CN114143898B

CN114143898B - User equipment, method and device in base station for wireless communication

Info

Publication number: CN114143898B
Application number: CN202111373269.0A
Authority: CN
Inventors: 武露; 张晓博; 杨林
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Filing date: 2018-12-10
Publication date: 2024-10-22
Anticipated expiration: 2038-12-10

Abstract

The application discloses a user equipment, a method and a device in a base station, which are used for wireless communication. The user equipment receives K0 first signaling and then sends a first wireless signal in a target time-frequency resource set; the K0 first signaling is used for determining K time-frequency resource blocks, and frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are orthogonal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set.

Description

User equipment, method and device in base station for wireless communication

The application is a divisional application of the following original application:

filing date of the original application: 2018, 12 and 10 days

Number of the original application: 201811503830.0

-The name of the invention of the original application: user equipment, method and device in base station for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly to communication methods and apparatus supporting data transmission over unlicensed spectrum (Unlicensed Spectrum).

Background

In the conventional 3GPP (3 rd Generation Partner Project, third generation partnership project) LTE (Long-term Evolution) system, data transmission can only occur on the licensed spectrum, however, with the rapid increase of the traffic, especially in some urban areas, the licensed spectrum may be difficult to meet the traffic demand. Communications on unlicensed spectrum in Release 13 and Release 14 are introduced by the cellular system and used for transmission of downlink and uplink data. To ensure compatibility with access technologies on other unlicensed spectrum, LBT (Listen Before Talk, listen-before-talk) technology is adopted by LAA (LICENSED ASSISTED ACCESS, licensed spectrum assisted access) of LTE to avoid interference due to multiple transmitters simultaneously occupying the same frequency resources.

The uplink transmission in the conventional LTE system is often based on Grant (Grant) from a base station, and in order to avoid the resource utilization reduction and delay caused by frequent LBT, AUL (Autonomous UpLink ) transmission is introduced in Release 15 on an unlicensed spectrum. In the AUL, a UE (User Equipment) may autonomously perform uplink transmission in an air interface resource preconfigured by a base station. Currently, 5G NR (New Radio Access Technology ) is under discussion about access technologies for unlicensed spectrum, grant-free uplink transmission on unlicensed spectrum needs to be reconsidered.

Disclosure of Invention

The inventor finds that how to improve the channel access opportunity in the uplink transmission on the unlicensed spectrum of the NR system and more effectively realize the sharing of unlicensed spectrum resources by a plurality of sending nodes is a key problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that the embodiments of the present application and the features in the embodiments may be arbitrarily combined with each other without collision.

The application discloses a method used in user equipment for wireless communication, which is characterized by comprising the following steps:

-receiving K0 first signaling, the K0 first signaling being used for determining K time-frequency resource blocks;

-transmitting a first wireless signal in a target set of time-frequency resources;

Wherein, the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are all orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, the problem to be solved by the present application is: to increase resource utilization, multiple UEs may share the same unlicensed spectrum resources. In order to reduce the interference between users caused by the simultaneous preemption of channels by multiple UEs, how the base station allocates time-frequency resources or starts to transmit to the UEs is a key problem to be solved.

As an embodiment, the problem to be solved by the present application is: to increase resource utilization, a UE that is not Granted uplink and a UE that is based on grant (Granted) uplink may share the same unlicensed spectrum resource. Grant-based uplink transmissions are typically prioritized over grant-free uplink transmissions on the same time-frequency resources. Therefore, how to design grant-free uplink transmission to avoid that grant-based uplink transmission cannot be transmitted because of occupying the channel is a key problem to be solved.

As an embodiment, the problem to be solved by the present application is: a larger LBT bandwidth results in a lower channel access opportunity, and in order to improve the channel access opportunity, the sharing of unlicensed spectrum resources by multiple transmitting nodes is more effectively realized, and in the case of meeting the requirement of a bandwidth (such as 20mhz at 5GHz carrier frequency and 1GHz at 60GHz carrier frequency) greater than the rule, the channel access opportunity can be improved by selecting a narrowband LBT (i.e. the bandwidth is smaller than CC or BWP). When the base station adopts the narrowband LBT, frequency domain resources that can be transmitted in one CC or BWP in downlink and based on grant uplink may be dynamically changed, and how to design grant-free uplink to reduce the problem that cannot be transmitted based on grant uplink due to occupying channels is a key problem to be solved.

As an embodiment, the essence of the method is that K time-frequency resource blocks belong to one COT obtained by the base station or respectively belong to K cobs obtained by the base station, the target time-frequency resource set is a time-frequency resource allocated to grant-free uplink transmission, the first radio signal is grant-free uplink transmission, and the relation between the time-frequency resource allocated to grant-free uplink transmission and one COT or K cobs obtained by the base station is used to determine the initial sending time set of grant-free uplink transmission. The advantage of adopting the method is that the initial sending moment of the grant-free uplink transmission considers the possible grant-based uplink transmission, and the opportunity of the grant-based uplink transmission to preferentially occupy the channel can be improved.

According to an aspect of the present application, the above method is characterized in that if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are partially overlapped, and the target time-frequency resource set includes time-frequency resources orthogonal to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set.

As an embodiment, the essence of the above method is that if only part of the time-frequency resources allocated to the grant-free uplink transmission belong to one COT or K cobs obtained by the base station, the set of start transmit instants of the grant-free uplink transmission is the first set of start instants (i.e. a set comprising a later start instant). The advantage of adopting the method is that the initial sending moment of the grant-free uplink transmission considers the possible grant-based uplink transmission, and the opportunity of the grant-based uplink transmission to preferentially occupy the channel can be improved.

According to one aspect of the present application, the above method is characterized in that if the time-frequency resources occupied by the target time-frequency resource set belong to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

As an embodiment, the essence of the above method is that if the time-frequency resources allocated to the grant-free uplink transmission all belong to one COT or K cobs obtained by the base station, the set of starting transmission moments of the grant-free uplink transmission is a first set of starting moments (i.e. a set including a later starting moment); if the time-frequency resources allocated to grant-free uplink transmissions are outside of one or K COTs obtained by the base station, then the set of start transmit instants for grant-free uplink transmissions is a second set of start instants (i.e., a set comprising earlier start instants). The advantage of adopting the method is that the initial sending moment of the grant-free uplink transmission considers the possible grant-based uplink transmission, and the opportunity of the grant-based uplink transmission to preferentially occupy the channel can be improved.

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

-performing J first access detections;

Wherein the J first access detections are used to determine that the first wireless signal is transmitted in the target set of time-frequency resources, the J being a positive integer; the J is equal to 1, the J first access detections being performed on a first frequency band comprising frequency domain resources occupied by the target set of time-frequency resources; or the J is greater than 1, the J first access detections are respectively performed on J sub-bands, the target set of time-frequency resources includes J target subsets of resources, the J sub-bands respectively include frequency domain resources occupied by the J target subsets of resources, the J first access detections are used to determine that the first wireless signal is transmitted in only J1 target subsets of resources among the J target subsets of resources, the time-frequency resources occupied by the J1 target subsets of resources include time-frequency resources occupied by the first wireless signal, and the J1 is a positive integer not greater than the J.

-self-selecting a first time window from the N time windows;

The time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1.

-receiving first information;

wherein the first information is used to determine the set of target time-frequency resources.

According to an aspect of the present application, the above method is characterized in that the sender of the K0 first signaling performs M second access detections on M subbands, respectively, the M second access detections being used to determine the K time-frequency resource blocks, the K subbands in the M subbands respectively include frequency domain resources occupied by the K time-frequency resource blocks respectively, and the M is a positive integer greater than 1 and not less than the K.

As an embodiment, the advantage of the above method is that the M second access detections are M narrowband LBTs, respectively, and selecting a narrowband LBT may improve the channel access opportunity.

The application discloses a method used in base station equipment of wireless communication, which is characterized by comprising the following steps:

-transmitting K0 first signaling, the K0 first signaling being used for determining K time-frequency resource blocks;

-receiving a first wireless signal in a target set of time-frequency resources;

-monitoring in the set of target time-frequency resources whether the first wireless signal is transmitted;

Wherein a sender of the first wireless signal performs J first access detections to determine that the first wireless signal is sent in the target set of time-frequency resources, the J being a positive integer; the J is equal to 1, the J first access detections being performed on a first frequency band comprising frequency domain resources occupied by the target set of time-frequency resources; or the J is greater than 1, the J first access detections are respectively performed on J sub-bands, the set of target time-frequency resources includes J target resource subsets, the J sub-bands respectively include frequency domain resources respectively occupied by the J target resource subsets, the J first access detections are used to determine that the first wireless signal is transmitted in only J1 target resource subsets among the J target resource subsets, and the J1 is a positive integer not greater than the J.

According to one aspect of the present application, the method is characterized in that the sender of the first wireless signal selects a first time window from N time windows by itself, the time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1.

-transmitting first information;

-performing M second access detections on M subbands, respectively;

The M second access detections are used to determine the K time-frequency resource blocks, where K subbands in the M subbands respectively include frequency domain resources occupied by the K time-frequency resource blocks, and M is a positive integer greater than 1 and not less than K.

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

-a first receiver receiving K0 first signaling, said K0 first signaling being used for determining K time-frequency resource blocks;

-a first transmitter transmitting a first wireless signal in a target set of time-frequency resources;

The application discloses a base station device for wireless communication, which is characterized by comprising:

-a second transmitter transmitting K0 first signaling, said K0 first signaling being used to determine K time-frequency resource blocks;

-a second receiver receiving a first wireless signal in a target set of time-frequency resources;

As an embodiment, the present application has the following advantages over the conventional scheme:

the application provides a method for distributing time-frequency resources or starting transmission time to the UE, which reduces the inter-user interference caused by that a plurality of UEs simultaneously occupy an unlicensed spectrum.

In order to increase the resource utilization, a UE that is not Granted uplink transmission and a UE that is based on grant (Granted) uplink transmission may share the same unlicensed spectrum resource. Grant-based uplink transmissions are typically prioritized over grant-free uplink transmissions on the same time-frequency resources. The application solves the problem that the grant-free uplink transmission occupies the channel and cannot be sent based on the grant uplink transmission.

The larger LBT bandwidth can lead to lower channel access opportunities, so that the sharing of unlicensed spectrum resources by a plurality of sending nodes can be more effectively realized, and the channel access opportunities can be improved by selecting a narrow-band LBT under the condition that the bandwidth required by regulations (such as 20MHz at 5GHz carrier frequency and 1GHz at 60GHz carrier frequency) is met. When the base station adopts the narrow-band LBT, the application solves the problem that the grant-free uplink transmission occupies a channel and cannot be sent based on the grant uplink transmission.

In the present application, the initial transmission time of the grant-free uplink transmission considers the grant-based uplink transmission which may exist, and increases the opportunity of occupying the channel for the grant-based uplink transmission.

