WO2025060921A1 - Method and apparatus used in node for wireless communication - Google Patents

Abstract

Disclosed in the present application are a method and apparatus used in a node for wireless communication. The method comprises: a first node sending a first information block, the first information block being used for requesting downlink coverage information, wherein the first information block comprises a first domain, and the first domain comprised in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted in only a resource spatially associated with the first reference signal resource; and the downlink coverage information comprises at least the former of a broadcast signal or a system information block. The present application aims at saving on broadcast resources in an RIS scenario and improving the efficiency for requesting a system message.

Description

A method and device used in a node for wireless communication Technical Field

The present application relates to a transmission method and device in a wireless communication system, and in particular to a method and device for transmitting wireless signals in a wireless communication system supporting a cellular network.

Background Art

In 2020, the 5.5G industry vision of 5G evolution was first proposed by the industry. In April 2021, 3GPP (3rd Generation Partner Project) officially named 5G evolution 5.5G as 5G-Advanced, started the standardization process, and planned to define 5G-Advanced technical specifications through three versions: Rel-18 (Release-18), Rel-19 and Rel-20. At the end of 2021, the first batch of 28 projects of Rel-18 were approved, and 5.5G technology research and standardization entered the substantive stage. The future Rel-19 and Rel-20 will further explore new 5G-Advanced services and architectures.

RIS (Reconfigurable Intelligent Surface) is an artificial electromagnetic surface structure with programmable electromagnetic properties, which contains a large number of independent low-cost passive subwavelength resonant units. Each RIS unit has independent electromagnetic wave control capabilities, and the response of each unit to wireless signals, such as phase, amplitude, polarization, etc., can be controlled by changing the parameters and spatial distribution of the RIS unit. By superimposing the wireless response signals of a large number of RIS units, specific beam propagation characteristics are formed on a macro scale, thereby forming a flexible and controllable shaped beam, which can eliminate coverage blind spots, enhance edge coverage, and increase the rank of multi-stream transmission. RIS technology has the characteristics of low cost, low energy consumption, programmable, easy deployment, and high shaped gain with a larger antenna scale. It is regarded as a key technology for 5G-Advanced stage research and one of the core visions of 6G.

UE (User Equipment) needs to obtain the SI (System Information) of the cell when selecting a cell, reselecting a cell, switching a cell, entering NG-RAN from other systems, and entering a coverage area from a non-coverage area. SI consists of MIB (Master Information Block) and multiple SIBs (SI Block), which are divided into minimum SI and other SI. The MIB in the minimum SI contains the cell barring status information and basic physical layer information required to receive more SI, such as CORESET#0 configuration, etc., which are sent periodically on BCH (Broadcast Channel); SIB1 defines the scheduling of other SIBs and contains the information required for initial access, which is sent periodically on DL-SCH (Downlink Shared Channel) or sent in a dedicated manner on DL-SCH to RRC_CONNECTED UEs. Other SI includes all SIBs that are not broadcast in the minimum SI. In order to improve the utilization of radio resources and the efficiency of SI acquisition, the 5G NR network supports on-demand requests for other SI. Specifically, for UEs in RRC_IDLE and RRC_INACTIVE states, other SI is requested by triggering random access. For UEs in RRC_CONNECTED state, if configured by the network, other SI requests can be sent to the network via RRC signaling DedicatedSIBRequest signaling, and the gNB can decide to respond using RRCReconfiguration signaling containing the requested SIB in a dedicated or broadcast manner.

Summary of the invention

In order to reduce broadcast resource overhead and acquisition delay when acquiring SI, the UE can send SI requests to the network on demand, including selecting resources such as random access preamble based on configuration in RRC_IDLE and RRC_INACTIVE states, and initiating SI requests through random access procedures; and sending dedicated RRC signaling to request SI based on configuration in RRC_CONNECTED state. The network maps the SIB requested by the UE to the SI message and transmits it in a periodic time domain window (i.e., SI window). The UE monitors the PDCCH (Physical Downlink Control Channel) at the listening opportunity configured in the SI window. The PDCCH listening opportunity for obtaining SI messages corresponds to the SSB (Synchronization Signal Block), and there is a certain mapping relationship between the two. In the existing standards, the SSBs actually transmitted are numbered in ascending order starting from 1 according to their SSB index. In the SI window, the UE assumes that the PDCCH of the SI message is transmitted in at least one PDCCH listening opportunity corresponding to each transmitted SSB, so the SSB selection for receiving the SI message depends on the implementation of the UE. When RIS is introduced into the traditional wireless communication system, the coverage area of the cell may change dynamically due to the controllable RIS unit characteristics. In addition, there may be a reflection link from the base station to the RIS and then to the UE and a direct link from the base station to the UE between the base station and the UE. When the UE enters, leaves or is located in the coverage area of the RIS, it is necessary to optimize or specifically design the sending of its SI request and the reception of SI messages. Therefore, SI request in the RIS scenario is an urgent problem to be solved.

In view of the above problems, this application discloses a solution. It should be noted that although the original intention of this application is to target RIS scenarios, this application can also be applied to other non-RIS scenarios to achieve similar technical effects in terminal and base station scenarios; further, for different scenarios (such as other non-RIS scenarios, including but not limited to capacity enhancement systems, short-range communication systems, unlicensed spectrum communications, IoT The use of a unified design solution for IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, and Internet of Vehicles (IoV) networks can also help reduce hardware complexity and costs. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

In particular, the interpretation of the terminology, nouns, functions, and variables in this application (if not otherwise specified) can refer to the definitions in the 3GPP specification protocols TS38 series and TS37 series. If necessary, reference can be made to 3GPP standards TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, TS38.423 to assist in understanding this application.

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.

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.

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

Sending a first information block, where the first information block is used to request downlink coverage information;

The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a SIB.

As an embodiment, the problem to be solved by the present application includes: how the first node sends the first information block in a RIS scenario.

As an embodiment, the problem to be solved by the present application includes: in a RIS scenario, how the first node indicates the transmission of the requested downlink coverage information.

As an embodiment, the characteristics of the above method include: the first node of the present application sends the first information block containing the first field indicating the first reference signal resource, thereby solving the above problem.

As an embodiment, the characteristics of the above method include: indicating the first reference signal resource through the first domain implicitly indicates the beam, thereby solving the above problem.

As an embodiment, the characteristics of the above method include: based on the indication of the first reference signal resource, the first node can monitor the downlink coverage information on certain beams and time-frequency domain resources, thereby solving the above problem.

As an embodiment, the characteristics of the above method include: the downlink coverage information is transmitted in resources associated with the first reference signal resource space through at least the former of a broadcast signal or a SIB, thereby solving the above problem.

As an embodiment, the characteristics of the above method include: the transmission path of the first information block includes an incident link from the first node to the RIS and a reflected link from the RIS to the second node.

As an embodiment, the benefits of the above method include: the present application supports a RIS-assisted wireless communication system, which has the advantages of eliminating coverage blind spots, enhancing edge coverage, and increasing the rank of multi-stream transmission.

As an embodiment, the benefits of the above method include: only one field is added to indicate that the requested downlink coverage information is transmitted on designated resources, which is beneficial to reducing signaling and monitoring overhead.

As an embodiment, the benefits of the above method include: being facilitating base station scheduling and allocation of wireless resources.

As an embodiment, the benefits of the above method include: it is helpful to reduce unnecessary broadcast resource overhead.

As an embodiment, the benefits of the above method include: being helpful in improving the efficiency of UE acquiring system messages in a RIS scenario.

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

receiving a first signal, wherein the first signal and the first reference signal resource are QCL (Quasi Co-Location);

The transmission of the first information block depends on the first signal.

As an embodiment, the characteristics of the above method include: the first node generates an indication of the first reference signal resource based on reception and measurement of the first signal related to the first reference signal resource QCL.

As an embodiment, the above-mentioned feature that the transmission of the first information block depends on the first signal includes: the first node receives the first signal earlier in timing than sends the first information block.

As an embodiment, the characteristics of the above method include: the transmission path of the first signal includes an incident link from the second node to the RIS and a reflected link from the RIS to the first node.

As an embodiment, the benefits of the above method include: helping the UE to determine the best receiving beam.

As an embodiment, the benefits of the above method include: being helpful in simplifying system design and having good forward compatibility.

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

receiving a second signal;

The second signal includes the downlink coverage information.

As an embodiment, the characteristics of the above method include: the second signal received by the first node includes the requested downlink coverage information.

As an embodiment, the characteristics of the above method include: the transmission path of the second signal includes an incident link from the second node to the RIS and a reflected link from the RIS to the first node.

As an embodiment, the benefits of the above method include: it is helpful to save signaling overhead.

As an embodiment, the benefits of the above method include: facilitating UE to perform beam management.

According to one aspect of the present application, the above method is characterized in that the first information block includes a second field, and the second field included in the first information block is used to indicate the sequence number of the SIB.

As an embodiment, the characteristics of the above method include: the first information block indicates the sequence number of the requested SIB in the second field included therein.

As an embodiment, the characteristics of the above method include: the SIB sequence number indicated in the second field is pre-configured by the higher layer on demand.

As an embodiment, the benefits of the above method include: clearly indicating and requesting the required SIBs on demand, which is beneficial to saving broadcast resource overhead.

As an embodiment, the benefits of the above method include: being helpful in simplifying system design and having good forward compatibility.

According to one aspect of the present application, the above method is characterized in that the first information block includes a third field, the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is satisfied; the location-related information is information other than GNSS (Global Navigation Satellite System or Space-based Augmentation System)-ID or SBAS (Space Based Augmentation System)-ID.

As an embodiment, the characteristics of the above method include: the third field included in the first information block indicates the location-related information of the first node to the second node.

As an embodiment, the characteristics of the above method include: the first node sends the first information block only when the location-related information is satisfied.

As an embodiment, the characteristics of the above method include: the first node does not send the first information block when the location-related information is not satisfied.

As an embodiment, the characteristics of the above method include: different from indicating location-related information based on GNSS-ID or SBAS-ID and requesting a specific positioning (Positioning) SIB, the first information block indicates the requested SIB sequence number and the location-related information in the second field and the third field respectively.

As an embodiment, the benefits of the above method include: helping the base station to determine the location of the UE and saving positioning overhead.

As an embodiment, the benefits of the above method include: requesting the downlink coverage information only in certain specific locations, such as under the coverage of RIS, saving system signaling overhead.

As an embodiment, the benefits of the above method include: being facilitating base station scheduling and allocation of wireless resources.

According to one aspect of the present application, the above method is characterized in that the above phrase that the location-related information is satisfied means that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource.

As an embodiment, the characteristics of the above method include: a situation where the location-related information is satisfied is that the location of the first node belongs to the first area.

As an embodiment, the characteristics of the above method include: the first area is associated with the first reference signal resource, and the first area is within the beam coverage corresponding to the first reference signal resource.

As an embodiment, the characteristics of the above method include: the first area corresponds to an area covered by RIS.

As an embodiment, the benefits of the above method include: facilitating UE to perform beam management.

As an embodiment, the benefits of the above method include: facilitating UE to request downlink coverage information.

According to one aspect of the present application, the above method is characterized in that the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of the wireless signal other than the first signal.

As an embodiment, the characteristics of the above method include: determining the air interface resources occupied by the first information block based on the first signal.

As an embodiment, the characteristics of the above method include: the transmission power value of the physical channel occupied by the first information block depends on the measurement of candidate signals other than the first signal.

As an embodiment, the benefits of the above method include: facilitating the selection of air interface resources and transmission power when the UE requests downlink coverage information.

According to one aspect of the present application, the above method is characterized in that the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal.

As an embodiment, the characteristics of the above method include: although the duplex mode of the frequency band where the first signal is located is frequency division duplex, the frequency band adopts time division duplex working mode on some fixed beams, such as the beam corresponding to the first signal.

As an embodiment, the characteristics of the above method include: the time domain resource pool described in the time domain resources occupied by the first signal and the time domain resource pool described in the time domain resources occupied by the first information block are orthogonal.

As an embodiment, the benefits of the above method include: being helpful in ensuring downlink coverage and avoiding uncertainty in beam coverage caused by the introduction of RIS.

As an embodiment, the benefits of the above method include: being facilitating base station scheduling and configuring time domain resources.

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

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

The present application discloses a method in a second node used for wireless communication, which includes:

receiving a first information block, where the first information block is used to request downlink coverage information;

The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

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

Sending a first signal, where the first signal and the first reference signal resource are QCL;

The transmission of the first information block depends on the first signal.

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

sending a second signal;

The second signal includes the downlink coverage information.

According to one aspect of the present application, the above method is characterized in that the first information block includes a second field, and the second field included in the first information block is used to indicate the sequence number of the system information block.

According to one aspect of the present application, the above method is characterized in that the first information block includes a third field, and the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is met; the location-related information is information other than GNSS-ID or SBAS-ID.

According to one aspect of the present application, the above method is characterized in that the above phrase that the location-related information is satisfied means that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource.

According to one aspect of the present application, the above method is characterized in that the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of the wireless signal other than the first signal.

According to one aspect of the present application, the above method is characterized in that the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal.

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

According to one aspect of the present application, the above method is characterized in that the second node is a serving cell.

According to one aspect of the present application, the above method is characterized in that the second node is a serving cell of the first node.

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

According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

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

A first transceiver sends a first information block, where the first information block is used to request downlink coverage information;

The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

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

A second transceiver receives a first information block, where the first information block is used to request downlink coverage information;

The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

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

It is beneficial to improve the efficiency of UE obtaining system messages in RIS scenarios and reduce broadcast resource overhead;

It is beneficial to the beam management of base stations and UEs, as well as the scheduling and resource allocation of base stations in conjunction with RIS;

No extra signaling instructions are required, saving signaling overhead;

The wireless communication system supporting RIS has the advantages of eliminating coverage blind spots, enhancing edge coverage and increasing the rank of multi-stream transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

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:

FIG1 shows a flow chart of a first node transmission according to an embodiment of the present application;

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

FIG3 is 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;

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

FIG5 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

FIG6 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

FIG7 shows a schematic diagram related to a first information block according to an embodiment of the present application;

FIG8 shows a flowchart related to first node transmission according to an embodiment of the present application;

FIG9 shows a schematic diagram of a reconfigurable smart metasurface coverage area according to an embodiment of the present application;

FIG10 shows a schematic diagram related to a first information block according to an embodiment of the present application;

FIG11 is a schematic diagram showing a time domain resource relationship according to an embodiment of the present application;

FIG12 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

FIG13 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application.

DETAILED DESCRIPTION

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.

Example 1

Embodiment 1 illustrates a flowchart of the first node transmission according to an embodiment of the present application, as shown in FIG1. In FIG1, each box represents a step. It is particularly noted that the order of the steps in the box does not represent a specific time sequence between the steps.

In step 101, the first node sends a first information block, where the first information block is used to request downlink coverage information.

In embodiment 1, the first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

As an embodiment, the first information block is transmitted via higher layer signaling.

As an embodiment, the first information block includes RRC (Radio Resource Control) signaling.

As an embodiment, the first information block is transmitted via RRC signaling.

As an embodiment, the first information block includes one or more RRC messages.

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

As an embodiment, the first information block includes one or more fields in at least one RRC IE.

As an embodiment, the first information block includes information in all or part of the fields of each RRC IE in multiple RRC IEs.

As an embodiment, the physical layer channel occupied by the first information block includes PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first information block is transmitted via Msg3.

As an embodiment, the first information block is transmitted via MsgA.

As an embodiment, the first information block includes one or more fields in a DedicatedSIBRequest message.

As an embodiment, the first field included in the first information block indicates at least one TCI (Transmission Configuration Indicator) status.

As an embodiment, the first field included in the first information block indicates at least one TCI-StateId.

As an embodiment, the first field included in the first information block indicates at least one CSI-RS (Channel State Information-Reference Signal) resource.

As an embodiment, the first field included in the first information block indicates at least one NZP (Non-Zero-Power)-CSI-RS resource.

As an embodiment, the first field included in the first information block indicates at least one NZP-CSI-RS-ResourceId.

As an embodiment, the first field included in the first information block indicates at least one SSB-Index.

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

As an embodiment, the first reference signal resource is an NZP-CSI-RS resource.

As an embodiment, the first reference signal resource corresponds to an NZP-CSI-RS-ResourceId.

As an embodiment, the first reference signal resource corresponds to an SSB-Index.

As an embodiment, the resources associated with the first reference signal resource space include: resources associated with the first reference signal resource QCL.

As an embodiment, the resources associated with the first reference signal resource space include: resources of the wireless signal QCL received in the first reference signal resource.

As an embodiment, the resource associated with the first reference signal resource space includes: resources in a resource set configured for the first reference signal resource, and the resource set includes at least one of a time domain resource set or a frequency domain resource set.

As an embodiment, the resources associated with the first reference signal resource space include: resources of an antenna port QCL of a wireless signal received in the first reference signal resource.

As an embodiment, the resource spatially associated with the first reference signal resource includes: a wireless signal received in the resource adopts the same spatial reception parameter as that of a wireless signal received in the first reference signal resource.

As an embodiment, the resource spatially associated with the first reference signal resource includes: a wireless signal received in the resource adopts the same spatial filtering as the wireless signal received in the first reference signal resource.

As an embodiment, the resource spatially associated with the first reference signal resource includes: a wireless signal received in the resource adopts the same spatial domain filtering as the wireless signal received in the first reference signal resource.

As an embodiment, the resource spatially associated with the first reference signal resource includes: a wireless signal received in the resource adopts the same receiving spatial filtering as the wireless signal received in the first reference signal resource.

As an embodiment, the resource spatially associated with the first reference signal resource includes: a wireless signal received in the resource adopts the same receiving spatial filtering parameters as the wireless signal received in the first reference signal resource.

As an embodiment, the downlink coverage information includes the broadcast signal.

As an embodiment, the downlink coverage information includes the broadcast signal and the system information block.

As a sub-embodiment of the above two embodiments, the broadcast signal includes SSB.

As a sub-embodiment of the above two embodiments, the broadcast signal includes a synchronization signal.

As a sub-embodiment of the above two embodiments, the system information block includes MIB.

As a sub-embodiment of the above two embodiments, the system information block includes SIB1.

As a sub-embodiment of the above two embodiments, the system information block includes SIB2.

As a sub-embodiment of the above two embodiments, the system information block includes SIB3.

As a sub-embodiment of the above two embodiments, the system information block includes SIB4.

As a sub-embodiment of the above two embodiments, the system information block includes SIB5.

As a sub-embodiment of the above two embodiments, the system information block includes SIB6.

As a sub-embodiment of the above two embodiments, the system information block includes SIB7.

As a sub-embodiment of the above two embodiments, the system information block includes SIB8.

As a sub-embodiment of the above two embodiments, the system information block includes SIB9.

As a sub-embodiment of the above two embodiments, the system information block includes SIB10.

As a sub-embodiment of the above two embodiments, the system information block includes SIB11.

As a sub-embodiment of the above two embodiments, the system information block includes SIB12.

As a sub-embodiment of the above two embodiments, the system information block includes SIB13.

As a sub-embodiment of the above two embodiments, the system information block includes SIB14.

As a sub-embodiment of the above two embodiments, the system information block includes SIB15.

As a sub-embodiment of the above two embodiments, the system information block includes SIB16.

As a sub-embodiment of the above two embodiments, the system information block includes SIB17.

As a sub-embodiment of the above two embodiments, the system information block includes SIB18.

As a sub-embodiment of the above two embodiments, the system information block includes SIB19.

As a sub-embodiment of the above two embodiments, the system information block includes SIB20.

As a sub-embodiment of the above two embodiments, the system information block includes SIB21.

As a sub-embodiment of the above two embodiments, the system information block includes SIBpos.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2 .

FIG2 illustrates the network architecture of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced) and future 5G systems. The network architecture of LTE, LTE-A and future 5G systems is called EPS (Evolved Packet System). The 5GNR or LTE network architecture may be referred to as 5GS (5G System)/EPS200 or some other suitable terminology. 5GS/EPS200 may include one or more UEs 201, a UE 241 that communicates with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5G-CN (5G Core Network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server)/UDM (Unified Data Management) 220, and Internet services 230. 5GS/EPS 200 may be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown in FIG2 , 5GS/EPS 200 provides packet switching services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks that provide circuit switching services. NG-RAN 202 includes NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol terminations towards the UE 201. The gNB 203 may be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 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 (Transmitter Receiver Point), or some other suitable terminology. The gNB 203 provides an access point to the 5G-CN/EPC 210 for the UE 201. Examples of UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functional device. A person 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. gNB 203 is connected to 5G-CN/EPC 210 via an S1/NG interface. 5G-CN/EPC 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 the control node that handles the signaling between UE 201 and 5G-CN/EPC 210. Generally, 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.

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

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

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

As an embodiment, the UE 201 is a means of transportation including a car.

As an embodiment, the gNB 203 is a macro cell (Marco Cell) base station.

As an embodiment, the gNB 203 is a micro cell base station.

As an embodiment, the gNB 203 is a pico cell base station.

As an embodiment, the gNB 203 is a home base station (Femtocell).

As an embodiment, the gNB 203 is a base station device that supports large delay difference.

As an embodiment, the gNB 203 is a flying platform device.

As an embodiment, the gNB 203 is a satellite device.

As an embodiment, the gNB 203 is a test device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).

As an embodiment, the wireless link from the UE 201 to the gNB 203 is an uplink, and the uplink is used to perform uplink transmission.

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

As an embodiment, the wireless link between the UE 201 and the gNB 203 includes a cellular network link.

As an embodiment, the UE 201 and the gNB 203 are connected via a Uu air interface.

As an embodiment, the sender of the first information block includes the UE 201.

As an embodiment, the receiver of the first information block includes the gNB 203.

As an embodiment, the sender of the first signal and the second signal includes the gNB 203.

As an embodiment, the receivers of the first signal and the second signal include the UE 201.

As an embodiment, the UE 201 supports the RIS deployment scenario.

As an embodiment, the gNB 203 supports the RIS deployment scenario.

Example 3

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 FIG3 .

FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 shows the radio protocol architecture for a first communication node device (a RSU (Road Side Unit) in a UE or V2X (Vehicle to Everything), a vehicle-mounted device or a vehicle-mounted communication module) and a second node device (gNB, a RSU in a UE or V2X, a vehicle-mounted device or a vehicle-mounted communication module), or a control plane 300 between two UEs using 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. L2 305 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. L2 305 includes MAC (Medium Access Control) sublayer 302, RLC (Radio Link Control) sublayer 303 and PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. PDCP sublayer 304 provides different radio bearers and logical Multiplexing between channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node 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 due to HARQ (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in 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 (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1) and layer 2 (L2). The radio protocol architecture for the first 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 L2 355, the RLC sublayer 353 in L2 355, and the MAC sublayer 352 in L2 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 355 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 the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above L2 355, including a network layer (e.g., IP (Internet Protocol) layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

As an embodiment, the wireless protocol architecture in FIG. 3 is applicable to the first node in the present application.

As an embodiment, the wireless protocol architecture in FIG. 3 is applicable to the second node in the present application.

As an embodiment, the first information block is generated in the PHY 306 or PHY 356.

As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

As an embodiment, the higher layer in the present application includes a MAC layer.

As an embodiment, the higher layer in the present application includes an RRC layer.

Example 4

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

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 .

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.

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 the DL, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for 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., a pilot) in the time domain and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the 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, which is then provided to different antennas 420.

In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiving The receiver 454 receives the 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 decision 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.

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.

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.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory includes 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, the first information block is used to request downlink coverage information; wherein the first information block includes a first field, the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving a first information block.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes 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, the first information block is used to request downlink coverage information; wherein the first information block includes a first field, the first field included in the first information block indicates a first reference signal resource; The downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending a first information block.

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

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

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 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.

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.

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 second 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 second signal.

Example 5

Embodiment 5 illustrates a flow chart of transmission between a first node and a second node according to an embodiment of the present application, as shown in FIG5. In FIG5, each box represents a step. In FIG5, the first node U1 communicates with the second node N2 via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in the present application.

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

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

In embodiment 5, the first information block is used to request downlink coverage information; the first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block; the first signal and the first reference signal resource are QCL, and the transmission of the first information block depends on the first signal.

As an embodiment, the first signal includes CSI-RS.

As an embodiment, the first signal includes PRS (Positioning Reference Signal).

As an embodiment, the first signal includes PTRS (Phase Tracking Reference Signal).

As an embodiment, the first signal includes TRS (Tracking Reference Signal).

As an embodiment, the QCL type (Type) corresponding to the QCL relationship between the first signal and the first reference signal resource is one of {TypeA, TypeB, TypeC, TypeD}.

As an embodiment, the QCL parameters of Type A in the present application include Doppler shift, Doppler spread, average delay and delay spread; the QCL parameters of Type B include Doppler shift and Doppler spread; the QCL parameters of Type C include Doppler shift and average delay; the QCL parameters of Type D include spatial Rx parameter.

As an embodiment, the QCL described in the present application includes at least one of Doppler frequency shift, Doppler spread, average delay, delay spread or spatial reception parameters.

As an embodiment, the specific definitions of TypeA, TypeB, TypeC and TypeD described in this application refer to Section 5.1.5 of TS38.214.

As an embodiment, the QCL type (Type) corresponding to the QCL relationship between the first signal and the first reference signal resource is Type other than {TypeA, TypeB, TypeC, TypeD}.

As an embodiment, the transmission of the first information block depends on the first signal, including that the reception of the first signal by the first signal is earlier in timing than the sending of the first information block.

As an embodiment, the first information block is feedback for the first signal.

As an embodiment, the first information block is a response to the first signal.

As an embodiment, the first signal is used to determine the spatial transmission parameters of the wireless signal carrying the first information block.

As an embodiment, the spatial reception parameters of the first signal are used to determine the spatial transmission parameters of the wireless signal carrying the first information block.

As an embodiment, the first signal is used to determine spatial domain filtering of a wireless signal carrying the first information block.

As an embodiment, the first signal is used to determine the UL TX Spatial Filter of the wireless signal carrying the first information block.

As an embodiment, the first node sends a wireless signal carrying the first information block according to (According to) a spatial relationship reference (with reference to) the first signal.

As an embodiment, the reception of the first signal is used to generate the first information block.

As an embodiment, measurements on the first signal are used to generate the first information block.

As an embodiment, the first node may generate an indication of the first reference signal resource based on reception and measurement of the first signal associated with the first reference signal resource QCL.

Example 6

Embodiment 6 illustrates a flow chart of transmission between a first node and a second node according to an embodiment of the present application, as shown in FIG6. In FIG6, each box represents a step. It is particularly noted that the order of the steps in the box does not represent a specific time sequence relationship between the steps.

For the first node U3, the second signal is received in step S530.

For the second node N4, a second signal is sent in step S540.

In Embodiment 6, the second signal includes the downlink coverage information.

As an embodiment, the reception of the first information block is used to trigger the sending of the second signal.

As an embodiment, the second signal includes SSB.

As an embodiment, the second signal includes at least one SIB from SIB1 to SIB21.

As an embodiment, the second signal includes at least the former of the broadcast signal or the SIB included in the downlink coverage information.

As an embodiment, the sending of the second signal is later in timing than the receiving of the first information block.

As an embodiment, generation of the second signal depends on a second field in the first information block used to indicate a SIB sequence number.

As an embodiment, the sending of the second signal depends on a first field indicating a first reference signal resource and a third field used to indicate location-related information of the first node in the first information block.

As an embodiment, step S530 is after step S511 in the present application.

As an embodiment, step S540 is after step S521 in the present application.

Example 7

Embodiment 7 illustrates a schematic diagram related to a first information block according to an embodiment of the present application, as shown in FIG7 .

In Embodiment 7, the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of a SIB.

As an embodiment, the second field included in the first information block is a bit map (Bitmap), and the bit indicated as "1" in the bit map indicates that the system information block of the corresponding sequence number is requested; the bit indicated as "0" in the bit map indicates that the system information block of the corresponding sequence number is not requested.

As a sub-embodiment of this embodiment, the second field includes 21 bits, and the 21 bits correspond to SIB1 to SIB21 respectively.

As a sub-embodiment of this embodiment, the second field includes 22 bits, and the 22 bits correspond to SIB1 to SIB21 and SIBpos respectively.

As a sub-embodiment of this embodiment, the second field includes X bits, the X bits correspond to X types of SIBs respectively, The type X SIB is predefined, or the type X SIB is configured through higher layer signaling.

Typically, the first information block comprises a second field, and the second field included in the first information block is used to indicate a system information block set requested by the first node.

As an embodiment, the system information block set includes at least one SIB.

As an embodiment, the types of SIBs included in the system information block set are predefined.

As an embodiment, the types of SIBs included in the system information block set are configured through high-layer signaling.

As an embodiment, the types of SIBs included in the system information block set are configured on demand.

Example 8

Embodiment 8 illustrates a flowchart related to the first node transmission according to an embodiment of the present application, as shown in FIG8. In FIG8, each box represents a step. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in the present application.

For the first node, it is confirmed in step 801 that the first node satisfies the location-related information; and a first information block is sent in step 802 .

In Embodiment 8, the first information block includes a third field, and the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is satisfied.

As an embodiment, the location-related information is information other than GNSS-ID or SBAS-ID.

As an embodiment, the location-related information is satisfied to be sent prior to the timing of the first information block.

As an embodiment, the location-related information of the first node includes: the longitude and latitude of the first node.

As a sub-embodiment of this embodiment, the above phrase that the first information block is sent only when the location-related information is satisfied means that the first information block is sent only when the longitude and latitude of the first node satisfy given values.

As a subsidiary embodiment of this sub-embodiment, the given value is fixed, or the given value is predefined.

As a subsidiary embodiment of this sub-embodiment, the given value is configured through high-layer signaling.

As a subsidiary embodiment of this sub-embodiment, the given value is related to the position of the second node in the present application.

As a subsidiary embodiment of this sub-embodiment, the given value is related to the deployment of RIS.

As a subsidiary embodiment of this sub-embodiment, the given value is related to the deployment of the IRS.

As an embodiment, the location-related information of the first node includes: a longitude and latitude interval corresponding to the longitude and latitude of the first node.

As a sub-embodiment of this embodiment, the above phrase that the first information block is sent only when the location-related information is satisfied means that the first information block is sent only when the longitude and latitude interval corresponding to the longitude and latitude of the first node belongs to a given longitude and longitude interval.

As a subsidiary embodiment of this sub-embodiment, the given longitude and latitude interval is fixed, or the given longitude and latitude interval is predefined.

As a subsidiary embodiment of this sub-embodiment, the given longitude and latitude interval is configured through high-layer signaling.

As a subsidiary embodiment of this sub-embodiment, the given longitude and latitude interval is related to the position of the second node in the present application.

As a subsidiary embodiment of this sub-embodiment, the given longitude and latitude interval is related to the deployment of RIS.

As a subsidiary embodiment of this sub-embodiment, the given longitude and latitude interval is related to the deployment of the IRS.

As an embodiment, the location-related information of the first node includes: the distance between the first node and the second node in the present application.

As an embodiment, the location-related information of the first node includes: the AoD (Angle of Departure) corresponding to the first node when receiving the first signal.

As a sub-embodiment of this embodiment, the AoD corresponding to the first node when receiving the first signal corresponds to the AoD when the second node sends the first signal to the RIS.

As a sub-embodiment of this embodiment, the AoD corresponding to the first node when receiving the first signal corresponds to the AoD corresponding to the first signal formed after the RIS reflects the signal from the second node.

As a sub-embodiment of this embodiment, the AoD corresponding to the first node when receiving the first signal corresponds to the AoD corresponding to the wireless signal formed after the RIS reflects the first signal from the second node.

As a sub-embodiment of this embodiment, the phrase that the first information block is sent only when the location-related information is satisfied means that the first information block is sent only when the AoD corresponding to the first node when receiving the first signal is a given AoD.

As a subsidiary embodiment of this sub-embodiment, the given AoD is fixed, or the given AoD is predefined.

As a subsidiary embodiment of this sub-embodiment, the given AoD is configured through high-layer signaling.

As a subsidiary embodiment of this sub-embodiment, the given AoD is related to the location of the second node in the present application.

As a subsidiary embodiment of this sub-embodiment, the given AoD is related to the deployment of RIS.

As a subsidiary embodiment of this sub-embodiment, the given AoD is related to the deployment of the IRS.

As an embodiment, the position-related information of the first node includes: the AoA (Angle of Arrival) corresponding to the first node when receiving the first signal, that is, the AoA when the first node receives the first signal.

As a sub-embodiment of this embodiment, the above phrase that the first information block is sent only when the location-related information is satisfied means that the first information block is sent only when the AoA corresponding to the first node when receiving the first signal is located in a given AoA interval.

As a subsidiary embodiment of this sub-embodiment, the given AoA interval is fixed, or the given AoA interval is predefined.

As a subsidiary embodiment of this sub-embodiment, the given AoA interval is configured through high-layer signaling.

As a subsidiary embodiment of this sub-embodiment, the given AoA interval is related to the position of the second node in the present application.

As a subsidiary embodiment of this sub-embodiment, the given AoA interval is related to the deployment of RIS.

As a subsidiary embodiment of this sub-embodiment, the given AoA interval is related to the deployment of the IRS.

As an embodiment, the location-related information of the first node includes: a location interval where the first node is located relative to the second node in the present application.

As a sub-embodiment of this embodiment, the above phrase that the first information block is sent only when the location-related information is satisfied means that the first information block is sent only when the location interval where the first node is located relative to the second node in this application is a given location interval.

As a subsidiary embodiment of this sub-embodiment, the given position interval is fixed, or the given position interval is predefined.

As a subsidiary embodiment of this sub-embodiment, the given location interval is configured through high-layer signaling.

As a subsidiary embodiment of this sub-embodiment, the given location interval is related to the location of the second node in the present application.

As a subsidiary embodiment of this sub-embodiment, the given location interval is related to the deployment of RIS.

As a subsidiary embodiment of this sub-embodiment, the given location interval is related to the deployment of the IRS.

Embodiment 9

Example 9 illustrates a schematic diagram of a reconfigurable smart metasurface coverage area according to an embodiment of the present application, as shown in FIG9 .

In Embodiment 9, the first node is located in the first area, and the downlink coverage of the transmission sent by the second node and reflected by the RIS includes the first area.

As an embodiment, the phrase that the location-related information is satisfied means that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource.

As an embodiment, the transmission path between the first node and the second node includes a cascade link formed by a wireless link from the first node to the RIS and a wireless link from the RIS to the second node.

As an embodiment, the first area corresponds to the coverage of the beamforming vector corresponding to the first reference signal resource.

As an embodiment, the first area is covered by an antenna port associated with the first reference signal resource.

As an embodiment, the first area is associated with the SSB service of the first reference signal resource.

As an embodiment, the first area is associated with the SIB service of the first reference signal resource.

As an embodiment, the wireless signal received in the first area is consistent with the first reference signal resource QCL.

As an embodiment, the antenna port used by the wireless signal received in the first area is QCL with the antenna port of the first reference signal resource.

As an embodiment, the QCL type corresponding to the wireless signal received in the first area and the first reference signal resource is one of TypeA, TypeB, TypeC or TypeD.

As an embodiment, there is no direct connection path between the second node and the first node that does not pass through RIS reflection.

Example 10

Embodiment 10 illustrates a schematic diagram related to a first information block according to an embodiment of the present application, as shown in FIG10 .

In Embodiment 10, the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of wireless signals other than the first signal.

As an embodiment, the first signal is used to determine the time domain resources occupied by the first information block.

As an embodiment, the first signal is used to determine the frequency domain resources occupied by the first information block.

As an embodiment, the first signal is used to determine code domain resources occupied by the first information block.

As an embodiment, the air interface resources occupied by the first information block are associated with the time domain position of the first signal.

As an embodiment, the air interface resources occupied by the first information block are associated with the time-frequency position of the first signal.

As an embodiment, the time-frequency resources occupied by the first information block are implicitly indicated by the QCL relationship corresponding to the first signal.

As an embodiment, the time-frequency resources occupied by the first information block are implicitly indicated by the time-frequency position of the first signal.

As an embodiment, the air interface resources include time domain resources, frequency domain resources and code domain resources.

As an embodiment, the air interface resources include time-frequency resources and code domain resources.

As an embodiment, the air interface resources include time-frequency resources.

As an embodiment, the transmission power value of the physical channel occupied by the first information block depends on the measurement of a candidate signal other than the first signal, and the candidate signal is non-QCL with the first signal.

As an embodiment, the measurement of the candidate signal other than the first signal includes channel measurement.

As an embodiment, the measurement of candidate signals other than the first signal includes interference measurement.

As an embodiment, the measurement of the candidate signal other than the first signal includes layer 1 (Layer 1, L1) measurement.

As an embodiment, the measurement of the candidate signal other than the first signal includes layer 3 (Layer 3, L3) measurement.

As an embodiment, the measurement of candidate signals other than the first signal includes RSRP (Reference Signal Received Power) measurement.

As an embodiment, the measurement of candidate signals other than the first signal includes RSRQ (Reference Signal Received Quality) measurement.

As an embodiment, the measurement of candidate signals other than the first signal includes RSSI (Received Signal Strength Indicator) measurement.

As an embodiment, the measurement of the candidate signal other than the first signal includes BLER (BLock Error Rate) measurement.

As an embodiment, the measurement of the candidate signal other than the first signal includes SINR (Signal to Noise and Interference Ratio) measurement.

As an embodiment, the measurement of the candidate signal other than the first signal is used to determine the transmission power value of the physical channel occupied by the first information block.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of the time domain resource relationship according to an embodiment of the present application, as shown in Figure 11. In Figure 11, a rectangle represents a time domain unit; a rectangle filled with left oblique lines represents the time domain resources occupied by the first time domain resource pool; a rectangle filled with grid lines represents the time domain resources occupied by the second time domain resource pool. It is worth noting that this figure is only for illustrative purposes and does not represent the time domain resources actually occupied by the first reference signal and the second reference signal in a configured time slot.

In embodiment 11, the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal.

As an embodiment, the time domain resources occupied by the first signal are in a second time domain resource pool.

As an embodiment, the time domain resources occupied by the first information block are in a first time domain resource pool.

As an embodiment, the time domain resources occupied by the first signal are earlier than the time domain resources occupied by the first information block.

As an embodiment, the first time domain resource pool includes multiple time slots.

As an embodiment, the first time domain resource pool includes multiple subframes.

As an embodiment, the first time domain resource pool includes multiple multi-carrier symbols.

As an embodiment, the second time domain resource pool includes multiple time slots.

As an embodiment, the second time domain resource pool includes multiple subframes.

As an embodiment, the second time domain resource pool includes multiple multi-carrier symbols.

As an embodiment, the second information block is used to configure the first time domain resource pool and the second time domain resource pool.

As a sub-embodiment of this embodiment, the second information block is higher layer signaling.

As a sub-embodiment of this embodiment, the second information block is broadcast.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes TDD.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes Config.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes Configuration.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes Common.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes IRS.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes UL.

As a sub-embodiment of this embodiment, the name of the RRC signaling used to carry the second information block includes DL.

As a sub-embodiment of this embodiment, the second information block includes tdd-UL-DL-ConfigurationCommon.

As a sub-embodiment of this embodiment, the second information block includes TDD-UL-DL-ConfigCommon.

Example 12

Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG12. In FIG12, the processing device 1200 in the first node includes a first receiver 1201 and a first transceiver 1202.

In Embodiment 12, the first transceiver 1202 sends a first information block, where the first information block is used to request downlink coverage information.

In embodiment 12, the first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

As an embodiment, the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of a system information block.

As an embodiment, the first information block includes a third field, and the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is met; the location-related information is information other than GNSS-ID or SBAS-ID.

As an embodiment, the above phrase that the location-related information is satisfied means that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource.

As an embodiment, the first receiver 1201 receives a first signal, and the first signal and the first reference signal resource are QCL; wherein the transmission of the first information block depends on the first signal.

As an embodiment, the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of the wireless signal other than the first signal.

As an embodiment, the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal.

As an embodiment, the first transceiver 1202 receives a second signal; wherein the second signal includes the downlink coverage information.

As an embodiment, the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

As an embodiment, the first node is user equipment.

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

As an embodiment, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller/processor 459, memory 460, data source 467} in Embodiment 4.

As an embodiment, the first transceiver 1202 includes at least one of {antenna 452, transmitter/receiver 454, transmit processor 468, multi-antenna transmit processor 457, receive processor 456, multi-antenna receive processor 458, controller/processor 459, memory 460, data source 467} in Example 4.

Embodiment 13

Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG13. In FIG13, the processing device 1300 in the second node includes a first transmitter 1301 and a second transceiver 1302.

In Embodiment 13, the second transceiver 1302 receives a first information block, where the first information block is used to request downlink coverage information.

In embodiment 13, the first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

As an embodiment, the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of a system information block.

As an embodiment, the first information block includes a third field, and the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is met; the location-related information is information other than GNSS-ID or SBAS-ID.

As an embodiment, the above phrase that the location-related information is satisfied means that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource.

As an embodiment, the first transmitter 1301 sends a first signal, and the first signal and the first reference signal resource are QCL; wherein the transmission of the first information block depends on the first signal.

As an embodiment, the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of the wireless signal other than the first signal.

As an embodiment, the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal.

As an embodiment, the second transceiver 1302 sends a second signal; wherein the second signal includes the downlink coverage information.

As an embodiment, the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block.

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

As an embodiment, the second node is user equipment.

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

As an embodiment, the first transmitter 1301 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller/processor 475, memory 476} in Embodiment 4.

As an embodiment, the second transceiver 1302 includes at least one of {antenna 420, receiver/transmitter 418, receiving processor 470, multi-antenna receiving processor 472, transmitting processor 416, multi-antenna transmitting processor 471, controller/processor 475, memory 476} in Example 4.

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 related 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 a CD, etc. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module, and the present application is not limited to any specific form of combination of software and hardware. 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 vehicles, vehicles, RSUs, wireless sensors, Internet access cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things, narrowband 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, evolved wireless base stations), gNB, TRP, GNSS (Global Navigation Satellite System, Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSU, drones, test equipment, such as transceivers or signaling testers that simulate some functions of base stations and other wireless communication equipment.

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 (32)

A first node used for wireless communication, comprising: A first transceiver sends a first information block, where the first information block is used to request downlink coverage information; The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is only transmitted in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block (System Information Block, SIB). The first node according to claim 1, characterized in that it comprises: A first receiver receives a first signal; The first signal and the first reference signal resource are quasi-co-located, and the transmission of the first information block depends on the first signal. The first node according to claim 1 or 2, characterized in that it comprises: The first transceiver receives a second signal; The second signal includes the downlink coverage information. The first node according to any one of claims 1 to 3, characterized in that the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of the SIB. The first node according to any one of claims 1 to 4 is characterized in that the first information block includes a third field, the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is satisfied; the location-related information is information other than GNSS-ID or SBAS-ID. The first node according to any one of claims 5, characterized in that the above phrase that the location-related information is satisfied means that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource. The first node according to any one of claims 2 to 6 is characterized in that the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of wireless signals other than the first signal. The first node according to any one of claims 2 to 6 is characterized in that the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal. A second node used for wireless communication, characterized by comprising: A second transceiver receives a first information block, where the first information block is used to request downlink coverage information; The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is only transmitted in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a SIB. The second node according to claim 9 is characterized by comprising: a first transmitter, sending a first signal, wherein the first signal and the first reference signal resource are quasi-co-located; wherein the transmission of the first information block depends on the first signal. The second node according to claim 9 or 10 is characterized by comprising: the second transceiver, sending a second signal; wherein the second signal includes the downlink coverage information. The second node according to any one of claims 9 to 11, characterized in that the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of the SIB. The second node according to any one of claims 9 to 12 is characterized in that the first information block includes a third field, the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is satisfied; the location-related information is information other than GNSS-ID or SBAS-ID. The second node according to claim 13 is characterized in that the meaning of the above phrase that the location-related information is satisfied includes that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource. The second node according to any one of claims 10 to 14 is characterized in that the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of wireless signals other than the first signal. The second node according to any one of claims 10 to 14, characterized in that the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the first information block The occupied time domain resources do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal. A method for a first node used in wireless communication, comprising: Sending a first information block, where the first information block is used to request downlink coverage information; The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a system information block. The method according to claim 17 is characterized in that it includes: receiving a first signal, wherein the first signal and the first reference signal resource are quasi-co-located; wherein the transmission of the first information block depends on the first signal. The method according to claim 17 or 18 is characterized by comprising: receiving a second signal; wherein the second signal includes the downlink coverage information. The method according to any one of claims 17 to 19, characterized in that the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of the SIB. The method according to any one of claims 17 to 20 is characterized in that the first information block includes a third field, the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is satisfied; the location-related information is information other than GNSS-ID or SBAS-ID. The method according to claim 21 is characterized in that the meaning of the above phrase that the location-related information is satisfied includes that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource. The method according to any one of claims 18 to 22 is characterized in that the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of the wireless signal other than the first signal. The method according to any one of claims 18 to 22 is characterized in that the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal. A method for a second node used in wireless communication, characterized by comprising: receiving a first information block, where the first information block is used to request downlink coverage information; The first information block includes a first field, and the first field included in the first information block indicates a first reference signal resource; the downlink coverage information requested by the first information block is transmitted only in resources associated with the first reference signal resource space; the downlink coverage information includes at least the former of a broadcast signal or a SIB. The method according to claim 25 is characterized in that it includes: sending a first signal, wherein the first signal and the first reference signal resource are quasi-co-located; wherein the transmission of the first information block depends on the first signal. The method according to claim 25 or 26 is characterized in that it includes: sending a second signal; wherein the second signal includes the downlink coverage information. The method according to any one of claims 25 to 27 is characterized in that the first information block includes a second field, and the second field included in the first information block is used to indicate a sequence number of the SIB. The method according to any one of claims 25 to 28 is characterized in that the first information block includes a third field, the third field included in the first information block is used to indicate location-related information of the first node, and the first information block is sent only when the location-related information is satisfied; the location-related information is information other than GNSS-ID or SBAS-ID. The method according to claim 29 is characterized in that the meaning of the above phrase that the location-related information is satisfied includes that the location of the first node belongs to a first area, and the first area is associated with the first reference signal resource. The method according to any one of claims 26 to 30 is characterized in that the air interface resources occupied by the first information block are associated with the first signal, and the transmission power value of the physical channel occupied by the first information block depends on the measurement of wireless signals other than the first signal. The method according to any one of claims 26 to 30 is characterized in that the duplex mode of the frequency band in which the first signal is located is frequency division duplex, the time domain resources occupied by the first signal do not overlap with the first time domain resource pool, and the time domain resources occupied by the first information block do not overlap with the first time domain resource pool. The time domain resources occupied by the first time domain resource pool do not overlap with the second time domain resource pool; the time domain resources occupied by the first time domain resource pool and the time domain resources occupied by the second time domain resource pool are orthogonal.