CN114095135A

CN114095135A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN114095135A
Application number: CN202010766471.9A
Authority: CN
Inventors: 蒋琦; 刘铮; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2022-02-25
Anticipated expiration: 2040-08-03
Also published as: CN114095135B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A node first receives first signaling, which is used to determine a first set of frequency domain resources; subsequently receiving or generating a first signal in the first set of frequency domain resources; the first signaling comprises a first domain, the first domain is used for indicating the first frequency domain resource set, any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool and a second frequency domain resource pool at the same time, the first frequency domain resource pool corresponds to a first bandwidth, the second frequency domain resource pool corresponds to a second bandwidth, and the first bandwidth and the second bandwidth are not equal; the smaller value of the comparison of the first bandwidth and the second bandwidth is used to determine the number of bits occupied by the first domain. The method and the device optimize the design of the frequency domain resource allocation domain for the terminal with limited bandwidth so as to improve the scheduling flexibility and reduce the control signaling load.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus for a reduced capability device in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of multiple application scenarios, a New air interface technology (NR, New Radio) (or 5G) is determined to be studied in 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 guilds, and standardization Work on NR starts after passing through WI (Work Item) of the New air interface technology (NR, New Radio) in 3GPP RAN #75 guilds.

In a new air interface technology, the application of the internet of things is an important component. Although some new features have been introduced in Release 15 (Release 15) and Release 16 (Release 16) to support different Internet of Things application scenarios, such as Ultra-reliable Low-Latency Communications (URLLC) and Industrial physical networks (IIoT), standard support is still required for some other application scenarios, such as wearable devices, surveillance videos, etc. Based on the above background, the SI (Study Item) of Reduced Capability (Reduced Capability), also referred to as NR-Lite at the previous stage, was passed through at 3GPP RAN #86 at the next global meeting, and the Study work was started at Release 17 (Release 17).

Disclosure of Invention

Reducing the radio frequency bandwidth is one of the effective methods to reduce the complexity of the user equipment. However, due to the reduction of the radio frequency Bandwidth of the user equipment, the existing resource allocation method based on the Bandwidth Part (BWP) may not be directly reused.

The present application discloses a solution to the problem in narrow radio frequency bandwidth scenarios, such as red cap. It should be noted that in the description of the present application, only a narrow bandwidth user equipment (such as a RedCap) is taken as a typical application scenario or example; the present application is also applicable to other scenarios in which the receiving or transmitting bandwidth is limited and faces similar problems (for example, in a scenario in which a larger carrier bandwidth is supported, a user equipment supporting the existing bandwidth may also face similar problems), and may also achieve similar technical effects. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to a RedCap scenario) also helps to reduce hardware complexity and cost.

Further, without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (telematics), nouns, functions, variables in the present application may be explained (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.

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

receiving first signaling, the first signaling being used to determine a first set of frequency domain resources;

receiving a first signal in the first set of frequency domain resources;

wherein the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources.

transmitting a first signal in the first set of frequency domain resources;

As an embodiment, one technical feature of the above method is that: the first bandwidth corresponds to a bandwidth of BWP in which the first node operates, and the second bandwidth corresponds to a maximum radio frequency bandwidth supported by the first node; selecting the smaller value of the first bandwidth and the second bandwidth to be used for determining the length of a frequency domain resource allocation domain, thereby ensuring the realization of the maximum frequency domain scheduling flexibility; and the scheduling with overlarge scheduling granularity is avoided when the radio frequency bandwidth is smaller than the BWP bandwidth.

According to an aspect of the application, the first domain is used for determining the second frequency domain resource pool from the first frequency domain resource pool or a domain other than the first domain comprised by the first signaling is used for determining the second frequency domain resource pool from the first frequency domain resource pool when the first bandwidth is larger than the second bandwidth.

As an embodiment, one technical feature of the above method is that: when the radio frequency bandwidth is smaller than the BWP bandwidth, the radio frequency bandwidth is used to determine the frequency domain scheduling granularity, and the position of the radio frequency bandwidth actually used needs to be indicated in the BWP bandwidth.

According to one aspect of the application, comprising:

receiving a first information block;

wherein the first information block indicates at least one of a first alternative type or a second alternative type, the first type being one of the first alternative type and the second alternative type; when only the first alternative type is indicated, the first type is the first alternative type; when only the second alternative type is indicated, the first type is the second alternative type; the first field is used to indicate the first type from among the first alternative type and the second alternative type when both the first alternative type and the second alternative type are indicated.

According to an aspect of the application, the first domain comprises a first indication value, which is used to determine a first frequency domain resource block and a first number; the first number is a positive integer, and the first number is equal to the number of frequency domain resource blocks occupied by the first signal in a frequency domain; the first frequency domain resource block is a starting frequency domain resource block occupied by the first signal in a frequency domain; the first indication value and the target index are linearly related; when the target bandwidth is equal to the first bandwidth, the target index is an index of the first frequency-domain resource block in the first frequency-domain resource pool; when the target bandwidth is equal to the second bandwidth, the target index is an index of the first frequency-domain resource block in the second frequency-domain resource pool.

As an embodiment, one technical feature of the above method is that: the above method is directed to frequency domain resource allocation type 0.

According to an aspect of the application, the first domain comprises a first bitmap, one of the target bandwidth and the first bandwidth is used for determining a resource block group size, the resource block group size is a positive integer; any bit in the first bitmap corresponds to one resource block group, and any bit in the first bitmap is used for indicating whether a frequency domain resource block included in the corresponding resource block group belongs to the first frequency domain resource set or not; the resource block group corresponding to any one bit in the first bitmap comprises a positive integer number of frequency domain resource blocks, and the size of the resource block group is used for determining the number of the frequency domain resource blocks included in the resource block group corresponding to any one bit in the first bitmap; the target bandwidth is used to determine a total number of frequency domain resource blocks included in the resource block group corresponding to the first bitmap.

As an embodiment, one technical feature of the above method is that: the above method is directed to frequency domain resource allocation type 1.

According to one aspect of the application, comprising:

receiving a second information block;

wherein the second information block is used to indicate K1 candidate parameters, and the size of the resource block group is a candidate parameter corresponding to the target bandwidth among the K1 candidate parameters; the K1 is a positive integer greater than 1.

According to one aspect of the present application, a third bandwidth is used to determine a target threshold, the third bandwidth being greater than the second bandwidth; when the number of bits occupied by the first domain and the second domain is larger than the target threshold value, part of bits in the first domain are truncated; when the bit number occupied by the first domain and the second domain is smaller than the target threshold value, the first signaling is padded with zero; the first signaling includes the second domain, which is used to determine the second pool of frequency domain resources from the first pool of frequency domain resources.

As an embodiment, one technical feature of the above method is that: when the sizes of multiple DCIs (Downlink Control Information) are aligned (Alignment) to Control the blind detection times, the load of the reference DCI format 1_0 still refers to the bandwidth of core Resource Set (Control Resource Set) #0 or the bandwidth of the initial BWP, so as to ensure consistency with the conventional manner and avoid a large protocol change.

According to one aspect of the application, comprising:

transmitting the third information block;

wherein the third information block is used to indicate the second bandwidth, the second bandwidth being a positive integer, the second bandwidth being equal to the number of frequency domain resource blocks comprised by the second frequency domain resource pool; the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs, and the second bandwidth is related to a subcarrier interval of subcarriers occupied by the first signal in the frequency domain.

As an embodiment, one technical feature of the above method is that: and the first node reports the supported maximum bandwidth through the third information block.

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

transmitting first signaling, the first signaling being used to determine a first set of frequency domain resources;

transmitting a first signal in the first set of frequency domain resources;

receiving a first signal in the first set of frequency domain resources;

According to one aspect of the application, comprising:

transmitting a first information block;

According to one aspect of the application, comprising:

transmitting the second information block;

According to one aspect of the application, comprising:

receiving a third information block;

The application discloses a first node for wireless communication, including:

a first transceiver to receive first signaling, the first signaling being used to determine a first set of frequency domain resources;

a second transceiver that receives a first signal in the first set of frequency domain resources;

The application discloses a first node for wireless communication, including:

a second transceiver to transmit a first signal in the first set of frequency domain resources;

The application discloses a second node for wireless communication, including:

a third transceiver to transmit first signaling, the first signaling being used to determine a first set of frequency domain resources;

a fourth transceiver that transmits a first signal in the first set of frequency domain resources;

The application discloses a second node for wireless communication, including:

a fourth transceiver that receives a first signal in the first set of frequency domain resources;

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

selecting the smaller value of the working BWP band block and the radio frequency bandwidth to be used for determining the length of a frequency domain resource allocation domain, thereby ensuring the realization of the maximum frequency domain scheduling flexibility; the scheduling with overlarge scheduling granularity is avoided when the radio frequency bandwidth is smaller than the BWP bandwidth;

when the radio frequency bandwidth is smaller than the BWP bandwidth, the location of the radio frequency bandwidth needs to be indicated in the BWP bandwidth while the frequency domain scheduling granularity is determined using the radio frequency bandwidth;

when the sizes of multiple DCIs are aligned to Control the blind detection times, the load of the reference DCI format 1_0 still refers to the bandwidth of core Resource Set (Control Resource Set) #0 or the bandwidth of the initial BWP, so as to ensure consistency with the conventional manner and avoid major protocol changes.

