CN110505699B

CN110505699B - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN110505699B
Application number: CN201810484951.9A
Authority: CN
Inventors: 蒋琦; 张晓博; 杨林
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2018-05-20
Filing date: 2018-05-20
Publication date: 2023-04-18
Anticipated expiration: 2038-05-20
Also published as: CN116015587A; CN110505699A

Abstract

The application discloses a method and a device in user equipment, a base station used for wireless communication. The user equipment receives the first information and sends a first wireless signal; the first information is used to determine a first set of offsets; a time domain resource occupied by the first wireless signal starts at a first moment, a time interval between the first moment and a second moment is equal to a target offset, and the target offset belongs to the first offset set; the second time is the starting time of the first time window; the first set of offsets is related to a first set of multiple access signatures, one of a positive integer number of multiple access signatures comprised by the first set of multiple access signatures is used for generating the first wireless signal. According to the method and the device, the first offset set and the first multiple access signature set are connected, so that the collision probability of unlicensed spectrum uplink grant-free data transmission is reduced, the implementation complexity is reduced, and the spectrum efficiency and the overall performance of a system are improved.

Description

Method and device used in user equipment and base station for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly, to methods and apparatus for data and control channel transmission over unlicensed spectrum.

Background

In a conventional 3GPP (3 rd Generation Partner Project) LTE (Long-term Evolution) system, data transmission can only occur over a licensed spectrum. However, with the continuous diversification of application scenarios and the rapid increase of traffic, it may be difficult for the conventional licensed spectrum to meet the traffic demand. Communication over unlicensed spectrum in LTE Release 13 and Release 14 was introduced by cellular systems and used for transmission of downlink and uplink data.

In the LAA (licensed Assisted Access) design mechanism of LTE, a transmitter (base station or user equipment) needs to perform LBT (Listen Before Talk) Before transmitting data on an unlicensed spectrum to ensure that no interference is caused to other ongoing wireless transmissions on the unlicensed spectrum. In order to avoid the reduction of resource utilization rate and the time delay caused by frequent LBT, release 15 introduces an AUL (Autonomous UpLink) transmission mechanism on an unlicensed spectrum. In the AUL transmission mechanism, a UE (User Equipment) may autonomously perform uplink transmission in an air interface resource pre-configured by a base station; meanwhile, because the UE of the AUL has a situation of simultaneously selecting one transmission starting point after LBT, a concept of Start Offset (Start Offset) is introduced in RAN1#92 times, different UE configures different Start Offset groups, and the UE autonomously selects the Start Offset from the configured Start Offset groups, thereby avoiding collision caused by selecting the same transmission starting point for multiple AUL UEs.

When LAA is applied to a 5G NR (New Radio Access Technology) system, particularly after a NOMA (Non-Orthogonal Multiple Access) Technology is introduced, the above-mentioned problems become more complicated, and New solutions need to be researched and proposed.

Disclosure of Invention

A typical application scenario in the 5G LAA is to perform uplink NOMA-based transmission in an AUL manner, so as to deal with services with a large number of users and a small number of users, and avoid introducing unnecessary overhead of control signaling. There are many alternative NOMA schemes currently available in 5G, with different NOMA schemes addressing different performance characteristics and application scenarios. Aiming at a NOMA scheme, the number of user equipment which can be multiplexed in a block of time-frequency resources is related to the number of quasi-orthogonal multiple access signatures which can be found, and is also limited by blind detection energy of a base station; and different NOMA schemes also have different requirements for whether the transmissions between the user equipments need to be aligned during uplink transmission. For the above scenario, a simple manner of combining AUL and NOMA transmission is to perform aligned uplink transmission for all ues, but this manner may greatly reduce the chance of uplink AUL transmission, and once transmission occurs, LBT may fail for other ues performing LBT, thereby reducing uplink transmission chance.

Based on the above problems and analysis, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may apply to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method used in a user equipment for wireless communication, characterized by comprising:

receiving first information;

transmitting a first wireless signal;

wherein the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As an example, the above method has the benefits of: associating the first offset set with the first multiple access signature set, wherein for a user equipment, a selected multiple access signature affects a value of a selected target offset, and further affects a transmission time of the first wireless signal; therefore, the AUL transmission based on different types of multiple access signatures is staggered in the time domain.

As an example, the essence of the above method is: establishing connection between a plurality of multiple access signature sets with different orthogonality requirements and a plurality of offset sets based on different NOMA technologies or respectively, wherein different offset sets correspond to different potential sending start time and potential sending end time; from the base station side, blind detection between different starting time and ending time only adopts a corresponding multiple access signature set, and the realization complexity of the base station is reduced; from the network side, the NOMA technology configuration with high orthogonality requirements includes offset sets with less offsets to ensure orthogonality, and the NOMA technology configuration with low orthogonality requirements includes offset sets with more offsets to ensure flexibility; and different thresholds of LBT can be configured for different multiple access signature sets, so that the transmission efficiency of NOMA is further improved.

According to one aspect of the application, the above method is characterized by comprising:

performing energy detection for a first frequency band;

wherein the energy detection is used to determine that the first frequency band to which the frequency domain resources occupied by the first wireless signal belong is unoccupied.

As an example, the essence of the above method is that: different NOMA technologies correspond to different tolerances to collision, and the user equipment determines the threshold for carrying out energy detection according to the selected multiple access signature set, thereby ensuring the performance of NOMA.

receiving a second signaling;

wherein the second signaling is used to determine that sharing the first frequency band based on the long term other technology is guaranteed to be absent.

As an example, the essence of the above method is: when no technology other than the 3GPP protocol such as WiFi exists in the first frequency band, since NOMA itself is an inter-user interference resistant technology, the ue may use a more aggressive threshold (lower threshold) for LBT listening to obtain more opportunities for AUL transmission without worrying about unfairness for other non-3 GPP access technologies.

receiving second information;

wherein the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

As an example, the essence of the above method is: the base station configures a time frequency resource which can be occupied by the first wireless signal for the user equipment in advance, and the user equipment determines the starting time of transmission in the time frequency resource.

According to an aspect of the application, the method is characterized in that the user equipment selects the target offset from the first offset set by itself.

receiving a third signaling;

wherein the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling comprises the first information; and M1 is a positive integer.

