CN113543357A

CN113543357A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113543357A
Application number: CN202010316994.3A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-10-22
Anticipated expiration: 2040-04-21
Also published as: CN113543357B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The node firstly receives first information; subsequently receiving a first signaling; and transmitting a first signal in a first set of time-frequency resources; the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; a first field in the first signaling is used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; whether the first reference signal resource is used to determine whether a spatial transmission parameter of the first signal relates to whether the first set of time-frequency resources overlaps with the first set of time units. The method and the device optimize the determination of the sending space parameters of the two-step random access downlink and uplink data transmission so as to improve the spectrum efficiency.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission method of a PUSCH (Physical Uplink Shared Channel) under Release 17 in wireless communication.

Background

Random Access (RA) is a common method in cellular communication, and uplink synchronization and uplink transmission resources can be obtained through a 4-Step Random Access (4-Step RA) procedure.

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

In order to be able to adapt to various application scenarios and meet different requirements, research projects of Non-orthogonal Multiple Access (NoMA) under NR are also passed on 3GPP RAN #76 universal meeting, the research projects begin at Release16 version, and WI is started to standardize related technologies after SI is over. As a bearing NoMA research project, the 3GPP RAN #82 also passed WI of 2-step random access (2-step RACH) under NR over the second whole meeting.

Disclosure of Invention

The NR Release-16 system introduces a 2-Step RA (Random Access) procedure to meet the requirement of fast Access. MsgA (Message a) of the 2-step Random Access procedure includes a Random Access preamble and a PUSCH payload, where the Random Access preamble (preamble) is transmitted on one RO (Random Access Channel (RACH) opportunity), the Physical Uplink Shared Channel payload is transmitted on one PO (Physical Uplink Shared Channel (PUSCH) opportunity), one RO occupies one PRO (Physical Random Access Channel (PRACH) opportunity), and one PO occupies one PRU (PUSCH Resource Unit). The transmission resources for the random access preamble and the physical uplink shared channel payload in message a are configured independently of each other, and some resource collisions may cause part of the RO and part of the PO to be invalid. Meanwhile, the association mapping between the random access preamble and the PO in the message a is determined in an implicit manner, so that part of the POs has no corresponding random access preamble association. Furthermore, from the perspective of the base station, those POs not associated with the random access preamble can be used for scheduling the PUSCH to improve the spectrum efficiency, and the base station may also determine whether to schedule resources of the PO for transmission of the PUSCH dedicated to the UE (User Equipment) according to the number of users actually initiating the 2-step random access. In the above scenario, when there is overlap between the scheduled PUSCH and the PRU, the spatial transmission parameter and the transmission power value of the scheduled PUSCH need to be redesigned.

In view of the above problems, the present application discloses a method how to select spatial transmission parameters and transmission power when resources reserved for random access and scheduled PUSCH resources overlap. It should be noted that, without conflict, the embodiments and features in the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Further, although the present application was originally directed to the Uu air interface, the present application can also be used for the PC5 interface. Further, although the present application was originally directed to multi-antenna communication, the present application can also be applied to single-antenna communication. Further, although the original intention of the present application is directed to the terminal and base station scenario, the present application is also applicable to the V2X scenario, the terminal and relay, and the relay and base station communication scenario, and achieves similar technical effects in the terminal and base station scenario. Furthermore, adopting a unified solution for different scenarios (including but not limited to V2X scenario and terminal to base station communication scenario) also helps to reduce hardware complexity and cost.

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

receiving first information, the first information being non-unicast;

receiving a first signaling;

transmitting a first signal in a first set of time-frequency resources;

wherein the first information is used to indicate a first set of time units reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, one technical feature of the above method is that: when the time domain resource occupied by the scheduled PUSCH conflicts with the time domain resource allocated to the message A, namely the first time frequency resource set and the first time unit set are overlapped, the space transmission parameter adopted by the part of the first signal overlapped with the time domain resource occupied by the message A follows the space transmission parameter adopted by the message A; and further ensuring that the base station side can receive the part of the first signal, which is overlapped with the message A, namely the first sub-signal by adopting the receiving beam for receiving the message A.

According to an aspect of the application, the first field in the first signaling indicates a second reference signal resource for which measurements are used to determine a first path loss, the second field in the first signaling indicates a first power offset; when the first set of time-frequency resources does not overlap the first set of time units, a transmit power value of the first signal is related to both the first path loss and the first power offset; when the first set of time-frequency resources overlaps the first subset of time units, a transmit power value of the first sub-signal is independent of both the first path loss and the first power offset.

As an embodiment, one technical feature of the above method is that: when the first set of time-frequency resources overlaps with the first subset of time units, a field of the first signaling for indicating TPC (Transmission Power Control), that is, the second field, will not be used for indicating a Transmission Power value of the overlapping portion; and further ensuring that the sending of the first sub-signal does not interfere with other random access related signals transmitted in the first time unit subset.

