CN112040494B

CN112040494B - Method and apparatus in a node used for wireless communication

Info

Publication number: CN112040494B
Application number: CN201910504603.8A
Authority: CN
Inventors: 吴克颖; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-12
Publication date: 2022-03-01
Anticipated expiration: 2039-06-12
Also published as: CN112040494A; WO2020244381A1

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node receives or transmits a first type of signal; transmitting or receiving signals of a second type; a first signal is transmitted. The measurements for the first type of signal are used to determine a first power and the measurements for the second type of signal are used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition. The method has the advantages of reflecting the power head space of the secondary link more accurately and improving the transmission performance and the resource utilization rate of the secondary link.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus related to a Sidelink (Sidelink) in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN.

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 making the requirements for the 5G V2X service 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, including: 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 over 3GPP RAN #80 congress.

Disclosure of Invention

Compared with the existing LTE (Long-term Evolution) V2X system, the NR V2X has a significant feature of supporting unicast and supporting power control based on path loss on a SideLink (SideLink). Based on the results of 3GPP RAN1#97 conference, when a UE (User Equipment) is configured with power control based on both Downlink (Downlink) and sidelink path loss, the UE selects the minimum of the powers generated by each of the two methods.

The inventor finds that the method has an influence on reporting of PHR (Power head space Report) on the sidelink through research. In view of the above, the present application discloses a solution. It should be noted that, in a non-conflicting situation, the features in the embodiments and embodiments in any node of the present application may be applied to the other two nodes. 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 type of signal or transmitting a first type of signal;

sending a second type of signal or receiving a second type of signal;

transmitting a first signal;

wherein measurements for the first type of signal are used to determine a first power and measurements for the second type of signal are used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As an embodiment, the problem to be solved by the present application includes: how to calculate the PHR report on the sidelink when the transmit power on the sidelink is constrained by both the downlink path loss based power control and the sidelink path loss based power control. The above method solves this problem by determining the reporting information based on the difference in power obtained by the two methods.

As an embodiment, the above method is characterized in that: the first power is a power obtained based on a downlink path loss, and the second power is a power obtained based on a secondary link path loss. The difference between the first power and the second power is used to determine the first information.

As an example, the benefits of the above method include: more accurately reflects the Power head space (Power head room) of the sidelink.

As an example, the benefits of the above method include: the performance reduction of the sidelink caused by the serious restriction of the transmission power on the sidelink by the power control based on the downlink path loss is avoided.

According to one aspect of the application, the method is characterized by comprising the following steps:

receiving a first signaling;

wherein the first signaling is used for determining the time-frequency resource occupied by the first signal.

According to one aspect of the application, the first information comprises a first difference, and the first power and the second power are used to determine the first difference.

According to an aspect of the present application, the first condition includes that a difference between the second power and the first power is greater than a first threshold.

receiving third information;

wherein measurements for the second type of signal are used to determine the third information, which is used to determine the second power; the first node transmits the second type of signal.

receiving fourth information;

wherein measurements for the first type of signal are used to determine the fourth information, which is used to determine the first power; the first node transmits the first type of signal.

According to one aspect of the application, characterized in that measurements for the second type of signal are used to determine K path losses, K being a positive integer greater than 1; the K path losses are used to determine the second power.

transmitting a second signal;

wherein the transmission power of the second signal is a minimum value of the first power and the second power.

receiving second information;

transmitting a third signal in a second time window;

wherein the second information is used to determine a transmit power of the third signal; the second time window is later than the time domain resource occupied by the first signal.

According to one aspect of the application, the first node is a user equipment.

According to an aspect of the application, it is characterized in that the first node is a relay node.

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

transmitting a first type of signal or receiving a first type of signal;

receiving a first signal;

wherein measurements for signals of the first type are used to determine a first power and measurements for signals of a second type are used to determine a second power, the signals of the second type being transmitted by a node different from the sender of the signals of the first type; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

sending a first signaling;

sending fourth information;

wherein measurements for the first type of signal are used to determine the fourth information, which is used to determine the first power; the second node receives the first type of signal.

sending the second information;

wherein the second information is used to determine a transmit power of a third signal; the third signal is transmitted in a second time window, which is later than the time domain resources occupied by the first signal.

According to an aspect of the application, it is characterized in that the second node is a base station device.

According to one aspect of the application, the second node is a user equipment.

According to an aspect of the application, it is characterized in that the second node is a relay node.

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

receiving a target second-type sub-signal or sending the target second-type sub-signal;

wherein measurements for a first type of signal transmitted by a node other than the sender of the target second type of sub-signal are used to determine a first power; the second type of signal comprises the target second type of sub-signal, measurements for the second type of signal being used to determine a second power; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

sending the target third sub information;

wherein measurements for the target second type of sub-signal are used to determine the target third sub-information; third information comprising the target third sub-information, the third information being used to determine the second power; the third node receives the target second-type sub-signal.

receiving a second signal;

receiving a third signal in a second time window;

wherein the second time window is later than a time domain resource used to transmit the first information.

According to one aspect of the application, the third node is a user equipment.

According to one aspect of the application, it is characterized in that the third node is a relay node.

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

the first processor receives the first type of signals or transmits the first type of signals, and transmits the second type of signals or receives the second type of signals;

a first transmitter that transmits a first signal;

The present application discloses a second node device used for wireless communication, comprising:

the second processor is used for transmitting the first type of signals or receiving the first type of signals;

a second receiver receiving the first signal;

wherein the measurements for the first type of signal are used to determine a first power and the measurements for the second type of signal are used to determine a second power, the second type of signal being transmitted by a node device different from the sender of the first type of signal; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

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

the third processor receives the target second-type sub-signal or sends the target second-type sub-signal;

wherein measurements for a first type of signal transmitted by a node device other than the sender of the target second type of sub-signal are used to determine a first power; the second type of signal comprises the target second type of sub-signal, measurements for the second type of signal being used to determine a second power; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

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

more accurately reflects the Power head space (Power Headroom) of the Sidelink (Sidelink).

The performance reduction of the sidelink caused by the serious restriction of the transmission power on the sidelink by the power control based on the downlink path loss is avoided.

And the transmission performance and the resource utilization rate of the secondary link are improved.

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 shows a flow diagram of a first type of signal, a second type of signal, and a first signal according to an embodiment of the 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 a transmission according to an embodiment of the present application;

FIG. 6 shows a flow diagram of a transmission according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a first power according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a second power according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a second power according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of the sending of a first message being triggered by a first condition according to an embodiment of the application;

figure 11 shows a schematic diagram of first signaling according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of first information including a first difference value according to an embodiment of the present application;

FIG. 13 shows a schematic diagram of a first condition according to an embodiment of the present application;

FIG. 14 shows a schematic diagram of first information comprising first sub-information according to an embodiment of the present application;

fig. 15 shows a schematic diagram of measurements for a second type of signal used to determine K path losses according to an embodiment of the present application;

fig. 16 shows a diagram where K path losses are used to determine the second power according to an embodiment of the application;

fig. 17 shows a diagram where K path losses are used to determine the second power according to an embodiment of the application;

FIG. 18 shows a schematic diagram of a second signal according to an embodiment of the present application;

FIG. 19 shows a schematic diagram of second information according to an embodiment of the present application;

figure 20 shows a schematic diagram of a first node transmitting a third signal in a second time window according to an embodiment of the present application;

FIG. 21 shows a block diagram of a processing apparatus for use in a first node device, according to an embodiment of the present application;

figure 22 shows a block diagram of a processing arrangement for a device in a second node according to an embodiment of the present application;

figure 23 shows a block diagram of a processing arrangement for a device in a third node according to an embodiment of the present application;

FIG. 24 shows a flow diagram of a transmission according to an embodiment of the present application;

FIG. 25 shows a flow diagram of a transmission according to an embodiment of the present application;

FIG. 26 shows a schematic diagram of third information according to an embodiment of the present application;

FIG. 27 shows a diagram of fourth information, 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 flow chart of a first type of signal, a second type of signal and a first signal according to an embodiment of the present application, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In particular, the order of steps in blocks does not represent a particular chronological relationship between the various steps.

In embodiment 1, the first node in this application receives a first type of signal or transmits a first type of signal in step 101; transmitting or receiving a second type of signal in step 102; in step 103 a first signal is transmitted. Wherein measurements for the first type of signal are used to determine a first power and measurements for the second type of signal are used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

In one embodiment, the first node receives the first type of signal and transmits the second type of signal.

For one embodiment, the first node receives the first type of signal and receives the second type of signal.

In one embodiment, the first node transmits the first type of signal and transmits the second type of signal.

In one embodiment, the first node transmits the first type of signal and receives the second type of signal.

As an embodiment, the first type of signal is a wireless signal.

As an embodiment, the first type of signal is a baseband signal.

For one embodiment, the first type of signal includes a reference signal.

For one embodiment, the first type of signal includes a DL (DownLink) reference signal.

As an embodiment, the first type of signal includes a SL (SideLink) reference signal.

As an embodiment, the first type of signal includes a CSI-RS (Channel-State Information references Signals).

As an example, the first type of Signal comprises a SS/PBCH block (Synchronization Signal/Physical Broadcast Channel block).

As an embodiment, the first type of signal is transmitted over a Uu interface.

As an embodiment, the first type of signal is transmitted through a link between a base station device and a user equipment.

As an embodiment, the first type of signal is transmitted over a downlink.

As an embodiment, the first type of signal is transmitted through a sidelink.

As an embodiment, the first type of signal occurs multiple times in the time domain.

As an embodiment, the first type of signal only occurs once in the time domain.

As an embodiment, the second type of signal is a wireless signal.

As an embodiment, the second type of signal is a baseband signal.

For one embodiment, the second type of signal includes a reference signal.

For one embodiment, the second type of signal includes a SL reference signal.

For one embodiment, the second type of signal includes a UL (UpLink) reference signal.

For one embodiment, the second type of signal includes a CSI-RS.

For one embodiment, the second type of signal includes a SL CSI-RS.

As an embodiment, the second type of Signal includes SRS (Sounding Reference Signal).

As an embodiment, the second type signal includes DMRS (DeModulation Reference Signals).

As an example, the second type of Signal includes SS (Synchronization Signal).

For one embodiment, the second type of signal includes a SL SS.

For one embodiment, the second type of signal comprises a SL SSB (SS/PBCH block).

For one embodiment, the second type of signal is transmitted through a Pc5 interface.

As an embodiment, the second type of signal is transmitted over the user equipment and a link between the user equipment.

As an embodiment, the second type of signal is transmitted through a sidelink.

