CN111525994A

CN111525994A - Method and arrangement in a user equipment, base station, used for wireless communication

Info

Publication number: CN111525994A
Application number: CN201910109150.9A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-02-04
Filing date: 2019-02-04
Publication date: 2020-08-11
Anticipated expiration: 2039-02-04
Also published as: CN111525994B

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. As an embodiment, a first node receives a first signal set in a first air interface resource pool through blind detection, and recovers a first bit block in a physical layer according to a first signal subset; the first set of signals comprises the first subset of signals; receiving first signaling, the first signaling comprising indication information of the first subset of signals; transmitting a second wireless signal; wherein a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits. The method and the device improve transmission efficiency and spectrum utilization rate.

Description

Method and arrangement in a user equipment, base station, 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 method and apparatus for supporting wireless signal forwarding.

Background

Establishing higher layer connections for small data bursts significantly reduces system transmission efficiency, and therefore grant free (grantfee) transmission is proposed to save air interface resources occupied by signaling transmission.

In 3GPP (3rd Generation Partner Project) LTE (long term Evolution) and NR (New Radio) systems, direct inter-Device communication is proposed, such as D2D (Device to Device), V2V (Vehicle to Vehicle), and the like.

Disclosure of Invention

The inventor finds out through research that: in a similar grant-free technique, higher layer connection or efficient scheduling is lacking between a base station device and a UE (User Equipment) and is therefore less efficient than grant-based spectrum.

In response to the above findings, the present application discloses a solution. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. Further, although the present application was originally directed to communication that is similarly exempt from grant, the methods and apparatus of the present application are applicable to other communication configurations, such as grant-based communication, communication between base stations, and the like.

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

receiving a first signal set in a first air interface resource pool through blind detection, and recovering a first bit block in a physical layer according to a first signal subset; the first set of signals comprises the first subset of signals;

receiving first signaling, the first signaling comprising indication information of the first subset of signals;

transmitting a second wireless signal;

wherein a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

As an embodiment, the transmission of the first subset of signals is based on a grant-free like manner, while the retransmission of the first subset of signals, i.e. the second wireless signal, is performed by the first node having established a higher layer connection; the above method improves the spectral efficiency of the retransmission compared to the retransmission performed by the sender of the first subset of signals.

As an embodiment, multiple receivers simultaneously blindly detect the first subset of signals, the first node being one of the multiple receivers; the probability of the first subset of signals being correctly decoded is greatly increased compared to having only one receiver; effectively reducing the probability of retransmission by the sender of the first signal subset, or reducing the MCS (Modulation Coding Status) and power of the first signal subset; thereby improving the transmission efficiency.

As one embodiment, the first subset of signals includes K1 wireless signals, the first block of bits includes K1 sub-blocks of bits, the K1 sub-blocks of bits are used to generate the K1 wireless signals, respectively, the K1 is a positive integer greater than 1; the K1 wireless signals are transmitted by K1 transmitters, respectively.

As a sub-embodiment of the above embodiment, the first subset of signals is transmitted on one physical layer channel.

In the foregoing sub-embodiment, the first node retransmits data in place of the K1 senders at the same time, so that the spectrum efficiency of packet transmission is further improved.

As an embodiment, the first subset of signals is transmitted by a user equipment.

As an embodiment, the first subset of signals is transmitted by one sender.

Specifically, according to an aspect of the present application, the method is characterized by comprising the following steps:

target information is monitored in a second pool of air interface resources to determine that the first set of signals is not correctly decoded.

Specifically, according to an aspect of the present application, the first signaling includes configuration information of a second channel on which the second wireless signal is transmitted; the second bit block comprises a first bit sub-block and a second bit sub-block; the second bit sub-block comprises bits in the first bit block, and the first bit sub-block is independent of the bits in the first bit block; the configuration information of the second channel includes first sub information applied only to the first bit sub-block of the first and second bit sub-blocks and second sub information applied to the second bit sub-block.

transmitting indication information of the first set of signals on a first channel;

wherein the first channel is allocated to the first node.

Specifically, according to an aspect of the present application, the first signal set includes K wireless signals, where K is a positive integer greater than 1, the first signal subset is K1 wireless signals of the K wireless signals, and the K1 is a positive integer no greater than the K; the indication information of the first set of signals comprises K fields, the K fields respectively comprising indication information of the K wireless signals; the indication information of the first subset of signals is K1 of the K domains, the K1 domains including indication information of the K1 wireless signals, respectively.

receiving second signaling, wherein the second signaling indicates the first empty resource pool.

Specifically, according to one aspect of the present application, the second wireless signal is transmitted on the second channel, and bits in the second bit sub-block are modulated and mapped onto the second channel; the first bit sub-block is modulated and mapped onto the second channel after the physical layer is channel coded.

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

performing blind detection in a first pool of empty resources;

transmitting first signaling, the first signaling comprising indication information of the first subset of signals;

receiving a second wireless signal;

wherein a first set of signals is not correctly decoded by the blind detection performed in the first air interface resource, the first set of signals comprising a first subset of signals, a first block of bits being used to generate the first subset of signals at a physical layer; a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

Specifically, according to an aspect of the present invention, the method includes:

indicating, in a second pool of empty resources, by target information that the first set of signals is not correctly decoded.

Specifically, according to one aspect of the present invention, it is characterized in that the first signaling includes configuration information of a second channel on which the second wireless signal is transmitted; the second bit block comprises a first bit sub-block and a second bit sub-block; the second bit sub-block comprises bits in the first bit block, and the first bit sub-block is independent of the bits in the first bit block; the configuration information of the second channel includes first sub information applied only to the first bit sub-block of the first and second bit sub-blocks and second sub information applied to the second bit sub-block.

receiving information indicative of the first set of signals on a first channel;

wherein the first channel is allocated to the first node.

sending third signaling indicating that the first subset of signals is correctly decoded;

wherein a transmission start time of the third signaling is before a reception end time of the second wireless signal.

