sends the target PT-RS.

[0474] As an embodiment, the first processor A03 determines whether a first information block is configured, the first information block including at least the first parameter;

[0475] As an embodiment, the first receiver A01 receives first signaling, and the first signaling schedules the first physical channel.

[0476] As an embodiment, the first transmitter A02 transmits a first physical channel and transmits a target PT-RS for the first physical channel, and the first physical channel is a PUSCH; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes full-duplex and non-full-duplex, the first parameter is a parameter for PT-RS for full-duplex symbols; the second parameter is a parameter for PT-RS, and the second parameter is configured; the density of the target PT-RS is the sampling density of the target PT-RS; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the target PT -The density of the target PT-RS is obtained based on the mapping rule configured by the first parameter, and the mapping rule configured by the first parameter is: a function of the mapping of the scheduled bandwidth to the sampling density of the PT-RS configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the sampling density of the PT-RS configured by the second parameter; when a symbol is indicated as a downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as an uplink by the uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0477] As a sub-embodiment of the above embodiment, transform precoding is applied to the first physical channel, and the target PT-RS is an uplink PT-RS (UL PT-RS).

[0478] As a sub-embodiment of the above embodiment, the first physical channel applies transform precoding, the target PT-RS is UL PT-RS (uplink PT-RS), the first parameter is a parameter for configuring the sampling density of PT-RS as a function of the scheduled bandwidth, and the second parameter is another parameter for configuring the sampling density of PT-RS as a function of the scheduled bandwidth.

[0479] As an embodiment, the above method has the following benefits: enhancing the configuration flexibility of the sampling density of the PT-RS, which is conducive to improving the utilization efficiency of the PT-RS.

[0480] As an embodiment, the first transmitter A02 sends a first physical channel and sends a target PT-RS for the first physical channel, and the first physical channel is PUSCH; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols; the density of the target PT-RS is the time domain density of the target PT-RS; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter, and the mapping rule configured by the first parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured If it is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the second parameter; otherwise, the density of the target PT-RS is 1; the second parameter is a parameter for PT-RS; when a symbol is indicated as a downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as an uplink by the uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0481] As a sub-embodiment of the above embodiment, the target PT-RS is an uplink PT-RS (UL PT-RS), the first parameter is a parameter for configuring the presence and time domain density of the UL PT-RS as a function of the scheduled MCS, and the second parameter is another parameter for configuring the presence and time domain density of the UL PT-RS as a function of the scheduled MCS.

[0482] As an embodiment, the above method has the following benefits: enhancing the configuration flexibility of the time domain density of the UL PT-RS, which is beneficial to improving the utilization efficiency of the UL PT-RS.

[0483] As an embodiment, the above method has the following advantages: it is helpful to save configuration signaling overhead while ensuring the use effect of UL PT-RS.

[0484] As an embodiment, the first transmitter A02 sends a first physical channel and sends a target PT-RS for the first physical channel, and the first physical channel is PUSCH; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols; the density of the target PT-RS is the frequency domain density of the target PT-RS; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter, and the mapping rule configured by the first parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured The number is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the second parameter; otherwise, the density of the target PT-RS is 2; the second parameter is a parameter for PT-RS; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0485] As a sub-embodiment of the above embodiment, the target PT-RS is an uplink PT-RS (UL PT-RS), the first parameter is a parameter for configuring the presence and frequency domain density of UL PT-RS as a function of the scheduled bandwidth, and the second parameter is another parameter for configuring the presence and frequency domain density of UL PT-RS as a function of the scheduled bandwidth.

[0486] As an embodiment, the above method has the following benefits: enhancing the configuration flexibility of the frequency domain density of the UL PT-RS, which is beneficial to improving the utilization efficiency of the UL PT-RS.

[0487] As an embodiment, the above method has the following advantages: it is helpful to save configuration signaling overhead while ensuring the use effect of UL PT-RS.