According to an aspect of the application, the first reference signal resource is used for determining spatial transmission parameters of a second sub-signal when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units; the second sub-signal is a portion of the first signal outside of the first set of time units.

As an embodiment, one technical feature of the above method is that: when the first set of time-frequency resources overlaps with the first set of time units, the non-overlapping part of the first set of time-frequency resources still follows the indication of the first domain in the first signaling, and the first reference signal resource is adopted to determine the spatial transmission parameter of the second sub-signal, so as to reduce the influence caused by overlapping.

According to an aspect of the application, the transmission power value of the second sub-signal is related to both the first path loss and the first power offset.

As an embodiment, one technical feature of the above method is that: the part of the first set of time-frequency resources which is not overlapped with the first set of time-frequency resources still follows the TPC indicated by the second domain in the first signaling, so as to reduce the influence caused by overlapping.

According to an aspect of the present application, the transmission power value of the first sub-signal is equal to a transmission power value assumed by the first node to transmit the message a in the time-frequency resource occupied by the first sub-signal.

As an embodiment, one technical feature of the above method is that: and the part of the first time-frequency resource set, which is overlapped with the first time-frequency resource set, follows the transmission mode of the message A so as to reduce the interference to the message A transmission of other users.

According to an aspect of the application, the first field in the first signaling indicates the first reference signal resource from Q candidate reference signal resources, Q being a positive integer greater than 1; the target signal resource is non-quasi co-located with any of the Q candidate reference signal resources.

As an embodiment, one technical feature of the above method is that: the above method only acts on all SRS (Sounding Reference Signal) resources that can be dynamically indicated by DCI (Downlink Control Information) and are configured by the first node, that is, Q candidate Reference Signal resources are used when the target Signal resource is a non-QCL (Quasi-co-located); the reason for the above method is that, if at least one of all SRS resources that can be dynamically indicated by DCI configured by the first node exists and a target signal resource is QCL, the base station can indicate spatial transmission parameters of the first signal to be the target signal resource QCL among the SRS resources configured by the first node in a scheduling manner, and further avoid a problem of inconsistency of spatial transmission parameters of PUSCH and MsgA in a related manner.

According to an aspect of the application, the target signal resource is used for determining spatial transmission parameters of the first signal when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units, the first field being used for checking for the first signaling.

As an embodiment, one technical feature of the above method is that: reducing a False Alarm (False Alarm) rate of the first signaling by setting the first field in the first signaling to a fixed value to improve transmission robustness of the first signaling when the first set of time-frequency resources overlaps a first subset of time units in the first set of time units.

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

transmitting first information, the first information being non-unicast;

sending a first signaling;

receiving a first signal in a first set of time-frequency resources;

According to an aspect of the present application, the transmission power value of the first sub-signal is equal to a transmission power value assumed by a sender of the first signal to transmit the message a in the time-frequency resource occupied by the first sub-signal.

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

a first receiver to receive first information, the first information being non-unicast;

a second receiver receiving the first signaling;

a first transmitter to transmit a first signal in a first set of time-frequency resources;

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

a second transmitter to transmit first information, the first information being non-unicast;

a third transmitter for transmitting the first signaling;

a third receiver that receives the first signal in the first set of time-frequency resources;

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

when the time domain resource occupied by the scheduled PUSCH conflicts with the time domain resource allocated to the message a, that is, when the first set of time frequency resources overlaps with the first set of time units, the spatial transmission parameter adopted by the portion of the first signal overlapping with the time domain resource occupied by the message a follows the spatial transmission parameter adopted by the message a; further ensuring that the base station side can adopt a receiving beam for receiving the message A to receive the part of the first signal, which is overlapped with the message A, namely the first sub-signal;

when the first set of time-frequency resources overlaps with the first subset of time units, the field in the first signaling for indicating TPC, i.e. the second field, will not be used for indicating the transmission power value of the overlapping portion; further ensuring that the sending of the first sub-signal does not interfere with other random access related signals transmitted in the first time unit subset; and the non-overlapped part in the first time-frequency resource set still follows the indication of the first domain in the first signaling, and the first reference signal resource is adopted to determine the spatial transmission parameter of the second sub-signal so as to reduce the influence caused by overlapping;

when the first set of time-frequency resources overlaps the first set of time units, the non-overlapping portion of the first set of time-frequency resources still follows the indication of the first domain in the first signaling, and the first reference signal resource is used to determine the spatial transmission parameter of the second sub-signal, so as to reduce the influence caused by the overlapping; while the part of the first set of time-frequency resources that is not overlapped with the first set of time-frequency resources still follows the TPC indicated by the second domain in the first signaling, so as to reduce the influence caused by overlapping;

the above method only works on all SRS resources capable of being dynamically indicated by DCI configured by the first node, that is, Q candidate reference signal resources are used when the target signal resource is non-QCL; the reason for the above method is that, if at least one of all SRS resources that can be dynamically indicated by DCI configured by the first node exists and a target signal resource is QCL, the base station can indicate spatial transmission parameters of the first signal to be one of the SRS resources configured by the first node and the target signal resource QCL in a scheduling manner, and further avoid a problem of inconsistency of spatial transmission parameters of PUSCH and MsgA in a related manner;

when the first set of time-frequency resources overlaps with a first subset of time units in the first set of time units, the first domain in the first signaling is set to a fixed value to improve the transmission robustness of the first signaling, thereby reducing the false alarm rate of the first signaling.

