CN116647922A

CN116647922A - Method and apparatus in a node for wireless communication

Info

Publication number: CN116647922A
Application number: CN202210131753.0A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2023-08-25
Also published as: WO2023151671A1

Abstract

A method and apparatus in a node for wireless communication is disclosed. The node first receives a first information block and receives first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells; secondly, receiving or transmitting a first signal in the first frequency domain resource set; the first frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions. The application improves the design of the bandwidth part under the multi-carrier scheduling to improve the flexibility of the system.

Description

Method and apparatus in a node 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 multi-carrier scheduling in wireless communication.

Background

Both LTE (Long-Term Evolution) and 5G wireless cellular communication network systems support a scenario where multiple carriers are simultaneously scheduled, and in a multi-carrier scheduling scenario, a base station schedules PDSCH (Physical Downlink Shared Channel ) on multiple carriers by transmitting multiple DCIs (Downlink Control Information ) to increase transmission rate. One feature in multi-carrier scheduling is that one DCI is required for each PDSCH to schedule, and one DCI cannot schedule multiple PDSCH on multiple carriers at the same time.

In the discussion of NR 17, the problem of scheduling PDSCH or PUSCH (Physical Uplink Shared Channel ) on a plurality of carriers based on one DCI is raised, and accordingly, a solution of how to schedule PDSCH or PUSCH on a plurality of carriers by one DCI needs to be studied and discussed.

Disclosure of Invention

An important enhancement in 5G NR is to introduce the concept of BWP (Bandwidth Part), where a serving cell often includes multiple BWP, each BWP may be configured with a different SCS (Subcarrier Spacing ), or the bandwidths may be configured independently, and no more than 1 BWP is activated simultaneously under a serving cell. Further, the base station may dynamically switch the BWP to which the terminal is activated through DCI. The mode ensures the flexibility of BWP configuration and enables terminals with different bandwidth capabilities to be accessed into the NR system to be served. However, the BWP related design needs to be reconsidered and designed in the scenario that one DCI schedules multiple carriers.

In view of the above scenario of multi-carrier scheduling, the present application discloses a solution. It should be noted that, in the description of the present application, only a multicarrier is taken as a typical application scenario or example; the application is also applicable to other scenes facing similar problems, such as a single carrier scene, or other non-dynamic scheduling fields such as measurement reporting fields, control signaling transmission and the like for different technical fields, such as technical fields other than dynamic scheduling, so as to achieve similar technical effects. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to multi-panel scenarios) also helps to reduce hardware complexity and cost. Embodiments of the present application and features of embodiments may be applied to a second node device and vice versa without conflict. In particular, the term (Terminology), noun, function, variable in the present application may be referred to the definitions in the 3GPP specification protocols TS (Technical Specification ) 36 series, TS38 series, TS37 series, if not specifically stated.

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

Receiving a first information block and receiving first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

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

the first frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions.

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

As an embodiment, the above method is characterized in that: the determination of BWP relates to the carrier to which BWP belongs being unable to single DCI scheduling multiple carriers.

As an embodiment, the above method is further characterized in that: the design of single DCI scheduling multi-carrier is simplified, the complexity of standard implementation is reduced, and better forward compatibility is ensured.

According to one aspect of the application, the target bandwidth portion is a first bandwidth portion of the K1 candidate bandwidth portions when the first cell belongs to the first set of cells; when the first cell does not belong to the first set of cells, the target bandwidth portion is a second bandwidth portion of the K1 candidate bandwidth portions; the first bandwidth portion is independent of the second bandwidth portion.

According to an aspect of the present application, all the serving cells included in the first set of cells can be scheduled by the same downlink control information.

According to one aspect of the application, it comprises:

respectively receiving Q2 first-class signals in the Q2 candidate frequency domain resource sets;

wherein the first signaling is used to determine the Q2 candidate sets of frequency domain resources, the Q2 being a positive integer; the first set of cells includes Q1 serving cells, the Q1 being a positive integer greater than 1; the Q2 is less than the Q1; the Q2 candidate frequency domain resource sets respectively belong to Q2 candidate bandwidth parts, and the Q2 candidate bandwidth parts respectively belong to Q2 service cells in the Q1 service cells; the Q2 first type identities corresponding to the Q2 candidate bandwidth parts in the Q2 serving cells are fixed, or the Q2 first type identities corresponding to the Q2 candidate bandwidth parts in the Q2 serving cells are configurable.

According to one aspect of the application, it comprises:

respectively transmitting Q2 first type signals in the Q2 candidate frequency domain resource sets;

As an embodiment, the above method is characterized in that: the first signaling is used to schedule the first signal and the Q2 first type signals simultaneously.

According to one aspect of the application, the Q2 candidate bandwidth portions and the target bandwidth portion each employ a first subcarrier spacing.

As an embodiment, the above method is characterized in that: SCS of multiple BWP in multiple carriers that can be scheduled simultaneously are the same, thereby avoiding implementation complexity due to different scheduling delays.

According to one aspect of the application, the first signaling includes a first domain, the first domain included in the first signaling is used to determine the first cell and the Q2 serving cells from the Q1 serving cells.

As an embodiment, the above method is characterized in that: the first signaling dynamically indicates the first cell and the Q2 serving cells to improve scheduling flexibility.

According to one aspect of the present application, the first set of cells includes Q1 serving cells, the Q1 serving cells respectively correspond to Q1 scheduling indication values, and the Q1 scheduling indication values are all the same.

As an embodiment, the above method is characterized in that: the identities of a plurality of service cells which can be scheduled simultaneously are set to be the same, so that the design scheme when single DCI schedules multi-carriers is simplified.

According to one aspect of the application, at least one of the number of bits comprised by at least one field carried by the first signaling or the number of fields comprised by the first signaling is related to a first number value, the first number value being equal to the sum of Q2 and 1.