As an embodiment, the second type of signal is transmitted over an uplink.

As an embodiment, the second type of signal occurs multiple times in the time domain.

As an embodiment, the second type of signal only occurs once in the time domain.

As an embodiment, the first type of signal and the second type of signal belong to the same Carrier (Carrier) in the frequency domain.

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

As an example, the second power is in dBm (decibels).

For one embodiment, the first type of signal is transmitted on a first type of link and the second type of signal is transmitted on a second type of link.

As a sub-embodiment of the above embodiment, the first type of link is DL, and the second type of link is SL.

As a sub-embodiment of the above embodiment, the first type of link is SL, and the second type of link is SL.

As a sub-embodiment of the foregoing embodiment, the first type link is a link between a base station device and a user equipment, and the second type link is a link between a user equipment and a user equipment.

As a sub-embodiment of the foregoing embodiment, the first type link and the second type link are links between a user equipment and a user equipment, respectively.

As one embodiment, the sentence wherein the measurement for the first type of signal is used to determine the first power comprises: measurements for the first type of signal are used to determine a first path loss, which is used to determine the first power.

As one embodiment, the sentence wherein the measurement for the second type of signal is used to determine the second power comprises: measurements for the second type of signal are used to determine a second path loss, which is used to determine the second power.

As one embodiment, the first signal is a wireless signal.

As one embodiment, the first signal is a baseband signal.

As an embodiment, the first signal is transmitted over a Uu interface.

As an embodiment, the first signal is transmitted through a link between a base station apparatus and a user equipment.

As one embodiment, the first signal is transmitted over an uplink.

As one embodiment, the first signal is transmitted through a sidelink.

As an embodiment, the first signal is transmitted on a PUSCH (Physical Uplink Shared CHannel).

As an embodiment, the first signal is transmitted on a PUCCH (Physical Uplink Control CHannel).

As an embodiment, a block of information bits of said first information is used for generating said first signal.

As an embodiment, the first information is carried by higher layer (higher layer) signaling.

As an embodiment, the first information is carried by a MAC CE (Medium Access Control layer Control Element) signaling.

As an embodiment, the first information includes a MAC CE.

As an embodiment, the first information includes all or part of information in one MAC CE.

As an embodiment, the first information includes a PHR (Power head room Report).

As one embodiment, the first information includes second sub-information indicating that the first information is for a link between a user equipment and a user equipment.

As one embodiment, the first information includes second sub information indicating that the first information is for a secondary link.

As one embodiment, the first information includes second sub-information indicating that the first information is for a link used to transmit the second type of reference signal.

As one embodiment, the first information includes second sub-information indicating that the first information is not for a link used for transmitting the first type of reference signal.

As an embodiment, a difference of the second power and the first power is used for determining the first information.

As an embodiment, the first information is used to determine a difference between the second power and the first power.

As one embodiment, the first information indicates a difference between the second power and the first power.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in fig. 2.

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced) and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved Packet System) 200. EPS200 may include one or more UEs (User Equipment) 201, a UE241 in Sidelink (sildelink) communication with UE201, NG-RAN (next generation radio access network) 202, 5G-CN (5G-Core network, 5G Core network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 230. The EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the EPS200 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. The NG-RAN202 includes NR (New Radio ) node bs (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an X2 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 (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through an S1 interface. The 5G-CN/EPC210 includes an MME (Mobility Management Entity)/AMF (Authentication Management domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 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 internet, intranet, IMS (IP Multimedia Subsystem) and Packet switching (Packet switching) services.

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

As an embodiment, the first node in this application includes the UE 241.

As an embodiment, the second node in this application includes the gNB 203.

As an embodiment, the second node in this application includes the UE 241.

As an embodiment, the third node in this application includes the UE 241.

As an embodiment, the third node in this application includes the UE 201.

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

For one embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

For one embodiment, the air interface between the UE201 and the UE241 is a PC-5 interface.

As an embodiment, the wireless link between the UE201 and the UE241 is a Sidelink (Sidelink).

As an embodiment, the first node in this application and the third node in this application are respectively one terminal within the coverage of the gNB 203.

As an embodiment, the first node in this application is a terminal in the coverage of the gNB203, and the third node in this application is a terminal outside the coverage of the gNB 203.

As an embodiment, the third node in this application is a terminal within the coverage of the gNB 203.

As an embodiment, the third node in this application is a terminal outside the coverage of the gNB 203.

As an embodiment, Unicast (Unicast) transmission is supported between the UE201 and the UE 241.

As an embodiment, Broadcast (Broadcast) transmission is supported between the UE201 and the UE 241.

As an embodiment, the UE201 and the UE241 support multicast (Groupcast) transmission.

As an embodiment, the sender of the first type of signal in this application includes the gNB 203.

As an embodiment, the receivers of the first type of signals in this application include the UE 201.

As an embodiment, the sender of the second type of signal in this application includes the UE 241.

As an embodiment, the receiver of the second type of signal in this application includes the UE 201.

As an embodiment, the sender of the first signal in the present application includes the UE 201.

As an embodiment, the receiver of the first signal in this application includes the gNB 203.

Example 3

Embodiment 3 illustrates 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, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the UE and the gNB 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 UE and the gNB through PHY 301. In the user plane, 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 gNB on the network side. Although not shown, the UE may have several protocol layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer packets to reduce radio transmission overhead, security by ciphering the packets, and handover support for UEs between gnbs. 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 (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

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

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

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

As an embodiment, the first type of signal in this application is generated in the PHY 301.

As an example, the second type of signal in this application is generated in the PHY 301.

As an example, the first signal in this application is generated in the PHY 301.

As an embodiment, the first information in this application is generated in the PHY 301.

As an embodiment, the first signaling in this application is generated in the PHY 301.

As an embodiment, the first signaling in this application is generated in the MAC sublayer 302.

As an example, the second signal in this application is generated in the PHY 301.

As an example, the third signal in this application is generated in the PHY 301.

As an embodiment, the second information in this application is generated in the MAC sublayer 302.

As an embodiment, the second information in this application is generated in the RRC sublayer 306.

Example 4

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

The first communications 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.

The second 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.

In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for 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 450, as well as constellation mapping 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 processing on the coded and modulated symbols to generate one or more parallel streams. Transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols 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 first communications device 410 to the second communications device 450, at the second communications device 450, each receiver 454 receives a signal through its respective antenna 452. 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 parallel streams destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in 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 first 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 the DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data 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. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

In a transmission from the second communications device 450 to the first communications device 410, a data source 467 is used at the second 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 transmit function at the first communications apparatus 410 described in the DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications apparatus 410, implementing L2 layer functions for the user plane and the control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to said first 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 resulting parallel streams are then modulated by the transmit processor 468 into multi-carrier/single-carrier symbol streams, subjected to analog precoding/beamforming in the multi-antenna transmit processor 457, and provided to different antennas 452 via a transmitter 454. 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 second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives 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. 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 second communication device 450. Upper layer data packets from the controller/processor 475 may be provided to a core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As an embodiment, the second communication device 450 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 450 apparatus at least: receiving or transmitting the first type of signal in the application; transmitting or receiving the second type of signal in the application; the first signal in this application is transmitted. Wherein measurements for the first type of signal are used to determine a first power and measurements for the second type of signal are used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As an embodiment, the second 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 or transmitting the first type of signal in the application; transmitting or receiving the second type of signal in the application; the first signal in this application is transmitted. Wherein measurements for the first type of signal are used to determine a first power and measurements for the second type of signal are used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As an embodiment, the first communication device 410 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 first communication device 410 means at least: transmitting or receiving the first type of signal in the application; the first signal in this application is received. Wherein measurements for signals of the first type are used to determine a first power and measurements for signals of a second type are used to determine a second power, the signals of the second type being transmitted by a node different from the sender of the signals of the first type; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting or receiving the first type of signal in the application; the first signal in this application is received. Wherein measurements for signals of the first type are used to determine a first power and measurements for signals of a second type are used to determine a second power, the signals of the second type being transmitted by a node different from the sender of the signals of the first type; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As an embodiment, the first communication device 410 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 first communication device 410 means at least: receiving or transmitting the target second type sub-signal in the application. Wherein measurements for a first type of signal transmitted by a node other than the sender of the target second type of sub-signal are used to determine a first power; the second type of signal comprises the target second type of sub-signal, measurements for the second type of signal being used to determine a second power; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As one embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving or transmitting the target second type sub-signal in the application. Wherein measurements for a first type of signal transmitted by a node other than the sender of the target second type of sub-signal are used to determine a first power; the second type of signal comprises the target second type of sub-signal, measurements for the second type of signal being used to determine a second power; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

As an embodiment, the first node in this application comprises the second communication device 450.

As an embodiment, the second node in this application comprises the first communication device 410.

As an embodiment, the third node in this application comprises the second communication device 410.

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the first type of signal in this application; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the first type of signal in this application.

As an example, at least one of { the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used to receive the first type of signal in this application; { the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, the data source 467}, at least one of which is used to transmit the first type of signal in this application.

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the second type of signal in this application; at least one of { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used to transmit the target second type sub-signal in this application.

As an example, at least one of { the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used to receive the second type of signal in this application; { the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, the data source 467}, at least one of which is used to transmit the second type of signal in this application.

As an example, at least one of { the antenna 420, the receiver 418, the reception processor 470, the multi-antenna reception processor 472, the controller/processor 475, the memory 476} is used to receive the first signal in this application; { the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, the data source 467}, at least one of which is used to transmit the first signal in this application.

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the third information in this application; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the third information in this application.

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the fourth information in this application; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the fourth information in this application.

As one example, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467 is used to receive the first signaling in this application; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the first signaling in this application.

As one example, at least one of { the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used to receive the second signal in this application; { the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, the data source 467}, at least one of which is used to transmit the second signal in this application.

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the second information in this application; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the second information in this application.

As one example, at least one of { the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used to receive the third signal in the second time window in this application; { the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, the data source 467}, is used to transmit the third signal in this application in the second time window in this application.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the second node U1, the first node U2, and the third node U3 are each communication nodes that communicate over the air interface between each other. In fig. 5, the steps in blocks F51 through F57, respectively, are optional.

The second node U1, which transmits the first type signal in step S511; transmitting second signaling in step S5101; transmitting a first signaling in step S5102; receiving a first signal in step S512; transmitting the second information in step S5103; the third signaling is sent in step S5104.