Drawings

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

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

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

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

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

FIG. 5 shows a flow diagram of first information according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a first set of time units according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a first subset of time units, according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a first sub-signal according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a first sub-signal and a second sub-signal according to an embodiment of the present application;

fig. 10 shows a schematic diagram of a target signal resource and a first reference signal resource according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of a first domain and a second domain according to an embodiment of the present application;

fig. 12 shows a schematic diagram of Q candidate reference signal resources according to an embodiment of the present application;

FIG. 13 shows a block diagram of a processing device in a first node according to an embodiment of the application;

fig. 14 shows a block diagram of a processing device in a second node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application first receives first information in step 101, where the first information is non-unicast; subsequently receiving a first signaling in step 102; and transmits a first signal in a first set of time-frequency resources in step 103.

In embodiment 1, the first information is used to indicate a first set of time units, which is reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As one embodiment, the first information is Cell-Specific.

As an embodiment, the first information is Group-Specific (Group-Specific) for the user equipment Group.

As a sub-embodiment of this embodiment, the group of user equipments includes the first node.

As an embodiment, the first information is transmitted through RRC (Radio resource Control) signaling.

As an embodiment, the first information includes one or more fields of MsgA-PUSCH-Config in TS (Technical Specification) 38.331.

As an embodiment, the first information includes MsgA-PUSCH-Resource in TS 38.331.

For one embodiment, BWP-UplinkCommon in TS 38.331 is used to transmit the first information.

As an embodiment, UplinkConfigCommon in TS 38.331 is used to transmit the first information.

As an example, ServingCellConfigCommon in TS 38.331 is used to transmit the first information.

As one embodiment, the first set of time cells includes K1 time cells of a first type, the K1 being a positive integer greater than 1.

As a sub-embodiment of this embodiment, the first information is used to indicate the location of any one of the K1 first-class time units in the time domain.

As a sub-embodiment of this embodiment, the first information is used to indicate a position of an OFDM (Orthogonal Frequency Division Multiplexing) symbol occupied by any one of the K1 first-type time units in a time domain.

As a sub-embodiment of this embodiment, any one of the K1 time units of the first type is a time Slot (Slot).

As a sub-embodiment of this embodiment, any one of the K1 first-type time units is a minislot (Mini-Slot).

As a Sub-embodiment of this embodiment, any one of the K1 time units of the first type is a Sub-Slot (Sub-Slot).

As a sub-embodiment of this embodiment, any one of the K1 time units of the first type is a Span (Span).

As a sub-embodiment of this embodiment, any time unit of the K1 first type time units occupies T1 multicarrier symbols, the T1 is a positive integer, and the T1 remains unchanged in the K1 first type time units.

As an embodiment, the meaning that the first set of time units is reserved for random access includes: the time units included in the first set of time units are used for transmitting a PRACH (Physical Random Access Channel).

As an embodiment, the meaning that the first set of time units is reserved for random access includes: the time units included in the first set of time units are used for transmitting a random access Preamble (Preamble sequence).

As an embodiment, the meaning that the first set of time units is reserved for random access includes: the time cells comprised by the first set of time cells are used for transmitting MsgA (message a).

As an embodiment, the target signal resource is an SSB (SS/PBCH Block, synchronization signal/physical broadcast signal Block).

As an embodiment, the target signal resource is an SSB resource.

As an embodiment, the target Signal resource is a CSI-RS (Channel State Information Reference Signal) resource.

As one embodiment, the target signal resource corresponds to a Spatial Tx Parameters Group (Spatial Tx Parameters Group), and the Spatial transmit Parameters Group includes one or more Spatial transmit Parameters.

As an embodiment, the target signal resource corresponds to a Spatial Rx Parameters set (Spatial Rx Parameters), and the Spatial Rx Parameters set includes one or more Spatial Rx Parameters.

As an example, the meaning that said first set of time units is associated to a target signal resource in said sentence comprises: the first node transmits in the first set of time units using a target antenna port, the target signal resource being used to determine the target antenna port.

As an example, the meaning that said first set of time units is associated to a target signal resource in said sentence comprises: the spatial reception of the target signal resource is used to determine a set of spatial transmission parameters to be employed by the wireless signal transmitted by the first node in the first set of time units, the set of spatial transmission parameters including one or more spatial transmission parameters.

As an example, the meaning that said first set of time units is associated to a target signal resource in said sentence comprises: the wireless signals received in the target signal resource and the wireless signals transmitted by the first node in the first set of time units are Quasi Co-located (QCL).