As an embodiment, the above method is characterized in that: and determining the number or bit number of related domains in the scheduling DCI according to the number of the actually indicated multiple carriers which are scheduled simultaneously.

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

transmitting a first information block and transmitting first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

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

transmitting a first information block and receiving a first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

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

According to one aspect of the application, it comprises:

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

a first receiver that receives a first information block and receives first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

A first transceiver to receive a first signal in the first set of frequency domain resources;

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

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

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

a first transmitter to transmit a first information block and to transmit a first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

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, comprising:

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

As an embodiment, the solution according to the application has the advantages that: the BWP selection and confirmation mode when the single DCI schedules the multi-carrier is designed, the system design is simplified, the flexible scheduling is ensured, and the forward compatibility of the design scheme is improved.

Drawings

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

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

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

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

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

FIG. 5 shows a flow chart of a first signal according to one embodiment of the application;

fig. 6 shows a flow chart of a first signal according to another embodiment of the application;

FIG. 7 shows a flow chart of Q2 first type signals according to one embodiment of the application;

FIG. 8 shows a flow chart of Q2 first type signals according to another embodiment of the application;

fig. 9 shows a schematic diagram of a first cell according to an embodiment of the application;

fig. 10 shows a schematic diagram of a first set of cells according to an embodiment of the application;

fig. 11 shows a schematic diagram of a first signaling according to an embodiment of the application;

fig. 12 shows a schematic diagram of a first signaling according to another embodiment of the application;

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

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a process 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 a first information block and receives a first signaling in step 101, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells; a first signal is received in the first set of frequency domain resources or transmitted in the first set of frequency domain resources in step 102.

In embodiment 1, the first set of frequency domain resources occupies a target bandwidth portion, where the target bandwidth portion belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions.

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

As an embodiment, the name of the RRC signaling carrying the first information block includes Cross.

As an embodiment, the name of the RRC signaling carrying the first information block includes Carrier.

As an embodiment, the name of the RRC signaling carrying the first information block includes a Multi Cell.

As an embodiment, the name of the RRC signaling carrying the first information block includes Scheduling.

For one embodiment, the first information block includes one or more fields included in CrossCarrierSchedulingConfig IE (Information Elements, information element) in TS 38.331.

As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH (Physical Downlink Control Channel ).

As an embodiment, the first signaling is DCI.

As an embodiment, the first signaling is a downlink Grant (DL Grant).

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

As an embodiment, the first information block is used to indicate the first set of cells.

As a sub-embodiment of this embodiment, the first set of cells includes Q1 serving cells, Q1 is a positive integer greater than 1, Q1 serving cells respectively correspond to Q1 PCIs, and the first information block indicates the Q1 PCIs.

As a sub-embodiment of this embodiment, the first set of cells includes Q1 serving cells, Q1 is a positive integer greater than 1, the Q1 serving cells respectively correspond to Q1 servcellindices, and the first information block indicates the Q1 servcellindices.

As a sub-embodiment of this embodiment, the first set of cells includes Q1 serving cells, where Q1 is a positive integer greater than 1, the Q1 serving cells respectively correspond to Q1 servcellids, and the first information block indicates the Q1 servcellids.

As a sub-embodiment of this embodiment, the first set of cells includes Q1 serving cells, Q1 is a positive integer greater than 1, Q1 serving cells respectively correspond to Q1 ServCellIdentity, and the first information block indicates the Q1 ServCellIdentity.

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

As an embodiment, the first set of frequency domain resources occupies frequency domain resources corresponding to a positive integer number of RBs (Resource blocks) in the frequency domain.

As an embodiment, the first set of frequency domain resources occupy a positive integer number of subcarriers greater than 1 in the frequency domain.

As an embodiment, the target bandwidth portion is a BWP.

As an embodiment, the target bandwidth portion is a carrier.

As an embodiment, the target bandwidth portion is a Subband (Subband).

As an embodiment, the target bandwidth portion occupies a frequency domain resource corresponding to a positive integer number of RBs that are continuous in the frequency domain and greater than 1.

As an embodiment, the target bandwidth portion corresponds to a BWP-Id.

As an embodiment, the physical layer channel occupied by the first signal includes PDSCH.

As an embodiment, the physical layer channel occupied by the first signal includes PUSCH.

As an embodiment, the first signal is generated by a TB (Transport Block).

As an embodiment, the first signal is generated by a CBG (Code Block Group).

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

As an embodiment, the first signaling is used to indicate HARQ (Hybrid Automatic Repeat reQuest ) process number of the first signal.

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

As an embodiment, the first signaling is used to indicate NDI (New Data Indicator, new data indication) corresponding to the first signal.

As an embodiment, the first cell is a serving cell.

As an embodiment, the first cell corresponds to a PCI (Physical Cell Identity ).

As an embodiment, the first cell corresponds to a ServCellIndex.

As an embodiment, the first cell corresponds to a ServCellId.

As an embodiment, the first cell corresponds to a ServCellIdentity.

As an embodiment, said K1 is equal to 4.

As an embodiment, the K1 is a positive integer greater than 4.

As an embodiment, the K1 candidate bandwidths are K1 BWP respectively.

As an embodiment, the K1 candidate bandwidths are respectively K1 sub-bands.

As an embodiment, at least two candidate bandwidth portions of the K1 candidate bandwidth portions respectively use different subcarrier spacings.

As an embodiment, any two candidate bandwidth parts of the K1 candidate bandwidth parts use different subcarrier spacing.

As an embodiment, the total load (Payload) comprised by the first signaling is fixed.

