Method and apparatus for wireless communication

Abstract

Disclosed in the present invention are a method and apparatus for wireless communication. A first receiver receives a first information block, the first information block indicating a nominal resource group set; and the first receiver receives a first signal; or a first transmitter sends a first signal, wherein the nominal resource group set comprises a plurality of nominal resource groups; a first nominal resource group is a nominal resource group comprised in the nominal resource group set, and the first nominal resource group comprises at least one actual resource group; each resource comprised in the first nominal resource group belongs to a first frequency block set in frequency domain, the first frequency block set comprises a plurality of frequency blocks, and the number of actual resource groups comprised in the first nominal resource group depends on the distribution of the first nominal resource group within the first frequency block set; and the same precoding is applied to the first signal in an actual resource group comprised in the first nominal resource group.

Description

Methods and apparatus for wireless communication Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for transmitting wireless signals in wireless communication systems supporting cellular networks. Background Technology

[0002] In traditional wireless communication, terminals supporting carrier aggregation technology can transmit and receive on multiple cells. Carrier aggregation technology can enable terminals to obtain greater service bandwidth and higher transmission rates, but its utilization efficiency of fragmented spectrum resources is not high. Supporting the configuration of multiple carriers in the same cell can not only obtain greater service bandwidth and higher transmission rates, but also effectively improve the utilization efficiency of fragmented spectrum resources and reduce base station energy consumption. Summary of the Invention

[0003] The design of precoding applications for scenarios with multiple frequency blocks is a problem worthy of study. To address this problem, this application discloses a solution. It should be noted that although the motivation for this application primarily stems from scenarios with multiple carriers configured in the same cell, this application is also applicable to other scenarios with multiple frequency blocks. Furthermore, adopting a unified solution for different scenarios can reduce implementation complexity or cost, or improve performance. Where there is no conflict, the embodiments and features in the first node of this application can be applied to the second node. Where there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0004] Where necessary, the interpretation of terms used in this application may be referenced to the descriptions in the TS38 series of specification protocols of the 3GPP (3rd Generation Partner Project).

[0005] This application discloses a method for a first node in wireless communication, characterized by comprising:

[0006] Receive a first information block, which indicates a set of nominal resource groups;

[0007] Receive the first signal; or send the first signal;

[0008] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0009] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0010] As an example, the problem this application aims to solve includes: how to design precoding applications to enhance channel estimation in scenarios where multiple frequency blocks are configured (including but not limited to scenarios where a single cell has multiple carriers).

[0011] As an example, the problem this application aims to solve includes: how to determine the actual resource group that applies the same precoding.

[0012] As an example, the above method provides the possibility of determining an appropriate (applying the same precoding) actual resource group based on the distribution of the first nominal resource group in the first frequency block set, which is beneficial to improving the flexibility of precoding application or enhancing the effectiveness of channel estimation based on the assumption of precoding invariance.

[0013] As an example, the above method, by defining both nominal resource groups and actual resource groups, provides the possibility of realizing precoding applications that can adapt to different scenarios, and has good versatility.

[0014] As an example, the above method allows the same constraints on precoding to be applied to a more subdivided set of actual resources than the nominal resource set, which helps to avoid unnecessary constraints on precoding while ensuring the application of precoding.

[0015] As an example, the advantages of the above method include: improving signal transmission performance.

[0016] As one example, the first node is a user equipment.

[0017] As one example, the first node is a terminal.

[0018] According to one aspect of this application, the above method is characterized in that,

[0019] When the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0020] As an example, the above method allows nominal resource groups to span frequency blocks in the frequency domain, improving configuration flexibility.

[0021] As an example, in many cases, it is unnecessary to keep the precoding the same across different frequency blocks (the channel correlation between the different frequency blocks may not be strong, and in such cases, channel estimation based on the assumption of precoding invariance across the different frequency blocks will not achieve good results). The above method provides the possibility of avoiding unnecessary restrictions on precoding across frequency blocks, which is conducive to achieving better communication results by using more flexible precoding.

[0022] According to one aspect of this application, the above method is characterized in that,

[0023] The number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set.

[0024] As an example, by comprehensively considering the distribution of the first nominal resource group in the first frequency block set and the frequency domain positional relationship between at least two frequency blocks in the first frequency block set, it is possible to further optimize the determination of the actual resource group based on the frequency domain configuration, which is beneficial to the optimization of precoding applications.

[0025] According to one aspect of this application, the above method is characterized in that,

[0026] When the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0027] According to one aspect of this application, the above method is characterized in that,

[0028] The different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell.

[0029] According to one aspect of this application, the above method is characterized in that,

[0030] A resource included in a nominal resource group is a REG.

[0031] According to one aspect of this application, the above method is characterized in that,

[0032] A resource included in a nominal resource group is a PRB.

[0033] As an example, the advantages of the above method include: it can reuse existing REG or PRB definitions in 3GPP (or make corresponding enhancements based on existing definitions), and the standardization workload is small.

[0034] As an example, the advantages of the above method include good compatibility with existing 3GPP protocols.

[0035] According to one aspect of this application, the above method is characterized in that,

[0036] One of the frequency blocks in the first set of frequency blocks is a BWP.

[0037] According to one aspect of this application, the above method is characterized in that,

[0038] The first set of frequency blocks constitutes a BWP.

[0039] As an example, the advantages of the above method include: it can reuse existing 3GPP BWP definitions or enhance existing 3GPP BWP definitions, and the standardization workload is small.

[0040] This application discloses a method for a second node in wireless communication, characterized by comprising:

[0041] Send a first information block, which indicates a nominal resource group set;

[0042] Send the first signal; or receive the first signal;

[0043] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0044] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0045] As one example, the second node is a network-side device.

[0046] In one embodiment, the second node is a base station.

[0047] According to one aspect of this application, the above method is characterized in that,

[0048] When the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0049] According to one aspect of this application, the above method is characterized in that,

[0050] The number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set.

[0051] According to one aspect of this application, the above method is characterized in that,

[0052] When the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0053] According to one aspect of this application, the above method is characterized in that,

[0054] The different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell.

[0055] According to one aspect of this application, the above method is characterized in that,

[0056] A resource included in a nominal resource group is a REG.

[0057] According to one aspect of this application, the above method is characterized in that,

[0058] A resource included in a nominal resource group is a PRB.

[0059] According to one aspect of this application, the above method is characterized in that,

[0060] One of the frequency blocks in the first set of frequency blocks is a BWP.

[0061] According to one aspect of this application, the above method is characterized in that,

[0062] The first set of frequency blocks constitutes a BWP.

[0063] This application discloses a first node for wireless communication, characterized in that it includes:

[0064] A first receiver receives a first information block, the first information block indicating a nominal resource group set;

[0065] The first receiver receives the first signal; or the first transmitter transmits the first signal.

[0066] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0067] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0068] This application discloses a second node for wireless communication, characterized in that it includes:

[0069] The second transmitter sends a first information block, which indicates a nominal resource group set.

[0070] The second transmitter sends the first signal; or the second receiver receives the first signal.

[0071] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0072] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0073] As an example, this application has the following advantages:

[0074] • It helps to balance the flexibility of precoding applications with the effectiveness of channel estimation based on the assumption of precoding invariance;

[0075] • It helps avoid unnecessary constraints on precoding;

[0076] • It helps to improve the transmission performance of the first signal;

[0077] • Good versatility;

[0078] • High configuration flexibility;

[0079] • It has good compatibility with existing 3GPP protocols. Attached Figure Description

[0080] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0081] Figure 1 shows a flowchart of communication of a first node according to an embodiment of this application;

[0082] Figure 2 shows a schematic diagram of a network architecture according to an embodiment of this application;

[0083] Figure 3 illustrates a schematic diagram of an embodiment of the radio protocol architecture for the user plane and control plane according to an embodiment of this application;

[0084] Figure 4 shows a schematic diagram of the hardware module of a communication node according to an embodiment of this application;

[0085] Figure 5 illustrates a transmission flowchart between a first node and a second node according to an embodiment of this application;

[0086] Figure 6 illustrates a schematic diagram of signal transmission in a given actual resource group according to an embodiment of this application;

[0087] Figure 7 shows a schematic diagram of a first frequency block set according to an embodiment of this application;

[0088] Figure 8 shows a schematic diagram of a nominal resource group according to an embodiment of this application;

[0089] Figure 9 shows a schematic diagram of a nominal resource group according to an embodiment of this application;

[0090] Figure 10 illustrates a schematic diagram of the number of actual resource groups included in the first nominal resource group according to an embodiment of the present application, depending on the distribution of the first nominal resource group in the first frequency block set;

[0091] Figure 11 illustrates a schematic diagram of the relationship between the number of actual resource groups included in the first nominal resource group and the first frequency block set according to an embodiment of this application;

[0092] Figure 12 shows a structural block diagram of a processing apparatus for a first node according to an embodiment of the present application;

[0093] Figure 13 shows a structural block diagram of a processing apparatus for a second node according to an embodiment of the present application. Detailed Implementation

[0094] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0095] Example 1

[0096] Example 1 illustrates a flowchart of communication of a first node according to an embodiment of this application, as shown in Figure 1.

