Method and device in node used for wireless communication random access

Abstract

The invention discloses a method and a device in a node used for wireless communication random access. A first node receives a first information block and a first signaling, the first information block indicates a first path loss offset, and the first signaling initiates a random access process; sending the first signal; the random access process initiated by the first signaling comprises the first signal; the first signaling comprises a first domain set, the first domain set indicates a transmission parameter of the first signal, and the transmission parameter of the first signal comprises one of a random access preamble index, a PRACH mask index or a PRACH opportunity; the sending power value of the first signal depends on path loss obtained for a downlink signal; whether the transmit power value of the first signal depends on the first path loss offset depends on the transmission parameter of the first signal. According to the invention, the power control of the PRACH transmission facing the UL TRP is optimized, so that the flexibility is improved.

Description

Technical Field

[0001] The present application relates to a signal transmission method and device in a wireless communication system, and more particularly to a method and device for a random access procedure. Background Art

[0002] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-Term Evolution) system and NR (New Radio) system. It is achieved by configuring multiple antennas at communication nodes, such as base stations or UE (User Equipment) to obtain additional spatial degrees of freedom. Multiple antennas improve communication quality by beamforming to form beams pointing in a specific direction. When multiple antennas belong to multiple TRPs (Transmitter Receiver Points) / panels, additional diversity gain can be obtained by utilizing the spatial differences between different TRPs / panels. Among them, deploying heterogeneous networks so that UEs can receive downlink (DL) transmissions from a gNB but send uplink (UL) transmissions to the gNB or non-co-located TRP / panel is an important enhancement to improve uplink throughput. Furthermore, the TRP / panel receiving the UL can reduce or even shut down DL transmissions to reduce energy consumption.

[0003] In December 2023, the WI (Work Item) of NRMIMO Phase 5 was passed at the RAN (Radio Access Network) #102 plenary meeting. The RAN1 working group will at least enhance UL power control (PC) in the Rel-19 stage to support this UL / DL asymmetric deployment scenario; this includes configuring path loss offset for the UE to accurately calculate the path loss associated with the UE and the TRP / panel; and supporting two closed-loop PC adjustment states of SRS (Sounding Resource Signal) for gNB DLCSI (Channel State Information) acquisition and UL multi-TRP transmission. Summary of the invention

[0004] In NR, when the gNB needs the UE to send uplink data and the UE is in an uplink out-of-sync state, the gNB will trigger the UE to perform a random access procedure by sending a PDCCH (Physical Downlink Control CHannel) Order to re-establish synchronization with the UE; once the terminal starts the random access procedure, it needs to ensure that the access is as successful as possible.

[0005] In the UL / DL asymmetric scenario, the base station needs to maintain uplink synchronization between the UE and the gNB, as well as between the UE and the UL TRP that is remote from the gNB. The random access process triggered by the PDCCH Order may be for the gNB or the UL TRP that is remote from the gNB. The gNB can configure or indicate additional path loss offsets for PRACH (Physical Random Access CHannel) transmission for the UL TRP to improve the random access success rate of the terminal for the UL TRP. At this time, how the UE determines the uplink for which the random access process triggered by the PDCCH Order is targeted, and whether the transmit power value of the UE when transmitting the PRACH depends on the configured or indicated path loss offset are issues that need to be resolved.

[0006] In view of the above problems, the present application discloses a solution. It should be noted that, in the description of the above problems, the NR (New Radio) system is used as an example, and the present application is also applicable to scenarios such as the future 6G system, and achieves technical effects similar to the NR system; further, although the original intention of the present application is for UL / DL asymmetric, cellular network, uplink transmission, multi-beam / TRP / panel scenarios, the present application can also be applied to other non-UL / DL asymmetric scenarios; further, for different scenarios (such as other non-UL / DL asymmetric scenarios, including but not limited to sidelink transmission, downlink transmission, single beam / TRP / panel, RIS (Reconfigurable Intelligent Surface), Vehicle to Everything (V2X), NCR (Network Control Repeater) capacity enhancement system, short-range communication system, NTN (Non Terrestrial Network), IoT (Internet of Things), URLLC (Ultra Reliable Low Latency The use of a unified design solution for wireless communication, ultra-robust low-latency communication, and networks, etc., can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other at will.

[0007] In particular, the interpretation of the terms, nouns, functions, and variables in this application (if not otherwise specified) may refer to the definitions in the TS38 series and TS37 series in the technical specifications (TS) of 3GPP (the 3rd Generation Partnership Project). If necessary, reference may be made to TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, and TS38.423 in the 3GPP technical standards to assist in the understanding of this application.

[0008] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0009] As an example, the interpretation of the terms in the present application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0010] As an example, the interpretation of the terms in the present application refers to the definition of the TS40 series of specification protocols of 3GPP.

[0011] As an example, the interpretation of the terms in the present application refers to the definitions of the TS39 series of specification protocols of 3GPP.

[0012] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-17 version of the specification protocol of 3GPP.

[0013] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-18 version of the specification protocol of 3GPP.

[0014] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-19 version of the specification protocol of 3GPP.

[0015] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-20 version of the specification protocol of 3GPP.

[0016] The present application discloses a method in a first node used for random access of wireless communication, which includes:

[0017] Receiving a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process;

[0018] sending a first signal;

[0019] Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0020] As an embodiment, the problem to be solved by the present application includes: uplink power control of the first signal.

[0021] As an embodiment, the problem to be solved by the present application includes: PRACH uplink power control in UL / DL asymmetric scenario.

[0022] As an embodiment, the problem to be solved by the present application includes: in a UL / DL asymmetric scenario, whether the transmission power value of the PRACH transmission triggered by the PDCCHorder depends on the path loss offset.

[0023] As an embodiment, the characteristics of the above method include: whether the transmission power value of PRACH in the present application depends on the path loss offset depends on the transmission parameters of the PRACH indicated by the PDCCH Order, thereby solving the above problem.

[0024] As an embodiment, the characteristics of the above method include: in this application, the first node determines whether the receiving node of PRACH is gNB or ULTRP remote from gNB based on the transmission parameters of PRACH indicated by the PDCCHOrder, and then determines whether the transmission power value of PRACH depends on the path loss offset value, thereby solving the above problem.

[0025] As an embodiment, the characteristics of the above method include: the first domain set implicitly indicates whether the first path loss offset is enabled.

[0026] As an embodiment, the characteristics of the above method include: the transmission parameter of the first signal implicitly indicates whether the first path loss offset is enabled.

[0027] As an embodiment, the benefits of the above method include: supporting uplink and downlink asymmetric deployment scenarios and improving uplink throughput.

[0028] As an embodiment, the benefits of the above method include: the present application supports both PRACH transmission for base stations triggered by PDCCH Order and PRACH transmission for UL TRP. The base station can instruct the terminal to perform random access to the link with uplink desynchronization in a targeted manner, thereby reducing invalid transmission attempts and having higher flexibility.

[0029] As an embodiment, the benefits of the above method include: enhancing PRACH power control, saving power and improving the probability of success of the random access process.

[0030] As an embodiment, the benefits of the above method include: the terminal determines the receiver of the PRACH according to the transmission parameters indicated in the PDCCH Order, which can reduce the impact on the normal link, more effectively utilize the available resources, and improve the efficiency of the network.

[0031] As an embodiment, the benefits of the above method include: improving system stability, enhancing network flexibility, reducing interruption time, and improving user experience.

[0032] According to one aspect of the present application, the above method is characterized in that the first domain set included in the first signaling includes a first domain, and the first domain included in the first signaling indicates the random access preamble index; the transmission parameter of the first signal includes the random access preamble index indicated by the first domain; the random access preamble index indicated by the first domain is equal to the value in the first preamble index set, and the sending power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first domain is equal to the value in the second preamble index set, and the sending power value of the first signal does not depend on the first path loss offset.

[0033] As an embodiment, the problem to be solved by the present application includes: in a UL / DL asymmetric scenario, whether the transmission power value of the PRACH transmission triggered by the PDCCHorder depends on the path loss offset.

[0034] As an embodiment, the characteristics of the above method include: in the present application, the first node determines whether the transmission power of PRACH depends on the first path loss offset according to the preamble index set to which the random access preamble index indicated by PDCCHorder belongs.

[0035] As an embodiment, the characteristics of the above method include: the terminal can determine the receiver of the PRACH according to whether the random access preamble index indicated by the PDCCH Order belongs to the first preamble index set, and further determine whether the transmission power of the PRACH depends on the first path loss offset.

[0036] As an embodiment, the characteristics of the above method include: the receiver of the random access preamble indicated by the random access preamble index included in the first preamble index set is the UL TRP.

[0037] As an embodiment, the characteristics of the above method include: the recipient of the random access preamble indicated by the random access preamble index included in the second preamble index set is a gNB.

[0038] As an embodiment, the benefits of the above method include: no need for additional DCI domain explicit indication, reduced system implementation complexity, and improved compatibility.

[0039] As an embodiment, the benefits of the above method include: dividing the random access preamble, the PRACH transmission of different ULTRPs is based on different random access preambles, the terminal can accurately match the receiver of PRACH, which helps to optimize network resource utilization and improve system efficiency and performance.

[0040] According to one aspect of the present application, the above method is characterized in that the first domain set included in the first signaling includes a second domain, and the second domain included in the first signaling indicates the PRACH mask index; the transmission parameter of the first signal includes the PRACH mask index indicated by the second domain; the PRACH mask index indicated by the second domain is equal to the value in the first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH mask index indicated by the second domain is equal to the value in the second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0041] As an embodiment, the problem to be solved by the present application includes: in a UL / DL asymmetric scenario, whether the transmission power value of the PRACH transmission triggered by the PDCCHorder depends on the path loss offset.