A first node U2 receiving a first type signal in step S521; transmitting a second type signal in step S522; receiving third information in step S5201; receiving a second signaling in step S5202; transmitting a second signal in step S5203; receiving a first signaling in step S5204; transmitting a first signal in step S523; receiving the second information in step S5205; receiving a third signaling in step S5206; the third signal is transmitted in the second time window in step S5207.

The third node U3, receiving the second type signal in step S531; transmitting the third information in step S5301; receiving the second signal in step S5302; in step S5303, the third signal is received in a second time window.

In embodiment 5, measurements for the first type of signal are used by the first node U2 to determine a first power, and measurements for the second type of signal are used by the first node U2 to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition. The measurement for the second type of signal is used by the third node U3 to determine the third information, which is used by the first node U2 to determine the second power. The first signaling is used by the first node U2 to determine the time-frequency resources occupied by the first signal. The second signaling is used by the first node U2 to determine the time-frequency resources occupied by the second signal; the transmission power of the second signal is the minimum of the first power and the second power. The second information is used by the first node U2 to determine a transmit power of the third signal; the third signaling is used by the first node U2 to determine the time-frequency resources occupied by the third signal; the second time window is later than the time domain resource occupied by the first signal.

As an example, the first node U2 is the first node in this application.

As an example, the second node U1 is the second node in this application.

As an example, the third node U3 is the third node in this application.

For one embodiment, the air interface between the second node U1 and the first node U2 is a Uu interface.

For one embodiment, the air interface between the second node U1 and the first node U2 includes a cellular link.

For one embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between a relay node and a user equipment.

For one embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between user equipment and user equipment.

For one embodiment, the air interface between the third node U3 and the first node U2 is a PC5 interface.

For one embodiment, the air interface between the third node U3 and the first node U2 includes a sidelink.

For one embodiment, the air interface between the third node U3 and the first node U2 comprises a wireless interface between user equipment and user equipment.

As an embodiment, the air interface between the third node U3 and the first node U2 comprises a wireless interface between a user equipment and a relay node.

As an embodiment, the first node in this application is a terminal.

As an example, the first node in the present application is an automobile.

As an example, the first node in the present application is a vehicle.

As an example, the first node in this application is an RSU (Road Side Unit).

As an embodiment, the second node in this application is a terminal.

As an embodiment, the third node in this application is a terminal.

As an example, the third node in this application is a car.

As an example, the third node in the present application is a vehicle.

As an embodiment, the third node in this application is an RSU.

As an embodiment, the second type signal is the target second type sub-signal in this application.

As an embodiment, the second type of signal only comprises the target second type of sub-signal in the present application.

As an embodiment, the second type of signal is composed of the target second type of sub-signal in the present application.

As an embodiment, the third information is the target third sub information in the present application.

As an embodiment, the third information is composed of the target third sub information in the present application.

As an embodiment, the third information includes only the target third sub information in the present application.

As an embodiment, said sentence, said second type of signal being transmitted by a node different from a sender of said first type of signal, comprises: the sender of the second type of signal is a user equipment and the sender of the first type of signal is a base station.

As an embodiment, said sentence, said first type of signal being transmitted by a node different from a sender of said target second type of sub-signal comprises: the sender of said first type of signal is a base station and the sender of said target second type of sub-signal is a user equipment.

As an embodiment, said sentence, said second type of signal being transmitted by a node different from a sender of said first type of signal, comprises: the sender of the second type of signal and the sender of the first type of signal are user equipment respectively, and the identification of the sender of the second type of signal is different from the identification of the sender of the first type of signal.

As an embodiment, said sentence, said first type of signal being transmitted by a node different from a sender of said target second type of sub-signal comprises: the sender of the first type signal and the sender of the target second type sub-signal are user equipment respectively, and the identification of the sender of the first type signal is different from the identification of the sender of the target second type sub-signal.

As an embodiment, the Identifier includes C (Cell ) -RNTI (Radio Network Temporary Identifier).

As an embodiment, the identifier includes an IMSI (International Mobile Subscriber identity Number).

For one embodiment, the Identity includes an S-TMSI (SAE temporal Mobile Subscriber Identity).

For one embodiment, the first information includes a first difference value, and the first power and the second power are used by the first node U2 to determine the first difference value.

For one embodiment, the first condition includes a difference between the second power and the first power being greater than a first threshold.

As one embodiment, the first information includes first sub information indicating that a difference between the second power and the first power is greater than the first threshold.

As one embodiment, the second signaling is layer 1(L1) signaling.

As an embodiment, the second signaling is layer 1(L1) control signaling.

As an embodiment, the second signaling includes DCI (Downlink Control Information).

As one embodiment, the second signaling includes one or more fields (fields) in the DCI.

As an embodiment, the second signaling indicates a time-frequency resource occupied by the second signal.

As an embodiment, the second signaling is transmitted through a Uu interface.

As an embodiment, the second signaling is transmitted on a PDCCH (Physical Downlink Control Channel).

As an embodiment, the third signaling is layer 1(L1) signaling.

As an embodiment, the third signaling is layer 1(L1) control signaling.

As one embodiment, the third signaling includes DCI.

As one embodiment, the third signaling includes one or more fields (fields) in the DCI.

As an embodiment, the third signaling indicates a time-frequency resource occupied by the third signal.

As an embodiment, the third signaling is transmitted through a Uu interface.

As an embodiment, the third signaling is transmitted on a PDCCH.

As an embodiment, the time domain resource occupied by the third signaling belongs to the second time window.

Example 6

Embodiment 6 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in fig. 6. In fig. 6, the second node U4, the first node U5, and the third node U6 are each communication nodes that communicate over the air interface between each other. In fig. 6, the steps in block F61 and block F62, respectively, are optional.

A second node U4, receiving the first type signal in step S641; the fourth information is transmitted in step S6401.

The first node U5, which transmits the first type signal in step S651; receiving fourth information in step S6501; receiving a target second-type sub-signal in step S652; in step S6502, K-1 sub-signals of the second type other than the target sub-signal of the second type are received.

The third node U6, in step S661, transmits the target second-type sub-signal.

In embodiment 6, measurements for signals of the first type are used by the first node U5 to determine a first power and measurements for signals of the second type are used by the first node U5 to determine a second power. The second class of signals comprises the K second class of sub-signals, K being a positive integer greater than 1, the target second class of sub-signals being one of the K second class of sub-signals. The measurements for the first type of signal are used by the second node U4 to determine the fourth information, which is used by the first node U5 to determine the first power. As an embodiment, the measurements for the K second class of sub-signals are used by the first node U5 to determine the K path losses in the present application, respectively, which are used by the first node U5 to determine the second power. As an embodiment, a sender of any one of the K-1 sub-signals of the second class is different from the third node.

As an embodiment, the identity of the sender of any one of the K-1 sub-signals of the second type is different from the identity of the third node.

Example 7

Embodiment 7 illustrates a schematic diagram of a first power according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the first power is the minimum of a first reference power and a first power threshold; the first reference power and first path loss are linearly related, and measurements for the first type of signal in this application are used to determine the first path loss; a linear coefficient between the first reference power and the first path loss is a first coefficient. The symbol "oc" in fig. 7 indicates a linear correlation.

As an embodiment, the first loss is equal to a transmission Power of the first type Signal minus RSRP (Reference Signal Received Power) of the first type Signal.

As one embodiment, the first path loss is PL_b,f,c(q_d) The index of said first type signal is said q_d。

As an embodiment, the first node in this application sends the first type of signal, and the fourth information in this application is used to determine the first path loss.

As an embodiment, the first power threshold is a transmit power threshold for the uplink.

As an embodiment, the first power threshold is a transmission power threshold of PUSCH.

As an example, the first power threshold is in dBm (decibels).

For one embodiment, the first power threshold is P_CMAX,f,c(i)。

As an example, the first reference power is in dBm (decibels).

As one embodiment, the first coefficient is a non-negative real number less than or equal to 1.

As an embodiment, the first coefficient is α_b,f,c(j)。

As an embodiment, the first coefficient is configured by a higher layer (higher layer) parameter.

As an embodiment, the first reference power and the first component are linearly related, a linear coefficient between the first reference power and the first component is 1; the first component is a power reference.

As mentioned aboveIn a sub-embodiment, the first component is P_{0_PUSCH,b,f,c}(j)。

As a sub-embodiment of the above embodiment, the first component is P for uplink power control₀(j)。

As a sub-embodiment of the above embodiment, the first component is P for PUSCH power control₀(j)。

As a sub-embodiment of the above embodiment, the first component is configured by higher layer parameters.

As an embodiment, the first reference power and the second component are linearly related, and a linear coefficient between the first reference power and the second component is 1; the second component is associated with the first bandwidth.

As a sub-embodiment of the above embodiment, the first bandwidth is a bandwidth expressed in number of RBs (Resource blocks) to which the first signal is allocated.

As a sub-embodiment of the above embodiment, the first bandwidth is a bandwidth expressed in number of RBs to which the PUSCH is allocated.

As a sub-embodiment of the above embodiment, the first bandwidth is a bandwidth expressed in number of RBs.

As a sub-embodiment of the above embodiment, the first bandwidth is preconfigured.

As a sub-embodiment of the above embodiment, the second component is

The first bandwidth is

As an embodiment, the first reference power and the third component are linearly related, a linear coefficient between the first reference power and the third component is 1, and the third component is Δ_TF,b,f,c(i)。

As an embodiment, the first reference power and the fourth component are linearly related, a linear coefficient between the first reference power and the fourth component is 1, and the fourth component is a state of power control adjustment.

As a sub-embodiment of the above embodiment, the fourth component is f_b,f,c(i,l)。

As an embodiment, the first reference power is linearly related to the first path loss, the first component, the second component, the third component and the fourth component, respectively. A linear coefficient between the first reference power and the first path loss is the first coefficient; linear coefficients between the first reference power and the first component, the second component, the third component and the fourth component are 1, respectively.

Example 8

Embodiment 8 illustrates a schematic diagram of a second power according to an embodiment of the present application; as shown in fig. 8. In embodiment 8, the second power is the minimum of a second reference power and a second power threshold; the second reference power and second path loss are linearly related, and the measurement for the second type of signal in this application is used to determine the second path loss; a linear coefficient between the second reference power and the second path loss is a second coefficient. The symbol "oc" in fig. 8 indicates a linear correlation.

As an embodiment, the second path loss is equal to the transmission power of the second type of signal minus RSRP of the second type of signal.

As one embodiment, the second loss is PL.

As an embodiment, the first node in this application sends the second type of signal, and the third information in this application is used to determine the second path loss.

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

For one embodiment, the second power threshold is P_CMAX,PSSCH。

As an example, the second reference power is in dBm (decibels).