[0097] The first node 100 receives the first information block in step 101; and in step 102, receives the first signal or sends the first signal.

[0098] In Example 1, the first information block indicates a set of nominal resource groups; the set of nominal resource groups includes multiple nominal resource groups, and each nominal resource group in the set of nominal resource groups includes multiple resources; the first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0099] As one embodiment, the first information block includes physical layer signaling.

[0100] As an example, the first information block includes at least one field in DCI (Downlink Control Information).

[0101] As one embodiment, the first information block includes higher-layer signaling.

[0102] As one embodiment, the first information block includes an IE (Information Element).

[0103] As one example, the first information block includes indication information for REG bundles.

[0104] As one embodiment, the first information block includes indication information of a PRB bundle.

[0105] As an example, the first information block explicitly indicates the nominal resource group set.

[0106] As an example, the first information block implicitly indicates the nominal resource group set.

[0107] As one embodiment, the first information block indicates the set of nominal resource groups, including: the first information block includes indication information of resources included in at least one nominal resource group in the set of nominal resource groups.

[0108] As one embodiment, the first information block indicates the set of nominal resource groups, including: the first information block includes indication information of the size (i.e., the number of resources included) of at least one nominal resource group in the set of nominal resource groups.

[0109] As one embodiment, the first information block includes indication information of the size of each nominal resource group in the set of nominal resource groups.

[0110] As one embodiment, the first information block indicates the nominal resource group set, including: the determination of the nominal resource group set depends on the indication of configuration information in the first information block.

[0111] As an example, the nominal resource group set is configurable.

[0112] As one embodiment, the first signal carries user data or control information.

[0113] As an example, the first node receives the first signal.

[0114] As a sub-implementation of the above embodiments, the first signal is a downlink signal.

[0115] As a sub-implementation of the above embodiments, the first signal is PDCCH (Physical Downlink Control Channel).

[0116] As a sub-implementation of the above embodiments, the first signal is PDSCH (Physical Downlink Shared Channel).

[0117] As an example, the first node sends the first signal.

[0118] As a sub-implementation of the above embodiments, the first signal is an uplink signal.

[0119] As a sub-implementation of the above embodiments, the first signal is PUSCH (Physical Uplink Shared Channel).

[0120] It should be noted that receiving (or sending) a physical channel is a common expression in this field, meaning receiving (or sending) on ​​this physical channel, or receiving (or sending) signals on this physical channel; the above expression is beneficial for maintaining consistency with the general expression in this field.

[0121] As an example, a resource in one of the nominal resource groups in the nominal resource group set is a resource located in a frequency block of the first frequency block set in the frequency domain.

[0122] As an example, a resource in a nominal resource group includes at least frequency domain resources.

[0123] As an example, a resource in a nominal resource group is a predefined basic unit that includes contiguous frequency domain resources at least in the frequency domain.

[0124] As an example, a resource in a nominal resource group includes resource elements(s).

[0125] As an example, a resource in a nominal resource group includes several resource units according to predefined rules.

[0126] As an example, a resource in a nominal resource group is a REG (Resource-Element Group).

[0127] As an example, a resource in a nominal resource group is an RB (Resource Block).

[0128] As an example, a resource in a nominal resource group is either a PRB (Physical Resource Block) or a CRB (Common Resource Block).

[0129] As one embodiment, the first nominal resource group includes at least a portion of the resources used to transmit the first signal.

[0130] As an example, the first nominal resource group is any nominal resource group in the set of nominal resource groups that includes at least a portion of the resources used to transmit the first signal.

[0131] As one embodiment, it is configurable which resources in which nominal resource groups are included in the nominal resource group set are used to transmit the first signal.

[0132] As an example, the first node receives a signaling instruction indicating the transmission resources allocated to the first signal; the set of nominal resource groups contains multiple nominal resource groups, and at least a portion of the resources in each of the multiple nominal resource groups belong to the transmission resources allocated to the first signal.

[0133] As a sub-implementation of the above embodiment, the signaling is sent by the second node.

[0134] As an example, the first signal (which can be used to carry downlink control information) includes at least one CCE (Control-Channel Elements) (each CCE has a corresponding index), and the at least one CCE is mapped to resources in at least one nominal resource group in the nominal resource group set (each resource is a REG) in an interleaved or non-interleaved manner;

[0135] The nominal resource group i includes multiple REGs: {iL, iL+1, ..., iL+L-1}; where L is the size of the REG bundle, and i = 0, 1, ..., N. REG / L-1, the N REG It is configurable;

[0136] CCE j is mapped to a nominal resource set {f(6j / L), f(6j / L+1), ..., f(6j / L+6 / L-1)}; where f(·) denotes an interleaver (in particular, for non-interleaved mappings, f(x) = x).

[0137] As an example, L is configurable.

[0138] As an example, for a non-interleaved mapping, L = 6 and f(x) = x.

[0139] As an example, the The N REG It refers to the number of REGs in the CORESET (control-resource set), which includes in the frequency domain. One resource block and includes in the time domain A time-domain symbol.

[0140] As an example, for interleaved mappings, L∈{2,6}, or,

[0141] As an example, f(x) = (rC + c + n) shift )mod(NREG / L)

[0142] x = cR + r

[0143] r = 0, 1, ..., R-1

[0144] c = 0, 1, ..., C-1

[0145] C = N REG / (LR).

[0146] As an example, R is equal to the interleaver size.

[0147] As an example, R∈{2,3,6}.

[0148] As an example, R is configurable.

[0149] As an example, the n shift ∈{0, 1, ..., 274}.

[0150] As an example, the n shift It is configurable.

[0151] As an example, the n shift Equivalent to the physical layer cell identity.

[0152] The above f(x) is unrestricted; f(x) can also be defined in other functional forms.

[0153] As an example, a time-domain symbol in this application is a basic unit defined in a time-domain structure.

[0154] As an example, one of the time-domain symbols in this application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0155] As an example, a time-domain symbol in this application is a symbol that constitutes a time slot.

[0156] As an example, the first frequency block set is configured.

[0157] As one embodiment, the number of frequency blocks included in the first frequency block set is equal to 2 or greater than 2.

[0158] As one embodiment, each frequency block in the first set of frequency blocks includes several frequency domain resources.

[0159] As one embodiment, one frequency block in the first set of frequency blocks includes contiguous frequency domain resources.

[0160] As an example, the frequency domain resources included in one frequency block of the first frequency block set are configurable.

[0161] As an example, one frequency block in the first set of frequency blocks includes at least a portion of the frequency band on a carrier.

[0162] As an example, one of the frequency blocks in the first set of frequency blocks may be a carrier or only a portion of the frequency band on that carrier.

[0163] As one embodiment, a frequency block in the first set of frequency blocks includes multiple RBs (Resource Blocks).

[0164] As an example, one frequency block in the first set of frequency blocks is a BWP (Bandwidth Part), or the first set of frequency blocks constitutes a BWP.

[0165] As an example, the advantages of the above method include: reusing existing 3GPP BWP definitions or enhancing existing 3GPP BWP definitions, with a small amount of standardization work.

[0166] As an example, there is no frequency domain overlap between different frequency blocks in the first set of frequency blocks.

[0167] As an example, each resource included in the first nominal resource group belongs to a frequency block in the first frequency block set in the frequency domain.

[0168] As one embodiment, the different frequency blocks included in the first set of frequency blocks are on different carriers.

[0169] As one example, the different carriers belong to the same cell.

[0170] As an example, the different carriers are all carriers of the same cell.

[0171] As one example, the different carriers are all configured for the same cell.

[0172] As an example, the same cell is the serving cell.

[0173] As an example, the same cell is configured for the first node.

[0174] As one embodiment, the distribution of the first nominal resource group in the first frequency block set includes: whether the first nominal resource group spans multiple frequency blocks in the first frequency block set in the frequency domain.

[0175] As an example, for each actual resource group included in the first nominal resource group, the first signal is precoded in the same way.

[0176] As an example, the precoding applied to the first signal does not need to be the same across different actual resource groups.

[0177] As an example, the first node receives the first signal, and the first node cannot assume that the precoding applied to the first signal remains the same across different actual resource groups.

[0178] As one embodiment, the first signal applies the same precoding to an actual resource group included in the first nominal resource group, including:

[0179] A portion of the first signal is transmitted in a physical resource group included in the first nominal resource group, and the portion of the first signal transmitted in the physical resource group included in the first nominal resource group uses the same precoding.

[0180] As a sub-implementation of the above embodiment, the first node sends the first signal.

[0181] As a sub-implementation of the above embodiment, the first node receives the first signal.

[0182] As one embodiment, the first signal applies the same precoding to an actual resource group included in the first nominal resource group, including:

[0183] The same precoding is used to generate the parts of the first signal transmitted on all resources in the actual resource group included in the first nominal resource group.

[0184] As a sub-implementation of the above embodiment, there is a one-to-one correspondence between the portion of the first signal and all the resources; on each of the resources, a portion of the portion of the first signal is transmitted.