Drawings

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

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

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

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

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

fig. 5 shows a flow diagram of first signaling according to an embodiment of the application;

fig. 6 shows a flow diagram of first signaling according to another embodiment of the present application;

FIG. 7 shows a schematic diagram of a first domain according to an embodiment of the present application;

fig. 8 shows a schematic diagram of a first frequency domain resource pool and a second frequency domain resource pool according to an embodiment of the present application;

FIG. 9 illustrates a diagram of a first indication value according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a first bit map according to an embodiment of the present application;

FIG. 11 shows a schematic of K1 candidate parameters according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of a target threshold according to an embodiment of the present application;

figure 13 shows a schematic diagram of a relationship between a first frequency domain resource block and a first time window according to an embodiment of the present application;

FIG. 14 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the present application;

fig. 15 shows a block diagram of a processing apparatus in a second node device according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives first signaling in step 101, the first signaling being used to determine a first set of frequency domain resources; in step 102 a first signal is received in the first set of frequency domain resources or a first signal is transmitted in the first set of frequency domain resources.

In embodiment 1, the first signaling comprises a first field used to indicate the first set of frequency domain resources comprising a positive integer number of frequency domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources.

As an embodiment, the first signaling is transmitted over a wireless interface.

As an embodiment, the first signaling is transmitted over an air interface.

As an embodiment, the first signaling is transmitted inside the first node device.

As an embodiment, the first signaling is passed from a Higher Layer (Higher Layer) of the first node device to a Physical Layer (Physical Layer).

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

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

As an embodiment, the first signaling is RRC (Radio Resource Control) layer signaling.

As an embodiment, the first signaling is MAC (Medium Access Control) layer signaling.

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

As an embodiment, the physical layer channel occupied by the first signaling includes a PDCCH.

As an embodiment, the first signaling carries all or part of fields (fields) in DCI (Downlink Control Information).

As an embodiment, the first signaling carries all or part of fields in a DCI of a given DCI (Downlink Control Information) Format (Format).

As an embodiment, the first signaling is transmitted in a RAR (Random Access Response).

As an embodiment, the first signaling comprises a RAR Grant (Grant).

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

As an embodiment, the first signaling is carried in Msg2 (message 2).

As an embodiment, the first signaling is carried in MsgB (message B).

As an embodiment, the first signaling is transmitted in a fallback rar (fallback Random Access response).

As an embodiment, the first signaling is user equipment Specific (UE-Specific).

As an embodiment, the first signaling is Cell-Specific (Cell-Specific).

As an embodiment, the first signaling is Specific to a Group of user equipments (UE Group Specific).

As an embodiment, the first signaling is carried through a PDCCH, and a PDCCH candidate carrying the first signaling belongs to a Common Search Space (CSS).

As an embodiment, the first signaling is carried through a PDCCH, and a PDCCH candidate carrying the first signaling belongs to a user equipment-Specific Search Space (USS).

As one embodiment, the first signaling is used to indicate the first set of frequency domain resources.

As an embodiment, a Frequency Domain Resource allocation (Frequency Domain Resource Assignment) field in the first signaling is used to indicate the first set of Frequency Domain resources.

As one embodiment, the first signal is broadcast.

As one embodiment, the first signal is unicast.

As an embodiment, the transmission Channel occupied by the first signal includes DL-SCH (Downlink Shared Channel) transmission.

As an embodiment, the Physical layer Channel occupied by the first signal includes a PDSCH (Physical Downlink Shared Channel).

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

As an embodiment, the Physical layer Channel occupied by the first signal includes a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the Physical layer Channel occupied by the first signal includes a PUCCH (Physical Uplink Control Channel) transmission.

As an embodiment, the first signal carries all or part of a System Information Block (SIB).

As an embodiment, all or part of the bits in one Transport Block (TB) are used for generating the first signal.

As an embodiment, the first signal is used to carry all or part of the bits in a transport block.

As an embodiment, all or part of the bits in a Code Block Group (CBG) are used to generate the first signal.

As an embodiment, the first signal is an Initial Transmission (Initial Transmission) belonging to one HARQ (Hybrid Automatic Repeat Request) Process (Process).

As an embodiment, the first signal is a retransmission (Re-transmission) belonging to one HARQ (Hybrid Automatic Repeat Request) Process (Process).

As one embodiment, the first signal is transmitted through a Semi-Persistent Scheduling (SPS) PDSCH.

As an embodiment, the first signal occupies a positive integer number of frequency domain resource blocks in the frequency domain.

As one embodiment, the first signal is transmitted through a PUSCH of a Configuration Grant (CG).

As one embodiment, the first Signal includes a Reference Signal (Reference Signal).

As one embodiment, the first signal includes a Shared Channel (SCH) and a reference signal.

As one embodiment, the first signal includes a broadcast channel.

As an embodiment, the first domain is a frequency domain resource allocation domain in the first signaling.

As an embodiment, the first domain comprises a frequency domain resource allocation domain in the first signaling.

As one embodiment, the first field includes a DCI identity (Identifier).

For one embodiment, the first domain comprises a time domain resource allocation domain.

As an embodiment, the positive integer number of frequency domain resource blocks comprised by the first set of frequency domain resources is consecutive.

As an embodiment, the positive integer number of frequency domain resource blocks comprised by the first set of frequency domain resources is discrete.

As an embodiment, the frequency domain Resource Block in this application is a Resource Block (RB).

As an embodiment, the frequency domain Resource Block in this application is a PRB (Physical Resource Block).

As an embodiment, the frequency domain Resource Block in this application is a VRB (Virtual Resource Block, VRB).

As an embodiment, the frequency domain resource block in this application occupies 12 consecutive subcarriers (subcarriers) in the frequency domain.

As an embodiment, the first frequency domain resource pool corresponds to a frequency domain resource occupied by BWP (Bandwidth Part).

As an embodiment, the first frequency domain resource pool corresponds to a frequency domain resource occupied by one carrier.

For one embodiment, the first bandwidth is equal to one of 5MHz, 10MHz, 20MHz, 30MHz, 50MHz, or 100 MHz.

As an embodiment, the first bandwidth is equal to a frequency bandwidth corresponding to Q1 consecutive PRBs, and Q1 is an integer not less than 1 and not greater than 275.

For one embodiment, the second bandwidth is equal to 20 MHz.

As an example, the second bandwidth is equal to 50 MHz.

For one embodiment, the second bandwidth is equal to 100 MHz.

As an embodiment, the second bandwidth corresponds to a maximum radio frequency bandwidth of the first node.

As an embodiment, the number of consecutive PRBs occupied by the first bandwidth and the number of consecutive PRBs occupied by the second bandwidth are different.

As an embodiment, the first bandwidth corresponds to a frequency bandwidth of a BWP.

As an embodiment, the second bandwidth corresponds to a maximum radio frequency bandwidth supported by the first node.

As an embodiment, the above sentence "for a resource allocation type of a frequency domain resource block included in a given first frequency domain resource set, the target bandwidth is used to determine the number of bits occupied by the first domain" means that: when the first set of frequency domain resources employs a resource allocation Type 0(Type 0), the target bandwidth is used to determine that the number of bits occupied by the first domain is equal to M1; when the first set of frequency domain resources employs a resource allocation Type 1(Type 1), the target bandwidth is used to determine that the number of bits occupied by the first domain is equal to M2; the M1 is a positive integer greater than 1, and the M2 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, the M1 is not equal to the M2.

As an embodiment, the above sentence "for a resource allocation type of a frequency domain resource block included in a given first frequency domain resource set, the target bandwidth is used to determine the number of bits occupied by the first domain" means that: when the resource allocation type of the frequency domain resource block included in the first frequency domain resource set is fixed and the target bandwidth is fixed, only the target bandwidth is used for determining the number of bits occupied by the first domain.