[0042] As an embodiment, the characteristics of the above method include: in the present application, the first node determines whether the transmission power of the PRACH depends on the first path loss offset according to the PRACH mask index set to which the PRACH mask index belongs.

[0043] As an embodiment, the characteristics of the above method include: the terminal can determine the receiver of the PRACH according to whether the PRACH mask index indicated by the PDCCH Order belongs to the first PRACH mask index set, and further determine whether the transmission power of the PRACH depends on the first path loss offset.

[0044] As an embodiment, the characteristics of the above method include: the receiver of the PRACH sent in the RO indicated by the PRACH mask index included in the first PRACH mask index set is the UL TRP.

[0045] As an embodiment, the characteristics of the above method include: the receiver of the PRACH sent in the RO indicated by the PRACH mask index included in the second PRACH mask index set is the gNB.

[0046] As an embodiment, the benefits of the above method include: no need for additional DCI domain explicit indication, reduced system implementation complexity, and improved compatibility.

[0047] As an embodiment, the benefits of the above method include: dividing the RO in an SSB-RO cyclic mapping can flexibly adjust the sending time and frequency resources of random access requests for different uplinks, more effectively utilize the available wireless resources, and improve the overall performance of the system.

[0048] According to one aspect of the present application, the above method is characterized in that the transmission parameters of the first signal include PRACH opportunities; the PRACH opportunities indicated by the first domain set included in the first signaling belong to the first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH opportunities indicated by the first domain set included in the first signaling belong to the second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0049] As an embodiment, the problem to be solved by the present application includes: in a UL / DL asymmetric scenario, whether the transmission power value of the PRACH transmission triggered by the PDCCHorder depends on the path loss offset.

[0050] As an embodiment, the characteristics of the above method include: in the present application, the first node determines whether the transmission power of the PRACH depends on the first path loss offset according to the PRACH opportunity set to which the PRACH opportunity belongs.

[0051] As an embodiment, the characteristics of the above method include: the terminal can determine the PRACH receiver according to whether the PRACH opportunity indicated by the PDCCH Order belongs to the first PRACH opportunity set, and further determine whether the transmission power of the PRACH depends on the first path loss offset.

[0052] As an embodiment, the characteristics of the above method include: the receiver of the PRACH sent in the PRACH opportunities included in the first PRACH opportunity set is the UL TRP.

[0053] As an embodiment, the characteristics of the above method include: the receiver of the PRACH sent in the PRACH opportunities included in the second PRACH opportunity set is the gNB.

[0054] As an embodiment, the benefits of the above method include: no need for additional DCI domain explicit indication, reduced system implementation complexity, and improved compatibility.

[0055] As an embodiment, the benefits of the above method include: according to the time-frequency resources of the PRACH opportunity, the PRACH receiver can be determined more accurately, the network resource utilization is optimized, and the access success rate of random access and the capacity of the system are improved.

[0056] According to one aspect of the present application, the above method is characterized in that the sending power value of the first signal is equal to the smaller value between the first maximum power value and the first power value; when the sending power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the sending power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0057] As an embodiment, the problem to be solved by the present application includes: how to determine the transmit power value of PRACH.

[0058] As an embodiment, the characteristics of the above method include: in this application, when the receiver of PRACH is gNB, the item corresponding to the target path loss value in the formula for determining the transmit power value of PRACH is equal to the path loss obtained for the downlink signal; when the receiver of PRACH is UL TRP, the item corresponding to the target path loss value in the formula for determining the transmit power value of PRACH includes the path loss and the path loss offset obtained for the downlink signal, thereby solving the above problem.

[0059] As an embodiment, the characteristics of the above method include: when the receiver of PRACH is gNB, the power control of PRACH is compatible with existing standards.

[0060] As an embodiment, the characteristics of the above method include: when the receiver of PRACH is UL TRP, the path loss in the power control of PRACH is dependent on the measured path loss and the configured or indicated path loss offset, so as to facilitate the accurate calculation of the path loss associated with the UE and TRP / panel.

[0061] As an embodiment, the advantages of the above method include: minor changes to current standards, good compatibility, and ease of network topology.

[0062] As an embodiment, the benefits of the above method include: more accurate power control, saving energy and improving the success rate of random access.

[0063] According to one aspect of the present application, the above method is characterized in that the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0064] As an embodiment, the characteristics of the above method include: the first signal and one SRS resource among the at least one SRS resource are quasi-co-located.

[0065] As an embodiment, the benefits of the above method include: realizing the integrated design of uplink power control and beamforming by associating the first path loss offset with the first TCI state, thereby achieving the unity of the system.

[0066] As an embodiment, the benefits of the above method include: being facilitating multi-beam / panel / TRP transmission.

[0067] According to one aspect of the present application, the above method is characterized in that the first TCI state is associated with two TAGs.

[0068] As an embodiment, the characteristics of the above method include: the two TAGs are associated with gNB and ULTRP respectively.

[0069] As an embodiment, the characteristics of the above method include: the first TCI state is associated with two SRS resources, and the two SRS resources are respectively associated with the two TAGs.

[0070] As an embodiment, the benefits of the above method include: different uplinks belonging to different TAGs can achieve more accurate timing advance and reduce interference.

[0071] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0072] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0073] The present application discloses a method in a second node used for random access of wireless communication, which includes:

[0074] Receiving a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process;

[0075] sending a first signal;

[0076] Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0077] According to one aspect of the present application, the above method is characterized in that the first domain set included in the first signaling includes a first domain, and the first domain included in the first signaling indicates the random access preamble index; the transmission parameter of the first signal includes the random access preamble index indicated by the first domain; the random access preamble index indicated by the first domain is equal to the value in the first preamble index set, and the sending power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first domain is equal to the value in the second preamble index set, and the sending power value of the first signal does not depend on the first path loss offset.

[0078] According to one aspect of the present application, the above method is characterized in that the first domain set included in the first signaling includes a second domain, and the second domain included in the first signaling indicates the PRACH mask index; the transmission parameter of the first signal includes the PRACH mask index indicated by the second domain; the PRACH mask index indicated by the second domain is equal to the value in the first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH mask index indicated by the second domain is equal to the value in the second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0079] According to one aspect of the present application, the above method is characterized in that the transmission parameters of the first signal include PRACH opportunities; the PRACH opportunities indicated by the first domain set included in the first signaling belong to the first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH opportunities indicated by the first domain set included in the first signaling belong to the second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0080] According to one aspect of the present application, the above method is characterized in that the sending power value of the first signal is equal to the smaller value between the first maximum power value and the first power value; when the sending power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the sending power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0081] According to one aspect of the present application, the above method is characterized in that the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0082] According to one aspect of the present application, the above method is characterized in that the first TCI state is associated with two TAGs.

[0083] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0084] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

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

[0086] The present application discloses a device for a first node used for random access of wireless communication, comprising:

[0087] A first receiver receives a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process;

[0088] A first transmitter sends a first signal;

[0089] Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0090] The present application discloses a device for a second node used for random access of wireless communication, including:

[0091] A second transmitter sends a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process;

[0092] A second receiver receives the first signal;

[0093] Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0094] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0095] Supports uplink and downlink asymmetric deployment scenarios to improve uplink throughput;

[0096] This application supports both PRACH transmission for base stations and PRACH transmission for UL TRP triggered by PDCCH Order. The terminal can perform random access to the link with uplink desynchronization in a targeted manner, reduce invalid transmission attempts, and have higher flexibility.

[0097] Enhanced PRACH uplink power control to save power and increase the probability of successful random access process;

[0098] It makes minor changes to current standards, has good compatibility, and is easy for network topology. BRIEF DESCRIPTION OF THE DRAWINGS

[0099] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0100] Figure 1 A flowchart showing first node transmission according to an embodiment of the present application is shown;

[0101] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0102] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0103] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0104] Figure 5 A flow chart showing transmission between a first node and a second node according to an embodiment of the present application is shown;

[0105] Figure 6 A schematic diagram of a leading index set according to an embodiment of the present application is shown;

[0106] Figure 7 A schematic diagram of a PRACH mask index set according to an embodiment of the present application is shown;

[0107] Figure 8 A schematic diagram showing a PRACH opportunity according to an embodiment of the present application is shown;

[0108] Fig. 9 A schematic diagram showing a transmission power value of a first signal according to an embodiment of the present application;

[0109] Fig.10 A schematic diagram showing a relationship between a first TCI state and a first signal according to an embodiment of the present application;

[0110] Fig.11 A schematic diagram showing the relationship between the first TCI state and the TAG according to an embodiment of the present application;

[0111] Fig.12 A schematic diagram showing the application of the present application in an uplink and downlink asymmetric scenario according to an embodiment of the present application is shown;

[0112] Fig.13 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0113] Fig.14 A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0114] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0115] Example 1

[0116] Embodiment 1 illustrates a flowchart of the first node transmission according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the example, each box represents a step. In particular, the order of the steps in the box does not represent a specific time sequence between the steps.

[0117] In step 101 , the first node receives a first information block and a first signaling, where the first information block indicates a first path loss offset and the first signaling initiates a random access process; and in step 102 , sends a first signal.

[0118] In embodiment 1, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates transmission parameters of the first signal, the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0119] As an embodiment, the PRACH refers to: Physical Random Access CHannel, physical random access channel.

[0120] As an embodiment, the first node is the first node in the present application.

[0121] As an embodiment, the first node receives the first information block.

[0122] As an embodiment, the first information block is carried by higher layer signaling.

[0123] As an embodiment, the first information block is carried by RRC (Radio Resource Control) layer signaling.

[0124] As an embodiment, the first information block includes RRC signaling.

[0125] As an embodiment, the first information block includes one or more RRC IE (Information Element, information unit).

[0126] As an embodiment, the first information block includes one or more fields in an RRC IE.