[0185] As a sub-implementation of the above embodiment, the first node sends the first signal.

[0186] As a sub-implementation of the above embodiment, the first node receives the first signal.

[0187] As one embodiment, the first signal applies the same precoding to an actual resource group included in the first nominal resource group, including:

[0188] A portion of the first signal is transmitted in a real resource group included in the first nominal resource group, and the first node assumes that the portion of the first signal transmitted in the real resource group included in the first nominal resource group uses the same precoding.

[0189] As a sub-implementation of the above embodiment, the first node receives the first signal.

[0190] As one embodiment, the first signal applies the same precoding to an actual resource group included in the first nominal resource group, including:

[0191] The first node may assume that the parts of the first signal transmitted on all resources in an actual resource group included in the first nominal resource group use the same precoding.

[0192] As a sub-implementation of the above embodiment, there is a one-to-one correspondence between the portion of the first signal and all the resources; on each of the resources, a portion of the portion of the first signal is transmitted.

[0193] As a sub-implementation of the above embodiment, the first node receives the first signal.

[0194] As an example, the processing of the first signal by the receiving end needs to be implemented based on some assumptions.

[0195] As an example, by defining the assumptions on the first node side, the consistency of understanding of the transmission of the first signal between the two communicating parties can be guaranteed.

[0196] As an example, the precoding may be invisible to the receiver of the first signal, which may consider the precoding as part of the overall channel; by standardizing the assumption that the precoding remains consistent within a real resource group, channel estimation performance can be improved (by utilizing precoding correlation).

[0197] On the other hand, the receiver cannot assume that the precoding is consistent across different actual resource groups; this is beneficial for finding a balance between precoding flexibility and channel estimation performance.

[0198] As an example, the first node receives the first signal; the first node can measure a reference signal (e.g., DM-RS (Demodulation Reference Signal)) distributed in a real resource group, and provide better channel estimation performance through frequency domain interpolation.

[0199] As an example, channel estimation can be performed individually for a single set of actual resources.

[0200] As an example, a portion of the first signal is transmitted in a real resource group, meaning that the portion of the first signal is transmitted on at least a portion of the resources in this real resource group.

[0201] As an example, a resource in an actual resource group includes at least frequency domain resources.

[0202] As an example, a resource in an actual resource group is a predefined basic unit that includes continuous frequency domain resources at least in the frequency domain.

[0203] As an example, a resource in an actual resource group includes resource elements(s).

[0204] As an example, one resource in an actual resource group is a REG.

[0205] As an example, one resource in an actual resource group is an RB.

[0206] As an example, the resources in an actual resource group are a subset of the resources in the nominal resource group to which they belong.

[0207] As an example, each resource in an actual resource group is a resource in the nominal resource group to which it belongs.

[0208] As an example, the number of resources in an actual resource group is a positive integer.

[0209] As one embodiment, the first signal is generated from a plurality of information bits.

[0210] As an example, the generation process of the first signal includes precoding and resource mapping.

[0211] As one example, the resource mapping includes mappings to resources in multiple actual resource groups.

[0212] As one embodiment, the first signal includes coded bits that have at least been modulated, pre-coded (which may not be visible to the receiver), and output after resource mapping.

[0213] As one embodiment, the first signal includes coded bits that have been at least scrambled, modulated, pre-coded (which may not be visible to the receiver), and resource-mapped before being output.

[0214] As one embodiment, the first signal includes coded bits that have undergone at least scrambling, modulation, precoding (which may not be visible to the receiver), resource mapping, and physical antenna mapping before being output.

[0215] As an example, the first signal includes the output of at least some of the following processes: CRC (Cyclic Redundancy Check) attachment, code block segmentation, CRC addition at the code block level, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, precoding (which may not be visible to the receiver), antenna port mapping, resource mapping, and physical antenna mapping.

[0216] Example 2

[0217] Example 2 illustrates a schematic diagram of a network architecture according to one embodiment of this application, as shown in Figure 2. Figure 2 illustrates the system architecture of 5G NR (New Radio), LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced). The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) or some other suitable term. EPS 200 may include a UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet service 230. EPS may interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks or other cellular networks that provide circuit-switched services. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination toward UE 201. gNB 203 can connect to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP, or some other suitable term. gNB 203 provides UE 201 with an access point to EPC / 5G-CN 210. Examples of UE201 include cellular phones, smartphones, 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 IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term.The gNB203 connects to the EPC / 5G-CN 210 via the S1 / NG interface. The EPC / 5G-CN 210 includes an MME (Mobility Management Entity), an AMF (Authentication Management Field), a UPF (User Plane Function) 211, other MMEs, AMFs, and UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet Data Network Gateway) 213. The MME / AMF / UPF 211 is the control node handling signaling between the UE201 and the EPC / 5G-CN 210. Generally, the MME / AMF / UPF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW 212, which is itself connected to the P-GW 213. The P-GW 213 provides UE IP address allocation and other functions. The P-GW213 connects to Internet service 230. Internet service 230 includes carrier-compliant Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0218] It should be noted that the above embodiment 2 is a non-limiting implementation method; the solution disclosed in this application can also be applied to 6G systems, etc.

[0219] As an example, the UE201 corresponds to the first node in this application.

[0220] As an example, gNB203 corresponds to the second node in this application.

[0221] As an example, the wireless link between the UE201 and the node203 includes a cellular link.

[0222] As an example, the gNB203 is a macrocell base station.

[0223] As an example, the gNB203 is a microcell base station.

[0224] As an example, the gNB203 is a PicoCell base station.

[0225] As an example, the gNB203 is a femtocell.

[0226] As an example, the gNB203 is a base station device that supports large latency differences.

[0227] As one example, the gNB203 is a flight platform device.

[0228] As an example, the gNB203 is a satellite device.

[0229] Example 3

[0230] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and control plane according to this application, as shown in Figure 3. 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 3 shows the radio protocol architecture for a control plane 300 between a user node device (UE or RSU in V2X, onboard equipment or onboard communication module) and a network node device (gNB, UE or RSU in V2X, onboard equipment or onboard communication module), or between two UEs, using 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. Layer 1 will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the user node device and the network node device, as well as between two UEs, through PHY 301. Layer 2 (L2) 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the network node devices. The PDCP sublayer 304 provides data encryption and integrity protection, and also supports inter-cell mobility between user nodes and network nodes. The RLC sublayer 303 provides packet segmentation and reassembly, retransmission of lost packets via ARQ, and duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among user nodes. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane 300, the RRC (Radio Resource Control) sublayer 306 of Layer 3 (L3) is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between network node devices and user node devices. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for user node devices and network node devices in the user plane 350 is largely the same as the corresponding layers and sublayers in the control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 Layer 355, RLC sublayer 353 in L2 Layer 355, and MAC sublayer 352 in L2 Layer 355. However, 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. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not illustrated, the user node equipment may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.).

[0231] As an example, the wireless protocol architecture in Figure 3 is applicable to the first node in this application.

[0232] As an example, the wireless protocol architecture in Figure 3 is applicable to the second node in this application.

[0233] As an example, the first node and the second node in this application are the user node device and the network node device in Example 3, respectively.

[0234] As an example, the first information block in this application is generated in the PHY301.

[0235] As an example, the first information block in this application is generated in the MAC sublayer 302.

[0236] As an example, the first information block in this application is generated in the RRC sublayer 306.

[0237] As an example, the first signal in this application is generated in the PHY301.

[0238] As an example, the first signal in this application is generated in the PHY351.

[0239] As an example, the higher layer mentioned in this application refers to the layer above the physical layer.

[0240] Example 4

[0241] Example 4 illustrates a hardware module schematic diagram of a communication node according to an embodiment of this application, as shown in Figure 4. 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.

[0242] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0243] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0244] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. 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 retransmitting 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). Transmit processor 416 performs channel coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0245] 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 radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations 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 receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then deinterleaves and decodes the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over 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 Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the second node 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0246] 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 functions 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, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs channel coding, interleaving, and modulation mapping. Multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0247] 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 receiving 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 radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0248] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: receives a first information block, the first information block indicating a nominal resource group set; receives a first signal; or, transmits a first signal;

[0249] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0250] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0251] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: receiving a first information block, the first information block indicating a nominal resource set; receiving a first signal; or, sending a first signal;

[0252] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0253] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0254] As one embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: transmits a first information block, the first information block indicating a nominal resource group set; transmits a first signal; or receives a first signal;

[0255] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0256] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0257] As one embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: sending a first information block indicating a nominal resource group set; sending a first signal; or receiving a first signal;

[0258] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0259] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0260] As an example, the first communication device 450 is the first node in this application.

[0261] As an example, the second communication device 410 is the second node in this application.

[0262] As an example, the first communication device 450 is a UE, and the second communication device 410 is a base station.

[0263] As an example, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first information block in this application.

[0264] As an example, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitter processor 471, the transmitter processor 416, the controller / processor 475, and the memory 476} is used to transmit the first information block in this application.