As an example, the essence of the above method is: the base station configures the M1 first-class candidate offset sets for the user equipment, and the user equipment selects the first offset sets from the M1 first-class candidate offset sets.

receiving a fourth signaling;

wherein the fourth signaling is used to indicate M1 sets of first-type multiple access signatures, the first set of multiple access signatures being one of the M1 sets of first-type multiple access signatures; the M1 first-class candidate offset sets are respectively in one-to-one correspondence with the M1 first-class multiple access signature sets.

As an example, the essence of the above method is that: and establishing a one-to-one correspondence relationship between the M1 multiple access signature sets of the first type and the M1 candidate offset sets of the first type, and determining one of the M1 multiple access signature sets by the user equipment so as to determine the configuration of the other one.

According to an aspect of the application, the above method is characterized in that the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

As an example, the above method has the benefits of: the user equipment determines an offset set by determining a multiple access signature set first or determines a multiple access signature set by determining an offset set first; in the above manner, the user equipment can more flexibly implement the transmission of the AUL uplink NOMA, thereby avoiding additional signaling overhead.

The application discloses a method in a base station used for wireless communication, characterized by comprising:

sending first information;

receiving a first wireless signal;

wherein the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

sending a second signaling;

wherein the second signaling is used to determine that the first frequency band is guaranteed to be absent based on the long term other technology sharing; the frequency domain resource occupied by the first wireless signal belongs to the first frequency band.

sending the second information;

According to one aspect of the application, the method is characterized in that the sender of the first wireless signal chooses the target offset from the first set of offsets on his own.

sending a third signaling;

wherein the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling comprises the first information; the M1 is a positive integer.

sending a fourth signaling;

wherein the fourth signaling is used to indicate M1 multiple access signature sets of a first type, which are one of the M1 multiple access signature sets of the first type; the M1 first-class candidate offset sets are respectively in one-to-one correspondence with the M1 first-class multiple access signature sets.

According to one aspect of the application, the above method is characterized in that the first set of offsets is used to determine the first set of multiple access signatures from among the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

The application discloses a user equipment used for wireless communication, characterized by comprising:

a first receiver module to receive first information;

a first transceiver module that transmits a first wireless signal;

As an embodiment, the above user equipment for wireless communication is characterized in that the first transceiver module further performs energy detection for a first frequency band; the energy detection is used to determine that the first frequency band to which the frequency domain resources occupied by the first wireless signal belong is unoccupied.

As an embodiment, the above user equipment for wireless communication is characterized in that the first receiver module further receives a second signaling; the second signaling is used to determine that sharing the first frequency band based on the long term other technology is guaranteed to be absent.

As an embodiment, the above user equipment used for wireless communication is characterized in that the first receiver module further receives second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

As an embodiment, the user equipment used for wireless communication described above is characterized in that the user equipment selects the target offset from the first offset set by itself.

As an embodiment, the above user equipment for wireless communication is characterized in that the first receiver module further receives a third signaling; the third signaling is used to indicate M1 first class candidate offset sets, which are one of the M1 first class candidate offset sets; the third signaling comprises the first information; and M1 is a positive integer.

As an embodiment, the above user equipment for wireless communication is characterized in that the first receiver module further receives a fourth signaling; the fourth signaling is used to indicate M1 sets of multiple access signatures of a first type, the first set of multiple access signatures being one of the M1 sets of multiple access signatures of a first type; the M1 first-class candidate offset sets are in one-to-one correspondence with the M1 first-class multiple access signature sets respectively.

As an embodiment, the user equipment used for wireless communication above is characterized in that the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

Disclosed herein is a base station device used for wireless communication, characterized by comprising:

a first transmitter module that transmits first information;

a second receiver module to receive the first wireless signal;

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transmitter module further transmits a second signaling; the second signaling is used to determine that sharing of the first frequency band based on the long term other technology is guaranteed absent; the frequency domain resources occupied by the first wireless signal belong to the first frequency band.

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transmitter module further transmits second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

As an embodiment, the base station apparatus used for wireless communication described above is characterized in that the sender of the first wireless signal selects the target offset from the first set of offsets by himself.

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transmitter module further transmits a third signaling; the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling comprises the first information; the M1 is a positive integer.

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transmitter module further transmits a fourth signaling; the fourth signaling is used for indicating M1 multiple access signature sets of a first type, wherein the first multiple access signature set is one of the M1 multiple access signature sets of the first type; the M1 first-class candidate offset sets are respectively in one-to-one correspondence with the M1 first-class multiple access signature sets.

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first offset set is used to determine the first multiple access signature set from the M1 multiple access signature sets of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

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

associating said first set of offsets with said first set of multiple access signatures, the selected multiple access signature affecting, for the user equipment, the value of the selected target offset and thus the transmission time of said first radio signal; therefore, the AUL transmission based on different types of multiple access signatures is staggered in the time domain.

Establishing a connection between a plurality of multiple access signature sets based on different NOMA techniques or having different requirements for orthogonality, respectively, and a plurality of offset sets, wherein different offset sets correspond to different potential transmission start times and potential transmission stop times; for the base station side, blind detection between different starting time and ending time only adopts a corresponding multiple access signature set, and the implementation complexity of the base station is reduced; from the network side, the NOMA technology configuration with high orthogonality requirements includes offset sets with less offsets to ensure orthogonality, and the NOMA technology configuration with low orthogonality requirements includes offset sets with more offsets to ensure flexibility; and different thresholds of LBT can be configured for different multiple access signature sets, so that the transmission efficiency of NOMA is further improved.

Different NOMA techniques correspond to different tolerances to collisions, and the user equipment determines the threshold for performing energy detection according to the selected multiple access signature set, thereby ensuring the NOMA performance.

When no technology other than the 3GPP protocol such as WiFi exists in the first frequency band, since NOMA is inherently an inter-user interference resistant technology, the ue may employ a more aggressive threshold (lower threshold) for LBT listening to obtain more opportunities for AUL transmission without worrying about unfairness for other non-3 GPP access technologies.

The user equipment determines the offset set by first determining the multiple access signature set or determines the multiple access signature set by first determining the offset set; the user equipment can more flexibly realize the transmission of the AUL uplink NOMA, and the additional signaling overhead is avoided.