Specifically, according to an aspect of the present invention, the first signal set includes K wireless signals, where K is a positive integer greater than 1, the first signal subset is K1 wireless signals of the K wireless signals, and the K1 is a positive integer not greater than K; the indication information of the first set of signals comprises K fields, the K fields respectively comprising indication information of the K wireless signals; the indication information of the first subset of signals is K1 of the K domains, the K1 domains including indication information of the K1 wireless signals, respectively.

and sending a second signaling, wherein the second signaling indicates the first empty resource pool.

Specifically, according to one aspect of the present invention, the second wireless signal is transmitted on the second channel, and bits in the second bit sub-block are modulated and mapped onto the second channel; the first bit sub-block is modulated and mapped onto the second channel after the physical layer is channel coded.

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

a first handler: receiving a first signal set in a first air interface resource pool through blind detection, and recovering a first bit block in a physical layer according to a first signal subset; the first set of signals comprises the first subset of signals;

the first receiver: receiving first signaling, the first signaling comprising indication information of the first subset of signals;

a first transmitter: transmitting a second wireless signal;

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

a second processor: performing blind detection in a first pool of empty resources;

a second transmitter: transmitting first signaling, the first signaling comprising indication information of the first subset of signals;

the second receiver: receiving a second wireless signal;

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 two communication devices communicating with each other according to one embodiment of the present application;

fig. 5 shows a schematic diagram of an air interface resource pool according to an embodiment of the present application;

FIG. 6 shows a transmission flow diagram of a first set of signals and a second wireless signal according to one embodiment of the present application;

FIG. 7 illustrates a flow diagram for indicating with target information that a first set of signals is not decoded correctly according to an embodiment of the present application;

FIG. 8 is a diagram illustrating time-frequency resources occupied by a wireless signal according to an embodiment of the present application;

fig. 9 shows a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool according to an embodiment of the application;

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

FIG. 11 shows a schematic diagram of a first bit block according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of a first bit block according to an embodiment of the present application; (ii) a

FIG. 13 shows a schematic diagram of a second sub-block of bits according to an embodiment of the present application;

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

fig. 15 shows a block diagram of a processing device in a second node according to an embodiment of the 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 embodiment 1, the first node receives a first signal set in a first pool of empty resources through blind detection in step S01, and recovers a first bit block in the physical layer according to a first signal subset; the first set of signals comprises the first subset of signals; receiving first signaling in step S02, the first signaling including indication information of the first subset of signals; transmitting a second wireless signal in step S03; in embodiment 1, a second block of bits is used for generating the second radio signal, the second block of bits comprising bits in the first block of bits.

As an embodiment, the first node is a user equipment.

As an embodiment, the first node is a base station apparatus.

As one embodiment, the first node is a relay node.

For one embodiment, the first pool of empty resources comprises a first pool of time-frequency resources.

As an embodiment, the first pool of air interface resources occupies a positive integer number of multicarrier symbols in the time domain and occupies a positive integer number of subcarriers in the frequency domain.

As an embodiment, the multicarrier symbol is an OFDM (Orthogonal Frequency division multiplexing) symbol.

As an embodiment, the multicarrier symbol is an SC-FDMA (Single Carrier frequency division Multiplexing Access) symbol.

As an embodiment, the Multi-Carrier symbol is an FBMC (Filter Bank Multi-Carrier) symbol.

As one embodiment, the first bit block and the second bit block each include a plurality of bits.

As an embodiment, the first bit block and the second bit block respectively include a plurality of bits arranged in sequence.

As one embodiment, the second block of bits includes all bits in the first block of bits.

As an embodiment, the second bit block comprises a part of the bits in the first bit block.

As an embodiment, the second bit block comprises all bits of the first bit block except the indication information of the first subset of signals.

As an embodiment, the first bit block is an output of the first subset of signals after channel equalization, wideband symbol demodulation, resource element de-mapping, layer de-mapping, descrambling, and channel decoding in sequence.

As an embodiment, the first bit block is an output of the first subset of signals after channel equalization, wideband symbol demodulation, resource element de-mapping, descrambling, and channel decoding.

As an embodiment, the first subset of signals is an output of the first bit block after sequentially passing through a Modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource Element Mapper (Resource Element Mapper), and a multi-carrier symbol Generation (Generation).

As an embodiment, the first subset of signals is an output of the first block of bits after occurrence of a modulation mapper, a resource element mapper and a multicarrier symbol.

As an embodiment, the first bit block is output after Channel Coding (Channel Coding) and Scrambling (Scrambling).

As a sub-embodiment of the above embodiment, the channel coding and the scrambling code are performed at a physical layer of a sender of the first subset of signals.

As a sub-embodiment of the above embodiment, the channel Coding is based on Polar Coding (Polar Coding).

As a sub-embodiment of the above embodiment, the channel coding is based on LDPC (Low density parity Check) coding.

As one embodiment, the first signaling includes configuration information of a second channel on which the second wireless signal is transmitted; the second bit block comprises a first bit sub-block and a second bit sub-block; the second bit sub-block comprises bits in the first bit block, and the first bit sub-block is independent of the bits in the first bit block; the configuration information of the second channel includes first sub information applied only to the first bit sub-block of the first and second bit sub-blocks and second sub information applied to the second bit sub-block.

As an embodiment, the second Channel is a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the second Channel is a psch (Physical Sidelink Shared Channel).

As an embodiment, the second channel is a short Physical Uplink shared channel (sPUSCH).

For one embodiment, the second channel is a physical layer channel.