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 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System ) 200 as some other suitable terminology. EPS 200 may include a UE (User Equipment) 201, nr-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services or other cellular networks. The NR-RAN includes NR node Bs (gNBs) 203 and other gNBs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 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, or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the 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 is connected to the EPC/5G-CN 210 through an S1/NG interface. EPC/5G-CN 210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/UPF (User Plane Function ) 211, other MME/AMF/UPF214, S-GW (Service Gateway) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

As an embodiment, the UE201 supports multiple carriers to be scheduled by the same DCI.

As an embodiment, the UE201 supports multiple serving cells to be scheduled by the same DCI.

As an embodiment, the UE201 supports cross-carrier scheduling.

As an embodiment, the NR node B corresponds to the second node in the present application.

As an embodiment, the NR node B supports multiple carriers to be scheduled by the same DCI.

As an embodiment, the NR node B supports multiple serving cells to be scheduled by the same DCI.

As an embodiment, the NR node B supports cross-carrier scheduling.

As an embodiment, the NR node B is a base station.

As an embodiment, the NR node B is a cell.

As an embodiment, the NR node B comprises a plurality of cells.

As one embodiment, the NR node bs are used to determine transmissions on a plurality of serving cells.

As an embodiment, the first node in the present application corresponds to the UE201, and the second node in the present application corresponds to the NR node B.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gNB or V2X) and a second communication node device (gNB, 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 PHY301. 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 PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) 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 the data packets, and the PDCP sublayer 304 also provides handoff support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) 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 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and 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 data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first communication node apparatus 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., remote UE, server, etc.).

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

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

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

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

As an embodiment, the first information block is generated in the MAC302 or the MAC352.

As an embodiment, the first information block is generated in the RRC306.

As an embodiment, the first signaling is generated in the PHY301 or the PHY351.

As an embodiment, the first signaling is generated at the MAC302 or the MAC352.

As an embodiment, the first signal is generated in the PHY301 or the PHY351.

As an embodiment, the first signal is generated at the MAC302 or the MAC352.

As an embodiment, the first signal is generated in the RRC306.

As an embodiment, any one of the Q2 first type signals is generated in the PHY301 or the PHY351.

As an embodiment, any one of the Q2 first type signals is generated in the MAC302 or the MAC352.

As an embodiment, any one of the Q2 first type signals is generated in the RRC306.

As an embodiment, the first node is a terminal.

As an embodiment, the first node is a relay.

As an embodiment, the second node is a relay.

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

As an embodiment, the second node is a gNB.

As an embodiment, the second node is a TRP (Transmitter Receiver Point, transmission reception point).

As one embodiment, the second node is used to manage a plurality of TRPs.

As an embodiment, the second node is a node for managing a plurality of cells.

As an embodiment, the second node is a node for managing a plurality of serving cells.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the 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 communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

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

In the transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for 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., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, 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 a physical channel carrying the time domain multicarrier symbol stream. 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 multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for 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. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the 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 signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in 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 that were transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication 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 transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. 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 it to an antenna 452.

In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the 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 are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: first receiving a first information block and receiving first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells; subsequently 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 frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the operation is a reception or the operation is a transmission.

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, produce acts comprising: first receiving a first information block and receiving first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells; subsequently 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 frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the operation is a reception or the operation is a transmission.

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: first transmitting a first information block and transmitting first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells; then 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 frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the operation is a reception or the operation is a transmission.

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, produce acts comprising: first transmitting a first information block and transmitting first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells; then 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 frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the operation is a reception or the operation is a transmission.

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.

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

As an embodiment, the first communication device 450 is a terminal.

As an embodiment, the first communication device 450 is a relay.

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

As an embodiment, the second communication device 410 is a relay.

As an embodiment, the second communication device 410 is a network device.

As an embodiment, the second communication device 410 is a serving cell.

As an embodiment, the second communication device 410 is a TRP.

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

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

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

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processor 459 are configured to receive Q2 first-type signals, respectively, in Q2 candidate sets of frequency-domain resources; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processors 475 are used to transmit Q2 first-type signals, respectively, in Q2 candidate sets of frequency-domain resources.

As one implementation, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, at least the first four of the controller/processor 459 are used to transmit Q2 first-type signals, respectively, in Q2 candidate sets of frequency-domain resources; the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least the first four of the controller/processors 475 are used to receive Q2 first-type signals, respectively, in Q2 candidate sets of frequency-domain resources.

Example 5

Example 5 illustrates a flow chart of a first signal, as shown in fig. 5. In fig. 5, the first node U1 and the second node N2 communicate via a wireless link. It is specifically explained that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application. Without conflict, the embodiments, sub-embodiments and sub-embodiments of embodiment 5 can be applied to any of embodiments 6, 7 or 8; conversely, any of embodiments 6, 7 or 8, sub-embodiments and sub-embodiments can be applied to embodiment 5 without conflict.

For the followingFirst node U1Receiving a first information block and receiving first signaling in step S10; a first signal is received in a first set of frequency domain resources in step S11.

For the followingSecond node N2Transmitting a first information block and transmitting a first signaling in step S20; the first signal is transmitted in a first set of frequency domain resources in step S21.

In embodiment 5, the first set of frequency domain resources occupies a target bandwidth portion, the target bandwidth portion belonging to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions.

Typically, the target bandwidth portion is a first bandwidth portion of the K1 candidate bandwidth portions when the first cell belongs to the first set of cells; when the first cell does not belong to the first set of cells, the target bandwidth portion is a second bandwidth portion of the K1 candidate bandwidth portions; the first bandwidth portion is independent of the second bandwidth portion.

As an embodiment, the K1 candidate bandwidth parts respectively correspond to K1 BWP-ids, and the BWP-Id corresponding to the first bandwidth part is the smallest one of the K1 BWP-ids.

As an embodiment, the value of BWP-Id corresponding to the first bandwidth part is fixed.

As an embodiment, the subcarrier spacing corresponding to the first bandwidth portion is fixed.