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 flow diagram of first information according to an 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;

figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;

FIG. 5 shows a flow diagram of a first wireless signal according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a first time instant and a second time instant according to an embodiment of the present application;

fig. 7 shows a schematic diagram of a first multiple access signature set according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a given time region according to the present application;

FIG. 9 shows a schematic diagram of M1 time regions according to the present application;

FIG. 10 shows a schematic diagram of energy detection according to the present application;

FIG. 11 shows a schematic diagram of receiving a first wireless signal according to the present application;

fig. 12 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 13 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application;

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of the first information, as shown in fig. 1.

In embodiment 1, the ue in this application first receives first information and then transmits a first radio signal; the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first class; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the transmission of the first wireless signal is Grant Free (Grant Free) or the transmission of the first wireless signal is Contention Based (Contention Based).

As a sub-embodiment, the unit of any one of the K1 first type offsets is microseconds.

As a sub-embodiment, any one of the K1 first type offsets is equal to a duration of a positive integer number of multicarrier symbols.

As a sub-embodiment, a given first type offset is any one of the K1 first type offsets, the given first type offset is equal to one of {16,25,34,43,52,61}, and the unit of the given first type offset is microseconds.

As a sub-embodiment, the given first class offset is any one of the K1 first class offsets, the given first class offset is equal to L x T, L is a positive integer no greater than 14, and T is a duration of one multicarrier symbol.

As a sub-embodiment, the Multi-Carrier symbol in the present application is one of an OFDM (Orthogonal Frequency Division Multiplexing) symbol, an SC-Carrier Frequency Division Multiplexing Access (SC-FDMA) symbol, a Filter Bank Multi-Carrier (FBMC) symbol, an OFDM symbol including a Cyclic Prefix (CP), a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol including a CP.

As a sub-embodiment, the frequency domain resource occupied by the first wireless signal belongs to an unlicensed spectrum.

As a sub-embodiment, the first information is a Radio Resource Control (RRC) signaling.

As a sub-embodiment, the first information is Cell-Specific (Cell-Specific).

As a sub-embodiment, the first information is specific to a terminal group to which the user equipment belongs.

As a sub-embodiment, the first information is transmitted between the base station and the user equipment by a wireless signal.

As a sub-embodiment, the first information is transmitted through RRC signaling.

As a sub-embodiment, the first set of multiple access signatures comprises P1 multiple access signatures of a first type, where P1 is a positive integer greater than 1.

As an auxiliary embodiment of the sub-embodiment, any one of the P1 first-type Multiple Access signatures is an MA (Multiple Access) Signature.

As an additional embodiment of this sub-embodiment, any two first-type multiple access signatures of the P1 first-type multiple access signatures are orthogonal.

As a subsidiary embodiment of this sub-embodiment, any two first-type multiple-access signatures of said P1 first-type multiple-access signatures are quasi-orthogonal.

As an auxiliary embodiment of the sub-embodiment, any one of the P1 first-type multiple access signatures includes one or more of { sequence, codebook (Codebook), codeword (Codeword), interleaving pattern (pattern), mapping pattern (pattern), demodulation reference signal (Demodulation reference signal), preamble (Preamble), spatial-dimension (Spatial-dimension), power-dimension (Power-dimension) }.

As a sub-embodiment, the one of the positive integer number of multiple access signatures being used to generate the first wireless signal refers to: a first block of bits is used to generate the first wireless signal, the first block of bits is used to generate the first sequence of modulation-coded symbols, the first sequence of modulation-coded symbols is scrambled by one of the positive integer multiple access signatures to generate the first wireless signal.

As a sub-embodiment, the user equipment selects one multiple access signature from the positive integer multiple access signatures by itself to generate the first radio signal.

As a sub-embodiment, the first wireless signal is transmitted on a PUSCH (Physical Uplink Shared Channel).

As a sub-embodiment, the transmission Channel corresponding to the first wireless signal is an UL-SCH (Uplink Shared Channel).

As a sub-embodiment, the second time instant is the boundary of a Slot (Slot).

As a sub-embodiment, the second time instant is the boundary of one sub-frame (Subframe).

As a sub-embodiment, the second time instant is the boundary of a micro-Slot (Mini-Slot).

As a sub-embodiment, the second time instant is a boundary of one multicarrier symbol.

Example 2

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

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating a network architecture 200 of NR5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access Network) 202,5G-CN (5G-Core Network,5G Core Network)/EPC (Evolved Packet Core) 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, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through the S1/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213.MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through the S-GW212, and the S-GW212 itself is connected to the P-GW213. 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 a sub-embodiment, the UE201 corresponds to the UE in the present application.

As a sub-embodiment, the gNB203 corresponds to the base station in this application.

As a sub-embodiment, the UE201 is a terminal supporting wireless communication over an unlicensed spectrum.

As a sub-embodiment, the UE201 is a terminal supporting AUL transmission.

As a sub-embodiment, the UE201 is a terminal supporting NOMA.

As a sub-embodiment, the UE201 is a terminal supporting narrowband LBT.

As a sub-embodiment, the gNB203 supports wireless communication over unlicensed spectrum.

As a sub-embodiment, the gNB203 supports AUL transmission.

As a sub-embodiment, the gNB203 supports NOMA-based uplink transmission.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (gNB or eNB) 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 UE and the gNB through PHY301. 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 upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data 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 a RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer). 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 a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in this application.

As a sub-embodiment, the radio protocol architecture of fig. 3 is applicable to the base station in the present application.

As a sub-embodiment, the first wireless signal in the present application is generated in the PHY301.

As a sub-embodiment, the first wireless signal in the present application is generated in the MAC sublayer 302.

As a sub-embodiment, the first information in the present application is generated in the RRC sublayer 306.

As a sub-embodiment, the second signaling in this application is generated in the RRC sublayer 306.

As a sub-embodiment, the second information in this application is generated in the RRC sublayer 306.

As a sub-embodiment, the second information in the present application is generated in the PHY301.

As a sub-embodiment, the third signaling in this application is generated in the RRC sublayer 306.

As a sub-embodiment, the fourth signaling in this application is generated in the RRC sublayer 306.

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.

The base station apparatus (410) includes a controller/processor 440, memory 430, receive processor 412, transmit processor 415, transmitter/receiver 416, and antenna 420.