As an embodiment, the second channel is specific to the first node.

As an embodiment, the second wireless signal is an output of the second bit block after sequentially passing through a modulation mapper, a layer mapper, a precoding, a resource element mapper, and a multi-carrier symbol generation.

As an embodiment, the second wireless signal is an output of the second bit block after passing through a modulation mapper, a resource element mapper, and a multicarrier symbol.

As an embodiment, the first bit sub-block is output after Channel Coding (Channel Coding) and Scrambling (Scrambling).

As a sub-embodiment of the above embodiment, the channel coding and the scrambling code are performed at a physical layer of the first node.

As an embodiment, the bits in the first bit block comprised in the second bit sub-block are not channel coded at the first node.

As an embodiment, the bits in the first bit block comprised in the second bit sub-block are not scrambled at the first node.

As an embodiment, the second sub information is also applied to the first bit sub block.

As an embodiment, the second sub information includes time-frequency resources occupied by the second channel.

As an embodiment, the second sub information includes a time domain resource occupied by the second wireless signal.

As an embodiment, the second sub information includes frequency domain resources occupied by the second wireless signal.

As one embodiment, the first sub information includes MCS (Modulation Coding Status).

As one embodiment, the first sub information includes RV (Redundancy Version).

As one embodiment, the first sub information includes a HARQ (Hybrid Auto Repeat reQuest) Process Number (Process Number).

As one embodiment, the first sub information includes NDI (New Data Indicator).

As an embodiment, the first sub information includes HARQ process number, RV, NDI, and MCS.

For one embodiment, the second sub information includes a transmit antenna port.

As an embodiment, the second sub information includes a TCI (transmission configuration indicator).

As an embodiment, the second sub information includes TPC (Transmit Power Control).

As an embodiment, the second sub information indicates a first time-frequency resource block in which both modulation symbols generated based on the first bit sub-block and modulation symbols generated based on the second bit sub-block are transmitted.

As an embodiment, only the first sub-block of bits of the first sub-block of bits and the second sub-block of bits is processed by higher layers.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: the first subset of signals is grant-free.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: there is no higher layer connection between the sender of the first signaling and the sender of the first subset of signals.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: there is no higher layer connection between the first node and the sender of the first subset of signals.

As an embodiment, the higher layer connection is a RRC (Radio Resource Control) layer connection.

As an embodiment, the higher layer connection is a NAS (Non Access System) connection.

As an embodiment, the higher layer connection is an application layer connection.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: the first node is unable to determine whether the first set of signals is transmitted in the first pool of empty resources before the first node correctly decodes the first set of signals.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: the first set of signals comprises Q1 wireless signals, the first subset of signals being one wireless signal of the Q1 wireless signals; the first node performs Q times of channel decoding in the first pool of air interface resources, wherein Q is a positive integer greater than 1, and each channel decoding of the Q times of channel decoding comprises: determining whether a corresponding wireless signal is correctly received according to a Cyclic Redundancy Check (CRC); the Q1 wireless signals are correctly received by Q1 channel decodings of the Q channel decodings respectively; the Q1 is a positive integer no greater than the Q.

As an embodiment, the Q channel decodings are all based on the viterbi algorithm.

As one embodiment, each of the Q channel decodings is iterative based.

As an embodiment, the Q channel decodings are all based on the BP (belief propagation) algorithm.

As an embodiment, the Q channel coding is based on LLR (Log Likelyhood Ratio) -BP algorithm.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: the first set of signals comprises Q1 wireless signals, the first subset of signals being one wireless signal of the Q1 wireless signals; the first node performs Q times of signature sequence detection in the first pool of empty resources, wherein Q is a positive integer greater than 1, and each of the Q times of signature sequence detection comprises: determining whether a corresponding wireless signal is transmitted according to coherent detection of the sequence; q1 of the Q signature sequence detections are used to determine that the Q1 wireless signals were transmitted, respectively; the Q1 is a positive integer no greater than the Q.

As an example, the physical Layer is Layer 1(Layer 1).

For one embodiment, the physical layer is a PHY layer.

As an embodiment, the first set of signals includes only the first subset of signals.

As one embodiment, the first set of signals includes a plurality of wireless signals, the first subset of signals is one wireless signal of the plurality of wireless signals; the sentence said first set of signals is not correctly decoded by the target recipient comprises each wireless signal of said plurality of wireless signals is not correctly decoded by the target recipient.

As an embodiment, the first bit block and the second bit block are identical.

As an embodiment, the second bit block comprises a portion of the bits in the first bit block.

As one embodiment, the target recipient and the sender of the first subset of signals are non-co-located.

As one embodiment, the target recipient and the first node are non-co-located.

Example 2

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

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced), and future 5G systems. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. The EPS200 may include one or more UEs (User Equipment) 201, E-UTRAN-NR (Evolved UMTS terrestrial radio access network-new radio) 202, 5G-CN (5G-Core network, 5G Core network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 230. The UMTS is compatible with Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the EPS200 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. The E-UTRAN-NR202 includes NR (New Radio ) 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 X2 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 (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC 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, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar 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 is connected to the 5G-CN/EPC210 through an S1 interface. The 5G-CN/EPC210 includes an MME211, other MMEs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. The MME211 is a control node that handles signaling between the UE201 and the 5G-CN/EPC 210. In general, the MME211 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 PS streaming service (PSs).

As an embodiment, the first node in this application is a UE201, and the second node in this application is the gNB 203.

As a sub-embodiment of the above embodiment, the sender of each wireless signal in the first signal set in the present application is a UE 201.

As an embodiment, the first node and the second node in this application are respectively a UE201, and the sender of each wireless signal in the first signal set in this application is a UE 201.

As a sub-embodiment of the above embodiment, the first node supports V2V communication

As a sub-embodiment, the UE201 supports V2V communication.