As an embodiment, the subcarrier spacing corresponding to the first bandwidth part is indicated by the first information block.

As an embodiment, when the first node is configured with the first set of cells, the first bandwidth portion cannot be indicated by dynamic signaling and the second bandwidth portion can be indicated by dynamic signaling.

As an embodiment, when the first node is configured with the first set of cells and the first cell belongs to the first set of cells, the first bandwidth portion cannot be indicated by dynamic signaling, and the second bandwidth portion can be indicated by dynamic signaling.

As an embodiment, the first signaling includes a target domain; when the first cell belongs to the first cell set, the value of the target domain included in the first signaling is fixed; the target domain included in the first signaling is used to indicate the second bandwidth portion when the first cell does not belong to the first set of cells.

As a sub-embodiment of this embodiment, the target field included in the first signaling is a Bandwidth part indicator field in DCI.

As a sub-embodiment of this embodiment, the phrase "the value of the target field included in the first signaling is fixed" means that it includes: the target domain included in the first signaling is not used to indicate a BWP.

As a sub-embodiment of this embodiment, the phrase "the value of the target field included in the first signaling is fixed" means that it includes: the target field comprised by the first signaling is equal to 0.

As a sub-embodiment of this embodiment, the phrase "the value of the target field included in the first signaling is fixed" means that it includes: the first signaling includes the target field equal to a fixed value.

As a sub-embodiment of this embodiment, the phrase "the value of the target field included in the first signaling is fixed" means that it includes: the target field comprised by the first signaling is equal to a predefined value.

As a sub-embodiment of this embodiment, the phrase "the value of the target field included in the first signaling is fixed" means that it includes: the target domain included in the first signaling is Zero Padding bits.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the BWP-Id corresponding to the first bandwidth part is different from the BWP-Id corresponding to the second bandwidth part.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the frequency domain resources occupied by the first bandwidth part are different from the frequency domain resources occupied by the second bandwidth part.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the frequency domain resources occupied by the first bandwidth part and the frequency domain resources occupied by the second bandwidth part are orthogonal in the frequency domain.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the first bandwidth portion and the second bandwidth portion are different.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the second bandwidth portion is not used to determine the first bandwidth portion.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the first bandwidth portion is not used to determine the second bandwidth portion.

As an embodiment, the meaning of the first bandwidth part and the second bandwidth part being irrelevant includes: the first bandwidth portion is predefined and the second bandwidth portion is indicated by a Bandwidth part indicator field included in the DCI.

Typically, all the serving cells included in the first set of cells can be scheduled by the same downlink control information.

As an embodiment, the downlink control information is DCI.

As an embodiment, the first information block is used to indicate that all serving cells included in the first set of cells can be scheduled by the same downlink control information.

As an embodiment, the downlink control information is dynamic signaling.

As an embodiment, the downlink control information is used to indicate one scheduled serving cell from all serving cells included in the first set of cells.

As an embodiment, the downlink control information is used to indicate a plurality of scheduled serving cells from all the serving cells included in the first set of cells.

Typically, the first cell set includes Q1 serving cells, where Q1 serving cells respectively correspond to Q1 scheduling indication values, and all Q1 scheduling indication values are the same.

As an example, the Q1 scheduling indication values are Q1 cif-insedulingcells, respectively.

As an embodiment, the Q1 scheduling indication values are Q1 CIF (Carrier Indicator Field, carrier indication field) values, respectively.

As an embodiment, the Q1 scheduling indication values are all equal to the first value.

As a sub-embodiment of this embodiment, the first value is equal to 0.

As a sub-embodiment of this embodiment, the first value is equal to 8.

As a sub-embodiment of this embodiment, the first value is configured by RRC signaling.

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

Example 6

Example 6 illustrates a flow chart of a first signal, as shown in fig. 6. In fig. 6, the first node U3 and the second node N4 communicate via a wireless link. It is specifically explained that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application. Without conflict, the embodiments, sub-embodiments and sub-embodiments of embodiment 6 can be applied to any of embodiments 5, 7 or 8; conversely, any of embodiments 5, 7 or 8, sub-embodiments and sub-embodiments can be applied to embodiment 6 without conflict.

For the followingFirst node U3Receiving a first information block and receiving first signaling in step S30; the first signal is transmitted in a first set of frequency domain resources in step S31.

For the followingSecond node N4In step S40, first information is transmittedBlock and send a first signaling; the first signal is received in a first set of frequency domain resources in step S41.

In embodiment 6, the first set of frequency domain resources occupies a target bandwidth portion, where the target bandwidth portion belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions.

As an embodiment, the transport channel occupied by the first signal includes UL-SCH (Uplink Shared Channel ).

Example 7

Embodiment 7 illustrates a flow chart of Q2 signals of the first type, as shown in fig. 7. In fig. 7, the first node U5 and the second node N6 communicate via a wireless link. It is specifically explained that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application. Without conflict, the embodiments, sub-embodiments and subsidiary embodiments of embodiment 7 can be applied to any of embodiments 5, 6 or 8; conversely, any of embodiments 5, 6 or 8, sub-embodiments and sub-embodiments can be applied to embodiment 7 without conflict.

For the followingFirst node U5In step S50Q 2 signals of a first type are received in Q2 sets of candidate frequency domain resources, respectively.

For the followingSecond node N6In step S60, Q2 signals of the first type are transmitted in Q2 candidate sets of frequency domain resources, respectively.

In embodiment 7, the first signaling is used to determine the Q2 candidate sets of frequency domain resources, the Q2 being a positive integer; the first set of cells includes Q1 serving cells, the Q1 being a positive integer greater than 1; the Q2 is less than the Q1; the Q2 candidate frequency domain resource sets respectively belong to Q2 candidate bandwidth parts, and the Q2 candidate bandwidth parts respectively belong to Q2 service cells in the Q1 service cells; the Q2 first type identities corresponding to the Q2 candidate bandwidth parts in the Q2 serving cells are fixed, or the Q2 first type identities corresponding to the Q2 candidate bandwidth parts in the Q2 serving cells are configurable.