As an embodiment, the above sentence "for a resource allocation type of a frequency domain resource block included in a given first frequency domain resource set, the target bandwidth is used to determine the number of bits occupied by the first domain" means that: when the resource allocation type of the frequency domain resource block included in the first frequency domain resource set changes and the target bandwidth is fixed, the number of bits occupied by the first domain changes accordingly.

As an embodiment, the above sentence "for a resource allocation type of a frequency domain resource block included in a given first frequency domain resource set, the target bandwidth is used to determine the number of bits occupied by the first domain" means that: when the resource allocation type of the frequency domain resource block included in the first frequency domain resource set is fixed and the target bandwidth is changed, the number of bits occupied by the first domain is changed along with the target bandwidth.

As an embodiment, the resource allocation Type of the frequency domain resource blocks included in the first set of frequency domain resources is Type 0.

As an embodiment, the resource allocation Type of the frequency domain resource blocks included in the first set of frequency domain resources is Type 1.

As an embodiment, when the number of frequency domain resource blocks occupied by the first signal in the frequency domain is greater than 1, the number of PRBs included in any two frequency domain resource blocks occupied by the first signal in the frequency domain is the same.

As an embodiment, when the number of frequency domain resource blocks occupied by the first signal in the frequency domain is greater than 1, there are two first signals that have different numbers of PRBs included in the frequency domain resource blocks occupied by the first signal in the frequency domain.

As an embodiment, the first signal occupies a third frequency domain resource block and a fourth frequency domain resource block in a frequency domain, where a number of PRBs included in the third frequency domain resource block is different from a number of PRBs included in the fourth frequency domain resource block, and at least one of the third frequency domain resource block and the fourth frequency domain resource block is a most marginal frequency domain resource block occupied by the first signal in the frequency domain.

As an embodiment, the first signal occupies a third frequency domain resource block and a fourth frequency domain resource block in a frequency domain, where a number of PRBs included in the third frequency domain resource block is different from a number of PRBs included in the fourth frequency domain resource block, and at least one of the third frequency domain resource block and the fourth frequency domain resource block is the frequency domain resource block occupied by the first signal in the frequency domain and having a highest index or a lowest index.

As an embodiment, when the number of frequency domain resource blocks occupied by the first signal in the frequency domain is greater than 1, and there are two frequency domain resource blocks occupied by the first signal in the frequency domain that include different numbers of PRBs, the number of PRBs included in one frequency domain resource block other than the first frequency domain resource block occupied by the first signal in the frequency domain is different from that of the first frequency domain resource block.

As an embodiment, when the number of frequency domain resource blocks occupied by the first signal in the frequency domain is greater than 1, and there are two frequency domain resource blocks occupied by the first signal in the frequency domain that include different numbers of PRBs, the number of PRBs included in the first frequency domain resource block and the number of PRBs included in one frequency domain resource block other than the first frequency domain resource block occupied by the first signal in the frequency domain are the same.

Example 2

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

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

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

As an embodiment, the UE201 is a Reduced Capability (Reduced Capability) terminal.

As an embodiment, the radio frequency capability of the UE201 is smaller than that of a normal terminal.

As an embodiment, the bandwidth supported by the UE201 is not greater than 100 MHz.

As an embodiment, the bandwidth supported by the UE201 is at least one of 20MHz, 50MHz, or 100 MHz.

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

As an embodiment, the gNB203 supports serving both normal terminals and reduced capability terminals on one carrier.

As an embodiment, the gNB203 supports serving both normal terminals and reduced capability terminals on one BWP (Bandwidth Part).

As an embodiment, the bandwidth supported by the gNB203 is greater than the bandwidth corresponding to the radio frequency capability of the first node.

Example 3

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

As an embodiment, the third information block in the present application is generated in the RRC 306.

As an embodiment, the third information block in the present application is generated in the MAC302 or the MAC 352.

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

As an embodiment, the second node is a terminal.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: receiving first signaling, the first signaling being used to determine a first set of frequency domain resources; receiving a first signal in the first set of frequency domain resources or transmitting a first signal in the first set of frequency domain resources; the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first signaling, the first signaling being used to determine a first set of frequency domain resources; receiving a first signal in the first set of frequency domain resources or transmitting a first signal in the first set of frequency domain resources; the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting first signaling, the first signaling being used to determine a first set of frequency domain resources; transmitting a first signal in the first set of frequency domain resources or receiving a first signal in the first set of frequency domain resources; the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting first signaling, the first signaling being used to determine a first set of frequency domain resources; transmitting a first signal in the first set of frequency domain resources or receiving a first signal in the first set of frequency domain resources; the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources.

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

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

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

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

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

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

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

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

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

For one embodiment, at least the first four of the antennas 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive a first signal in the first set of frequency domain resources; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are configured to send a first signal in the first set of frequency domain resources.

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

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

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

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send a third information block; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive a third information block.

Example 5

Embodiment 5 illustrates a flow chart of the first signaling, as shown in fig. 5. In FIG. 5, a first node U1 communicates with a second node N2 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application. In the case of no conflict, the sub embodiment, the subsidiary embodiment in embodiment 5 can be applied to embodiment 6.

For theFirst node U1The third information block is sent in step S10, the first information block is received in step S11, the second information block is received in step S12, the first signaling is received in step S13, and the first signal is received in the first set of frequency domain resources in step S14.

For theSecond node N2The third information block is received in step S20, the first information block is transmitted in step S21, the second information block is transmitted in step S22, the first signaling is transmitted in step S23, and the first signal is transmitted in the first set of frequency domain resources in step S24.

In embodiment 5, the first signaling is used to determine a first set of frequency domain resources; the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller value of the comparison of the first bandwidth and the second bandwidth is equal to a target bandwidth, and for a resource allocation type of a frequency domain resource block included in the given first set of frequency domain resources, the target bandwidth is used to determine the number of bits occupied by the first domain; the first information block indicates at least one of a first alternative type or a second alternative type, the first type being one of the first alternative type and the second alternative type; when only the first alternative type is indicated, the first type is the first alternative type; when only the second alternative type is indicated, the first type is the second alternative type; when the first alternative type and the second alternative type are both indicated, the first domain is used to indicate the first type from among the first alternative type and the second alternative type; the second information block is used to indicate K1 candidate parameters, the size of the resource block group is a candidate parameter corresponding to the target bandwidth among the K1 candidate parameters; the K1 is a positive integer greater than 1; the third information block is used to indicate the second bandwidth, the second bandwidth being a positive integer, the second bandwidth being equal to a number of frequency domain resource blocks comprised by the second frequency domain resource pool; the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs, and the second bandwidth is related to a subcarrier interval of subcarriers occupied by the first signal in the frequency domain.

As an embodiment, when the first bandwidth is larger than the second bandwidth, the first domain is used to determine the second frequency-domain resource pool from the first frequency-domain resource pool, or a domain other than the first domain included in the first signaling is used to determine the second frequency-domain resource pool from the first frequency-domain resource pool.

As a sub-embodiment of this embodiment, the first domain is used to indicate a target frequency domain resource block from the first frequency domain resource pool, the target frequency domain resource block being a starting frequency domain resource block of the frequency domain resource blocks occupied by the second frequency domain resource pool.

As a sub-embodiment of this embodiment, the first signaling includes a second field, and the second field is used for indicating a target frequency domain resource block from the first frequency domain resource pool, where the target frequency domain resource block is a starting frequency domain resource block in frequency domain resource blocks occupied by the second frequency domain resource pool.

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a starting frequency domain resource block occupied by the second frequency domain resource pool in a frequency domain in a time domain time window.

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a starting VRB occupied by the second frequency domain resource pool in a frequency domain in a time domain time window.

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a starting frequency domain resource block occupied by the second frequency domain resource pool in a frequency domain in a Slot (Slot).

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a starting frequency domain resource block occupied by the second frequency domain resource pool in a frequency domain in a Sub-slot (Sub-slot).

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a starting frequency domain resource block occupied by the second frequency domain resource pool in a frequency domain in a Mini-slot (Mini-slot).

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a frequency resource block with the lowest initial frequency in the frequency domain resource blocks occupied by the second frequency domain resource pool in the frequency domain.

As a sub-embodiment of the two embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is a frequency resource block with the highest initial frequency in the frequency domain resource blocks occupied by the second frequency domain resource pool in the frequency domain.

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is the frequency resource block at the most edge in the frequency domain resource blocks occupied by the second frequency domain resource pool in the frequency domain.

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is the frequency resource block with the smallest index in the frequency domain resource blocks occupied by the second frequency domain resource pool in the frequency domain.

As an auxiliary embodiment of the two sub-embodiments, the phrase "the target frequency domain resource block is a starting frequency domain resource block in the frequency domain resource blocks occupied by the second frequency domain resource pool" includes the following meanings: the target frequency domain resource block is the frequency resource block with the largest index in the frequency domain resource blocks occupied by the second frequency domain resource pool in the frequency domain.

