CN111866790B

CN111866790B - Method and device used in node of wireless communication

Info

Publication number: CN111866790B
Application number: CN201910338987.0A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2022-08-26
Anticipated expiration: 2039-04-25
Also published as: CN111866790A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node firstly receives a first wireless signal and a first reference signal; subsequently, the first signaling is sent; and transmitting a second reference signal, a second wireless signal and a third signal in the first set of time-frequency resources; the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal, the second wireless signal, and the third signal is a first power value, a second power value, and a third power value, respectively; the first wireless signal is used to determine the first power value, the first reference signal is used to determine the second power value; the second reference signal, the second wireless signal, and the third wireless signal share at least one multicarrier symbol. According to the method and the device, the first power value and the second power value are independently determined, so that the channel measurement accuracy and the overall transmission performance on the sidelink are improved.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly, to methods and apparatus for power control in a vehicle networking system.

Background

The 3GPP has also started to initiate standards development and research work under the NR framework for the rapidly evolving Vehicle-to-evolution (V2X) service. The 3GPP has completed the work of formulating the requirements for the service 5G V2X and has written the standard TS 22.886. The 3GPP defines a 4-large application scenario group (Use Case Groups) for the 5G V2X service, which includes: automatic queuing Driving (Vehicles platform), Extended sensing (Extended Sensors), semi/full automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). NR-based V2X technical research has been initiated at 3GPP RAN #80 congress, and has agreed to use Pathloss at the transmitting and receiving ends of the V2X pair as a reference for V2X transmit power at RAN 12019 first ad hoc conference.

In the discussion of D2D (Device to Device) and V2X of Rel-12/13/14, the transmission power on the Sidelink (Sidelink) is often obtained based on the path loss (Pathloss) between the base station and the terminal to ensure that the wireless signals transmitted on the Sidelink do not affect the uplink reception of the base station. In Rel-15 NR-based V2X, interference of wireless signals between the various V2X links also needs to be considered. Further, in the RAN1#96bis conference, the RAN1 agrees to introduce a CSI-RS (Channel State Information Reference Signal) on the secondary link for obtaining CSI (Channel State Information) on the secondary link.

Disclosure of Invention

According to the latest advances discussed in RAN1#96bis conference on V2X, CSI-RS restriction (defined) on the secondary link is sent in PSSCH (Physical Sidelink Shared Channel) to reduce Overhead (Overhead) of non-data channels on the secondary link. In 4G and 5G NR systems, CSI-RS is often used to obtain small-scale fading between a base station and a UE (User Equipment), so as to obtain Frequency Selective Gain (Frequency Selective Gain) and beamforming Gain during scheduling. Based on the above purpose, the sending power of the CSI-RS is not frequently changed, so as to ensure that the UE can obtain and report accurate and effective CSI.

In the V2X system, when an open loop (Openloop) power control method considering the path loss on the sidelink is adopted, the transmission power of the pschs is affected by the path loss change between the UE and the UE; however, for the design purpose of the CSI-RS on LTE and NR Uu links, the path loss should not affect the transmission power of the CSI-RS. Based on the above analysis, how to determine the transmission power of the CSI-RS and the PSSCH when the CSI-RS is confined to the PSSCH would be a problem to be solved in V2X.

A simple solution to the above problem is that the CSI-RS varies with the transmission power value of the PSSCH, but such CSI-RS with unstable transmission power will affect the accuracy of the CSI reported on the sidelink. The present application discloses a solution to solve the above-mentioned problems. It should be noted that, in a non-conflicting situation, the features in the embodiments and embodiments in the first node of the present application may be applied to the base station, and at the same time, the features in the embodiments and embodiments in the second node of the present application may be applied to the terminal device. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method in a first node used for wireless communication, characterized by comprising:

receiving a first wireless signal and a first reference signal;

sending a first signaling;

transmitting a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal on each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; an average transmission power of the second wireless signal on each resource element occupied is a second power value, reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As an example, one benefit of the above approach is that: the first power value and the second power value are obtained with reference to the first wireless signal and the first reference signal, respectively; when the first wireless signal is a wireless signal on a secondary link and the first reference signal is a reference signal on a cellular link, and further when the path loss of the first power value between the V2X terminals is not changed, the power of the second reference signal is kept unchanged to ensure the CSI accuracy on the secondary link, and the second power value is referred to the path loss of the cellular link to ensure that no interference is generated on the uplink of the cellular link.

As an example, another benefit of the above method is: when the first power value and the second power value are completely and independently calculated, the power value of a multi-carrier symbol including CSI-RS in PSSCH is different from the power value of a multi-carrier symbol not including CSI-RS in PSSCH, and aiming at the problem, a third signal is introduced in the application, and the power value of the multi-carrier symbol including CSI-RS is dynamically adjusted through the third signal, so that the transmission power values of all multi-carrier symbols included in PSSCH are not fluctuated, and the requirement of a receiver is met.

As an example, a further benefit of the above method is that: the third Signal in the present application adopts a flexible design manner, and may be transmitted with Zero transmission Power in a manner of ZP-CSI-RS (Zero Power Channel State Information Reference Signal) in NR, or may also adjust a Power value on the entire multicarrier symbol including CSI-RS by using a non-Zero Power dummy Signal, thereby ensuring that the Power of the entire PSSCH on each multicarrier symbol does not fluctuate.

According to an aspect of the present application, the method is characterized in that the first power value is determined by a first power control process, the second power value is determined by a second power control process, and the first power control process and the second power control process are two different power control processes.

As an example, the above method has the benefits of: the second reference signal and the second wireless signal adopt independent power control processes, so that the PSSCH can be adjusted according to the path loss on the Uu link to avoid the interference on the uplink transmission of the Uu link while the transmission power value of the CSI-RS on the secondary link is ensured to be stable.

According to an aspect of the application, the above method is characterized in that the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, and the wireless sub-signals of the second wireless signal mapped into the first subset of time-frequency resources are Punctured (puncuted).

According to an aspect of the application, the above method is characterized in that the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second radio signal and the second reference signal, the first field is used to indicate RE (resource element) positions occupied by the third signal in the first subset of time-frequency resources.

As an example, the above method has the benefits of: the design of the third signal is made more flexible by the indication of the first domain.

According to one aspect of the application, the above method is characterized in that the first signaling comprises a second field, the second field being used for determining at least one of:

-the second reference signal is included in the first set of time-frequency resources;

the first power level is not equal to the second power level;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

As an example, the above method has the benefits of: through the indication of the second domain, the receiver of the first signaling can obtain the sending power value of the second reference signal more accurately, and the accuracy of CSI measurement on the secondary link is further ensured.

The application discloses a method in a second node used for wireless communication, characterized by comprising:

transmitting a first wireless signal;

receiving a first signaling;

receiving a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by the sender of the first signaling for the reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of each RE occupied by the third signal is a third power value; at least one multi-carrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second radio signal and the third signal.