As an embodiment, any one candidate frequency domain resource set of the Q2 candidate frequency domain resource sets occupies frequency domain resources corresponding to a positive integer number of RBs.

As an embodiment, any one of the Q2 candidate frequency domain resource sets occupies a positive integer number of subcarriers greater than 1.

As an embodiment, the physical layer channel occupied by any one of the Q2 first type signals includes PDSCH.

As an embodiment, the physical layer channel occupied by any one of the Q2 first type signals includes PUSCH.

As an embodiment, any one of the Q2 candidate bandwidth parts is a BWP.

As an embodiment, any one of the Q2 candidate bandwidth parts is a subband.

As an embodiment, the Q2 first type identities are Q2 BWP-ids, respectively.

As an embodiment, the phrase "Q2 candidate bandwidth parts are fixed in Q2 first class identities corresponding to the Q2 serving cells" includes: the values of the Q2 first class identities are fixed.

As an embodiment, the phrase "Q2 candidate bandwidth parts are fixed in Q2 first class identities corresponding to the Q2 serving cells" includes: the values of the Q2 first class identities are the same.

As an embodiment, the phrase "Q2 candidate bandwidth parts are fixed in Q2 first class identities corresponding to the Q2 serving cells" includes: a given candidate bandwidth part is any one of the Q2 candidate bandwidth parts, the frequency domain resources occupied by the given candidate bandwidth part belong to a given serving cell of the Q2 serving cells, the given serving cell includes L1 bandwidth parts, the frequency domain positions of the given candidate bandwidth part in the L1 bandwidth parts are fixed, or the frequency domain positions of the given candidate bandwidth part in the L1 bandwidth parts are predefined; the L1 is a positive integer.

As an embodiment, the phrase "Q2 identities of the Q2 candidate bandwidth parts corresponding to the Q2 serving cells are configurable" means that the phrase "Q2 identities of the Q2 candidate bandwidth parts are configurable" includes: the values of the Q2 first type identities are configured by RRC signaling.

As an embodiment, the phrase "Q2 identities of the Q2 candidate bandwidth parts corresponding to the Q2 serving cells are configurable" means that the phrase "Q2 identities of the Q2 candidate bandwidth parts are configurable" includes: the values of the Q2 first type identities are indicated by MAC CE (Control Elements).

As an embodiment, the phrase "Q2 identities of the Q2 candidate bandwidth parts corresponding to the Q2 serving cells are configurable" means that the phrase "Q2 identities of the Q2 candidate bandwidth parts are configurable" includes: the values of the Q2 first class identities are indicated by signaling other than DCI.

As an embodiment, the phrase "Q2 identities of the Q2 candidate bandwidth parts corresponding to the Q2 serving cells are configurable" means that the phrase "Q2 identities of the Q2 candidate bandwidth parts are configurable" includes: the values of the Q2 first type identities are indicated by signaling other than dynamic signaling.

Typically, the Q2 candidate bandwidth portions and the target bandwidth portion each employ a first subcarrier spacing.

As an embodiment, the first information block is used to indicate the first subcarrier spacing.

As an embodiment, only one BWP among a plurality of bandwidth parts included in any one of Q1 serving cells included in the first cell set adopts the first subcarrier spacing, and the first subcarrier spacing indicated by the first information block is used to determine Q1 bandwidth parts from the Q1 serving cells, respectively, and all Q1 bandwidth parts adopt the first subcarrier spacing.

As one embodiment, any one of the Q2 candidate bandwidth portions is one of the Q1 bandwidth portions.

As an embodiment, the number of RBGs occupied by any of the Q2 candidate bandwidth parts is the same as the number of RBGs occupied by the target bandwidth part.

As an embodiment, the number of RBs occupied by any one of the Q2 candidate bandwidth parts is the same as the number of RBs occupied by the target bandwidth part.

Typically, the first signaling includes a first domain, and the first domain included in the first signaling is used to determine the first cell and the Q2 serving cells from the Q1 serving cells.

As an embodiment, the first domain included in the first signaling is a Carrier Indicator domain in DCI.

As an embodiment, the first domain included in the first signaling is a Multi Cell Indicator domain in DCI.

As an embodiment, the first signaling includes a second field, and the second field included in the first signaling is used to indicate whether the first field included in the first signaling is a Carrier Indicator field in DCI or a Multi Cell Indicator field in DCI.

As an embodiment, the first domain included in the first signaling is used to indicate the first cell and the Q2 serving cells from among the Q1 serving cells.

As an embodiment, the service cells of the Q1 service cells form M1 service cell sets, any service cell set of the M1 service cell sets includes at least one service cell of the Q1 service cells, a first service cell set of the M1 service cell sets includes the first cell and the Q2 service cells, and the first domain included in the first signaling is used to indicate the first service cell set from the M1 service cell sets.

Typically, at least one of the number of bits comprised by at least one field carried by the first signaling or the number of fields comprised by the first signaling is related to a first number value, the first number value being equal to the sum of Q2 and 1.

As an embodiment, the number of bits comprised by the third field comprised by the first signaling is related to the first number value.

As a sub-embodiment of this embodiment, the number of bits comprised by the third field is linearly related to the first number value.

As a sub-embodiment of this embodiment, the number of bits comprised by the third field is proportional to the first number value.

As a sub-embodiment of this embodiment, the quotient of the number of bits comprised by the third field divided by the first number value is fixed.

As a sub-embodiment of this embodiment, the third domain is used to indicate the first set of frequency domain resources.