[0488] As an embodiment, the first receiver A01 receives a first physical channel and receives a target PT-RS for the first physical channel, and the first physical channel is PDSCH; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols; the density of the target PT-RS is the time domain density of the target PT-RS; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter, and the mapping rule configured by the first parameter is: a function of the mapping of the scheduled MCS to the time domain density of the PT-RS configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured If it is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled MCS to the time domain density of PT-RS configured by the second parameter; otherwise, the density of the target PT-RS is 1; the second parameter is a parameter for PT-RS; when a symbol is indicated as a downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as an uplink by the uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0489] As a sub-embodiment of the above embodiment, the target PT-RS is a downlink PT-RS (DL PT-RS), the first parameter is a parameter for configuring the presence and time domain density of the DL PT-RS as a function of the scheduled MCS, and the second parameter is another parameter for configuring the presence and time domain density of the DL PT-RS as a function of the scheduled MCS.

[0490] As an embodiment, the above method has the following benefits: enhancing the configuration flexibility of the time domain density of the DL PT-RS, which is beneficial to improving the utilization efficiency of the DL PT-RS.

[0491] As an embodiment, the above method has the following advantages: it is helpful to save configuration signaling overhead while ensuring the use effect of DL PT-RS.

[0492] As an embodiment, the first receiver A01 receives a first physical channel and receives a target PT-RS for the first physical channel, and the first physical channel is PDSCH; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols; the density of the target PT-RS is the frequency domain density of the target PT-RS; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter, and the mapping rule configured by the first parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured The number is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter, and the mapping rule configured by the second parameter is: a function of the mapping of the scheduled bandwidth to the frequency domain density of the PT-RS configured by the second parameter; otherwise, the density of the target PT-RS is 2; the second parameter is a parameter for PT-RS; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is a non-full-duplex symbol.

[0493] As a sub-embodiment of the above embodiment, the target PT-RS is a downlink PT-RS (DL PT-RS), the first parameter is a parameter for configuring the presence and frequency domain density of the DL PT-RS as a function of the scheduled bandwidth, and the second parameter is another parameter for configuring the presence and frequency domain density of the DL PT-RS as a function of the scheduled bandwidth.

[0494] As an embodiment, the above method has the following benefits: enhancing the configuration flexibility of the frequency domain density of the DL PT-RS, which is beneficial to improving the utilization efficiency of the DL PT-RS.

[0495] As an embodiment, the above method has the following advantages: it is helpful to save configuration signaling overhead while ensuring the use effect of DL PT-RS.

[0496] Example 18

[0497] Embodiment 18 illustrates a structural block diagram of a processing device in a second node device, as shown in FIG18. In FIG18, the second node device processing device B00 includes a second processor B03, and the second processor B03 includes a second transmitter B01 and a second receiver B02.

[0498] As an embodiment, the second node device B00 is a base station.

[0499] As an embodiment, the second node device B00 is a satellite device.

[0500] As an embodiment, the second node device B00 is a relay node.

[0501] As an embodiment, the second node device B00 is a base station supporting full-duplex operation (non-overlapping sub-bands or other types).

[0502] As an embodiment, the second node device B00 is one of a test device, a test equipment, and a test instrument.

[0503] As an embodiment, the second transmitter B01 includes at least one of the antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0504] As an embodiment, the second transmitter B01 includes at least the first five of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0505] As an embodiment, the second transmitter B01 includes at least the first four of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0506] As an embodiment, the second transmitter B01 includes at least the first three of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0507] As an embodiment, the second transmitter B01 includes at least the first two of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0508] As an embodiment, the second receiver B02 includes at least one of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0509] As an embodiment, the second receiver B02 includes at least the first five of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0510] As an embodiment, the second receiver B02 includes at least the first four of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0511] As an embodiment, the second receiver B02 includes at least the first three of the antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0512] As an embodiment, the second receiver B02 includes at least the first two of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0513] As an embodiment, the second processor B03 operates the first physical channel and operates the target PT-RS for the first physical channel, including: the second receiver B02 receives the first physical channel and receives the target PT-RS for the first physical channel.