[0265] As an example, at least one of {the antenna 452, the receiver 454, the multi-antenna receiver processor 458, the receiver processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signal in this application.

[0266] As an example, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitter processor 471, the transmitter processor 416, the controller / processor 475, and the memory 476} is used to transmit the first signal in this application.

[0267] As an example, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmitter processor 468, the controller / processor 459, the memory 460, and the data source 467} is used to transmit the first signal in this application.

[0268] As an example, at least one of {the antenna 420, the receiver 418, the multi-antenna receiver processor 472, the receiver processor 470, the controller / processor 475, and the memory 476} is used to receive the first signal in this application.

[0269] Example 5

[0270] Example 5 illustrates a transmission flowchart between a first node and a second node according to an embodiment of the present application, as shown in (1) and (2) of Figure 5.

[0271] In embodiment 5(1), the first node U1 receives the first information block in step S510 and receives the first signal in step S511;

[0272] The second node U2 sends the first information block in step S520 and sends the first signal in step S521.

[0273] In embodiment 5(1), the first information block indicates a set of nominal resource groups; the set of nominal resource groups includes a plurality of nominal resource groups, and each nominal resource group in the set of nominal resource groups includes a plurality of resources;

[0274] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group;

[0275] When the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0276] As a sub-example of Example 5 (1), the different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell.

[0277] As a sub-example of Example 5(1), a resource included in a nominal resource group is a REG, or a resource included in a nominal resource group is a PRB.

[0278] As a sub-implementation of embodiment 5 (1), one of the frequency blocks in the first frequency block set is a BWP, or the first frequency block set constitutes a BWP.

[0279] As a sub-example of Example 5 (1), the first signal in an actual resource group included in the first nominal resource group applies the same precoding, including:

[0280] The first node U1 may assume that the parts of the first signal transmitted on all resources in an actual resource group included in the first nominal resource group use the same precoding.

[0281] All sub-examples of Example 5(1) can be combined arbitrarily with each other.

[0282] As an example, the first node U1 is the first node in this application.

[0283] As an example, the second node U2 is the second node in this application.

[0284] As an example, the first node U1 is a UE.

[0285] As one example, the second node U2 is a base station.

[0286] As one embodiment, the air interface between the second node U2 and the first node U1 is the Uu interface.

[0287] As one embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

[0288] As one embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between the base station equipment and the user equipment.

[0289] As one embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between satellite equipment and user equipment.

[0290] As one embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between the relay device and the user equipment.

[0291] In embodiment 5(2), the first node U3 receives the first information block in step S512 and sends the first signal in step S513;

[0292] The second node U4 sends the first information block in step S522 and receives the first signal in step S523.

[0293] In embodiment 5(2), the first information block indicates a set of nominal resource groups; the set of nominal resource groups includes a plurality of nominal resource groups, and each nominal resource group in the set of nominal resource groups includes a plurality of resources;

[0294] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group;

[0295] When the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0296] As a sub-example of Example 5 (2), the different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell.

[0297] As a sub-example of Example 5 (2), a resource included in a nominal resource group is a REG, or a resource included in a nominal resource group is a PRB.

[0298] As a sub-implementation of embodiment 5 (2), one of the frequency blocks in the first frequency block set is a BWP, or the first frequency block set constitutes a BWP.

[0299] As a sub-example of Example 5 (2), the first signal in an actual resource group included in the first nominal resource group applies the same precoding, including:

[0300] The same precoding is used to generate the parts of the first signal transmitted on all resources in a real resource group included in the first nominal resource group; (the second node U4 may assume that the parts of the first signal transmitted on all resources in the real resource group included in the first nominal resource group use the same precoding).

[0301] All sub-examples of Example 5(2) can be combined arbitrarily with each other.

[0302] As an example, the first node U3 is the first node in this application.

[0303] As an example, the second node U4 is the second node in this application.

[0304] As an example, the first node U3 is a UE.

[0305] As an example, the second node U4 is a base station.

[0306] As one embodiment, the air interface between the second node U4 and the first node U3 is the Uu interface.

[0307] As one embodiment, the air interface between the second node U4 and the first node U3 includes a cellular link.

[0308] As one embodiment, the air interface between the second node U4 and the first node U3 includes a wireless interface between the base station equipment and the user equipment.

[0309] As one embodiment, the air interface between the second node U4 and the first node U3 includes a wireless interface between satellite equipment and user equipment.

[0310] As one embodiment, the air interface between the second node U4 and the first node U3 includes a wireless interface between the relay device and the user equipment.

[0311] Example 6

[0312] Example 6 illustrates a schematic diagram of signal transmission in a given actual resource group according to an embodiment of this application, as shown in Figure 6.

[0313] In Example 6, the given actual resource group is one of a plurality of actual resource groups, the given actual resource group includes resource #1, resource #2, ..., resource #Q; the sub-signal #i is the portion of the first signal transmitted on resource #i (where i is any value among 1, 2, ..., Q);

[0314] For any value i from 1 to Q, the subsignal #i includes the output of at least one modulation symbol after being precoded at least #i; precode #1, precode #2, ..., precode #Q are the same precode.

[0315] It should be noted that the #i in precoding #i is introduced for ease of explanation; the precoding #1, the precoding #2, ..., the precoding #Q are the same and can be ignored in the implementation process (it can be considered that for any value i1 from 2 to Q, precoding #i1 is precoding #1).

[0316] As an example, each of the plurality of actual resource groups is an actual resource group included in a nominal resource group in the set of nominal resource groups.

[0317] As an example, at least one of the plurality of actual resource groups is an actual resource group included in the first nominal resource group.

[0318] As an example, the given actual resource group may be an actual resource group included in the first nominal resource group.

[0319] As an example, for the receiving end of the first signal, channel estimation can be performed according to the assumption that the precoding #1, the precoding #2, ..., the precoding #Q are the same precoding.

[0320] As one embodiment, the portion of the first signal transmitted in the given actual resource group and the reference signal used for channel estimation are transmitted on different mapping units in the given actual resource group.

[0321] As an example, the sub-signal #i (where i is any value in 1, 2, ..., Q) uses the same precoding as the reference signal used for channel estimation of the first signal transmitted in the given actual resource group.

[0322] As an example, in order to generate the sub-signal #i, multiple modulation symbol groups are precoded into #i to obtain corresponding complex-valued symbol groups. These complex-valued symbol groups are then mapped sequentially onto mapping units in resource #i (wherein, each of these complex-valued symbol groups is mapped onto a mapping unit).

[0323] As an example, the mapping of the complex-valued symbol group to the mapping unit can follow a predefined rule, such as mapping in the frequency domain first and then in the time domain (which may require skipping mapping units allocated to the reference signal used for channel estimation or some mapping units determined to be skipped according to the configuration), or other predefined rules.

[0324] As an example, the precoding #i can be represented by a transformation matrix.

[0325] As an example, for one of the multiple modulation symbol groups, the corresponding complex value symbol group is the output (denoted as y, y = Wx; where W is the transformation matrix) obtained by the transformation matrix corresponding to the input precoding #i of this modulation symbol group (denoted as x).

[0326] As an example, each of the plurality of modulation symbol groups includes at least one modulation symbol.

[0327] As an example, each of the plurality of modulation symbol groups includes only one modulation symbol.

[0328] As an example, each of the plurality of modulation symbol groups includes M modulation symbols, and a signaling received by the first node indicates the M.

[0329] As a sub-implementation of the above embodiment, the signaling is sent by the second node.

[0330] As a sub-implementation of the above embodiments, the signaling explicitly or implicitly indicates the M.

[0331] As a sub-implementation of the above embodiments, M is equal to or greater than 1.

[0332] As a sub-example of the above embodiment, M is equal to the number of transport layers.

[0333] As an example, multiple information bits to be transmitted via the first signal are subjected to at least some of the following processes: CRC addition, code block segmentation, code block-level CRC addition, channel coding, rate matching, concatenation, scrambling, and modulation, to generate multiple modulation symbols; each of the multiple modulation symbol groups includes at least one modulation symbol among the multiple modulation symbols.

[0334] As an example, each of the plurality of modulation symbols belongs to one of the plurality of modulation symbol groups.

[0335] As an example, the mapping rules between the plurality of modulation symbols and the plurality of modulation symbol groups can be predefined.

[0336] As one embodiment, different modulation symbols in each of the plurality of modulation symbol groups are mapped to different transmission layers.

[0337] As one embodiment, different modulation symbols in each of the plurality of modulation symbol groups are mapped to different antenna ports.

[0338] As an example, different complex-valued symbols in the corresponding complex-valued symbol group obtained by precoding #i of each of the plurality of modulation symbol groups are mapped to different antenna ports.

[0339] As one embodiment, several mapping units are assigned to the transmission of the first signal.

[0340] As an example, for each of the plurality of actual resource groups, at least one mapping unit allocated to the transmission of the first signal belongs to that actual resource group in the frequency domain.

[0341] As an example, the mapping unit in one of the resources in the given actual resource group belongs to that resource in the frequency domain.