User equipment (450) includes controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, transmitter/receiver 456, and antenna 460.

In UL (Uplink) transmission, processing related to the base station apparatus (410) includes:

a receiver 416 receiving the radio frequency signal through its corresponding antenna 420, converting the received radio frequency signal into a baseband signal, and providing the baseband signal to the receive processor 412;

a receive processor 412 that performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, among others;

a receive processor 412, which performs various signal receive processing functions for the L1 layer (i.e., physical layer) including multi-antenna reception, despreading (Despreading), code division multiplexing, precoding, etc.;

a controller/processor 440 implementing L2 layer functions and associated with memory 430 storing program codes and data;

the controller/processor 440 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450; upper layer packets from controller/processor 440 may be provided to the core network;

a controller/processor 440, which determines a target air interface resource that may be occupied by a target wireless signal, and sends the result to the receive processor 412; determining whether the target uplink wireless signal occupies the target air interface resource through blind detection; the target wireless signal comprises the first wireless signal in this application; the target air interface resource comprises at least one of { time domain resource, frequency domain resource and space resource } occupied by the first wireless signal, and the space resource corresponds to the first antenna port group; determining a space receiving parameter for receiving the first wireless signal according to the first antenna port group;

in UL transmission, the processing related to the user equipment (450) includes:

a data source 467 that provides upper layer data packets to the controller/processor 490. Data source 467 represents all protocol layers above the L2 layer;

a transmitter 456 for transmitting a radio frequency signal via its respective antenna 460, converting the baseband signal into a radio frequency signal and supplying the radio frequency signal to the respective antenna 460;

a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, and physical layer signaling generation, etc.;

a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, spreading, code division multiplexing, precoding, etc.;

controller/processor 490 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation of the gNB410, implementing L2 layer functions for the user plane and control plane;

the controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410;

a controller/processor 490 that determines the target air interface resources occupied by the target wireless signal itself and sends the result to the transmit processor 455; the target wireless signal comprises the first wireless signal in this application; the target air interface resource comprises at least one of { time domain resource, frequency domain resource, space resource } occupied by the first wireless signal, and the space resource corresponds to the first antenna port group;

as a sub-embodiment, the UE450 apparatus comprises: 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, with the at least one processor, the UE450 apparatus at least: receiving first information and sending a first wireless signal; the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first class; starting from a first moment, a time interval between the first moment and a second moment is equal to a target offset, wherein the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first information and sending a first wireless signal; the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first class; starting from a first moment, a time interval between the first moment and a second moment is equal to a target offset, wherein the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the gNB410 apparatus comprises: 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 gNB410 apparatus at least: sending first information and receiving a first wireless signal; the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first class; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending first information and receiving a first wireless signal; the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first class; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the UE450 corresponds to a user equipment in the present application.

As a sub-embodiment, the gNB410 corresponds to a base station in the present application.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the first information.

As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the first wireless signal.

As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to perform energy detection for the first frequency band.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the second signaling.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the second information.

As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to receive the third signaling.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the fourth signaling.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the first information.

As a sub-embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the first wireless signal.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the second signaling.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the second information.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the third signaling.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the fourth signaling.

Example 5

Embodiment 5 illustrates a flow chart of a first wireless signal, as shown in fig. 5. In fig. 5, base station N1 is a maintenance base station of the serving cell of user equipment U2; wherein the step identified by block F0 in the figure is optional.

For theBase station N1Transmitting a second signaling in step S10; transmitting a third signaling in step S11; transmitting a fourth signaling in step S12; transmitting first information in step S13; transmitting the second information in step S15; in step S15, a first wireless signal is received.

ForUser equipment U2Receiving a second signaling in step S20; receiving a third signaling in step S21; receiving a fourth signaling in step S22; receiving the first information in step S23; receiving second information in step S24; performing energy detection for the first frequency band in step S25; in step S26, a first wireless signal is transmitted.

In embodiment 5, the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the energy detection is used to determine that the first frequency band is unoccupied, to which the frequency domain resources occupied by the first wireless signal belong; the second signaling is used to determine that sharing the first frequency band based on a long term other technology is guaranteed to be absent; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface; the user equipment U2 selects the target offset from the first offset set by itself; the third signaling is used to indicate M1 first class candidate offset sets, which are one of the M1 first class candidate offset sets; the third signaling comprises the first information; said M1 is a positive integer; the fourth signaling is used to indicate M1 sets of multiple access signatures of a first type, the first set of multiple access signatures being one of the M1 sets of multiple access signatures of a first type; the M1 first-class candidate offset sets respectively correspond to the M1 first-class multiple access signature sets one by one; the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

As a sub-embodiment, the air interface in this application corresponds to the interface between the UE201 and the NR node B203 in embodiment 2.

As a sub-embodiment, the energy detection is implemented by an energy detection method in WiFi.

As a sub-embodiment, the energy detection is implemented by measuring RSSI (Received Signal Strength Indication).

As a sub-embodiment, the performing energy detection for the first frequency band refers to: the user equipment U2 performs Q energy detections in Q time sub-pools of the first frequency band, respectively, where Q is a positive integer greater than 1.

As an additional embodiment of this sub-embodiment, the Q time sub-pools are located before the first time instant in the time domain.

As an additional embodiment of this sub-embodiment, one time of said energy detection means: the user equipment U2 monitors the received power in a given time unit belonging to one of the Q time sub-pools.

As an auxiliary embodiment of this sub-embodiment, one time of said energy detection means: the user equipment U2 monitors the received energy in a given time unit belonging to one of the Q time sub-pools.

As an auxiliary embodiment of this sub-embodiment, one time of said energy detection means: the user equipment U2 perceives (Sense) all radio signals on a given frequency domain resource in a given time unit to obtain a given power; the given frequency domain resource is the first frequency band; the given time unit belongs to one of the Q time sub-pools.

As an auxiliary embodiment of this sub-embodiment, one time of said energy detection means: the user equipment U2 perceives all radio signals on a given frequency domain resource in a given time unit to obtain a given energy; the given frequency domain resource is the first frequency band; the given time unit belongs to one of the Q time sub-pools.