[0127] As an embodiment, the first information block includes one or more fields of each RRC IE in multiple RRC IEs.

[0128] As an embodiment, the first information block is carried by MAC (Medium Access Control) layer signaling.

[0129] As an embodiment, the first information block includes a MAC CE (Control Element).

[0130] As an embodiment, the first information block is carried jointly by RRC layer signaling and MAC layer signaling.

[0131] As an embodiment, the unit of the first path loss offset is dB (deciBel, decibel).

[0132] As an embodiment, the value of the first path loss offset is not 0.

[0133] As an embodiment, the value of the first path loss offset is equal to 1.

[0134] As an embodiment, the first path loss offset is a number between 0 and 1.

[0135] As an embodiment, the first information block indicates the first path loss offset.

[0136] As an embodiment, the first information block configures the first path offset.

[0137] As an embodiment, the first information block updates the first path offset.

[0138] As an embodiment, the first path offset is updated by dynamic signaling.

[0139] As an embodiment, the first information block includes one or more fields in the BWP-UplinkDedicated IE.

[0140] As an embodiment, the first information block includes one or more fields in the RACH-Config IE.

[0141] As an embodiment, the first information block includes one or more fields in the RACH-ConfigTwoTA IE.

[0142] As an embodiment, the first information block includes one or more fields in the RACH-ConfigCommon IE.

[0143] As an embodiment, the first information block includes one or more fields in the RACH-ConfigGeneric IE.

[0144] As an embodiment, the first information block includes one or more fields in the MsgA-ConfigCommon IE.

[0145] As an embodiment, the first information block includes one or more fields in the RACH-ConfigCommonTwoStepRA IE.

[0146] As an embodiment, the first information block includes one or more fields in the RACH-ConfigGenericTwoStepRA IE.

[0147] As an embodiment, the first information block includes one or more fields in the RACH-ConfigDedicated IE.

[0148] As an embodiment, the first information block includes one or more fields in the CFRA IE.

[0149] As an embodiment, the first information block includes one or more fields in the CFRA-TwoStep IE.

[0150] As an embodiment, the first information block includes one or more fields in the BWP-DownlinkDedicated IE.

[0151] As an embodiment, the first information block includes one or more fields in the ControlResourceSet IE.

[0152] As an embodiment, the first information block includes one or more fields in TCI-State IE.

[0153] As an embodiment, the first information block includes one or more fields in TCI-UL-State IE.

[0154] As an embodiment, the first node receives the first signaling.

[0155] As an embodiment, the first signaling is physical layer signaling.

[0156] As an embodiment, the first signaling is dynamic signaling.

[0157] As an embodiment, the first signaling initiates the random access process.

[0158] As an embodiment, the first signaling triggers the random access process.

[0159] As an embodiment, the first signaling includes DCI (Downlink Control Information).

[0160] As an embodiment, the DCI format corresponding to the first signaling is DCI format 1_0.

[0161] As an embodiment, the CRC (Cyclic redundancy check) included in the first signaling is scrambled by C (Cell)-RNTI (Radio Network Temporary Identifier).

[0162] As an embodiment, the FDRA (Frequency Domain Resource Assignment) field included in the first signaling is all 1s.

[0163] As an embodiment, the first signaling is a PDCCH (Physical Downlink ControlCHannel) Order.

[0164] As an embodiment, the first node sends the first signal.

[0165] As an embodiment, the transmission of the first signal is a response to the reception of the first signaling.

[0166] As an embodiment, the first node sends the first signal in response to receiving the first signaling.

[0167] As an embodiment, the first signal is a baseband signal.

[0168] As an embodiment, the first signal is a radio frequency signal.

[0169] As an embodiment, the first signal is a wireless signal.

[0170] As an embodiment, the random access process initiated by the first signaling includes the first signal.

[0171] As an embodiment, the random access process initiated by the first signaling includes sending the first signal.

[0172] As an embodiment, the first node sends the first signal for the random access process.

[0173] As an embodiment, the first signal is used for random access.

[0174] As an embodiment, the random access procedure is used to acquire uplink synchronization.

[0175] As an embodiment, the random access procedure is used to acquire uplink synchronization with a sender of the first signaling.

[0176] As an embodiment, the random access process is used to obtain uplink synchronization with a UL (UpLink) TRP (Transmitter Receiver Point) of a sender of the first signaling.

[0177] As an embodiment, the first signal is used to acquire uplink synchronization.

[0178] As an embodiment, the first signal is for acquiring uplink synchronization with the sender of the first signaling.

[0179] As an embodiment, the first signal is used to acquire uplink synchronization with the ULTRP of the sender of the first signaling.

[0180] As an embodiment, the random access procedure is used to establish time alignment.

[0181] As an embodiment, the first signal is used to establish time consistency.

[0182] As an embodiment, the random access procedure is used for LTM (L1 / L2-Triggered Mobility).

[0183] As an embodiment, the first signal is used for LTM.

[0184] As an embodiment, the first signal is generated by a pseudo-random sequence.

[0185] As an embodiment, the first signal includes a ZC sequence (Zadoff-Chu sequence).

[0186] As an embodiment, the first signal is generated by a ZC sequence.

[0187] As an embodiment, the first signal includes RACH (Random Access CHannel).

[0188] As an embodiment, the first signal includes PRACH.

[0189] As an embodiment, the first signal is generated by a preamble sequence.

[0190] As an embodiment, the first signal includes a Preamble.

[0191] As an embodiment, the first signal includes only one Preamble.

[0192] As an embodiment, the Preamble included in the first signal is allocated by the sender of the first signaling.

[0193] As an embodiment, the Preamble included in the first signal is indicated by the sender of the first signaling.

[0194] As an embodiment, the Preamble sent in the random access process is allocated by the sender of the first signaling.

[0195] As an embodiment, the Preamble sent in the random access process is indicated by the sender of the first signaling.

[0196] As an embodiment, the random access process is a contention-free random access (Contention Free Random Access, CFRA) process.

[0197] As an embodiment, the random access process is a four-step random access process.

[0198] As an embodiment, the random access process is a Type-1 random access process.

[0199] As an embodiment, the first signal includes Msg1 (message 1).

[0200] As an example, Msg1 in the present application refers to Massage 1 or Msg 1 or MSG1.

[0201] As an embodiment, the random access process is a two-step random access process.

[0202] As an embodiment, the random access process is a Type-2 random access process.

[0203] As an embodiment, the first signal includes MsgA (Message A).

[0204] As an example, MsgA described in the present application refers to Massage A or Msg A or MSGA.

[0205] As an embodiment, the first signaling includes the first domain set.

[0206] As an embodiment, the first signaling includes at least one domain.

[0207] As an embodiment, the first signaling includes at least one DCI.

[0208] As an embodiment, the first domain set includes at least one domain.

[0209] As an embodiment, the first domain set includes at least one DCI domain.

[0210] As an embodiment, each field in the first field set includes at least one bit.

[0211] As an embodiment, the first signaling includes at least one domain that does not belong to the first domain set.

[0212] As an embodiment, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of the random access preamble index (Preamble Index), the PRACH mask index (PRACH Mask Index) or the PRACH Occasion (PRACH Occasion).

[0213] As an embodiment, the first domain set indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0214] As an embodiment, the transmission parameters of the first signal include at least one of the random access preamble index, the PRACH mask index or the PRACH opportunity, and the first domain set included in the first signaling indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0215] As an embodiment, the first signaling indicates at least one of the random access preamble index, the PRACH mask index and the PRACH opportunity, and the first domain set included in the first signaling indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0216] As an embodiment, the transmission parameters of the first signal include the random access preamble index.

[0217] As an embodiment, the random access preamble index is a non-negative integer not greater than 63.

[0218] As an embodiment, a field included in the first field set indicates the random access preamble index.

[0219] As an embodiment, a field included in the first field set indicates a random access preamble index.

[0220] As an embodiment, the first domain set includes a DCI domain Random Access Preamble index, and the DCI domain Random Access Preamble index indicates the random access preamble index.

[0221] As an embodiment, the transmission parameters of the first signal include the PRACH mask index.

[0222] As an embodiment, the PRACH mask index is equal to 0.

[0223] As an embodiment, the PRACH mask index is equal to 10.

[0224] As an embodiment, the PRACH mask index is equal to 15.

[0225] As an embodiment, the PRACH mask index is an integer between 0 and 10.

[0226] As an embodiment, the PRACH mask index is an integer between 0 and 15.

[0227] As an embodiment, a field included in the first field set indicates the PRACH mask index.

[0228] As an embodiment, a domain included in the first domain set indicates a PRACH mask index.

[0229] As an embodiment, the first domain set includes a DCI domain PRACH Mask index, and the DCI domain PRACH Mask index indicates the PRACH mask index.

[0230] As an embodiment, one of the PRACH mask indexes indicates at least one PRACH opportunity.

[0231] As an embodiment, one of the PRACH mask indexes indicates at least one RO in an SSB-RO mapping cycle.

[0232] As an embodiment, one of the PRACH mask indexes indicates at least one RO among the ROs mapped to the same SSB index in an SSB-RO cyclic mapping.

[0233] As an embodiment, the SSB-RO mapping cycle means that all SSBs transmitted within one SSB cycle are mapped to RO once.

[0234] As an embodiment, the one SSB-RO mapping cycle means that all SSBs transmitted in one SSB burst set (discoveryburst) are mapped to RO once.

[0235] As an embodiment, the one SSB-RO mapping cycle is used to determine the mapping relationship between all SSB indexes and ROs in a time window.

[0236] As an embodiment, the one SSB-RO mapping cycle is used to determine at least one of the time domain position or the frequency domain position of the RO mapped to all SSB indexes in a time window.

[0237] As an embodiment, the transmission parameter of the first signal includes the PRACH timing.