According to an aspect of the application, the method above is characterized in that the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second radio signal and the second reference signal, the radio sub-signals of the second radio signal mapped into the first subset of time-frequency resources being punctured.

According to an aspect of the application, the above method is characterized in that the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second radio signal and the second reference signal, the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

the first power level is not equal to the second power level;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

The application discloses a method in a third node used for wireless communication, characterized by comprising:

transmitting at least a first reference signal of the first wireless signal or the first reference signal;

wherein the first signaling is used to indicate a first set of time-frequency resources; the average transmit power of the second reference signal on each resource element occupied is a first power value, the reception for the first radio signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal at each occupied RE is a third power value; at least one multi-carrier symbol exists in the first set of time-frequency resources and is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the first set of time-frequency resources includes resource elements occupied by the second wireless signal, resource elements occupied by the second reference signal, and resource elements occupied by the third signal.

The application discloses a first node used for wireless communication, characterized by comprising:

a first receiver that receives a first wireless signal and a first reference signal;

a first transmitter for transmitting a first signaling;

a second transmitter that transmits a second reference signal, a second wireless signal, and a third signal in the first set of time-frequency resources;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, the reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multi-carrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second radio signal and the third signal.

The application discloses a second node used for wireless communication, characterized by comprising:

a third transmitter that transmits the first wireless signal;

a second receiver receiving the first signaling;

a third receiver that receives a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by the sender of the first signaling for the reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

The application discloses be used for wireless communication's third node, its characterized in that includes:

a fourth transmitter to transmit at least a first reference signal of the first wireless signal or the first reference signal;

wherein the first signaling is used to indicate a first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, the reception for the first radio signal being used to determine said first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal at each occupied RE is a third power value; at least one multicarrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the first set of time-frequency resources includes resource elements occupied by the second wireless signal, resource elements occupied by the second reference signal, and resource elements occupied by the third signal.

As an example, compared with the conventional scheme, the method has the following advantages:

the first power value and the second power value are obtained with reference to the first wireless signal and the first reference signal, respectively; when the first wireless signal is a wireless signal on a secondary link and the first reference signal is a reference signal on a cellular link, and further when the path loss of the first power value between the V2X terminals is not changed, the power of the second reference signal is kept unchanged to ensure the CSI accuracy on the secondary link, and the second power value is referred to the path loss of the cellular link to ensure that no interference is generated on the uplink of the cellular link.

In order to solve the above problem, a third signal is introduced in the present application, and the power value in the multi-carrier symbol including the CSI-RS is dynamically adjusted by the third signal, so that the power values on all multi-carrier symbols included in the PSSCH are ensured not to fluctuate, and the receiver requirement is met.

The third signal in this application adopts a flexible design manner, which may be transmitted with zero transmission power in a ZP-CSI-R manner in NR, or may adjust the power value of the entire multi-carrier symbol including CSI-RS by using a non-zero-power dummy signal, so as to ensure that the power of the entire pscch on each multi-carrier symbol does not fluctuate.

Drawings

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

FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

fig. 5 shows a flow diagram of first signaling according to an embodiment of the application;

fig. 6 shows a flow diagram of first signaling according to another embodiment of the present application;

FIG. 7 shows a schematic diagram of one design principle according to the present application;

FIG. 8 shows a schematic diagram of another design principle according to the present application;

FIG. 9 shows a schematic diagram of a first wireless signal and a first reference signal according to the present application;

FIG. 10 shows a schematic diagram of a third signal according to the present application;

FIG. 11 shows a schematic diagram of a third signal according to the present application;

FIG. 12 shows a schematic diagram of a second reference signal and a second wireless signal according to the present application;

FIG. 13 shows a schematic diagram of another second reference signal and a second wireless signal according to the present application;

FIG. 14 shows a schematic diagram of a third signal, a second reference signal and a second wireless signal according to the present application;

FIG. 15 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

figure 16 shows a block diagram of a structure used in a second node according to an embodiment of the present application;

fig. 17 shows a block diagram of a structure used in a third node according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives a first wireless signal and a first reference signal in step 101; transmitting a first signaling in step 102; transmitting a second reference signal, a second radio signal and a third signal in a first set of time-frequency resources in step S103;

in embodiment 1, the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; an average transmission power of the second wireless signal on each resource element occupied is a second power value, reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

In one embodiment, the resource element is a RE (resource element).

As an embodiment, the resource element occupies one multicarrier symbol in the time domain and one subcarrier in the frequency domain.

As an example, the first Power value is a PSD (Power spectral Density).

As an example, the second power value is a PSD.

As an example, the third power value is a PSD.

As an example, the first power value is EPRE (Energy Per Resource Element).

As an example, the second power value is EPRE.

As an example, the third power value is EPRE.

As an example, the above sentence wherein the meaning that reception for the first wireless signal is used to determine the first power value comprises: the measurement result for the first wireless signal is used to determine the first power value.

As a sub-embodiment of this embodiment, the first wireless signal is transmitted over a PC-5 link.

As a sub-embodiment of this embodiment, the first wireless signal is transmitted on a Sidelink (Sidelink).

As a sub-embodiment of this embodiment, the measurement result for the first wireless Signal includes RSRP (Reference Signal Received Power) obtained for measurement of the first wireless Signal.

As a sub-embodiment of this embodiment, the measurement result for the first wireless signal includes a path loss of a sender of the first wireless signal to the first node obtained by measurement for the first wireless signal.

As a sub-embodiment of this embodiment, the sender of the first wireless signal is a terminal.

As a sub-embodiment of this embodiment, the first wireless Signal is PSSS (Primary Sidelink Synchronization Signal) or SSSS (Secondary Sidelink Synchronization Signal).

As a sub-embodiment of this embodiment, the first wireless Signal is a S-PSS (Sidelink Primary Synchronization Signal) or S-SSS (Sidelink Secondary Synchronization Signal).

As a sub-embodiment of this embodiment, the first radio signal is used for synchronization on the secondary link.

As a sub-embodiment of this embodiment, the Physical layer Channel occupied by the first wireless signal includes a PSDCH (Physical Sidelink Discovery signal).

As a sub-embodiment of this embodiment, the Physical layer Channel occupied by the first wireless signal includes PSBCH (Physical Sidelink Broadcasting Channel).

As a sub-embodiment of this embodiment, the first wireless signal is a CSI-RS on the secondary link.

As an example, the above sentence indicating that reception of the first wireless signal is used to determine the first power value comprises: the first wireless signal is used to determine the first power value.

As a sub-embodiment of this embodiment, the above sentence where the first wireless signal is used to determine the first power value comprises: the first Radio signal is used to indicate the first power value, and the first Radio signal is a Radio Resource Control (RRC) signaling.

As a sub-embodiment of this embodiment, the above sentence where the first wireless signal is used to determine the first power value comprises: the first wireless signal is transmitted over a PC-5 link.

As a sub-embodiment of this embodiment, the above sentence where the first wireless signal is used to determine the first power value comprises: the first wireless signal is transmitted on a Sidelink (Sidelink).