As an example, the meaning that two wireless signals are QCLs in this application includes: the first node is capable of inferring, from all or part of a large-scale characteristic of one of the two wireless signals, all or part of a large-scale characteristic of the other of the two wireless signals, the large-scale characteristic comprising: delay Spread (Delay Spread), Doppler Spread (Doppler Spread), Doppler Shift (Doppler Shift), Path Loss (Path Loss), and Average Gain (Average Gain).

As an example, the QCL relationship referred to herein is QCL-TypeA.

As an example, the QCL relationship referred to herein is QCL-TypeB.

As an example, the QCL relationship referred to herein is QCL-TypeC.

As an example, the QCL relationship referred to herein is QCL-TypeD.

As one embodiment, the first signaling is DCI.

As an embodiment, a Physical layer Channel carrying the first signaling is a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first signaling is an Uplink Grant (Uplink Grant).

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

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

As an embodiment, the first signaling is used to indicate a time domain resource occupied by the first set of time and frequency resources.

As an embodiment, the first signaling is used to indicate frequency domain resources occupied by the first set of time-frequency resources.

As an embodiment, the first signaling is used to indicate a Modulation and Coding Scheme (MCS) adopted by the first signal.

As an embodiment, the first Field (Field) included in the first signaling includes a TCI (Transmission Configuration Indicator) Field in the first signaling.

As an embodiment, the first field included in the first signaling includes an SRI (Sounding Reference Signal Resource Indicator) field.

As an embodiment, the physical layer channel carrying the first signal is a PUSCH.

As an embodiment, the transmission Channel carrying the first signal is UL-SCH (Uplink Shared Channel).

As an embodiment, the first reference signal resource is an SRS resource.

As one embodiment, the first reference signal resource is a CSI-RS resource.

For one embodiment, the first reference signal resource is an SSB resource.

As an embodiment, the above sentence where the first field in the first signaling is used to determine the meaning of the first reference signal resource includes: the first field in the first signaling is used to instruct the first node to transmit the first signal using the antenna port used by the first reference signal resource.

As an embodiment, the above sentence where the first field in the first signaling is used to determine the meaning of the first reference signal resource includes: the first field in the first signaling is used to instruct the first node to transmit the first signal with the same set of spatial transmission parameters as the first reference signal resource.

As an embodiment, the above sentence where the first field in the first signaling is used to determine the meaning of the first reference signal resource includes: the first field in the first signaling is used to indicate that the first node needs to ensure that the first reference signal resources and the first signal are QCL.

As an example, the above sentence "the target signal resource and the first reference signal resource are non-co-located" means including: the first node is unable to infer all or part of a large-scale characteristic of a wireless signal transmitted on the first reference signal resource from all or part of a large-scale characteristic of a wireless signal transmitted on the target signal resource, the large-scale characteristic comprising: one or more of delay spread, doppler shift, path loss, average gain.

As an example, the above sentence "the target signal resource and the first reference signal resource are non-co-located" means including: the first node is unable to infer all or part of a large-scale characteristic of a wireless signal transmitted on the target signal resource from all or part of a large-scale characteristic of a wireless signal transmitted on the first reference signal resource, the large-scale characteristic comprising: one or more of delay spread, doppler shift, path loss, average gain.

As an embodiment, the above sentence, the meaning that the first set of time-frequency resources and the first set of time units do not overlap includes: and one OFDM symbol does not belong to the time domain resource occupied by the first time-frequency resource set and the time domain resource occupied by the first time unit set at the same time.

As an embodiment, the above sentence, the meaning that the first set of time-frequency resources and the first set of time units do not overlap includes: and the time domain resources occupied by the first time frequency resource set and the time domain resources occupied by the first time unit set are orthogonal.

As an embodiment, the above sentence, the meaning that the first set of time-frequency resources and the first set of time units do not overlap includes: the Time domain resource occupied by the first Time frequency resource set and the Time domain resource occupied by the first Time unit set are TDM (Time Division Multiplexing).

As an example, the above sentence, meaning that the first reference signal resource is used for determining the spatial transmission parameter of the first signal includes: and the first node transmits the first signal by adopting the antenna port adopted by the first reference signal resource.

As an example, the above sentence, meaning that the first reference signal resource is used for determining the spatial transmission parameter of the first signal includes: and the first node transmits the first signal by adopting the same space transmission parameter as that adopted by the first reference signal resource.

As an example, the above sentence, the meaning that the first set of time-frequency resources overlaps with the first subset of time units in the first set of time units includes: all OFDM symbols occupied by the first time unit subset in the time domain belong to the time domain resources occupied by the first time-frequency resource set.

As an example, the above sentence, the meaning that the first set of time-frequency resources overlaps with the first subset of time units in the first set of time units includes: at least one OFDM symbol in the OFDM symbols occupied by the first time-frequency resource set does not belong to the time-domain resources occupied by the first time unit subset.

As an embodiment, the meaning of the sentence above that the target signal resource is used for determining the spatial transmission parameter of the first sub-signal includes: spatial reception parameters on the target signal resources are used to determine spatial transmission parameters of the first sub-signal.