As a sub-embodiment, the gNB203 supports V2V communication.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of radio protocol architecture for the user plane and the control plane, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the UE and the gNB 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 the PHY301, or physical layer. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, 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 gNB on the network side. Although not shown, the UE may have several protocol layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer packets to reduce radio transmission overhead, security by ciphering the packets, and handover support for UEs between gnbs. 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 (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

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

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

As an example, the L2 layer 305 belongs to a higher layer.

As an embodiment, the RRC sublayer 306 in the L3 layer belongs to a higher layer.

As an embodiment, the first bit sub-block is obtained after the first information bit block undergoes channel coding and scrambling operations at the PHY301 layer of the first node; the first block of information bits is output by higher layers of the first node to the PHY301 layer of the first node.

As a sub-embodiment of the above embodiment, the second sub-block of bits is generated at the PHY301 layer of the first node, not from bits passed to the PHY301 layer by higher layers of the first node.

Example 4

Embodiment 4 illustrates a schematic diagram of two communication devices communicating with each other, as shown in fig. 4. Fig. 4 is a block diagram of a node 410 and a node 450 communicating with each other in an access network.

Node 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.

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

In the link transmitted from node 410 to node 450, at node 410, the upper layer data packet is provided to controller/processor 475. The controller/processor 475 implements the functionality of layer L2. 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 node 450, 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/beamforming 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 the link transmitted from node 410 to node 450, at node 450, each receiver 454 receives a signal 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 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 node 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. Receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by node 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. Controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets. 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 the link from node 410 to node 450, controller/processor 475 may also be responsible for HARQ operations, retransmission of lost packets, and signaling to node 450, for one embodiment. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

In the link depicted for transmission from node 410 to node 450, controller/processor 475 provides for header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to node 450 based on various priority metrics, as one embodiment. Controller/processor 459 performs demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets based on the radio resource allocation of controller/processor 475.

In the link depicted for transmission from node 410 to node 450, controller/processor 475 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource assignments by controller/processor 459, for one embodiment.

In the link from node 410 to node 450, controller/processor 475 implements, for one embodiment, the L2 layer functions for the user plane and the control plane.

For one embodiment, in the link from node 410 to node 450, the controller/processor 459 implements L2 layer functions for the user plane and the control plane.

As an example, in the link transmitted from node 450 to node 410, the transmission steps in the link transmitted from node 410 to node 450 described above are reused-except that the functions of the modules in node 410 are performed by the corresponding modules in node 450 and the functions of the modules in node 450 are performed by the corresponding modules in node 410.

For one embodiment, the node 410 is the first node in this application; the node 450 is the second node in this application.

For one embodiment, the node 410 is a base station device and the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the node 450 based on various priority metrics. The controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the node 450.

As a sub-embodiment of the above embodiment, the node 450 is a user equipment, and the first node is the node 450.

As a sub-embodiment of the foregoing embodiment, the node 450 is a user equipment, the first node adopts a hardware structure of the node 450, and the sender of the first signal set also adopts the hardware structure of the node 450.

As a sub-embodiment of the above embodiment, the antenna 452, the receiver 454, the receive processor 456 are used for receiving the first signaling, and the antenna 420, the transmitter 418, the transmit processor 416 are used for transmitting the first signaling.

As a sub-embodiment of the above embodiment, the antenna 452, the receiver 454, the receive processor 456 are used to receive the first set of signals and the target information, and the antenna 420, the transmitter 418, the transmit processor 416 are used to transmit the target information.

As a sub-implementation of the above embodiment, the multi-antenna receive processor 458 is configured to receive the first set of signals and the target information, and the multi-antenna transmit processor 471 is configured to transmit the first set of signals and the target information.

As a sub-embodiment of the above embodiment, the antenna 452, the receiver 454, the receive processor 456 are used for receiving the second signaling, and the antenna 420, the transmitter 418, the transmit processor 416 are used for transmitting the second signaling.

As a sub-embodiment of the above-described embodiment, the antenna 452, the receiver 454, the receive processor 456 are used for receiving the third signaling, and the antenna 420, the transmitter 418, the transmit processor 416 are used for transmitting the third signaling.

As a sub-embodiment of the above embodiment, the antenna 452, the transmitter 454, the transmit processor 468 are used for transmitting the second wireless signal, and the antenna 420, the receiver 418, the receive processor 470 are used for receiving the second wireless signal.

As a sub-embodiment of the above embodiment, the multi-antenna receive processor 472 is used to receive the second wireless signal, and the multi-antenna transmit processor 457 is used to transmit the second wireless signal.

As a sub-embodiment of the above-described embodiment, { the antenna 452, the transmitter 454, the transmission processor 468} is used for transmitting indication information of the first set of signals, { the antenna 420, the receiver 418, the reception processor 470} is used for receiving indication information of the first set of signals.

As a sub-embodiment of the above-mentioned embodiment, the node 410 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 node 410 at least: performing blind detection in a first pool of empty resources; transmitting first signaling, the first signaling comprising indication information of the first subset of signals; receiving a second wireless signal; wherein a first set of signals is not correctly decoded by the blind detection performed in the first air interface resource, the first set of signals comprising a first subset of signals, a first block of bits being used to generate the first subset of signals at a physical layer; a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

As a sub-embodiment of the above-described embodiment, the node 450 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 node 450 at least: receiving a first signal set in a first air interface resource pool through blind detection, and recovering a first bit block in a physical layer according to a first signal subset; the first set of signals comprises the first subset of signals; receiving first signaling, the first signaling comprising indication information of the first subset of signals; transmitting a second wireless signal; wherein a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

As an embodiment, the node 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: performing blind detection in a first pool of empty resources; transmitting first signaling, the first signaling comprising indication information of the first subset of signals; receiving a second wireless signal; wherein a first set of signals is not correctly decoded by the blind detection performed in the first air interface resource, the first set of signals comprising a first subset of signals, a first block of bits being used to generate the first subset of signals at a physical layer; a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

As an embodiment, the node 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first signal set in a first air interface resource pool through blind detection, and recovering a first bit block in a physical layer according to a first signal subset; the first set of signals comprises the first subset of signals; receiving first signaling, the first signaling comprising indication information of the first subset of signals; transmitting a second wireless signal; wherein a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

For one embodiment, the node 410 and the node 450 are user equipments, respectively.