[0238] As an embodiment, one PRACH opportunity occupies at least one symbol in the time domain.

[0239] As an embodiment, one PRACH opportunity occupies at least one subcarrier in the frequency domain.

[0240] As an embodiment, one PRACH opportunity occupies at least one RE (Resource Element).

[0241] Typically, one RE occupies one symbol in the time domain and one subcarrier in the frequency domain.

[0242] As an embodiment, one PRACH opportunity occupies at least one RB (Resource Block).

[0243] Typically, one RB occupies 12 consecutive subcarriers in the frequency domain.

[0244] As an embodiment, the first domain set includes multiple domains, and the multiple domains jointly indicate the PRACH timing.

[0245] As an embodiment, the first domain set includes multiple domains, and at least two domains of the multiple domains jointly indicate the PRACH timing.

[0246] As an embodiment, the first domain set indicates multiple PRACH opportunities.

[0247] As an embodiment, the first domain set indicates one of the PRACH opportunities.

[0248] As an embodiment, the first signal occupies one of the PRACH opportunities.

[0249] As an embodiment, one of the PRACH occasions is a RO.

[0250] As an embodiment, one of the PRACH occasions is a RACH Occasion.

[0251] As an embodiment, one of the PRACH occasions is a RA (Random Access) Occasion.

[0252] As an embodiment, the PRACH opportunity described in the present application is a valid PRACH opportunity.

[0253] As an embodiment, any two of the PRACH Occasion, the RACH Occasion, the RAOccasion and the RO in the present application may be replaced with each other without affecting implementation.

[0254] As an embodiment, the transmit power value of the first signal depends on the path loss obtained for the downlink signal.

[0255] As an embodiment, the unit of the transmission power value of the first signal is dBm (deciBel relative to one milliwatt).

[0256] As an embodiment, the unit of the transmission power value of the first signal is mW (milliWatt).

[0257] As an embodiment, the unit of the transmission power value of the first signal is W (Watt, watt).

[0258] As an embodiment, the first node measures the downlink signal to obtain the path loss.

[0259] As an embodiment, the downlink signal is a reference signal (Reference Signal).

[0260] As an embodiment, the downlink signal is SSB.

[0261] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0262] As an embodiment, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block, synchronization signal / physical broadcast channel block.

[0263] Typically, the reception timings of the PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are in consecutive symbols and form an SS / PBCH block.

[0264] As an embodiment, the downlink signal and the DM-RS (DeModulation-Reference Signal) of the first signaling are quasi co-located (Quasi Co-Located, QCLed).

[0265] As an embodiment, the first signaling indicates the downlink signal.

[0266] As an embodiment, the first signaling directly indicates the reference signal identifier corresponding to the downlink signal.

[0267] As an embodiment, the first signaling indirectly indicates the corresponding reference signal identifier of the downlink signal by indicating the corresponding RRC IE.

[0268] As an embodiment, the path loss obtained for the downlink signal is downlink.

[0269] As an embodiment, the unit of the path loss obtained for the downlink signal is dB.

[0270] As an embodiment, the path loss obtained for the downlink signal is equal to the expected power of the downlink signal minus the received power obtained by measuring the downlink signal.

[0271] As an embodiment, the path loss obtained for the downlink signal is equal to the expected power of the downlink signal minus the RSRP (Reference Signal Receiving Power) obtained by measuring the downlink signal.

[0272] As an embodiment, the path loss obtained for the downlink signal is obtained by the first node subtracting the RSRP of the downlink signal that has been filtered by a higher layer from the expected power of the downlink signal.

[0273] As an embodiment, the expected power of the downlink signal described in the present application is configured by higher layer signaling.

[0274] As an embodiment, the expected power of the downlink signal described in the present application is configured by RRC signaling.

[0275] As an embodiment, the expected power of the downlink signal described in the present application is indicated by higher layer signaling.

[0276] As an embodiment, the expected power of the downlink signal described in the present application is indicated by RRC signaling.

[0277] As an embodiment, the RSRP obtained by measuring the downlink signal in the present application is the RSRP filtered by a higher layer.

[0278] As an embodiment, the RSRP obtained by measuring the downlink signal in the present application is the RSRP of Layer 3 (Layer 3, L3).

[0279] As an embodiment, the RSRP obtained by measuring the downlink signal in the present application is L3-RSRP.

[0280] As an embodiment, the unit of RSRP obtained by measuring the downlink signal in the present application is dBm.

[0281] As an embodiment, the transmit power value of the first signal is linearly correlated with the path loss obtained for the downlink signal.

[0282] As an embodiment, the transmit power value of the first signal is linearly correlated with the path loss obtained for the downlink signal when it is not greater than the maximum output power of the first node.

[0283] As an embodiment, the first path loss offset is associated with the downlink signal.

[0284] As an embodiment, the first path loss offset is associated with a first TCI (Transmission Configuration Indicator) state, and the first path loss offset is configured to the first TCI state.

[0285] As a sub-embodiment of this embodiment, the first TCI state is a UL TCI state.

[0286] As a sub-embodiment of this embodiment, the QCL (Quasi Co-Location) information of the first TCI state includes resources occupied by the downlink signal.

[0287] As a sub-embodiment of this embodiment, the PathlossReferenceRS of the first TCI state includes the downlink signal.

[0288] As a sub-embodiment of this embodiment, the first TCI state includes pathlossReferenceRS-Id, and the pathlossReferenceRS-Id indicates the downlink signal.

[0289] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0290] As an embodiment, whether the transmit power value of the first signal depends on both the path loss obtained for the downlink signal and the first path loss offset depends on the transmission parameter of the first signal.

[0291] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the random access preamble index indicated by the first domain set.

[0292] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH mask index indicated by the first domain set.

[0293] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH timing indicated by the first domain set.

[0294] Example 2

[0295] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0296] Attached Figure 2A network architecture 200 is illustrated. The network architecture 200 is a network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G system, 5G-Advanced and future 6G system. The network architecture for LTE, LTE-A, 5G system, 5G-Advanced and future 6G system is referred to as EPS (Evolved Packet System). The 5GNR or LTE network architecture may be referred to as 5GS (5G System) / EPS or some other suitable term; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other suitable term. The network architecture 200 may include one or more UEs 201, RAN (Next Generation Radio Access Network) 202, a core network 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220 and an Internet service 230. . The network architecture 200 can be interconnected with other access networks, but for simplicity these entities / interfaces are not shown. Figure 2As shown, the network architecture 200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. RAN 202 includes Node B 203 and other nodes 204. Node 203 provides user and control plane protocol terminations toward UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul). Node 203 may also be referred to as a base station, a base transceiver station, a wireless base station, a wireless transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (Transmitter Receiver Point), or some other suitable terminology. Node 203 provides an access point to a core network 210 for UE 201; the core network 210 is a 5GC (5G Core Network, 5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. Node 203 is connected to core network 210 via an S1 / NG interface.The core network 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is a control node that handles signaling between UE 201 and 5G-CN / EPC 210. In general, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which itself is connected to P-GW / UPF 213. P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet service 230. Internet service 230 includes operator-specific Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet switching services.

[0297] As an embodiment, the first node in the present application includes the UE 201.

[0298] As an embodiment, the second node in the present application includes the node 203.

[0299] As an embodiment, the node 203 is a macro cell base station.

[0300] As an embodiment, the node 203 is a micro cell base station.

[0301] As an embodiment, the node 203 is a pico cell base station.

[0302] As an embodiment, the node 203 is a home base station (Femtocell).

[0303] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0304] As an embodiment, the node 203 is a flying platform device.

[0305] As an embodiment, the node 203 is a satellite device.

[0306] As an embodiment, the node 203 is a test device (eg, a transceiver device simulating some functions of a base station, a signaling tester).

[0307] As an embodiment, the node 203 is a UL TRP.

[0308] As an embodiment, the node 203 is a DL TRP.

[0309] As an embodiment, the node 203 includes a traditional uplink receiving point and a remote ULTRP.

[0310] As an embodiment, the UE 201 includes a mobile phone.

[0311] As an embodiment, the UE 201 is a vehicle including a car.

[0312] As an embodiment, the wireless link from the UE 201 to the node 203 is an uplink, and the uplink is used to perform uplink transmission.

[0313] As an embodiment, the wireless link from the node 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0314] As an embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0315] As an embodiment, the node 203 and the UE 201 are connected via a Uu air interface.

[0316] As an embodiment, the sender of the first information block includes the node 203.

[0317] As an embodiment, the receiver of the first information block includes the UE 201.

[0318] As an embodiment, the sender of the first signaling includes the node 203.

[0319] As an embodiment, the recipient of the first signaling includes the UE 201.

[0320] As an embodiment, the sender of the first signal includes the UE 201.

[0321] As an embodiment, the receiver of the first signal includes the node 203.

[0322] As an embodiment, the receiver of the first signal includes the node 204.

[0323] As an embodiment, the UE 201 supports UL / DL asymmetric deployment.

[0324] As an embodiment, the node 203 supports UL / DL asymmetric deployment.

[0325] As an embodiment, the node 203 and the node 204 support UL / DL asymmetric deployment.

[0326] As an embodiment, the node 203 supports shutting down DL transmission.

[0327] As an embodiment, the node 204 supports shutting down DL transmission.

[0328] As an embodiment, the UE 201 supports multi-panel (antenna panel) / TRP transmission.

[0329] As an embodiment, the UE 201 supports the Unified TCI framework.

[0330] As an embodiment, the UE 201 supports a 5G system.

[0331] As an embodiment, the node 203 supports a 5G system.

[0332] As an embodiment, the UE 201 at least supports the 6G system.

[0333] As an embodiment, the node 203 at least supports the 6G system.