As an embodiment, the meaning of the sentence above that the target signal resource is used for determining the spatial transmission parameter of the first sub-signal includes: the wireless signals received on the target signal resource and the first sub-signals are QCL.

As an embodiment, the meaning of the sentence above that the target signal resource is used for determining the spatial transmission parameter of the first sub-signal includes: a receive beam of a wireless signal received on the target signal resource is used to determine a transmit beam of the first sub-signal.

As an embodiment, a first block of bits is used for generating the first signal, and a part of the bits in the first block of bits is used for generating the first sub-signal.

As an embodiment, the first sub-signal is a partial modulation symbol in one PUSCH.

As an embodiment, the first sub-signal is a portion of the modulation symbols comprised by the first signal in the first subset of time units.

As one embodiment, the first set of time units includes K1 time units of a first type, the K1 is a positive integer greater than 1, the first subset of time units occupies one time unit of the K1 time units of the first type.

As an embodiment, the first time unit set includes K1 time units of a first type, the K1 is a positive integer greater than 1, and the first time unit subset occupies a portion of all OFDM symbols included in one time unit of the K1 time units of the first type.

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

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

Example 2

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

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

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

As an embodiment, the UE201 is a terminal supporting Massive MIMO (large-scale multiple input multiple output).

As an embodiment, the UE201 supports 2-step random access.

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

As an embodiment, the gNB203 supports Massive MIMO.

As an embodiment, the gNB203 supports 2-step random access.

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

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

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

As an embodiment, the PDCP304 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.

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

As an embodiment, the first information in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first information in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the first signal in this application is generated in the RRC 306.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY 351.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: receiving first information, the first information being non-unicast; receiving a first signaling; and transmitting a first signal in a first set of time-frequency resources; the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first information, the first information being non-unicast; receiving a first signaling; and transmitting a first signal in a first set of time-frequency resources; the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting first information, the first information being non-unicast; sending a first signaling; and receiving a first signal in a first set of time-frequency resources; the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting first information, the first information being non-unicast; sending a first signaling; and receiving a first signal in a first set of time-frequency resources; the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

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

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

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

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

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

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive first information that is non-unicast; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send first information, the first information being non-unicast.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive first signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send first signaling.

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

Example 5

Embodiment 5 illustrates a flow chart of the first information, as shown in fig. 5. In FIG. 5, a first node U1 communicates with a second node N2 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U1The first information is received in step S10, the first signaling is received in step S11, and the first signal is transmitted in the first set of time-frequency resources in step S12.

For theSecond node N2First information is transmitted in step S20, first signaling is transmitted in step S21, and a first signal is received in a first set of time-frequency resources in step S22.

In embodiment 5, the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, the first field in the first signaling indicates a second reference signal resource for which measurements are used to determine a first path loss, the second field in the first signaling indicates a first power offset; when the first set of time-frequency resources does not overlap the first set of time units, a transmit power value of the first signal is related to both the first path loss and the first power offset; when the first set of time-frequency resources overlaps the first subset of time units, a transmit power value of the first sub-signal is independent of both the first path loss and the first power offset.

As a sub-embodiment of this embodiment, the second reference signal resource is a CSI-RS resource.

As a sub-embodiment of this embodiment, the second reference signal resource is an SSB resource.

As a sub-embodiment of this embodiment, the first path loss is a path loss between the first node U1 to the second node in this application.

As a sub-embodiment of this embodiment, the second field is a TPC (Transmission Power Control) Command (Command) in the first signaling.

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

As a sub-embodiment of this embodiment, the first power offset value has a unit of milliwatts.

As a sub-embodiment of this embodiment, the unit of the first power offset value is decibels.

As a sub-embodiment of this embodiment, the above sentence that the transmission power value of the first signal is related to both the first path loss and the first power offset includes: the transmission power value of the first signal is the smaller of a first power value and a second power value, and the second power value is linearly related to both the first path loss and the first power offset.

As the seedAs an additional example of this embodiment, the first power value is P in TS 38.213_CMAX,f,c(i)。

As an example of this subsidiary embodiment, said P_CMAX,f,c(i) Is the maximum output power configured by the first node U1 at carrier f serving cell c and at PUSCH transmission time i in accordance with TS 38.101.

As an additional embodiment of this sub-embodiment, the second power value is determined by the following formula:

wherein the first path loss is PL_b,f,c(q_d) The first power offset is f_b,f,c(i, l), otherwise described in section 7.1.1 of TS 38.213; subscript b identifies a BWP (Bandwidth Part, carrier Part) where the first signal is located, subscript f identifies a carrier where the first signal is located, and subscript c identifies a serving cell where the first signal is located.

As an example of this subsidiary embodiment, said α_b,f,c(j) Is configured through higher layer signaling.

As an example of this subsidiary embodiment, said α_b,f,c(j) Is a number between 0 and 1.