As an embodiment, the index of the target frequency domain resource block is a non-negative integer.

As an embodiment, the index of the target frequency domain resource block is a positive integer.

As an embodiment, the index of the target frequency domain resource block is an index of the target frequency domain resource block in frequency domain resource blocks which are consecutive in positive integer greater than 1 and indexed according to Ascending Order of frequency.

As an embodiment, the index of the target frequency domain resource block is an index of the target frequency domain resource block in frequency domain resource blocks which are consecutive in a positive integer greater than 1 and indexed according to a Descending Order of frequency (Descending Order).

As an embodiment, the index of the target frequency domain resource block is an index of the target frequency domain resource block in a positive integer number greater than 1 of frequency domain discrete frequency domain resource blocks indexed in Ascending Order of frequency (Ascending Order).

As an embodiment, the index of the target frequency domain resource block is an index of the target frequency domain resource block in a positive integer number greater than 1 of frequency domain discrete frequency domain resource blocks indexed in Descending Order of frequency (desending Order).

As an embodiment, the number of RBs occupied by the second frequency domain resource pool is fixed.

As an embodiment, the number of RBs occupied by the second frequency domain resource pool is related to the capability of the first node U1.

As an embodiment, the number of RBs occupied by the second frequency domain resource pool cannot be configured through higher layer signaling.

As an embodiment, the number of RBs occupied by the second frequency domain resource pool cannot be configured through physical layer signaling.

As an embodiment, the first pool of frequency-domain resources comprises N1 subbands, and the second pool of frequency-domain resources is one subband of the N1 subbands; the first domain is used to indicate the second pool of frequency domain resources from the N1 subbands or a domain other than the first domain included in the first signaling is used to indicate the second pool of frequency domain resources from the N1 subbands; the N1 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, the sub-band is a subband.

As a sub-embodiment of this embodiment, the sub-band is a narrowband.

As a sub-embodiment of this embodiment, the sub-band is a reduced band.

As an embodiment, it is RRC signaling that carries the first information block.

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

As an embodiment, the first information block is transmitted over an air interface.

As an embodiment, the first information block is transmitted over a wireless interface.

As an embodiment, the transmission start time of the first information block is earlier than the transmission start time of the first signaling.

As an embodiment, the transmission start time of the first information block is later than the transmission start time of the first signaling.

As an embodiment, the first Information Block includes MIB (Master Information Block).

As an embodiment, the first information block includes a Payload (Payload) in a PBCH (Physical Broadcast Channel).

As an embodiment, the first information block includes physical layer information carried by PBCH.

As an embodiment, the first information block is carried through a PDCCH.

As one embodiment, the first information block is carried over a PDSCH.

As an embodiment, the first information block includes all or part of fields (fields) in one DCI format.

As an embodiment, the first information block includes higher layer information.

For one embodiment, the first information block includes physical layer information.

As an embodiment, the first information block includes higher layer information and physical layer information.

As an embodiment, the first information block includes a higher layer generated Payload and a physical layer generated Payload (Payload).

As one embodiment, the first information block includes RR-layer information.

As an embodiment, the first Information block includes all or part of an IE (Information Element) in signaling of an RRC layer.

As an embodiment, the first information block includes all or a part of a Field (Field) in signaling of an RRC layer.

As an embodiment, the first Information Block includes all or part of IEs in a System Information Block (SIB).

As an embodiment, the first Information Block includes all or part of fields in a System Information Block (SIB).

As an embodiment, the first Information block includes an IE (Information Element) in the MIB of "pdcch-ConfigSIB 1".

As an embodiment, the first Information block comprises a field of a "controlled resource set zero" in an IE (Information Element) of the MIB "pdcch-ConfigSIB 1".

As an embodiment, the first information block includes all or part of a Field (Field) in the IE "BWP".

As an embodiment, the first information block includes all or part of a Field (Field) in the IE "BWP-Downlink".

As an embodiment, the first information block includes all or part of a Field (Field) in the IE "BWP-Uplink".

As an embodiment, the first information block includes all or part of a Field (Field) in the IE "BWP-downlinlnkcommon".

As an embodiment, the first information block includes all or part of a Field (Field) in the IE "BWP-downlinleddedcate".

As an embodiment, the first information block comprises all or part of the Field (Field) in the IE "BWP-UplinkCommon".

As an embodiment, the first information block includes all or part of a Field (Field) in the IE "BWP-UplinkDedicated".

As an embodiment, the first information block is Cell-Specific.

As an embodiment, the first information block is user equipment Specific (UE-Specific).

As an embodiment, the first information block comprises all or part of a Field (Field) in the IE "ControlResourceSet".

As an embodiment, the first information block comprises all or part of a Field (Field) in the IE "SearchSpace".

As an embodiment, the first information block comprises all or part of the Field (Field) in the IE "PDCCH-Config".

As an embodiment, the first information block comprises all or part of the Field (Field) in the IE "PDCCH-ConfigCommon".

As an embodiment, the first information block comprises all or part of the Field (Field) in the IE "PDCCH-ConfigSIB 1".

As an embodiment, the first alternative Type is frequency domain resource allocation Type 0.

As an embodiment, the second alternative Type is a frequency domain resource allocation Type 1.

As an embodiment, the first domain includes a first indication value used to determine a first frequency domain resource block and a first number; the first number is a positive integer, and the first number is equal to the number of frequency domain resource blocks occupied by the first signal in a frequency domain; the first frequency domain resource block is a starting frequency domain resource block occupied by the first signal in a frequency domain; the first indication value and the target index are linearly related; when the target bandwidth is equal to the first bandwidth, the target index is an index of the first frequency-domain resource block in the first frequency-domain resource pool; when the target bandwidth is equal to the second bandwidth, the target index is an index of the first frequency-domain resource block in the second frequency-domain resource pool.

As a sub-embodiment of this embodiment, when the first domain includes the first indication value, the resource allocation Type of the frequency domain resource block included in the first frequency domain resource set is Type 1.

As a sub-embodiment of this embodiment, the number of bits occupied by the first field is equal to

Wherein N is^sizeIs the number of RBs occupied by the target bandwidth,

represents the smallest integer not less than X.

As a sub-embodiment of this embodiment, the first indication Value is an RIV (Resource Indicator Value).

As a sub-embodiment of this embodiment, the first Indicator Value is a Start and Length Indicator Value (SLIV).

As a sub-embodiment of this embodiment, the first indication value may be equal to 0.

As a sub-embodiment of this embodiment, the first indication value is greater than 0.

As a sub-embodiment of this embodiment, when the target bandwidth is equal to the first bandwidth, the first indication value is used to indicate the first frequency domain resource block from the first frequency domain resource pool.

As a sub-embodiment of this embodiment, when the target bandwidth is equal to the second bandwidth, the first indication value is used to indicate the first frequency domain resource blocks from the second frequency domain resource pool.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first indication value is determined by the first node U1 device in this application to be the first frequency domain resource block and the first number.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first indication value is used to indicate the first frequency domain resource block and the first number.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first indication value is one of Z1 alternative indication values, the Z1 alternative indication values correspond to Z1 resource allocation combinations one by one, and the Z1 is a positive integer greater than 1; any one of the Z1 resource allocation combinations includes a starting frequency-domain resource block index and a frequency-domain resource block number, and the index and the first number of the first frequency-domain resource block belong to a resource allocation combination corresponding to the first indication value in the Z1 resource allocation combinations.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first frequency domain resource blocks and the first number are used to calculate the first indication value.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first frequency domain resource blocks and the first number are used by the second node device in this application to determine the first indication value.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first indication value is an RIV and the first frequency domain resource blocks and the first number are a start index and a length value, respectively, used to calculate the RIV represented by the first indication value.

As a sub-embodiment of this embodiment, the first number is equal to a length value in an RIV.

As a sub-embodiment of this embodiment, the expression "said first indication value corresponds to a first frequency domain resource block and a first number" in the claims includes the following meaning: the first indication value is a SLIV, and the first frequency-domain resource block and the first number are a start index and a length value, respectively, used to calculate the SLIV represented by the first indication value.

As a sub-embodiment of this embodiment, the first number is equal to a length value in one SLIV.

As a sub-embodiment of this embodiment, the first frequency domain resource block is a starting resource block occupied by the first frequency domain resource set.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is a starting frequency domain resource block occupied by the first signal in a frequency domain in a time domain time window.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is a starting virtual resource block occupied by the first signal in a frequency domain.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is a starting frequency domain resource block occupied by the first signal in a frequency domain in one slot.