For an embodiment, the node 410 and the node 450 are each a base station device.

For an embodiment, the node 410 and the node 450 are a base station device and a user equipment, respectively.

Example 5

Example 5 illustrates a schematic diagram of a pool of empty resources, as shown in fig. 5.

In embodiment 5, the one air interface resource pool includes L air interface resources, that is, air interface resources #0, #1, …, # (L-1), where L is a positive integer greater than 1; the time frequency resources occupied by the L air interface resources are the same-as indicated by the thick line frame in fig. 7; the air interface resources #0, #1, …, # (L-1) correspond to L different code domain resources, i.e. multiple access signatures, respectively.

As an embodiment, the first air interface resource pool is the one air interface resource pool.

As an embodiment, the second air interface resource pool is the one air interface resource pool.

As an embodiment, the time-frequency resource occupied by the L air interface resources includes a plurality of REs.

As an embodiment, the time-frequency resource occupied by the L air interface resources does not exceed 1 millisecond in the time domain.

Example 6

Embodiment 6 illustrates a transmission flow chart of a first signal set and a second wireless signal, as shown in fig. 6. In fig. 6, the steps in blocks F1, F2, and F3, respectively, are optional.

For the first node N1, receiving a first signal set in a first pool of empty resources by blind detection in step S10, and recovering a first bit block in the physical layer according to the first signal subset; monitoring target information in a second pool of air interface resources to determine that the first set of signals is not decoded correctly in step S11; transmitting indication information of the first set of signals on a first channel in step S12; receiving a first signaling in step S13; transmitting a second wireless signal in step S14;

for the second node N2, blind detection is performed in the first pool of empty resources in step S20; indicating in a second pool of empty resources that the first set of signals is not decoded correctly by target information in step S21; receiving indication information of a first set of signals on a first channel in step S22; sending third signaling in step S23, the third signaling indicating that the first subset of signals is correctly decoded; transmitting a first signaling in step S24; receiving a second wireless signal in step S25;

for the other set of nodes, N3, transmitting the first set of signals in the first pool of empty resources in step S30; the first signaling is received in step S31.

In embodiment 6, the first set of signals comprises the first subset of signals; a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits; the first channel is allocated to the first node; the first signaling comprises indication information of the first subset of signals; the transmission start time of the third signaling is before the reception end time of the second wireless signal.

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

As an embodiment, the first signaling is used for UpLink Grant (UpLink Grant) DCI (downlink control Information).

As one embodiment, the sentence where the first channel is assigned to the first node comprises: the identity of the first node is used to scramble the indication information of the first set of signals.

As one embodiment, the sentence where the first channel is assigned to the first node comprises: the identity of the first node is used to scramble a block of bits transmitted on the first channel.

As one embodiment, the sentence where the first channel is assigned to the first node comprises: the identity of the first node is used to scramble a CRC of a block of bits transmitted on the first channel.

As one embodiment, the sentence where the first channel is assigned to the first node comprises: the first channel is specific to the first node.

For one embodiment, the target information includes HARQ-ACK.

As one embodiment, the target information is broadcast.

As an embodiment, the target information is transmitted on a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first node N1 is a user equipment, the second node N2 is a base station equipment, and the other set of nodes N3 includes at least one user equipment.

As an embodiment, the first node N1 is a user equipment, the second node N2 is a user equipment, and the set of other nodes N3 comprises at least one user equipment.

As one embodiment, the first set of signals includes K wireless signals, the K being a positive integer greater than 1; the other node set N3 includes K user equipments, and the K wireless signals are respectively transmitted by the K user equipments.

As an embodiment, there is no higher layer connection between any of the K user equipments and the first node, there is no higher layer connection between any of the K user equipments and the second node, and there is a higher layer connection between the first node and the second node.

As one embodiment, the higher layer Connection is an RRC Connection (Connection).

As one embodiment, the higher layer connection includes a core network connection.

As an embodiment, the time-frequency resources occupied by the K wireless signals are the same.

As an embodiment, the K wireless signals occupy K physical layer channels, respectively.

As an embodiment, the target information includes indication information of a wireless signal correctly decoded in the first pool of empty resources by a sender of the first signaling (i.e., the second node N2), and the target information does not include indication information of any wireless signal in the first set of signals.

As an embodiment, the indication information is HARQ-ACK.

As one embodiment, the target information includes indication information of wireless signals that were erroneously coded in the first pool of empty resources by a sender of the first signaling, the target information including indication information of each wireless signal in the first set of signals.

As an embodiment, the second pool of empty resources is associated to the first pool of empty resources.

As an embodiment, the time-frequency resource occupied by the first air interface resource pool is used to determine the time-frequency resource occupied by the second air interface resource pool.

As one embodiment, the phrase that the first set of signals is not correctly decoded comprises: the first set of signals is not correctly decoded by the intended recipient (i.e., the second node).

For one embodiment, the target recipient maintains a serving cell for the first node.

As one embodiment, the identity of the target recipient is used for the generation of any of the wireless signals in the first set of signals.

As one embodiment, the identity of the target recipient is used for a scrambling code of a CRC included with any wireless signal in the first set of signals.