[0342] As an example, one resource in the given actual resource group includes multiple mapping units.

[0343] As an example, one resource in the given actual resource group consists of multiple mapping units.

[0344] As an example, the mapping unit in one of the resources in the given actual resource group is: the mapping unit assigned to the first signal that belongs to this resource in the frequency domain.

[0345] As an example, a mapping unit can be predefined.

[0346] As one example, a mapping unit includes time-frequency resources.

[0347] As an example, a mapping unit is a RE (Resource Element).

[0348] As an example, one of the resources in the given actual resource group is a REG.

[0349] As an example, one of the resources in the given actual resource group is an RB.

[0350] As an example, one of the resources in the given actual resource group is a PRB.

[0351] As an example, one of the resources in the given actual resource group is a CRB.

[0352] The above description of the embodiments for precoding modulation symbols is not limiting. The way the precoding is used in the generation of the first signal (wherein, the effect of maintaining consistency of precoding in a real resource group) can also be determined by the transmitting end manufacturer. The communicating parties can reach a consensus on using the same precoding in a real resource group. The specific precoding can be invisible to the receiving end (the receiving end can regard the precoding as part of the overall channel).

[0353] As one embodiment, the specific method by which the receiving end receives the signal is implementation-related, i.e., determined by the hardware manufacturer of the receiving end. However, those skilled in the art will know that, in effect, signal reception can generally be considered the inverse operation of signal transmission. Therefore, the restriction on the transmission of the first signal has a substantial impact on the receiving end of the first signal.

[0354] As an example, the given actual resource group is any one of the plurality of actual resource groups.

[0355] As one example, different actual resource groups among the plurality of actual resource groups may include the same or different numbers of resources.

[0356] Example 7

[0357] Example 7 illustrates a schematic diagram of a first frequency block set according to an embodiment of this application, as shown in Figure 7. In Figure 7, the first frequency block set includes F frequency blocks (frequency block #0, frequency block #1, and frequency block #2), where F = 3.

[0358] Without loss of generality, Example 7 is illustrated with F = 3; however, F can also be any other integer greater than 1.

[0359] As an example, F is configurable.

[0360] As one embodiment, one frequency block in the first set of frequency blocks includes contiguous frequency domain resources.

[0361] As an example, one of the frequency blocks in the first set of frequency blocks is configurable.

[0362] As an example, in other cases different from those shown in Figure 7, the frequency blocks #0 and #1, or the frequency blocks #1 and #2, may be continuous (that is, without the frequency domain spacing shown in Figure 7).

[0363] Example 8

[0364] Example 8 illustrates a schematic diagram of a nominal resource group according to an embodiment of this application, as shown in Figure 8. In Figure 8, the first frequency block set includes three frequency blocks (e.g., frequency block #0, frequency block #1, and frequency block #2 in Figure 7). In Figure 8, each box represents a resource located in a frequency block in the frequency domain (a total of K resources); a gray-filled box represents a resource located in frequency block #0 in the frequency domain, a blank box represents a resource located in frequency block #1 in the frequency domain, and a diagonally filled box represents a resource located in frequency block #2 in the frequency domain.

[0365] It should be noted that Figure 8 does not show the actual frequency domain positions of frequency block #0, frequency block #1, and frequency block #2; frequency block #0, frequency block #1, and frequency block #2 may belong to the same frequency band or different frequency bands, and may be continuous or discontinuous; an example of the frequency domain allocation of frequency block #0, frequency block #1, and frequency block #2 is shown in Figure 7.

[0366] As an example, the set of nominal resource groups includes T1 nominal resource groups (nominal resource group s, s = 0, 1, ..., t1, ..., t2, ..., T1-1).

[0367] As an example, the nominal resource group set includes only a portion of the nominal resource groups among the T1 nominal resource groups; the nominal resource group set includes which of the T1 nominal resource groups are configurable.

[0368] As an example, for a resource located in a frequency block in the frequency domain, the corresponding frequency domain resource belongs to that frequency block.

[0369] As an example, the meaning of a resource located in a frequency block in the frequency domain can be predefined.

[0370] As an example, a resource located in a frequency block in the frequency domain is an RB.

[0371] As an example, a resource located in a frequency block in the frequency domain is a PRB.

[0372] As an example, a resource located in a frequency block in the frequency domain is a CRB.

[0373] As an example, a resource located in a frequency block in the frequency domain is a REG.

[0374] As an example, the K resources in Figure 8 are configurable.

[0375] As an example, K is determined based on the configuration.

[0376] As an example, K is equal to the total number of all resources located in frequency block #0, frequency block #1 and frequency block #2 in the frequency domain.

[0377] As a sub-example of the above embodiment, each of the K resources is an RB.

[0378] As a sub-example of the above embodiment, each of the K resources is a PRB.

[0379] As a sub-example of the above embodiment, each of the K resources is a CRB.

[0380] As an example, K is equal to the number of configured REGs.

[0381] As an example, K is equal to the number of REGs within a CORESET.

[0382] As a sub-implementation of the above embodiment, this CORESET spans frequency block #0, frequency block #1 and frequency block #2 in the frequency domain.

[0383] As a sub-implementation of the above embodiments, from a time domain perspective, the K resources are in the same time domain symbol.

[0384] As an example, for resource u (where u = 0, 1, ..., K-1), u is the sort index of resource u in the frequency domain among all resources in the first frequency block set.

[0385] As a sub-implementation of the above embodiments, the indices of resources located in the first frequency block set in the frequency domain are sequentially increased according to a first order.

[0386] In addition to the above interpretation of u, u can also be interpreted in another way: u is used to distinguish different resources but is not a sorting index; when the interpretation of u as not a sorting index is adopted, resources can be indexed within each frequency block (for the interpretation of u as not a sorting index, resources do not need to be indexed across frequency blocks).

[0387] As an example, within a frequency block, the resource indexes are sequentially increased according to a first order.

[0388] As an example, among all resources located in the first frequency block set in the frequency domain, resource u+1 is the next resource of resource u (where u = 0, 1, ..., K-2) in a first order.

[0389] As a sub-example of the above embodiment, it should be noted that when the scope of consideration is not limited to resources located in the first frequency block set in the frequency domain, from the perspective of the frequency domain, there may be other frequency domain resources between resource u+1 and resource u.

[0390] As an example, any resource located in the first set of frequency blocks in the frequency domain is: a resource located in a frequency block of the first set of frequency blocks in the frequency domain.

[0391] As an example, when a resource is located in a frequency block of the first frequency block set in the frequency domain, the resource is located in a resource of the first frequency block set in the frequency domain.

[0392] As an example, the first order described above is: the order of frequency domain positions from low to high.

[0393] As an example, the first order described above is: the order of frequency domain positions from high to low.

[0394] As an example, resource u (where u = 0, 1, ..., K-1) can be a frequency domain resource or a resource with two-dimensional time-frequency attributes (e.g., resource u can be a frequency domain resource within a time period).

[0395] As an example, the F (F=3) frequency blocks included in the first frequency block set can be defined as frequency block #0, frequency block #1 and frequency block #2 respectively according to a predefined rule.

[0396] As an example, the frequency domain positions of frequency block #0, frequency block #1 and frequency block #2 are sequentially higher (as shown in Figure 7).

[0397] As a sub-implementation of the above embodiments, the first order is: the frequency domain position from low to high.

[0398] As an example, the frequency domain positions of frequency block #0, frequency block #1 and frequency block #2 may also be sequentially lower.

[0399] As a sub-implementation of the above embodiments, the first order is: the order of frequency domain positions from high to low.

[0400] As an example, each nominal resource group in the nominal resource group set includes at least one resource located in the first frequency block set in the frequency domain.

[0401] As an example, the resources included in any two nominal resource groups in the nominal resource group set do not overlap.

[0402] As an example, T1 is determined according to the configuration.

[0403] As an example, the size of a nominal resource group in the nominal resource group set is N1 - (N2 mod N1);

[0404] When (N2+N3)modN1 is not equal to 0, the size of a nominal resource group in the nominal resource group set is (N2+N3)modN1; when (N2+N3)modN1 is equal to 0, the size of a nominal resource group in the nominal resource group set is N1.

[0405] As an example, among all resources located in the first frequency block set in the frequency domain, the first resource in the nominal resource group r+1 is the next resource after the last resource in the nominal resource group r (where r = 0, 1, ..., T1-2) (for example, in Figure 8, the last resource of the nominal resource group 0 is resource 1, the first resource of the nominal resource group 1 is resource 2, and so on).

[0406] As an example, the size of the first nominal resource group in the nominal resource group set is N1 - (N2 mod N1);

[0407] When (N2+N3)modN1 is not equal to 0, the size of the last nominal resource group in the nominal resource group set is (N2+N3)modN1; when (N2+N3)modN1 is equal to 0, the size of the last nominal resource group in the nominal resource group set is N1.

[0408] As a sub-example of the above embodiment, the size of the nominal resource groups other than the first and last nominal resource groups in the nominal resource group set is N1.