As a sub-embodiment of this embodiment, the third field is used to indicate the Q2 candidate sets of frequency domain resources.

As a sub-embodiment of this embodiment, the third domain is used to indicate time domain resources occupied by the first signal and the Q2 signals of the first type, respectively.

As a sub-embodiment of this embodiment, the third field is used to indicate HARQ process numbers employed by the first signal and the Q2 first type signals, respectively.

As a sub-embodiment of this embodiment, the third field is used to indicate RV process numbers employed by the first signal and the Q2 first class signals, respectively.

As a sub-embodiment of this embodiment, the third field is used to indicate NDIs to which the first signal and the Q2 first type signals correspond, respectively.

As a sub-embodiment of this embodiment, the third field includes a Frequency domain resource assignment field in DCI.

As a sub-embodiment of this embodiment, the third field includes a Time domain resource assignment field in DCI.

As a sub-embodiment of this embodiment, the third field includes a Modulation and coding scheme field in DCI.

As a sub-embodiment of this embodiment, the third field includes a New data indicator field in DCI.

As a sub-embodiment of this embodiment, the third field includes a Redundancy version field in DCI.

As a sub-embodiment of this embodiment, the third field includes a HARQ process number field in DCI.

As a sub-embodiment of this embodiment, the third field includes a Transmission configuration indication field in DCI.

As an embodiment, the first signaling includes a positive integer number of domains of a first type, and the number of domains of the first type included in the first signaling is related to the first number value.

As a sub-embodiment of this embodiment, the number of domains of the first type comprised by the first signaling is linearly related to the first number value.

As a sub-embodiment of this embodiment, the number of domains of the first type comprised by the first signaling is proportional to the first number value.

As a sub-embodiment of this embodiment, the first signaling comprises a number of the first type of fields equal to the first number value.

As a sub-embodiment of this embodiment, the first signaling includes one of a positive integer number of first class domains indicating the first set of frequency domain resources.

As a sub-embodiment of this embodiment, the first signaling includes Q2 first-type domains of a positive integer number of first-type domains, respectively, being used to indicate the Q2 candidate sets of frequency-domain resources.

As a sub-embodiment of this embodiment, the first signaling includes (q2+1) first-class domains of a positive integer number of first-class domains being used to indicate time-domain resources respectively occupied by the first signal and the Q2 first-class signals.

As a sub-embodiment of this embodiment, the first signaling includes (q2+1) first class fields of a positive integer number of first class fields being used to indicate HARQ process numbers employed by the first signal and the Q2 first class signals, respectively.

As a sub-embodiment of this embodiment, the first signaling includes (q2+1) first class domains of a positive integer number of first class domains being used to indicate RV process numbers employed by the first signal and the Q2 first class signals, respectively.

As a sub-embodiment of this embodiment, the first signaling includes (q2+1) first class domains of a positive integer number of first class domains being used to indicate NDIs to which the first signal and the Q2 first class signals correspond, respectively.

As a sub-embodiment of this embodiment, the first type of field includes a Frequency domain resource assignment field in DCI.

As a sub-embodiment of this embodiment, the first type of field includes a Time domain resource assignment field in DCI.

As a sub-embodiment of this embodiment, the first type of field includes a Modulation and coding scheme field in DCI.

As a sub-embodiment of this embodiment, the first type of field includes a New data indicator field in DCI.

As a sub-embodiment of this embodiment, the first type of field includes a Redundancy version field in DCI.

As a sub-embodiment of this embodiment, the first type of field includes a HARQ process number field in DCI.

As a sub-embodiment of this embodiment, the first type of field includes a Transmission configuration indication field in DCI.

As an embodiment, the first signaling comprises a total load related to the first quantity value.

As an embodiment, any one of the Q2 first type signals is the same type of signal as the first signal.

As an embodiment, any one of the Q2 first type signals occupies the same type of physical layer channel as the first signal.

As an embodiment, any one of the Q2 first type signals occupies the same type of transmission channel as the first signal.

As an embodiment, the transmission channel occupied by any one of the Q2 first type signals includes DL-SCH.

As an example, the step S50 is located after the step S11 in example 5.

As an example, the step S60 is located after the step S21 in example 5.

As an example, the step S50 is located after the step S31 in example 6.

As an example, the step S60 is located after the step S41 in example 6.

As an example, the step S50 is performed simultaneously with the step S11 in example 5.

As an example, the step S60 is performed simultaneously with the step S21 in example 5.

As an example, the step S50 is performed simultaneously with the step S31 in example 6.

As an example, the step S60 is performed simultaneously with the step S41 in example 6.

Example 8

Embodiment 8 illustrates another flow chart of Q2 first type signals, as shown in fig. 8. In fig. 8, the first node U7 communicates with the second node N8 via a wireless link. It is specifically explained that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 8 can be applied to any of embodiments 5, 6 or 7 without conflict; conversely, any of embodiments 5, 6 or 7, sub-embodiments and sub-embodiments can be applied to embodiment 8 without conflict.

For the followingFirst node U7In step S70, Q2 signals of the first type are transmitted in Q2 candidate sets of frequency domain resources, respectively.

For the followingSecond node N8Q2 signals of the first type are received in Q2 candidate sets of frequency domain resources, respectively, in step S80.

In embodiment 8, the first signaling is used to determine the Q2 candidate sets of frequency domain resources, the Q2 being a positive integer; the first set of cells includes Q1 serving cells, the Q1 being a positive integer greater than 1; the Q2 is less than the Q1; the Q2 candidate frequency domain resource sets respectively belong to Q2 candidate bandwidth parts, and the Q2 candidate bandwidth parts respectively belong to Q2 service cells in the Q1 service cells; the Q2 first type identities corresponding to the Q2 candidate bandwidth parts in the Q2 serving cells are fixed, or the Q2 first type identities corresponding to the Q2 candidate bandwidth parts in the Q2 serving cells are configurable.