[0334] Example 3

[0335] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0336] Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The wireless protocol architecture of the control plane 300 for the first communication node device (RSU (Road Side Unit) in UE or V2X (Vehicle to Everything), vehicle-mounted device or vehicle-mounted communication module) and the second node device (gNB, RSU in UE or V2X, vehicle-mounted device or vehicle-mounted communication module), or between two UEs is presented in three layers: Layer 1 (Layer 1, L1), Layer 2 (Layer 2, L2) and Layer 3 (Layer 3, L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to as PHY 301 in this article. L2305 is above PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs through PHY 301. L2305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides inter-zone mobility support for the first communication node device between the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception caused by HARQ (Hybrid Automatic Repeat 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 a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The wireless protocol architecture of the user plane 350 includes layer 1 (L1) and layer 2 (L2). The wireless protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in L2355, the RLC sublayer 353 in L2355, and the MAC sublayer 352 in L2355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. L2355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support business diversity. Although not shown in the figure, the first communication node device may have several upper layers above L2355, including a network layer (e.g., IP (Internet Protocol) layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, a server, etc.).

[0337] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0338] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0339] As an embodiment, the first information block is generated in the RRC 306.

[0340] As an embodiment, the first signaling is generated by the PHY 301 or PHY 351.

[0341] As an embodiment, the first signal is generated by the PHY 301 or PHY 351 .

[0342] As an embodiment, the higher layer mentioned in this application refers to a layer above the physical layer.

[0343] As an embodiment, the higher layer described in the present application includes a MAC layer.

[0344] As an embodiment, the higher layer described in the present application includes an RRC layer.

[0345] Example 4

[0346] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached Figure 4 Attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0347] The first communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0348] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0349] In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of L2. In DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-PSK, M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., pilot) in the time domain and / or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying a time domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to different antennas 420.

[0350] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of L1. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any parallel stream with the second communication device 450 as the destination. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of L2. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above L2. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using ACKnowledgement (ACK) and / or negative ACKnowledgement (Negative ACKnowledgement, NACK) protocols to support HARQ operations.

[0351] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0352] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of L1. The controller / processor 475 implements the L2 functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0353] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 device at least receives a first information block and a first signaling, the first information block indicates a first path loss offset, the first signaling initiates a random access process; sends a first signal; the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates a transmission parameter of the first signal, the transmission parameter of the first signal includes one of a random access preamble index, a PRACH mask index or a PRACH opportunity; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameter of the first signal.

[0354] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first information block and a first signal; and sending a first signal.

[0355] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least sends a first information block and a first signaling, the first information block indicates a first path loss offset, and the first signaling initiates a random access process; receives a first signal; the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates a transmission parameter of the first signal, and the transmission parameter of the first signal includes one of a random access preamble index, a PRACH mask index, or a PRACH opportunity; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameter of the first signal.

[0356] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending a first information block and a first signal; and receiving a first signal.

[0357] As an embodiment, the first node in the present application includes the second communication device 450.

[0358] As an embodiment, the second node in the present application includes the first communication device 410.

[0359] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a first information block and a first signaling; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a first information block and a first signaling.

[0360] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send a first signal; and at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, and the memory 476} is used to receive a first signal.

[0361] Example 5

[0362] Embodiment 5 illustrates a flow chart of transmission between a first node and a second node according to an embodiment of the present application. Figure 5 In the embodiment, the first node U1 and the second node N2 communicate with each other via a wireless link. It should be noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

[0363] For the first node U1, a first information block is received in step S510; a first signaling is received in step S511; and a first signal is sent in step S512.

[0364] For the second node N2, a first information block is sent in step S520; a first signaling is sent in step S521; and a first signal is received in step S522.

[0365] In Example 5, the first information block indicates a first path loss offset, and the first signaling initiates a random access process; the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, and the first domain set indicates a transmission parameter of the first signal, and the transmission parameter of the first signal includes one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameter of the first signal.

[0366] As an embodiment, the first node U1 is the first node in this application.

[0367] As an embodiment, the second node N2 is the second node in this application.

[0368] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0369] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0370] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0371] As an embodiment, the air interface between the second node N2 and the first node U1 includes one or more of a wireless interface between a TRP and a user equipment, a wireless interface between a CU (Centralized Unit) and a user equipment, or a wireless interface between a DU (Distributed Unit) and a user equipment.

[0372] As an embodiment, the second node N2 and the first node U1 communicate with each other via a Uu interface.

[0373] As an embodiment, the second node N2 is a base station maintaining a service cell of the first node U1.

[0374] As an embodiment, the first information block is transmitted on a physical layer data channel (transmitting user data).

[0375] As an embodiment, the first information block is transmitted on a physical layer control channel (only used for transmitting physical layer control signaling).

[0376] As an embodiment, the physical layer channel occupied by the first information block includes PDCCH.

[0377] As an embodiment, the physical layer channel occupied by the first information block includes PDSCH (Physical Downlink Shared CHannel, physical layer data signal).

[0378] As an embodiment, the first signaling is transmitted on a physical layer control channel (only used for transmitting physical layer control signaling).

[0379] As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH.

[0380] As an embodiment, the physical layer channel occupied by the first signal includes PRACH.

[0381] As an embodiment, the second node includes a traditional uplink receiving point and a remote ULTRP.

[0382] As an embodiment, the receiver of the first signal is the traditional uplink receiving point of the second node.

[0383] As an embodiment, the receiver of the first signal is the remote ULTRP of the second node.

[0384] As an embodiment, the receiver of the first signal and the sender of the first signaling are co-located.

[0385] As an embodiment, the receiver of the first signal and the sender of the first signaling are not co-located.

[0386] As an embodiment, step S510 is before step S511; step S520 is before step S521.

[0387] As an embodiment, step S511 is before step S512; step S521 is before step S522.

[0388] Example 6

[0389] Embodiment 6 illustrates a schematic diagram of a leading index set according to an embodiment of the present application, as shown in the attached figure. Figure 6 As shown in the attached Figure 6In the embodiment, the first field set included in the first signaling includes a first field, and the first field included in the first signaling indicates the random access preamble index; a rectangle filled with a lower diagonal line represents a preamble index in the first preamble index set; a rectangle filled with an upper diagonal line represents a preamble index in the second preamble index set; case (a) indicates that the random access preamble index indicated by the first field included in the first signaling is equal to the value in the first preamble index set; case (b) indicates that the random access preamble index indicated by the first field included in the first signaling is equal to the value in the second preamble index set.

[0390] In embodiment 6, the transmission parameters of the first signal include the first field indicating the random access preamble index; the random access preamble index indicated by the first field is equal to the value in the first preamble index set, and the transmission power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first field is equal to the value in the second preamble index set, and the transmission power value of the first signal does not depend on the first path loss offset.

[0391] As an embodiment, the first field set included in the first signaling includes a first field, and the first field included in the first signaling indicates the random access preamble index.

[0392] As an embodiment, the first domain set included in the first signaling includes at least one domain in the DCI.

[0393] As an embodiment, the first domain set included in the first signaling only includes one domain in the DCI, and the only one domain in the DCI is the first domain.

[0394] As an embodiment, the first field included in the first signaling occupies a positive integer number of bits greater than 1.

[0395] As an embodiment, the first field included in the first signaling occupies 6 bits.

[0396] As an embodiment, the indication value of the first field included in the first signaling is a value other than all zeros.

[0397] As an embodiment, the first field included in the first signaling is a Random Access Preamble index field.

[0398] As an embodiment, the first field included in the first signaling indicates PREAMBLE_INDEX in a 3GPP (3rd Generation Partner Project) protocol.

[0399] As an embodiment, the transmission parameters of the first signal include the first field indicating the random access preamble index.

[0400] As an embodiment, the first field set only indicates the random access preamble index in the transmission parameters of the first signal.

[0401] As an embodiment, the random access preamble index indicated by the first domain is equal to the value in the first preamble index set, and the transmit power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first domain is equal to the value in the second preamble index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0402] As an embodiment, the random access preamble index indicated by the first domain is equal to a value in a first preamble index set, and the transmit power value of the first signal depends on the first path loss offset.

[0403] As an embodiment, the first leading index set is fixed.

[0404] As an embodiment, the first leading index set is predefined.

[0405] As an embodiment, the first preamble index set is configured through RRC signaling.

[0406] As an embodiment, the first preamble index set is explicitly configured through RRC signaling.

[0407] As an embodiment, the first preamble index set is implicitly configured through RRC signaling.

[0408] As an embodiment, the first leading index set includes a positive integer number of leading indexes.

[0409] As an embodiment, the first preamble index set includes a positive integer number of random access preamble indices.

[0410] As an embodiment, the leading indexes in the first leading index set are all leading indexes used for CFRA.

[0411] As an embodiment, the first preamble index set includes preamble indexes for CFRA and CBRA (Contention Free Random Access, contention-based); the advantage of the above method is that it supports CBRA for mid-terminals facing gNB or UL TRP, which can specifically repair the out-of-sync uplink and improve system performance and user experience.

[0412] As an embodiment, the random access preamble index indicated by the first domain is equal to a value in a second preamble index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0413] As an embodiment, the second leading index set is fixed.

[0414] As an embodiment, the second leading index set is predefined.

[0415] As an embodiment, the second preamble index set is configured through RRC signaling.

[0416] As an embodiment, the second preamble index set is explicitly configured through RRC signaling.

[0417] As an embodiment, the second preamble index set is implicitly configured through RRC signaling.

[0418] As an embodiment, the second leading index set includes a positive integer number of leading indexes.

[0419] As an embodiment, the second preamble index set includes a positive integer number of random access preamble indices.

[0420] As an embodiment, the leading indexes in the second leading index set are all leading indexes used for CFRA.