As an additional embodiment of this sub-embodiment, the energy detection is implemented in a manner defined in section 15 of 3gpp TS 36.213.

As an auxiliary embodiment of this sub-embodiment, the energy detection is implemented by an energy detection manner in LTE LAA.

As an additional embodiment of this sub-embodiment, the energy detection is an energy detection in LBT.

As an adjunct embodiment of this sub-embodiment, the energy detection is energy detection in CCA (Clear Channel Assessment).

As an additional embodiment of this sub-embodiment, the detection units corresponding to the Q energy detections are all dBm (decibel).

As an auxiliary embodiment of the sub-embodiment, the detection units corresponding to the Q energy detections are all milliwatts.

As an additional embodiment of this sub-embodiment, the detection units corresponding to the Q times of energy detection are all joules.

As an additional embodiment of this sub-embodiment, the time lengths of any two of the Q time sub-pools are equal.

As an additional embodiment of this sub-embodiment, the two time sub-pools of the Q time sub-pools have different time lengths.

As an additional embodiment of this sub-embodiment, there is a time sub-pool of 16 microseconds in length among the Q time sub-pools.

As an additional embodiment of this sub-embodiment, the earliest one of the Q time sub-pools has a different time length from the other time sub-pools.

As an additional embodiment of this sub-embodiment, any two of the Q time sub-pools are orthogonal in time.

As an additional embodiment of this sub-embodiment, the Q time sub-pools occupy contiguous time domain resources.

As an auxiliary embodiment of this sub-embodiment, any two of the Q time sub-pools occupy discontinuous time domain resources.

As an auxiliary embodiment of the sub-embodiment, any one of the Q time sub-pools occupies continuous time domain resources.

As an additional embodiment of this sub-embodiment, the Q time sub-pools are listening times in Category 4 (fourth class) LBT.

As an additional embodiment of this sub-embodiment, the Q time sub-pools include a Defer (Defer) slot and an avoid (Back-off) slot in Category 4 (fourth type) LBT.

As a sub-embodiment of this sub-embodiment, said energy detection is used to determine that said first frequency band is unoccupied by: the energy detected by each of the Q energy detections is lower than a first threshold, and the user equipment U2 determines to start transmitting the first wireless signal at the first time.

As an example of this subsidiary embodiment, said first threshold value is fixed or said first threshold value is configured by higher layer signalling.

As an example of this subsidiary embodiment, said first threshold value is related to said first set of offsets.

As an example of this subsidiary embodiment, said first threshold value is related to said first set of multiple access signatures.

As a sub-embodiment, the first frequency band is a Carrier (Carrier).

As a sub-embodiment, the first band is a BWP (Bandwidth Part).

As a sub-embodiment, the first frequency band is a part of one carrier.

As a sub-embodiment, the first frequency band is a sub-band (Subband).

As one sub-embodiment, the first frequency band is composed of a positive integer number of subcarriers (subcarriers) consecutive in the frequency domain.

As a sub-embodiment, the bandwidth of the first frequency band is equal to 20MHz.

As a sub-embodiment, the bandwidth of the first frequency band is equal to 10MHz.

As a sub-embodiment, the bandwidth of the first frequency band is equal to 2.16GHz.

As a sub-embodiment, the second signaling is an RRC signaling.

As an additional embodiment of this sub-embodiment, the second signaling is cell-specific.

As an additional embodiment of this sub-embodiment, the second signaling is specific to the first frequency band.

As a sub-embodiment, the second signaling is a broadcast message.

As a sub-embodiment, the second signaling is physical layer signaling.

As a sub-embodiment, the second signaling used to determine that sharing the first frequency band based on other technologies for a long period of time is guaranteed to be absent refers to: the second signaling is used to indicate that the first frequency band will not have a transmission based on a radio access technology under a non-3 GPP protocol for a longer time window.

As a subsidiary embodiment of the sub-embodiment, the wireless access technology under the non-3 GPP protocol includes at least one of { WiFi, bluetooth, infrared }.

As an auxiliary embodiment of the sub-embodiment, the radio access technology under the non-3 GPP protocol includes a radio access technology under an IEEE 802.1x protocol.

As a sub-embodiment, the second information is an RRC signaling.

As a sub-embodiment, the second information is a physical layer dynamic signaling.

As a sub-embodiment, the second information includes first sub-information and second sub-information, the first sub-information is used to indicate the first time window, and the second sub-information is used to indicate frequency domain resources occupied by the first wireless signal.

As an auxiliary embodiment of the sub-embodiment, the first sub-information is indicated by RRC signaling, and the second sub-information is indicated by physical layer dynamic signaling.

As a sub-embodiment, the user equipment U2 selects the target offset from the first offset set by itself means: the user equipment U2 randomly selects one first class offset from the K1 first class offsets as the target offset.

As a sub-embodiment, any one of the M1 first-class candidate offset sets includes a positive integer number of target offsets.

As a subsidiary embodiment of this sub-embodiment, the unit of any one of said positive integer number of target offsets is microseconds or any one of said positive integer number of target offsets is equal to the duration of a positive integer number of multicarrier symbols.

As an additional embodiment of this sub-embodiment, any one of the positive integer target offsets is a positive integer.

As a sub-embodiment, the first target offset set and the second target offset set are any two different first-class candidate offset sets among the M1 first-class candidate offset sets, and at least one target offset in the first target offset set does not belong to the second target offset set.

As an auxiliary embodiment of the sub-embodiment, the first target offset set and the second target offset set are any two different first-class candidate offset sets in the M1 first-class candidate offset sets, and any one target offset in the first target offset set does not belong to the second target offset set.

As a sub-embodiment, any one of the M1 first-type multiple access signature sets includes a positive integer number of candidate multiple access signatures.

As an additional embodiment of this sub-embodiment, the candidate multiple access Signature is a MA Signature.

As a sub-embodiment of this sub-embodiment, any two candidate multiple access signatures in one of said first type of multiple access signature sets are orthogonal.

As an additional embodiment of this sub-embodiment, any two candidate multiple access signatures in one of said first type of multiple access signature sets are quasi-orthogonal.

As a subsidiary embodiment of this sub-embodiment, said candidate multiple access signatures comprise one or more of { sequence, codebook, codeword, interleaving pattern, mapping pattern, demodulation reference signal, preamble, spatial dimension, power dimension }.