As a subsidiary embodiment of the sub-embodiment, the first frequency domain resource block is a starting frequency domain resource block occupied by the first signal in a frequency domain in a half slot.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is a frequency resource block with a lowest starting frequency in frequency domain resource blocks occupied by the first signal in a frequency domain.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is a frequency resource block with a highest starting frequency among frequency domain resource blocks occupied by the first signal in a frequency domain.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is an edge frequency resource block of frequency domain resource blocks occupied by the first signal in a frequency domain.

As an auxiliary embodiment of the sub-embodiment, the first frequency domain resource block is a frequency resource block with the smallest index among frequency domain resource blocks occupied by the first signal in the frequency domain.

As a sub-embodiment of this embodiment, the first frequency domain resource block is a frequency resource block with the largest index among frequency domain resource blocks occupied by the first signal in the frequency domain.

As an auxiliary embodiment of this sub-embodiment, the first frequency domain resource block is a frequency resource block with a smallest index in the first frequency domain resource pool in this application, among frequency domain resource blocks occupied by the first signal in the frequency domain.

As an auxiliary embodiment of this sub-embodiment, the first frequency domain resource block is a frequency resource block with a largest index in the first frequency domain resource pool in this application, among frequency domain resource blocks occupied by the first signal in a frequency domain.

As a sub-embodiment of this embodiment, the index of the first frequency domain resource block is a non-negative integer.

As a sub-embodiment of this embodiment, the index of the first frequency domain resource block is a positive integer.

As a sub-embodiment of this embodiment, the index of the first frequency domain resource block is an index of the first frequency domain resource block in frequency domain resource blocks that are consecutive in positive integer greater than 1 and are indexed in ascending order of frequency.

As a sub-embodiment of this embodiment, the index of the first frequency domain resource block is an index of the first frequency domain resource block in frequency domain resource blocks that are consecutive in positive integer greater than 1 and are indexed in descending order of frequency.

As a sub-embodiment of this embodiment, the index of the first frequency domain resource block is an index of the first frequency domain resource block in frequency domain resource blocks which are discrete in positive integer greater than 1 and are indexed in ascending order of frequency.

As a sub-embodiment of this embodiment, the index of the first frequency domain resource block is an index of the first frequency domain resource block in frequency domain resource blocks that are discrete in a positive integer greater than 1 and are indexed in descending order of frequency.

As a sub-embodiment of this embodiment, the first indication value and the index of the first frequency domain resource block are linearly and positively correlated.

As a sub-embodiment of this embodiment, the first indication value and the index of the first frequency-domain resource block are linearly inversely related.

As a sub-embodiment of this embodiment, a correlation coefficient of a linear correlation of the first indication value and the first frequency-domain resource block is greater than 0.

As a sub-embodiment of this embodiment, a correlation coefficient of a linear correlation of the first indication value and the first frequency-domain resource block is smaller than 0.

As a sub-embodiment of this embodiment, a magnitude relationship between the difference of the first number minus 1 and the reference number is used to determine whether the first indication value and the first frequency-domain resource block are linearly positively correlated or linearly negatively correlated.

As a subsidiary embodiment of the sub-embodiment, the reference number is equal to a quotient obtained by dividing the number of PRBs occupied by the target bandwidth by 2.

As a subsidiary embodiment of the sub-embodiment, when a difference obtained by subtracting 1 from the first number is not greater than the reference number, the first indication value is in positive linear correlation with the first frequency-domain resource block.

As a subsidiary embodiment of this sub-embodiment, when a difference value of subtracting 1 from the first number is greater than the reference number, the first indication value and the first frequency domain resource block are linearly inversely correlated.

As a subsidiary embodiment of the sub-embodiment, when a difference value obtained by subtracting 1 from the first number is not greater than the reference number, a correlation coefficient between the first indication value and the first frequency-domain resource block is equal to 1.

As a subsidiary embodiment of the sub-embodiment, when a difference value obtained by subtracting 1 from the first number is greater than the reference number, a correlation coefficient between the first indication value and the first frequency-domain resource block is equal to-1.

As a sub-embodiment of this embodiment, the first indication value is used to determine the RB_startThe index of the first frequency-domain resource block is RB_start。

As a sub-embodiment of this embodiment, the first indicator value is used to determine L_RBsSaid first number is equal to L_RBs。

As a sub-embodiment of this embodiment, the first number is the number of resource blocks occupied by the first set of frequency domain resources.

As an embodiment, the first domain comprises a first bitmap, one of the target bandwidth and the first bandwidth is used to determine a resource block group size, the resource block group size being a positive integer; any bit in the first bitmap corresponds to one resource block group, and any bit in the first bitmap is used for indicating whether a frequency domain resource block included in the corresponding resource block group belongs to the first frequency domain resource set or not; the resource block group corresponding to any one bit in the first bitmap comprises a positive integer number of frequency domain resource blocks, and the size of the resource block group is used for determining the number of the frequency domain resource blocks included in the resource block group corresponding to any one bit in the first bitmap; the target bandwidth is used to determine a total number of frequency domain resource blocks included in the resource block group corresponding to the first bitmap.

As a sub-embodiment of this embodiment, when the first domain includes the first bitmap, the resource allocation Type of the frequency domain resource blocks included in the first set of frequency domain resources is Type 0.

As a sub-embodiment of this embodiment, the resource Block group is RBG (resource Block group).

As a sub-embodiment of this embodiment, the target bandwidth is used to determine the resource block group size.

As a sub-embodiment of this embodiment, the first bandwidth is used for determining the resource block group size.

As a sub-embodiment of this embodiment, the resource block group size refers to the number of VRBs included in the resource block group.

As a sub-embodiment of this embodiment, the resource block group size is equal to one of 2,4,8 or 16.

As a sub-embodiment of this embodiment, the first bandwidth is smaller than the second bandwidth, the first frequency-domain resource pool is divided into L1 RBGs according to the resource block group size, the L1 is a positive integer greater than 1, the first domain is used to indicate L2 RBGs from the L1 RBGs, the L2 is a positive integer no greater than the L1, the first domain is used to indicate the L2 RBGs from the L1 RBGs, and the first set of frequency-domain resources occupies the L2 RBGs.

As an auxiliary embodiment of the sub-embodiment, the number of VRBs occupied by one RBG out of the L1 RBGs is different from the number of VRBs occupied by the other RBGs out of the L1 RBGs.

As a sub-embodiment of this embodiment, the first bandwidth is not less than the second bandwidth, the second frequency-domain resource pool is divided into L3 RBGs according to the resource block group size, the L3 is a positive integer greater than 1, the first domain is used to indicate L4 RBGs from the L3 RBGs, the L4 is a positive integer no greater than the L3, the first domain is used to indicate the L4 RBGs from the L3 RBGs, and the first set of frequency-domain resources occupies the L4 RBGs.

As an auxiliary embodiment of the sub-embodiment, the number of VRBs occupied by one RBG out of the L3 RBGs is different from the number of VRBs occupied by the other RBGs out of the L3 RBGs.

As an embodiment, the K1 candidate parameters belong to a target candidate parameter set, the target candidate parameter set being one of a first candidate parameter set or a second candidate parameter set; the second information block is used to indicate the target candidate parameter set from the first candidate parameter set and the second candidate parameter set.

As a sub-embodiment of this embodiment, the first set of candidate parameters includes K1 positive integers.

As an embodiment, it is RRC signaling that carries the second information block.

As an embodiment, the second information block comprises all or part of the fields in the IE "PDSCH-Config".

As an embodiment, the second information block comprises at least RBG-size in the IE PDSCH-Config.

As an embodiment, the second information block comprises at least a resourceAllocation field in the IE "PDSCH-Config".

As an embodiment, the resource allocation field in the IE "PDSCH-Config" included in the second information block is set to dynamic switch.

As an embodiment, the resource allocation field in the IE "PDSCH-Config" included in the second information block is set to resource allocation type 0.

As an embodiment, the second information block comprises all or part of the fields in the IE "PUSCH-Config".

As an embodiment, the second information block comprises at least RBG-size in the IE PUSCH-Config.

As an embodiment, the second information block comprises at least a resourceAllocation field in the IE PUSCH-Config.

As an embodiment, the resource allocation field in the IE "PUSCH-Config" included in the second information block is set to dynamic switch.

As an embodiment, the resource allocation field in the IE "PUSCH-Config" included in the second information block is set to resource allocation type 0.

As an embodiment, the second information block comprises all or part of the fields in the IE "ConfiguredGrantConfig".

As an embodiment, said second information block comprises at least RBG-size in the IE "configuredgontconfig".

As an embodiment, said second information block comprises at least a resourceAllocation field in the IE "configuredggrantconfig".