[0409] As an example, in Figure 8, nominal resource group 0 is the first nominal resource group in the set of nominal resource groups, and nominal resource group T1-1 is the last nominal resource group in the set of nominal resource groups.

[0410] As an example, the size refers to the number of resources included.

[0411] As an example, N1 is configurable.

[0412] As an example, N1 is greater than 1.

[0413] As an example, N1 is equal to 2 or 4.

[0414] As an example, N1 is equal to 2, 3, or 6.

[0415] As an example, N2 is 0.

[0416] As a sub-implementation of the above embodiment, N2 can be fixed at 0; in this case, the size of the nominal resource group 0 shown in Figure 8 will not be equal to N1.

[0417] As an example, N2 is configurable.

[0418] As an example, N2 is the index of the starting position of the first frequency block set in the frequency domain.

[0419] As an example, a resource located in a frequency block in the frequency domain is an RB; N2 is equal to the number of RBs offset from the starting position of the first frequency block set relative to a reference position.

[0420] As a sub-implementation of the above embodiments, the reference position is predefined.

[0421] As a sub-implementation of the above embodiments, the reference position is configurable.

[0422] As a sub-implementation of the above embodiments, the reference location is common resource block 0.

[0423] As a sub-implementation of the above embodiments, the starting position of the first frequency block set is the resource with the earliest frequency domain position in the first frequency block set.

[0424] As a sub-implementation of the above embodiment, in Figure 8, the starting position of the first frequency block set is resource 0.

[0425] As an example, the first order is: the frequency domain position from low to high; the first one refers to: the lowest.

[0426] As an example, the first order is: the order of frequency domain positions from high to low; the "most forward" refers to: the highest.

[0427] As an example, N3 is configurable.

[0428] As an example, N3 is equal to the total number of all resources located in the first frequency block set in the frequency domain.

[0429] As an example, T1 can be obtained based on N1 and N3.

[0430] As an example, T1 can be obtained based on N1, N2 and N3.

[0431] As an example, T1 is not less than 2, and T1 satisfies: N3 = N1 × (T1 - 2) + N1 - (N2 mod N1) + tmp; where, if (N2 + N3) mod N1 is not equal to 0, tmp = (N2 + N3) mod N1, otherwise, tmp = N1 (for example, in Figure 8, N1 is equal to 4, N2 mod 4 = 2, N3 is equal to K; T1 satisfies: K = 4(T1 - 2) + 5).

[0432] As an example, K is greater than N1, and K is equal to a positive integer multiple of N1.

[0433] As a sub-implementation of the above embodiment (in this case, different from that shown in Figure 8), each of the T1 nominal resource groups includes N1 resources.

[0434] Example 9

[0435] Example 9 illustrates a schematic diagram of a nominal resource group according to an embodiment of this application, as shown in Figure 9. In Figure 9, the first frequency block set includes at least two frequency blocks (e.g., frequency block #0 and frequency block #1 in Figure 7; in this case, F in Example 7 can be considered to be greater than or equal to 2). In Figure 9, each box represents a resource located in a frequency block in the frequency domain (a total of P resources); a gray-filled box represents a resource located in frequency block #0 in the frequency domain, and a blank box represents a resource located in frequency block #1 in the frequency domain.

[0436] It should be noted that Figure 9 does not show the actual frequency domain positions of frequency block #0 and frequency block #1; frequency block #0 and frequency block #1 may belong to the same frequency band or different frequency bands, and may be continuous or discontinuous; an example can be seen in the frequency block #0 and frequency block #1 in Figure 7.

[0437] As an example, the set of nominal resource groups includes T2 nominal resource groups (nominal resource group s, s = 0, 1, ..., t3, t3+1, ..., T2-1).

[0438] As an example, the nominal resource group set includes only a portion of the nominal resource groups among the T2 nominal resource groups; the nominal resource group set includes which of the T2 nominal resource groups are configurable.

[0439] As an example, the meaning of one of the P resources can be predefined.

[0440] As an example, one of the P resources has a two-dimensional time-frequency attribute (e.g., including frequency domain resources in the frequency domain and time domain resources in the time domain).

[0441] As an example, each of the P resources is a REG.

[0442] As an example, the P resources are configurable.

[0443] As an example, P is determined based on the configuration.

[0444] As an example, P is equal to the total number of all resources located in frequency block #0 and frequency block #1 in the frequency domain.

[0445] As an example, P is equal to the number of configured REGs.

[0446] As an example, P is an even number.

[0447] As an example, P is a multiple of 6.

[0448] As an example, P is equal to the number of REGs within a CORESET.

[0449] As a sub-example of the above embodiment, this CORESET spans frequency block #0 and frequency block #1 in the frequency domain.

[0450] As an example, from a time domain perspective, resources 0, 2, 4, 6, 8, ..., P-6, P-4, P-2 are in one time domain symbol, while resources 1, 3, 5, 7, 9, ..., P-5, P-3, P-1 are in another time domain symbol.

[0451] As a sub-example of the above embodiment, the frequency domain positions of resources 0, 2, 4, 6, 8, ..., P-6, P-4, P-2 increase sequentially; the frequency domain positions of resources 1, 3, 5, 7, 9, ..., P-5, P-3, P-1 increase sequentially.

[0452] As a sub-implementation of the above embodiments, the one time-domain symbol precedes the other time-domain symbol.

[0453] As an example, b (where b = 0, 1, ..., P-1) is the sorting index of resource b among the P resources.

[0454] As an example, the P resources are indexed in ascending order, starting from index 0, in a time-first manner, beginning with the first time-domain symbol in the CORESET and the lowest-indexed RB.

[0455] As an example, the P resources can also be sorted according to other predefined rules.

[0456] As an example, each of the T2 nominal resource groups includes C resources, where P is greater than C and P is equal to a positive integer multiple of C.

[0457] As an example, C equals 6 (as shown in Figure 9).

[0458] As an example, C is a configurable positive integer greater than 1.

[0459] As an example, C is equal to one of 2, 3, or 6.

[0460] As an example, T2 = P / C.

[0461] Example 10

[0462] Example 10 illustrates a schematic diagram of how the number of actual resource groups included in a first nominal resource group according to an embodiment of this application depends on the distribution of the first nominal resource group in a first frequency block set, as shown in Figure 10. In Figure 10, each box represents a resource in the first nominal resource group, and gray-filled boxes and blank boxes represent resources located in two different frequency blocks in the frequency domain, respectively.

[0463] In Embodiment 10, the first nominal resource group spans two frequency blocks in the first frequency block set in the frequency domain (the first nominal resource group includes eight resources); the first nominal resource group includes two actual resource groups, one of the two actual resource groups includes four resources located in one of the two frequency blocks in the frequency domain, and the other of the two actual resource groups includes four resources located in the other of the two frequency blocks in the frequency domain.

[0464] In addition to the situation shown in Figure 10, at least one of the following situations may also exist: 1) the first nominal resource group does not span frequency blocks in the first frequency block set in the frequency domain; 2) the first nominal resource group spans more than two frequency blocks in the first frequency block set in the frequency domain.

[0465] As an example, at least a portion of the resources in the first nominal resource group are used to transmit the first signal.

[0466] As an example, each resource in the first nominal resource group is used to transmit the first signal.

[0467] As an example, when all resources included in the first nominal resource group are resources located in the same frequency block in the first frequency block set in the frequency domain, the first nominal resource group does not span frequency blocks in the first frequency block set in the frequency domain.

[0468] As one embodiment, the first nominal resource group not spanning frequency blocks in the first frequency block set in the frequency domain includes: among all resources included in the first nominal resource group, there are no resources located in different frequency blocks in the first frequency block set in the frequency domain.

[0469] As an example, when the first nominal resource group includes at least one resource located in one frequency block of the first frequency block set in the frequency domain and includes at least one resource located in another frequency block of the first frequency block set in the frequency domain, the first nominal resource group spans at least two frequency blocks of the first frequency block set in the frequency domain.

[0470] As one embodiment, the first frequency block set includes multiple frequency blocks; the first nominal resource group spans W (where W can be any value from 2 to W0, and W0 is equal to the total number of frequency blocks included in the first frequency block set) frequency blocks in the frequency domain, which includes the following meanings:

[0471] The first set of frequency blocks includes a subset of frequency blocks, the number of which is equal to W; any resource included in the first nominal resource set is a resource located in a frequency block within the subset of frequency blocks in the frequency domain; and for any frequency block in the subset of frequency blocks, the first nominal resource set includes at least one resource located in that frequency block in the frequency domain.

[0472] As one embodiment, the first frequency block set includes multiple frequency blocks; the first nominal resource group spans W (where W can be any value from 2 to W0, and W0 is equal to the total number of frequency blocks included in the first frequency block set) frequency blocks in the frequency domain, which includes the following meanings:

[0473] In the first nominal resource group, there are W resources that are located in the W frequency blocks of the first frequency block set in the frequency domain, and each resource in the first nominal resource group is located in one of the W frequency blocks in the frequency domain.