As a sub-embodiment, the index of the first multiple access signature set in the M1 first class multiple access signature sets is equal to the index of the first offset set in the M1 first class candidate offset sets.

As a sub-embodiment, the third signaling and the fourth signaling belong to the same RRC signaling.

As a sub-embodiment, the user equipment U2 selects the first offset set from the M1 first class candidate offset sets by itself.

As a sub-embodiment, the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type by: and the user equipment U2 determines the first multiple access signature set from the M1 multiple access signature sets according to the indexes of the first offset set in the M1 candidate offset sets of the first class.

As a sub-embodiment, the user equipment U2 selects the first multiple access signature set from the M1 multiple access signature sets of the first type by itself.

As a sub-embodiment, the first set of multiple access signatures is used to determine the first set of offsets from the M1 first class sets of candidate offsets refers to: and the user equipment U2 determines the first offset set from the M1 candidate offset sets in the first class according to the index of the first multiple access signature set in the M1 candidate offset sets in the first class.

As a sub-embodiment, the base station N1 blindly detects the first wireless signal in the first time window.

As an additional embodiment of this sub-embodiment, the blind detection means: the base station N1 device does not know the first time instant before receiving the first wireless signal.

As an additional embodiment of this sub-embodiment, the blind detection means: any one of the M1 first-type multiple access signature sets includes a positive integer of candidate multiple access signatures, and the base station N1 device blindly detects the first wireless signal in the first time window according to all candidate multiple access signatures included in the M1 first-type multiple access signature sets.

As an additional embodiment of this sub-embodiment, the blind detection means: the M1 first-class multiple access signature sets are in one-to-one correspondence with the M1 first-class candidate offset sets, and the M1 first-class candidate offset sets are in one-to-one correspondence with M1 time regions respectively; a given first-class multiple access signature set is any one of the M1 first-class multiple access signature sets, the given first-class multiple access signature set corresponds to a given first-class candidate offset set of the M1 first-class candidate offset sets, and the given first-class candidate offset set corresponds to a given time region of the M1 time regions; the base station N1 blindly detects the first wireless signal in the given time region by the multiple access signatures comprised by the given first type of multiple access signature set.

Example 6

Example 6 illustrates a schematic diagram of a first time and a second time, as shown in fig. 6. In fig. 6, the second time is a starting time of the first time window in this application, and the first time is a time domain starting position of the user equipment in this application for transmitting the first wireless signal; the second time is before the first time in the time domain, and the time interval between the first time and the second time is equal to the target offset in the present application.

As a sub-embodiment, the second time is a boundary of a slot.

As a sub-embodiment, the second time instant is a boundary of a sub-frame.

As a sub-embodiment, the second time instant is the boundary of one micro Slot (Mini-Slot).

As a sub-embodiment, after obtaining downlink synchronization, the user equipment and the base station equipment in this application determine the starting time of the first time window.

As a sub-embodiment, after obtaining uplink synchronization, the user equipment and the base station equipment in this application determine the starting time of the first time window.

As a sub-embodiment, the user equipment and the base station equipment in the present application determine the first time after obtaining downlink synchronization.

As a sub-embodiment, the user equipment and the base station equipment in the present application determine the first time after obtaining uplink synchronization.

As a sub-embodiment, the user equipment starts to transmit the first radio signal from the second time.

As a sub-embodiment, the duration of the first wireless signal in the time domain is fixed, or the duration of the first wireless signal in the time domain is configured through higher layer signaling.

As a sub-embodiment, the first wireless signal includes target signaling, which is used to determine a duration of the first wireless signal in a time domain.

As an additional embodiment to the two sub-embodiments described above, the duration of the first radio signal in the time domain is equal to the duration of a positive integer number of multicarrier symbols.

As an example of this subsidiary embodiment, said positive integer number of multicarrier symbols is consecutive in the time domain.

As a sub-embodiment, a duration of the first wireless signal in the time domain is related to the first set of multiple access signatures.

As a sub-embodiment, a duration of the first wireless signal in the time domain is related to the first set of offsets.

Example 7

Example 7 illustrates a schematic diagram of a first multiple access signature set, as shown in fig. 7. In fig. 7, the first set of multiple access signatures comprises P1 multiple access signatures of the first type, where P1 is a positive integer greater than 1; the P1 multiple-access signatures of the first type comprise a { multiple-access signature of the first type #1, …, a multiple-access signature of the first type # i, …, a multiple-access signature of the first type # P1}; the first type multiple access signatures #1 to the first type multiple access signatures # P1 respectively occupy first type air interface resources #1 to first type air interface resources # P1 shown in the figure; the first type of air interface resource #1 to the first type of air interface resource # P1 are represented by rectangles filled with dots with indexes i in the figure; any one of the first type air interface resource #1 to the first type air interface resource # P1 is a time frequency code resource, the time frequency code resource occupies a given time frequency resource in a time domain and a frequency domain, the given time frequency resource is used for transmitting information in a code division multiplexing mode, and the time frequency code resource refers to a given code domain resource in the given time frequency resource.

As a sub-embodiment, the signature sequences corresponding to any two different first-type multiple-access signatures from the first-type multiple-access signature #1 to the first-type multiple-access signature # P1 are orthogonal, or the signature sequences corresponding to any two different first-type multiple-access signatures from the first-type multiple-access signature #1 to the first-type multiple-access signature # P1 are quasi-orthogonal.

As a sub-embodiment, the ue in this application is a first terminal, and a ue other than the ue in this application is a second terminal, where the first terminal and the second terminal simultaneously select the first multiple access signature set and the first offset set in this application, and a starting time of the first terminal sending the first radio signal is different from a starting time of the second terminal sending an uplink radio signal.

As a sub-embodiment, the ue in this application is a first terminal, and a ue other than the ue in this application is a second terminal; the first terminal and the second terminal simultaneously select the first set of multiple access signatures and the first set of offsets in this application, the first set of offsets including only one offset; the starting time of the first terminal for transmitting the first wireless signal and the starting time of the second terminal for transmitting the uplink wireless signal are the same.