As an embodiment, the resource allocation field in the IE "configuredgmentconfig" included in the second information block is set to dynamic switch.

As an embodiment, the resourcelalocationfield in the IE "ConfiguredGrantConfig" comprised in said second information block is set to resourcelalocationtype 0.

As one embodiment, a third bandwidth is used to determine a target threshold, the third bandwidth being greater than the second bandwidth; when the number of bits occupied by the first domain and the second domain is larger than the target threshold value, part of bits in the first domain are truncated; when the bit number occupied by the first domain and the second domain is smaller than the target threshold value, the first signaling is padded with zero; the first signaling includes the second domain, which is used to determine the second pool of frequency domain resources from the first pool of frequency domain resources.

As a sub-embodiment of this embodiment, the third bandwidth is the size of CORESET # 0.

As a sub-embodiment of this embodiment, the third bandwidth is the bandwidth occupied by CORESET # 0.

As a sub-embodiment of this embodiment, the third bandwidth is the number of RBs occupied by CORESET # 0.

As a sub-embodiment of this embodiment, the third bandwidth is a bandwidth of an initial downlink (BWP).

As a sub-embodiment of this embodiment, the target threshold is the number of bits occupied by a Frequency Domain Resource allocation (Frequency Domain Resource allocation) Domain in the DCI Format 1_0 under the third bandwidth.

As a sub-embodiment of this embodiment, when the number of bits occupied by the first domain and the second domain together is greater than the target threshold, the partial bits in the first domain, which are the bits located at the forefront (Most significan) in the first domain, are truncated.

As a sub-embodiment of this embodiment, after the partial bits in the first domain are truncated, the remaining number of bits in the first domain is equal to the target threshold.

As a sub-embodiment of this embodiment, when the number of bits jointly occupied by the first domain and the second domain is smaller than the target threshold, the frequency domain resource allocation domain in the first signaling is zero-padded, and the frequency domain resource allocation domain after zero-padding is equal to the target threshold.

As a sub-embodiment of this embodiment, when the number of bits jointly occupied by the first field and the second field is smaller than the target threshold, a payload size (payload size) of the first signaling after zero padding is equal to a payload size of DCI Format 1_0 in the third bandwidth.

As an embodiment, the third information block is transmitted over an air interface.

As an embodiment, the third information block is transmitted over a wireless interface.

As an embodiment, the third information block includes Capability (Capability) information of the first node U1.

As an embodiment, the third information block is used to indicate the capabilities of the first node U1.

As an embodiment, the third information block is carried by higher layer signaling.

As an embodiment, the third information block is carried by physical layer signaling.

As an embodiment, a transmission start time of the third information block is earlier than a reception start time of the first signaling.

As an embodiment, the transmission start time of the third information block is later than the reception start time of the first signaling.

As an embodiment, the transmission start time of the third information block is earlier than the reception start time of the first information block.

As an embodiment, the transmission start time of the third information block is later than the reception start time of the first information block.

As an embodiment, the third information block includes all or a part of a Field (Field) in an RRC layer signaling.

As an embodiment, the third information block includes all or part of an IE in RRC layer signaling.

As an embodiment, the third information block includes all or part of a Field (Field) in a MAC layer signaling.

As an embodiment, the third information block includes all or part of an IE in a MAC layer signaling.

As an embodiment, the third Information block includes all or a part of Field (Field) in a UCI (Uplink Control Information) format.

As an embodiment, the third information block is transmitted over a PUSCH.

As an embodiment, the third information block is transmitted via UL-SCH.

As an embodiment, the third information block is transmitted through a PUCCH (Physical Uplink Control Channel).

As an embodiment, the expression "said third information block is used to indicate said second bandwidth" in the claims includes the following meaning: the third information block is used by the first node U1 in this application to indicate the second bandwidth.

As an embodiment, the expression "said third information block is used to indicate said second bandwidth" in the claims includes the following meaning: the third information block explicitly indicates the second bandwidth.

As an embodiment, the expression "said third information block is used to indicate said second bandwidth" in the claims includes the following meaning: the third information block implicitly indicates the second bandwidth.

As an embodiment, the expression "said third information block is used to indicate said second bandwidth" in the claims includes the following meaning: the third information block indicates a type of the first node U1, the type of the first node U1 being used to determine the second bandwidth.

As an embodiment, the expression "said third information block is used to indicate said second bandwidth" in the claims includes the following meaning: the third information block indicates a version number of the first node U1, the version number of the first node U1 being used to determine the second bandwidth.

As an embodiment, the above phrase that the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs includes: the second bandwidth varies with a variation of a frequency range to which a frequency domain resource occupied by the first signal belongs.

As an embodiment, the above phrase that the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs includes: the higher the center frequency point of the frequency range to which the frequency domain resource occupied by the first signal belongs is, the larger the second bandwidth is.

As an embodiment, the above phrase that the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs includes: the lower the center frequency point of the frequency range to which the frequency domain resource occupied by the first signal belongs, the smaller the second bandwidth.

As an embodiment, the above phrase that the second bandwidth is related to a subcarrier spacing of subcarriers occupied by the first signal in a frequency domain means that: the second bandwidth varies with a variation in a subcarrier spacing of subcarriers occupied by the first signal.

As an embodiment, the above phrase that the second bandwidth is related to a subcarrier spacing of subcarriers occupied by the first signal in a frequency domain means that: the smaller the subcarrier spacing of the subcarriers occupied by the first signal is, the smaller the second bandwidth is.

As an embodiment, the above phrase that the second bandwidth is related to a subcarrier spacing of subcarriers occupied by the first signal in a frequency domain means that: the larger the subcarrier spacing of the subcarriers occupied by the first signal is, the larger the second bandwidth is.

Example 6

Embodiment 6 illustrates another flow chart of the first signaling, as shown in fig. 6. In FIG. 6, a first node U3 communicates with a second node N4 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U3The third information block is transmitted in step S30, the first information block is received in step S31, the second information block is received in step S32, the first signaling is received in step S33, and the first signal is transmitted in the first set of frequency domain resources in step S34.

For theSecond node N4The third information block is received in step S40, the first information block is transmitted in step S41, the second information block is transmitted in step S42, the first signaling is transmitted in step S43, and the first signal is received in the first set of frequency domain resources in step S44.

In embodiment 6, the first signaling is used to determine a first set of frequency domain resources; the first signaling comprises a first field used to indicate the first set of frequency-domain resources comprising a positive integer number of frequency-domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller value of the comparison of the first bandwidth and the second bandwidth is equal to a target bandwidth, and for a resource allocation type of a frequency domain resource block included in the given first set of frequency domain resources, the target bandwidth is used to determine the number of bits occupied by the first domain; the first information block indicates at least one of a first alternative type or a second alternative type, the first type being one of the first alternative type and the second alternative type; when only the first alternative type is indicated, the first type is the first alternative type; when only the second alternative type is indicated, the first type is the second alternative type; when the first alternative type and the second alternative type are both indicated, the first domain is used to indicate the first type from among the first alternative type and the second alternative type; the second information block is used to indicate K1 candidate parameters, the size of the resource block group is a candidate parameter corresponding to the target bandwidth among the K1 candidate parameters; the K1 is a positive integer greater than 1; the third information block is used to indicate the second bandwidth, the second bandwidth being a positive integer, the second bandwidth being equal to a number of frequency domain resource blocks comprised by the second frequency domain resource pool; the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs, and the second bandwidth is related to a subcarrier interval of subcarriers occupied by the first signal in the frequency domain.

Example 7

Example 7 illustrates a schematic diagram of a first domain, as shown in fig. 7. In fig. 7, case a corresponds to a scenario in which the first domain includes the first indication value, and case B corresponds to a scenario in which the first domain includes the first bitmap.

As an embodiment, the first Field is a Field (Field) in a DCI Format (Format).

As an embodiment, the first domain is a domain (Field) for allocating frequency domain resources.

As one embodiment, the first domain is "Frequency domain resource assignment".

As an embodiment, the expression "said first domain is used for determining said first indication value" in the claims includes the following meanings: the first domain is used by the first node in the present application to determine the first indication value.

As an embodiment, the expression "said first domain is used for determining said first indication value" in the claims includes the following meanings: the first field explicitly indicates the first indication value.

As an embodiment, the expression "said first domain is used for determining said first indication value" in the claims includes the following meanings: the first domain implicitly indicates the first indication value.

As an embodiment, all bits comprised by the first field are used to indicate the first indication value.

As an embodiment, only a part of bits included in the first field is used to indicate the first indication value.

As an embodiment, the number of bits comprised by the first field is a positive integer.