[0421] As an embodiment, the second preamble index set includes preamble indexes for CFRA and CBRA; the advantage of the above method is that it supports CBRA of the mid-terminal facing gNB or UL TRP, which can specifically repair the out-of-sync uplink and improve system performance and user experience.

[0422] As an embodiment, the first leading index set and the second leading index set are orthogonal.

[0423] As an embodiment, any leading index assigned to the first node belongs to the first leading index set or the second leading index set.

[0424] As an embodiment, the lowest bit of the leading indexes included in the first leading index set is equal to 0, and the lowest bit of the leading indexes included in the second leading index set is equal to 1.

[0425] As an embodiment, the lowest bit of the leading indexes included in the first leading index set is equal to 1, and the lowest bit of the leading indexes included in the second leading index set is equal to 0.

[0426] As an embodiment, the highest bit of the leading index included in the first leading index set is equal to 0, and the highest bit of the leading index included in the second leading index set is equal to 1.

[0427] As an embodiment, the highest bit of the leading index included in the first leading index set is equal to 1, and the highest bit of the leading index included in the second leading index set is equal to 0.

[0428] Example 7

[0429] Embodiment 7 illustrates a schematic diagram of a PRACH mask index set according to an embodiment of the present application, as shown in the attached Figure 7 As shown in the attached Figure 7 In the embodiment, the first field set included in the first signaling includes a second field, and the second field included in the first signaling indicates the PRACH mask index; a rectangle filled with horizontal lines represents a PRACH mask index in the first PRACH mask index set; a rectangle filled with vertical lines represents a PRACH mask index in the second PRACH mask index set; case (a) indicates that the PRACH mask index indicated by the second field included in the first signaling is equal to the value in the first PRACH mask index set; case (b) indicates that the PRACH mask index indicated by the second field included in the first signaling is equal to the value in the second PRACH mask index set.

[0430] In embodiment 7, the transmission parameters of the first signal include the PRACH mask index indicated by the second field; the PRACH mask index indicated by the second field is equal to the value in the first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH mask index indicated by the second field is equal to the value in the second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0431] As an embodiment, the first field set included in the first signaling includes a second field, and the second field included in the first signaling indicates the PRACH mask index.

[0432] As an embodiment, the first domain set included in the first signaling includes at least one domain in the DCI.

[0433] As an embodiment, the first domain set included in the first signaling only includes one domain in the DCI, and the only one domain in the DCI is the second domain.

[0434] As an embodiment, the second field included in the first signaling occupies a positive integer number of bits greater than 1.

[0435] As an embodiment, the second field included in the first signaling occupies 4 bits.

[0436] As an embodiment, the second field included in the first signaling is a PRACH Mask index field.

[0437] As an embodiment, the transmission parameters of the first signal include the PRACH mask index indicated by the second field.

[0438] As an embodiment, the first domain set only indicates the PRACH mask index in the transmission parameters of the first signal.

[0439] As an embodiment, the PRACH mask index indicated by the second domain is equal to a value in a first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset.

[0440] As an embodiment, the first PRACH mask index set is fixed.

[0441] As an embodiment, the first PRACH mask index set is predefined.

[0442] As an embodiment, the first PRACH mask index set is configured through RRC signaling.

[0443] As an embodiment, the first PRACH mask index set is explicitly configured through RRC signaling.

[0444] As an embodiment, the first PRACH mask index set is implicitly configured through RRC signaling.

[0445] As an embodiment, the first PRACH mask index set includes a positive integer number of PRACH mask indices.

[0446] As an embodiment, the mask indexes included in the first PRACH mask index set are all used for CFRA.

[0447] As an embodiment, the PRACH mask index indicated by the second domain is equal to a value in a second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0448] As an embodiment, the second PRACH mask index set is fixed.

[0449] As an embodiment, the second PRACH mask index set is predefined.

[0450] As an embodiment, the second PRACH mask index set is configured through RRC signaling.

[0451] As an embodiment, the second PRACH mask index set is explicitly configured through RRC signaling.

[0452] As an embodiment, the second PRACH mask index set is implicitly configured through RRC signaling.

[0453] As an embodiment, the second PRACH mask index set includes a positive integer number of PRACH mask indices.

[0454] As an embodiment, the mask indexes included in the second PRACH mask index set are all used for CFRA.

[0455] As an embodiment, the first PRACH mask index set and the second PRACH mask index set are orthogonal.

[0456] As an embodiment, any PRACH mask index indicated by the second domain included in the first domain set belongs to the first PRACH mask index set or belongs to the second PRACH mask index set.

[0457] As an embodiment, the first signaling indicates that in an SSB-RO cyclic mapping described in the present application, one SSB is mapped to multiple ROs.

[0458] As an embodiment, the lowest bit of the preamble index included in the first PRACH mask index set is equal to 0, and the lowest bit of the preamble index included in the second PRACH mask index set is equal to 1.

[0459] As an embodiment, the lowest bit of the preamble index included in the first PRACH mask index set is equal to 1, and the lowest bit of the preamble index included in the second PRACH mask index set is equal to 0.

[0460] As an embodiment, the highest bit of the preamble index included in the first PRACH mask index set is equal to 0, and the highest bit of the preamble index included in the second PRACH mask index set is equal to 1.

[0461] As an embodiment, the highest bit of the preamble index included in the first PRACH mask index set is equal to 1, and the highest bit of the preamble index included in the second PRACH mask index set is equal to 0.

[0462] Example 8

[0463] Embodiment 8 illustrates a schematic diagram of a PRACH opportunity according to an embodiment of the present application, as shown in the attached Figure 8 As shown in the attached Figure 8 In the figure, a rectangle filled with solid gray represents a PRACH opportunity in the first PRACH opportunity set; a rectangle filled with cross diamonds represents a PRACH opportunity in the second PRACH opportunity set; case (a) indicates that the PRACH opportunity indicated by the first domain set included in the first signaling belongs to the first PRACH opportunity set; case (b) indicates that the PRACH opportunity indicated by the first domain set included in the first signaling belongs to the second PRACH opportunity set.

[0464] In Embodiment 8, the transmission parameter of the first signal includes the PRACH opportunity.

[0465] As an embodiment, the transmission parameters of the first signal include the PRACH opportunity; the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0466] As an embodiment, the transmission parameter of the first signal includes the PRACH timing.

[0467] As an embodiment, the first domain set included in the first signaling indicates the PRACH opportunity occupied by the first signal.

[0468] As an embodiment, the first domain set included in the first signaling includes multiple DCI domains, and the multiple DCI domains jointly indicate the PRACH timing.

[0469] As an embodiment, the first field set included in the first signaling includes at least one of a Random Access Preamble index field, a UL / SUL indicator field, a SS / PBCH index field, and a PRACH Mask index field.

[0470] As an embodiment, the first domain set of the first signaling includes at least the first domain and the second domain in the present application, and the at least the first domain and the second domain jointly indicate the PRACH timing, and whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH timing indicated by the first domain set.

[0471] As an embodiment, each field in the first field set includes a positive integer number of bits.

[0472] As an embodiment, the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset.

[0473] As an embodiment, the first PRACH opportunity set is fixed.

[0474] As an embodiment, the first PRACH opportunity set is predefined.

[0475] As an embodiment, the first PRACH opportunity set is configured through RRC signaling.

[0476] As an embodiment, the first PRACH opportunity set is explicitly configured through RRC signaling.

[0477] As an embodiment, the first PRACH opportunity set is implicitly configured through RRC signaling.

[0478] As an embodiment, the first PRACH opportunity set includes a positive integer number of PRACH opportunities.

[0479] As an embodiment, the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0480] As an embodiment, the second PRACH opportunity set is fixed.

[0481] As an embodiment, the second PRACH opportunity set is predefined.

[0482] As an embodiment, the second PRACH opportunity set is configured through RRC signaling.

[0483] As an embodiment, the first PRACH opportunity set is explicitly configured through RRC signaling.

[0484] As an embodiment, the first PRACH opportunity set is implicitly configured through RRC signaling.

[0485] As an embodiment, the second PRACH opportunity set includes a positive integer number of PRACH opportunities.

[0486] As an embodiment, the first PRACH opportunity set and the second PRACH opportunity set are orthogonal.

[0487] As an embodiment, any PRAACH opportunity indicated by the first domain set belongs to the first PRACH opportunity set or belongs to the second PRACH opportunity set.

[0488] As an embodiment, the first PRACH opportunity set includes one PRACH opportunity for every even number (every even) in the SSB-RO cyclic mapping described in the present application; the second PRACH opportunity set includes one PRACH opportunity for every odd number (every odd) in the SSB-RO cyclic mapping described in the present application.

[0489] As an embodiment, the first PRACH opportunity set includes one PRACH opportunity for each odd number in the SSB-RO cyclic mapping described in the present application; the second PRACH opportunity set includes one PRACH opportunity for each even number in the SSB-RO cyclic mapping described in the present application.

[0490] As an embodiment, the first PRACH opportunity set includes the first N PRACH opportunities in the SSB-RO cyclic mapping described in the present application; the second PRACH opportunity set includes the last N PRACH opportunities in the SSB-RO cyclic mapping described in the present application; an SSB-RO cyclic mapping described in the present application includes 2N ROs, where N is a positive integer.

[0491] As an embodiment, the first PRACH opportunity set includes the last N PRACH opportunities in the SSB-RO cyclic mapping described in the present application; the second PRACH opportunity set includes the first N PRACH opportunities in the SSB-RO cyclic mapping described in the present application; an SSB-RO cyclic mapping described in the present application includes 2N ROs, where N is a positive integer.