As an example, the meaning of the above sentence for the reception of the first reference signal being used to determine the second power value includes: measurements for the first reference signal are used to determine the second power value.

As a sub-embodiment of this embodiment, the first reference signal is transmitted on a Uu link.

As a sub-embodiment of this embodiment, the first reference signal is transmitted by an attached base station of a serving cell of the first node.

As a sub-embodiment of this embodiment, the measurement result for the first reference signal comprises an RSRP obtained by measurement for the first reference signal.

As a sub-embodiment of this embodiment, the measurement result for the first reference signal includes a path loss from a sender of the first reference signal to the first node obtained for the measurement of the first reference signal.

As a sub-embodiment of this embodiment, the sender of the first reference signal is a base station.

As a sub-embodiment of this embodiment, the CSI-RS on the first reference signal cellular link.

As a sub-embodiment of this embodiment, the first Reference Signal is a CRS (Cell Reference Signal).

As a sub-embodiment of this embodiment, the first reference Signal is PSS (Primary Synchronization Signal) or SSS (Secondary Synchronization Signal).

As an embodiment, the first power value is predefined or the first power value is self-determined by a sender of the first wireless signal used to indicate the first power value.

For one embodiment, the first power value is not equal to the second power value.

As an example, the first power value is independent of the second power value.

As an embodiment, the second reference signal and the third signal occupy the same multicarrier symbol in the first set of time-frequency resources.

As an embodiment, the second reference signal and the third signal occupy a first subset of multicarrier symbols, and the second reference signal and the third signal are FDM (Frequency Division Multiplexing) in the first subset of multicarrier symbols.

As an embodiment, the second reference signal and the third signal occupy a first subset of multicarrier symbols, and the second wireless signal occupies a positive integer number of REs in the first set of time-frequency resources and outside the first subset of multicarrier symbols.

As an embodiment, the second reference signal and the third signal occupy a first subset of multicarrier symbols, and the second wireless signal occupies at least one RE of the first set of time-frequency resources that is located on the first subset of multicarrier symbols.

As an embodiment, the meaning of the sentence that the second reference signal, the second wireless signal and the third signal are transmitted in the first set of time-frequency resources includes: the third power value is equal to 0, and the first node transmits the third signal at a transmission power of 0.

As an embodiment, a first block of bits is used to generate the second wireless signal, the first block of bits not being used to generate the third signal.

As one embodiment, the third signal is not used for decoding of the second wireless signal.

As one embodiment, the third signal is not used for demodulation of the second wireless signal.

As one embodiment, the third Signal is a redundant Signal (Dummy Signal).

As an embodiment, the first set of time-frequency resources occupies a first set of multicarrier symbols in the time domain, the second reference signal occupies a first subset of multicarrier symbols in the first set of multicarrier symbols in the time domain, and the third signal is used to determine that a transmit power value of each multicarrier symbol on the first subset of multicarrier symbols is the same as a transmit power value on each multicarrier symbol in the first set of multicarrier symbols and outside the first subset of multicarrier symbols.

As an embodiment, the first set of time-frequency resources occupies a first set of multicarrier symbols, and the transmit power value of the first node on each multicarrier symbol in the first set of multicarrier symbols remains unchanged.

As one embodiment, the second reference signal is a CSI-RS for a secondary link.

As an embodiment, the physical layer channel occupied by the second radio signal is a psch.

As an embodiment, the first set of time-frequency resources includes, in a frequency domain, frequency-domain resources occupied by a positive integer number of PRBs (Physical Resource blocks).

As an embodiment, the first set of time-frequency resources occupies a positive integer number of multicarrier symbols in the time domain.

As one embodiment, the second wireless signal is for Transmission of one TB (Transmission Block).

As an embodiment, the frequency domain resource occupied by the first time-frequency resource set belongs to a BWP (Bandwidth Part).

As an embodiment, the frequency domain resource occupied by the first set of time-frequency resources belongs to one CC (Component Carrier).

As an embodiment, the first signaling is SCI (Sidelink Control Information).

As one embodiment, the first signaling is used to schedule the second wireless signal.

As one example, the first power value may be in units of milliwatts (w).

As an example, the first power value is in dBm (millidecibels).

As one example, the unit of the first power value is watts (mw).

As an example, the unit of the first power value is joule.

As an example, the second power value has a unit of milliwatts.

As an example, the second power value has a unit of dBm (decibels).

As an example, the unit of the second power value is watts.

As an example, the second power value has a unit of joules.

As an example, the third power value may be in units of milliwatts.

As an example, the third power value has a unit of dBm (decibels).

As an example, the unit of the third power value is watts.

As an example, the unit of the third power value is joules.

As one embodiment, the first wireless signal is transmitted between terminals.

As an embodiment, the first reference signal is transmitted between a base station and a terminal.

As an embodiment, the second reference signal is transmitted between terminals.

As one embodiment, the second wireless signal is transmitted between terminals.

As a sub-embodiment of the above four embodiments, the terminal is one of an automobile, a vehicle, or an RSU (Road Side Unit).

As a sub-embodiment of the above four embodiments, the base station comprises an RSU.

As an embodiment, the first reference signal is generated by a Zadoff-chu sequence.

As an embodiment, the first reference signal is generated by a pseudo-random sequence.

As an example, the first reference signal is generated by a golden sequence.

As an embodiment, the second reference signal is generated by a Zadoff-chu sequence.

As an embodiment, the second reference signal is generated by a pseudo-random sequence.

As an example, the second reference signal is generated by a golden sequence.

As one embodiment, the first wireless signal is generated by a Zadoff-chu sequence.

As one embodiment, the first wireless signal is generated by a pseudo-random sequence.

As an embodiment, the first wireless signal is generated by a golden sequence.

As an embodiment, the multicarrier symbol in this application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multicarrier symbol in this application is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

As an embodiment, the multicarrier symbol in this application is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

As an embodiment, the multicarrier symbol in the present application is an FBMC (Filter Bank Multi Carrier) symbol.

As an embodiment, the multicarrier symbol in this application includes CP (Cyclic Prefix).

As an embodiment, in the above sentence, the meaning that at least one multicarrier symbol exists in the first set of time-frequency resources and is simultaneously occupied by the second reference signal includes: the first time-frequency resource set at least has one RE set, and the time domain resources occupied by the RE set belong to the same multi-carrier symbol; the second reference signal, the second wireless signal, and the third signal each occupy at least one RE in the set of REs.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 of 5G NR, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, and includes one UE241 in sidelink communication with the UE201, an NG-RAN (next generation radio access Network) 202, an EPC (Evolved Packet Core)/5G-CN (5G-Core Network) 210, an HSS (Home Subscriber Server) 220, and an internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of UEs 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, Personal Digital Assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband internet of things equipment, machine-type communication equipment, land vehicles, automobiles, wearable equipment, or any other similar functioning device. UE201 may also be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communications 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. The gNB203 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the gNB203 corresponds to the third node in the present application.