Drawings

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

fig. 1 shows a flow chart of K0 first signaling and first wireless signals according to one embodiment of the application;

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

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

Fig. 4 shows a schematic diagram of an NR (New Radio) node and a UE according to an embodiment of the present application;

Fig. 5 shows a flow chart of wireless transmission according to an embodiment of the application;

Fig. 6 shows a schematic diagram of K0 first signaling versus K time-frequency resource blocks according to an embodiment of the application;

fig. 7 is a schematic diagram showing a relationship between K0 first signaling and K time-frequency resource blocks according to another embodiment of the present application;

8A-8C illustrate schematic diagrams of determining a set of target start moments, respectively, according to one embodiment of the application;

fig. 9 shows a schematic diagram in which a given access detection performed on a given subband is used to determine whether to start transmitting wireless signals at a given moment of the given subband, according to one embodiment of the present application;

Fig. 10 shows a schematic diagram in which a given access detection performed on a given subband is used to determine whether to start transmitting wireless signals at a given moment of the given subband, according to another embodiment of the present application;

fig. 11 shows a block diagram of a processing apparatus in a UE according to an embodiment of the present application;

fig. 12 shows a block diagram of the processing means in the base station apparatus according to one embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flowchart of K0 first signaling and first wireless signals, as shown in fig. 1.

In embodiment 1, the ue in the present application receives K0 first signaling, where the K0 first signaling is used to determine K time-frequency resource blocks; and transmitting the first wireless signal in the target time-frequency resource set. Wherein, the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are all orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, said K0 is equal to 1.

As one embodiment, the K0 is equal to the K.

As one embodiment, the K0 is greater than the K.

As an embodiment, the K0 first signaling is dynamically configured.

As an embodiment, the K0 first signaling is physical layer signaling.

As an embodiment, the K0 first signaling is transmitted on a frequency band deployed on an unlicensed spectrum.

As an embodiment, the K0 first signaling is transmitted on a frequency band deployed on a licensed spectrum.

As an embodiment, the K0 first signaling is DCI (downlink control information ).

As an embodiment, the K0 first signaling is carried by a downlink physical layer control channel (i.e., a downlink channel that can only be used to carry physical layer signaling).

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is PDCCH (Physical Downlink Control Channel ).

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is a PDCCH (short PDCCH).

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is an NR-PDCCH (New Radio PDCCH).

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is NB-PDCCH (Narrow Band PDCCH ).

As an embodiment, the K0 first signaling is terminal Group Specific (Group Specific), and the user equipment is one terminal of the terminal Group.

As an embodiment, the K0 first signaling is cell-common.

As an embodiment, the K0 first signaling is also used to indicate a Slot Format (Slot Format).

As an embodiment, the K0 first signaling is used to indicate that the base station has obtained (Acquired) the COT (Channel Occupy Time, channel occupancy time).

As an embodiment, the K0 first signaling is used to indicate part or all of the time-frequency resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate a part of the time-frequency resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate all time-frequency resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate part or all of the time domain resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate part of the time domain resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate all time domain resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate part or all of the frequency domain resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate a part of the frequency domain resources belonging to the COT that the base station has acquired.

As an embodiment, the K0 first signaling is used to indicate all frequency domain resources belonging to the COT that the base station has acquired.

As an embodiment, the signaling identities of the K0 first signaling are first identities.

As an embodiment, the K0 first signaling is DCI identified by a first identity.

As an embodiment, the first identifier is used to generate RS sequences of DMRS (DeModulation REFERENCE SIGNALS ) corresponding to the K0 first signaling.

As an embodiment, the CRC (Cyclic Redundancy Check ) bit sequences of the K0 first signaling are scrambled by a first identity.

As an embodiment, the first identity is a CC (Component Carrier ) -RNTI (Radio Network Temporary Identifier, radio network tentative identity).

As an embodiment, the first identity is SFI (Slot Format Indicator, slot format indication) -RNTI.

As an embodiment, the first identity is terminal group specific and the user equipment is one terminal of the terminal group.

As an embodiment, the first identity is cell-common.

As an embodiment, the time domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are the same.

As an embodiment, the time domain resources occupied by any two of the K time-frequency resource blocks are the same, or the time domain resources occupied by two of the K time-frequency resource blocks are different.

As an embodiment, the time domain resources occupied by two time-frequency resource blocks in the K time-frequency resource blocks are different.

As a sub-embodiment of the above embodiment, the time domain resources occupied by two of the K time-frequency resource blocks are orthogonal.

As a sub-embodiment of the foregoing embodiment, time domain resources occupied by two time-frequency resource blocks of the K time-frequency resource blocks are partially overlapped.

As an embodiment, the time domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are different.

As a sub-embodiment of the foregoing embodiment, the time domain resources occupied by any two of the K time-frequency resource blocks are orthogonal or partially overlapping.

As an embodiment, the duration of any one of the K time-frequency resource blocks in the time domain does not exceed the maximum channel occupation time.

As an embodiment, the time offset of the ending time and the starting time of any one of the K time-frequency resource blocks does not exceed the maximum channel occupation time.

As an embodiment, the frequency domain resources occupied by each of the K time-frequency resource blocks are predefined or configurable.

As a sub-embodiment of the above embodiment, the frequency domain resources occupied by each of the K time-frequency resource blocks are predefined.

As a sub-embodiment of the above embodiment, the frequency domain resource occupied by each of the K time-frequency resource blocks is configurable.

As an embodiment, the frequency domain resources occupied by any one of the K time-frequency resource blocks are contiguous, and the time domain resources occupied by any one of the K time-frequency resource blocks are contiguous.

As an embodiment, any one of the K time-frequency resource blocks includes a positive integer number of subcarriers in the frequency domain and a positive integer number of multicarrier symbols in the time domain.

As an embodiment, any one of the K time-frequency resource blocks includes a positive integer number of consecutive subcarriers in the frequency domain and a positive integer number of consecutive multicarrier symbols in the time domain.

As an embodiment, the bandwidth of each of the K time-frequency resource blocks is a positive integer multiple of 20 MHz.

As an embodiment, the bandwidth of each of the K time-frequency resource blocks is 20MHz.

As an embodiment, the bandwidth of each of the K time-frequency resource blocks is 1GHz.

As an embodiment, the bandwidth of each of the K time-frequency resource blocks is a positive integer multiple of 1 GHz.

As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency-Division Multiplexing, orthogonal frequency division multiplexing) symbol.

As an embodiment, the multi-carrier symbol is an SC-FDMA (Single-Carrier Frequency-Division Multiple Access, single-carrier frequency division multiple access) symbol.

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

As an embodiment, the target time-frequency Resource set includes a positive integer number of REs (Resource elements).

As one embodiment, the target set of time-frequency resources includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of multicarrier symbols in the time domain.

As one embodiment, the first wireless signal includes at least one of data, control information, and a reference signal.

As one embodiment, the first wireless signal includes data.

As an embodiment, the first wireless signal includes control information.

As one embodiment, the first wireless signal comprises a reference signal.

As one embodiment, the first wireless signal includes data, control information, and a reference signal.

As one embodiment, the first wireless signal includes data and control information.

As one embodiment, the first wireless signal includes control information and a reference signal.

As one embodiment, the first wireless signal includes data and reference signals.

As an embodiment, the data included in the first radio signal is uplink data.

As an embodiment, the control information included in the first radio signal is UCI (Uplink control information ).

As an embodiment, the control Information included in the first radio signal includes at least one of HARQ (Hybrid Automatic Repeat reQuest ) feedback, HARQ process number, NDI (New Data Indicator, new data indication), starting transmission time of the first radio signal, starting multicarrier symbol of the first radio signal, CSI (CHANNEL STATE Information), and SR (Scheduling Request ).

As a sub-embodiment of the above embodiment, the CSI includes at least one of { RI (Rank indication), PMI (Precoding matrix indicator, precoding matrix indication), CQI (Channel quality indicator, channel quality indication), CRI (CSI-REFERENCE SIGNAL Resource Indicator) }.

As a sub-embodiment of the above embodiment, the HARQ process number is a number of a HARQ process corresponding to the data included in the first radio signal.

As a sub-embodiment of the above embodiment, the NDI indicates whether the data included in the first wireless signal is new data or retransmission of old data.

As an embodiment, the reference signal included in the first radio signal includes one or more of { DMRS (DeModulation REFERENCE SIGNAL ), SRS (Sounding REFERENCE SIGNAL, sounding reference signal), PTRS (Phase error TRACKING REFERENCE SIGNALS, phase error tracking reference signal) }.

As an embodiment, the reference signal included in the first wireless signal includes SRS.

As an embodiment, the reference signal included in the first radio signal includes a DMRS.

As one embodiment, the reference signal comprised by the first wireless signal comprises PTRS.

As an embodiment, the first radio signal is transmitted on an uplink random access channel.

As a sub-embodiment of the above embodiment, the uplink Random access channel is a Physical Random access channel (PRACH ACCESS CHANNEL).

As an embodiment, the transmission channel of the first radio signal is an UL-SCH (Uplink SHARED CHANNEL), uplink shared channel.

As an embodiment, the first radio signal is transmitted on an uplink physical layer data channel (i.e. an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the Uplink Physical layer data channel is PUSCH (Physical Uplink SHARED CHANNEL ).

As a sub-embodiment of the above embodiment, the uplink physical layer data channel is a PUSCH (short PUSCH).

As a sub-embodiment of the above embodiment, the uplink physical layer data channel is NR-PUSCH (New Radio PUSCH).

As a sub-embodiment of the above embodiment, the uplink physical layer data channel is NB-PUSCH (Narrow Band PUSCH ).

As an embodiment, the first radio signal is transmitted on an uplink physical layer control channel (i.e. an uplink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the above embodiment, the uplink physical layer control channel is PUCCH (Physical Uplink Control CHannel ).

As a sub-embodiment of the above embodiment, the uplink physical layer control channel is a PUCCH (short PUCCH).

As a sub-embodiment of the above embodiment, the uplink physical layer control channel is an NR-PUCCH (New Radio PUCCH).

As a sub-embodiment of the above embodiment, the uplink physical layer control channel is NB-PUCCH (Narrow Band PUCCH ).

As a sub-embodiment of the above embodiment, the first set of start moments is predefined or configurable.

As a sub-embodiment of the above embodiment, the first set of start moments is predefined.

As a sub-embodiment of the above embodiment, the first set of start moments is configurable.

As a sub-embodiment of the above embodiment, the first set of start moments is semi-statically configured.

As a sub-embodiment of the above embodiment, the first set of start moments is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the first set of starting moments is configured by RRC signaling.

As a sub-embodiment of the above embodiment, the first set of start moments is configured by MAC CE signaling.

As a sub-embodiment of the above embodiment, the first set of start moments is dynamically indicated.

As a sub-embodiment of the above embodiment, the first set of start moments is indicated by DCI signaling.

As a sub-embodiment of the above embodiment, the second set of start moments is predefined or configurable.

As a sub-embodiment of the above embodiment, the second set of start moments is predefined.

As a sub-embodiment of the above embodiment, the second set of start moments is configurable.

As a sub-embodiment of the above embodiment, the second set of start moments is semi-statically configured.

As a sub-embodiment of the above embodiment, the second set of start moments is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the second set of starting instants is configured by RRC signaling.

As a sub-embodiment of the above embodiment, the second set of start moments is configured by MAC CE signaling.

As a sub-embodiment of the above embodiment, the second set of start moments is dynamically indicated.

As a sub-embodiment of the above embodiment, the second set of start moments is indicated by DCI signaling.