As one embodiment, the second coefficient is a non-negative real number less than or equal to 1.

As an embodiment, the second coefficient is α_PSSCH。

As an embodiment, the second coefficient is a for power control on the secondary link.

As an embodiment, the second coefficient is configured by a higher layer (higher layer) parameter.

As an embodiment, the second reference power and the fifth component are linearly related, a linear coefficient between the second reference power and the fifth component being 1; the fifth component is a power reference.

As a sub-embodiment of the above embodiment, the fifth component is P for power control on the secondary link₀。

As a sub-embodiment of the above embodiment, the fifth component is P_{0_PSSCH}。

As a sub-embodiment of the above embodiment, the fifth component is configured by a higher layer (higher layer) parameter.

As an embodiment, the second reference power and the sixth component are linearly related, and a linear coefficient between the second reference power and the sixth component is 1; the sixth component relates to the second bandwidth.

As a sub-embodiment of the above embodiment, the second bandwidth is a bandwidth expressed in number of RBs to which the second signal is allocated.

As a sub-embodiment of the above embodiment, the second bandwidth is a bandwidth expressed by the number of RBs to which a psch (Physical Sidelink Shared Channel) is allocated.

As a sub-embodiment of the above embodiment, the second bandwidth is a bandwidth expressed in number of RBs.

As a sub-embodiment of the above embodiment, the second bandwidth is pre-configured.

As a sub-embodiment of the above-described embodiment, theThe sixth component is 10log₁₀(2^μM_PSSCH) The second bandwidth is M_PSSCH。

As a sub-embodiment of the above embodiment, the sixth component is 10log₁₀(M_PSSCH) The second bandwidth is M_PSSCH。

As an embodiment, the second reference power is linearly related to the second path loss, the fifth component and the sixth component, respectively. A linear coefficient between the second reference power and the second path loss is the second coefficient; linear coefficients between the second reference power and the fifth and sixth components are 1, respectively.

As an embodiment, the first information in this application includes the second power threshold.

Example 9

Embodiment 9 illustrates a schematic diagram of a second power according to an embodiment of the present application; as shown in fig. 9. In embodiment 9, the second power is linearly related to a third reference power, and a linear coefficient between the second power and the third reference power is 1; the third reference power is the minimum of a fourth reference power and a third power threshold, the fourth reference power and a second path loss being linearly related, a measurement for the second type of signal in the present application being used to determine the second path loss; a linear coefficient between the fourth reference power and the second path loss is a third coefficient. In FIG. 9, the symbol "oc" indicates a linear correlation.

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

As one embodiment, the third power threshold is P_CMAX。

As an embodiment, the third power threshold is the minimum of the fourth power threshold and the fifth power threshold.

As a sub-embodiment of the above embodiment, the unit of the fourth power threshold is dBm.

As a sub-embodiment of the above embodiment, the unit of the fifth power threshold is dBm.

As a sub-embodiment of the above embodiment, the fourth power threshold is P_CMAX。

As a sub-embodiment of the above embodiment, the fifth power threshold is P_{MAX_CBR}。

As an example, the third reference power is in dBm (decibels).

As an example, the fourth reference power has a unit of dBm (decibels).

As an embodiment, the second power is equal to a sum of the third reference power and a fifth reference power, the fifth reference power being related to a third bandwidth and a fourth bandwidth, respectively.

As a sub-embodiment of the above embodiment, the third bandwidth is a bandwidth expressed by the number of RBs to which the PSCCH is allocated, and the fourth bandwidth is a bandwidth expressed by the number of RBs to which the PSCCH (Physical Sidelink Control Channel) is allocated.

As a sub-embodiment of the above embodiment, the third bandwidth and the fourth bandwidth are each M_PSSCHAnd M_PSCCH。

As a sub-embodiment of the above embodiment, the bandwidth expressed in RB number to which the second signal is allocated in the present application includes the third bandwidth.

As a sub-embodiment of the above embodiment, the bandwidth expressed in RB number to which the second signal is allocated in the present application includes the fourth bandwidth.

As a sub-embodiment of the above embodiment, the third bandwidth and the fourth bandwidth are bandwidths expressed in number of RBs, respectively.

As a sub-embodiment of the above embodiment, the third bandwidth and the fourth bandwidth are each preconfigured.

As an embodiment, the third coefficient is a non-negative real number less than or equal to 1.

As an example, the thirdCoefficient is alpha_PSSCH。

As an embodiment, the third coefficient is a for power control on the secondary link.

As an embodiment, the third coefficient is configured for higher layer parameters.

As an embodiment, the fourth reference power and the seventh component are linearly related, and a linear coefficient between the fourth reference power and the seventh component is 1; the seventh component is a power reference.

As a sub-embodiment of the above embodiment, the seventh component is P for power control on the secondary link₀。

As a sub-embodiment of the above embodiment, the seventh component is P_{0_PSSCH}。

As a sub-embodiment of the above embodiment, the seventh component is configured by higher layer parameters.

As an embodiment, the fourth reference power and the eighth component are linearly related, and a linear coefficient between the fourth reference power and the eighth component is 1; the eighth component is associated with the third bandwidth and the fourth bandwidth, respectively.

As an embodiment, the fourth reference power is linearly related to the second path loss, the seventh component and the eighth component, respectively. A linear coefficient between the fourth reference power and the second path loss is the third coefficient; linear coefficients between the fourth reference power and the seventh and eighth components are 1, respectively.

As an embodiment, the first information in this application includes the fifth power threshold.

Example 10

Embodiment 10 illustrates a schematic diagram in which transmission of first information is triggered by a first condition according to an embodiment of the present application; as shown in fig. 10.

As an embodiment, the sending of the sentence of the first information triggered by the first condition comprises: when the first condition is not satisfied, the first information is not transmitted.

As an embodiment, the sending of the sentence of the first information triggered by the first condition comprises: the first information is transmitted when the first condition is satisfied.

As an embodiment, the sending of the sentence of the first information triggered by the first condition comprises: when the first condition is not satisfied, the sending of the first information is not triggered.

As an embodiment, the sending of the sentence of the first information triggered by the first condition comprises: when the first condition is satisfied, the sending of the first information is triggered. As an embodiment, the first condition includes: the first timer has expired.

As a sub-embodiment of the above embodiment, the first timer is configured for higher layer (higher layer) signaling.

As a sub-embodiment of the above embodiment, the first timer is configured by RRC signaling.

As a sub-embodiment of the above embodiment, the first timer is for a user equipment and a link between user equipments.

As a sub-embodiment of the above-mentioned embodiments, the first timer is for a link between the base station apparatus and the user equipment.

As a sub-embodiment of the above embodiment, the first timer is for a link used for transmitting the first type of signal in the present application.

As a sub-embodiment of the above embodiment, the first timer is for a link used for transmitting the second type of signal in the present application.

As a sub-embodiment of the above embodiment, the first timer is phr-PeriodicTimer.

As a sub-embodiment of the above embodiment, the first timer is phr-ProhibitTimer.

As an embodiment, the first condition includes: both the third timer and the second timer have expired.

As a sub-embodiment of the above embodiment, the third timer and the second timer are respectively configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the third timer and the second timer are respectively configured by RRC signaling.

As a sub-embodiment of the foregoing embodiment, the third timer is for a link between the base station apparatus and the user equipment, and the second timer is for a link between the user equipment and the user equipment.

As a sub-embodiment of the above embodiment, the third timer is for a link used for transmitting the first type of signal in the present application, and the second timer is for a link used for transmitting the second type of signal in the present application.

As a sub-embodiment of the above embodiment, the second timer is phr-PeriodicTimer.

As a sub-embodiment of the above embodiment, the second timer is phr-ProhibitTimer.

As a sub-embodiment of the above embodiment, the third timer is phr-PeriodicTimer.

As a sub-embodiment of the above embodiment, the third timer is phr-ProhibitTimer.

As an example, the specific definition of phr-PeriodicTimer participates in 3GPP TS 38.331.

As an example, the specific definition of phr-ProhibitTimer is incorporated in 3GPP TS 38.331.

As an embodiment, the first condition includes: within a first given time window, the difference between the maximum value and the minimum value of a first path loss measured by the first node in the application exceeds a first given threshold; measurements for the first type of signal in the present application are used to determine the first path loss.

As an embodiment, the first condition includes: in a first given time window, the difference between the maximum value and the minimum value of a second path loss measured by the first node in the application exceeds a second given threshold; measurements for the second type of signal in this application are used to determine the second path loss.

As an embodiment, the first condition includes: in a first given time window, the difference between the maximum value and the minimum value of a first path loss measured by the first node in the application exceeds a first given threshold, and the difference between the maximum value and the minimum value of a second path loss measured by the first node exceeds a second given threshold; measurements for the first type of signal and the second type of signal in the present application are used to determine the first path loss and the second path loss, respectively.

As an embodiment, the first condition includes: within a first given time window, the difference between the maximum value and the minimum value of a first path loss measured by the first node in the application exceeds a first given threshold; and the difference between the maximum value and the minimum value of the second path loss measured by the first node exceeds a second given threshold value in a second given time window. Measurements for the first type of signal and the second type of signal in the present application are used to determine the first path loss and the second path loss, respectively.

As an embodiment, the first condition includes: the difference between the maximum and minimum values of the first power exceeds a third given threshold within a first given time window.

As an embodiment, the first condition includes: the difference between the maximum value and the minimum value of the second power exceeds a fourth given threshold value within a first given time window;

as an embodiment, the first condition includes: within a first given time window, the difference between the maximum and minimum values of the first power exceeds a third given threshold, and the difference between the maximum and minimum values of the second power exceeds a fourth given threshold.

As an embodiment, the first condition includes: within a first given time window, the difference between the maximum and minimum values of said first power exceeds a third given threshold; the difference between the maximum and minimum values of the second power exceeds a fourth given threshold within a second given time window.

As an embodiment, the given power is the smallest power of the first power and the second power, the first condition includes: whether the given power is the first power or the second power is varied within a first given time window. As an embodiment, the first condition includes: within a first given time window, the smallest power of the first power and the second power is changed from the first power to the second power.

As an embodiment, the first condition includes: within a first given time window, the smallest power of the first power and the second power is changed from the second power to the first power.

As an embodiment, the given path loss is a smallest path loss of the first path loss and the second path loss, and the first condition includes: within a first given time window, whether the given path loss is the first path loss or the second path loss has changed.

As an embodiment, the first condition includes: and in a first given time window, the smallest path loss of the first path loss and the second path loss is changed from the first path loss to the second path loss.