As an embodiment, the UE241 corresponds to the second node in this application.

As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.

As an embodiment, the air interface between the UE201 and the UE241 is a PC5 interface.

As an embodiment, the radio link between the UE201 and the gNB203 is a cellular link.

As an embodiment, the radio link between the UE201 and the UE241 is a sidelink.

As an embodiment, the first node in this application is the UE201, and the second node in this application is a terminal in coverage of the gNB 203.

As an embodiment, the first node in this application is the UE201, and the second node in this application is a terminal outside the coverage of the gNB 203.

As an embodiment, the first node and the second node in this application are both served by the third node.

As an embodiment, the first node and the second node belong to one terminal group.

As one embodiment, the first node is a car.

As one example, the second node is a car.

As one embodiment, the first node is a vehicle.

As an embodiment, the second node is a vehicle.

As an embodiment, the second node is a base station.

As an embodiment, the first node is an RSU.

As an embodiment, the second node is an RSU.

For one embodiment, the first node is a Group Header (Group Header) of a Group of terminals.

For one embodiment, the second node is a group head of a terminal group.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first communication node device (UE, RSU in gNB or V2X) and the second communication node device (gNB, RSU in UE or V2X), or the control plane 300 between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer 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 and second communication node devices and the two UEs through PHY 301. The L2 layer 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 ciphering data packets and provides handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. 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) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the 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 comprises layer 1 (layer L1) and layer 2 (layer L2), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for 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 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., far end UE, server, etc.).

The radio protocol architecture of fig. 3 applies to the first node in this application as an example.

As an example, the radio protocol architecture in fig. 3 is applicable to the second node in this application.

The radio protocol architecture of fig. 3 applies, as an example, to the third node in the present application.

For one embodiment, the first wireless signal is generated from the PHY301 or the PHY 351.

As an embodiment, the first wireless signal is generated at the RRC 306.

For one embodiment, the first reference signal is generated from the PHY301 or the PHY 351.

For one embodiment, the first reference signal is generated at the MAC352 or the MAC 302.

For one embodiment, the second wireless signal is generated from the PHY301 or the PHY 351.

For one embodiment, the second wireless signal is generated at the MAC352 or the MAC 302.

For one embodiment, the second reference signal is generated from the PHY301 or the PHY 351.

For one embodiment, the second reference signal is generated at the MAC352 or the MAC 302.

For one embodiment, the third signal is generated from the PHY301 or the PHY 351.

For one embodiment, the third signal is generated at the MAC352 or the MAC 302.

For one embodiment, the first signaling is generated from the PHY301 or the PHY 351.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

The first communications 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.

The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the first 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 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels carrying the time-domain multicarrier symbol streams. 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 multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the second communications apparatus 410 to the first communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the first communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered at a 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 second communication device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In transmissions from the second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In a transmission from the first communications device 450 to the second communications device 410, a data source 467 is used at the first communications device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the send function at the second communications apparatus 410 described in the transmission from the second communications apparatus 410 to the first communications apparatus 450, the controller/processor 459 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, performing 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 said second communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the transmit processor 468 then modulates the resulting spatial streams into multi-carrier/single-carrier symbol streams, which are provided to different antennas 452 via a transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides the radio frequency symbol stream to the antenna 452.

In a transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the receiving functionality at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communications device 450 to the second communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: receiving a first wireless signal and a first reference signal, transmitting a first signaling, and transmitting a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources; the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; an average transmission power of the second wireless signal on each resource element occupied is a second power value, reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first wireless signal and a first reference signal, transmitting a first signaling, and transmitting a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources; the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, the reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting a first wireless signal, receiving a first signaling, and receiving a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources; the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by the sender of the first signaling for the reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of each occupied RE of the third signal is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a first wireless signal, receiving a first signaling, and receiving a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources; the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by the sender of the first signaling for the reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of each RE occupied by the third signal is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting a first reference signal; the first signaling is used to indicate a first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, and the reception for the first wireless signal is used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal at each occupied RE is a third power value; at least one multicarrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the first set of time-frequency resources includes resource elements occupied by the second wireless signal, resource elements occupied by the second reference signal, and resource elements occupied by the third signal.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a first reference signal; the first signaling is used to indicate a first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, the reception for the first radio signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal at each occupied RE is a third power value; at least one multicarrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the first set of time-frequency resources includes resource elements occupied by the second wireless signal, resource elements occupied by the second reference signal, and resource elements occupied by the third signal.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the second communication device 410 corresponds to a third node in the present application.

For one embodiment, the first communication device 450 is a UE.

In one embodiment, the second communication device 410 is a UE.

For one embodiment, the second communication device 410 is a base station.

For one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 is configured to receive a first wireless signal and a first reference signal.

For one embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 is configured to transmit a first wireless signal.

For one embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 is configured to transmit a first reference signal.

As one implementation, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 is configured to send first signaling; at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 is configured to receive first signaling.

As one implementation, at least one of the antennas 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 is configured to transmit a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources; at least one of the antennas 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 is configured to receive a second reference signal, a second wireless signal, and a third signal in a first set of time-frequency resources.

Example 5

Embodiment 5 illustrates a flow chart of the first signaling, as shown in fig. 5. In fig. 5, communication between the first node U1 and the second node U2 is over an air interface, and communication between the first node U1 and the third node N3 is over an air interface.

For theFirst node U1Receiving a first wireless signal and a first reference signal in step S10; transmitting a first signaling in step S11; the second reference signal, the second wireless signal and the third signal are transmitted in the first set of time-frequency resources in step S12.

For theSecond node U2Transmitting a first wireless signal in step S20; receiving a first signaling in step S21; receiving a second reference signal, a second reference signal in a first set of time-frequency resources in step S22A wireless signal and a third signal.

ForThird node N3In step S30, the first reference signal is transmitted.

In embodiment 5, the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; an average transmission power of the second wireless signal on each resource element occupied is a second power value, reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multi-carrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second radio signal and the third signal.

As an embodiment, the first power value is determined by a first power control process, the second power value is determined by a second power control process, and the first power control process and the second power control process are two different power control processes.

As a sub-embodiment of this embodiment, the first power control procedure is a power control procedure for a reference signal on a secondary link.

As a sub-embodiment of this embodiment, the second power control procedure is a power control procedure for a data channel on a secondary link.

As a sub-embodiment of this embodiment, the meaning of the second power value determined by the second power control process in the above sentence includes: the path loss between the first node U1 and the third node N3 is used for the second power control process.

As a sub-embodiment of this embodiment, the meaning of the first power value determined by the first power control process in the above sentence includes: the path loss between the first node U1 and the second node U2 is used for the first power control process.

As a sub-embodiment of this embodiment, the meaning of the first power value determined by the first power control process in the above sentence includes: the first power value remains unchanged when the path loss between the first node U1 and the second node U2 is unchanged.