As an embodiment, the first set of start moments is jointly determined by a first set of offsets and a reference moment, and the second set of start moments is jointly determined by a second set of offsets and the reference moment; the first starting time set comprises T1 starting times, the first offset set comprises T1 offset values, and T1 is a positive integer; the second set of start moments comprises T2 start moments, the second set of offset comprises T2 offset values, and T2 is a positive integer.

As a sub-embodiment of the above embodiment, the T1 offset values are respectively time offsets of the T1 start times with respect to the reference times, and the T2 offset values are respectively time offsets of the T2 start times with respect to the reference times.

As a sub-embodiment of the above embodiment, none of the T1 offset values is less than 0.

As a sub-embodiment of the above embodiment, the T1 offset values are all greater than 0.

As a sub-embodiment of the above embodiment, one of the T1 offset values is smaller than 0, and one of the T1 offset values is not smaller than 0.

As a sub-embodiment of the above embodiment, none of the T2 offset values is less than 0.

As a sub-embodiment of the above embodiment, the T2 offset values are all greater than 0.

As a sub-embodiment of the above embodiment, one of the T2 offset values is smaller than 0, and one of the T2 offset values is not smaller than 0.

As a sub-embodiment of the above embodiment, a minimum value of the T2 offset values is smaller than a minimum value of the T1 offset values.

As a sub-embodiment of the above embodiment, said T2 is equal to said T1.

As a sub-embodiment of the above embodiment, the T2 and the T1 are not identical.

As a sub-embodiment of the above embodiment, the first set of offsets is predefined or configurable.

As a sub-embodiment of the above embodiment, the first set of offsets is predefined.

As a sub-embodiment of the above embodiment, the first set of offsets is configurable.

As a sub-embodiment of the above embodiment, the first set of offsets is semi-statically configured.

As a sub-embodiment of the above embodiment, the first set of offsets is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the first set of offsets is configured by RRC signaling.

As a sub-embodiment of the above embodiment, the first set of offsets is configured by MAC CE signaling.

As a sub-embodiment of the above embodiment, the first set of offsets is dynamically indicated.

As a sub-embodiment of the above embodiment, the first set of offsets is indicated by DCI signaling.

As a sub-embodiment of the above embodiment, the second set of offsets is predefined or configurable.

As a sub-embodiment of the above embodiment, the second set of offsets is predefined.

As a sub-embodiment of the above embodiment, the second set of offsets is configurable.

As a sub-embodiment of the above embodiment, the second set of offsets is semi-statically configured.

As a sub-embodiment of the above embodiment, the second set of offsets is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the second set of offsets is configured by RRC signaling.

As a sub-embodiment of the above embodiment, the second set of offsets is configured by MAC CE signaling.

As a sub-embodiment of the above embodiment, the second set of offsets is dynamically indicated.

As a sub-embodiment of the above embodiment, the second set of offsets is indicated by DCI signaling.

As a sub-embodiment of the above embodiment, the first offset set includes at least one of 34us,43us,52us,61us and 1 OS (OFDM Symbol) length, and the second offset set includes at least one of 16us,25us,34us,43us,52us,61us and 1 OS length.

As a sub-embodiment of the above embodiment, the reference time is a start time of os#0 in one time unit, the first offset set includes at least one of 34us,43us,52us,61us, and os#1, and the second offset set includes at least one of 16us,25us,34us,43us,52us,61us, and os#1.

As a sub-embodiment of the above embodiment, the reference time instant is predefined or configurable.

As a sub-embodiment of the above embodiment, the reference time instant is predefined.

As a sub-embodiment of the above embodiment, the reference time is configurable.

As a sub-embodiment of the above embodiment, the reference time instant is a time instant in a time unit.

As a sub-embodiment of the above embodiment, the reference time is the start time of a time unit.

As a sub-embodiment of the above embodiment, the reference time is a termination time of one time unit.

As a sub-embodiment of the above embodiment, the reference time instant is a starting time instant of one multicarrier symbol in one time unit.

As a sub-embodiment of the above embodiment, the reference time instant is a starting time instant of a multicarrier symbol.

As a sub-embodiment of the foregoing embodiment, the reference time is a starting time of a time domain resource occupied by the target time-frequency resource set.

As an embodiment, the time unit comprises one Subframe (Subframe).

As an embodiment, the time unit comprises a Slot (Slot).

As an embodiment, the time unit comprises a mini-Slot (mini).

As an embodiment, the time unit comprises a positive integer number of subframes.

As an embodiment, the time unit comprises a positive integer number of time slots.

As an embodiment, the time unit comprises a positive integer number of minislots.

As an embodiment, the time unit comprises a positive integer number of multicarrier symbols.

As an embodiment, the time unit comprises a positive integer number of consecutive multicarrier symbols.

As an embodiment, a relation between time-frequency resources occupied by the target set of time-frequency resources and time-frequency resources occupied by the K time-frequency resource blocks is used to determine the target set of start moments from the first set of start moments and the second set of start moments.

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 an NR 5g, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system network architecture 200. NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved PACKET SYSTEM ) 200 by some other suitable terminology. EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination for the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), TRP (transmit-receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband physical network device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN210 through an S1/NG interface. EPC/5G-CN210 includes MME/AMF/UPF 211, other MME (Mobility MANAGEMENT ENTITY )/AMF (Authentication MANAGEMENT FIELD, authentication management domain)/UPF (User Plane Function ) 214, S-GW (SERVICE GATEWAY, serving Gateway) 212 and P-GW (PACKET DATE Network Gateway, packet data network gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and PS streaming services (PSs).

As an embodiment, the UE201 corresponds to the user equipment in the present application.

As an embodiment, the gNB203 corresponds to the base station in the present application.

As a sub-embodiment, the UE201 supports wireless communication for data transmission over unlicensed spectrum.

As a sub-embodiment, the UE201 supports wireless communication for data transmission over licensed spectrum.

As a sub-embodiment, the gNB203 supports wireless communications for data transmission over unlicensed spectrum.

As a sub-embodiment, the gNB203 supports wireless communications for data transmission over licensed spectrum.

As a sub-embodiment, the UE201 supports MIMO wireless communication.

As a sub-embodiment, the gNB203 supports MIMO wireless communication.

Example 3

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

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane and a control plane, fig. 3 shows the radio protocol architecture for a User Equipment (UE) and a base station device (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, radio link layer control protocol) 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., remote 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 data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the 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 there is no header compression function for the control plane. The control plane also includes an RRC (Radio Resource Control ) sub-layer 306 in layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the gNB and the UE.

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

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

As an embodiment, the first information in the present application is generated in the PHY301.

As an embodiment, the first information in the present application is generated in the RRC sublayer 306.

As an embodiment, the first information in the present application is generated in the MAC sublayer 302.

As an embodiment, the K0 first signaling in the present application is generated in the PHY301.

As an embodiment, the J first access detections in the present application are generated in the PHY301.

As an embodiment, the M second access detections in the present application are generated in the PHY301.

As an embodiment, the first wireless signal in the present application is generated in the PHY301.

As an embodiment, whether the first wireless signal in the present application is transmitted or not is monitored in the target time-frequency resource set in the present application, and is generated in the PHY301.

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, a memory 430, a receive processor 412, a beam processor 471, a transmit processor 415, a transmitter/receiver 416, and an antenna 420.

The user equipment (450) includes a controller/processor 490, a memory 480, a data source 467, a beam processor 441, a transmit processor 455, a receive processor 452, a transmitter/receiver 456, and an antenna 460.

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

A controller/processor 440, upper layer packet arrival, the controller/processor 440 providing packet header compression, encryption, packet segmentation connection and reordering, and multiplexing de-multiplexing between logical and transport channels to implement L2 layer protocols for user and control planes; the upper layer packet may include data or control information such as DL-SCH (Downlink SHARED CHANNEL );

A controller/processor 440 associated with a memory 430 storing program code and data, the memory 430 may be a computer readable medium;

-a controller/processor 440 comprising a scheduling unit for transmitting the demand, the scheduling unit for scheduling air interface resources corresponding to the transmission demand;

-a beam processor 471 determining K0 first signaling;

A transmit processor 415, receiving an output bit stream of the controller/processor 440, implementing various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal generation), etc.;

A transmit processor 415, receiving an output bit stream of the controller/processor 440, implementing various signal transmission processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, spread spectrum, code division multiplexing, precoding, etc.;

A transmitter 416 for converting the baseband signal provided by the transmit processor 415 into a radio frequency signal and transmitting it via an antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream. Each transmitter 416 further processes (e.g., digital-to-analog converts, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downstream signal.

In downlink transmission, processing related to the user equipment (450) may include:

a receiver 456 for converting the radio frequency signal received through the antenna 460 into a baseband signal for provision to the receive processor 452;

a receive processor 452 that performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, physical layer control signaling extraction, and the like;

A receive processor 452 that implements various signal receive processing functions for the L1 layer (i.e., physical layer) including multi-antenna reception, despreading, code division multiplexing, precoding, etc.;

-a beam processor 441 determining K0 first signalling;

A controller/processor 490 receiving the bit stream output by the receive processor 452, providing header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing de-multiplexing between logical and transport channels to implement L2 layer protocols for the user plane and control plane;

the controller/processor 490 is associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium.

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

a receiver 416 that receives the radio frequency signals through its respective antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to the receive processor 412;

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

A receive processor 412 that performs various signal reception 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 a memory 430 storing program code 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 data packets from the UE 450; upper layer packets from the controller/processor 440 may be provided to the core network;

-a beam processor 471 determining to receive a first wireless signal in a target set of time-frequency resources;

In UL (Uplink), the processing related to the user equipment (450) includes:

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

A transmitter 456 that transmits radio frequency signals through its respective antenna 460, converts baseband signals to radio frequency signals, and provides radio frequency signals 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, physical layer signaling generation, and the like;

A transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, spreading (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 the radio resource allocations of the gNB410, implementing L2 layer functions for the user and control planes;

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

a beam processor 441 determining to transmit a first radio signal in a target set of time-frequency resources;

As an embodiment, the UE450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the UE450 apparatus at least to: receiving K0 first signaling, wherein the K0 first signaling is used for determining K time-frequency resource blocks; transmitting a first wireless signal in a target time-frequency resource set; wherein, the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are all orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, the UE450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving K0 first signaling, wherein the K0 first signaling is used for determining K time-frequency resource blocks; transmitting a first wireless signal in a target time-frequency resource set; wherein, the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are all orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, the gNB410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The gNB410 means at least: transmitting K0 first signaling, the K0 first signaling being used to determine K time-frequency resource blocks; receiving a first wireless signal in a target time-frequency resource set; wherein, the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are all orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, the gNB410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting K0 first signaling, the K0 first signaling being used to determine K time-frequency resource blocks; receiving a first wireless signal in a target time-frequency resource set; wherein, the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are all orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

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

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

As one embodiment, at least the first two of the receiver 456, the receiving processor 452 and the controller/processor 490 are used for receiving said first information in the present application.

As one 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 in the present application.

As one embodiment, at least the first two of the receiver 456, the receive processor 452 and the controller/processor 490 are used to receive the K0 first signaling in the present application.

As one embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the K0 first signaling in the present application.

As one embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to perform the J first access detections in the present application.

As one 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 of the present application in the set of target time-frequency resources of the present application.