As an embodiment, the first condition includes: and in a first given time window, the smallest path loss of the first path loss and the second path loss is changed from the second path loss to the first path loss.

As an embodiment, the first given time window is a continuous time period.

As an embodiment, said first given time window is not less than prohibitPHR-Timer and not more than periodicPHR-Timer.

As an embodiment, the first given time window is a length of time of the first timer.

As an embodiment, the second given time window is a continuous time period.

As an embodiment, said second given time window is not less than prohibitPHR-Timer and not more than periodicPHR-Timer.

As an embodiment, the second given time window is a length of time of the second timer.

As an embodiment, the first condition includes: the difference between the first power in this application and the second power in this application is greater than a second threshold, which is a non-negative real number.

As an embodiment, the first condition includes: the first power in this application minus the second power in this application is greater than a second threshold, which is a non-negative real number.

As an embodiment, the first condition includes: the absolute value of the difference between the first power in this application and the second power in this application is greater than a second threshold, which is a non-negative real number.

As one embodiment, the second threshold is a positive real number.

As an embodiment, the second threshold is configured by higher layer (higher layer) signaling.

As an embodiment, the second threshold is configured by RRC signaling.

As an embodiment, the second threshold is UE specific.

As one embodiment, the second threshold is quasi-static (semi-static) configured.

As an embodiment, the second threshold is predefined.

As an embodiment, the first node in the present application determines the second threshold by itself.

Example 11

Embodiment 11 illustrates a schematic diagram of a first signaling according to an embodiment of the present application; as shown in fig. 11. In embodiment 11, the first signaling is used to determine a time-frequency resource occupied by the first signal in this application.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is dynamic signaling.

As one embodiment, the first signaling is layer 1(L1) signaling.

As an embodiment, the first signaling is layer 1(L1) control signaling.

As one embodiment, the first signaling includes DCI.

As one embodiment, the first signaling includes one or more fields (fields) in the DCI.

As an embodiment, the first signaling indicates a time-frequency resource occupied by the first signal.

As an embodiment, the first signaling explicitly indicates a time-frequency resource occupied by the first signal.

As an embodiment, the first signaling implicitly indicates a time-frequency resource occupied by the first signal.

As one embodiment, the first signaling includes scheduling information of the first signal.

As an embodiment, the scheduling information of the first signal includes one or more of occupied time domain resources, occupied frequency domain resources, a scheduled MCS (Modulation and Coding Scheme), DMRS configuration information, HARQ (Hybrid Automatic Repeat reQuest) process number (process number), RV (Redundancy Version), and NDI (New Data Indicator).

As an embodiment, the first signaling is transmitted through a Uu interface.

As an embodiment, the first signaling is transmitted through a Pc5 interface.

As an embodiment, the first signaling is transmitted through a link between a base station apparatus and a user equipment.

As an embodiment, the first signaling is transmitted through DL.

As one embodiment, the first signaling is transmitted on a PDCCH.

Example 12

Embodiment 12 illustrates a schematic diagram in which the first information includes the first difference value according to an embodiment of the present application; as shown in fig. 12. In embodiment 12, the first information includes the first difference, and the first power and the second power in this application are used to determine the first difference.

As an example, the unit of the first difference is dB (decibel).

As one embodiment, the first difference is a PHR.

As an embodiment, the first difference value is a difference of the second power and the first power.

For one embodiment, the first difference is equal to the second power minus the first power.

For one embodiment, the first difference is equal to the first power minus the second power.

As an embodiment, the first difference value is an absolute value of a difference between the second power and the first power.

Example 13

Embodiment 13 illustrates a schematic diagram of a first condition according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, the first condition includes that a difference between the second power in the present application and the first power in the present application is greater than the first threshold in the present application.

As an embodiment, the first condition includes: the second power minus the first power is greater than the first threshold.

As one embodiment, the unit of the first threshold is dBm.

As one embodiment, the first threshold is a non-negative real number.

As one embodiment, the first threshold is a positive real number.

As one embodiment, the first threshold is equal to 0.

As one embodiment, the first threshold is greater than 0.

As an embodiment, the first threshold is configured by higher layer (higher layer) signaling.

As an embodiment, the first threshold is configured by RRC signaling.

As an embodiment, the first threshold is predefined.

As an embodiment, the first threshold is UE specific.

As one embodiment, the first threshold is quasi-static (semi-static) configured.

As an embodiment, the first node in the present application determines the first threshold by itself.

As an embodiment, the method in the first node used for wireless communication in the present application comprises:

receiving downlink information;

wherein the Downlink information indicates the first threshold, the Downlink information is carried by an RRC signaling, and the Downlink information is transmitted on a PDSCH (Physical Downlink Shared CHannel).

Example 14

Embodiment 14 illustrates a schematic diagram in which first information includes first sub information according to an embodiment of the present application; as shown in fig. 14. In embodiment 14, the first information includes first sub information indicating that a difference between the second power in the present application and the first power in the present application is greater than the first threshold in the present application.

As an embodiment, the first sub information includes one information bit.

As an embodiment, the first sub information includes a bit sequence.

Example 15

Embodiment 15 illustrates a schematic diagram in which measurements for signals of the second type are used to determine K path losses according to an embodiment of the present application; as shown in fig. 15. In fig. 15, the K indices of the path loss are # 0., # K-1, respectively.

As an embodiment, the second type of signal comprises K second type of sub-signals; the measurements for the K sub-signals of the second type are used to determine K path losses, respectively.

As a sub-embodiment of the above embodiment, the sender of the K sub-signals of the second type is the first node in this application.

As a sub-embodiment of the foregoing embodiment, all the senders of the K second-type sub-signals are the first nodes in this application, and the K second-type sub-signals respectively correspond to different target receivers.

As a sub-embodiment of the foregoing embodiment, the senders of any two sub-signals of the K second types of sub-signals are different.

As a sub-embodiment of the foregoing embodiment, a sender of any one of the K second-type sub-signals is a piece of user equipment, and identifiers of senders of any two of the K second-type sub-signals are different.

As a sub-embodiment of the foregoing embodiment, at least two of the K second-type sub-signals have different senders.

As a sub-embodiment of the foregoing embodiment, a sender of any one of the K second-type sub-signals is a user equipment, and at least two senders of the K second-type sub-signals have different identifiers.

As a sub-embodiment of the above embodiment, any two sub-signals of the K second class cannot be assumed to be QCL (Quasi Co-Located).

As a sub-embodiment of the above embodiment, at least two sub-signals of the K second class of sub-signals cannot be assumed to be QCL.

As a sub-embodiment of the above embodiment, at least two of the K second class sub-signals are QCL.

As a sub-embodiment of the above-mentioned embodiment, the K second-class sub-signals are K wireless signals, respectively.

As a sub-embodiment of the above embodiment, the K second class sub-signals are K baseband signals, respectively.

As a sub-embodiment of the above-mentioned embodiments, any sub-signal of the second class of the K sub-signals comprises a reference signal.

As a sub-embodiment of the foregoing embodiment, any one of the K second-class sub-signals includes a CSI-RS.

As a sub-embodiment of the above-mentioned embodiments, any one of the K second-type sub-signals includes a SL CSI-RS.

As a sub-embodiment of the above-mentioned embodiment, any sub-signal of the second class of the K sub-signals includes an SS.

As a sub-embodiment of the above-mentioned embodiments, any one of the K sub-signals of the second type includes a SL SS.

As a sub-embodiment of the above-mentioned embodiments, any sub-signal of the second class of K sub-signals includes SL SSB.

As a sub-embodiment of the above embodiment, the K sub-signals of the second type are respectively transmitted through a Pc5 interface.

As a sub-embodiment of the above embodiment, the K sub-signals of the second type are transmitted via SL, respectively.

As a sub-embodiment of the above embodiment, there is one sub-signal of the second class among the K sub-signals of the second class that appears multiple times in the time domain.

As a sub-embodiment of the above embodiment, there is one sub-signal of the second class among the K sub-signals of the second class that appears only once in the time domain.

As a sub-embodiment of the foregoing embodiment, any one of the K path losses is equal to the transmission power of the corresponding second-type sub-signal minus the RSRP of the corresponding second-type sub-signal.

As a sub-embodiment of the foregoing embodiment, the K second-type sub-signals respectively correspond to different target receivers, and any one of the K path loss is equal to a difference between a transmission power of a corresponding second-type sub-signal and an RSRP of the corresponding second-type sub-signal measured by the target receiver of the corresponding second-type sub-signal.

As an embodiment, the target receiver of the second type of signal comprises K nodes, and the measurements of the K nodes for the second type of signal are used for determining the K path losses, respectively.

As a sub-embodiment of the foregoing embodiment, any one of the K path losses is equal to the transmission power of the second-type signal minus RSRP of the second-type signal measured by the corresponding node.

As a sub-embodiment of the above embodiment, the K nodes are user equipments respectively; and the identifications of any two nodes in the K nodes are different.

As an embodiment, the first node in this application transmits the second type signal; the third information in this application is used to determine the K path losses.

Example 16

Embodiment 16 illustrates a diagram where K path losses are used to determine the second power according to an embodiment of the present application; as shown in fig. 16. In example 16, the K path losses are used to determine K second-type powers, respectively, which are used to determine the second power. In fig. 16, the K path losses and the K indices of the second type power are # 0., # K-1, respectively.

As one embodiment, the sentence wherein the measurement for the second type of signal is used to determine the second power comprises: the K path losses are used to determine K second type powers, respectively, which are used to determine the second power.

As an embodiment, the units of the K second type powers are dBm, respectively.

As an embodiment, the second power is a largest one of the K second types of power.

As an embodiment, the second power is a smallest one of the K second types of power.

As an embodiment, the second power is an average of the K second type powers.

As an embodiment, the second power and each of the K second type powers are linearly related.

As an embodiment, K reference powers are used for determining the K second class powers, respectively; the K reference powers are linearly related to the K path losses respectively; a linear coefficient between any one of the K reference powers and a corresponding path loss is a positive real number not greater than 1.

As a sub-embodiment of the foregoing embodiment, the method for determining the second power according to the second reference power in embodiment 8 of the present application may be used to determine the corresponding second type power according to one reference power of the K reference powers.

As a sub-embodiment of the foregoing embodiment, the method for determining the second power according to the fourth reference power in embodiment 8 of the present application may be used to determine the corresponding second type power according to one reference power of the K reference powers.

As a sub-embodiment of the above embodiment, the method for determining the second reference power in embodiment 8 of the present application may be used for determining one reference power of the K reference powers.