[0492] As an embodiment, the first PRACH opportunity set includes the first PRACH opportunity in the SSB-RO cycle mapping described in the present application; the second PRACH opportunity set includes a PRACH opportunity other than the first PRACH opportunity in the SSB-RO cycle mapping described in the present application; and an SSB-RO cycle mapping described in the present application includes at least two PRACH opportunities.

[0493] As an embodiment, the first PRACH opportunity set includes the last PRACH opportunity in the SSB-RO cycle mapping described in the present application; the second PRACH opportunity set includes a PRACH opportunity other than the last PRACH opportunity in the SSB-RO cycle mapping described in the present application; an SSB-RO cycle mapping described in the present application includes at least two PRACH opportunities.

[0494] As an embodiment, the first PRACH opportunity set includes the first M PRACH opportunities in the SSB-RO cyclic mapping described in the present application; the second PRACH opportunity set includes the last K PRACH opportunities in the SSB-RO cyclic mapping described in the present application; an SSB-RO cyclic mapping described in the present application includes (M+K) ROs, and M and K are both positive integers.

[0495] As an embodiment, the first PRACH opportunity set includes the last M PRACH opportunities in the SSB-RO cyclic mapping described in the present application; the second PRACH opportunity set includes the first K PRACH opportunities in the SSB-RO cyclic mapping described in the present application; an SSB-RO cyclic mapping described in the present application includes (M+K) ROs, and M and K are both positive integers.

[0496] As a sub-embodiment of the above two embodiments, M and K are not equal.

[0497] As a sub-embodiment of the above two embodiments, at least one of M and K is predefined.

[0498] As a sub-embodiment of the above two embodiments, at least one of M and K is RRC configured.

[0499] As a sub-embodiment of the above two embodiments, the values ​​of M and K depend on (M+K).

[0500] Example 9

[0501] Embodiment 9 illustrates a schematic diagram of the transmission power value of the first signal according to an embodiment of the present application, as shown in the attached figure. Fig. 9 As shown in the attached Fig. 9In the embodiment, case (a) indicates that when the transmit power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the transmit power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0502] In Embodiment 9, the transmission power value of the first signal is equal to the smaller value between a first maximum power value and the first power value.

[0503] As an embodiment, the transmitting power value of the first signal is equal to the smaller value between the first maximum power value and the first power value; when the transmitting power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the transmitting power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0504] As an embodiment, the transmission power value of the first signal is equal to the smaller value between the first maximum power value and the first power value.

[0505] As an embodiment, the unit of the first maximum power value is dBm.

[0506] As an embodiment, the unit of the first maximum power value is mW.

[0507] As an embodiment, the unit of the first maximum power value is W.

[0508] As an embodiment, the first maximum power value depends on a configured maximum output power.

[0509] As an embodiment, the first maximum power value is the maximum output power configured by the first node.

[0510] As an embodiment, the first maximum power value is the maximum output power configured by the first node for a carrier.

[0511] As an embodiment, the first maximum power value is a maximum output power value configured by the UE for a given serving cell of a given carrier.

[0512] As an embodiment, the first maximum power value is for the carrier f of the serving cell c.

[0513] As an embodiment, the first maximum power value is for transmission opportunity i.

[0514] As an embodiment, the first maximum power value is related to the capability of the first node.

[0515] As an embodiment, the first maximum power value is related to the category of the first node.

[0516] As an embodiment, the first maximum power value depends on P in the 3GPP protocol CMAX .

[0517] As an embodiment, the first maximum power value is P in the 3GPP protocol CMAX .

[0518] As an embodiment, the first maximum power value is P in the 3GPP protocol CMAX,f,c (i); the c represents the cell targeted by the first signal; the f represents the carrier occupied by the first signal, and the i represents the PRACH opportunity occupied by the first signal.

[0519] As an embodiment, the first power value is equal to the sum of the target power value and the target path loss value.

[0520] As an embodiment, the target power value is a target received power value of the first signal.

[0521] As an embodiment, the target power value is provided by a higher layer.

[0522] As an embodiment, the target power value is provided by the MAC layer.

[0523] As an embodiment, the target power value is P in the 3GPP protocol. PRACH,target,f,c ; c represents the cell to which the first signal is directed; f represents the carrier occupied by the first signal.

[0524] As an embodiment, the target power value is PREAMBLE_RECEIVED_TARGET_POWER in the 3GPP protocol.

[0525] As an embodiment, when the transmit power value of the first signal depends on the first path loss offset, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset.

[0526] As an embodiment, the target path loss value is PL b,f,c ; The c represents the cell to which the first signal is directed; the f represents the carrier occupied by the first signal; and the b represents the activated uplink BWP (BandWidth Part, partial bandwidth).

[0527] As an embodiment, the path loss obtained for the downlink signal is PL b,f,c ; c represents the cell targeted by the first signal; f represents the carrier occupied by the first signal; b represents the activated uplink BWP.

[0528] As an embodiment, the path loss obtained for the downlink signal is used to determine the PL b,f,c ; c represents the cell targeted by the first signal; f represents the carrier occupied by the first signal; b represents the activated uplink BWP.

[0529] As an embodiment, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset, which means that the target path loss value is equal to the sum of the path loss obtained for the downlink signal and the first path loss offset.

[0530] As an embodiment, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset, which means that the target path loss value is equal to the difference between the path loss obtained for the downlink signal and the first path loss offset.

[0531] As an embodiment, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset, which means that the target path loss value is equal to the product of the path loss obtained for the downlink signal and the first path loss offset.

[0532] As an embodiment, when the transmission power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0533] Example 10

[0534] Embodiment 10 illustrates a schematic diagram of the relationship between the first TCI state and the first signal according to an embodiment of the present application, as shown in the attached figure. Fig.10 As shown in the attached Fig.10In the embodiment, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi co-located.

[0535] In Embodiment 10, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0536] As an embodiment, the TCI refers to: Transmission Configuration Indicator, transmission configuration indication.

[0537] As an embodiment, the SRS refers to: Sounding Reference Signal, a sounding reference signal.

[0538] As an embodiment, the first path loss offset is associated with a first TCI state.

[0539] As an embodiment, the first TCI state is a ULTCI state.

[0540] As an embodiment, the first TCI state is configured with the first path loss offset.

[0541] As an embodiment, the first TCI state is configured with the first path loss offset through RRC signaling

[0542] As an embodiment, the first TCI state is associated with at least one SRS resource (SRS resource).

[0543] As a sub-embodiment of this embodiment, only one of the two SRS resources is associated with the first path loss offset.

[0544] As an embodiment, the first TCI state is associated with an SRS resource set (SRS resourceset), and the SRS resource set includes the at least one SRS resource.

[0545] As an embodiment, the first signal and the SRS resource are quasi-co-located.

[0546] As an embodiment, the first TCI state is associated with two SRS resources, and the first signal and one of the two SRS resources are quasi-co-located.

[0547] As an embodiment, the first signal and one SRS resource among the at least one SRS resource are quasi-co-located, and the corresponding QCL type is typeD.

[0548] As an embodiment, the QCL types described in this application include typeA, typeB, typeC and typeD.

[0549] As an embodiment, the specific definitions of typeA, typeB, typeC and typeD described in this application refer to Section 5.1.5 of 3GPP TS 38.214.

[0550] As an embodiment, the first signal and the at least one SRS resource are quasi-co-located.

[0551] As an embodiment, the at least one SRS resource belongs to an SRS resource set, and the first signal and each SRS resource in the SRS resource set are quasi-co-located.

[0552] Embodiment 11

[0553] Embodiment 11 illustrates a schematic diagram of the relationship between the first TCI state and TAG according to an embodiment of the present application, as shown in the attached figure. Fig.11 As shown in the attached Fig.11 In the embodiment, the first TCI state is associated with two TAGs, which are TAG#1 and TAG#2.

[0554] In embodiment 11, the first TCI state is associated with two TAGs.

[0555] As an embodiment, the TAG refers to: Timing Advance Group.

[0556] As an embodiment, the first TCI state is associated with two SRS resources, and the two SRS resources are respectively associated with the two TAGs.

[0557] As an embodiment, the two SRS resources are respectively configured with two different tag-ids through RRC signaling.

[0558] Example 12

[0559] Embodiment 12 illustrates a schematic diagram of applying the present application in an uplink and downlink asymmetric scenario according to an embodiment of the present application, as shown in the attached figure. Fig.12 As shown in the attached Fig.12In the embodiment, the first UL link is the uplink between the terminal and the base station; the second UL link is the uplink between the terminal and the UL TRP that is far away from the base station.

[0560] As an embodiment, the base station is a base station maintaining a serving cell of the terminal.

[0561] As an embodiment, the UL TRP only receives uplink transmission.

[0562] As an embodiment, the baseband processing of the UL TRP is implemented in the base station.

[0563] As an embodiment, the base station and the UL TRP are connected via backhaul.

[0564] As an embodiment, the base station and the UL TRP are connected via a wire.

[0565] As an embodiment, the base station and the UL TRP are connected via optical fiber.

[0566] As an embodiment, the first signaling and the first signal are transmitted in the same service cell.

[0567] As an embodiment, the time-frequency resources occupied by the first signaling and the first signal belong to the same service cell.

[0568] As an embodiment, the sender of the first signaling is the base station.

[0569] As an embodiment, the recipient of the first signal is the base station or the UL TRP.

[0570] As an embodiment, the first signaling implicitly indicates a recipient of the first signaling.

[0571] As an embodiment, the first signal is transmitted on the first UL link, and the transmission power of the first signal does not depend on the first path loss offset.

[0572] As an embodiment, the first signal is transmitted on the second UL link, and the transmission power of the first signal depends on the first path loss offset.

[0573] As an embodiment, the first signal is transmitted on the second UL link, and whether the transmission power of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal indicated by the first signaling.

[0574] As an embodiment, the first signal is used to obtain uplink synchronization of the first UL link, and the transmission power of the first signal does not depend on the first path loss offset.