As a sub-embodiment, the given time-frequency Resource corresponding to the time-frequency code Resource includes R1 sub-time-frequency resources, and each sub-time-frequency Resource includes R2 REs (Resource elements); r1 modulation symbols are respectively mapped to the R1 sub-time-frequency resources, wherein each modulation symbol is mapped to the R2 REs after being multiplied by a first characteristic sequence; the first signature sequence includes R2 elements and is the given code domain resource.

As an auxiliary embodiment of this sub-embodiment, the first signature sequence corresponds to any one of the P1 multiple access signatures of the first type.

Example 8

Example 8 illustrates a schematic diagram of a given time zone, as shown in fig. 8. In fig. 8, M1 time regions respectively correspond to the M1 first-class candidate offset sets in the present application; the given time region is any one of the M1 time regions, and the given time region corresponds to a given candidate offset set of the M1 first-class candidate offset sets; the largest target offset in the given set of candidate offsets is a third target offset and the smallest target offset in the given set of candidate offsets is a fourth target offset; the time interval between the start time of the given time zone in the time domain and the first time instant in the present application is equal to the fourth target offset, and the time interval between the end time of the given time zone in the time domain and the first time instant in the present application is equal to the third target offset.

As a sub-embodiment, the given time region corresponds to a time domain range of a transmission start time of the first radio signal determined by the user equipment selecting a target offset in the given candidate offset set.

As a sub-embodiment, the given candidate offset set corresponds to a given multiple access signature set of the M1 multiple access signature sets of the first type in the present application, and in a given time region, the base station in the present application blindly detects the first wireless signal only using multiple access signatures included in the given multiple access signature set.

Example 9

Example 9 illustrates a schematic diagram of M1 time regions, as shown in fig. 9. In fig. 9, M1 time regions respectively correspond to the M1 first-class candidate offset sets in the present application; the M1 time zones are time zone #1 to time zone # M1, respectively.

As a sub-embodiment, the duration of any one of the M1 time regions in the time domain is not greater than the duration of 1 multicarrier symbol.

As a sub-embodiment, the M1 time regions are orthogonal in the time domain.

As a sub-embodiment, at least two time regions of the M1 time regions overlap in the time domain.

Example 10

Example 10 illustrates a schematic diagram of energy detection. In fig. 10, the ue in this application first determines the target offset in this application, then determines the first time in this application according to the target offset, and performs energy detection in a second time window before the first time.

As a sub-embodiment, the second time window includes the Q time sub-pools in this application.

As a sub-embodiment, the user equipment selects the starting time of the second time window in the time domain by itself.

As a sub-embodiment, the target offset belongs to the first offset set, the first offset set corresponds to the first multiple access signature set, and the user equipment determines the threshold of energy detection according to the first multiple access signature set.

As an additional embodiment of this sub-embodiment, the threshold for energy detection is the first threshold in this application.

Example 11

Embodiment 11 illustrates a schematic diagram of receiving a first wireless signal. In fig. 11, M1 first-class candidate offset sets respectively correspond to M1 first-class multiple access signature sets one to one, and the M1 first-class candidate offset sets respectively correspond to time zones #1 to # M1 shown in the figure.

As a sub-embodiment, the ue selects a given candidate offset set of the M1 first-class candidate offset sets, and starts to generate the first radio signal in a given time region corresponding to the given candidate offset set by using one of multiple access signatures included in a given multiple access signature set corresponding to the given candidate offset set; the given multiple access signature set is a first-class multiple access signature set corresponding to the given candidate offset set among the M1 first-class multiple access signature sets.

As a subsidiary embodiment of the sub-embodiment, the base station starts to blindly detect the first wireless signal using multiple access signatures included in a given multiple access signature set at a starting time corresponding to a given time zone.

Example 12

Embodiment 12 is a block diagram illustrating a processing apparatus in a user equipment, as shown in fig. 12. In fig. 12, the UE processing apparatus 1200 is mainly composed of a first receiver module 1201 and a first transceiver module 1202.

A first receiver module 1201 receiving first information;

a first transceiver module 1202 that transmits a first wireless signal;

in embodiment 12, the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the first transceiver module 1202 also performs energy detection for a first frequency band; the energy detection is used to determine that the first frequency band to which the frequency domain resources occupied by the first wireless signal belong is unoccupied.

As a sub-embodiment, the first receiver module 1201 also receives a second signaling; the second signaling is used to determine that sharing the first frequency band based on the long term other technology is guaranteed to be absent.

As a sub embodiment, the first receiver module 1201 also receives second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

As a sub-embodiment, the user equipment selects the target offset from the first offset set by itself.

As a sub embodiment, the first receiver module 1201 also receives a third signaling; the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling comprises the first information; and M1 is a positive integer.

As a sub-embodiment, the first receiver module 1201 also receives a fourth signaling; the fourth signaling is used to indicate M1 sets of multiple access signatures of a first type, the first set of multiple access signatures being one of the M1 sets of multiple access signatures of a first type; the M1 first-class candidate offset sets are respectively in one-to-one correspondence with the M1 first-class multiple access signature sets.

As a sub-embodiment, the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

As a sub-embodiment, the first receiver module 1201 includes at least two of the receiver 456, the receive processor 452, and the controller/processor 490 of embodiment 4.

As a sub-embodiment, the first transceiver module 1202 includes at least the first four of the transmitter/receiver 456, the transmit processor 455, the receive processor 452, and the controller/processor 490 of embodiment 4.

Example 13

Embodiment 13 illustrates a block diagram of a processing device in a base station apparatus, as shown in fig. 13. In fig. 13, a base station device processing apparatus 1300 mainly comprises a first transmitter module 1301 and a second receiver module 1302.

A first transmitter module 1301, which transmits first information;

a second receiver module 1302 that receives a first wireless signal;

in embodiment 13, the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer.

As a sub-embodiment, the first transmitter module 1301 also transmits a second signaling; the second signaling is used to determine that the first frequency band is guaranteed to be absent based on the long term other technology sharing; the frequency domain resource occupied by the first wireless signal belongs to the first frequency band.

As a sub-embodiment, the first transmitter module 1301 also transmits second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

As a sub-embodiment, the sender of the first wireless signal chooses the target offset from the first set of offsets on his or her own.

As a sub-embodiment, the first transmitter module 1301 also transmits a third signaling; the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling comprises the first information; the M1 is a positive integer.