As a sub-embodiment of the above embodiment, the method for calculating the fourth reference power in embodiment 9 of the present application may be used for determining the calculation of one of the K reference powers.

As an embodiment, the first condition in the present application includes: the largest second-type power among the K second-type powers is which second-type power among the K second-type powers is changed.

As an embodiment, the first condition in the present application includes: the smallest second-type power of the K second-type powers is which second-type power of the K second-type powers is changed.

Example 17

Embodiment 17 illustrates a diagram where K path losses are used to determine the second power according to an embodiment of the present application; as shown in fig. 17. In embodiment 17, the K path losses are used to determine a target path loss, which is used to determine the second power. In fig. 17, the K path loss indices are # 0., # K-1, respectively.

As one embodiment, the sentence wherein the measurement for the second type of signal is used to determine the second power comprises: a target path loss is used to determine the second power, and the K path losses in this application are used to determine the target path loss.

As an embodiment, the target path loss is a largest one of the K path losses.

As an embodiment, the target path loss is the smallest one of the K path losses.

As one embodiment, the target path loss is an average of the K path losses.

As an embodiment, the target path loss is an average of linear values of the K path losses.

As an embodiment, the target path loss and each of the K path losses are linearly related.

As an embodiment, the linear value of the target path loss and the linear value of each of the K path losses are linearly related.

As one embodiment, the target path loss is a path loss that varies most among the K path losses.

As an embodiment, the target path loss is a path loss with the smallest variation among the K path losses.

As an example, in embodiment 8 of the present application, the second reference power and the target path loss are linearly related, and a linear coefficient between the second reference power and the target path loss is the second coefficient in embodiment 8.

As an example, the second reference power in embodiment 8 of the present application is linearly related to the target path loss, the fifth component in embodiment 8, and the sixth component in embodiment 8. The linear coefficient between the second reference power and the target path loss is the second coefficient in embodiment 8; linear coefficients between the second reference power and the fifth and sixth components are 1, respectively.

As an embodiment, the first condition in the present application includes: within a first given time window, the difference between the maximum value and the minimum value of the target path loss measured by the first node in the present application exceeds a third given threshold.

As an embodiment, the first condition in the present application includes: in a first given time window, the difference between the maximum value and the minimum value of the first path loss measured by the first node in the present application exceeds a first given threshold, and the difference between the maximum value and the minimum value of the target path loss measured by the first node exceeds a third given threshold; measurements for the first type of signal in the present application are used to determine the first path loss.

As an embodiment, the first condition in the present application includes: within a first given time window, the difference between the maximum value and the minimum value of the first path loss measured by the first node in the present application exceeds a first given threshold; and in a second given time window, the difference between the maximum value and the minimum value of the target path loss measured by the first node exceeds a third given threshold value. Measurements for the first type of signal in the present application are used to determine the first path loss.

As an example, in embodiment 9 of the present application, the fourth reference power and the target path loss are linearly related, and a linear coefficient between the fourth reference power and the target path loss is the third coefficient in embodiment 9.

As an example, the fourth reference power in embodiment 9 of the present application is linearly related to the target path loss, the seventh component in embodiment 9, and the eighth component in embodiment 9, respectively. A linear coefficient between the fourth reference power and the target path loss is the third coefficient in embodiment 9; linear coefficients between the fourth reference power and the seventh and eighth components are 1, respectively.

As an embodiment, the first condition in the present application includes: the largest path loss of the K path losses is which path loss of the K path losses has changed.

As an embodiment, the first condition in the present application includes: the smallest one of the K path losses is which one of the K path losses has changed.

As an embodiment, the first condition in the present application includes: and in the first given time window, the difference between the maximum value and the minimum value of the target path loss exceeds a fifth given threshold value.

Example 18

Embodiment 18 illustrates a schematic diagram of a second signal according to an embodiment of the present application; as shown in fig. 18. In embodiment 18, the transmission power of the second signal is the minimum value of the first power in the present application and the second power in the present application.

As an embodiment, the ending time of the time domain resource occupied by the second signal is earlier than the starting time of the time domain resource occupied by the first signal.

As an embodiment, the ending time of the time domain resource occupied by the second signal is not later than the starting time of the time domain resource occupied by the first signal in this application.

As an embodiment, a starting time of the time domain resource occupied by the second signal is related to a time when the first condition is satisfied in the present application.

As an embodiment, the starting time of the time domain resource occupied by the second signal is not earlier than the time when the first condition is satisfied in the present application.

As an embodiment, the ending time of the time domain resource occupied by the scheduling signaling of the second signal is earlier than the starting time of the time domain resource occupied by the first signal.

As an embodiment, the ending time of the time domain resource occupied by the scheduling signaling of the second signal is not later than the starting time of the time domain resource occupied by the first signaling in the present application.

As an embodiment, a starting time of a time domain resource occupied by the scheduling signaling of the second signal is related to a time when the first condition is satisfied in the present application.

As an embodiment, the starting time of the time domain resource occupied by the scheduling signaling of the second signal is not earlier than the time when the first condition is satisfied in the present application.

As one embodiment, the second signal is a wireless signal.

As one embodiment, the second signal is a baseband signal.

As an embodiment, the unit of the transmit power of the second signal is dBm.

As an embodiment, the second signal carries a Transport Block (TB).

As an embodiment, the second signal carries SCI (Sidelink Control Information).

As an embodiment, the second signal carries information in one or more fields (fields) in the SCI.

For one embodiment, the second signal is transmitted through a Pc5 interface.

As an embodiment, the second signal is transmitted over a user equipment and a link between the user equipment.

As an embodiment, the second signal is transmitted through a sidelink.

As one embodiment, the second signal is transmitted over an uplink.

As an embodiment, the second signal is transmitted on a psch.

As an embodiment, the second signal is transmitted on the PSCCH.

As an example, the second signal is transmitted on the psch and PSCCH.

As an embodiment, the target receiver of the second signal comprises a sender of the second type of signal in the present application.

As an embodiment, the second type of signal comprises K second type of sub-signals, and the intended recipient of the second signal comprises a sender of one of the K second type of sub-signals.

As an embodiment, the second type of signal includes K second type of sub-signals, and the measurements for the K second type of sub-signals are respectively used for determining the K path losses in the present application; the target receiver of the second signal includes a sender of a given second-class sub-signal, which is a second-class sub-signal corresponding to the target path loss in embodiment 17 among the K second-class sub-signals.

Example 19

Embodiment 19 illustrates a schematic diagram of second information according to an embodiment of the present application; as shown in fig. 19. In embodiment 19, the second information is used to determine the transmission power of the third signal in the present application.

As an embodiment, the second information is carried by higher layer (higher layer) signaling.

As an embodiment, the second information is carried by RRC signaling.

As an embodiment, the second information is carried by MAC CE signaling.

As an embodiment, the second information is carried by physical layer signaling.

As an embodiment, the second Information includes all or part of Information in an IE (Information Element).

As an embodiment, the second information includes part or all of information in a PUSCH-PowerControl IE.

As an embodiment, the second information includes part or all of information in P0-PUSCH-AlphaSet.

As an embodiment, the specific definition of the PUSCH-PowerControl IE is referred to in 3GPP TS 38.331.

As an embodiment, the specific definition of P0-PUSCH-AlphaSet is referred to 3GPP TS 38.331.

As an example, the second information is transmitted through a Pc5 interface.

As an embodiment, the second information is transmitted through a Uu interface.

As an embodiment, the second information is transmitted through a link between the base station apparatus and the user equipment.

As an embodiment, the second information is transmitted through a downlink.

As one embodiment, the second information is transmitted on a PDSCH.

As an embodiment, the second information is transmitted on a PDCCH.

As an embodiment, the unit of the transmission power of the third signal is dBm.

As an embodiment, the transmission power of the third signal is not equal to the transmission power of the second signal in this application.

As an embodiment, the transmission power of the third signal is greater than the transmission power of the second signal in this application.

As an embodiment, the transmission power of the third signal is not equal to the minimum value of the first power in this application and the second power in this application.

As an embodiment, the transmission power of the third signal is greater than the minimum value of the first power and the second power.

As an embodiment, the transmission power of the third signal is not equal to the first power and the second power.

As an embodiment, the transmission power of the third signal is equal to the first power.

As one embodiment, the second information indicates that a transmission power of the third signal is equal to the first power.

As an embodiment, the second information indicates that the transmission power of the third signal is equal to the second power.

As an embodiment, the second information indicates that the transmission power of the third signal is independent of the measurement for the first type of signal in the present application.

As an embodiment, the second information indicates that the transmit power of the third signal is independent of measurements for the second type of signal in the present application.

For one embodiment, the third signal is transmitted on a secondary link; the second information indicates that the transmit power of the third signal is based on measurements of a reference signal transmitted on a downlink.

For one embodiment, the third signal is transmitted on a secondary link; the second information indicates that a transmit power of the third signal is independent of a reference signal transmitted on a sidelink.

For one embodiment, the third signal is transmitted on a secondary link; the second information indicates that the transmit power of the third signal is based on measurements of reference signals transmitted on a sidelink.

For one embodiment, the third signal is transmitted on a secondary link; the second information indicates that a transmit power of the third signal is independent of a reference signal transmitted on a downlink.

As an embodiment, the second information is used to update a value of a power control parameter for an uplink.

As a sub-embodiment of the above-mentioned embodiment, the power control parameter for uplink includes the first component in embodiment 7.

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for uplink includes P_{0_PUSCH,b,f,c}(j)。

As the above-mentioned embodimentOne sub-embodiment of the method, the power control parameter for uplink comprises P for uplink power control₀(j)。

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for uplink includes P for PUSCH power control₀(j)。

As a sub-embodiment of the above-mentioned embodiment, the power control parameter for uplink includes the first coefficient in embodiment 7.

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for uplink includes α_b,f,c(j)。

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for uplink includes α (j) for uplink power control.

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for uplink includes α (j) for PUSCH power control.

As one embodiment, the second information is used to update a value of a power control parameter for a secondary link.

As a sub-embodiment of the above embodiment, the power control parameter for the secondary link comprises the fifth component of embodiment 8.

As a sub-embodiment of the above-mentioned embodiment, the power control parameter for the secondary link includes the seventh component in embodiment 9.

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for the secondary link comprises P_{0_PSSCH}。

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for the secondary link comprises P for secondary link power control₀。

As a sub-embodiment of the above-mentioned embodiment, the power control parameter for the secondary link includes the second coefficient in embodiment 8.