As one embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are configured to receive the first wireless signal of the present application in the set of target time-frequency resources of the present application.

As one embodiment, at least the first two of the receiver 416, the receive processor 412 and the controller/processor 440 are used to perform the M second access detections in the present application on the M subbands in the present application, respectively.

As one embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to monitor the target set of time-frequency resources in the present application for whether the first wireless signal in the present application is transmitted.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission, as shown in fig. 5. In fig. 5, the base station N01 is a serving cell maintenance base station of the user equipment U02. In fig. 5, block F1 is optional.

For N01, first information is transmitted in step S10; performing M second access detections on M subbands, respectively, in step S11; transmitting K0 first signaling in step S12; monitoring whether the first wireless signal is transmitted in the target time-frequency resource set in step S13; a first wireless signal is received in a target set of time-frequency resources in step S14.

For U02, receiving first information in step S20; receiving K0 first signaling in step S21; in step S22, a first time window is selected from the N time windows; performing J first access detections in step S23; the first wireless signal is transmitted in the target set of time-frequency resources in step S24.

In embodiment 5, the K0 first signaling is used by the U02 to determine K time-frequency resource blocks, where frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relationship between the target time-frequency resource set and the K time-frequency resource blocks is used by the U02 to determine the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer. The J first access detections are used by the U02 to determine that the first wireless signal is sent in the target set of time-frequency resources, where J is a positive integer; the J is equal to 1, the J first access detections being performed on a first frequency band comprising frequency domain resources occupied by the target set of time-frequency resources; or the J is greater than 1, the J first access detections are respectively performed on J sub-bands, the target time-frequency resource set includes J target resource subsets, the J sub-bands respectively include frequency domain resources occupied by the J target resource subsets respectively, the J first access detections are used by the U02 to determine that the first wireless signal is transmitted in only J1 target resource subsets in the J target resource subsets, and the time-frequency resources occupied by the J1 target resource subsets include time-frequency resources occupied by the first wireless signal, and the J1 is a positive integer not greater than the J. The time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1. The first information is used by the U02 to determine the set of target time-frequency resources. The M second access detections are used by the N01 to determine the K time-frequency resource blocks, where K subbands in the M subbands respectively include frequency domain resources occupied by the K time-frequency resource blocks, and M is a positive integer greater than 1 and not less than K.

As an embodiment, the K0 is equal to 1, and the K0 first signaling is transmitted on one of the K subbands.

As an embodiment, the K0 is equal to 1, and the K0 first signaling is transmitted on one of the M subbands.

As an embodiment, the K0 is equal to the K, and the K0 first signaling is transmitted on the K sub-bands, respectively.

As an embodiment, the K0 is greater than the K, the K0 first signaling is transmitted on K0 subbands of the M subbands, respectively, the K0 is not greater than the M.

As an embodiment, the K0 is equal to the M, and the K0 first signaling is transmitted on the M sub-bands, respectively.

As an embodiment, the ue selects a starting time from the set of target starting times as a starting transmission time of the first wireless signal, where the selecting the starting transmission time of the first wireless signal from the set of target starting times is a problem related to implementation of the ue (Implementation Issue).

As an embodiment, the user equipment selects a starting time from the set of target starting times (randomly) randomly as the starting transmission time of the first wireless signal.

As an embodiment, the ue determines a starting transmission time of the first radio signal from the target starting time set based on the results of the J first access detections.

As an example, J is equal to 1.

As an embodiment, J is greater than 1.

As one embodiment, a given access detection performed on a given frequency band means: the given access detection is used to determine whether the given frequency band is Idle.

As one embodiment, a given access detection performed on a given frequency band means: the given access detection is used to determine whether a wireless signal can be transmitted on the given frequency band.

As an embodiment, the duration of the first wireless signal in the time domain does not exceed the maximum channel occupation time.

As an embodiment, the duration of the target set of time-frequency resources in the time domain does not exceed the maximum channel occupation time.

As an embodiment, the time offset of the ending time and the starting time of the target time-frequency resource set does not exceed the maximum channel occupation time.

As an embodiment, the duration of any one of the J1 target resource subsets in the time domain does not exceed the maximum channel occupation time.

As an embodiment, the time offset of the ending time and the starting time of any one of the J1 target resource subsets does not exceed the maximum channel occupation time.

As an embodiment, the J is equal to 1, and the J first access detections are performed on a first frequency band, where the first frequency band includes frequency domain resources occupied by the target set of time-frequency resources.

As a sub-embodiment of the above embodiment, the J first access detections are used by the U02 to determine whether the first frequency band is Idle.

As a sub-embodiment of the above embodiment, the J first access detections are used by the U02 to determine whether a wireless signal can be sent on the first frequency band.

As a sub-embodiment of the above embodiment, the first frequency band is predefined or configurable.

As a sub-embodiment of the above embodiment, the first frequency band is predefined.

As a sub-embodiment of the above embodiment, the first frequency band is configurable.

As a sub-embodiment of the above embodiment, the frequency domain resources comprised by the first frequency band are contiguous.

As a sub-embodiment of the above embodiment, the first frequency band includes a positive integer number of sub-carriers.

As a sub-embodiment of the above embodiment, the first frequency band includes a positive integer number of consecutive sub-carriers.

As a sub-embodiment of the above embodiment, the bandwidth of the first frequency band is a positive integer multiple of 20MHz.

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

As a sub-embodiment of the above embodiment, the bandwidth of the first frequency band is 1GHz.

As a sub-embodiment of the above embodiment, the bandwidth of the first frequency band is a positive integer multiple of 1 GHz.

As a sub-embodiment of the above embodiment, the first frequency band includes one Carrier (Carrier).

As a sub-embodiment of the above embodiment, the first frequency band includes a BWP (Bandwidth Part).

As a sub-embodiment of the above embodiment, the first frequency band includes a positive integer number of carriers.

As a sub-embodiment of the above embodiment, the first frequency band includes a positive integer number of BWP.

As a sub-embodiment of the above embodiment, the first frequency band includes a positive integer number of sub-bands (sub).

As an embodiment, the J is greater than 1, the J first access detections are performed on J sub-bands, respectively, the set of target time-frequency resources includes J target resource subsets, the J sub-bands include frequency domain resources occupied by the J target resource subsets, respectively, the J first access detections are used by the U02 to determine that the first wireless signal is transmitted in only J1 target resource subsets of the J target resource subsets, the time-frequency resources occupied by the J1 target resource subsets include time-frequency resources occupied by the first wireless signal, and the J1 is a positive integer not greater than the J.

As a sub-embodiment of the above embodiment, the J first access detections are used by the U02 to determine whether the J subbands are Idle (Idle), respectively.

As a sub-embodiment of the above embodiment, any one of the J first access detections is used by the U02 to determine whether a wireless signal can be sent on a corresponding one of the J sub-bands.

As a sub-embodiment of the foregoing embodiment, J1 sub-bands of the J sub-bands respectively include frequency domain resources occupied by the J1 target resource subsets respectively, J1 first access detections of the J first access detections are performed on the J1 sub-bands respectively, and any one of the J1 first access detections is used by the U02 to determine that a wireless signal can be sent on a corresponding one of the J sub-bands.

As a sub-embodiment of the above embodiment, the J1 is equal to the J.

As a sub-embodiment of the above embodiment, the J1 is smaller than the J.

As a sub-embodiment of the above embodiment, the J1 is smaller than the J, J1 sub-bands of the J sub-bands respectively include frequency domain resources occupied by the J1 target resource subsets respectively, J1 first access detections of the J first access detections are respectively performed on the J1 sub-bands, any one of the J1 first access detections is used by the U02 to determine that a wireless signal can be sent on a corresponding one of the J sub-bands, and a result of any one of the J first access detections other than the J1 first access detection is that no wireless signal can be sent on the corresponding one of the J sub-bands.

As a sub-embodiment of the above embodiment, any two sub-bands of the J sub-bands are orthogonal.

As a sub-embodiment of the above embodiment, the J sub-bands are predefined or configurable.

As a sub-embodiment of the above embodiment, the J sub-bands are predefined.

As a sub-embodiment of the above embodiment, the J sub-bands are configurable.

As a sub-embodiment of the above embodiment, the frequency domain resource included in any one of the J sub-bands is continuous.

As a sub-embodiment of the above embodiment, any one of the J sub-bands includes a positive integer number of sub-carriers.

As a sub-embodiment of the above embodiment, any one of the J sub-bands includes a positive integer number of consecutive sub-carriers.

As a sub-embodiment of the above embodiment, the bandwidth of any one of the J sub-bands is a positive integer multiple of 20 MHz.

As a sub-embodiment of the above embodiment, the bandwidth of any one of the J sub-bands is 20MHz.

As a sub-embodiment of the above embodiment, the bandwidth of any one of the J sub-bands is 1GHz.

As a sub-embodiment of the above embodiment, the bandwidth of any one of the J sub-bands is a positive integer multiple of 1 GHz.

As a sub-embodiment of the above embodiment, the J sub-bands belong to the same Carrier (Carrier).

As a sub-embodiment of the above embodiment, the J sub-bands belong to the same BWP (Bandwidth Part).

As a sub-embodiment of the above embodiment, the J sub-bands respectively belong to M carriers.

As a sub-embodiment of the above embodiment, the J sub-bands respectively belong to M BWP.

As a sub-embodiment of the above embodiment, the J sub-bands include M sub-bands (subbands), respectively.

As an embodiment, if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are partially overlapped, and the target time-frequency resource set includes time-frequency resources orthogonal to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time instant set is the first start time instant set.

As an embodiment, if the time-frequency resources occupied by the target time-frequency resource set belong to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

As an embodiment, if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are partially overlapped, and the target time-frequency resource set includes time-frequency resources orthogonal to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set; if the time-frequency resource occupied by the target time-frequency resource set belongs to the time-frequency resource occupied by the K time-frequency resource blocks, the target starting moment set is the first starting moment set; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

As an embodiment, any two time windows of the N time windows are orthogonal (non-overlapping) to each other in the time domain.

As an embodiment, any two adjacent time windows of the N time windows are discontinuous in the time domain.

As an embodiment, two adjacent time windows of the N time windows are consecutive in the time domain.

As an embodiment, any two time windows of the N time windows occupy the same length of time resource.

As an embodiment, two time windows of the N time windows occupy time resources of different lengths.

As an embodiment, any one of the N time windows comprises one continuous time period.

As an embodiment, any of the N time windows comprises a positive integer number of consecutive time slots (slots).

As an embodiment, any of the N time windows includes a positive integer number of consecutive subframes (subframes).

As an embodiment, any one of the N time windows comprises a positive integer number of consecutive small slots (mini-slots).

As an embodiment, any one of the N time windows comprises one time slot.

As an embodiment, any one of the N time windows includes one subframe.

As an embodiment, any one of the N time windows comprises one minislot.

As an embodiment, any one of the N time windows consists of a positive integer number of consecutive multicarrier symbols.

As an embodiment, any one of the N time windows comprises one multicarrier symbol.

As an embodiment, the first time window is determined to be one of the user equipment implementation-related problems from the N time windows.

As one embodiment, the first wireless signal carries a first bit block comprising a positive integer number of bits; the arrival time of the first block of bits is used to determine the first time window from the M time windows.