[0514] As an embodiment, the second receiver B02 receives a first physical channel and receives a target PT-RS for the first physical channel; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0515] As an embodiment, the second processor B03 operates the first physical channel and operates the target PT-RS for the first physical channel, including: the second transmitter B01 sends the first physical channel and sends the target PT-RS for the first physical channel.

[0516] As an embodiment, the second transmitter B01 sends a first physical channel and sends a target PT-RS for the first physical channel; wherein the density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

[0517] As an embodiment, the second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, then the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

[0518] As an embodiment, the density of the target PT-RS is a sampling density of the target PT-RS.

[0519] As an embodiment, if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; if the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

[0520] As an embodiment, the density of the target PT-RS is the time domain density of the target PT-RS.

[0521] As an embodiment, the density of the target PT-RS is the frequency domain density of the target PT-RS.

[0522] As an embodiment, the symbol types only include full-duplex and non-full-duplex; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is not a full-duplex symbol; when a symbol is not a full-duplex symbol, this symbol is a non-full-duplex symbol.

[0523] As an embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0524] As an embodiment, the first physical channel is PDSCH, the second node sends the first physical channel; the second node sends the target PT-RS.

[0525] As an embodiment, the first physical channel is PUSCH, the second node receives the first physical channel; the second node receives the target PT-RS.

[0526] As an embodiment, the second transmitter B01 sends a first signaling, and the first signaling schedules the first physical channel.

[0527] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing 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 functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this 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 vehicles, 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, RSUs, drones, test equipment, such as transceivers or signaling testers that simulate some functions of base stations, and other wireless communication equipment.

[0528] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for wireless communication, characterized in that: include: A first processor operates a first physical channel and operates a target PT-RS for the first physical channel, wherein the operation is sending or the operation is receiving; The density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

2. The first node according to claim 1, wherein: The second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

3. The first node according to claim 2, characterized in that The density of the target PT-RS is a sampling density of the target PT-RS.

4. The first node according to claim 1, characterized in that If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on a mapping rule configured by the first parameter; If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on a mapping rule configured by the second parameter; If the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

5. The first node according to claim 4, characterized in that The density of the target PT-RS is a time domain density or a frequency domain density of the target PT-RS.

6. The first node according to any one of claims 1 to 5, characterized in that: The symbol types only include full-duplex and non-full-duplex; when a symbol is indicated as downlink by uplink and downlink TDD configuration signaling and can be used for uplink transmission, this symbol is a full-duplex symbol; when a symbol is indicated as uplink by uplink and downlink TDD configuration signaling, this symbol is not a full-duplex symbol; when a symbol is not a full-duplex symbol, this symbol is a non-full-duplex symbol.

7. The first node according to any one of claims 1 to 6, characterized in that: The first physical channel is a PDSCH, the operation is receiving; the first node receives the target PT-RS; Alternatively, it is characterized in that the first physical channel is PUSCH, the operation is sending; and the first node sends the target PT-RS.

8. A method in a first node for wireless communication, characterized in that: include: operating a first physical channel and operating a target PT-RS for the first physical channel, wherein the operation is transmission or the operation is reception; The density of the target PT-RS depends on whether the first parameter is configured and the symbol type of at least one symbol allocated to the first physical channel; the symbol type includes at least full-duplex and non-full-duplex, and the first parameter is a parameter for PT-RS for full-duplex symbols.

9. The method in the first node according to claim 8, characterized in that: The second parameter is a parameter for PT-RS, and the second parameter is configured; if at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the first parameter; otherwise, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter.

10. The method in the first node according to claim 8, characterized in that: If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is configured, the density of the target PT-RS is obtained based on a mapping rule configured by the first parameter; If at least one symbol allocated to the first physical channel is a full-duplex symbol and the first parameter is not configured and the second parameter is configured, the density of the target PT-RS is obtained based on a mapping rule configured by the second parameter; If the symbols allocated to the first physical channel are all non-full-duplex symbols and the second parameter is configured, the density of the target PT-RS is obtained based on the mapping rule configured by the second parameter; otherwise, the density of the target PT-RS is a default value; the second parameter is a parameter for PT-RS.

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