As an embodiment, the identity of the target recipient is used for generation of an RS (Reference Signal) sequence of a DMRS (DeModulation Reference Signal) comprised by any wireless Signal in the first set of signals.

As one embodiment, the target recipient is a sender of the first signaling.

As one embodiment, the first pool of empty resources is allocated by the target recipient.

As an example, the second wireless signal is transmitted on the second channel, and bits in the second bit sub-block are modulated and mapped onto the second channel; the first bit sub-block is modulated and mapped onto the second channel after the physical layer is channel coded.

As an embodiment, when colliding with resource particles occupied by modulation symbols generated by modulating bits in the second bit sub-block, modulation symbols generated by modulating the first bit sub-block after the physical layer is subjected to channel coding are discarded.

In one embodiment, the bits in the second bit sub-block and the bit sequence of the first bit sub-block after channel coding in the physical layer are concatenated and then modulated and mapped onto the second channel.

As an embodiment, the second bit sub-block includes bits in the first bit block and UCI (Uplink Control Information).

As one embodiment, the first set of signals includes K wireless signals, the K being a positive integer greater than 1, the first subset of signals is K1 wireless signals of the K wireless signals, the K1 is a positive integer no greater than the K; the indication information of the first set of signals comprises K fields, the K fields respectively comprising indication information of the K wireless signals; the indication information of the first subset of signals is K1 of the K domains, the K1 domains including indication information of the K1 wireless signals, respectively.

As an embodiment, at least two of the K wireless signals are non-co-located.

As one embodiment, each of the K fields includes a plurality of bits.

As one embodiment, the K wireless signals include the K domains, respectively.

As an embodiment, the K fields are identities of senders of the K wireless signals, respectively.

For one embodiment, the receiving, by blind detection, the first set of signals in the first pool of air resources comprises: the K wireless signals are grant-free.

As an embodiment, the receiving the first set of signals by blind detection in the first pool of air interface resources comprises: there is no higher layer connection between any of the K senders and the sender of the first subset of signals.

As an embodiment, the receiving the first set of signals by blind detection in the first pool of air interface resources comprises: there is no higher layer connection between the first node and any of the K senders.

As an embodiment, the first transmitter transmits the indication information of the first set of signals on a first channel; wherein the first channel is allocated to the first node.

As an embodiment, the indication information of the first set of signals is used to trigger the first signaling.

As an embodiment, the indication information of the first set of signals is used to trigger a third signaling, the target recipient of the third signaling comprising the sender of the first subset of signals, the third signaling indicating that the first subset of signals is correctly decoded.

As an embodiment, the sender of the third signaling is the sender of the target information.

As an embodiment, the sender of the third signaling is the sender of the first signaling.

As an embodiment, the starting transmission time of the third signaling is earlier than the transmission starting time of the second wireless signal.

As an embodiment, a transmission ending time of the third signaling is earlier than a transmission starting time of the second wireless signal.

As an embodiment, the indication information of the first set of signals comprises that the first subset of signals is correctly decoded.

As one embodiment, the indication information of the first set of signals includes an identity of a sender of the first subset of signals.

As an embodiment, the indication information of the first set of signals includes the first pool of empty resources.

Example 7

Embodiment 7 illustrates a flow chart for indicating that the first set of signals is not decoded correctly using the target information, as shown in fig. 7. The steps in fig. 7 are performed in the second node.

In step S60, the second node determines whether a correctly decoded wireless signal exists in the first air interface resource pool; if so, the target information is sent in the second air interface resource pool in step S62, and if not, zero sending power is kept in the second air interface resource pool in step S61.

As an embodiment, in the step S61, the target information is set to null.

As an embodiment, the wireless signals correctly decoded by the second node in the first pool of air interface resources include M wireless signals, where M is a positive integer; the target information includes M identities that are used to identify the M wireless signals, respectively.

As an embodiment, the M identities are used to identify the senders of the M wireless signals, respectively.

As an embodiment, the M identities are used for scrambling codes of the M wireless signals, respectively.

As an embodiment, the M identities are used to generate RS sequences of DMRSs included in the M wireless signals, respectively.

Example 8

Embodiment 8 illustrates a schematic diagram of time-frequency resources occupied by a wireless signal, as shown in fig. 8. In fig. 8, the horizontal axis and the vertical axis are the time axis and the frequency axis, respectively, and a small square represents a RE (Resource Element).

In example 8, {0_0, 1_0, 2_0, · P _0 }; {0_1, 1_1, 2_1, 3_1, ·, P _1 }; the resource elements denoted by {0_2, 1_2, 2_2, 3_ 2.,. P _ V } are occupied by one radio signal and belong to V multicarrier symbols, respectively.

As an embodiment, the time-frequency resource occupied by any wireless signal in the first signal set includes {0_0, 1_0, 2_0, ·, P _0 }; {0_1, 1_1, 2_1, 3_1, ·, P _1 }; {0_2, 1_2, 2_2, 3_2, ·, P _ V }, as a resource element.

As an embodiment, the time-frequency resources occupied by the second wireless signal include {0_0, 1_0, 2_0,.., P _0 }; {0_1, 1_1, 2_1, 3_1, ·, P _1 }; {0_2, 1_2, 2_2, 3_2, ·, P _ V }, as a resource element.

As an embodiment, modulation symbols obtained after the bits in the second bit sub-block are modulated are sequentially mapped into time-frequency resources occupied by the second wireless signal according to the rules of frequency domain first and time domain second, that is, according to {0_0, 1_0, 2_ 0.,. P _ 0; 0_1, 1_1, 2_1, 3_1, ·, P _ 1; .. } are mapped sequentially.