As a sub-embodiment of this embodiment, the first power control process corresponds to a first Parameter Set Configuration Index (Parameter Set Configuration Index), the second power control process corresponds to a second Parameter Set Configuration Index, and the first Parameter Set Configuration Index is not equal to the second Parameter Set Configuration Index.

As a sub-embodiment of this embodiment, the first power control procedure and the second power control procedure are respectively associated with different antenna ports.

As a sub-embodiment of this embodiment, the first power control procedure and the second power control procedure are respectively associated with different antenna port groups, where the antenna port groups include a positive integer number of antenna ports.

As an additional embodiment of the sub-embodiment, the antenna port group associated with the first power control process and the antenna port group associated with the second power control process are non-QCL (Quasi Co-located).

As an example, the first type of power value is equal to P ₁ ', the first power value is equal to P ₁ ' and log ₁₀ (N ₁ ) Difference of (A), (B), (C) ₁ Representing the number of REs occupied by the second reference signal under one trigger of the first signaling, wherein the first type of power value is determined by the following formula:

P ₁ ′＝min{P _C1 ,10log ₁₀ M ₁ +P ₁ +α ₁ PL ₁ }

wherein, the P _C1 Is the maximum value of the transmit power that can be used for the reference signal transmitted on the sidelink, said P ₁ Is configured through higher layer signaling, the PL ₁ Is a path loss obtained from the first radio signal, the alpha ₁ Is directed to the PL ₁ And said α is ₁ Is configured through higher layer signaling, the M ₁ Related to the bandwidth occupied by the first reference signal.

wherein, the P _C1 Is the maximum value of the transmission power that can be used by the reference signal transmitted on the sidelink, P ₁ Is configured through higher layer signaling, the PL ₁ Is a path loss obtained from the first radio signal, said α ₁ Is directed to the PL ₁ And said α is ₁ Is configured through higher layer signaling, the M ₁ Related to the bandwidth occupied by the first reference signal.

wherein, M is ₁ Related to the bandwidth occupied by the first reference signal.

As a sub-embodiment of this embodiment, RRC signaling maxTxpower is configured, and polynomial a is equal to the following equation:

the P is _C1 Is the maximum value of the transmission power that can be used by the reference signal transmitted on the sidelink, P _{MAX_CBR} By the RRC signaling maxTxpower configuration, the P ₁ Is configured through higher layer signaling, the PL ₁ Is a path loss obtained from the first radio signal, said α ₁ Is directed to the PL ₁ And said α is ₁ Is configured through higher layer signaling.

As a sub-embodiment of this embodiment, the RRC signaling maxTxpower is not configured, and polynomial a is equal to the following equation:

the P is _C1 Is the maximum value of the transmission power that can be used by the reference signal transmitted on the sidelink, P _C1 Is configured through higher layer signaling, the PL ₁ Is a path loss obtained from the first radio signal, said α ₁ Is directed to the PL ₁ And said α is ₁ Is configured through higher layer signaling.

As an example, the second type of power value is equal to P ₂ ', the second power value is equal to P ₂ ' and log ₁₀ (N ₂ ) Difference of (A), (B), (C) and (C), N ₂ Representing the number of RE occupied by the second radio signal under one trigger of the first signaling, wherein the second type of power value is determined by the following formula:

P ₂ ′＝min{P _C2 ,10log ₁₀ M ₂ +P ₂ +min{α ₁ PL ₁ ,α ₂ PL ₂ }}

wherein, the P _C2 Is the maximum transmit power value that can be taken by a data signal transmitted on the sidelink, P ₂ Is configured through higher layer signaling; the PL ₁ Is a path loss obtained from the first radio signal, said α ₁ Is directed to the PL ₁ And said α is ₁ Is configured through higher layer signaling; the PL ₂ Is a path loss obtained from the first reference signal, the alpha ₂ Is directed to the PL ₂ And said α is ₂ Is configured through higher layer signaling; the M is ₂ Related to the bandwidth occupied by the second wireless signal.

As an example, the second type of power value is equal to P ₂ ', the second power value is equal to P ₂ ' and log ₁₀ (N ₂ ) Difference of (A), (B), (C) ₂ Representing the number of RE occupied by the second radio signal under one trigger of the first signaling, wherein the second type of power value is determined by the following formula:

wherein, the P _C2 Is the maximum transmit power value that can be taken by a data signal transmitted on the sidelink, P ₂ Is configured through higher layer signaling; the PL ₁ Is a path loss obtained from the first radio signal, the alpha ₁ Is directed to the PL ₁ And said α is ₁ Is configured through higher layer signaling; the PL ₂ Is a path loss obtained from the first reference signal, the alpha ₂ Is directed to the PL ₂ And said α is a ₂ Is configured through higher layer signaling; the M is ₂ Related to the bandwidth occupied by the second wireless signal.

wherein, M is ₂ Related to the bandwidth occupied by the second wireless signal.

wherein, the P _C2 Is the maximum transmit power value that can be taken by a data signal transmitted on the sidelink, P ₂ Is configured through higher layer signaling; the PL ₁ Is a path loss obtained from the first radio signal, said α ₁ Is directed to the PL ₁ And said α is a ₁ Is configured through higher layer signaling; the PL ₂ Is a path loss obtained from the first reference signal, the alpha ₂ Is directed to the PL ₂ And said α is ₂ Is configured through higher layer signaling; the M is ₂ Related to the bandwidth occupied by the second wireless signal.

As an example, the third power value is equal to P ₃ The second reference signal, the second radioQ in one multi-carrier symbol jointly occupied by signal and the third signal in the first set of time-frequency resources ₁ 、Q ₂ And Q ₃ RE; the first time-frequency resource set occupies Q subcarriers in a frequency domain; the transmission power value of the second reference signal is a first type power value P ₁ ', the first power value is equal to P ₁ ' and log ₁₀ (N ₁ ) Difference of (A), (B), (C) and (C), N ₁ Representing the number of REs occupied by the second reference signal under one time of the first signaling trigger; the P is ₃ The following formula is satisfied:

P ₃ ＝log ₁₀ (Q/Q ₂ )-P ₁ ′-log ₁₀ (Q ₁ /N ₁ )-log ₁₀ (Q ₃ )。

as one embodiment, the first set of time-frequency resources includes a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, and wireless sub-signals of the second wireless signal mapped into the first subset of time-frequency resources are punctured.

As a sub-embodiment of this embodiment, the first set of time-frequency resources includes K REs, the first subset of time-frequency resources includes K1 REs of the K REs, and the second wireless signal occupies only REs of the K REs except for the K1 REs; the K is a positive integer greater than 1, and the K1 is a positive integer less than the K and greater than 1.

As a sub-embodiment of this embodiment, the above sentence, the meaning that the wireless sub-signal mapped into the first subset of time-frequency resources in the second wireless signal is punctured includes: a first block of bits is used to generate the second wireless signal, the first block of bits is used to generate P modulation symbols, modulation symbols of the P modulation symbols that are mapped into the first subset of time-frequency resources are punctured, and modulation symbols of the P modulation symbols that are not punctured constitute the second wireless signal.