[0474] As an example, for any actual resource group included in the first nominal resource group, all resources included in this actual resource group are located in the same frequency block in the first frequency block set in the frequency domain.

[0475] As an example, for any actual resource group included in the first nominal resource group, there are no resources in the frequency domain located in different frequency blocks of the first frequency block set among all the resources included in this actual resource group.

[0476] As one embodiment, the distribution of the first nominal resource group in the first frequency block set includes: whether the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain.

[0477] As one embodiment, the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, or the first nominal resource group does not span any frequency blocks in the first frequency block set in the frequency domain.

[0478] As an example, when the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0479] As a sub-example of the above embodiment, there are two frequency blocks in the first frequency block set that are in the same frequency band.

[0480] As a sub-implementation of the above embodiments, any two frequency blocks in the first frequency block set are not in the same frequency band.

[0481] As a sub-implementation of the above embodiments, when the first nominal resource group spans W frequency blocks in the first frequency block set in the frequency domain, the number of actual resource groups included in the first nominal resource group is equal to W; wherein, W is equal to or greater than 2.

[0482] As an example, when the first nominal resource group does not span frequency blocks in the first frequency block set in the frequency domain, the number of actual resource groups included in the first nominal resource group is equal to 1.

[0483] As an example, the number of actual resource groups included in the first nominal resource group is equal to 1, and the resources included in the first nominal resource group are exactly the same as the resources included in the actual resource groups included in the first nominal resource group.

[0484] As an example, any resource included in the first nominal resource group is a resource located in a frequency block of the first frequency block set in the frequency domain.

[0485] As an example, any resource included in a nominal resource group belongs to an actual resource group included in that nominal resource group; and a resource included in a nominal resource group will not belong to both an actual resource group included in that nominal resource group and another actual resource group included in that nominal resource group.

[0486] As an example, the number of actual resource groups included in a nominal resource group in the nominal resource group set depends on whether the nominal resource group spans multiple frequency blocks in the first frequency block set in the frequency domain.

[0487] As an example, the number of resources included in an actual resource group depends on whether the nominal resource group to which it belongs spans multiple frequency blocks in the first set of frequency blocks in the frequency domain.

[0488] As an example, for any nominal resource group in the set of nominal resource groups, the actual resource group included in the first nominal resource group (and the corresponding method for determining the resources included in each actual resource group) described in this application can be used to determine the actual resource group included in any nominal resource group (and the corresponding method for determining the resources included in each actual resource group).

[0489] As an example, in Figure 8, each of the T1 nominal resource groups, excluding nominal resource group t1, includes 1 actual resource group (each of the T1 nominal resource groups, excluding nominal resource group t1, does not span frequency blocks in the first frequency block set in the frequency domain).

[0490] The nominal resource group t1 includes 2 actual resource groups (the nominal resource group t1 spans 2 frequency blocks in the first frequency block set in the frequency domain); wherein, one actual resource group includes resource k1+1, and the other actual resource group includes resources k1+2, k1+3 and k1+4).

[0491] As an example, in Figure 9, each of the T2 nominal resource groups, except for nominal resource group t3+1, includes 1 actual resource group (each of the T2 nominal resource groups, except for nominal resource group t3+1, does not span frequency blocks in the first frequency block set in the frequency domain).

[0492] The nominal resource group t3+1 includes 2 actual resource groups (the nominal resource group t3+1 spans 2 frequency blocks in the first frequency block set in the frequency domain); wherein, one actual resource group includes resources p1+6 and p1+7, and the other actual resource group includes resources p1+8, p1+9, p1+10 and p1+11.

[0493] Example 11

[0494] Example 11 illustrates a schematic diagram of the relationship between the number of actual resource groups included in the first nominal resource group and the first frequency block set according to an embodiment of this application, as shown in Figure 11.

[0495] In Embodiment 11, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set, and the distribution of the first nominal resource group in the first frequency block set.

[0496] As an example, the frequency domain positional relationship between the at least two frequency blocks in the first frequency block set includes whether the at least two frequency blocks in the first frequency block set belong to the same frequency band.

[0497] As one embodiment, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set and the distribution of the first nominal resource group in the first frequency block set, including:

[0498] The number of actual resource groups included in the first nominal resource group depends on whether the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain.

[0499] As an example, when the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0500] As a sub-implementation of the above embodiments, when the first nominal resource group does not span frequency blocks that do not belong to the same frequency band in the first frequency block set in the frequency domain, the number of actual resource groups included in the first nominal resource group is equal to 1.

[0501] As a sub-implementation of the above embodiments, when the first nominal resource group spans at least W1 frequency blocks belonging to W1 different frequency bands in the first frequency block set in the frequency domain (there may be multiple frequency blocks belonging to the same frequency band), the actual number of resource groups included in the first nominal resource group is W1.

[0502] Wherein, W1 is equal to or greater than 2; for any actual resource group included in the first nominal resource group, all resources included in this actual resource group are located in the same frequency band in the frequency domain.

[0503] As an example, the advantages of the above method include: it helps to ensure the actual resource group allocation between different frequency bands while avoiding unnecessary actual resource group allocation within the same frequency band, and takes into account the performance and effectiveness of channel estimation based on the assumption of precoding invariance (generally speaking, the channel correlation within the same frequency band is strong, while the channel correlation between different frequency bands is weak).

[0504] As an example, the following two situations both belong to the case where the first nominal resource group does not span frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain: 1) The first nominal resource group does not span frequency blocks in the first frequency block set in the frequency domain; 2) All frequency blocks in the first frequency block set spanned by the first nominal resource group in the frequency domain belong to the same frequency band.

[0505] As an example, multiple frequency bands can be predefined.

[0506] As an example, a frequency band is a frequency range.

[0507] As an example, a frequency band is a range of frequencies defined by a set of RF (Radio Frequency) requirements.

[0508] As an example, a frequency band can be an NR (New Radio) band, or a band defined in the 6G protocol.

[0509] As an example, there is no frequency domain overlap between different frequency bands.

[0510] As an example, any frequency block in the first set of frequency blocks is contained within a frequency band.

[0511] As an example, the frequency domain positional relationship between the at least two frequency blocks in the first frequency block set includes whether the at least two frequency blocks in the first frequency block set are continuous.

[0512] As one embodiment, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set and the distribution of the first nominal resource group in the first frequency block set, including:

[0513] The number of actual resource groups included in the first nominal resource group depends on whether the first nominal resource group spans discontinuous frequency blocks in the first frequency block set in the frequency domain.

[0514] As an example, when the first nominal resource group spans discontinuous frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0515] As a sub-implementation of the above embodiments, when the first nominal resource group does not span discontinuous frequency blocks in the first frequency block set in the frequency domain, the number of actual resource groups included in the first nominal resource group is equal to 1.

[0516] As a sub-implementation of the above embodiment, when the first nominal resource group spans W2 frequency blocks in the first frequency block set in the frequency domain, the W2 frequency blocks form W3 frequency block groups according to their continuity (wherein, for each frequency block group, it may include only one frequency block, or all the frequency blocks included may be sequentially consecutive; and (if W3 is greater than 1) any two frequency blocks belonging to different frequency block groups are not consecutive), the actual number of resource groups included in the first nominal resource group is W3;

[0517] Wherein, W2 is equal to or greater than 2, and W3 is equal to or greater than 1; for any actual resource group included in the first nominal resource group, all resources included in this actual resource group are located in the same frequency block group in the frequency domain.

[0518] It should be noted that the above-mentioned grouping of frequency blocks is not a restrictive method, but is introduced to illustrate the determination result of the actual resource group included in the first nominal resource group; other methods that can obtain the determination result of the above-mentioned actual resource group are also acceptable.

[0519] As an example, the advantages of the above method include: it helps to ensure the actual resource group allocation for discontinuous frequency blocks while avoiding unnecessary actual resource group allocation for continuous frequency blocks, and takes into account the performance and effectiveness of channel estimation based on the assumption of precoding invariance (generally speaking, the channel correlation between continuous frequency blocks is strong, while the channel correlation between discontinuous frequency blocks is weak).

[0520] As an example, the following two situations both belong to the case where the first nominal resource group does not span discontinuous frequency blocks in the first frequency block set in the frequency domain: 1) The first nominal resource group does not span frequency blocks in the first frequency block set in the frequency domain; 2) All frequency blocks in the first frequency block set spanned by the first nominal resource group in the frequency domain are contiguous.

[0521] As an example, if the frequency domain interval between two frequency blocks is greater than a given threshold, then the two frequency blocks are not contiguous; otherwise, the two frequency blocks are contiguous.

[0522] As an example, several frequency blocks are arranged sequentially and continuously in the frequency domain (with no frequency domain overlap between any two frequency blocks); if the frequency domain interval between any two adjacent frequency blocks is not greater than a given threshold, then the several frequency blocks are sequentially and continuously arranged; otherwise, the several frequency blocks are not considered to be sequentially and continuously arranged.

[0523] The above description of sequential continuity applies to the case where the number of frequency blocks included in the plurality of frequency blocks is equal to or greater than 2.