As an embodiment, modulation symbols obtained after the bits in the second bit sub-block are modulated are sequentially mapped to REs that are not occupied by the DMRS in the second wireless signal according to the rules of the first frequency domain and the second time domain.

As one embodiment, the bits in the second bit sub-block include UCI and bits in the first bit block, the UCI preceding the bits in the first bit block.

As an example, REs represented by gray-filled small squares in fig. 8 are allocated to the DMRS of the second wireless signal.

As an embodiment, modulation symbols obtained after the bits in the first bit sub-block are modulated are sequentially mapped to REs that are not occupied by the DMRS and the second bit sub-block in the second wireless signal according to the first rule of the frequency domain and the second rule of the time domain.

As an example, P is a positive integer multiple of 12.

As an example, V is 1.

As an example, V is 2.

As an example, V is 7.

As an example, V is 14.

Example 9

Embodiment 9 illustrates a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool, as shown in fig. 9.

In embodiment 9, the time domain resource occupied by the second time-frequency resource pool is subsequent to the time domain resource occupied by the first time-frequency resource pool.

As an embodiment, the frequency domain resource occupied by the second time-frequency resource pool and the frequency domain resource occupied by the first time-frequency resource pool belong to the same BWP (BandWidth Part).

As an embodiment, the frequency domain resources occupied by the second time-frequency resource pool and the frequency domain resources occupied by the first time-frequency resource pool include the same subcarriers.

As an embodiment, the time slot occupied by the second time-frequency resource pool is the u-th time slot after the time slot occupied by the first time-frequency resource pool, and u is a positive integer.

As an example, u is a fixed constant.

For one embodiment, the u is configurable.

As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by the first air interface resource pool and the second air interface resource pool, respectively.

As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by the first air interface resource pool and the first channel, respectively.

As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by the first air interface resource pool and the third channel, respectively.

As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by a first channel and a second radio signal, respectively, and u is indicated by the first signaling.

Example 10

Embodiment 10 illustrates a schematic diagram of a second bit block, as shown in fig. 10. The higher layers and physical layer in fig. 10 are located on the first node side.

The higher layer of the first node passes a first block of information bits to the physical layer of the first node, said first block of information bits being processed into a first sub-block of bits at the physical layer of the first node, said processing comprising channel coding; and the physical layer of the first node recovers the second bit sub-block according to the received first signal subset.

As one example, the processing includes operations of rate matching, scrambling, and the like.

As an embodiment, the second bit block is formed by concatenation of the first bit sub-block and the second bit sub-block.

As an embodiment, the second sub-block of bits includes UCI, which is also generated at the physical layer of the first node.

As an example, unlike a conventional layer 1 or layer 2 relay, the second bit sub-block does not undergo higher layer processing by the first node in example 10, i.e. no higher layer connection is established between the sender of the second bit sub-block and the first node.

As an embodiment, unlike the conventional layer 0 relay, the second bit sub-block is processed by the physical layer of the first node in embodiment 10, and is relayed only for the wireless signal indicated by the first signaling.

Example 11

Embodiment 11 illustrates a schematic diagram of a first bit block, as shown in fig. 11.

In embodiment 11, the first bit block comprises a block of systematic bits and a block of identification bits.

As an embodiment, the identification bit block indicates a sender of the first bit block.

As an embodiment, a CRC of the systematic bit block of the first bit block is used to generate the identification bit block in the first bit block.

As an embodiment, the CRC of the systematic bit block of the first bit block is scrambled to obtain the flag bit block in the first bit block.

As an embodiment, the first bit block is transmitted by a user equipment.

As an embodiment, the first subset of signals further includes a wireless signal.

As one embodiment, the first subset of signals is transmitted on a PUSCH.

Example 12

Embodiment 12 illustrates a schematic diagram of a first bit block, as shown in fig. 12.

In embodiment 12, the first bit block includes K1 bit sub-blocks, i.e., bit sub-block #1, bit sub-block # 2., bit sub-block # K1; each bit sub-block comprises a systematic bit block and an identification bit block.

As an embodiment, the K1 bit sub-blocks are transmitted by K1 transmitters, respectively.

As an embodiment, the CRC of the systematic bit block in each of the K1 bit sub-blocks is used to generate the identification bit block in the first bit block.

As an embodiment, the CRC of the systematic bit block of the first bit block in each of the K1 bit sub-blocks is scrambled to obtain the flag bit block in the first bit block.

For one embodiment, the first subset of signals is the same as the first set of signals.

Example 13

Embodiment 13 illustrates a schematic diagram of the second bit sub-block, as shown in fig. 13. In fig. 13, the other bit block is optional.

Example 13 is a sub-example of example 12; in embodiment 13, the second bit sub-block includes K1 systematic bit blocks in fig. 12, i.e., systematic bit block #1, systematic bit block #2,. and systematic bit block # K1; the second sub-block of bits comprises a block of parity bits, said K1 blocks of systematic bits being used for generating said block of parity bits.

As an embodiment, the one check bit block is a CRC generated as the information bit block after the concatenation of the K1 systematic bit blocks.

As an embodiment, the one check bit block is obtained after the CRC generated as the information bit block after the K1 systematic bit blocks are concatenated is scrambled.

As an embodiment, the second sub-block of bits comprises a further block of bits, which is independent of the first set of signals.

As an embodiment, the other bit block includes UCI.

Example 14

Embodiment 14 is a block diagram illustrating a configuration of a processing device in a first node, as shown in fig. 14. In embodiment 14, the first node 1400 comprises a first handler 1401, a first receiver 1402 and a first transmitter 1403.

The first processor 1401 receives a first signal set in a first air interface resource pool through blind detection, and recovers a first bit block in a physical layer according to a first signal subset; the first set of signals comprises the first subset of signals; the first receiver 1402 receiving a first signaling, the first signaling comprising indication information of the first subset of signals; the first transmitter 1403 transmits a second wireless signal;

in embodiment 14, a second block of bits is used for generating the second radio signal, the second block of bits comprising bits in the first block of bits.