As an embodiment, the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, and the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

As a sub-embodiment of this embodiment, the first domain is used to determine a Pattern (Pattern) of the third signal in the first subset of time-frequency resources.

As a sub-embodiment of this embodiment, the first domain is used to determine a sequence for generating the third signal.

As a sub-embodiment of this embodiment, the position of the RE occupied by the third signal is related to the position of the RE occupied by the second reference signal.

As a sub-embodiment of this embodiment, at least one RE of the REs included in the first subset of time-frequency resources is used for transmitting the second wireless signal.

As an embodiment, the first signaling includes a second field used to determine at least one of:

-the first set of time-frequency resources comprises the second reference signal;

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

As a sub-embodiment of this embodiment, the unit of the difference of the first power value and the second power value is dB.

As a sub-embodiment of this embodiment, the second domain is used to determine that the second reference signal is included in the first set of time-frequency resources.

As a sub-embodiment of this embodiment, the second domain is used to determine that the first power value is not equal to the second power value.

As a sub-embodiment of this embodiment, the second domain is used to determine that the third signal is included in the first set of time-frequency resources.

As a sub-embodiment of this embodiment, the second field is used to determine a difference between the first power value and the second power value.

As an embodiment, the first set of time-frequency resources includes the second reference signal, the second wireless signal occupies the first set of time-frequency resources and a second subset of time-frequency resources, the second subset of time-frequency resources occupies the same subcarriers as the first subset of time-frequency resources in the present application in the frequency domain, the second subset of time-frequency resources occupies the same number of multicarrier symbols as the first subset of time-frequency resources, and the second subset of time-frequency resources is consecutive to the first set of time-frequency resources in the time domain.

For one embodiment, the third node N3 and the second node U2 are non-co-located.

As an embodiment, the third node N3 is a base station to which a serving cell of the first node U1 is attached.

As one embodiment, the first wireless signal is RRC signaling from the second node.

As an embodiment, the first wireless signal is RRC signaling from a terminal.

Example 6

Embodiment 6 illustrates another flow chart of the first signaling, as shown in fig. 6. In FIG. 6, communication between the first node U4 and the second node U5 is over an air interface, and communication between the first node U4 and the third node N6 is over an air interface; without conflict, the embodiment, the sub-embodiment, and the subsidiary embodiment in embodiment 5 can be applied to embodiment 6.

ForFirst node U4Receiving a first wireless signal and a first reference signal in step S40; transmitting a first signaling in step S41; the second reference signal, the second wireless signal and the third signal are transmitted in the first set of time-frequency resources in step S42.

For theSecond node U5In step S50, the first signal is receivedA signaling; in step S51, a second reference signal, a second wireless signal and a third signal are received in the first set of time-frequency resources.

For theThird node N6The first wireless signal and the first reference signal are transmitted in step S60.

In embodiment 6, the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, the reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As an embodiment, the first wireless signal is RRC signaling from the third node N6.

As one embodiment, the first wireless signal is RRC signaling from a base station.

As one embodiment, the first wireless signal is used to indicate the first power value.

Example 7

Example 7 illustrates a schematic diagram of the design principle, as shown in fig. 7. In fig. 7, V2X communication is between a first node and a second node, and the first node is under the coverage of a third node; the relative distance between the first node and the second node is not changed, and the first node and the second node integrally move to the direction close to the third node. In this scenario, the first power value adopted by the second reference signal remains unchanged to ensure stable CSI measurement and reporting on the sidelink between the first node and the second node; and the second wireless signal reduces the second power value because of avoiding the interference to the uplink reception of the third node.

As an embodiment, the first node shown in the figure and the second node shown in the figure are both served by the third node shown in the figure.

As an embodiment, the first node shown in the figure is served by said third node, and the second node shown in the figure is a terminal out of the coverage of said third node.

As an embodiment, the first node and the second node belong to a terminal group.

Example 8

Example 8 illustrates a schematic diagram of another design principle, as shown in fig. 8. In fig. 8, V2X communication is between a first node and a second node, and the first node is under the coverage of a third node; the distance between the first node and the third node is kept unchanged, and the second node moves to a position far away from the first node. In this scenario, the first power value adopted by the second reference signal increases as the second node is far away from the first node, so as to ensure accurate CSI measurement and reporting on the sidelink between the first node and the second node; and the second wireless signal has unchanged uplink receiving interference to the third node, so the power value adopted by the second wireless signal remains unchanged.

Example 9

Embodiment 9 illustrates a schematic diagram of a first wireless signal and a first reference signal, as shown in fig. 9. In fig. 9, a first node receives a first wireless signal and transmits a second reference signal, and the first node receives the first reference signal and transmits the second wireless signal; the second node sends a first wireless signal and receives a second reference signal and a second wireless signal; the third node transmits a first reference signal.

As one embodiment, measurements for the first wireless signal are used to determine a transmit power value for the second reference signal.

As an embodiment, measurements for the first reference signal are used to determine a transmit power value of the second wireless signal.

Example 10

Example 10 illustrates a schematic diagram of a third signal, as shown in fig. 10. The small box shown in the figure represents one RE, all REs in the figure form one time-frequency resource block, and the first time-frequency resource set in the present application includes the shown time-frequency resource block. The RE filled with oblique lines in the drawing indicates the RE occupied by the second reference signal, and the RE filled with oblique squares in the drawing indicates the RE occupied by the third signal.

As an embodiment, the REs occupied by the third signal and the REs occupied by the second reference signal are FDM.

As an embodiment, the third signal and the second reference signal occupy the same multicarrier symbol.

As an embodiment, the time-frequency position of the third signal in the time-frequency resource block shown in the figure is fixed.

As an embodiment, the position of the frequency domain resource of the third signal in the time-frequency resource block shown in the figure is fixed relative to the position of the frequency domain resource occupied by the second reference signal.

Example 11

Embodiment 11 illustrates a schematic diagram of a third signal pattern, as shown in fig. 11. The small box shown in the figure represents one RE, all REs in the figure constitute one time-frequency resource block, and the first set of time-frequency resources in this application includes the time-frequency resource block shown. In the figure, the third signals with different REs and different slash filling patterns in one time-frequency resource block.

As an embodiment, the Pattern used by the third signal is determined by the first signaling.

As an embodiment, the Pattern adopted by the third signal is indicated by the first field in the first signaling.

As an embodiment, the Pattern adopted by the third signal is indicated by higher layer signaling.

As an embodiment, the Pattern used by the third signal is dynamically changed.

As an embodiment, the Pattern supported by the third signaling relates to a Pattern used by the second reference signal.