As a sub-embodiment of this embodiment, the above sentence that the transmission power value of the first sub-signal is independent of both the first path loss and the first power offset includes: neither the first path loss nor the first power offset is used to determine the transmit power value of the first sub-signal.

As an embodiment, when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units, the first reference signal resource is used to determine spatial transmission parameters of a second sub-signal; the second sub-signal is a portion of the first signal outside of the first set of time units.

As a sub-embodiment of this embodiment, the first signal comprises the first sub-signal and the second sub-signal.

As a sub-embodiment of this embodiment, the first sub-signal and the second sub-signal constitute the first signal.

As a sub-embodiment of this embodiment, the meaning that the first reference signal resource is used to determine the spatial transmission parameter of the second sub-signal in the above sentence includes: the first node U1 transmits the second sub-signal using the antenna port used by the first reference signal resource.

As a sub-embodiment of this embodiment, the meaning that the first reference signal resource is used to determine the spatial transmission parameter of the second sub-signal in the above sentence includes: the first node U1 transmits the second sub-signal using the same spatial transmission parameters as used for the first reference signal resource.

As a sub-embodiment of this embodiment, when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units, the target signal resource is used to determine spatial transmission parameters of a first sub-signal, and the first reference signal resource is used to determine spatial transmission parameters of the second sub-signal.

As a sub-embodiment of this embodiment, the first signal is generated by one TB (Transmission Block).

As a sub-embodiment of this embodiment, the first signal adopts a HARQ (Hybrid Automatic Repeat reQuest) process number.

As an embodiment, the transmission power value of the second sub-signal is related to both the first path loss and the first power offset.

As a sub-embodiment of this embodiment, the above sentence that the transmission power value of the second sub-signal is related to both the first path loss and the first power offset includes: the transmission power value of the second sub-signal is the smaller of a first power value and a second power value, and the second power value is linearly related to both the first path loss and the first power offset.

As an additional embodiment of this sub-embodiment, the first power value is P in TS 38.213_CMAX,f,c(i)。

wherein the first path loss is PL_b,f,c(q_d) The first power offset is f_b,f,c(i, l), otherwise see section 7.1.1 of TS 38.213.

As a sub-embodiment of this embodiment, when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units, the transmit power value of the second sub-signal in the first signal follows the TPC command indicated by the first signaling.

As an embodiment, the transmission power value of the first sub-signal is equal to the transmission power value assumed by the first node U1 to transmit the message a in the time-frequency resource occupied by the first sub-signal.

As a sub-embodiment of this embodiment, a transmission power value used for transmitting the message a in the time-frequency resource occupied by the first sub-signal is equal to the target power value.

As an additional embodiment of this sub-embodiment, the unit of the target power value is dBm.

As an additional example of this sub-embodiment, the target power value is in units of milliwatts.

As an additional embodiment of this sub-embodiment, the target power value is equal to a smaller value of the third power value and the fourth power value.

As an example of this subsidiary embodiment, said third power value is P in TS 38.213_CMAX,f,c(i)。

As an example of this subsidiary embodiment, said fourth power value is P in TS 38.213_{PRACH,target,f,c}(i) And PL_b,f,cAnd, said P_{PRACH,target,f,c}(i) The number of transmissions of the message A supposed to be sent in the time domain resource occupied by the first sub-signal with the first node U1, the PL_b,f,cIs the first path loss in this application.

As an embodiment, the first field in the first signaling indicates the first reference signal resource from Q candidate reference signal resources, Q being a positive integer greater than 1; the target signal resource is non-quasi co-located with any of the Q candidate reference signal resources.

As a sub-embodiment of this embodiment, the Q candidate reference signal resources are Q CSI-RS resources, respectively.

As a sub-embodiment of this embodiment, the Q candidate reference signal resources are Q SRS resources, respectively.

As a sub-embodiment of this embodiment, at least one of the Q candidate reference signal resources including the candidate reference signal resource is a CSI-RS resource.

As a sub-embodiment of this embodiment, at least one of the Q candidate reference signal resources including the candidate reference signal resource is an SRS resource.

As a sub-embodiment of this embodiment, at least one of the Q candidate reference signal resources including the candidate reference signal resource is an SSB.

As a sub-embodiment of this embodiment, the meaning that the target signal resource and any candidate reference signal resource of the Q candidate reference signal resources are non-co-located in the above sentence includes: and the downlink reference signal resource of the target signal resource QCL and the downlink reference signal resource of any candidate reference signal resource QCL in the Q candidate reference signal resources are not QCL.

As a sub-embodiment of this embodiment, the meaning that the target signal resource and any candidate reference signal resource of the Q candidate reference signal resources are non-co-located in the above sentence includes: and the uplink reference signal resource of the target signal resource QCL and the downlink reference signal resource of any candidate reference signal resource QCL in the Q candidate reference signal resources do not QCL.

As a sub-embodiment of this embodiment, the meaning that the target signal resource and any candidate reference signal resource of the Q candidate reference signal resources are non-co-located in the above sentence includes: the target signal resource and a downlink reference signal resource of any candidate reference signal resource QCL of the Q candidate reference signal resources do not QCL.