As a sub-embodiment of the above-mentioned embodiment, the power control parameter for the secondary link includes the third coefficient in embodiment 9.

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for the secondary link comprises α_PSSCH。

As a sub-embodiment of the above-mentioned embodiments, the power control parameter for the secondary link comprises α for secondary link power control.

As an embodiment, the second information is used to update a value of a power control parameter for uplink, the updated power control parameter for uplink is used to determine a third power, and the transmission power of the third signal is a minimum value of the third power and the second power.

As a sub-embodiment of the above-mentioned embodiment, the third power is obtained by using the first coefficient updated by the second information according to the method for determining the first power in embodiment 7.

As a sub-embodiment of the above-mentioned embodiment, the third power is obtained by using the first component updated by the second information according to the method for determining the first power in embodiment 7.

As a sub-embodiment of the above-mentioned embodiment, the third power is obtained by using the first coefficient and the first component updated by the second information according to the method for determining the first power in embodiment 7.

As one embodiment, the second information is used to update a value of a power control parameter for a secondary link; the updated power control parameter for the secondary link is used to determine a fourth power, and the transmission power of the third signal is the minimum of the first power and the fourth power.

As a sub-embodiment of the foregoing embodiment, the fourth power is obtained by using the second coefficient updated by the second information according to the method for determining the second power in embodiment 8.

As a sub-embodiment of the foregoing embodiment, the fourth power is obtained by using the fifth component updated by the second information according to the method for determining the second power in embodiment 8.

As a sub-embodiment of the foregoing embodiment, the fourth power is obtained by using the second coefficient and the fifth component updated by the second information according to the method for determining the second power in embodiment 8.

As a sub-embodiment of the foregoing embodiment, the fourth power is obtained by using the third coefficient updated by the second information according to the method for determining the second power in embodiment 9.

As a sub-embodiment of the foregoing embodiment, the fourth power is obtained by using the seventh component updated by the second information according to the method for determining the second power in embodiment 9.

As a sub-embodiment of the foregoing embodiment, the fourth power is obtained by using the third coefficient and the seventh component updated by the second information according to the method for determining the second power in embodiment 9.

Example 20

Embodiment 20 illustrates a schematic diagram of a first node transmitting a third signal in a second time window according to an embodiment of the present application; as shown in fig. 20. In embodiment 20, the second time window is later than the time domain resource occupied by the first signal in this application.

As one embodiment, the third signal is a wireless signal.

As an embodiment, the third signal is a baseband signal.

As an embodiment, the third signal carries one TB.

As one embodiment, the third signal carries a SCI.

As an embodiment, the third signal carries information in one or more fields (fields) in the SCI.

As an embodiment, the third signal carries UCI (Uplink Control Information).

As an example, the third signal is transmitted through a Pc5 interface.

As an embodiment, the third signal is transmitted over a user equipment and a link between the user equipments.

As one embodiment, the third signal is transmitted over a sidelink.

As an embodiment, the third signal is transmitted over a Uu interface.

As an embodiment, the third signal is transmitted on a psch.

As an embodiment, the third signal is transmitted on the PSCCH.

As an example, the third signal is transmitted on the psch and PSCCH.

As one embodiment, the third signal is transmitted on a PUSCH.

As one embodiment, the third signal is transmitted on a PUCCH.

As an embodiment, the second time window is a continuous time period.

As an embodiment, a start time of the second time window is later than an end time of the time domain resource occupied by the first signal.

As an embodiment, in the present application, a start time of a time domain resource occupied by the second information is later than an end time of a time domain resource occupied by the first signal.

As an embodiment, the target recipient of the third signal is the target recipient of the second signal in this application.

As one embodiment, the target recipient of the third signal comprises a target recipient of the second signal.

As one embodiment, the target recipient of the third signal does not include the target recipient of the second signal.

Example 21

Embodiment 21 is a block diagram illustrating a configuration of a processing apparatus used in a first node device according to an embodiment of the present application; as shown in fig. 21. In fig. 21, a processing apparatus 2100 in a first node device includes a first processor 2101 and a first transmitter 2102.

In embodiment 21, the first processor 2101 receives signals of a first type or transmits signals of a first type and transmits signals of a second type or receives signals of a second type; the first transmitter 2102 transmits a first signal.

In embodiment 21, measurements for the first type of signal are used to determine a first power, and measurements for the second type of signal are used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

For one embodiment, the first processor 2101 receives a first signaling; wherein the first signaling is used for determining the time-frequency resource occupied by the first signal.

As an embodiment, the first information comprises a first difference, the first power and the second power are used to determine the first difference.

For one embodiment, the first processor 2101 receives the third information; wherein measurements for the second type of signal are used to determine the third information, which is used to determine the second power; and the first node equipment transmits the second type of signals.

For one embodiment, the first processor 2101 receives the fourth information; wherein measurements for the first type of signal are used to determine the fourth information, which is used to determine the first power; the first node device transmits the first type of signal.

As an embodiment, measurements for the second type of signal are used to determine K path losses, K being a positive integer greater than 1; the K path losses are used to determine the second power.

As an example, the first transmitter 2102 transmits a second signal; wherein the transmission power of the second signal is a minimum value of the first power and the second power.

For one embodiment, the first processor 2101 receives the second signaling; wherein the second signaling is used for determining the time-frequency resource occupied by the second signal.

For one embodiment, the first processor 2101 receives the second information; the first transmitter 2102 transmits a third signal in a second time window; wherein the second information is used to determine a transmit power of the third signal; the second time window is later than the time domain resource occupied by the first signal.

For one embodiment, the first processor 2101 receives the third signaling; wherein the third signaling is used to determine a time-frequency resource occupied by the third signal.

As an embodiment, the first node device is a user equipment.

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

For one embodiment, the first processor 2101 may include at least one of the following { antenna 452, receiver/transmitter 454, receive processor 456, transmit processor 468, multi-antenna receive processor 458, multi-antenna transmit processor 457, controller/processor 459, memory 460, data source 467} of embodiment 4.

For one embodiment, the first transmitter 2102 includes at least one of the { antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller/processor 459, memory 460, data source 467} of embodiment 4.

Example 22

Embodiment 22 illustrates a block diagram of a processing apparatus for use in a second node device according to an embodiment of the present application; as shown in fig. 22. In fig. 22, the processing means 2200 in the second node device comprises a second processor 2201 and a second receiver 2202.

In embodiment 22, the second processor 2201 transmits signals of the first type or receives signals of the first type; the second receiver 2202 receives the first signal.

In embodiment 22, measurements for signals of the first type are used to determine a first power, and measurements for signals of a second type are used to determine a second power, the second type signals being transmitted by a node device different from the sender of the first type signals; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

For one embodiment, the second processor 2201 sends the first signaling; wherein the first signaling is used for determining the time-frequency resource occupied by the first signal.

For one embodiment, the second processor 2201 sends the fourth information; wherein measurements for the first type of signal are used to determine the fourth information, which is used to determine the first power; the second node device receives the first type of signal.

For one embodiment, the second processor 2201 sends the second signaling; the second signaling is used to determine the time-frequency resource occupied by the second signal in the present application.

For one embodiment, the second processor 2201 sends the second information; wherein the second information is used to determine a transmit power of a third signal; the third signal is transmitted in a second time window, which is later than the time domain resources occupied by the first signal.

For one embodiment, the second processor 2201 sends a third signaling; wherein the third signaling is used to determine a time-frequency resource occupied by the third signal.

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

As an embodiment, the second node device is a user equipment.

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

For one embodiment, the second processor 2201 includes at least one of { antenna 420, receiver/transmitter 418, receive processor 470, transmit processor 416, multi-antenna receive processor 472, multi-antenna transmit processor 471, controller/processor 475, memory 476} in embodiment 4.

For one embodiment, the second receiver 2202 comprises at least one of { antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller/processor 475, memory 476} in embodiment 4.

Example 23

Embodiment 23 illustrates a block diagram of a processing apparatus for use in a third node device according to an embodiment of the present application; as shown in fig. 23. In fig. 23, a processing means 2300 in the third node device includes a third processor 2301.

In embodiment 23, the third processor 2301 receives the target second type sub-signal or transmits the target second type sub-signal.

In embodiment 23, measurements for a first type of signal transmitted by a node device other than the sender of the target second type of sub-signal are used to determine a first power; the second type of signal comprises the target second type of sub-signal, measurements for the second type of signal being used to determine a second power; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

For one embodiment, the third processor 2301 transmits the target third sub information; wherein measurements for the target second type of sub-signal are used to determine the target third sub-information; third information comprising the target third sub-information, the third information being used to determine the second power; the third node device receives the target second-type sub-signal.

For one embodiment, the third processor 2301 receives a second signal; wherein the transmission power of the second signal is a minimum value of the first power and the second power.

For one embodiment, the third processor 2301 receives a third signal in a second time window; wherein the second time window is later than a time domain resource used to transmit the first information.

As an embodiment, the third node device is a user device.

As an embodiment, the third node device is a relay node.

For one embodiment, the third processor 2301 includes at least one of { antenna 420, transmitter/receiver 418, transmit processor 416, receive processor 470, multi-antenna transmit processor 471, multi-antenna receive processor 472, controller/processor 475, memory 476} in embodiment 4.

Example 24

Embodiment 24 illustrates a flow chart of wireless transmission according to an embodiment of the application, as shown in fig. 24. In fig. 24, the second node U1, the first node U2, and the third node U3 are each communication nodes that communicate over the air interface between each other.

The second node U1, in step S2411, transmits the first type signal.

A first node U2 receiving the first type signal in step S2421; the target second-type sub-signal is received in step S2422.

The third node U3, in step S2431, sends the target second type sub-signal.

Example 25

Embodiment 25 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in fig. 25. In fig. 25, the second node U1, the first node U2, and the third node U3 are each communication nodes that communicate over the air interface between themselves. In fig. 25, the step in block F251 is optional.

The second node U1, in step S2511, receives the first type signal.

A first node U2 that transmits a first type signal in step S2521; transmitting the target second-type sub-signal in step S2522; the target third sub information is received in step S25201.

The third node U3, receiving the target second type sub-signal in step S2531; the target third sub information is transmitted in step S25301.

In embodiment 25, the measurement for the target second type of sub-signal is used by the third node U3 to determine the target third sub-information; the third information in this application comprises the target third sub-information, which is used by the first node U2 to determine the second power in this application.

As an embodiment, the target third sub-signal comprises an RSRP of the target second class of sub-signal.