As one embodiment, the first processor monitors target information in a second pool of air interface resources to determine that the first set of signals is not decoded correctly.

As an embodiment, the first receiver receives a second signaling indicating the first pool of empty resources.

As an example, the first node 1400 is the node 450 of fig. 4.

As an embodiment, the first node 1400 adopts the hardware structure of the node 450 in fig. 4, and the sender of the first signal set also adopts the hardware structure of the node 450 in fig. 4.

For one embodiment, the first processor 1401 comprises { the antenna 452, the receiver 454, the receive processor 456} of fig. 4; the first receiver 1402 comprises the antenna 452, the receiver 454, the receive processor 456 of fig. 4; the first transmitter 1403 includes the antenna 452, the transmitter 454, the transmit processor 468 in fig. 4.

For one embodiment, the first processor 1401 includes the multiple antenna receive processor 458 of fig. 4, and the first receiver 1402 includes the multiple antenna receive processor 458 of fig. 4.

For one embodiment, the first receiver 1402 includes the controller/processor 459 of fig. 4.

The first transmitter 1403 includes the multi-antenna transmit processor 457 of fig. 4, for one embodiment.

Example 15

Embodiment 15 is a block diagram illustrating a configuration of a processing apparatus in the second node, as shown in fig. 15. In embodiment 15, the second node 1500 comprises a second handler 1501, a second transmitter 1502 and a second receiver 1503.

The second handler 1501 performs blind detection in the first air interface resource pool; a second transmitter 1502 transmits a first signaling comprising indication information of the first subset of signals; the second receiver 1503 receives the second wireless signal;

in embodiment 15, a first set of signals is not correctly decoded by the blind detection performed in the first air interface resource, the first set of signals comprising a first subset of signals, a first block of bits being used to generate the first subset of signals at a physical layer; a second block of bits is used to generate the second wireless signal, the second block of bits comprising bits in the first block of bits.

As an embodiment, the second handler 1501 indicates, in the second air interface resource pool, that the first signal set is not decoded correctly through target information.

For one embodiment, the second receiver 1503 receives an indication of a first set of signals on a first channel; wherein the first channel is allocated to the first node.

As an embodiment, the second handler 1501 sends third signaling indicating that the first subset of signals is correctly decoded; wherein a transmission start time of the third signaling is before a reception end time of the second wireless signal.

For one embodiment, the second transmitter 1502 transmits a second signaling indicating the first pool of empty resources.

As an example, the second node 1500 is the node 410 in fig. 4.

As an embodiment, the second node 1500 adopts the hardware structure of the node 410 in fig. 4, and the sender of the first signal set adopts the hardware structure of the node 450 in fig. 4.

For one embodiment, the first processor 1501 includes { the antenna 420, the receiver 418, the receive processor 470} in fig. 4; the first transmitter 1502 includes { the antenna 420, the transmitter 418, the transmit processor 416} of FIG. 4; the second receiver 1503 includes the antenna 420, the receiver 418, and the receive processor 470 in fig. 4.

For one embodiment, the first processor 1501 includes the multiple antenna receive processor 472 of fig. 4, and the second receiver 1503 includes the multiple antenna receive processor 472 of fig. 4.

For one embodiment, the first processor 1501 includes { the antenna 420, the transmitter 418, the transmit processor 416} in fig. 4.

For one embodiment, the first transmitter 1502 includes the multi-antenna transmit processor 471 of fig. 4.

The first transmitter 1502 includes, as one embodiment, the controller/processor 459 of figure 4.

The first receiver 1503 includes the controller/processor 459 of figure 4 as an example.

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. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. 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, a gNB (NR node B), a TRP (Transmitter Receiver Point), 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 configured for wireless communication, comprising:

a first transmitter: transmitting a second wireless signal;

2. The first node of claim 1, wherein the first processor monitors target information in a second pool of air interface resources to determine that the first set of signals is not correctly decoded.

3. The first node of claim 1 or 2, wherein the first signaling comprises configuration information of a second channel on which the second wireless signal is transmitted; the second bit block comprises a first bit sub-block and a second bit sub-block; the second bit sub-block comprises bits in the first bit block, and the first bit sub-block is independent of the bits in the first bit block; the configuration information of the second channel includes first sub information applied only to the first bit sub-block of the first and second bit sub-blocks and second sub information applied to the second bit sub-block.

4. The first node of any of claims 1-3, wherein the first transmitter transmits information indicative of the first set of signals on a first channel; wherein the first channel is allocated to the first node.

5. The first node of any of claims 1-4, wherein the first set of signals comprises K wireless signals, K being a positive integer greater than 1, the first subset of signals being K1 of the K wireless signals, K1 being a positive integer no greater than K; the indication information of the first set of signals comprises K fields, the K fields respectively comprising indication information of the K wireless signals; the indication information of the first subset of signals is K1 of the K domains, the K1 domains including indication information of the K1 wireless signals, respectively.

6. The first node according to any of claims 1 to 5, wherein the first receiver receives second signaling indicating the first pool of empty resources.

7. The first node of any of claims 3-6, wherein the second wireless signal is transmitted on the second channel, and wherein bits in the second sub-block of bits are modulated and mapped onto the second channel; the first bit sub-block is modulated and mapped onto the second channel after the physical layer is channel coded.

8. A second node configured for wireless communication, comprising:

the second receiver: receiving a second wireless signal;

9. A method in a first node used for wireless communication, comprising:

transmitting a second wireless signal;

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

performing blind detection in a first pool of empty resources;

receiving a second wireless signal;