[0575] As an embodiment, the first signal is used to obtain uplink synchronization of the second UL link, and the transmission power of the first signal does not depend on the first path loss offset.

[0576] As an embodiment, the first signal is used to obtain uplink synchronization of the first UL link, and whether the transmission power of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal indicated by the first signaling.

[0577] Embodiment 13

[0578] Embodiment 13 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application, as shown in the attached figure. Fig.13 As shown in the attached Fig.13 In the embodiment, the processing device 1300 in the first node includes a first receiver 1301 and a first transmitter 1302.

[0579] In Embodiment 13, the first receiver 1301 receives a first information block and a first signaling, the first information block indicates a first path loss offset, and the first signaling initiates a random access process; and the first transmitter 1302 sends a first signal.

[0580] In Example 13, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates transmission parameters of the first signal, the transmission parameters of the first signal include a random access preamble index, a PRACH mask index or one of a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0581] As an embodiment, the first domain set included in the first signaling includes a first domain, and the first domain included in the first signaling indicates the random access preamble index; the transmission parameter of the first signal includes the random access preamble index indicated by the first domain; the random access preamble index indicated by the first domain is equal to the value in the first preamble index set, and the transmit power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first domain is equal to the value in the second preamble index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0582] As an embodiment, the first domain set included in the first signaling includes a second domain, and the second domain included in the first signaling indicates the PRACH mask index; the transmission parameter of the first signal includes the PRACH mask index indicated by the second domain; the PRACH mask index indicated by the second domain is equal to the value in the first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH mask index indicated by the second domain is equal to the value in the second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0583] As an embodiment, the transmission parameters of the first signal include PRACH opportunity; the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0584] As an embodiment, the transmitting power value of the first signal is equal to the smaller value between the first maximum power value and the first power value; when the transmitting power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the transmitting power value of the first signal is not dependent on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0585] As an embodiment, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0586] As an embodiment, the first TCI state is associated with two TAGs.

[0587] As an embodiment, the transmission parameters of the first signal include at least one of the random access preamble index, the PRACH mask index or the PRACH opportunity, and the first domain set included in the first signaling indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0588] As an embodiment, the first signaling indicates at least one of the random access preamble index, the PRACH mask index and the PRACH opportunity, and the first domain set included in the first signaling indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0589] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the random access preamble index indicated by the first domain set.

[0590] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH mask index indicated by the first domain set.

[0591] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH timing indicated by the first domain set.

[0592] As an embodiment, the downlink signal and the DM-RS of the first signaling are quasi-co-located.

[0593] As an embodiment, the first signaling indicates the downlink signal.

[0594] As an embodiment, the first signaling directly indicates the reference signal identifier corresponding to the downlink signal.

[0595] As an embodiment, the first signaling indirectly indicates the corresponding reference signal identifier of the downlink signal by indicating the corresponding RRC IE.

[0596] As an embodiment, the first TCI state is associated with an SRS resource set, and the SRS resource set includes the at least one SRS resource.

[0597] As an embodiment, the first signal and one SRS resource among the at least one SRS resource are quasi-co-located, and the corresponding QCL type is typeD.

[0598] As an embodiment, the first node is user equipment.

[0599] As an embodiment, the first node is a relay node device.

[0600] As an embodiment, the first receiver 1301 includes at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} in Example 4.

[0601] As an embodiment, the first transmitter 1302 includes at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} in Embodiment 4.

[0602] Embodiment 14

[0603] Embodiment 14 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application, as shown in the attached figure. Fig.14 As shown in the attached Fig.14 In the embodiment, the processing device 1400 in the second node includes a second transmitter 1401 and a second receiver 1402.

[0604] In Embodiment 14, the second transmitter 1401 sends a first information block and a first signaling, the first information block indicates a first path loss offset, and the first signaling initiates a random access process; and the second receiver 1402 receives a first signal.

[0605] In Example 14, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates transmission parameters of the first signal, the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

[0606] As an embodiment, the first domain set included in the first signaling includes a first domain, and the first domain included in the first signaling indicates the random access preamble index; the transmission parameter of the first signal includes the random access preamble index indicated by the first domain; the random access preamble index indicated by the first domain is equal to the value in the first preamble index set, and the transmit power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first domain is equal to the value in the second preamble index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0607] As an embodiment, the first domain set included in the first signaling includes a second domain, and the second domain included in the first signaling indicates the PRACH mask index; the transmission parameter of the first signal includes the PRACH mask index indicated by the second domain; the PRACH mask index indicated by the second domain is equal to the value in the first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH mask index indicated by the second domain is equal to the value in the second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0608] As an embodiment, the transmission parameters of the first signal include PRACH opportunity; the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH opportunity indicated by the first domain set included in the first signaling belongs to a second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

[0609] As an embodiment, the transmitting power value of the first signal is equal to the smaller value between the first maximum power value and the first power value; when the transmitting power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the transmitting power value of the first signal is not dependent on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0610] As an embodiment, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0611] As an embodiment, the first TCI state is associated with two TAGs.

[0612] As an embodiment, the transmission parameters of the first signal include at least one of the random access preamble index, the PRACH mask index or the PRACH opportunity, and the first domain set included in the first signaling indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0613] As an embodiment, the first signaling indicates at least one of the random access preamble index, the PRACH mask index and the PRACH opportunity, and the first domain set included in the first signaling indicates one of the random access preamble index, the PRACH mask index or the PRACH opportunity.

[0614] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the random access preamble index indicated by the first domain set.

[0615] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH mask index indicated by the first domain set.

[0616] As an embodiment, whether the transmit power value of the first signal depends on the first path loss offset depends on the PRACH timing indicated by the first domain set.

[0617] As an embodiment, the downlink signal and the DM-RS of the first signaling are quasi-co-located.

[0618] As an embodiment, the first signaling indicates the downlink signal.

[0619] As an embodiment, the first signaling directly indicates the reference signal identifier corresponding to the downlink signal.

[0620] As an embodiment, the first signaling indirectly indicates the corresponding reference signal identifier of the downlink signal by indicating the corresponding RRC IE.

[0621] As an embodiment, the first TCI state is associated with an SRS resource set, and the SRS resource set includes the at least one SRS resource.

[0622] As an embodiment, the first signal and one SRS resource among the at least one SRS resource are quasi-co-located, and the corresponding QCL type is typeD.

[0623] As an embodiment, the second node is a base station device.

[0624] As an embodiment, the second node is user equipment.

[0625] As an embodiment, the second node is a TRP.

[0626] As an embodiment, the second transmitter 1401 includes at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} in Embodiment 4.

[0627] As an embodiment, the second receiver 1402 includes at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the controller / processor 475, and the memory 476} in Embodiment 4.

[0628] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, transportation tools, vehicles, RSUs, wireless sensors, Internet cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSU, drones, test equipment, such as wireless communication equipment such as transceivers or signaling testers that simulate some functions of base stations.

[0629] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node used for random access of wireless communication, characterized in that: include: A first receiver receives a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process; A first transmitter sends a first signal; Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

2. The first node according to claim 1, characterized in that: The first domain set included in the first signaling includes a first domain, and the first domain included in the first signaling indicates the random access preamble index; the transmission parameter of the first signal includes the random access preamble index indicated by the first domain; the random access preamble index indicated by the first domain is equal to a value in the first preamble index set, and the transmit power value of the first signal depends on the first path loss offset; or, the random access preamble index indicated by the first domain is equal to a value in the second preamble index set, and the transmit power value of the first signal does not depend on the first path loss offset.

3. The first node according to claim 1, characterized in that: The first domain set included in the first signaling includes a second domain, and the second domain included in the first signaling indicates the PRACH mask index; the transmission parameter of the first signal includes the PRACH mask index indicated by the second domain; the PRACH mask index indicated by the second domain is equal to the value in the first PRACH mask index set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH mask index indicated by the second domain is equal to the value in the second PRACH mask index set, and the transmit power value of the first signal does not depend on the first path loss offset.

4. The first node according to claim 1, characterized in that: The transmission parameters of the first signal include PRACH opportunities; the PRACH opportunities indicated by the first domain set included in the first signaling belong to a first PRACH opportunity set, and the transmit power value of the first signal depends on the first path loss offset; or, the PRACH opportunities indicated by the first domain set included in the first signaling belong to a second PRACH opportunity set, and the transmit power value of the first signal does not depend on the first path loss offset.

5. The first node according to any one of claims 1 to 4, characterized in that: The transmit power value of the first signal is equal to the smaller value between the first maximum power value and the first power value; when the transmit power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the transmit power value of the first signal is independent of the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

6. The first node according to any one of claims 1 to 5, characterized in that: The first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi co-located.

7. The first node according to claim 6, characterized in that: The first TCI state is associated with two TAGs.

8. A second node used for random access of wireless communication, characterized in that: include: A second transmitter sends a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process; A second receiver receives the first signal; Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

9. A method for a first node used for random access of wireless communication, characterized in that: include: Receiving a first information block and a first signaling, wherein the first information block indicates a first path loss offset, and the first signaling initiates a random access process; Sending a first signal; Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

10. A method for a second node used for random access of wireless communication, characterized in that: include: Sending a first information block and a first signaling, where the first information block indicates a first path loss offset, and the first signaling initiates a random access process; receiving a first signal; Among them, the random access process initiated by the first signaling includes the first signal; the first signaling includes a first domain set, the first domain set indicates the transmission parameters of the first signal, and the transmission parameters of the first signal include one of a random access preamble index, a PRACH mask index or a PRACH timing; the transmission power value of the first signal depends on the path loss obtained for the downlink signal; whether the transmission power value of the first signal depends on the first path loss offset depends on the transmission parameters of the first signal.

Images