As an embodiment, the transmission channel occupied by any one of the Q2 first type signals includes an UL-SCH.

As an example, the step S70 is located after the step S11 in example 5.

As an example, the step S80 is located after the step S21 in example 5.

As an example, the step S70 is located after the step S31 in example 6.

As an example, the step S80 is located after the step S41 in example 6.

As an example, the step S70 is performed simultaneously with the step S11 in example 5.

As an example, the step S80 is performed simultaneously with the step S21 in example 5.

As an example, the step S70 is performed simultaneously with the step S31 in example 6.

As an example, the step S80 is performed simultaneously with the step S41 in example 6.

Example 9

Embodiment 9 illustrates a schematic diagram of a first cell, as shown in fig. 9. In fig. 9, the first cell includes K1 candidate bandwidth parts, where K1 is equal to 4, and the K1 candidate bandwidth parts are a first candidate bandwidth part, a second candidate bandwidth part, a third candidate bandwidth part, and a fourth candidate bandwidth part, respectively.

As an embodiment, the 4 BWP-ids corresponding to the first candidate bandwidth part, the second candidate bandwidth part, the third candidate bandwidth part and the fourth candidate bandwidth part are sequentially increased.

As an embodiment, the 4 BWP-ids corresponding to the first candidate bandwidth part, the second candidate bandwidth part, the third candidate bandwidth part and the fourth candidate bandwidth part are sequentially decreased.

As an embodiment, the first bandwidth part in the present application is the first candidate bandwidth part.

As an embodiment, the second bandwidth part in the present application is one of the second candidate bandwidth part, the third candidate bandwidth part or the fourth candidate bandwidth part.

As an embodiment, the first candidate bandwidth portion comprises an initialDownlinkBWP.

As an embodiment, the first candidate bandwidth portion includes an initiallinkbwp.

As an embodiment, the BWP-Id used by the first candidate bandwidth part comprises a first actiondownlinkbwp-Id.

As an embodiment, the BWP-Id used by the first candidate bandwidth part comprises a defaultDownlinkBWP-Id.

As an embodiment, the BWP-Id used by the first candidate bandwidth part comprises a first activeuplinkbwp-Id.

As an embodiment, the BWP-Id used by the first candidate bandwidth part comprises a defaultuplink BWP-Id.

As an embodiment, the bandwidth occupied by the first candidate bandwidth part, the bandwidth occupied by the second candidate bandwidth part, the bandwidth occupied by the third candidate bandwidth part, and the bandwidth occupied by the fourth candidate bandwidth part are the same.

As an embodiment, at least two of the first candidate bandwidth part, the second candidate bandwidth part, the third candidate bandwidth part and the fourth candidate bandwidth part occupy different frequency bandwidths.

Example 10

Embodiment 10 illustrates a schematic diagram of a first set of cells, as shown in fig. 10. In fig. 10, the first set of cells includes Q1 serving cells, where Q1 is a positive integer greater than 1; any one of the Q1 serving cells includes a positive integer number of bandwidth portions, and the Q1 serving cells include the Q1 candidate bandwidth portions, respectively; the target bandwidth part in the present application is a candidate bandwidth part belonging to the first cell among the Q1 candidate bandwidth parts; the Q2 candidate bandwidth parts in the present application are Q2 candidate bandwidth parts among the Q1 candidate bandwidth parts respectively belonging to the Q2 serving cells among the Q1 serving cells; the thick rectangular box in the figure identifies one of the Q1 serving cells, and the rectangular grid filled with diagonal lines in the figure corresponds to one of the Q1 candidate bandwidth portions.

As an embodiment, Q1 identities corresponding to the Q1 candidate bandwidth parts in the Q1 serving cells are fixed.

As a sub-embodiment of this embodiment, the Q1 identities are Q1 BWP-ids, respectively.

As a sub-embodiment of this embodiment, the Q1 identities are all equal to 0.

As a sub-embodiment of this embodiment, the Q1 identities are all equal to 3.

As a sub-embodiment of this embodiment, the Q1 identities are all equal to 0.

As an embodiment, Q1 identities corresponding to the Q1 candidate bandwidth parts in the Q1 serving cells are configurable.

As a sub-embodiment of this embodiment, the Q1 identities are configured by RRC signaling.

As a sub-embodiment of this embodiment, the Q1 identities are indicated by MAC CEs.

Example 11

Embodiment 11 illustrates a schematic diagram of a first signaling, as shown in fig. 11. In fig. 11, the first signaling includes a third field, the third field included in the first signaling includes W1 subfields, the W1 is equal to the sum of Q2 and 1 in the present application, and the W1 subfields included in the third field are used to indicate the first signal and the Q2 first type signals, respectively.

As an embodiment, the W1 subfields all include the same number of bits.

As an embodiment, the W1 sub-domains are respectively used to indicate time domain resources occupied by the first signal and the Q2 first type signals respectively.

As an embodiment, the W1 sub-fields are used to indicate HARQ process numbers respectively adopted by the first signal and the Q2 first type signals.

As an embodiment, the W1 sub-fields are used to indicate RV process numbers adopted by the first signal and the Q2 first type signals, respectively.

As an embodiment, the W1 sub-fields are used to indicate NDIs corresponding to the first signal and the Q2 first type signals, respectively.

As an embodiment, the value of W1 is related to the first field comprised by the first signaling.

As an embodiment, the value of W1 relates to the number of serving cells indicated by the first domain comprised by the first signaling.

Example 12

Embodiment 12 illustrates another schematic diagram of the first signaling, as shown in fig. 12. In fig. 12, the first signaling includes W1 first type fields, where W1 is equal to the sum of Q2 and 1 in the present application, and the W1 first type fields included in the third field are used to indicate the first signal and the Q2 first type signals, respectively.