[0524] As an example, the given threshold is 0.

[0525] As an example, the given threshold is predefined.

[0526] As an example, the given threshold is configurable.

[0527] As an example, the given threshold is equal to a bandwidth.

[0528] As an example, any resource included in a nominal resource group belongs to an actual resource group included in that nominal resource group; and a resource included in a nominal resource group will not belong to both an actual resource group included in that nominal resource group and another actual resource group included in that nominal resource group.

[0529] Example 12

[0530] Example 12 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in Figure 12. In Figure 12, the processing apparatus A00 in the first node includes a first receiver A01 and a first transmitter A02.

[0531] As one example, the first node is a user equipment.

[0532] As one example, the first node is a user equipment in a 5G or 6G network.

[0533] As an example, the first node is a user equipment that supports configuring multiple carriers on the same serving cell.

[0534] As an example, the first receiver A01 includes at least one of the following in Figure 4 of this application: antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460, and data source 467.

[0535] As one embodiment, the first receiver A01 includes at least the first five of the following in Figure 4 of this application: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0536] As one embodiment, the first receiver A01 includes at least the first four of the following in Figure 4 of this application: antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460, and data source 467.

[0537] As an example, the first receiver A01 includes at least three of the following in Figure 4 of this application: antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460, and data source 467.

[0538] As one embodiment, the first receiver A01 includes at least two of the following in Figure 4 of this application: antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460, and data source 467.

[0539] As an example, the first transmitter A02 includes at least one of the following in Figure 4 of this application: antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467.

[0540] As an example, the first transmitter A02 includes at least the first five of the following in Figure 4 of this application: antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467.

[0541] As an example, the first transmitter A02 includes at least the first four of the following in Figure 4 of this application: antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467.

[0542] As an example, the first transmitter A02 includes at least three of the following in Figure 4 of this application: antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467.

[0543] As one embodiment, the first transmitter A02 includes at least two of the following in Figure 4 of this application: antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467.

[0544] As one embodiment, the first receiver A01 receives a first information block, the first information block indicating a nominal resource group set;

[0545] The first receiver A01 receives the first signal;

[0546] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0547] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0548] As one embodiment, the first receiver A01 receives a first information block, the first information block indicating a nominal resource group set;

[0549] The first transmitter A02 sends a first signal;

[0550] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0551] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0552] As an example, when the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0553] As an example, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set.

[0554] As an example, when the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0555] As one embodiment, the different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell.

[0556] As an example, a resource included in a nominal resource group is a REG.

[0557] As an example, a resource included in a nominal resource group is a PRB.

[0558] As an example, one of the frequency blocks in the first set of frequency blocks is a BWP.

[0559] As an example, the first set of frequency blocks constitutes a BWP.

[0560] As one embodiment, the first receiver A01 receives a first information block, the first information block indicating a nominal resource group set;

[0561] The first receiver A01 receives the first signal; or the first transmitter A02 transmits the first signal.

[0562] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0563] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group;

[0564] The different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell;

[0565] A nominal resource group may contain a resource that is a REG, or a nominal resource group may contain a resource that is a PRB.

[0566] As a sub-implementation of the above embodiments, when the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0567] As a sub-implementation of the above embodiments, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set.

[0568] As a sub-implementation of the above embodiments, when the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0569] As a sub-implementation of the above embodiments, one frequency block in the first frequency block set is a BWP, or the first frequency block set constitutes a BWP.

[0570] Example 13

[0571] Example 13 illustrates a structural block diagram of a processing device for a second node according to an embodiment of this application; as shown in Figure 13. In Figure 13, the processing device B00 in the second node includes a second transmitter B01 and a second receiver B02.

[0572] As one embodiment, the second node includes a network-side device.

[0573] As one embodiment, the second node includes at least the former of base station equipment and core network equipment.

[0574] In one embodiment, the second node is a base station, satellite equipment, or a relay node.

[0575] As one embodiment, the second node is one of the testing device, testing equipment, or testing instrument.

[0576] As one embodiment, the second transmitter B01 includes at least one of the following in Figure 4 of this application: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0577] As one embodiment, the second transmitter B01 includes at least the first five of the following in Figure 4 of this application: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0578] As one embodiment, the second transmitter B01 includes at least the first four of the following in Figure 4 of this application: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0579] As one embodiment, the second transmitter B01 includes at least the first three of the following in Figure 4 of this application: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0580] As one embodiment, the second transmitter B01 includes at least two of the following in Figure 4 of this application: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0581] As one embodiment, the second receiver B02 includes at least one of the following in Figure 4 of this application: antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475, and memory 476.

[0582] As one embodiment, the second receiver B02 includes at least the first five of the following in Figure 4 of this application: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0583] As one embodiment, the second receiver B02 includes at least the first four of the following in Figure 4 of this application: antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475, and memory 476.

[0584] As one embodiment, the second receiver B02 includes at least the first three of the following in Figure 4 of this application: antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475, and memory 476.

[0585] As one embodiment, the second receiver B02 includes at least two of the following in Figure 4 of this application: antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475, and memory 476.

[0586] As one embodiment, the second transmitter B01 transmits a first information block, the first information block indicating a nominal resource group set;

[0587] The second transmitter B01 sends the first signal;

[0588] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0589] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0590] As one embodiment, the second transmitter B01 transmits a first information block, the first information block indicating a nominal resource group set;

[0591] The second receiver B02 receives the first signal;

[0592] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0593] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

[0594] As an example, when the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0595] As an example, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set.

[0596] As an example, when the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0597] As one embodiment, the different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell.

[0598] As an example, a resource included in a nominal resource group is a REG.

[0599] As an example, a resource included in a nominal resource group is a PRB.

[0600] As an example, one of the frequency blocks in the first set of frequency blocks is a BWP.

[0601] As an example, the first set of frequency blocks constitutes a BWP.

[0602] As one embodiment, the second transmitter B01 transmits a first information block, the first information block indicating a nominal resource group set;

[0603] The second transmitter B01 transmits the first signal; or the second receiver B02 receives the first signal.

[0604] The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources;

[0605] The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group;

[0606] The different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell;

[0607] A nominal resource group may contain a resource that is a REG, or a nominal resource group may contain a resource that is a PRB.

[0608] As a sub-implementation of the above embodiments, when the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0609] As a sub-implementation of the above embodiments, the number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set.

[0610] As a sub-implementation of the above embodiments, when the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups.

[0611] As a sub-implementation of the above embodiments, one frequency block in the first frequency block set is a BWP, or the first frequency block set constitutes a BWP.

[0612] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication devices, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), and other wireless communication equipment.

[0613] Those skilled in the art will understand that this application may be implemented in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

A first node for wireless communication, characterized in that, include: A first receiver receives a first information block, the first information block indicating a nominal resource group set; The first receiver receives the first signal; Alternatively, the first transmitter sends the first signal; The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources; The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group. The first node according to claim 1 is characterized in that, When the first nominal resource group spans at least two frequency blocks in the first frequency block set in the frequency domain, the first nominal resource group includes at least two actual resource groups. The first node according to claim 1 is characterized in that, The number of actual resource groups included in the first nominal resource group depends on the frequency domain positional relationship between at least two frequency blocks in the first frequency block set. The first node according to claim 1 or 3 is characterized in that, When the first nominal resource group spans frequency blocks in the first frequency block set that do not belong to the same frequency band in the frequency domain, the first nominal resource group includes at least two actual resource groups. The first node according to any one of claims 1 to 4 is characterized in that, The different frequency blocks included in the first frequency block set are on different carriers, and the different carriers belong to the same cell. The first node according to any one of claims 1 to 5 is characterized in that, A nominal resource group may contain a resource that is a REG, or a nominal resource group may contain a resource that is a PRB. The first node according to any one of claims 1 to 6 is characterized in that, One of the frequency blocks in the first set of frequency blocks is a BWP, or the first set of frequency blocks constitutes a BWP. A second node for wireless communication, characterized in that, include: The second transmitter sends a first information block, which indicates a nominal resource group set. The second transmitter sends the first signal; Alternatively, a second receiver receives the first signal; The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources; The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group. A method for a first node in wireless communication, characterized in that, include: Receive a first information block, which indicates a set of nominal resource groups; Receive the first signal; Alternatively, send the first signal; The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources; The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group. A method for a second node in wireless communication, characterized in that, include: Send a first information block, which indicates a set of nominal resource groups; Send the first signal; Alternatively, receive the first signal; The nominal resource group set includes multiple nominal resource groups, and each nominal resource group in the nominal resource group set includes multiple resources; The first nominal resource group is a nominal resource group included in the set of nominal resource groups, and the first nominal resource group includes at least one actual resource group; each resource included in the first nominal resource group belongs to a first frequency block set in the frequency domain, the first frequency block set includes multiple frequency blocks, and the number of actual resource groups included in the first nominal resource group depends on the distribution of the first nominal resource group in the first frequency block set; the first signal applies the same precoding in an actual resource group included in the first nominal resource group.

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