As a sub-embodiment of the above embodiment, the start time of the first time window is later than the arrival time of the first bit block.

As an embodiment, the first time window is the earliest time window of the M time windows having a start time later than an arrival time of the first bit block.

As a sub-embodiment of the above embodiment, the first bit block includes data.

As a sub-embodiment of the above embodiment, the arrival time of the first bit block refers to the time when the first bit block arrives at the physical layer.

As a sub-embodiment of the above embodiment, the first time window is the earliest time window of the M time windows having a start time later than an arrival time of the first bit block and which can be used for transmitting a wireless signal.

As a sub-embodiment of the above embodiment, the J first access detections are used by the U02 to determine that the first wireless signal can be sent in the first time window.

As an embodiment, the first radio signal is one of K1 radio signals, each of the K1 radio signals carrying a first bit block, the first bit block comprising a positive integer number of bits, the K1 being a positive integer.

As a sub-embodiment of the above embodiment, the K1 is equal to 1.

As a sub-embodiment of the above embodiment, the K1 is greater than 1.

As a sub-embodiment of the above embodiment, each of the K1 radio signals includes a transmission of the first bit block.

As a sub-embodiment of the foregoing embodiment, the K1 is greater than 1, and time-frequency resources occupied by any two radio signals in the K1 radio signals are orthogonal.

As a sub-embodiment of the foregoing embodiment, the K1 is greater than 1, and the time-frequency resource occupied by the target time-frequency resource set and the time-frequency resource occupied by any one of the K1 wireless signals except the first wireless signal are orthogonal.

As a sub-embodiment of the foregoing embodiment, the K1 is greater than 1, and the first time window includes time domain resources occupied by the K1 wireless signals.

As a sub-embodiment of the foregoing embodiment, the K1 is greater than 1, and the first time window includes only time domain resources occupied by the first radio signal of the K1 radio signals.

As a sub-embodiment of the above embodiment, the first radio signal is one of the K1 radio signals having the earliest initial transmission time.

As a sub-embodiment of the foregoing embodiment, the K1 is greater than 1, and the first radio signal is one radio signal whose initial transmission timing is not earliest among the K1 radio signals.

As a sub-embodiment of the above embodiment, the first wireless signal is any one of the K1 wireless signals.

As a sub-embodiment of the above embodiment, the K1 is not greater than K2, the K2 is a positive integer, and the K2 is indicated by higher layer signaling.

As a sub-embodiment of the above embodiment, the K1 is not greater than K2, the K2 is a positive integer, and the K2 is indicated by RRC signaling.

As a sub-embodiment of the above embodiment, the K1 is not greater than K2, the K2 is a positive integer, the K2 is indicated by the repK field in ConfiguredGrantConfig IE in an RRC signaling, the ConfiguredGrantConfig IE, and the repK field is specifically defined in 3gpp ts38.331, section 6.3.2.

As an embodiment, the first radio signal comprises K1 sub-signals, the K1 sub-signals all carrying a first bit block, the first bit block comprising a positive integer number of bits, the K1 being a positive integer.

As a sub-embodiment of the above embodiment, the K1 is equal to 1.

As a sub-embodiment of the above embodiment, the K1 is greater than 1.

As a sub-embodiment of the above embodiment, each of the K1 sub-signals includes one transmission of the first bit block.

As a sub-embodiment of the foregoing embodiment, the K1 is greater than 1, and time-frequency resources occupied by any two sub-signals in the K1 sub-signals are all orthogonal.

As a sub-embodiment of the foregoing embodiment, the time-frequency resource occupied by the target time-frequency resource set includes time-frequency resources occupied by the K1 sub-signals.

As an embodiment, the first information is used to indicate the target set of time-frequency resources.

As a sub-embodiment of the above embodiment, the first information explicitly indicates the target time-frequency resource set.

As a sub-embodiment of the foregoing embodiment, the first information implicitly indicates the target time-frequency resource set.

As a sub-embodiment of the above embodiment, the first information indicates a time domain resource occupied by the target time-frequency resource set and a frequency domain resource occupied.

As a sub-embodiment of the foregoing embodiment, the time domain resource occupied by the target time-frequency resource set belongs to a first time window, where the first time window is one time window of N time windows, and N is a positive integer greater than 1; the first information indicates time domain resources and occupied frequency domain resources occupied by the N time windows and the target time-frequency resource set in the first time window.

As a sub-embodiment of the above embodiment, the first information is semi-statically configured.

As a sub-embodiment of the above embodiment, the first information is carried by higher layer signaling.

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

As a sub-embodiment of the above embodiment, the first information is carried by MAC CE signaling.

As a sub-embodiment of the above embodiment, the first information includes one or more IEs (Information Element, information units) in one RRC signaling.

As a sub-embodiment of the above embodiment, the first information includes all or a part of an IE in an RRC signaling.

As a sub-embodiment of the above embodiment, the first information includes a partial field of an IE in an RRC signaling.

As a sub-embodiment of the above embodiment, the first information includes a plurality of IEs in one RRC signaling.

As a sub-embodiment of the above embodiment, the first information includes part or all of the field ConfiguredGrantConfig IE in an RRC signaling, and the specific definition of ConfiguredGrantConfig IE is described in section 6.3.2 in 3gpp ts 38.331.

As a sub-embodiment of the above embodiment, the first information includes periodicity field, timeDomainOffset field, frequencyDomainAllocation field and timeDomainAllocation field in ConfiguredGrantConfig IE in one RRC signaling, and specific definitions of the ConfiguredGrantConfig IE field, the periodicity field, the timeDomainOffset field, the frequencyDomainAllocation field and the timeDomainAllocation field are described in section 6.3.2 in 3gpp ts 38.331.

As an embodiment, the first information and the second information are used together by the U02 to determine the target set of time-frequency resources.

As a sub-embodiment of the foregoing embodiment, the time domain resource occupied by the target time-frequency resource set belongs to a first time window, where the first time window is one time window of N time windows, and N is a positive integer greater than 1; the second information indicates the N time windows, and the first information indicates time domain resources and occupied frequency domain resources occupied by the target time-frequency resource set in the first time window.

As a sub-embodiment of the foregoing embodiment, the time domain resource occupied by the target time-frequency resource set belongs to a first time window, where the first time window is one time window of N time windows, and N is a positive integer greater than 1; the N time windows are a set of periodically occurring time windows, the second information indicates a period of the N time windows, and the first information indicates a time domain resource and a frequency domain resource occupied by an earliest one of the N time windows and the target time-frequency resource set in the first time window.

As a sub-embodiment of the above embodiment, the first information is dynamically configured.

As a sub-embodiment of the above embodiment, the first information is carried by physical layer signaling.

As a sub-embodiment of the above embodiment, the first information is carried by DCI signaling.

As a sub-embodiment of the above embodiment, the first information is carried by DCI signaling of an UpLink Grant (UpLink Grant).

As a sub-embodiment of the above embodiment, the CRC (Cyclic Redundancy Check ) bit sequence of the DCI signaling carrying the first information is scrambled by CS (Configured Scheduling ) -RNTI (Radio Network Temporary Identifier, radio network tentative identity).

As a sub-embodiment of the above embodiment, the DCI signaling carrying the first information is DCI format 0_0 or DCI format 0_1, and the specific definitions of DCI format 0_0 and DCI format 0_1 are described in section 7.3.1.1 of 3gpp ts 38.212.

As a sub-embodiment of the above embodiment, the DCI signaling carrying the first information is DCI format0_0, and the specific definition of DCI format0_0 is described in section 7.3.1.1 in 3gpp ts 38.212.

As a sub-embodiment of the above embodiment, the DCI signaling carrying the first information is DCI format0_1, and the specific definition of DCI format0_1 is described in section 7.3.1.1 of 3gpp ts 38.212.

As a sub-embodiment of the above embodiment, the first information includes Frequency domain resource assignment fields and Time domain resource assignment fields in DCI signaling, and specific definitions of the Frequency domain resource assignment fields and Time domain resource assignment fields are described in section 6.1.2 of 3gpp ts 38.214.

As a sub-embodiment of the above embodiment, the second information is semi-statically configured.

As a sub-embodiment of the above embodiment, the second information is carried by higher layer signaling.

As a sub-embodiment of the above embodiment, the second information is carried by RRC signaling.

As a sub-embodiment of the above embodiment, the second information is carried by MAC CE signaling.

As a sub-embodiment of the above embodiment, the second information includes one or more IEs in one RRC signaling.

As a sub-embodiment of the above embodiment, the second information includes all or a part of an IE in an RRC signaling.

As a sub-embodiment of the above embodiment, the second information includes a partial field of an IE in an RRC signaling.

As a sub-embodiment of the above embodiment, the second information includes a plurality of IEs in one RRC signaling.

As a sub-embodiment of the above embodiment, the second information includes periodicity field in ConfiguredGrantConfig IE, and specific definitions of the ConfiguredGrantConfig IE and periodicity fields are described in section 6.3.2 in 3gpp ts 38.331.

As an embodiment, the first information is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is PDCCH.

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is a sppdcch.

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is an NR-PDCCH.

As a sub-embodiment of the above embodiment, the downlink physical layer control channel is NB-PDCCH.

As an embodiment, the first information is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is PDSCH (Physical Downlink SHARED CHANNEL ).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is a PDSCH (short PDSCH).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NR-PDSCH (New Radio PDSCH).

As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NB-PDSCH (Narrow Band PDSCH ).

As one embodiment, whether the first wireless signal is transmitted is monitored in each of the N time windows.

As one embodiment, the monitoring refers to blind detection, that is, receiving a signal and performing a decoding operation, and if it is determined that decoding is correct according to CRC (Cyclic Redundancy Check ) bits, determining that a given wireless signal is transmitted within a given time-frequency resource; otherwise, judging that the given wireless signal is not transmitted in the given time-frequency resource.

As a sub-embodiment of the above embodiment, the given time-frequency resource is a time-frequency resource occupied by the target time-frequency resource set, and the given radio signal is the first radio signal.

As an embodiment, the monitoring refers to coherent detection, that is, coherent reception is performed by using an RS sequence of DMRS of a physical layer channel where a given wireless signal is located, and energy of a signal obtained after the coherent reception is measured. If the energy of the signal obtained after the coherent reception is greater than a first given threshold, judging that the given wireless signal is transmitted in a given time-frequency resource; otherwise, judging that the given wireless signal is not transmitted in the given time-frequency resource.

As an embodiment, the monitoring refers to energy detection, i.e. sensing (Sense) the energy of the wireless signal and averaging over time to obtain the received energy. If the received energy is greater than a second given threshold, judging that the given wireless signal is transmitted in the given time-frequency resource; otherwise, judging that the given wireless signal is not transmitted in the given time-frequency resource.

As an embodiment, the monitoring refers to coherent detection, i.e. coherent reception with a sequence of given wireless signals, and measuring the energy of the signals obtained after the coherent reception. If the energy of the signal obtained after the coherent reception is greater than a third given threshold, judging that the given wireless signal is transmitted in given time-frequency resources; otherwise, judging that the given wireless signal is not transmitted in the given time-frequency resource.

As one embodiment, a given node determines whether a given wireless signal is transmitted in a given time-frequency resource based on the energy of a received signal on the given time-frequency resource.