As an embodiment, when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units, the target signal resource is used for determining spatial transmission parameters of the first signal, and the first field is used for checking for the first signaling.

As a sub-embodiment of this embodiment, the meaning that the target signal resource is used to determine the spatial transmission parameter of the first signal in the above sentence includes: spatial reception parameters on the target signal resource are used to determine spatial transmission parameters of the first signal.

As a sub-embodiment of this embodiment, the meaning that the target signal resource is used to determine the spatial transmission parameter of the first signal in the above sentence includes: the wireless signals received on the target signal resource and the first signals are QCL.

As a sub-embodiment of this embodiment, the meaning that the target signal resource is used to determine the spatial transmission parameter of the first signal in the above sentence includes: a receive beam of wireless signals received on the target signal resource is used to determine a transmit beam of the first signal.

As a sub-embodiment of this embodiment, the first field is used for a CRC (Cyclic Redundancy Check) Check for the first signaling.

As a sub-embodiment of this embodiment, the meaning that the first field is used for verification for the first signaling in the above sentence includes: the first field is equal to a fixed value, and when the first node U1 detects that the first field in the first signaling is not equal to the fixed value, the first node U1 considers the first signaling as not being correctly received.

As a sub-embodiment of this embodiment, the meaning that the first field is used for verification for the first signaling in the above sentence includes: the first field is equal to a fixed value, and when the first node U1 detects that the first field in the first signaling is equal to the fixed value, the first node U1 considers the first signaling as correctly received.

Example 6

Embodiment 6 illustrates a schematic diagram of a first set of time units according to the present application; as shown in fig. 6. In FIG. 6, the first set of time cells includes K1 time cells of the first type, the K1 being a positive integer greater than 1.

As an embodiment, any two first type time units of the K1 first type time units occupy the same number of OFDM symbols.

As an embodiment, the K1 time units of the first type are discrete in the time domain.

As an example, the first time unit subset in this application occupies one of the K1 first-class time units.

As an embodiment, the first time unit subset in this application occupies a part of the OFDM symbol occupied by one of the K1 first type time units.

As an embodiment, the K1 time units of the first type are equally spaced apart in the time domain.

As an embodiment, the K1 time units of the first type occur periodically in the time domain.

Example 7

Embodiment 7 illustrates a schematic diagram of a first subset of time units according to the present application; as shown in fig. 7. In fig. 7, the first subset of time units; the time domain resources occupied by the first time unit subset belong to the time domain resources occupied by the first time unit set.

As an embodiment, the first subset of time units occupies a consecutive positive integer number of OFDM symbols.

For one embodiment, the first set of time units includes K1 first class time units, the first subset of time units occupies one of the K1 first class time units.

As an embodiment, the first set of time units includes K1 first type time units, and the first subset of time units occupies a portion of OFDM symbols in one of the K1 first type time units.

Example 8

Embodiment 8 illustrates a schematic diagram of a first sub-signal according to the present application; as shown in fig. 8. In fig. 8, the first sub-signal occupies all REs (Resource Elements) occupied by the first set of time-frequency resources in this application.

As an embodiment, the time domain resources occupied by the first set of time and frequency resources all belong to the first time unit subset of the present application.

As an embodiment, the time domain resources occupied by the first signal all belong to the first time unit subset.

Example 9

Embodiment 9 illustrates schematic diagrams of a first sub-signal and a second sub-signal according to the present application; as shown in fig. 9. In fig. 9, the first sub-signal occupies a part of REs (Resource Elements) in the first set of time-frequency resources in this application.

As an embodiment, the first sub-signal occupies REs belonging to the first subset of time units in the first set of time-frequency resources.

As one embodiment, the second sub-signal occupies REs in the first set of time-frequency resources and not belonging to the first subset of time units.

As an embodiment, the first sub-signal and the second sub-signal are generated by the same TB.

As an embodiment, the first sub-signal and the second sub-signal constitute the same PUSCH.

As one embodiment, the first and second sub-signals are for one transmission of PUSCH.

Example 10

Embodiment 10 illustrates a schematic diagram of a target signal resource and a first reference signal resource according to the present application; as shown in fig. 10. In fig. 10, the target signal resource and the first reference signal resource are non-co-located.

As an embodiment, the target signal resource corresponds to a transmission beam of the second node in this application.

As an embodiment, the target signal resource corresponds to a receiving beam of the first node in this application.

As an embodiment, the target signal resource corresponds to a spatial transmission parameter of the second node in the present application.

As an embodiment, the target signal resource corresponds to a spatial reception parameter of the first node in the present application.

As an embodiment, the first reference signal resource corresponds to a transmission beam of the first node in the present application.

As an embodiment, the first reference signal resource corresponds to a receive beam of a second node in the present application.

As an embodiment, the first reference signal resource corresponds to a spatial transmission parameter of a first node in the present application.