Example 26

Embodiment 26 illustrates a schematic diagram of third information according to an embodiment of the present application; as shown in fig. 26. In embodiment 26, measurements for the second type of signal in the present application are used to determine the third information, which is used to determine the second power in the present application.

As an embodiment, the third information is carried by higher layer (higher layer) signaling.

As an embodiment, the third information is carried by MAC CE signaling.

As an embodiment, the third information is carried by physical layer signaling.

As an embodiment, the third information is transmitted through a Pc5 interface.

As an embodiment, the third information is transmitted through a sidelink.

As an embodiment, the third information is transmitted on the psch.

As an embodiment, the third information is transmitted on the PSCCH.

As an embodiment, the third information comprises RSRP of the second type of signal.

As an embodiment, the target recipients of the second type of signal comprise K nodes, K being a positive integer greater than 1; the third information includes K pieces of third sub information, where the K pieces of third sub information respectively include RSRPs of the second-class signals measured by the K nodes.

As an embodiment, the second type of signal includes K second type of sub-signals, K being a positive integer greater than 1, the K second type of sub-signals being respectively for different target recipients; the third information includes K pieces of third sub information, and the K pieces of third sub information respectively include RSRPs of the K pieces of second-class sub signals.

As an embodiment, the K pieces of third sub information are respectively used for determining the K path losses in the present application.

As an embodiment, the third information includes K pieces of third sub information, K being a positive integer greater than 1; and the K pieces of third sub information are transmitted on K physical layer channels respectively.

As a sub-embodiment of the foregoing embodiment, the K pieces of third sub-information respectively include K RSRPs.

As a sub-embodiment of the above embodiment, the K physical layer channels comprise pschs.

As a sub-embodiment of the above embodiment, the K physical layer channels comprise PSCCHs.

As an embodiment, the third information is used to determine the second path loss.

Example 27

Embodiment 27 illustrates a schematic diagram of fourth information according to an embodiment of the present application; as shown in fig. 27. In embodiment 27, measurements on the signals of the first type in the present application are used for determining the fourth information, which is used for determining the first power in the present application.

As an embodiment, the fourth information is carried by higher layer (higher layer) signaling.

As an embodiment, the fourth information is carried by MAC CE signaling.

As an embodiment, the fourth information is carried by physical layer signaling.

As an embodiment, the fourth information is transmitted through a Pc5 interface.

As an embodiment, the fourth information is transmitted through a sidelink.

As an embodiment, the fourth information is transmitted on the psch.

As an embodiment, the fourth information is transmitted on the PSCCH.

As an embodiment, the fourth information includes RSRP of the first type of signal.

As an embodiment, the fourth information is used to determine the first path loss.

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. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, wireless Communication equipment such as low-cost panel computer. The base station or the system device 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, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point), 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 device for wireless communication, comprising:

a first transmitter that transmits a first signal;

wherein the first type of signal comprises a reference signal and the second type of signal comprises a reference signal; the first type of signals are transmitted through a downlink, and the second type of signals are transmitted through a sidelink; measurements for the first type of signal are used to determine a first path loss, which is used to determine a first power; the measurements for the second type of signal are used to determine a second path loss, which is used to determine a second power; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

2. The first node device of claim 1, wherein the first processor receives first signaling; wherein the first signaling is used for determining the time-frequency resource occupied by the first signal.

3. The first node device of claim 1 or 2, wherein the first information comprises a first difference value, and wherein the first power and the second power are used to determine the first difference value.

4. The first node apparatus of claim 1 or 2, wherein the first condition comprises a difference between the second power and the first power being greater than a first threshold.

5. The first node device of claim 1 or 2, wherein the first processor receives third information; wherein measurements for the second type of signal are used to determine the third information, which is used to determine the second power; and the first node equipment transmits the second type of signals.

6. The first node device of claim 1 or 2, wherein the first processor receives fourth information; wherein measurements for the first type of signal are used to determine the fourth information, which is used to determine the first power; the first node device transmits the first type of signal.

7. The first node device of claim 1 or 2, wherein measurements for the second type of signal are used to determine K path losses, K being a positive integer greater than 1; the K path losses are used to determine the second power.

8. The first node device of claim 1 or 2, wherein the first transmitter transmits a second signal; wherein the transmission power of the second signal is a minimum value of the first power and the second power.

9. The first node device of claim 1 or 2, wherein the first processor receives second information; the first transmitter transmits a third signal in a second time window; wherein the second information is used to determine a transmit power of the third signal; the second time window is later than the time domain resource occupied by the first signal.

10. A second node device for wireless communication, comprising:

a second receiver receiving the first signal;

wherein the first type of signal comprises a reference signal, wherein a measurement for the first type of signal is used to determine a first path loss, and wherein the first path loss is used to determine a first power; measurements for a second type of signal, the second type of signal comprising a reference signal, are used to determine a second power; said second type of signal being transmitted by a node device different from the sender of said first type of signal; the first type of signals are transmitted through a downlink, and the second type of signals are transmitted through a sidelink; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

11. The second node apparatus of claim 10,

the second processor sends a first signaling; wherein the first signaling is used for determining the time-frequency resource occupied by the first signal.

12. The second node apparatus of claim 10 or 11,

the first information includes a first difference value, the first power and the second power are used to determine the first difference value.

13. The second node apparatus of claim 10 or 11,

the first condition includes a difference between the second power and the first power being greater than a first threshold.

14. The second node apparatus of claim 10 or 11,

the second processor sends fourth information; wherein measurements for the first type of signal are used to determine the fourth information, which is used to determine the first power; the second node device receives the first type of signal.

15. Second node device according to claim 10 or 11, wherein measurements for the second type of signal are used for determining K path losses, K being a positive integer larger than 1; the K path losses are used to determine the second power.

16. The second node apparatus of claim 10 or 11, wherein the second processor transmits second information; wherein the second information is used to determine a transmit power of a third signal; the third signal is transmitted in a second time window, which is later than the time domain resources occupied by the first signal.

17. A third node device for wireless communication, comprising:

wherein measurements for a first type of signal comprising a reference signal are used to determine a first path loss, which is used to determine a first power; said first type of signal being transmitted by a node device other than the sender of said target second type of sub-signal; a second type of signal comprises the target second type of sub-signal, the second type of signal comprises a reference signal, a measurement for the second type of signal is used to determine a second path loss, the second path loss is used to determine a second power; the first type of signals are transmitted through a downlink, and the second type of signals are transmitted through a sidelink; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

18. The third node device of claim 17,

19. The third node device of claim 17 or 18, wherein the first condition comprises a difference between the second power and the first power being greater than a first threshold.

20. The third node device of claim 17 or 18, wherein the third processor sends target third sub-information; wherein measurements for the target second type of sub-signal are used to determine the target third sub-information; third information comprising the target third sub-information, the third information being used to determine the second power; the third node device receives the target second-type sub-signal.

21. A third node device according to claim 17 or 18, wherein measurements for the second type of signal are used to determine K path losses, K being a positive integer greater than 1; the K path losses are used to determine the second power.

22. The third node device of claim 17 or 18, wherein the third processor receives a second signal; wherein the transmission power of the second signal is a minimum value of the first power and the second power.

23. The third node device of claim 17 or 18, wherein the third processor receives a third signal in a second time window; wherein the second time window is later than a time domain resource used to transmit the first information.

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

receiving a first type of signal or transmitting a first type of signal;

sending a second type of signal or receiving a second type of signal;

transmitting a first signal;

25. A method in a first node according to claim 24, comprising:

receiving a first signaling;

26. Method in a first node according to claim 24 or 25, characterised in that the first information comprises a first difference value, the first power and the second power being used for determining the first difference value.

27. The method in the first node according to claim 24 or 25, characterised in that the first condition comprises that the difference between the second power and the first power is larger than a first threshold.

28. A method in a first node according to claim 24 or 25, comprising:

receiving third information;

29. A method in a first node according to claim 24 or 25, comprising:

receiving fourth information;

30. A method in a first node according to claim 24 or 25, characterised in that measurements for the second type of signal are used for determining K path losses, K being a positive integer larger than 1; the K path losses are used to determine the second power.

31. A method in a first node according to claim 24 or 25, comprising:

transmitting a second signal;

32. A method in a first node according to claim 24 or 25, comprising:

receiving second information;

transmitting a third signal in a second time window;

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

transmitting a first type of signal or receiving a first type of signal;

receiving a first signal;

wherein the first type of signal comprises a reference signal, wherein a measurement for the first type of signal is used to determine a first path loss, and wherein the first path loss is used to determine a first power; measurements for a second type of signal, the second type of signal comprising a reference signal, are used to determine a second power; said second type of signal being transmitted by a node different from the sender of said first type of signal; the first type of signals are transmitted through a downlink, and the second type of signals are transmitted through a sidelink; the first signal carries first information relating to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

34. A method in a second node according to claim 33, comprising:

sending a first signaling;

35. A method in a second node according to claim 33 or 34, characterised in that the first information comprises a first difference value, the first power and the second power being used for determining the first difference value.

36. A method in a second node according to claim 33 or 34, characterised in that the first condition comprises that the difference between the second power and the first power is larger than a first threshold.

37. A method in a second node according to claim 33 or 34, comprising:

sending fourth information;

38. A method in a second node according to claim 33 or 34, characterised in that measurements for the second type of signal are used for determining K path losses, K being a positive integer larger than 1; the K path losses are used to determine the second power.

39. A method in a second node according to claim 33 or 34, comprising:

sending the second information;

40. A method in a third node used for wireless communication, comprising:

wherein measurements for a first type of signal comprising a reference signal are used to determine a first path loss, which is used to determine a first power; said first type of signal being transmitted by a node different from the sender of said target second type of sub-signal; a second type of signal comprises the target second type of sub-signal, the second type of signal comprises a reference signal, a measurement for the second type of signal is used to determine a second path loss, the second path loss is used to determine a second power; the first type of signals are transmitted through a downlink, and the second type of signals are transmitted through a sidelink; the first information relates to a difference between the second power and the first power; the sending of the first information is triggered by a first condition.

41. The method in a third node according to claim 40,

42. A method in a third node according to claim 40 or 41, wherein the first condition comprises the difference between the second power and the first power being larger than a first threshold.

43. A method in a third node according to claim 40 or 41, comprising:

sending the target third sub information;

44. A method in a third node according to claim 40 or 41, characterised in that measurements for the second type of signal are used for determining K path losses, K being a positive integer larger than 1; the K path losses are used to determine the second power.

45. A method in a third node according to claim 40 or 41, comprising:

receiving a second signal;

46. A method in a third node according to claim 40 or 41, comprising:

receiving a third signal in a second time window;