Example 12

Embodiment 12 illustrates a schematic diagram of a second reference signal and a second wireless signal, as shown in fig. 12. The small square box shown in the figure represents one RE, all REs in the figure form a time-frequency resource block, the time-domain resources occupied by the first time-frequency resource set are the same as the occupied time-frequency resources, and the frequency-domain resources occupied by the first time-frequency resource set comprise the occupied time-frequency resource blocks. The part in the bold solid frame in the figure is the position of the RE actually occupied by the second radio signal in the shown time-frequency resource block.

As an embodiment, the second reference signal occupies a first subset of multicarrier symbols in the time domain, and modulation symbols in the second wireless signal that are mapped into the first subset of multicarrier symbols are punctured.

As an example, the third signal shown in the figure is transmitted with 0 transmit power.

As an example, the third signal shown in the figure is ZP-CSI-RS.

As an embodiment, the first signaling is used to dynamically indicate frequency domain resources occupied by the time-frequency resource block.

As an embodiment, the first signaling is used to dynamically indicate a time domain resource occupied by the time-frequency resource block.

Example 13

Embodiment 13 illustrates a schematic diagram of another second reference signal and a second wireless signal, as shown in fig. 13. The small square box shown in the figure represents a RE, the RE in the dotted line frame in the figure forms a time frequency resource block, the time domain resource occupied by the first time frequency resource set is the same as the occupied time domain resource, and the frequency domain resource occupied by the first time frequency resource set comprises the shown time frequency resource block and the occupied frequency domain resource. The part in the bold solid frame in the figure is the position of the RE actually occupied by the second radio signal in the shown time-frequency resource block.

As an embodiment, the second reference signal occupies a first subset of multicarrier symbols in the time domain, and the modulation symbols in the second wireless signal mapped to the first subset of multicarrier symbols are shifted to a second subset of multicarrier symbols shown in the figure.

As an example, the third signal shown in the figure is ZP-CSI-RS.

Example 14

Example 14 illustrates a schematic diagram of a third signal, a second reference signal and a second wireless signal, as shown in fig. 14. The small square box shown in the figure represents one RE, all REs in the figure form a time-frequency resource block, the time-domain resources occupied by the first time-frequency resource set are the same as the occupied time-frequency resources, and the frequency-domain resources occupied by the first time-frequency resource set comprise the occupied time-frequency resource blocks. The part in the bold solid frame in the figure is the position of the RE actually occupied by the second wireless signal in the shown time-frequency resource block.

As an embodiment, modulation symbols of the second radio signal mapped onto REs occupied by the third signal shown in the figure are punctured.

Example 15

Embodiment 15 illustrates a block diagram of the structure in a first node, as shown in fig. 15. In fig. 15, a first node 1500 comprises a first receiver 1501, a first transmitter 1502 and a second transmitter 1503.

A first receiver 1501 receiving a first wireless signal and a first reference signal;

a first transmitter 1502 that transmits a first signaling;

a second transmitter 1503 for transmitting a second reference signal, a second wireless signal and a third signal in the first set of time-frequency resources;

in embodiment 15, the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, the reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

For one embodiment, the first receiver 1501 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

As one embodiment, the first transmitter 1502 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 of embodiment 4.

The second transmitter 1503 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 16

Embodiment 16 illustrates a block diagram of the structure in a second node, as shown in fig. 16. In fig. 16, the second node 1600 comprises a third transmitter 1601, a second receiver 1602 and a third receiver 1603.

A third transmitter 1601 to transmit a first wireless signal;

a second receiver 1602, receiving the first signaling;

a third receiver 1603 that receives the second reference signal, the second wireless signal, and the third signal in the first set of time-frequency resources;

in embodiment 16, the first signaling is used to indicate the first set of time-frequency resources; an average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by a sender of the first signaling for reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol is present in the first set of time-frequency resources while occupied by the second reference signal, the second wireless signal and the third signal.

As one embodiment, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, the wireless sub-signals of the second wireless signal mapped into the first subset of time-frequency resources being punctured.

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

For one embodiment, the third transmitter 1601 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the second receiver 1602 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

For one embodiment, the third receiver 1603 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

Example 17

Embodiment 17 illustrates a block diagram of a structure in a third node, as shown in fig. 17. In fig. 17, the third node 1700 includes a fourth transmitter 1701.

A fourth transmitter 1701 that transmits the first reference signal;

in embodiment 17, first signaling is used to indicate a first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, the reception for the first radio signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal at each occupied RE is a third power value; at least one multicarrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the first set of time-frequency resources includes resource elements occupied by the second wireless signal, resource elements occupied by the second reference signal, and resource elements occupied by the third signal.

the first power level is not equal to the second power level;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

For one embodiment, the fourth transmitter 1701 includes at least the first 4 of the antenna 420, the transmitter 418, the multiple antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. First node and second node in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicles, vehicle, RSU, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control plane. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an over-the-air base station, an RSU, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node configured for wireless communication, comprising:

a first transmitter for transmitting a first signaling;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, the reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the sender of the first wireless signal is a second node and the sender of the first reference signal is a third node; the first wireless signal is a wireless signal on a secondary link, and the first reference signal is a reference signal on a cellular link; the second power value refers to a path loss between the first node and the third node; when the path loss between the first node and the second node is not changed, the first power value is not changed, and the third signal dynamically adjusts the power value in the multi-carrier symbol including the CSI-RS to ensure that the transmission power value on all the multi-carrier symbols included in the second wireless signal does not fluctuate.

2. The first node of claim 1, wherein the first set of time-frequency resources occupies a first set of multicarrier symbols in the time domain, wherein the second reference signal occupies a first subset of multicarrier symbols in the first set of multicarrier symbols in the time domain, and wherein the third signal is used to determine a transmit power value for each multicarrier symbol on the first subset of multicarrier symbols to be the same as a transmit power value on each multicarrier symbol in the first set of multicarrier symbols and outside the first subset of multicarrier symbols.

3. The first node of claim 1 or 2, wherein the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, wherein wireless sub-signals of the second wireless signal mapped to the first subset of time-frequency resources are punctured.

4. The first node according to claim 1 or 2, characterized in that the first signaling comprises a first field, the first set of time-frequency resources comprising a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, the first field being used to indicate the RE positions occupied by the third signal in the first subset of time-frequency resources.

5. The first node of claim 3, wherein the first signaling comprises a first field, wherein the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, and wherein the first field is used to indicate RE locations occupied by the third signal in the first subset of time-frequency resources.

6. The first node according to claim 1 or 2, characterized in that the first signaling comprises a second domain, the second domain being used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

7. The first node of claim 3, wherein the first signaling comprises a second field, wherein the second field is used to determine at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

8. The first node of claim 4, wherein the first signaling comprises a second field, wherein the second field is used to determine at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

9. The first node of claim 5, wherein the first signaling comprises a second field, wherein the second field is used to determine at least one of:

the first power level is not equal to the second power level;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

10. A second node for wireless communication, comprising:

a third transmitter that transmits the first wireless signal;

a second receiver receiving the first signaling;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by the sender of the first signaling for the reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multi-carrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; a sender of the first signaling is a first node, and a sender of the first reference signal is a third node; the first wireless signal is a wireless signal on a secondary link, and the first reference signal is a reference signal on a cellular link; the second power value refers to a path loss between the first node and the third node; when the path loss between the first node and the second node is not changed, the first power value is not changed, and the third signal dynamically adjusts the power value in the multicarrier symbol including the CSI-RS to ensure that the transmission power value on all the multicarrier symbols included in the second wireless signal does not fluctuate.