As a sub-embodiment of the above embodiment, the given node is the base station apparatus.

As a sub-embodiment of the above embodiment, if the energy of the received signal on the given time-frequency resource is low, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource.

As a sub-embodiment of the above embodiment, if the energy of the received signal on the given time-frequency resource is below a reference energy threshold, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource; the reference energy threshold is self-configured by the given node.

As one embodiment, a given node determines whether a given wireless signal is transmitted in a given time-frequency resource based on the power of a received signal on the given time-frequency resource.

As a sub-embodiment of the above embodiment, if the power of the received signal on the given time-frequency resource is low, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource.

As a sub-embodiment of the above embodiment, if the power of the received signal on the given time-frequency resource is lower than a reference power threshold, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource; the reference power threshold is self-configured by the given node.

As one embodiment, a given node determines whether a given wireless signal is transmitted in a given time-frequency resource based on a correlation of a received signal on the given time-frequency resource and the given wireless signal.

As a sub-embodiment of the above embodiment, if the correlation between the received signal on the given time-frequency resource and the given wireless signal is low, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource.

As a sub-embodiment of the above embodiment, if the correlation between the received signal on the given time-frequency resource and the given wireless signal is lower than a reference correlation threshold, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource; the reference correlation threshold is self-configured by the given node.

As one embodiment, a given node estimates a channel by measuring a received signal in a given time-frequency resource according to a configuration parameter of a given wireless signal, and determines whether the given wireless signal is transmitted in the given time-frequency resource according to the estimated channel.

As a sub-embodiment of the above embodiment, if the estimated energy of the channel is low, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource.

As a sub-embodiment of the above embodiment, if the estimated energy of the channel is below a reference channel energy threshold, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource; the reference channel energy threshold is self-configured by the given node.

As a sub-embodiment of the above embodiment, if the estimated power of the channel is low, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource.

As a sub-embodiment of the above embodiment, if the estimated power of the channel is lower than a reference channel power threshold, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource; the reference channel power threshold is self-configured by the given node.

As a sub-embodiment of the above embodiment, if the estimated characteristic of the channel does not conform to the characteristic considered to be by the given node, the given node considers that the given wireless signal is not transmitted in the given time-frequency resource, otherwise, the given node considers that the given wireless signal is transmitted in the given time-frequency resource.

As one embodiment, the M is greater than the K.

As one embodiment, the M is equal to the K.

As an embodiment, the M subbands belong to the same Carrier (Carrier).

As an embodiment, the M subbands belong to the same BWP (Bandwidth Part).

As an embodiment, the M subbands respectively belong to M carriers.

As an embodiment, the M subbands respectively belong to M BWP.

As an embodiment, the M subbands include M subbands (subbands), respectively.

As an embodiment, the frequency domain resources occupied by any two sub-bands in the M sub-bands are orthogonal.

As an embodiment, the M subbands are predefined or configurable.

As an embodiment, the M subbands are predefined.

As an embodiment, the M subbands are configurable.

As an embodiment, the frequency domain resources comprised by any of the M sub-bands are contiguous.

As an embodiment, any of the M subbands includes a positive integer number of subcarriers.

As an embodiment, any of the M subbands comprises a positive integer number of consecutive subcarriers.

As an embodiment, the bandwidth of any of the M subbands is a positive integer multiple of 20 MHz.

As an embodiment, the bandwidth of any of the M subbands is 20MHz.

As an embodiment, the bandwidth of any of the M subbands is 1GHz.

As an embodiment, the bandwidth of any of the M subbands is a positive integer multiple of 1 GHz.

As an embodiment, the M second access detections are used by the N01 to determine whether the M subbands are Idle (Idle), respectively.

As one embodiment, the M second access detections are used by the N01 to determine that only the K subbands of the M subbands are Idle.

As one embodiment, the M second access detections are used by the N01 to determine that wireless signals can be sent on only the K subbands in the M subbands.

As an embodiment, the M second access detections are used by the N01 to determine that only the K subbands of the M subbands may transmit a radio signal, and the time-frequency resources on which the K subbands may transmit a radio signal include time-frequency resources occupied by the K time-frequency resource blocks.

As an embodiment, K second access detections out of the M second access detections are performed on the K subbands, any one of the K second access detections is used by the N01 to determine that one of the corresponding K subbands is idle, and any one of the M second access detections other than the K second access detections is used by the N01 to determine that one of the corresponding M subbands is busy (not idle).

As one embodiment, K second access detections of the M second access detections are performed on the K subbands, any one of the K second access detections being used by the N01 to determine that a wireless signal can be sent on a corresponding one of the K subbands, any one of the M second access detections other than the K second access detection being used by the N01 to determine that a wireless signal cannot be sent on a corresponding one of the M subbands; the time-frequency resources on the K sub-frequency bands, which can transmit wireless signals, comprise time-frequency resources occupied by the K time-frequency resource blocks.

Example 6

Embodiment 6 illustrates a schematic diagram of the relationship between K0 first signaling and K time-frequency resource blocks, as shown in fig. 6.

In embodiment 6, the K0 is equal to 1, and the K0 first signaling is used to determine the K time-frequency resource blocks.

As an embodiment, the K0 is equal to 1, and the K0 first signaling is used to indicate the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling explicitly indicates the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling implicitly indicates the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates time-frequency resources occupied by the K time-frequency resource blocks respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates the K subbands from the M subbands, where the K subbands respectively include frequency domain resources respectively occupied by the K time-frequency resource blocks; the K0 first signaling further indicates time domain resources occupied by the K time-frequency resource blocks.

As an embodiment, the K0 is equal to 1, and the K0 first signaling and the K second signaling are used together to determine the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates frequency domain resources occupied by the K time-frequency resource blocks, and the K second signaling indicates time domain resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates the K subbands from the M subbands, where the K subbands respectively include frequency domain resources respectively occupied by the K time-frequency resource blocks; and the K second signaling respectively indicates the time domain resources respectively occupied by the K time-frequency resource blocks.

As a sub-embodiment of the above embodiment, the K second signaling is dynamically configured.

As a sub-embodiment of the above embodiment, the K second signaling are physical layer signaling.

As a sub-embodiment of the above embodiment, the K second signaling is transmitted on a frequency band deployed on an unlicensed spectrum.

As a sub-embodiment of the above embodiment, the K second signaling are transmitted on a frequency band deployed on the licensed spectrum.

As a sub-embodiment of the above embodiment, the K second signaling is DCI.

As a sub-embodiment of the above embodiment, the K second signaling is carried by a downlink physical layer control channel.

As a sub-embodiment of the above embodiment, the K second signaling are terminal group specific and the user equipment is one terminal of the terminal group.

As a sub-embodiment of the above embodiment, the K second signaling are cell-common.

As a sub-embodiment of the above embodiment, the K second signaling is also used to indicate a slot format.

As a sub-embodiment of the above embodiment, the K second signaling are used to indicate respectively obtained COTs on the K sub-bands by the base station.

As a sub-embodiment of the above embodiment, the K second signaling are used to indicate part or all of the time domain resources respectively belonging to the respectively obtained COTs of the base station on the K sub-bands.

As a sub-embodiment of the above embodiment, the K second signaling are used to indicate the partial time domain resources respectively belonging to the respectively obtained COTs of the base station on the K sub-bands.

As a sub-embodiment of the above embodiment, the K second signaling are used to indicate all time domain resources respectively belonging to the respectively obtained COTs of the base station on the K sub-bands.

As a sub-embodiment of the above embodiment, the signaling identifications of the K second signaling are second identifications.

As a sub-embodiment of the above embodiment, the K second signaling are DCIs identified by a second identification.

As a sub-embodiment of the above embodiment, the second identifier is used to generate RS sequences of DMRS (DeModulation REFERENCE SIGNALS ) corresponding to the K second signaling.

As a sub-embodiment of the above embodiment, the CRC bit sequences of the K second signaling are scrambled by a second identity.

As an embodiment, the K0 is equal to 1, and the K0 first signaling and third signaling are used together to determine the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates frequency domain resources occupied by the K time-frequency resource blocks, and the third signaling indicates time domain resources occupied by the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates the K subbands from the M subbands, where the K subbands respectively include frequency domain resources respectively occupied by the K time-frequency resource blocks; the third signaling indicates time domain resources occupied by the K time-frequency resource blocks.

As a sub-embodiment of the above embodiment, the third signaling is dynamically configured.

As a sub-embodiment of the above embodiment, the third signaling is physical layer signaling.

As a sub-embodiment of the above embodiment, the third signaling is transmitted over a frequency band deployed in the unlicensed spectrum.

As a sub-embodiment of the above embodiment, the third signaling is transmitted over a frequency band deployed in the licensed spectrum.

As a sub-embodiment of the above embodiment, the third signaling is DCI.

As a sub-embodiment of the above embodiment, the third signaling is carried by a downlink physical layer control channel.

As a sub-embodiment of the above embodiment, the third signaling is terminal group specific and the user equipment is one terminal of the terminal group.

As a sub-embodiment of the above embodiment, the third signaling is cell-common.

As a sub-embodiment of the above embodiment, the third signaling is also used to indicate a slot format.

As a sub-embodiment of the above embodiment, the third signaling is used to indicate the COT that the base station has obtained on the K sub-bands.

As a sub-embodiment of the above embodiment, the third signaling is used to indicate part or all of the time domain resources belonging to the COT that the base station has obtained on the K subbands.

As a sub-embodiment of the above embodiment, the third signaling is used to indicate a part of the time domain resources belonging to the COT that the base station has obtained on the K sub-bands.

As a sub-embodiment of the above embodiment, the third signaling is used to indicate all time domain resources belonging to the COT that the base station has obtained on the K subbands.

As a sub-embodiment of the above embodiment, the signaling identification of the third signaling is a second identification.

As a sub-embodiment of the above embodiment, the third signaling is DCI identified by the second identification.

As a sub-embodiment of the above embodiment, the second identifier is used to generate an RS sequence of the DMRS corresponding to the third signaling.

As a sub-embodiment of the above embodiment, the CRC bit sequence of the third signaling is scrambled by the second identification.

As an embodiment, the second identity is a CC-RNTI.

As an embodiment, the second identity is an SFI-RNTI.

As an embodiment, the second identity is terminal group specific and the user equipment is one terminal of the terminal group.

As an embodiment, the second identity is cell-common.

Example 7

Embodiment 7 illustrates another schematic diagram of the relationship between K0 first signaling and K time-frequency resource blocks, as shown in fig. 7.

In embodiment 7, the K0 is equal to the K, and the K0 first signaling is used to determine the K time-frequency resource blocks.

As an embodiment, the K0 is equal to the K, and the K0 first signaling is used to indicate time-frequency resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling explicitly indicates time-frequency resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling implicitly indicates time-frequency resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling indicates the K sub-bands respectively, and the K sub-bands include frequency domain resources occupied by the K time-frequency resource blocks respectively; the K0 first signaling also indicates time domain resources respectively occupied by the K time-frequency resource blocks.