As a sub-embodiment, the first transmitter module 1301 further transmits a fourth signaling; the fourth signaling is used for indicating M1 multiple access signature sets of a first type, wherein the first multiple access signature set is one of the M1 multiple access signature sets of the first type; the M1 first-class candidate offset sets are in one-to-one correspondence with the M1 first-class multiple access signature sets respectively.

As a sub-embodiment, the first transmitter module 1301 includes at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 of embodiment 4.

As a sub-embodiment, the second receiver module 1302 includes at least two of the receiver 416, the receive processor 412, and the controller/processor 440 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. 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 aircraft, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, on-vehicle Communication equipment, wireless sensor, the network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication) terminal, EMTC (enhanced MTC) terminal, the data card, the network card, on-vehicle 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 method in a user equipment used for wireless communication, comprising:

receiving first information;

transmitting a first wireless signal;

wherein the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; starting from a first moment, a time interval between the first moment and a second moment is equal to a target offset, wherein the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first-class candidate offset sets respectively correspond to the M1 first-class multiple access signature sets one by one; the second time is before the first time in the time domain.

2. The method of claim 1, comprising:

performing energy detection for a first frequency band;

3. The method of claim 2, comprising:

receiving a second signaling;

4. A method as claimed in any one of claims 1 to 3, comprising:

receiving second information;

5. The method according to any of claims 1 to 3, wherein the user equipment selects the target offset from the first set of offsets on its own.

6. A method according to any one of claims 1 to 3, comprising:

receiving a third signaling;

7. The method of claim 6, comprising:

receiving a fourth signaling;

wherein the fourth signaling is used to indicate the M1 sets of multiple access signatures of the first type.

8. The method according to any of claims 1, 2, 3 or 7, wherein the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

9. A method in a base station used for wireless communication, comprising:

sending first information;

receiving a first wireless signal;

wherein the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first-class candidate offset sets respectively correspond to the M1 first-class multiple access signature sets one by one; the second time is before the first time in the time domain.

10. The method of claim 9, comprising:

sending a second signaling;

11. The method of claim 9, comprising:

sending the second information;

12. The method of claim 10, comprising:

sending the second information;

13. The method according to any of claims 9 to 12, wherein the sender of the first wireless signal chooses the target offset from the first set of offsets on his/her own.

14. The method according to any one of claims 9 to 12, comprising:

sending a third signaling;

15. The method of claim 14, comprising:

sending a fourth signaling;

16. The method according to any of claims 9, 10, 11, 12 or 15, wherein the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

17. A user device configured for wireless communication, comprising:

a first receiver module to receive first information;

a first transceiver module that transmits a first wireless signal;

wherein the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first-class candidate offset sets respectively correspond to the M1 first-class multiple access signature sets one by one; the second time is prior to the first time in the time domain.

18. The device of claim 17, wherein the first transceiver module further performs energy detection for a first frequency band; the energy detection is used to determine that the first frequency band to which the frequency domain resources occupied by the first wireless signal belong is unoccupied.

19. The apparatus of claim 18, wherein the first receiver module further receives second signaling; the second signaling is used to determine that sharing the first frequency band based on the long term other technology is guaranteed to be absent.

20. The device according to any of the claims 17 to 19, characterised in that said first receiver module further receives second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

21. The apparatus according to any of claims 17-19, wherein the user equipment selects the target offset from the first set of offsets on its own.

22. The apparatus of any of claims 17 to 19, wherein the first receiver module further receives a third signaling; the third signaling is used to indicate M1 first class candidate offset sets, the first offset set being one of the M1 first class candidate offset sets; the third signaling comprises the first information; and M1 is a positive integer.

23. The device of claim 22, wherein the first receiver module further receives fourth signaling; the fourth signaling is used to indicate the M1 sets of multiple access signatures of the first type.

24. The apparatus according to any of claims 17, 18, 19 or 23, wherein the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.

25. A base station device used for wireless communication, comprising:

a first transmitter module that transmits first information;

a second receiver module to receive the first wireless signal;

wherein the first information is used to determine a first set of offsets, the first set of offsets comprising K1 offsets of a first type; the time domain resource occupied by the first wireless signal starts at a first moment, the time interval between the first moment and a second moment is equal to a target offset, and the target offset is one of the K1 first-class offsets; the second time is the starting time of the first time window; the time domain resource occupied by the first wireless signal belongs to the first time window; the first set of offsets is related to a first set of multiple access signatures, the first set of multiple access signatures comprising a positive integer number of multiple access signatures, one of the positive integer number of multiple access signatures being used to generate the first wireless signal; the first information is transmitted over an air interface; the K1 is a positive integer; the first multiple access signature set is one of M1 multiple access signature sets of a first type; the M1 first-class candidate offset sets respectively correspond to the M1 first-class multiple access signature sets one by one; the second time is prior to the first time in the time domain.

26. The device of claim 25, wherein the first transmitter module further transmits a second signaling; the second signaling is used to determine that the first frequency band is guaranteed to be absent based on the long term other technology sharing; the frequency domain resource occupied by the first wireless signal belongs to the first frequency band.

27. The apparatus of claim 25, wherein the first transmitter module further transmits second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

28. The apparatus of claim 26, wherein the first transmitter module further transmits second information; the second information is used to indicate at least one of the first time window and frequency domain resources occupied by the first wireless signal; the second information is transmitted over an air interface.

29. The apparatus of any of claims 25 to 28, wherein the sender of the first wireless signal chooses the target offset from the first set of offsets on his or her own.

30. The apparatus according to any of claims 25 to 28, wherein said first transmitter module further transmits a third signaling; the third signaling is used to indicate M1 first class candidate offset sets, which are one of the M1 first class candidate offset sets; the third signaling comprises the first information; and M1 is a positive integer.

31. The device of claim 30, wherein the first transmitter module further transmits a fourth signaling; the fourth signaling is used to indicate the M1 sets of multiple access signatures of the first type.

32. The apparatus according to any of claims 25, 26, 27, 28 or 31, wherein the first set of offsets is used to determine the first set of multiple access signatures from the M1 sets of multiple access signatures of the first type; or the first set of multiple access signatures is used to determine the first set of offsets from the M1 sets of candidate offsets of the first class.