As an embodiment, the first field comprises a number of bits equal to a bit width (Bitwidth) of the first field.

As an embodiment, the expression "said first domain comprises a first bitmap" in the claims includes the following meanings: the first domain is used by the first node in the present application to determine the first bitmap.

As an embodiment, the expression "said first domain comprises a first bitmap" in the claims includes the following meanings: the first field explicitly indicates the first bitmap.

As an embodiment, the expression "said first domain comprises a first bitmap" in the claims includes the following meanings: the first domain implicitly indicates the first bitmap.

For one embodiment, the first field includes only the first indication value.

As one embodiment, the first field includes information bits outside of the first indication value.

As an embodiment, the first domain comprises only the first bitmap.

For one embodiment, the first field includes information bits outside the first bitmap.

As an embodiment, the first field comprises 1 bit, the 1 bit being used to indicate the first type from the first alternative type and the second alternative type.

Example 8

Embodiment 8 illustrates a schematic diagram of a first frequency domain resource pool and a second frequency domain resource pool, as shown in fig. 8. In fig. 8, the frequency bandwidth occupied by the first frequency domain resource pool is greater than the frequency bandwidth occupied by the second frequency domain resource pool.

As an embodiment, the frequency bandwidth occupied by the first frequency domain resource pool is equal to a first bandwidth, the frequency bandwidth occupied by the second frequency domain resource pool is equal to a second bandwidth, and the first bandwidth is greater than the second bandwidth.

As one embodiment, the first frequency domain resource pool is divided into N1 frequency domain resource sub-pools, and the second frequency domain resource pool is one of the N1 frequency domain resource sub-pools.

As a sub-embodiment of this embodiment, the first domain is used to indicate the second frequency-domain resource pool from the N1 frequency-domain resource sub-pools.

As a sub-embodiment of this embodiment, other fields in the first signaling and outside the first field are used to indicate the second frequency-domain resource pool from the N1 frequency-domain resource sub-pools.

Example 9

Example 9 illustrates a schematic diagram of a first indication value, as shown in fig. 9. In fig. 9, each rectangle represents a variable, and the arrows represent operational relationships.

As an embodiment, when a difference of the first number minus 1 is not greater than a reference number, the first indication value satisfies:

RIV＝N^size(L_RBs-1)+RB_start

wherein RIV represents said first indicator value, L_RBsRepresents said first number, N^sizeRepresenting the number of PRBs, RBs, occupied by said target bandwidth_startAnd an index representing the first frequency domain resource block, wherein the reference number is equal to a quotient obtained by dividing the number of PRBs occupied by the target bandwidth by 2.

As an embodiment, when a difference of the first number minus 1 is greater than a reference number, the first indication value satisfies:

RIV＝N^size(N^size-L_RBs+1)+(N^size-1-RB_Start)

As one embodiment, when the target bandwidth is equal to the first bandwidth, an RB_startRepresents an index of the first frequency-domain resource block in the first frequency-domain resource pool.

As an embodiment, when the target bandwidth is equal to the second bandwidth, the RB_startRepresents an index of the first frequency-domain resource block in the second frequency-domain resource pool.

Example 10

Embodiment 10 illustrates a schematic diagram of a first bit map, as shown in fig. 10. In fig. 10, each rectangle represents a bit in the first bitmap, which is used to indicate an RBG.

As an embodiment, the target bandwidth is used to determine an RBG size P, and the length of the first bitmap is equal to:

wherein N is^sizeRepresents the PRBs occupied by the target bandwidth,

representing the starting frequency domain location occupied by the target bandwidth.

As a sub-embodiment of this embodiment, the size of the RBG numbered 0 is equal to

As an embodiment, the first bandwidth is used to determine an RBG size P, the length of the first bitmap is equal to:

wherein N is^size1Represents a PRB occupied by the first bandwidth,

indicating a starting frequency domain location occupied by the first bandwidth.

Example 11

Example 11 illustrates a schematic diagram of K1 candidate parameters, as shown in fig. 11. In fig. 11, the K1 candidate parameters belong to a target candidate parameter set, which is a first candidate parameter set shown in the drawing, or a second candidate parameter set shown in the drawing.

As an embodiment, the first signaling is used to indicate that the target candidate parameter set is the first candidate parameter set.

As an embodiment, the first signaling is used to indicate that the target candidate parameter set is the second candidate parameter set.

As an embodiment, the first field is used to indicate that the target candidate parameter set is the first candidate parameter set.

As an embodiment, the first field is used to indicate that the target candidate parameter set is the second candidate parameter set.

As an embodiment, the candidate parameters included in the first candidate parameter set are all positive integers.

As an embodiment, the candidate parameters included in the second candidate parameter set are all positive integers.

Example 12

Example 12 a schematic diagram of a target threshold is illustrated, as shown in fig. 12. In fig. 12, case a indicates that the number of bits occupied by the first and second domains together is greater than the target threshold; case B represents that the number of bits jointly occupied by the first domain and the second domain is less than the target threshold; a small rectangle in the figure identifies one bit of information.

As an implementation, when the number of bits jointly occupied by the first domain and the second domain is greater than the target threshold, a part of bits in the first domain is truncated.

As an implementation, when the number of bits jointly occupied by the first and second fields is smaller than the target threshold, the end of the first signaling is padded with zero.

As an implementation, when the number of bits jointly occupied by the first and second domains is smaller than the target threshold, the ends of the first and second domains are zero-padded.

As one embodiment, the target threshold is equal to a positive integer greater than 1.

Example 13

Embodiment 13 illustrates a schematic diagram of a relationship between a first frequency domain resource block and a first time window according to an embodiment of the present application, as shown in fig. 13. In fig. 13, the horizontal axis represents time, the vertical axis represents frequency, each rectangle represents a frequency domain resource block in the first frequency domain resource pool in the present application, the first time window is a time window # n or a time window # n +1, each filled rectangle represents a frequency domain resource block occupied by the first signal, and the cross-hatched and cross-hatched filled rectangles represent the initial frequency domain resource block occupied by the first signal in the time window # n and the time window # n +1, respectively.

In embodiment 13, the first frequency domain resource block in this application is a starting frequency domain resource block occupied by the first signal in a frequency domain in a first time window, a position of the first time window in a time domain and the second number are used to determine an index of the first frequency domain resource block, and the first signaling in this application is used to determine the first time window.

As an embodiment, the first time window is one time Slot (Slot).

As an embodiment, the first time window is a half time slot.

As an embodiment, the first time window comprises a positive integer number of OFDM symbols (Symbol).

For one embodiment, the first time window includes a positive integer number of time-domain consecutive time slots.

As an example, the first time window is a Frequency Hopping (FH) interval.

As an embodiment, the first time window belongs to one hop interval.

As an embodiment, the position of the first time window in the time domain refers to an index of the first time window.

As an embodiment, the position of the first time window in the time domain is an index of a Hop (Hop) represented by a hopping interval to which the first time window belongs.

As an embodiment, the first time window belongs to a first hop.

As an embodiment, the first time window belongs to a second hop.

As an example, the first time window belongs to one Hop (Hop) in a frequency hopping procedure.

As an embodiment, the first time window belongs to one Hop (Hop) outside the first Hop.

As an embodiment, the position of the first time window in the time domain refers to an index of a Hop (Hop) to which the first time window belongs.

For one embodiment, the first signal occupies the first time window in the time domain.

As an embodiment, the first signal occupies the first time window and time domain resources outside the first time window in the time domain.

As an embodiment, the first frequency domain resource block is a starting frequency domain resource block of a first hop in Frequency Hopping (FH).

As an embodiment, the first frequency domain resource block is a starting frequency domain resource block after a first hop in frequency hopping.

As an embodiment, the position of the first time window in the time domain and the second number are used by the first node device in this application to determine an index of the first frequency domain resource block.

As an embodiment, the position of the first time window in the time domain and the second number are used by the second node device in this application to determine the index of the first frequency domain resource block.

As an embodiment, the position of the first time window in the time domain and the second number are used to calculate an index of the first frequency-domain resource block.

As one embodiment, the index RB of the first frequency-domain resource block_start(i) Satisfies the following formula:

wherein i represents the position of the first time window in the time domain, N^size1Representing said second quantity, said first messageOrder indication RB_startAnd RB_offset。

As an embodiment, the second number is a number of RBs occupied by the target bandwidth.

As an embodiment, the second number is a number of RBs occupied by the first bandwidth.

As an embodiment, the second number is a number of RBs occupied by the second bandwidth.

Example 14

Embodiment 14 illustrates a block diagram of the structure in a first node, as shown in fig. 14. In fig. 14, a first node 1400 comprises a first transceiver 1401 and a second transceiver 1402.