As an embodiment, the K0 is equal to the K, the K0 first signaling is used to indicate time domain resources occupied by the K time-frequency resource blocks, and the frequency domain resources occupied by the K0 first signaling are used to determine the frequency domain resources occupied by the K time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling explicitly indicates time domain resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling implicitly indicates time domain resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling implicitly indicates frequency domain resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the above embodiment, the K0 first signaling is sent on the K sub-frequency bands, respectively, where the K sub-frequency bands include frequency domain resources occupied by the K time-frequency resource blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K0 first signaling is sent on the K sub-frequency bands, and the frequency domain resources occupied by the K time-frequency resource blocks are respectively composed of the frequency domain resources respectively included in the K sub-frequency bands.

As a sub-embodiment of the above embodiment, the given signaling is any one of the K0 first signaling, the given signaling is used to indicate a time domain resource occupied by a given time-frequency resource block, the given time-frequency resource block is one of the K time-frequency resource blocks, and a frequency domain resource occupied by the given signaling is used to determine a frequency domain resource occupied by the given time-frequency resource block.

As a sub-embodiment of the above embodiment, the given signaling is any one of the K0 first signaling, the given signaling is used to indicate a time domain resource occupied by a given time-frequency resource block, the given time-frequency resource block is one of the K time-frequency resource blocks, and the given subband is one subband including a frequency domain resource occupied by the given signaling among the K subbands, and the given subband includes the frequency domain resource occupied by the given time-frequency resource block.

As a sub-embodiment of the above embodiment, the given signaling is any one of the K0 first signaling, the given signaling is used to indicate a time domain resource occupied by a given time-frequency resource block, the given time-frequency resource block is one of the K time-frequency resource blocks, the given subband is one subband including a frequency domain resource occupied by the given signaling among the K subbands, and the frequency domain resource occupied by the given time-frequency resource block is composed of the frequency domain resource included by the given subband.

Example 8

Examples 8A to 8C each illustrate a schematic diagram for determining a set of target start moments, as shown in fig. 8.

In embodiment 8A, if the time-frequency resources occupied by the target time-frequency resource set in the present application and the time-frequency resources occupied by the K time-frequency resource blocks in the present application are partially overlapped, and the target time-frequency resource set includes time-frequency resources orthogonal to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set in the present application.

In embodiment 8B, if the time-frequency resources occupied by the target time-frequency resource set belong to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set.

In embodiment 8C, if the time-frequency resources occupied by the target set of time-frequency resources and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target set of start moments is the second set of start moments.

As an embodiment, if the time-frequency resources occupied by the target time-frequency resource set belong to the time-frequency resources occupied by the K time-frequency resource blocks, the target start time set is the first start time set.

As a sub-embodiment of the foregoing embodiment, the time-frequency resources occupied by the K time-frequency resource blocks include time-frequency resources orthogonal to the time-frequency resources occupied by the target time-frequency resource set.

As a sub-embodiment of the foregoing embodiment, the time-frequency resources occupied by the K time-frequency resource blocks are the same as the time-frequency resources occupied by the target time-frequency resource set.

Example 9

Embodiment 9 illustrates a schematic diagram in which a given access detection performed on a given subband is used to determine whether to start transmitting a wireless signal at a given moment of the given subband, as shown in fig. 9.

In embodiment 9, the given access detection includes performing X times of energy detection in X time sub-pools on the given sub-band, respectively, to obtain X detection values, where X is a positive integer; the ending time of the X time sub-pools is no later than the given time. The given access detection corresponds to the J first access detections in the present application, the J is equal to 1, the given time corresponds to a starting transmission time of the first wireless signal in the present application, and the given sub-band corresponds to the first frequency band in the present application; or the given access detection corresponds to one first access detection in the J first access detections in the application, wherein J is greater than 1, the given moment corresponds to the initial sending moment of the first wireless signal in the application, and the given sub-band corresponds to one sub-band corresponding to the given access detection in the J sub-bands in the application; or the given access detection corresponds to one of the M second access detections in the present application, and the given subband corresponds to one of the M subbands in the present application, which corresponds to the given access detection. The procedure of the given access detection may be described by a flow chart in fig. 9.

In fig. 9, the base station apparatus in the present application is in an idle state in step S1001, and determines in step S1002 whether transmission is required; performing energy detection in step 1003 for a delay period (transfer duration); in step S1004, it is judged whether all slot periods within this delay period are idle, and if so, it proceeds to step S1005 to set the first counter equal to X1, where X1 is an integer not greater than X; otherwise, returning to the step S1004; in step S1006, it is determined whether the first counter is 0, and if so, the process proceeds to step S1007 to transmit a radio signal on a given time-frequency resource; otherwise proceeding to step S1008 to perform energy detection during an additional slot period (additional slot duration); in step S1009, it is determined whether this additional slot period is idle, and if so, it proceeds to step S1010 where the first counter is decremented by 1, and then returns to step 1006; otherwise proceeding to step S1011 to perform energy detection during an additional delay period (additional defer duration); in step S1012, it is judged whether or not all slot periods within this additional delay period are idle, and if so, the process proceeds to step S1010; otherwise, the process returns to step S1011.

In embodiment 9, the first counter in fig. 9 is cleared before the given time, and the given access detection results in a channel being idle, and a wireless signal may be transmitted at the given time; otherwise, the wireless signal cannot be transmitted at the given time. The condition for clearing the first counter is that all X1 detection values in the X detection values corresponding to the X1 time sub-pools in the X time sub-pools are lower than a first reference threshold, and the start time of the X1 time sub-pools is after step S1005 in fig. 9.

As an embodiment, the end time of the given access detection is no later than the given time.

As an embodiment, the end time of the given access detection is earlier than the given time.

As an example, the X time sub-pools include all of the delay periods of fig. 9.

As an embodiment, the X time sub-pools include a portion of the delay period of fig. 9.

As an embodiment, the X time sub-pools include all delay periods and all additional slot periods in fig. 9.

As an embodiment, the X time sub-pools include all delay periods and part of the additional slot periods in fig. 9.

As an embodiment, the X time sub-pools include all delay periods, all additional slot periods, and all additional delay periods in fig. 9.

As an embodiment, the X time sub-pools include all delay periods, part of the additional slot periods, and all additional delay periods in fig. 9.

As an embodiment, the X time sub-pools include all delay periods, a portion of the additional time slot periods, and a portion of the additional delay periods in fig. 9.

As one embodiment, the duration of any one of the X time sub-pools is one of {16 microseconds, 9 microseconds }.

As an embodiment, any one slot period (slot duration) within a given time period is one of the X time sub-pools; the given time period is any one of { all delay periods, all additional slot periods, all additional delay periods } included in fig. 9.

As one embodiment, performing energy detection within a given time period refers to: performing energy detection during all slot periods (slot duration) within the given time period; the given time period is any one of { all delay periods, all additional slot periods, all additional delay periods } included in fig. 9.

As one embodiment, the determination that it is idle by energy detection for a given time period means that: all slot periods included in the given period are judged to be idle by energy detection; the given time period is any one of { all delay periods, all additional slot periods, all additional delay periods } included in fig. 9.

As one embodiment, a given slot period being determined to be idle by energy detection means that: the base station device perceives (Sense) the power of all radio signals over the given sub-band in a given time unit and averages over time, the obtained received power being below the first reference threshold; the given time unit is one of the duration periods of the given time slot.

As a sub-embodiment of the above embodiment, the duration of the given time unit is not shorter than 4 microseconds.

As one embodiment, a given slot period being determined to be idle by energy detection means that: the base station device perceives (Sense) the energy of all radio signals over the given sub-band in a given time unit and averages over time, the obtained received energy being below the first reference threshold; the given time unit is one of the duration periods of the given time slot.

As one embodiment, performing energy detection within a given time period refers to: performing energy detection within all time sub-pools within the given time period; the given time period is any one period of { all delay periods, all additional slot periods, all additional delay periods } included in fig. 9, and the all time sub-pools belong to the X time sub-pools.

As one embodiment, the determination that it is idle by energy detection for a given time period means that: the detection values obtained by energy detection of all the time sub-pools included in the given period are lower than the first reference threshold value; the given time period is any one period of { all delay periods, all additional slot periods, all additional delay periods } included in fig. 9, the all time sub-pools belong to the X time sub-pools, and the detection values belong to the X detection values.

As an example, the duration of one delay period (delay duration) is 16 microseconds plus Y1 to 9 microseconds, said Y1 being a positive integer.

As a sub-embodiment of the above embodiment, one delay period includes y1+1 time sub-pools of the X time sub-pools.

As a reference embodiment of the above sub-embodiment, the duration of the first time sub-pool of the y1+1 time sub-pools is 16 microseconds, and the duration of the other Y1 time sub-pools is 9 microseconds.

As a sub-embodiment of the above embodiment, the given priority level is used to determine the Y1.

As a reference embodiment of the above sub-embodiment, the given Priority level is a channel access Priority level (CHANNEL ACCESS Priority Class), and the definition of the channel access Priority level is described in section 15 in 3gpp ts 36.213.

As a sub-embodiment of the above embodiment, Y1 belongs to {1,2,3,7}.

As one embodiment, one delay period (delay duration) includes a plurality of slot periods (slot duration).

As a sub-embodiment of the above embodiment, the first slot period and the second slot period of the plurality of slot periods are discontinuous.

As a sub-embodiment of the above embodiment, the time interval between the first slot period and the second slot period of the plurality of slot periods is 7 milliseconds.

As an embodiment, the duration of one additional delay period (additional defer duration) is 16 microseconds plus Y2 9 microseconds, said Y2 being a positive integer.

As a sub-embodiment of the above embodiment, an additional delay period includes y2+1 time sub-pools of the X time sub-pools.

As a reference embodiment of the above sub-embodiment, the duration of the first time sub-pool of the y2+1 time sub-pools is 16 microseconds, and the duration of the other Y2 time sub-pools is 9 microseconds.

As a sub-embodiment of the above embodiment, the given priority level is used to determine the Y2.

As a sub-embodiment of the above embodiment, Y2 belongs to {1,2,3,7}.

As an embodiment, the duration of one delay period is equal to the duration of one additional delay period.

As an embodiment, said Y1 is equal to said Y2.

As one embodiment, one additional delay period (additional defer duration) includes a plurality of slot periods (slot duration).

As one example, the duration of one slot period (slot duration) is 9 microseconds.

As an embodiment, one slot period is 1 time sub-pool of the X time sub-pools.

As one embodiment, the duration of one additional slot period (additional slot duration) is 9 microseconds.

As an embodiment, one additional slot period comprises 1 time sub-pool of the X time sub-pools.

As one embodiment, the X energy detections are used to determine whether the given subband is Idle.

As one embodiment, the X times energy detection is used to determine whether the given sub-band can be used by the base station device for transmitting wireless signals.

As an example, the X detection value units are dBm (millidecibel).

As one example, the X detection values are all in milliwatts (mW).

As an example, the X detection values are all in joules.

As one embodiment, the X1 is smaller than the X.

As an embodiment, the X is greater than 1.

As one embodiment, the first reference threshold is in dBm (millidecibel).

As one embodiment, the first reference threshold is in milliwatts (mW).

As one embodiment, the first reference threshold is in joules.

As an embodiment, the first reference threshold is equal to or less than-72 dBm.

As an embodiment, the first reference threshold is any value equal to or smaller than a first given value.

As a sub-embodiment of the above embodiment, the first given value is predefined.