11. The second node according to claim 10, wherein the first set of time-frequency resources occupies a first set of multicarrier symbols in the time domain, the second reference signal occupies a first subset of multicarrier symbols in the first set of multicarrier symbols in the time domain, and the third signal is used to determine that the transmit power value of each multicarrier symbol on the first subset of multicarrier symbols is the same as the transmit power value on each multicarrier symbol in the first set of multicarrier symbols and outside the first subset of multicarrier symbols.

12. The second node of claim 10 or 11, wherein the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, wherein wireless sub-signals of the second wireless signal mapped to the first subset of time-frequency resources are punctured.

13. The second node according to claim 10 or 11, characterized in that the first signaling comprises a first field, the first set of time-frequency resources comprising a first subset of time-frequency resources reserved for transmission of the second radio signal and the second reference signal, the first field being used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

14. The second node according to claim 12, characterized in that the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

15. The second node according to claim 10 or 11, characterized in that the first signaling comprises a second field, the second field being used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

16. The second node according to claim 12, characterized in that the first signaling comprises a second field, the second field being used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

17. The second node according to claim 13, characterized in that the first signaling comprises a second field, the second field being used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

18. The second node according to claim 14, characterized in that the first signaling comprises a second field, the second field being used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

19. A method in a first node used for wireless communication, comprising:

receiving a first wireless signal and a first reference signal;

sending a first signaling;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmit power of the second reference signal over each resource element occupied is a first power value, the reception for the first wireless signal being used to determine the first power value; the average transmission power of the second radio signal on each resource element occupied is a second power value, the reception for the first reference signal being used to determine the second power value; the average transmission power of the third signal on each occupied resource particle is a third power value; at least one multicarrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; the sender of the first wireless signal is a second node and the sender of the first reference signal is a third node; the first wireless signal is a wireless signal on a secondary link, and the first reference signal is a reference signal on a cellular link; the second power value refers to a path loss between the first node and the third node; when the path loss between the first node and the second node is not changed, the first power value is not changed, and the third signal dynamically adjusts the power value in the multicarrier symbol including the CSI-RS to ensure that the transmission power value on all the multicarrier symbols included in the second wireless signal does not fluctuate.

20. The method in a first node according to claim 19, characterised in that the first set of time-frequency resources occupies a first set of multicarrier symbols in the time domain, the second reference signal occupies a first subset of multicarrier symbols in the first set of multicarrier symbols in the time domain, the third signal is used to determine the same transmit power value for each multicarrier symbol on the first subset of multicarrier symbols as on each multicarrier symbol in the first set of multicarrier symbols and outside the first subset of multicarrier symbols.

21. The method in the first node according to claim 19 or 20, wherein the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, wherein the wireless sub-signals of the second wireless signal mapped into the first subset of time-frequency resources are punctured.

22. The method in the first node according to claim 19 or 20, wherein the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second radio signal and the second reference signal, the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

23. The method in the first node according to claim 21, wherein the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

24. Method in a first node according to claim 19 or 20, wherein the first signalling comprises a second field, the second field being used for determining at least one of:

the first power value is not equal to the second power value;

-the third signal is included in the first set of time-frequency resources;

the difference between the first power value and the second power value.

25. The method in a first node according to claim 21, characterised in that the first signalling comprises a second domain, which is used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

26. The method in a first node according to claim 22, characterised in that the first signalling comprises a second domain, which is used for determining at least one of:

the first power value is not equal to the second power value;

-the third signal is included in the first set of time-frequency resources;

the difference between the first power value and the second power value.

27. Method in a first node according to claim 23, characterised in that the first signalling comprises a second field, which second field is used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

28. A method in a second node used for wireless communication, comprising:

transmitting a first wireless signal;

receiving a first signaling;

wherein the first signaling is used to indicate the first set of time-frequency resources; the average transmission power of the second reference signal on each resource element occupied is a first power value, which is used by the sender of the first signaling for the reception of the first wireless signal to determine; the average transmission power of the second radio signal on each resource element occupied is a second power value, which is used by the sender of the first signaling for the reception of the first reference signal; the average transmission power of each occupied RE of the third signal is a third power value; at least one multi-carrier symbol in the first set of time-frequency resources is simultaneously occupied by the second reference signal, the second wireless signal and the third signal; a sender of the first signaling is a first node, and a sender of the first reference signal is a third node; the first wireless signal is a wireless signal on a secondary link, and the first reference signal is a reference signal on a cellular link; the second power value refers to a path loss between the first node and the third node; when the path loss between the first node and the second node is not changed, the first power value is not changed, and the third signal dynamically adjusts the power value in the multi-carrier symbol including the CSI-RS to ensure that the transmission power value on all the multi-carrier symbols included in the second wireless signal does not fluctuate.

29. A method in a second node according to claim 28, characterised in that the first set of time-frequency resources occupies a first set of multicarrier symbols in the time domain, that the second reference signal occupies a first subset of multicarrier symbols of the first set of multicarrier symbols in the time domain, and that the third signal is used to determine the same transmission power value for each multicarrier symbol on the first subset of multicarrier symbols as on each multicarrier symbol in the first set of multicarrier symbols and outside the first subset of multicarrier symbols.

30. The method in the second node according to claim 28 or 29, wherein the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, wherein the wireless sub-signals of the second wireless signal mapped into the first subset of time-frequency resources are punctured.

31. The method in the second node according to claim 28 or 29, wherein the first signaling comprises a first field, wherein the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second radio signal and the second reference signal, and wherein the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

32. The method in the second node according to claim 30, wherein the first signaling comprises a first field, the first set of time-frequency resources comprises a first subset of time-frequency resources reserved for transmission of the second wireless signal and the second reference signal, the first field is used to indicate RE positions occupied by the third signal in the first subset of time-frequency resources.

33. A method in a second node according to claim 28 or 29, characterised in that the first signalling comprises a second field, the second field being used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

34. Method in a second node according to claim 30, characterised in that the first signalling comprises a second field, which second field is used for determining at least one of:

the first power value is not equal to the second power value;

-the third signal is included in the first set of time-frequency resources;

the difference between the first power value and the second power value.

35. The method in the second node according to claim 31, characterised in that the first signalling comprises a second domain, which is used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.

36. Method in a second node according to claim 32, characterised in that the first signalling comprises a second field, which second field is used for determining at least one of:

the first power value is not equal to the second power value;

-said third signal is included in said first set of time-frequency resources;

the difference between the first power value and the second power value.