As an embodiment, the W1 first type fields all include the same number of bits.

As an embodiment, the W1 first type domains are used to indicate time domain resources occupied by the first signal and the Q2 first type signals, respectively.

As an embodiment, the W1 first type fields are used to indicate HARQ process numbers used by the first signal and the Q2 first type signals, respectively.

As an embodiment, the W1 first type domains are used to indicate RV process numbers adopted by the first signal and the Q2 first type signals, respectively.

As an embodiment, the W1 first type domains are used to indicate NDIs corresponding to the first signal and the Q2 first type signals, respectively.

Example 13

Embodiment 13 illustrates a block diagram of the structure in a first node, as shown in fig. 13. In fig. 13, a first node 1300 includes a first receiver 1301 and a first transceiver 1302.

A first receiver 1301 that receives a first information block and a first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

a first transceiver 1302 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 13, the first set of frequency domain resources occupies a target bandwidth portion, the target bandwidth portion belonging to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the operation is a reception or the operation is a transmission.

As an embodiment, when the first cell belongs to the first set of cells, the target bandwidth portion is a first bandwidth portion of the K1 candidate bandwidth portions; when the first cell does not belong to the first set of cells, the target bandwidth portion is a second bandwidth portion of the K1 candidate bandwidth portions; the first bandwidth portion is independent of the second bandwidth portion.

As an embodiment, all the serving cells included in the first set of cells can be scheduled by the same downlink control information.

As one embodiment, it comprises:

the first transceiver 1302 receives Q2 first type signals from the Q2 candidate frequency domain resource sets, respectively;

As one embodiment, it comprises:

the first transceiver 1302 sends Q2 first types of signals in Q2 candidate frequency domain resource sets, respectively;

As an embodiment, the Q2 candidate bandwidth portions and the target bandwidth portion each employ a first subcarrier spacing.

As an embodiment, the first signaling includes a first domain, and the first domain included in the first signaling is used to determine the first cell and the Q2 serving cells from the Q1 serving cells.

As an embodiment, the first cell set includes Q1 serving cells, where the Q1 serving cells respectively correspond to Q1 scheduling indication values, and the Q1 scheduling indication values are all the same.

As an embodiment, at least one of the number of bits comprised by at least one field carried by the first signaling or the number of fields comprised by the first signaling is related to a first number value, the first number value being equal to the sum of Q2 and 1.

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

As one embodiment, the first transceiver 1302 includes at least the first 6 of the antenna 452, the receiver 454, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

Example 14

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

A first transmitter 1401 that transmits a first information block and transmits first signaling, the first information block being used to determine a first set of cells, the first signaling being used to indicate a first set of frequency domain resources, the first set of cells comprising a plurality of serving cells;

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

in embodiment 14, the first set of frequency domain resources occupies a target bandwidth portion, the target bandwidth portion belonging to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the execution is either transmission or reception.

As one embodiment, it comprises:

the second transceiver 1402 sends Q2 first type signals in Q2 candidate frequency domain resource sets, respectively;

As one embodiment, it comprises:

the second transceiver 1402 receives Q2 signals of the first type in Q2 candidate sets of frequency domain resources, respectively;

As one example, the first transmitter 1401 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 414, and the controller/processor 475 of example 4.

As one example, the second transceiver 1402 includes at least the first 6 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 414, and the controller/processor 475 of example 4.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on 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 using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, a vehicle, an RSU, an aircraft, an airplane, an unmanned plane, a remote control airplane, and other wireless communication devices. The second node in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a small cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, a drone, a test device, a transceiver device or a signaling tester for example, which simulates a function of a part of a base station, and the like.

It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the presently disclosed embodiments are considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node for wireless communication, comprising:

a first transceiver operating on a first signal in the first set of frequency domain resources;

the first frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the operation is a reception or the operation is a transmission.

2. The first node of claim 1, wherein; the target bandwidth portion is a first bandwidth portion of the K1 candidate bandwidth portions when the first cell belongs to the first set of cells; when the first cell does not belong to the first set of cells, the target bandwidth portion is a second bandwidth portion of the K1 candidate bandwidth portions; the first bandwidth portion is independent of the second bandwidth portion.

3. The first node according to claim 1 or 2, characterized in that all serving cells comprised by the first set of cells can be scheduled by the same downlink control information.

4. A first node according to any of claims 1 to 3, characterized by comprising:

the first transceiver respectively operates Q2 first-type signals in the Q2 candidate frequency domain resource sets;

5. The first node of claim 4, wherein the Q2 candidate bandwidth portions and the target bandwidth portion each employ a first subcarrier spacing.

6. The first node according to claim 4 or 5, characterized in that the first signaling comprises a first domain, the first domain comprised by the first signaling being used for determining the first cell and the Q2 serving cells from the Q1 serving cells.

7. The first node according to any of claims 1 to 6, wherein the first set of cells comprises Q1 serving cells, the Q1 serving cells each corresponding to Q1 scheduling indication values, the Q1 scheduling indication values being the same.

8. The first node according to any of the claims 4 to 7, characterized in that at least one of the number of bits comprised by at least one field carried by the first signaling or the number of fields comprised by the first signaling is related to a first number value, said first number value being equal to the sum of Q2 and 1.

9. A second node for wireless communication, comprising:

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

the first frequency domain resource set occupies a target bandwidth part, and the target bandwidth part belongs to a first cell; the first cell includes K1 candidate bandwidth parts, the target bandwidth part being one of the K1 candidate bandwidth parts; the K1 is a positive integer greater than 1; whether the first cell belongs to the first set of cells is used to determine the target bandwidth portion from the K1 candidate bandwidth portions; the execution is either transmission or reception.

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

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

11. A method in a second node for wireless communication, comprising:

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