As an embodiment, the first reference signal resource corresponds to a spatial reception parameter of a second node in the present application.

As an embodiment, the beam corresponding to the wireless signal transmitted on the target reference signal resource and the beam corresponding to the wireless signal transmitted on the first reference signal resource are orthogonal in space.

Example 11

Example 11 illustrates a schematic diagram of a first domain and a second domain according to the present application; as shown in fig. 11. In fig. 11, the first signaling includes the first domain and the second domain.

As an embodiment, the first signaling further comprises other fields.

As an embodiment, the first signaling is used to indicate an RV (Redundancy Version) corresponding to the first signal.

As an embodiment, the first signaling is used to indicate a HARQ process number corresponding to the first signal.

Example 12

Embodiment 12 illustrates a schematic diagram of Q candidate reference signal resources according to the present application; as shown in fig. 12. In fig. 12, the target signal resource is non-quasi co-located with any of the Q candidate reference signal resources.

As an embodiment, Q SRS are respectively transmitted on the Q candidate reference signal resources.

As an embodiment, the Q candidate reference signal resources respectively correspond to spatial transmission parameters of Q first nodes.

As an embodiment, the Q candidate reference signal resources respectively correspond to Q transmission beams of the first node.

Example 13

Embodiment 13 is a block diagram illustrating the structure of a first node, as shown in fig. 13. In fig. 13, a first node 1300 includes a first receiver 1301, a second receiver 1302 and a first transmitter 1303.

A first receiver 1301 receiving first information, the first information being non-unicast;

a second receiver 1302 for receiving the first signaling;

a first transmitter 1303, which transmits a first signal in a first set of time-frequency resources;

in embodiment 13, the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, the transmission power value of the first sub-signal is equal to a transmission power value assumed by the first node to transmit the message a in the time-frequency resource occupied by the first sub-signal.

For one embodiment, the first receiver 1301 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller/processor 459 in embodiment 4.

For one embodiment, the second receiver 1302 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

As an embodiment, the first transmitter 1303 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 in embodiment 4.

Example 14

Embodiment 14 illustrates a block diagram of the structure in a second node, as shown in fig. 14. In fig. 14, the second node 1400 comprises a second transmitter 1401, a third transmitter 1402 and a third receiver 1403.

A second transmitter 1401 for transmitting first information, the first information being non-unicast;

a third transmitter 1402 that transmits the first signaling;

a third receiver 1403 that receives the first signal in the first set of time-frequency resources;

in embodiment 14, the first information is used to indicate a first set of time units, the first set of time units being reserved for random access; the first set of time units is associated to a target signal resource; the first signaling is used to indicate the first set of time-frequency resources; the first signaling comprises a first field, the first field in the first signaling being used to determine a first reference signal resource; the target signal resource and the first reference signal resource are non-co-located; the first reference signal resource is used to determine spatial transmission parameters of the first signal when the first set of time-frequency resources does not overlap with the first set of time units; when the first set of time-frequency resources overlaps a first subset of time units of the first set of time units, the target signal resources are used to determine spatial transmission parameters for a first sub-signal that is part of the first signal in the first subset of time units.

As an embodiment, the transmission power value of the first sub-signal is equal to a transmission power value assumed by a sender of the first signal to transmit the message a in the time-frequency resources occupied by the first sub-signal.

For one embodiment, the second transmitter 1401 comprises at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the third transmitter 1402 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the third receiver 1403 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 in embodiment 4.

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

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

Claims

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

a second receiver receiving the first signaling;

2. The first node of claim 1, wherein the first field in the first signaling indicates a second reference signal resource for which measurements are used to determine a first path loss, wherein the second field in the first signaling indicates a first power offset; when the first set of time-frequency resources does not overlap the first set of time units, a transmit power value of the first signal is related to both the first path loss and the first power offset; when the first set of time-frequency resources overlaps the first subset of time units, a transmit power value of the first sub-signal is independent of both the first path loss and the first power offset.

3. The first node according to claim 1 or 2, characterized in that the first reference signal resource is used for determining spatial transmission parameters of a second sub-signal when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units; the second sub-signal is a portion of the first signal outside of the first set of time units.

4. The first node of claim 3, wherein the transmit power value of the second sub-signal is related to both the first path loss and the first power offset.

5. The first node according to any of claims 2 to 4, wherein the transmission power value of the first sub-signal is equal to the transmission power value assumed by the first node to transmit message A in the time-frequency resources occupied by the first sub-signal.

6. The first node according to any of claims 1-5, wherein the first field in the first signaling indicates the first reference signal resource from Q candidate reference signal resources, Q being a positive integer greater than 1; the target signal resource is non-quasi co-located with any of the Q candidate reference signal resources.

7. The first node according to any of claims 2, 5 or 6, wherein the target signal resource is used for determining spatial transmission parameters of the first signal when the first set of time-frequency resources overlaps with a first subset of time units of the first set of time units, the first field being used for checking for the first signaling.

8. A second node for wireless communication, comprising: