Method and device used for wireless communication

Abstract

The invention discloses a method and device used for wireless communication, and the method comprises the steps: receiving a first signaling which indicates a first SS / PBCH block; the frequency domain position of the first SS / PBCH block is outside the active BWP; receiving a DM-RS of a first PDSCH (Physical Downlink Shared Channel) on the active BWP; wherein the DM-RS of the first PDSCH and the first SS / PBCH block are overlapped on the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are in a semi-co-location mode depends on the first signaling. The method provided by the invention is beneficial to improving performance, reducing resource consumption and reducing power consumption.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and relates to determining a semi-co-location relationship of a DM-RS of a PDSCH, and in particular to determining whether a semi-co-location relationship exists with an SS / PBCH other than an active BWP. Background Art

[0002] In the future, the application scenarios of wireless communication systems will become more and more diversified, and different application scenarios will put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to study the new radio (NR) (or Fifth Generation, 5G) technology, and the NR WI (Work Item) was passed at the 3GPP RAN #75 plenary meeting, and the standardization work on NR began.

[0003] In communication, both LTE (Long Term Evolution) and 5G NR involve accurate reception of reliable information, optimized energy efficiency, determination of information validity, flexible resource allocation, scalable system structure, efficient non-access layer information processing, low service interruption and drop rate, and support for low power consumption. This is of great significance to the normal communication between base stations and user equipment, the reasonable scheduling of resources, and the balancing of system loads. It can be said to be the cornerstone of high throughput, meeting the communication needs of various services, improving spectrum utilization, and improving service quality. It is indispensable for eMBB (ehanced Mobile BroadBand), URLLC (Ultra Reliable Low Latency Communication) and eMTC (enhanced Machine Type Communication). At the same time, in IIoT (Industrial Internet of Things, Industrial Internet of Things, V2X (Vehicular to X, vehicle-mounted communication), device-to-device communication, unlicensed spectrum communication, user communication quality monitoring, network planning optimization, NTN (Non Territerial Network, non-terrestrial network communication), TN (Territerial Network, terrestrial network communication), dual connectivity (Dual connectivity) system, wireless resource management and multi-antenna codebook selection, signaling design, neighbor management, business management, beamforming, there are extensive needs, information transmission methods are divided into broadcast and unicast, both transmission methods are essential for 5G systems, because they are very helpful to meet the above requirements. The UE can be connected to the network directly or through a relay.

[0004] As the scenarios and complexity of the system continue to increase, higher requirements are put forward for reducing the interruption rate, reducing latency, enhancing reliability, enhancing system stability, business flexibility, and power saving. At the same time, the compatibility between different versions of different systems needs to be considered during system design. At the same time, the types of services supported by 5G systems are becoming more and more abundant, and these new services have also brought corresponding challenges to the system.

[0005] The 3GPP standardization organization has done relevant standardization work for 5G and formed a series of standards. The standard contents can be referenced:

[0006] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.331 / 38331-h10.zip

[0007] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.323 / 38323-h10.zip

[0008] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.321 / 38321-h10.zip

[0009] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.211 / 38211-h10.zip

[0010] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.202 / 38202-h10.zip Summary of the invention

[0011] In wireless communication systems, determining the semi-co-location (Quasico-location, QCL) relationship of the DM-RS (DeModulation-Reference Signal) of the PDSCH (physical downlink shared channel) is a very important issue. In the scenario where the SS / PBCH (synchronization signal / physical broadcast channel) block belongs to a non-active BWP, determining whether the DM-RS of the PDSCH is semi-co-located with the SS / PBCH block outside the active BWP is a problem that needs to be solved. Researchers found that in general, communication often only involves determining that the DM-RS of the PDSCH is semi-co-located with the SS / PBCH block within the active BWP, but in some scenarios, if the DM-RS of the PDSCH has a semi-co-location relationship with the SS / PBCH block outside the active BWP, additional benefits such as increased reliability and reduced system resource consumption can be obtained. The researchers further found that the SS / PBCH blocks outside the active BWP are preferably in different semi-co-location relationships with the DM-RS of the PDSCH under different circumstances, including no semi-co-location relationship or a semi-co-location relationship, which can improve performance and help ensure flexibility. For example, when it is not necessary to have a semi-co-location relationship with the SS / PBCH blocks outside the active BWP, it is not necessary to have a semi-co-location relationship with the SS / PBCH outside the active BWP. The researchers further found that whether there is a semi-co-location relationship is best to rely on the first signaling, which is conducive to achieving network optimization processing and avoiding misoperation; the researchers further found that in the prior art, the DM-RS of the PDSCH cannot at least be semi-co-located with the SS / PBCH outside the active BWP, which has an adverse effect on the reception of the PDSCH; the researchers found that the SS / PBCH block is used for cell search of all UEs, so when configuring and determining the semi-co-location relationship with the DM-RS of the PDSCH, it is subject to great restrictions and has insurmountable technical obstacles; the method proposed in this application is controlled by the first signaling, avoiding the impact on other users and overcoming technical obstacles.

[0012] In view of the above-mentioned problems, this application provides a solution.

[0013] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of 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 addition, the method proposed in the present application can also be used to solve other problems in the communication system.

[0014] As an embodiment, the interpretation of the terminology in the present application refers to the definition of the TS38 series of specification protocols of 3GPP.

[0015] 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.

[0016] The present application discloses a method in a first node used for wireless communication, comprising:

[0017] receiving a first signaling indicating a first SS / PBCH block; a frequency domain location of the first SS / PBCH block being outside an active BWP;

[0018] receiving a DM-RS for a first PDSCH on the active BWP;

[0019] The DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0020] As an embodiment, the problems to be solved by the present application include: how to determine whether the DM-RS of the first PDSCH has a semi-co-location relationship with the first SS / PBCH block; how to make it controllable whether the DM-RS of the first PDSCH has a semi-co-location relationship with the first SS / PBCH block; how to control whether the DM-RS of the first PDSCH has a semi-co-location relationship with the first SS / PBCH block; how to support the DM-RS of the first PDSCH to have a semi-co-location relationship with SS / PBCH blocks other than the active BWP.

[0021] As an embodiment, the benefits of the above method include: it can support the DM-RS of the first PDSCH to have a semi-co-location relationship with the SS / PBCH blocks outside the active BWP; it is controllable whether the DM-RS of the first PDSCH has a semi-co-location relationship with the first SS / PBCH block; it can improve the signal reception and transmission performance, increase flexibility, and reduce resource consumption; the signaling efficiency is higher and saves more resources, that is, the first signaling not only indicates the first SS / PBCH but also controls whether the DM-RS of the first PDSCH has a semi-co-location relationship with the first SS / PBCH block, and there is no need to send subsequent additional signaling to control whether the DM-RS of the first PDSCH has a semi-co-location relationship with the first SS / PBCH block, unless for better results.

[0022] Specifically, according to one aspect of the present application, the DM-RS of the first PDSCH and the first SS / PBCH block are associated with the same PCI (physical cell ID).

[0023] Specifically, according to one aspect of the present application, the first signaling implicitly indicates whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0024] As an example, the benefits of implicit indication include greater resource conservation.

[0025] Specifically, according to one aspect of the present application, the first SS / PBCH block is not associated with SIB1.

[0026] Specifically, according to one aspect of the present application, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the first signaling does not configure the TCI state of the first PDSCH and does not configure the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures the TCI state of the first PDSCH or configures at least one of the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0027] Specifically, according to one aspect of the present application, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when receiving the first SS / PBCH does not require suspending reception of the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when receiving the first SS / PBCH requires suspending reception of the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0028] Specifically, according to one aspect of the present application, whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on a first time length, and the first time length is related to semi-co-location.

[0029] Specifically, according to one aspect of the present application, whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the IE indicating the first SS / PBCH block in the first signaling. When the first SS / PBCH block is indicated by the first IE of the first signaling, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block; when the first SS / PBCH block is indicated by the second IE of the first signaling, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0030] Specifically, according to one aspect of the present application, a first transmitter sends first auxiliary information, where the first auxiliary information indicates which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling have performed link quality assessment;

[0031] The first SS / PBCH block is one of the multiple SS / PBCH blocks indicated by the first signaling.

[0032] Specifically, according to one aspect of the present application, the first node is an Internet of Things terminal.

[0033] Specifically, according to one aspect of the present application, the first node is a user equipment.

[0034] Specifically, according to one aspect of the present application, the first node is a relay.

[0035] Specifically, according to one aspect of the present application, the first node is an access network device.

[0036] Specifically, according to one aspect of the present application, the first node is a vehicle-mounted terminal.

[0037] Specifically, according to one aspect of the present application, the first node is an aircraft.

[0038] Specifically, according to one aspect of the present application, the first node is a mobile phone.

[0039] The present application discloses a first node used for wireless communication, comprising:

[0040] A first receiver receives a first signaling, wherein the first signaling indicates a first SS / PBCH block; a frequency domain location of the first SS / PBCH block is outside an active BWP;

[0041] The first receiver receives a DM-RS of a first PDSCH on the active BWP;

[0042] The DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0043] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0044] To save resources, the active BWP may not be configured with reference signals that are semi-co-located with the DM-RS of the first PDSCH, such as SS / PBCH blocks.

[0045] Increased reliability, when the system has not yet configured a reference signal that is semi-co-located with the DM-RS of the first PDSCH, such as when the TCI state is not configured, such as in certain mobility scenarios, the semi-co-location relationship between the DM-RS of the PDSCH and the SS / PBCH blocks outside the active BWP can still be determined, thereby improving the reception performance.

[0046] Determining the semi-co-location of the DM-RS of the first PDSCH according to the first signaling can increase controllability, that is, the semi-co-location relationship of the DM-RS of the PDSCH is controllable and configurable.

[0047] Network power can be saved and the network can reduce the transmission of SS / PBCH blocks.

[0048] When necessary, the DM-RS of the first PDSCH may be made to have a semi-co-location relationship with the first SS / PBCH block; when not necessary, the DM-RS of the first PDSCH may not have to have a semi-co-location relationship with the first SS / PBCH block. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 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:

[0050] Figure 1 A flowchart of receiving a first signaling and receiving the DM-RS of a first PDSCH on the active BWP according to an embodiment of the present application is shown;

[0051] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0052] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0053] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0054] Figure 5 A flow chart showing wireless signal transmission according to an embodiment of the present application is shown;

[0055] Figure 6 A schematic diagram of a first SS / PBCH block according to an embodiment of the present application is shown;

[0056] Figure 7 A schematic diagram of a BWP according to an embodiment of the present application is shown;

[0057] Figure 8 A schematic diagram of a semi-co-location type according to an embodiment of the present application is shown;

[0058] Fig. 9 A schematic diagram of a cell according to an embodiment of the present application is shown;

[0059] Fig.10 A schematic diagram showing a first SS / PBCH block indicated by a first signaling according to an embodiment of the present application is shown;

[0060] Fig.11 A schematic diagram showing whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depending on the first time length according to an embodiment of the present application;

[0061] Fig.12 A schematic diagram illustrating a processing device in a first node according to an embodiment of the present application is illustrated;

[0062] Fig.13 The following is a schematic diagram illustrating a processing device used in a first node according to an embodiment of the present application.

[0063] Implementation

[0064] 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.

[0065] Example 1

[0066] Embodiment 1 illustrates a flowchart of receiving the DM-RS of the first PDSCH on the active BWP according to the first signaling of an embodiment of the present application, as shown in the attached Figure 1 Attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0067] In Embodiment 1, the first node in the present application receives a first signaling in step 101; receives a DM-RS of a first PDSCH on the active BWP in step 102;

[0068] Among them, the first signaling indicates the first SS / PBCH block; the frequency domain position of the first SS / PBCH block is outside the active BWP; the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0069] As an embodiment, the first node is a UE (User Equipment).

[0070] As an embodiment, the first node is in an RRC connected state.

[0071] As an embodiment, the first node is not a RedCap (Reduced Capability) UE.

[0072] As an embodiment, the first node does not use a shared frequency channel for access.

[0073] 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.

[0074] As an embodiment, any parameter not explicitly described in the present application may be indicated by the network or configured by the network or pre-configured.

[0075] As an embodiment, any parameter not explicitly described in the present application can be determined by the first node according to its internal algorithm when not indicated by the network.

[0076] As an embodiment, any parameter in the present application may be initialized to 0 when not indicated by the network.

[0077] As an embodiment, any parameter in the present application may be set to a random number when not indicated by the network.

[0078] As an embodiment, any parameter in the present application can be selected based on simulation results when not indicated by the network.

[0079] As an embodiment, the serving cell refers to the cell where the UE resides. Performing a cell search includes the UE searching for a suitable cell of the selected PLMN (Public Land Mobile Network) or SNPN (Stand-alone Non-Public Network), selecting the suitable cell to provide available services, and monitoring the control channel of the suitable cell. This process is defined as residing on the cell; that is, a residing cell is the serving cell of the UE relative to the UE. Residing on a cell in the RRC idle state or the RRC inactive state has the following benefits: it enables the UE to receive system information from the PLMN or SNPN; after registration, if the UE wishes to establish an RRC connection or continue a suspended RRC connection, the UE can do so by performing initial access on the control channel of the residing cell; the network can page the UE; and the UE can receive ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert System) notifications.

[0080] As an embodiment, for a UE in an RRC connected state that is not configured with CA / DC (carrier aggregation / dual connectivity), there is only one service cell including a primary cell. For a UE in an RRC connected state that is configured with CA / DC (carrier aggregation / dual connectivity), the service cell is used to indicate a set of cells including a special cell (SpCell) and all cells from the small cell. The primary cell (Primary Cell) is an MCG (Master Cell Group) cell that operates on the main frequency. The UE performs an initial connection establishment process or initiates connection reconstruction on the primary cell. For dual connection operations, the special cell refers to the PCell (Primary Cell) of the MCG or the PSCell (Primary SCGCell) of the SCG (Secondary Cell Group); if it is not a dual connection operation, the special cell refers to the PCell.

[0081] As an embodiment, the operating frequency of the SCell (Secondary Cell) is a secondary frequency.

[0082] As an example, individual contents of an information element are referred to as fields.

[0083] As an embodiment, MR-DC (Multi-Radio Dual Connectivity) refers to dual connectivity between E-UTRA and NR nodes, or dual connectivity between two NR nodes.

[0084] As an embodiment, in MR-DC, the wireless access node that provides the control plane connection to the core network is the master node, which may be a master eNB, a master ng-eNB, or a master gNB.

[0085] As an embodiment, MCG refers to a group of service cells associated with a master node in MR-DC, including SpCells, and may also, optionally, include one or more SCells.

[0086] As an embodiment, PCell is the SpCell of MCG.

[0087] As an embodiment, the PSCell is the SpCell of the SCG.

[0088] As an embodiment, in MR-DC, the control plane connection to the core network is not provided, and the radio access node that provides additional resources to the UE is a slave node. The slave node can be an en-gNB, a slave ng-eNB or a slave gNB.

[0089] As an embodiment, in MR-DC, a group of service cells associated with a slave node is a SCG (secondary cell group), including a SpCell and, optionally, one or more SCells.

[0090] As an embodiment, the first node is configured with at least an MCG, and the MCG configured with the first node includes at least one SCell.

[0091] As an embodiment, the first node is configured with MCG and SCG.

[0092] As a sub-embodiment of this embodiment, the MCG configured by the first node includes at least one SCell.

[0093] As a sub-embodiment of this embodiment, the SCG configured by the first node includes at least one SCell.

[0094] As an embodiment, the first node is only configured with MCG but not with SCG.

[0095] As a sub-embodiment of this embodiment, the method proposed in the present application can also achieve beneficial effects in a scenario where SCG is not configured.

[0096] As an embodiment, the MCG of the first node includes only the PCell but not the SCell.

[0097] As a sub-embodiment of this embodiment, the method proposed in the present application can also achieve beneficial effects in a scenario where SCell is not configured.

[0098] As an embodiment, the first node does not use CA.

[0099] As a sub-embodiment of this embodiment, the method proposed in this application can also achieve beneficial effects in a scenario where CA is not used.

[0100] As an embodiment, the first signaling is RRC signaling.

[0101] As an embodiment, the first signaling is unicast signaling.

[0102] As an embodiment, the first signaling is sent to the first node via a dedicated control channel (DCCH).

[0103] As an embodiment, the first signaling is an RRCReconfiguration message.

[0104] As an embodiment, the first signaling is at least one information element in an RRCReconfiguration message.

[0105] As an embodiment, the first signaling is sent to the first node via unicast or a dedicated control channel to perform targeted configuration on the first node.

[0106] As an embodiment, the first node sends first capability information.

[0107] As an embodiment, the first capability information is sent before receiving the first signaling.

[0108] As a sub-embodiment of this embodiment, the first capability information indicates whether the first node has the ability to receive the first SS / PBCH block.

[0109] As a sub-embodiment of this embodiment, the first capability information is UE CapabilityInformation.

[0110] As a sub-embodiment of this embodiment, the first capability information indicates whether a bandwidth supported by the first node is sufficient to receive the first SS / PBCH block outside the active BWP.

[0111] As a sub-embodiment of this embodiment, the first capability information indicates whether it is recommended to configure SS / PBCH blocks outside the active BWP to be semi-co-located with the DM-RS of the first PDSCH.

[0112] As a sub-embodiment of this embodiment, the first node determines that the first capability information indicates a recommended configuration of SS / PBCH blocks outside the active BWP and semi-co-location of the DM-RS of the first PDSCH based on the supported bandwidth being sufficient to receive the first SS / PBCH.

[0113] As a sub-embodiment of this embodiment, the network sends the first signaling according to the first capability information.

[0114] As a sub-embodiment of this embodiment, the network sends the first signaling according to the saved information of the first node.

[0115] As a sub-embodiment of this embodiment, the network sends the first signaling according to the saved category to which the first node belongs.

[0116] As an embodiment, the method proposed in the present application can be configured for a specific capable UE, and can avoid adjusting the first SS / PBCH block to adapt the UE, thereby avoiding interference to other UEs.

[0117] As an embodiment, for PDSCH, closed-loop based DM-RS (DMRS) spatial multiplexing is supported; for the first and second types of DM-RS, up to 8 and 12 orthogonal downlink DM-RS ports are supported respectively; each UE supports up to 8 orthogonal downlink DM-RS ports for SU-MIMO and up to 4 downlink DM-RS ports for MU-MIMO; for 1 to 4 layer transmission, the number of SU-MIMO codewords is 1; for 5 to 8 layer transmission, the number of SU-MIMO codewords is 2.

[0118] As an embodiment, DM-RS and the corresponding PDSCH are transmitted using the same precoding matrix, and the UE does not need to know the precoding matrix when demodulating; the transmitter can use different precoding matrices for different parts of the transmission bandwidth to achieve the effect of frequency selective precoding; the same precoding matrix is ​​the same within a precoding resource block group, and the precoding resource block group is a set of physical resource blocks.

[0119] As an embodiment, at least one symbol with a demodulation reference signal appears in each layer where the PDSCH is transmitted.

[0120] As an embodiment, higher layers may configure 3 additional DM-RSs.

[0121] As an embodiment, at each layer of each frequency hopping where a PUSCH (physical uplink shared channel) is sent, the UE sends at least one symbol with a demodulation reference signal.

[0122] As an embodiment, the DM-RS is generated by a pseudo-random sequence.

[0123] As an embodiment, the first PDSCH and the DM-RS of the first PDSCH are multiplexed in the time domain and / or frequency domain.

[0124] As a sub-embodiment of this embodiment, the first PDSCH and the DM-RS of the first PDSCH are multiplexed in one PRB (physical resource block).

[0125] As an embodiment, the network indicates the multiplexing method of the first PDSCH and the DM-RS of the first PDSCH on time-frequency resources.

[0126] As an embodiment, the network indicates the multiplexing method of the first PUSCH and the DM-RS of the first PUSCH on time-frequency resources.

[0127] As an embodiment, the DM-RS of the first PDSCH is used to demodulate the first PDSCH.

[0128] As an embodiment, the DM-RS of the first PDSCH is used for channel estimation when receiving the first PDSCH.

[0129] As an embodiment, the DM-RS of the first PDSCH is used for coherent demodulation when receiving the first PDSCH.

[0130] As an embodiment, the DM-RS of the first PDSCH is used for receiving the first PDSCH.

[0131] As an embodiment, the DM-RS of the first PDSCH is configured for the first PDSCH.

[0132] As an embodiment, the first PDSCH is any PDSCH of the first node.

[0133] As an embodiment, the first PDSCH is a specific PDSCH of the first node.

[0134] As a sub-embodiment of this embodiment, the first signaling configures the first PDSCH.

[0135] As a sub-embodiment of this embodiment, the network may optimize the configuration of the first PDSCH, for example, the services carried by the first PDSCH.

[0136] As an embodiment, the DM-RS of the first PDSCH is a signal.

[0137] As an embodiment, the act of receiving the DM-RS of the first PDSCH on the active BWP includes performing baseband processing.

[0138] As an embodiment, the act of receiving the DM-RS of the first PDSCH on the active BWP includes performing signal amplification.

[0139] As an embodiment, the act of receiving the DM-RS of the first PDSCH on the active BWP includes performing signal filtering.

[0140] As an embodiment, the act of receiving the DM-RS of the first PDSCH on the active BWP includes estimating a power of a signal.

[0141] As an embodiment, the act of receiving the DM-RS of the first PDSCH on the active BWP includes performing channel estimation.

[0142] As an embodiment, the behavior of receiving the DM-RS of the first PDSCH on the active BWP includes receiving the DM-RS of the first PDSCH using spatial parameters of the first SS / PBCH block; the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0143] As an embodiment, the first PDSCH is transmitted on the active BWP.

[0144] As an embodiment, the DM-RS of the first PDSCH and the first SS / PBCH block are associated with the same PCI.

[0145] As an embodiment, the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block and is associated with the same PCI includes: the DM-RS of the first PDSCH is generated by the same PCI.

[0146] As an embodiment, the meaning of the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block with the same PCI includes: the pseudo-random sequence for generating the DM-RS of the first PDSCH is initialized by the same PCI.

[0147] As an embodiment, the meaning of the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block with the same PCI includes: initialization of the pseudo-random sequence for generating the DM-RS of the first PDSCH depends on the same PCI.

[0148] As an embodiment, the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block and is associated with the same PCI includes: the same PCI is used to generate the first SS / PBCH block.

[0149] As an embodiment, the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block and the same PCI means that the same PCI is used to generate at least one synchronization signal included in the first SS / PBCH block.

[0150] As an embodiment, the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block and the same PCI means that the same PCI has a mapping relationship with at least one synchronization signal included in the first SS / PBCH block.

[0151] As an embodiment, the meaning of the sentence that the DM-RS of the first PDSCH is associated with the first SS / PBCH block and the same PCI includes: the first SS / PBCH indicates the same PCI.

[0152] As a sub-embodiment of this embodiment, the PSS and / or SSS included in the first SS / PBCH indicates the same PCI.

[0153] As an embodiment, the sentence that the DM-RS of the first PDSCH and the first SS / PBCH block are associated with the same PCI includes: the DM-RS of the first PDSCH and the first SS / PBCH are sent by the cell identified by the same PCI.

[0154] As an embodiment, the sentence that the DM-RS of the first PDSCH and the first SS / PBCH block are associated with the same PCI includes: the DM-RS of the first PDSCH and the first SS / PBCH belong to the cell identified by the same PCI.

[0155] As an embodiment, the first signaling implicitly indicates whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0156] As an embodiment, when the first signaling does not explicitly indicate that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0157] As an embodiment, when the first signaling does not explicitly indicate that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0158] As an embodiment, when the first signaling does not explicitly indicate the TCI state of the first PDSCH, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0159] As an embodiment, when the first signaling indicates the TCI state of the first PDSCH, the first signaling explicitly indicates that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0160] As an embodiment, when the first signaling indicates the TCI state of the first PDSCH, if the first signaling does not explicitly indicate that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, then the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0161] As an embodiment, when the first signaling does not explicitly indicate the downlink or joint TCI state of the first PDSCH, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0162] As an embodiment, when the first signaling indicates the downlink or joint TCI state of the first PDSCH, the first signaling explicitly indicates that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0163] As an embodiment, when the first signaling indicates the downlink or joint TCI state of the first PDSCH, if the first signaling does not explicitly indicate that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, then the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0164] As an embodiment, the sentence "the first signaling implicitly indicates whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block" means that the first signaling does not explicitly indicate the type of semi-co-location of the DM-RS of the first PDSCH with the first SS / PBCH block.

[0165] As an embodiment, the first SS / PBCH block is not associated with SIB1 (system information block 1).

[0166] As an embodiment, the SIB1 defines the scheduling of other system information blocks and includes information required for initial access; SIB1 is also called the remaining minimum system information.

[0167] As an embodiment, SIB1 is necessary for accessing the system.

[0168] As an embodiment, SIB1 indicates the identity of the cell.

[0169] As a sub-embodiment of this embodiment, the identity of the cell is not a physical cell identity (PCI).

[0170] As a sub-embodiment of this embodiment, the identity of the cell is a global cell identity.

[0171] As an embodiment, the sentence that the first SS / PBCH block is not associated with SIB1 means or includes: the first SS / PBCH indication is not associated with SIB1.

[0172] As an embodiment, the sentence that the first SS / PBCH block is not associated with SIB1 means or includes: the first SS / PBCH does not include information required to receive SIB1.

[0173] As an embodiment, the sentence that the first SS / PBCH block is not associated with SIB1 means or includes: the first SS / PBCH indicates that SIB1 is not supported.

[0174] As an embodiment, the sentence that the first SS / PBCH block is not associated with SIB1 means or includes: SIB1 cannot be obtained according to the first SS / PBCH.

[0175] As an embodiment, the sentence that the first SS / PBCH block is not associated with SIB1 means or includes: the first SS / PBCH does not define a cell.

[0176] As an embodiment, the RS (reference signal) resources indicated by the TCI state configured for the first PDSCH are not semi-co-located with the first SS / PBCH block.

[0177] As a sub-embodiment of this embodiment, the RS resources indicated by the TCI state configured for the first PDSCH include SS / PBCH resources.

[0178] As a sub-embodiment of this embodiment, the RS resources indicated by the TCI state configured for the first PDSCH include CSI-RS (channel state information-RS, channel state information reference signal) resources.

[0179] As a sub-embodiment of this embodiment, the RS resources indicated by the TCI state configured for the first PDSCH do not include the first SS / PBCH block.

[0180] As an embodiment, when the first signaling is used to determine that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the DM-RS of the first PDSCH is type D semi-co-located with the first SS / PBCH block.

[0181] As an embodiment, the first PDSCH carries DRB (data radio bearer).

[0182] As an embodiment, the first PDSCH carries MRB (multicast broadcast service radiobearer).

[0183] As an embodiment, the first PDSCH carries information related to the first SS / PBCH or to a transmitter of the first SS / PBCH.

[0184] As an embodiment, the first PDSCH transmits a signal used for positioning.

[0185] As an embodiment, the first PDSCH transmits high priority services, high reliability services, or emergency services.

[0186] As an embodiment, the first signaling does not support that the first SS / PBCH block belongs to any BWP other than the active BWP.

[0187] Example 2

[0188] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in the attached Figure 2 shown.

[0189] Attached Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). 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 (transmitting receiving node), or some other suitable term. gNB 203 provides an access point to 5GC / EPC 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term.gNB203 is connected to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0190] As an embodiment, the first node in the present application is UE201.

[0191] As an embodiment, the base station of the second node in the present application is gNB203.

[0192] As an embodiment, the wireless link from the UE201 to the NR Node B is an uplink.

[0193] As an embodiment, the wireless link from the NR Node B to UE201 is a downlink.

[0194] As an embodiment, the UE 201 supports relay transmission.

[0195] As an embodiment, the UE 201 includes a mobile phone.

[0196] As an embodiment, the UE 201 is a vehicle including a car.

[0197] As an embodiment, the gNB203 is a macrocellular base station.

[0198] As an embodiment, the gNB203 is a micro cell base station.

[0199] As an embodiment, the gNB203 is a picoCell base station.

[0200] As an embodiment, the gNB203 is a flying platform device.

[0201] As an embodiment, the gNB203 is a satellite device.

[0202] Example 3

[0203] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a first node (UE, satellite or aircraft in gNB or NTN) and a second node (satellite or aircraft in gNB, UE or NTN), or between two UEs is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first node and the second node and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first node between the second node. 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. 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 nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) 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 node and the first node. The PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for processing the signaling protocol of the PC5 interface. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first node and the second node 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 the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. SRB can be regarded as a service or interface provided by the PDCP layer to a higher layer, such as the RRC layer. In the NR system, SRBs include SRB1, SRB2, SRB3, and SRB4 when it comes to sidelink communication, which are used to transmit different types of control signaling. SRB is a bearer between the UE and the access network, and is used to transmit control signaling including RRC signaling between the UE and the access network. SRB1 has special significance for the UE. After each UE establishes an RRC connection, there will be SRB1 for transmitting RRC signaling. Most of the signaling is transmitted through SRB1. If SRB1 is interrupted or unavailable, the UE must perform RRC reconstruction. SRB2 is generally only used to transmit NAS signaling or signaling related to security. The UE may not configure SRB3. Except for emergency services, the UE must establish an RRC connection with the network for subsequent communication. Although not shown, the first node may have several upper layers above the L2 layer 355. In addition, it also includes a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., remote UE, server, etc.). A protocol sublayer may also be referred to as a protocol layer.

[0204] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0205] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0206] As an embodiment, the first signaling is generated in RRC306 or PHY301 or MAC302.

[0207] As an embodiment, the first PDSCH is generated in PHY301.

[0208] As an embodiment, the DM-RS of the first PDSCH is generated in PHY301.

[0209] As an embodiment, the first SS / PBCH is generated in PHY301.

[0210] As an embodiment, the first auxiliary information is generated in RRC30.

[0211] Example 4

[0212] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0213] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, and may optionally also include a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0214] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receiving processor 470 , a transmitting processor 416 , and may optionally also include a multi-antenna receiving processor 472 , a multi-antenna transmitting processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0215] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, the upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 (Layer-2) layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for the retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it 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 a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0216] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. 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, wherein 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 spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second 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 the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0217] In the transmission from the first communication device 450 to the second communication device 410, at the first 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 the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second 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 spatial 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.

[0218] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives 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 the L1 layer. The controller / processor 475 implements the L2 layer 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. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0219] As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: receives a first signaling, the first signaling indicating a first SS / PBCH block; the frequency domain position of the first SS / PBCH block is outside the active BWP; receives the DM-RS of the first PDSCH on the active BWP; wherein the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0220] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first signaling, wherein the first signaling indicates a first SS / PBCH block; the frequency domain position of the first SS / PBCH block is outside the active BWP; receiving the DM-RS of the first PDSCH on the active BWP; wherein the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0221] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0222] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0223] As an embodiment, the first communication device 450 is a UE.

[0224] As an embodiment, the first communication device 450 is a vehicle-mounted terminal.

[0225] As an embodiment, the second communication device 450 is a relay.

[0226] As an embodiment, the second communication device 410 is a satellite.

[0227] As an embodiment, the second communication device 410 is an aircraft.

[0228] As an embodiment, the second communication device 410 is a base station.

[0229] As an embodiment, the receiver 454 (including the antenna 452, the receiving processor 456 and the controller / processor 459) is used to receive the first signaling in the present application.

[0230] As an embodiment, the receiver 454 (including the antenna 452, the receiving processor 456 and the controller / processor 459) is used to receive the first PDSCH in the present application.

[0231] As an embodiment, the receiver 454 (including the antenna 452, the receiving processor 456 and the controller / processor 459) is used to receive the DM-RS of the first PDSCH in the present application.

[0232] As an embodiment, the receiver 454 (including the antenna 452, the receiving processor 456 and the controller / processor 459) is used to receive the first SS / PBCH in the present application.

[0233] As an embodiment, the transmitter 454 (including the antenna 452, the transmission processor 468 and the controller / processor 459) is used to send the first auxiliary information in the present application.

[0234] Example 5

[0235] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 Attached Figure 5 In the example, U01 corresponds to the first node of the present application, and U02 corresponds to the second node of the present application. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application, wherein the steps in F51 are optional.

[0236] for First node U01 , receiving the first signaling in step S5101; receiving the DM-RS of the first PDSCH in step S5102; receiving the first PDSCH in step S5103; and sending the first auxiliary information in step S5104.

[0237] for First node U02 , sending the first signaling in step S5201; sending the DM-RS of the first PDSCH in step S5202; sending the first PDSCH in step S5203; receiving the first auxiliary information in step S5204.

[0238] In embodiment 5, the first signaling indicates a first SS / PBCH block; the frequency domain position of the first SS / PBCH block is outside the active BWP; wherein, the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0239] As an embodiment, the first node U01 is a UE, and the second node U02 is a service cell or a cell group of the first node U01.

[0240] As an embodiment, the first node U01 is a UE, and the second node U02 is a base station serving the first node U01.

[0241] As an embodiment, the first node U01 is a UE, and the second node U02 is the SpCell of the first node U01 or a base station corresponding to the SpCell.

[0242] As an embodiment, the first node U01 is a UE, and the second node U02 is the PCell of the first node U01 or a base station corresponding to the PCell.

[0243] As an embodiment, the interface between the first node U01 and the second node U02 is a Uu interface.

[0244] As an embodiment, step S5101 precedes step S5102.

[0245] As an embodiment, step S5102 precedes step S5103.

[0246] As an embodiment, step S5103 precedes step S5104.

[0247] As an embodiment, the first node U01 receives a first signaling, the first signaling indicates a first SS / PBCH block, and the frequency domain position of the first SS / PBCH block is outside the active BWP; the first node U01 receives the DM-RS of the first PDSCH on the active BWP; the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and the first signaling indicates that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0248] As a sub-embodiment of this embodiment, when the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the first node U01 receives the DM-RS of the first PDSCH using spatial parameters of the first SS / PBCH block.

[0249] As a sub-embodiment of this embodiment, the first node U01 demodulates the first PDSCH using the DM-RS of the first PDSCH.

[0250] As an embodiment, the first node U01 receives a first signaling, the first signaling indicates a first SS / PBCH block, and the frequency domain position of the first SS / PBCH block is outside the active BWP; the first node U01 receives the DM-RS of the first PDSCH on the active BWP; the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and the first signaling indicates that the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located only when the TCI state of the first PDSCH is not configured.

[0251] As a sub-embodiment of this embodiment, when the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the first node U01 receives the DM-RS of the first PDSCH using spatial parameters of the first SS / PBCH block.

[0252] As a sub-embodiment of this embodiment, the first node U01 demodulates the first PDSCH using the DM-RS of the first PDSCH.

[0253] As an embodiment, the first node U01 receives a first signaling, the first signaling indicates a first SS / PBCH block, and the frequency domain position of the first SS / PBCH block is outside the active BWP; the first node U01 receives the DM-RS of the first PDSCH on the active BWP; the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and the first signaling indicates that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0254] As a sub-embodiment of this embodiment, the first signaling indicates that the DM-RS of the first PDSCH is semi-co-located with a reference signal outside the first SS / PBCH block.

[0255] As a sub-embodiment of this embodiment, the first node U01 receives the DM-RS of the first PDSCH using the spatial parameters of the reference signal outside the first SS / PBCH block.

[0256] As a sub-embodiment of this embodiment, the first node U01 demodulates the first PDSCH using the DM-RS of the first PDSCH.

[0257] As an embodiment, the first node U01 may also send a confirmation for the first signaling.

[0258] As an embodiment, the spatial parameters include spatial reception parameters.

[0259] As an embodiment, the spatial parameters include spatial filter parameters.

[0260] As an embodiment, the second node U02 may indicate the resources occupied by the DM-RS of the first PDSCH in a dynamic manner, for example, by sending DCI (downlink control information).

[0261] As an embodiment, the first node U01 receives the DM-RS of the first PDSCH according to an instruction of a PDCCH (physical downlink control channel).

[0262] As an embodiment, the first PDSCH and the DM-RS of the first PDSCH are multiplexed or interleaved within a physical resource block.

[0263] As an embodiment, the DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain.

[0264] As a sub-embodiment of this embodiment, the DM-RS of the first PDSCH and the first SS / PBCH block completely overlap in the time domain.

[0265] As a sub-embodiment of this embodiment, the DM-RS of the first PDSCH and the first SS / PBCH block have at least one symbol overlap in the time domain.

[0266] As a sub-embodiment of this embodiment, at least one symbol occupied by the DM-RS of the first PDSCH overlaps with a symbol occupied by the first SS / PBCH in the time domain.

[0267] As a sub-embodiment of this embodiment, at least one symbol occupied by the DM-RS of the first PDSCH belongs to the symbol occupied by the first SS / PBCH.

[0268] As a sub-embodiment of this embodiment, the symbols occupied by the DM-RS of the first PDSCH include at least one symbol occupied by the first SS / PBCH.

[0269] As an embodiment, the first node U01 receives the first PDSCH.

[0270] As an embodiment, the first node U01 does not correctly receive the first PDSCH.

[0271] As an embodiment, the first node U01 does not detect the first PDSCH.

[0272] As a sub-embodiment of this embodiment, the first node U01 does not detect the first PDSCH on the PRB indicated by the PDCCH.

[0273] As a sub-embodiment of this embodiment, the first node U01 receives the DM-RS of the first PDSCH on the PRB indicated by the PDCCH.

[0274] As an embodiment, when the first PDSCH and the DM-RS of the first PDSCH are multiplexed together, steps S5102 and S5103 may have no obvious order, that is, the first PDSCH and the DM-RS of the first PDSCH may be processed as a whole when received.

[0275] As an embodiment, the first auxiliary information indicates which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling have performed link quality assessment.

[0276] As a sub-embodiment of this embodiment, the first SS / PBCH block is one SS / PBCH block among the multiple SS / PBCH blocks indicated by the first signaling.

[0277] As an embodiment, the multiple SS / PBCH blocks indicated by the first signaling all belong to outside the active BWP in the frequency domain.

[0278] As an embodiment, at least one SS / PBCH block among the multiple SS / PBCH blocks indicated by the first signaling belongs to an active BWP in the frequency domain.

[0279] As an embodiment, the link quality assessment includes radio link monitoring (RLM).

[0280] As an embodiment, the link quality assessment includes beam failure detection (BFD).

[0281] As an embodiment, the link quality assessment includes beam management.

[0282] As an embodiment, the first auxiliary information indicates which link quality assessment is performed on which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling.

[0283] As an embodiment, the first node U01, according to its own capability, arbitrarily selects at least one SS / PBCH from the multiple SS / PBCHs indicated by the first signaling to perform link quality assessment.

[0284] As an embodiment, the first node U01, according to its own capability, selects an SS / PBCH from a plurality of SS / PBCHs indicated by the first signaling that will not affect the signal received at the active BWP to perform link quality assessment.

[0285] As an embodiment, the first node U01, according to its own capability, selects the SS / PBCH closest to the active BWP in the frequency domain from among the multiple SS / PBCHs indicated by the first signaling to perform link quality assessment.

[0286] As an embodiment, the first auxiliary information includes an index or identity of the SS / PBCH block indicated by the first signaling.

[0287] As an embodiment, the first auxiliary information indicates which candidate SS / PBCH blocks have performed what kind of link quality assessment from the SS / PBCH blocks indicated by the first signaling.

[0288] As an embodiment, the first auxiliary information indicates, through a bit map, which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling perform which link quality assessment.

[0289] As an embodiment, the benefits of the above method include that it can let the network know the SS / PBCH based on which the first node U01 performs link quality assessment, which is beneficial to subsequent network optimization.

[0290] As an embodiment, the entire signaling process may also include the first node U01 sending a first PUSCH and a DM-RS of the first PUSCH to the second node U02.

[0291] As a sub-embodiment of this embodiment, the sending is performed after receiving the first signaling.

[0292] Example 6

[0293] Embodiment 6 illustrates a schematic diagram of a first SS / PBCH according to an embodiment of the present application, as shown in the attached figure. Figure 6 shown.

[0294] As an example, Figure 6 The horizontal axis in is the number of the OFDM symbol, abbreviated as symbol, such as #0, #1, #2, #3, OFDM symbol; Figure 6 The vertical axis is the subcarrier number, from #0 to #239.

[0295] As an example, Figure 6 The horizontal axis represents the time domain, and the vertical axis represents the frequency domain.

[0296] As an embodiment, the synchronization signal and PBCH block, i.e., SS / PBCH block or SS-Block or SSB, include a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), each occupying 1 symbol and, for example, 127 subcarriers; PBCH occupies 3 symbols and 240 subcarriers, but some parts are reserved for SSS; the time domain position of SSB in a half frame is determined by the subcarrier spacing; the period of the half frame for transmitting SSB is configured by the network; within a half frame, different SSBs can be sent in different spatial directions, i.e., using different beams; multiple SSBs can be transmitted in the entire frequency domain interval; the PCI of SSBs sent at different frequency domain positions can be different, that is, SSBs at different frequency domain positions can have different PCIs; when an SSB is associated with SIB1, the SSB is called a cell defining SSB (CD-SSB); a PCell is always associated with a CD-SSB on a frequency domain grid.

[0297] As a sub-embodiment of this embodiment, the first SS / PBCH is applicable to the above definition.

[0298] As a sub-embodiment of this embodiment, the first SS / PBCH may be a CD-SSB or may not be a CD-SSB.

[0299] As an embodiment, the reception timing of a PBCH, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) is on consecutive symbols and constitutes an SS / PBCH block; the transmission power of SSS, PBCH DM-RS and PBCH data is the same; the transmission power of SSS and PSS in an SS / PBCH block can be equal or differ by 3dB.

[0300] As an embodiment, the index of the first symbol of the half-frame including the SS / PBCH block is determined according to the subcarrier spacing of the SS / PBCH block.

[0301] As an embodiment, the definitions of PBCH, PSS and SSS may further refer to 3GPP TS38.211 protocol.

[0302] As an embodiment, the first SS / PBCH block and the DM-RS of the first PDSCH belong to the same cell, that is, the first SS / PBCH block is not an SS / PBCH block of a neighboring cell.

[0303] As an embodiment, the DM-RS of the first SS / PBCH block and the first PDSCH are associated with the same PCI.

[0304] As a sub-embodiment of this embodiment, the benefits of associating the same PCI include: easier implementation.

[0305] As an embodiment, relative to the PCI associated with the DM-RS of the first PDSCH, the first SS / PBCH block is associated with an additional PCI.

[0306] As a sub-embodiment of this embodiment, the benefit of associating the first SS / PBCH block with an additional PCI is that it can be more flexible.

[0307] As an embodiment, the PBCH may also indicate whether there is no associated SIB1.

[0308] As an embodiment, the first SS / PBCH belongs to the bandwidth supported by the first node.

[0309] Example 7

[0310] Example 7 illustrates a schematic diagram of a BWP according to an embodiment of the present application, as shown in the attached Figure 7 shown.

[0311] As an embodiment, the UE may be configured with one or more bandwidth parts (BWP) on a given component carrier, only one of these configured BWPs being active at the same time, namely the active BWP; the active BWP defines the working bandwidth of the UE within the working bandwidth of the cell; for initial access, the UE uses the initial BWP obtained from the system information before being further configured.

[0312] As an embodiment, through bandwidth adaptation (BA), the receiving and transmitting bandwidths of a UE may not be the same as the bandwidth of the cell and may be adjustable: that is, the width of the working frequency band may be changed, and the position of the frequency domain may also be adjusted; a subset of the total bandwidth of a cell constitutes a BWP, and bandwidth adaptation is achieved by configuring a BWP for the UE and indicating which of the BWPs configured by the UE is currently active.

[0313] As an embodiment, after being configured with a BA, a UE in an RRC connected state monitors a paging channel using a common search space only on an active BWP.

[0314] As an embodiment, after being configured with BA, the UE obtains SI (system information) only on the active BWP.

[0315] As an embodiment, when the BA is configured, the first node monitors the PDCCH (physical downlink control channel) only on the active BWP, and does not need to monitor the PDCCH on the entire downlink frequency of the cell;

[0316] As an example, Figure 7 Three BWPs are shown, but the method proposed in this application is not limited to the number of BWPs.

[0317] As an example, Figure 7 The three BWPs shown are BWP 1 ,BWP 2 and BWP 3 , occupying 40MHz, 10MHz, and 20MHz bandwidths and respective subcarrier spacings. The method proposed in this application does not limit the specific width of BWP.

[0318] As an example, Figure 7 BWP of the 3 BWPs shown 1 ,BWP 2 and BWP 3Only one of the BWPs can be active at a time.

[0319] As an embodiment, the bandwidth supported by the first node is wider than the active BWP.

[0320] As an embodiment, the bandwidth supported by the first node is not wider than the active BWP, but the bandwidth supported by the first node includes the bandwidth occupied by the first SS / PBCH block and the DM-RS of the first PDSCH.

[0321] As an embodiment, if the active BWP of the first node is Figure 7 The first SS / PBCH is one of the three BWPs in Figure 7 The frequency domain part other than the one of the three BWPs in , for example, may belong to other BWPs.

[0322] As an embodiment, the benefits of the above method include: the DM-RS of the first PDSCH can be received more flexibly by utilizing the SS / PBCH blocks other than the active BWP.

[0323] Example 8

[0324] Embodiment 8 illustrates a schematic diagram of a semi-co-location type according to an embodiment of the present application, as shown in the attached Figure 8 shown.

[0325] As an example, Figure 8 The quasi co-location (QCL) of antenna ports is shown.

[0326] As an embodiment, the DM-RS of the first PDSCH is or corresponds to or is identified or is considered to be an antenna port.

[0327] As an embodiment, the higher layer includes a MAC layer or an RRC layer.

[0328] As an example, even if two signals are transmitted from two different antennas, the channels experienced by the two signals may still have many common large-scale properties. For example, the channels experienced by two signals transmitted from two different antenna ports, corresponding to ports of different physical antennas at the same site, usually have the same or at least similar large-scale properties, even if the details are different, for example, in terms of Doppler spread / shift, average delay spread and average gain; it can also be expected that these channels will introduce similar average delays; for the receiver, knowing that the radio channels corresponding to two different antenna ports have similar large-scale properties, these properties can be exploited, for example, to set parameters for channel estimation; in the case of single-antenna transmission, this is simple, but NR widely supports multi-antenna transmission, beamforming and simultaneous transmission from multiple geographically separated sites; in these cases, the large-scale properties of different antenna ports may be different; therefore, the concept of QCL with respect to antenna ports is proposed; for example, for the DM-RS of PDSCH, if it has a QCL relationship with a certain SS / PBCH block, the receiver can receive the DM-RS of PDSCH based on the beam direction for this SS / PBCH, or similarly, for example, the uplink signal is transmitted with respect to the beam direction of a certain SS / PBCH with a QCL relationship.

[0329] As an embodiment, the UE may be configured with a list of up to M TCI-State configurations by a higher layer PDSCH-Config parameter to decode the PDSCH based on the detected DCI of the PDCCH for the UE; for a given serving cell, M depends on the capabilities of the UE; each TCI-State includes a QCL relationship for configuring one or two downlink reference signals and a DM-RS port for the PDSCH; the QCL relationship for the first downlink reference signal is configured by a higher layer parameter qcl-Type1; the QCL relationship for the second downlink reference signal is configured by a higher layer parameter qcl-Type2; for the case of two downlink reference signals, the QCL type is different, regardless of whether the reference is the same downlink reference signal or different downlink reference signals; the QCL type corresponding to each downlink reference signal is indicated by the qcl-Type parameter in the QCL-Info provided by the higher layer; the QCL type includes the attached Figure 8 The four types shown are typeA, typeB, typeC, and typeD.

[0330] As an embodiment, when the first signaling is used to determine that the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the DM-RS of the first PDSCH is type D semi-co-located with the first SS / PBCH block.

[0331] As a sub-embodiment of this embodiment, the active BWP does not include a SS / PBCH block semi-co-located with the DM-RS type D of the first PDSCH.

[0332] As a sub-embodiment of this embodiment, the active BWP does not include a CSI-RS that is semi-co-located with the DM-RS type D of the first PDSCH.

[0333] As an embodiment, TCI-State includes the identity of the TCI state.

[0334] As an embodiment, TCI-State includes QCL information.

[0335] As an embodiment, optionally, TCI-State includes a PCI index.

[0336] As an embodiment, the optional TCI-State indicates a reference signal of a path loss reference.

[0337] As an embodiment, the TCI-State indicates uplink power control.

[0338] As an embodiment, the QCL information (QCL-info) includes at least one of a cell index and a BWP identity.

[0339] As an embodiment, the QCL information indicates a reference signal or indicates a reference signal resource.

[0340] As an embodiment, the reference signal indicated by the QCL information is CSI-RS or SSB.

[0341] As an embodiment, the reference signal indicated by the QCL information is a CSI-RS identity or an SSB index.

[0342] As an embodiment, the reference signal resource indicated by the QCL information is a CSI-RS resource or an SSB resource.

[0343] As an embodiment, the QCL information includes the QCL type.

[0344] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the first signaling does not configure the TCI state (TCI-State) of the first PDSCH and does not configure the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures the TCI state of the first PDSCH or configures at least one of the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0345] As a sub-embodiment of this embodiment, the first node is not configured with the TCI state (TCI-State) of the first PDSCH and is not configured with the downlink or joint TCI state (DLorJointTCIState).

[0346] As a sub-embodiment of this embodiment, when the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the type of semi-co-location of the DM-RS of the first PDSCH with the first SS / PBCH block is typeD.

[0347] As a sub-embodiment of this embodiment, the phrase that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block means that the first node can assume that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0348] As a sub-embodiment of this embodiment, the phrase "the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block" means that whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block is not defined.

[0349] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the first signaling does not configure the CSI-RS resources on the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures the CSI-RS on the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0350] As a sub-embodiment of this embodiment, the first node is not configured with CSI-RS resources on the active BWP.

[0351] As a sub-embodiment of this embodiment, when the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block, the type of semi-co-location of the DM-RS of the first PDSCH with the first SS / PBCH block is typeD.

[0352] As a sub-embodiment of this embodiment, the phrase that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block means that the first node can assume that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0353] As a sub-embodiment of this embodiment, the phrase "the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block" means that whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block is not defined.

[0354] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when receiving the first SS / PBCH does not require suspending reception of the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when receiving the first SS / PBCH requires suspending reception of the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0355] As a sub-embodiment of this embodiment, the phrase "no need to suspend reception of the active BWP" means or includes: the first node needs a gap to receive the first SS / PBCH.

[0356] As a sub-embodiment of this embodiment, the phrase no need to suspend reception of the active BWP means or includes: the first SS / PBCH block is outside the bandwidth supported by the first node, and the bandwidth supported by the first node includes the active BWP.

[0357] As a sub-embodiment of this embodiment, the phrase that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block means that the first node can assume that the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0358] As a sub-embodiment of this embodiment, the phrase "the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block" means that whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block is not defined.

[0359] Example 9

[0360] Embodiment 9 illustrates a schematic diagram of a cell according to an embodiment of the present application, as shown in the attached Fig. 9 shown.

[0361] Attached Fig. 9 field1,field2,field11,field12,field21 are all fields.

[0362] The format of RRC messages is based on the relevant specifications of ISO ASN.1.

[0363] Attached Fig. 9 InformationElement1, InformationElement2, InformationElement11, and InformationElement12 are all RRC IEs.

[0364] As an embodiment, an RRC message includes one or more RRC IE (Information Element), such as Fig. 9 RRCMessage-IEs in.

[0365] As an example, Fig. 9 The RRCMessage-IEs in is an RRC IE.

[0366] As an example, Fig. 9 The RRCMessage-IEs in is any IE of an RRC message.

[0367] As an embodiment, an RRC IE includes one or more fields, such as Fig. 9 Field1 and field2 included in the RRCMessage-IEs, such as Information.

[0368] As an embodiment, the value of a field in the RRC message may be an RRC IE, such as Fig. 9 In the example, the value of field1 is InformationElement1.

[0369] As an embodiment, a field in an RRC message carries or carries an RRC IE, such as an attached Fig. 9 In the example, field1 hosts or carries InformationElement1.

[0370] As an embodiment, a field in an RRC message corresponds to an RRC IE, such as Fig. 9 In the example, field1 corresponds to InformationElement1.

[0371] As an embodiment, in an RRC message, different fields may correspond to or carry or take the value of the same RRC IE, for example, field11 and field21 are both set to InformationElement11.

[0372] As an embodiment, the IE in the RRC message may include one or more layers.

[0373] As an embodiment, the IE in the RRC message may include one or more sub-IEs.

[0374] As an embodiment, the IE in the RRC message may include one or more sub-IEs, and / or deeper-level IEs.

[0375] As an embodiment, the IE in the RRC message may include one or more subdomains and / or granddomains, for example, field1 is a subitem of RRCMessage-IEs, and field11 is a granditem of RRCMessage-IE; the subdomain of an IE in an RRC message may also include its own subdomain or granddomain, and so on.

[0376] As an embodiment, the sub-item of an RRC IE is a first-level item included in the RRC IE.

[0377] As an embodiment, the grandchildren of an RRC IE are second-level items included in the RRC IE.

[0378] As an embodiment, the sub-item of the grandchild item of an RRC IE is a third-level item included in the RRC IE.

[0379] As an embodiment, whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the IE indicating the first SS / PBCH block in the first signaling. When the first SS / PBCH block is indicated by the first IE of the first signaling, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block; when the first SS / PBCH block is indicated by the second IE of the first signaling, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0380] As an example, Fig. 9 The first IE applicable to the first signaling.

[0381] As an example, Fig. 9 The second IE is applicable to the first signaling.

[0382] As an embodiment, the first IE of the first signaling and the second IE of the first signaling are both used to configure wireless link monitoring.

[0383] As an embodiment, the first IE of the first signaling and the second IE of the first signaling are both used to configure beam failure detection.

[0384] As an embodiment, one of the first IE of the first signaling and the second IE of the first signaling is unicast and the other is broadcast.

[0385] As an embodiment, the first IE of the first signaling includes a reference signal within the active BWP; and the second IE of the first signaling does not include a reference signal within the active BWP.

[0386] As an embodiment, one of the first IE of the first signaling and the second IE of the first signaling includes a TCI state, and the other does not include a TCI state.

[0387] As an embodiment, the first IE of the first signaling includes a TCI status; the second IE of the first signaling does not include a TCI status.

[0388] As an embodiment, one of the first IE of the first signaling and the second IE of the first signaling is PDSCH-config, and the other is not.

[0389] As an embodiment, the first IE of the first signaling and the second IE of the first signaling are IEs of different levels in the first signaling.

[0390] As an embodiment, one of the first IE of the first signaling and the second IE of the first signaling is BWP-DownlinkDedicated, and the other is not.

[0391] As an embodiment, the second IE of the first signaling belongs to reconfigurationWithSync, and the first IE of the first signaling does not belong to reconfigurationWithSync.

[0392] As an embodiment, determining whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH based on the first IE or the second IE of the first signaling is beneficial to determining the semi-co-location based on specific parameters, thereby obtaining better performance.

[0393] As an embodiment, the first IE and the second IE are sent in different ways.

[0394] As an embodiment, one of the first IE and the second IE is sent in a unicast manner, and the other is sent in a non-unicast manner.

[0395] As an embodiment, the first signaling is RRCReconfiguration, and at least one of the first IE and the second IE is an IE other than ssb-PositionsInBurst.

[0396] Example 10

[0397] Embodiment 10 illustrates a schematic diagram of a first signaling indicating a first SS / PBCH according to an embodiment of the present application, as shown in the attached figure. Fig.10 shown.

[0398] As an embodiment, the first signaling indicates the first SS / PBCH block from a system information block.

[0399] As an embodiment, the period of the first SS / PBCH block is a first period, and the period of the SS / PBCH block in the active BWP is a second period.

[0400] As a sub-embodiment of this embodiment, when the first period is smaller than the second period, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first period is not smaller than the second period, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0401] As a sub-embodiment of this embodiment, the first signaling indicates the period of the first SS / PBCH block.

[0402] As an embodiment, the first signaling indicates the frequency domain position of the first SS / PBCH block.

[0403] As an embodiment, the first signaling indicates the time domain position of the first SS / PBCH block.

[0404] As an embodiment, the first signaling indicates the period of the first SS / PBCH block.

[0405] As an embodiment, the first signaling indicates the subcarrier spacing of the first SS / PBCH block.

[0406] As an embodiment, the first signaling indicates the SS / PBCH block in the active BWP and the first SS / PBCH block in the same domain.

[0407] As a sub-embodiment of this embodiment, the same domain is a bitmap.

[0408] As a sub-embodiment of this embodiment, the same domain is a bitmap, and at least one most significant bit of the bitmap indicates the first SS / PBCH block, or at least one least significant bit of the bitmap indicates the first SS / PBCH block. As a sub-embodiment of this embodiment, the first signaling indicates the SS / PBCH block in the active BWP and the first SS / PBCH block in the same domain, which has the advantage of reusing existing signaling and simplifying implementation.

[0409] As an embodiment, the first signaling indicates the SS / PBCH block in the active BWP and the first SS / PBCH block in different domains.

[0410] As a sub-embodiment of this embodiment, the different domains are different bitmaps.

[0411] As a sub-embodiment of this embodiment, the advantage of the first signaling indicating the SS / PBCH block in the active BWP and the first SS / PBCH block in different domains is that flexibility can be increased.

[0412] As an embodiment, the first signaling indicates the first SS / PBCH block from ssb-PositionsInBurst.

[0413] As an embodiment, the first signaling indicates QCL information of the first SS / PBCH block and the DM-RS of the first PDSCH.

[0414] As an embodiment, the first signaling indicates the QCL type of the DM-RS of the first SS / PBCH block and the first PDSCH.

[0415] As an embodiment, the first node derives the index of the first SS / PBCH from other SS / PBCH blocks indicated by the first signaling.

[0416] As a sub-embodiment of this embodiment, the index of the other SS / PBCH blocks has a fixed interval with the index of the first SS / PBCH block.

[0417] As an embodiment, the first signaling indicates the index of the first SS / PBCH block.

[0418] As an embodiment, the QCL information of the TCI state of the first PDSCH indicated by the first signaling includes the index of the first SS / PBCH block.

[0419] As an embodiment, the QCL information of the TCI state of the first PDSCH indicated by the first signaling includes the BWP identity to which the first SS / PBCH block belongs, and the BWP identity is the identity of a BWP other than the active BWP.

[0420] As a sub-embodiment of this embodiment, the BWP other than the active BWP is a default BWP.

[0421] As a sub-embodiment of this embodiment, the BWP other than the active BWP is an initial BWP.

[0422] As a sub-embodiment of this embodiment, the QCL information of the TCI state of the first PDSCH indicated by the first signaling includes the cell identity of the first SS / PBCH block.

[0423] As a sub-embodiment of this embodiment, the QCL information of the TCI state of the first PDSCH indicated by the first signaling includes that the cell identity of the first SS / PBCH block is the identity of the sender of the first signaling.

[0424] As a sub-embodiment of this embodiment, the QCL information of the TCI state of the first PDSCH indicated by the first signaling does not include a cell identity.

[0425] As a sub-embodiment of this embodiment, the first node defaults that the cell of the first SS / PBCH block is the sender of the first signaling, that is, the current cell.

[0426] As a sub-embodiment of this embodiment, the advantage of the QCL information of the TCI state of the first PDSCH indicated by the first signaling including the BWP identity to which the first SS / PBCH block belongs is that it can be indicated in units of BWP, which saves more resources.

[0427] As an embodiment, the QCL information of the TCI state of the first PDSCH indicated by the first signaling does not include the BWP identity to which the first SS / PBCH block belongs, but only includes the frequency domain information of the first SS / PBCH block.

[0428] As a sub-embodiment of this embodiment, the advantages of the method proposed in this embodiment include: the first SS / PBCH can be indicated more flexibly, or the first SS / PBCH is not restricted by the BWP.

[0429] As an embodiment, the first signaling indicates

[0430] As an embodiment, the first signaling indicates whether the DM-RS of the first PDSCH has a semi-co-location relationship with the SS / PBCH block of the initial BWP.

[0431] As a sub-embodiment of this embodiment, the initial BWP is a BWP other than the active BWP.

[0432] As an embodiment, the first signaling indicates whether the DM-RS of the first PDSCH has a semi-co-location relationship with the SS / PBCH block of the default BWP.

[0433] As a sub-embodiment of this embodiment, the default BWP is a BWP other than the active BWP.

[0434] As a sub-embodiment of this embodiment, when the inactivity timer of the active BWP expires, the first node switches to the default BWP.

[0435] As an embodiment, the TCI state configured for the first PDSCH is applied to the active BWP.

[0436] As an embodiment, the sentence "whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling" includes: whether the semi-co-location relationship between the DM-RS of the first PDSCH and the first SS / PBCH block is in an active TCI state, or whether the active TCI state depends on the first signaling.

[0437] As an embodiment, the first signaling indicates the TCI states of multiple PDSCHs having typeD QCL relationships with SS / PBCH blocks, and the first SS / PBCH block is one of the multiple SS / PBCH blocks indicated by the first signaling.

[0438] As an embodiment, the first node is not configured with an SS / PBCH block having a type D semi-co-location with the DM-RS of the first PDSCH within the active BWP.

[0439] As a sub-embodiment of this embodiment, the first node is configured with a semi-co-located SS / PBCH block of type A, type B, or type C with the DM-RS of the first PDSCH within the active BWP.

[0440] As a sub-embodiment of this embodiment, the first SS / PBCH block and the DM-RS of the first PDSCH have a type D semi-co-location relationship.

[0441] As an embodiment, the first node is not configured with an SS / PBCH block having type A and type D semi-co-location with the DM-RS of the first PDSCH within the active BWP.

[0442] As a sub-embodiment of this embodiment, the first node is configured with a semi-co-located SS / PBCH block of type B or type C with the DM-RS of the first PDSCH within the active BWP.

[0443] As a sub-embodiment of this embodiment, the first SS / PBCH block and the DM-RS of the first PDSCH have a semi-co-location relationship.

[0444] As a sub-embodiment of this embodiment, the first SS / PBCH block and the DM-RS of the first PDSCH have a type A semi-co-location relationship.

[0445] As a sub-embodiment of this embodiment, the first SS / PBCH block and the DM-RS of the first PDSCH have a type D semi-co-location relationship.

[0446] As a sub-embodiment of this embodiment, the multiple TCI states of the first PDSCH indicated by the first signaling respectively include one of the multiple SS / PBCHs.

[0447] As a sub-embodiment of this embodiment, when the period of the first SS / PBCH block is the shortest one among the multiple SS / PBCHs, the TCI state corresponding to the first SS / PBCH is active; when the period of the first SS / PBCH block is not the shortest one among the multiple SS / PBCHs, the TCI state corresponding to the first SS / PBCH is not active.

[0448] As a sub-embodiment of this embodiment, when the period of the first SS / PBCH block is one of the multiple SS / PBCHs that is closest to the frequency domain resources occupied by the first PDSCH in the frequency domain, the TCI state corresponding to the first SS / PBCH is active; when the period of the first SS / PBCH block is not one of the frequency domain resources occupied by the first PDSCH in the frequency domain, the TCI state corresponding to the first SS / PBCH is not active.

[0449] As an embodiment, if the SS / PBCH block in the active BWP that is semi-co-located with the DM-RS of the first PDSCH of type D is not available, then the first SS / PBCH block indicated by the first signaling is semi-co-located with the DM-RS of the first PDSCH.

[0450] As a sub-embodiment of this embodiment, otherwise, the first SS / PBCH block is not semi-co-located with the DM-RS of the first PDSCH.

[0451] As an embodiment, the first signaling indicates that the SS / PBCH block within the active BWP that has typeD semi-co-location with the DM-RS of the first PDSCH is unavailable, then the first SS / PBCH block is semi-co-located with the DM-RS of the first PDSCH.

[0452] As a sub-embodiment of this embodiment, otherwise, the first SS / PBCH block is not semi-co-located with the DM-RS of the first PDSCH.

[0453] As an embodiment, if the first signaling does not indicate that an SS / PBCH block with typeD semi-co-location with the DM-RS of the first PDSCH is available within the active BWP, then the first SS / PBCH block is semi-co-located with the DM-RS of the first PDSCH.

[0454] As a sub-embodiment of this embodiment, otherwise, the first SS / PBCH block is not semi-co-located with the DM-RS of the first PDSCH.

[0455] As an embodiment, when typeD semi-co-location with the DM-RS of the first PDSCH within the active BWP is not available, the first SS / PBCH block indicated by the first signaling is semi-co-located with the DM-RS of the first PDSCH.

[0456] As a sub-embodiment of this embodiment, otherwise, the first SS / PBCH block is not semi-co-located with the DM-RS of the first PDSCH.

[0457] As an embodiment, when the first signaling indicates that typeD semi-co-location with the DM-RS of the first PDSCH within the active BWP is not available, the first SS / PBCH block is semi-co-located with the DM-RS of the first PDSCH.

[0458] As a sub-embodiment of this embodiment, otherwise, the first SS / PBCH block is not semi-co-located with the DM-RS of the first PDSCH.

[0459] As an embodiment, when the first signaling does not indicate that typeD semi-co-location with the DM-RS of the first PDSCH within the active BWP is available, the first SS / PBCH block is semi-co-located with the DM-RS of the first PDSCH.

[0460] As a sub-embodiment of this embodiment, otherwise, the first SS / PBCH block is not semi-co-located with the DM-RS of the first PDSCH.

[0461] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the DM-RS of the first PDSCH and the first SS / PBCH block configured by the first signaling overlap in the time domain, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; otherwise, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0462] As a sub-embodiment of this embodiment, overlapping in the time domain is beneficial for more accurate channel estimation through the first SS / PBCH block, thereby improving reception performance, which is worthwhile even if it may require a certain price.

[0463] Embodiment 11

[0464] Embodiment 11 illustrates a schematic diagram of whether the DM-RS of the first PDSCH and the first SS / PBCH are semi-co-located depending on the first time length according to an embodiment of the present application, as shown in the attached figure. Fig.11 shown.

[0465] As an embodiment, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block only within a first time length.

[0466] As an embodiment, the beginning of the first time length is the reception of the first signaling.

[0467] As an embodiment, the beginning of the first time length is the moment indicated by the first signaling.

[0468] As an embodiment, the beginning of the first time length is the reception of RRC signaling other than the first signaling.

[0469] As a sub-embodiment of this embodiment, the RRC signaling other than the first signaling indicates the TCI status of the first PDSCH.

[0470] As a sub-embodiment of this embodiment, the RRC signaling other than the first signaling is used for mobility management.

[0471] As an embodiment, the first signaling includes a unified TCI state.

[0472] As an embodiment, the first time length is configurable.

[0473] As an embodiment, the first time length is limited.

[0474] As an embodiment, the first time length is configured by the first signaling.

[0475] As an embodiment, the first time length is configured by an RRC signaling.

[0476] As an embodiment, the first time length is related to the beam.

[0477] As an embodiment, the first time length starts when a cell handover or a cell exchange is performed.

[0478] As an embodiment, the beginning of the first time length is a moment just after a cell handover or a cell exchange is performed.

[0479] As an embodiment, the start of the first time length depends on beam failure recovery.

[0480] As an embodiment, the start of the first time length depends on a link failure.

[0481] As an embodiment, the start of the first time length depends on mobility.

[0482] As an embodiment, the start of the first time length depends on the reconfiguration of the TCI state of the first PDSCH.

[0483] As a sub-embodiment of this embodiment, the reconfiguration of the TCI state of the first PDSCH includes configuring other TCI states of the first PDSCH.

[0484] As a sub-embodiment of this embodiment, the reconfiguration of the TCI state of the first PDSCH includes indicating that the DM-RS of the first PDSCH is semi-co-located with other reference signals or reference signal resources.

[0485] As a sub-embodiment of this embodiment, the reconfiguration of the TCI state of the first PDSCH includes indicating that the DM-RS of the first PDSCH is semi-co-located with a reference signal or reference signal resource other than the first SS / PBCH.

[0486] As an embodiment, the start of the first time length depends on the activation or deactivation of the TCI state of the first PDSCH.

[0487] As an embodiment, the TCI-state of the first PDSCH is indicated by the PDSCH-Config configuring the first PDSCH.

[0488] Example 12

[0489] Embodiment 12 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig.12 As shown in the attached Fig.12 In the embodiment 12, the processing device 1200 in the first node includes a first receiver 1201 and a first transmitter 1202.

[0490] A first receiver 1201 receives a first signaling, where the first signaling indicates a first SS / PBCH block; a frequency domain position of the first SS / PBCH block is outside an active BWP;

[0491] The first receiver 1201 receives a DM-RS of a first PDSCH on the active BWP;

[0492] The DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0493] As an embodiment, the DM-RS of the first PDSCH and the first SS / PBCH block are associated with the same PCI (physical cell ID).

[0494] As an embodiment, the first signaling implicitly indicates whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0495] As an embodiment, the first SS / PBCH block is not associated with SIB1.

[0496] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the first signaling does not configure the TCI state of the first PDSCH and does not configure the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures the TCI state of the first PDSCH or configures at least one of the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0497] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when receiving the first SS / PBCH does not require suspending reception of the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when receiving the first SS / PBCH requires suspending reception of the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0498] As an embodiment, whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on a first time length, and the first time length is related to semi-co-location.

[0499] As an embodiment, whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the IE indicating the first SS / PBCH block in the first signaling. When the first SS / PBCH block is indicated by the first IE of the first signaling, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block; when the first SS / PBCH block is indicated by the second IE of the first signaling, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

[0500] As an embodiment, the first transmitter 1202 sends first auxiliary information, where the first auxiliary information indicates which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling have performed link quality assessment;

[0501] The first SS / PBCH block is one of the multiple SS / PBCH blocks indicated by the first signaling.

[0502] As an embodiment, the first transmitter 1202 sends a first PUSCH and a DM-RS of a first PUSCH (physical uplink shared channel) on the active BWP;

[0503] The DM-RS of the first PUSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0504] As an embodiment, the first node is a user equipment (UE).

[0505] As an embodiment, the first node is a terminal supporting a large delay difference.

[0506] As an embodiment, the first node is a terminal supporting NTN.

[0507] As an embodiment, the first node is an aircraft or a ship.

[0508] As an embodiment, the first node is a mobile phone or a vehicle-mounted terminal.

[0509] As an embodiment, the first node is a helmet or glasses.

[0510] As an embodiment, the first node is an Internet of Things terminal or an industrial Internet of Things terminal.

[0511] As an embodiment, the first node is a device supporting low-latency and high-reliability transmission.

[0512] As an embodiment, the first receiver 1201 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Example 4.

[0513] As an embodiment, the first transmitter 1202 includes at least one of the antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, or data source 467 in Embodiment 4.

[0514] Embodiment 13

[0515] Embodiment 13 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig.13 As shown in the attached Fig.13 In the embodiment 13, the processing device 1300 in the first node includes a first receiver 1301 and a first transmitter 1302.

[0516] A first receiver 1301 receives a first signaling, where the first signaling indicates a first SS / PBCH block; a frequency domain position of the first SS / PBCH block is outside an active BWP;

[0517] The first transmitter 1302 sends a first PUSCH and a DM-RS of a first PUSCH (physical uplink shared channel) on the active BWP;

[0518] The DM-RS of the first PUSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0519] As an embodiment, the DM-RS of the first PUSCH and the first SS / PBCH block are associated with the same PCI (physical cell ID).

[0520] As an embodiment, the first signaling implicitly indicates whether the DM-RS of the first PUSCH is semi-co-located with the first SS / PBCH block.

[0521] As an embodiment, the first SS / PBCH block is not associated with SIB1.

[0522] As an embodiment, the sentence whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the first signaling does not configure the downlink or joint TCI state (DLorJointTCIState) on the active BWP and does not configure the uplink TCI state (UL-TCIState) on the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures at least one of the downlink or joint TCI state (DLorJointTCIState) and uplink TCI state (UL-TCIState) on the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

[0523] As an embodiment, the sentence whether the DM-RS of the first PUSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when receiving the first SS / PBCH does not require suspending reception of the active BWP, the DM-RS of the first PUSCH is semi-co-located with the first SS / PBCH block; when receiving the first SS / PBCH requires suspending reception of the active BWP, the DM-RS of the first PUSCH is not semi-co-located with the first SS / PBCH block.

[0524] As an embodiment, whether the DM-RS of the first PUSCH is semi-co-located with the first SS / PBCH block depends on a first time length, and the first time length is related to semi-co-location.

[0525] As an embodiment, whether the DM-RS of the first PUSCH is semi-co-located with the first SS / PBCH block depends on the IE indicating the first SS / PBCH block in the first signaling. When the first SS / PBCH block is indicated by the first IE of the first signaling, the DM-RS of the first PUSCH is not semi-co-located with the first SS / PBCH block; when the first SS / PBCH block is indicated by the second IE of the first signaling, the DM-RS of the first PUSCH is semi-co-located with the first SS / PBCH block.

[0526] As an embodiment, the first transmitter 1302 sends first auxiliary information, where the first auxiliary information indicates which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling have performed link quality assessment;

[0527] The first SS / PBCH block is one of the multiple SS / PBCH blocks indicated by the first signaling.

[0528] The first receiver 1301 receives a DM-RS of a first PDSCH on the active BWP;

[0529] The DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

[0530] As an embodiment, the first node is a user equipment (UE).

[0531] As an embodiment, the first node is a terminal supporting a large delay difference.

[0532] As an embodiment, the first node is a terminal supporting NTN.

[0533] As an embodiment, the first node is an aircraft or a ship.

[0534] As an embodiment, the first node is a mobile phone or a vehicle-mounted terminal.

[0535] As an embodiment, the first node is a helmet or glasses.

[0536] As an embodiment, the first node is an Internet of Things terminal or an industrial Internet of Things terminal.

[0537] As an embodiment, the first node is a device supporting low-latency and high-reliability transmission.

[0538] As an embodiment, the first receiver 1301 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Example 4.

[0539] As an embodiment, the first transmitter 1302 includes at least one of the antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, or data source 467 in Embodiment 4.

[0540] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication, machine type communication) terminals, eMTC (enhancedMTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers, satellite communication equipment, ship communication equipment, NTN user equipment and other wireless communication equipment. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point), NTN base stations, satellite equipment, flight platform equipment and other wireless communication equipment.

[0541] 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 as illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node for wireless communication, wherein: include: A first receiver receives a first signaling, wherein the first signaling indicates a first SS / PBCH block; The frequency domain location of the first SS / PBCH block is outside the active BWP; The first receiver receives a DM-RS of a first PDSCH on the active BWP; The DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

2. The first node according to claim 1, characterized in that: The DM-RS of the first PDSCH and the first SS / PBCH block are associated with the same PCI.

3. The first node according to claim 1 or 2, characterized in that: The first signaling implicitly indicates whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

4. The first node according to any one of claims 1 to 3, characterized in that: The first SS / PBCH block is not associated with SIB1.

5. The first node according to any one of claims 1 to 4, characterized in that: The sentence "Whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when the first signaling does not configure the TCI state of the first PDSCH and does not configure the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures at least one of the TCI state of the first PDSCH or configures the downlink or joint TCI state (DLorJointTCIState), the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

6. The first node according to any one of claims 1 to 5, characterized in that: The sentence "Whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the first signaling, and the meaning includes: when the first signaling does not configure the CSI-RS resources on the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when the first signaling configures the CSI-RS on the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

7. The first node according to any one of claims 1 to 6, characterized in that: The sentence "Whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the meaning of the first signaling, including: when receiving the first SS / PBCH does not require suspending reception of the active BWP, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block; when receiving the first SS / PBCH requires suspending reception of the active BWP, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block.

8. The first node according to any one of claims 1 to 7, characterized in that: Whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on a first time length, and the first time length is related to semi-co-location.

9. The first node according to any one of claims 1 to 8, characterized in that: Whether the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block depends on the IE indicating the first SS / PBCH block in the first signaling. When the first SS / PBCH block is indicated by the first IE of the first signaling, the DM-RS of the first PDSCH is not semi-co-located with the first SS / PBCH block; when the first SS / PBCH block is indicated by the second IE of the first signaling, the DM-RS of the first PDSCH is semi-co-located with the first SS / PBCH block.

10. The first node according to any one of claims 1 to 9, characterized in that: include: A first transmitter sends first auxiliary information, wherein the first auxiliary information indicates which candidate SS / PBCH blocks among the multiple SS / PBCH blocks indicated by the first signaling have performed link quality assessment; The first SS / PBCH block is one of the multiple SS / PBCH blocks indicated by the first signaling.

11. A method in a first node for wireless communication, wherein: include: receiving first signaling, wherein the first signaling indicates a first SS / PBCH block; The frequency domain location of the first SS / PBCH block is outside the active BWP; receiving a DM-RS for a first PDSCH on the active BWP; The DM-RS of the first PDSCH and the first SS / PBCH block overlap in the time domain, and whether the DM-RS of the first PDSCH and the first SS / PBCH block are semi-co-located depends on the first signaling.

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