A first transceiver 1401 for receiving first signalling, the first signalling being used for determining a first set of frequency domain resources;

a second transceiver 1402 that receives a first signal in the first set of frequency domain resources or transmits a first signal in the first set of frequency domain resources;

in embodiment 14, the first signaling comprises a first field used to indicate the first set of frequency domain resources comprising a positive integer number of frequency domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources. As an embodiment, the first signaling comprises a first field used to indicate the target set of frequency domain resources from the first set of frequency domain resources.

As an example, the first transceiver 1401 receives a first information block; the first information block indicates at least one of a first alternative type or a second alternative type, the first type being one of the first alternative type and the second alternative type; when only the first alternative type is indicated, the first type is the first alternative type; when only the second alternative type is indicated, the first type is the second alternative type; the first field is used to indicate the first type from among the first alternative type and the second alternative type when both the first alternative type and the second alternative type are indicated.

As an example, the first transceiver 1401 receives a second information block; the second information block is used to indicate K1 candidate parameters, the size of the resource block group is a candidate parameter corresponding to the target bandwidth among the K1 candidate parameters; the K1 is a positive integer greater than 1.

As an example, the first transceiver 1401 transmits a third information block; the third information block is used to indicate the second bandwidth, the second bandwidth being a positive integer, the second bandwidth being equal to a number of frequency domain resource blocks comprised by the second frequency domain resource pool; the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs, and the second bandwidth is related to a subcarrier interval of subcarriers occupied by the first signal in the frequency domain.

The first transceiver 1401 comprises at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4, as one embodiment.

For one embodiment, the second transceiver 1402 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 15

Embodiment 15 illustrates a block diagram of the structure in a second node, as shown in fig. 15. In fig. 15, the second node 1500 comprises a third transceiver 1501 and a fourth transceiver 1502.

A third transceiver 1501 that transmits first signaling, the first signaling being used to determine a first set of frequency-domain resources;

a fourth transceiver 1502 that transmits first signals in the first set of frequency domain resources or receives first signals in the first set of frequency domain resources;

in embodiment 15, the first signaling comprises a first field used to indicate the first set of frequency domain resources comprising a positive integer number of frequency domain resource blocks; any one frequency domain resource block included in the first frequency domain resource set belongs to a first frequency domain resource pool, the first frequency domain resource pool includes a positive integer of frequency domain continuous frequency domain resource blocks, and the frequency domain bandwidth of the first frequency domain resource pool is equal to a first bandwidth; any one frequency domain resource block included in the first frequency domain resource set belongs to a second frequency domain resource pool, the second frequency domain resource pool includes a positive integer number of frequency domain continuous frequency domain resource blocks larger than 1, the frequency domain bandwidth of the second frequency domain resource pool is equal to the second bandwidth, and the first bandwidth is not equal to the second bandwidth; the smaller of the first bandwidth and the second bandwidth compared is equal to a target bandwidth, which is used to determine the number of bits occupied by the first domain for a given resource allocation type of frequency domain resource blocks comprised by the first set of frequency domain resources. As an embodiment, the first signaling comprises a first field used to indicate the target set of frequency domain resources from the first set of frequency domain resources.

For one embodiment, the third transceiver 1501 transmits a first information block; the first information block indicates at least one of a first alternative type or a second alternative type, the first type being one of the first alternative type and the second alternative type; when only the first alternative type is indicated, the first type is the first alternative type; when only the second alternative type is indicated, the first type is the second alternative type; the first field is used to indicate the first type from among the first alternative type and the second alternative type when both the first alternative type and the second alternative type are indicated.

For one embodiment, the third transceiver 1501 transmits a second information block; the second information block is used to indicate K1 candidate parameters, the size of the resource block group is a candidate parameter corresponding to the target bandwidth among the K1 candidate parameters; the K1 is a positive integer greater than 1.

For one embodiment, the third bandwidth is greater than the second bandwidth; when the number of bits occupied by the first domain and the second domain is larger than the target threshold value, part of bits in the first domain are truncated; when the bit number occupied by the first domain and the second domain is smaller than the target threshold value, the first signaling is padded with zero; the first signaling includes the second domain, which is used to determine the second pool of frequency domain resources from the first pool of frequency domain resources.

For one embodiment, the third transceiver 1501 receives a third information block; the third information block is used to indicate the second bandwidth, the second bandwidth being a positive integer, the second bandwidth being equal to a number of frequency domain resource blocks comprised by the second frequency domain resource pool; the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs, and the second bandwidth is related to a subcarrier interval of subcarriers occupied by the first signal in the frequency domain.

For one embodiment, the third transceiver 1501 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 in embodiment 4.

For one embodiment, the fourth transceiver 1502 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 in embodiment 4.

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

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

Claims

1. A first node for use in wireless communications, comprising:

a second transceiver that receives first signals in the first set of frequency domain resources or transmits first signals in the first set of frequency domain resources;

2. The first node of claim 1, wherein the first domain is used to determine the second pool of frequency domain resources from the first pool of frequency domain resources, or wherein a domain other than the first domain comprised by the first signaling is used to determine the second pool of frequency domain resources from the first pool of frequency domain resources, when the first bandwidth is greater than the second bandwidth.

3. The first node according to claim 1 or 2, wherein the first transceiver receives a first information block; the first information block indicates at least one of a first alternative type or a second alternative type, the first type being one of the first alternative type and the second alternative type; when only the first alternative type is indicated, the first type is the first alternative type; when only the second alternative type is indicated, the first type is the second alternative type; the first field is used to indicate the first type from among the first alternative type and the second alternative type when both the first alternative type and the second alternative type are indicated.

4. The first node of any of claims 1-3, wherein the first domain comprises a first indicator value, the first indicator value being used to determine a first frequency domain resource block and a first number; the first number is a positive integer, and the first number is equal to the number of frequency domain resource blocks occupied by the first signal in a frequency domain; the first frequency domain resource block is a starting frequency domain resource block occupied by the first signal in a frequency domain; the first indication value and the target index are linearly related; when the target bandwidth is equal to the first bandwidth, the target index is an index of the first frequency-domain resource block in the first frequency-domain resource pool; when the target bandwidth is equal to the second bandwidth, the target index is an index of the first frequency-domain resource block in the second frequency-domain resource pool.

5. The first node of any of claims 1-4, wherein the first domain comprises a first bitmap, wherein one of the target bandwidth and the first bandwidth is used to determine a resource block group size, wherein the resource block group size is a positive integer; any bit in the first bitmap corresponds to one resource block group, and any bit in the first bitmap is used for indicating whether a frequency domain resource block included in the corresponding resource block group belongs to the first frequency domain resource set or not; the resource block group corresponding to any one bit in the first bitmap comprises a positive integer number of frequency domain resource blocks, and the size of the resource block group is used for determining the number of the frequency domain resource blocks included in the resource block group corresponding to any one bit in the first bitmap; the target bandwidth is used to determine a total number of frequency domain resource blocks included in the resource block group corresponding to the first bitmap.

6. The first node of claim 5, wherein the first transceiver receives a second information block; the second information block is used to indicate K1 candidate parameters, the size of the resource block group is a candidate parameter corresponding to the target bandwidth among the K1 candidate parameters; the K1 is a positive integer greater than 1.

7. The first node of any of claims 1-6, wherein a third bandwidth is used to determine a target threshold, the third bandwidth being greater than the second bandwidth; when the number of bits occupied by the first domain and the second domain is larger than the target threshold value, part of bits in the first domain are truncated; when the bit number occupied by the first domain and the second domain is smaller than the target threshold value, the first signaling is padded with zero; the first signaling includes the second domain, which is used to determine the second pool of frequency domain resources from the first pool of frequency domain resources.

8. The first node according to any of claims 1 to 7, wherein the first transceiver transmits a third information block; the third information block is used to indicate the second bandwidth, the second bandwidth being a positive integer, the second bandwidth being equal to a number of frequency domain resource blocks comprised by the second frequency domain resource pool; the second bandwidth is related to a frequency range to which the frequency domain resource occupied by the first signal belongs, and the second bandwidth is related to a subcarrier interval of subcarriers occupied by the first signal in the frequency domain.

9. A second node for use in wireless communications, comprising:

a fourth transceiver that transmits first signals in the first set of frequency domain resources or receives first signals in the first set of frequency domain resources;

10. A method in a first node in wireless communication, comprising:

receiving a first signal in the first set of frequency domain resources or transmitting a first signal in the first set of frequency domain resources;

11. A second node for use in wireless communications, comprising:

transmitting a first signal in the first set of frequency domain resources or receiving a first signal in the first set of frequency domain resources;