As a sub-embodiment of the above embodiment, the first given value is configured by higher layer signaling.

As an embodiment, the first reference threshold value is freely selected by the base station apparatus under a condition equal to or smaller than a first given value.

As an embodiment, the X times of energy detection is energy detection during LBT (Listen Before Talk ) of Cat 4, the X1 is CWp during LBT of Cat 4, the CWp is the size of a contention window (contention window), the specific definition of CWp is described in section 15 in 3gpp ts 36.213.

As an embodiment, at least one of the detection values not belonging to the X1 detection values is lower than the first reference threshold.

As an embodiment, at least one of the detection values not belonging to the X1 detection values is not lower than the first reference threshold.

As an embodiment, the duration of any two time sub-pools of the X1 time sub-pools is equal.

As an embodiment, there are at least two time sub-pools of the X1 time sub-pools of unequal duration.

As an embodiment, the X1 time sub-pools include the latest time sub-pool of the X time sub-pools.

As an embodiment, the X1 time sub-pools only include slot periods in eCCA.

As one embodiment, the X time sub-pools include the X1 time sub-pools and X2 time sub-pools, any one of the X2 time sub-pools not belonging to the X1 time sub-pools; the X2 is a positive integer not greater than the X minus the X1.

As a sub-embodiment of the above embodiment, the X2 time sub-pools include slot periods in an initial CCA.

As a sub-embodiment of the above embodiment, the positions of the X2 time sub-pools in the X time sub-pools are consecutive.

As a sub-embodiment of the foregoing embodiment, at least one time sub-pool of the X2 time sub-pools corresponds to a detection value lower than the first reference threshold.

As a sub-embodiment of the foregoing embodiment, at least one time sub-pool of the X2 time sub-pools corresponds to a detection value not lower than the first reference threshold.

As a sub-embodiment of the above embodiment, the X2 time sub-pools include all slot periods within all delay periods.

As a sub-embodiment of the above embodiment, the X2 time sub-pools comprise all slot periods within at least one additional delay period.

As a sub-embodiment of the above embodiment, the X2 time sub-pools comprise at least one additional slot period.

As a sub-embodiment of the above embodiment, the X2 time sub-pools include all the additional time slot periods and all the time slot periods within all the additional delay periods that are determined to be non-idle by the energy detection in fig. 9.

As one embodiment, the X1 time sub-pools belong to X1 sub-pool sets respectively, and any one of the X1 sub-pool sets includes a positive integer number of the X time sub-pools; and the detection value corresponding to any time sub-pool in the X1 sub-pool set is lower than the first reference threshold value.

As a sub-embodiment of the foregoing embodiment, the number of time sub-pools included in at least one sub-pool set among the X1 sub-pool sets is equal to 1.

As a sub-embodiment of the foregoing embodiment, the number of time sub-pools included in at least one sub-pool set in the X1 sub-pool sets is greater than 1.

As a sub-embodiment of the above embodiment, the number of time sub-pools included in at least two sub-pool sets in the X1 sub-pool sets is not equal.

As a sub-embodiment of the above embodiment, there is no time sub-pool of the X time sub-pools belonging to two sub-pool sets of the X1 sub-pool sets at the same time.

As a sub-embodiment of the above embodiment, all time sub-pools in any one of the X1 sub-pool sets belong to the same additional delay period or additional slot period determined to be idle by energy detection.

As a sub-embodiment of the foregoing embodiment, at least one detection value corresponding to a time sub-pool that does not belong to the X1 sub-pool set among the X time sub-pools is lower than the first reference threshold.

As a sub-embodiment of the foregoing embodiment, at least one detection value corresponding to a time sub-pool that does not belong to the X1 sub-pool set in the X time sub-pools is not lower than the first reference threshold.

Example 10

Embodiment 10 illustrates another schematic diagram in which a given access detection performed on a given subband is used to determine whether to start transmitting wireless signals at a given moment of the given subband, as shown in fig. 10.

In embodiment 10, the given access detection includes performing Y times of energy detection in Y time sub-pools on the given sub-band, respectively, to obtain Y detection values, where Y is a positive integer; the end time of the Y time sub-pools is no later than the given time. The given access detection corresponds to the J first access detections in the present application, the J is equal to 1, the given time corresponds to a starting transmission time of the first wireless signal in the present application, and the given sub-band corresponds to the first frequency band in the present application; or the given access detection corresponds to one first access detection in the J first access detections in the application, wherein J is greater than 1, the given moment corresponds to the initial sending moment of the first wireless signal in the application, and the given sub-band corresponds to one sub-band corresponding to the given access detection in the J sub-bands in the application; or the given access detection corresponds to one of the M second access detections in the present application, and the given subband corresponds to one of the M subbands in the present application, which corresponds to the given access detection. The process of the given access detection may be described by the flow chart in fig. 10.

In embodiment 10, the ue in the present application is in an idle state in step S2201, and determines in step S2202 whether transmission is required; performing energy detection in step 2203 for a sensing time (SENSING INTERVAL); determining in step S2204 whether all slot periods within this perceived time are Idle (Idle), if so, proceeding to step S2205 to transmit wireless signals on said first sub-band; otherwise, the process returns to step S2203.

In embodiment 10, the first given period includes a positive integer number of time sub-pools of the Y time sub-pools, and the first given period is any one period of { all perceived times } included in fig. 10. The second given period, which is the perceived time that is determined to be Idle (Idle) by energy detection in fig. 10, includes 1 time sub-pool among the Y1 time sub-pools.

For a specific definition of the sensing time, see section 15.2 in 3gpp ts36.213, as an embodiment.

As an embodiment, Y1 is equal to 2.

As an embodiment, said Y1 is equal to said Y.

As an example, the duration of one sensing time (SENSING INTERVAL) is 25 microseconds.

As one embodiment, one sensing time includes 2 slot periods, which are discontinuous in the time domain.

As a sub-embodiment of the above embodiment, the time interval in the 2 slot periods is 7 microseconds.

As one embodiment, the Y time sub-pools include listening times in Category 2 LBT.

As an embodiment, the Y time sub-pools include time slots in a perceived time interval (SENSING INTERVAL) in Type 2UL channel access procedure (second Type uplink channel access procedure), the specific definition of the perceived time interval is described in section 15.2 in 3gpp ts 36.213.

As a sub-embodiment of the above embodiment, the duration of the sensing time interval is 25 microseconds.

As an embodiment, the Y time sub-pools include Tf and Tsl in a perceived time interval (SENSING INTERVAL) in Type 2UL channel access procedure (second Type of uplink channel access procedure), the specific definition of Tf and Tsl being referred to in section 15.2 in 3gpp ts 36.213.

As a sub-embodiment of the above embodiment, the duration of Tf is 16 microseconds.

As a sub-embodiment of the above embodiment, the duration of Tsl is 9 microseconds.

As an embodiment, the duration of a first one of the Y1 time sub-pools is 16 microseconds, the duration of a second one of the Y1 time sub-pools is 9 microseconds, and Y1 is equal to 2.

As an embodiment, the duration of the Y1 time sub-pools is 9 microseconds; the time interval between the first time sub-pool and the second time sub-pool of the Y1 time sub-pools is 7 microseconds, and Y1 is equal to 2.

Example 11

Embodiment 11 illustrates a block diagram of a processing apparatus in a UE, as shown in fig. 11. In fig. 11, a UE processing device 1200 includes a first receiver 1201 and a first transmitter 1202.

As an example, the first receiver 1201 includes the receiver 456, the receiving processor 452, and the controller/processor 490 of example 4.

As an example, the first receiver 1201 includes at least two of the receiver 456, the receive processor 452, and the controller/processor 490 of example 4.

As one example, the first transmitter 1202 includes the transmitter 456, the transmit processor 455, and the controller/processor 490 of example 4.

As one example, the first transmitter 1202 includes at least two of the transmitter 456, the transmit processor 455, and the controller/processor 490 of example 4.

First receiver 1201: receiving K0 first signaling;

-a first transmitter 1202: transmitting a first wireless signal in a target time-frequency resource set;

In embodiment 11, the K0 first signaling is used to determine K time-frequency resource blocks, where frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, the first receiver 1201 also performs J first access detections; wherein the J first access detections are used to determine that the first wireless signal is transmitted in the target set of time-frequency resources, the J being a positive integer; the J is equal to 1, the J first access detections being performed on a first frequency band comprising frequency domain resources occupied by the target set of time-frequency resources; or the J is greater than 1, the J first access detections are respectively performed on J sub-bands, the target set of time-frequency resources includes J target subsets of resources, the J sub-bands respectively include frequency domain resources occupied by the J target subsets of resources, the J first access detections are used to determine that the first wireless signal is transmitted in only J1 target subsets of resources among the J target subsets of resources, the time-frequency resources occupied by the J1 target subsets of resources include time-frequency resources occupied by the first wireless signal, and the J1 is a positive integer not greater than the J.

As an embodiment, the first transmitter 1202 also selects the first time window from the N time windows by itself; the time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1.

For one embodiment, the first receiver 1201 also receives first information; wherein the first information is used to determine the set of target time-frequency resources.

As one embodiment, the sender of the K0 first signaling performs M second access detections on M subbands, where the M second access detections are used to determine the K time-frequency resource blocks, and K subbands in the M subbands include frequency domain resources occupied by the K time-frequency resource blocks, respectively, and M is a positive integer greater than 1 and not less than the K.

Example 12

Embodiment 12 illustrates a block diagram of the processing means in a base station apparatus, as shown in fig. 12. In fig. 12, the processing apparatus 1300 in the base station device includes a second transmitter 1301 and a second receiver 1302.

As an example, the second transmitter 1301 includes the transmitter 416, the transmission processor 415, and the controller/processor 440 in example 4.

As one example, the second transmitter 1301 includes at least two of the transmitter 416, the transmission processor 415, and the controller/processor 440 in example 4.

As an example, the second receiver 1302 includes the receiver 416, the receiving processor 412, and the controller/processor 440 of example 4.

As one example, the second receiver 1302 includes at least two of the receiver 416, the receive processor 412, and the controller/processor 440 of example 4.

-A second transmitter 1301 transmitting K0 first signaling;

a second receiver 1302 that receives a first wireless signal in a target set of time-frequency resources;

In embodiment 12, the K0 first signaling is used to determine K time-frequency resource blocks, where frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are orthogonal; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K0 is a positive integer, and the K is a positive integer.

As an embodiment, the second receiver 1302 further monitors the target set of time-frequency resources for whether the first wireless signal is transmitted; wherein a sender of the first wireless signal performs J first access detections to determine that the first wireless signal is sent in the target set of time-frequency resources, the J being a positive integer; the J is equal to 1, the J first access detections being performed on a first frequency band comprising frequency domain resources occupied by the target set of time-frequency resources; or the J is greater than 1, the J first access detections are respectively performed on J sub-bands, the set of target time-frequency resources includes J target resource subsets, the J sub-bands respectively include frequency domain resources respectively occupied by the J target resource subsets, the J first access detections are used to determine that the first wireless signal is transmitted in only J1 target resource subsets among the J target resource subsets, and the J1 is a positive integer not greater than the J.

As an embodiment, the sender of the first wireless signal selects a first time window from N time windows by itself, the time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1.

As an embodiment, the second transmitter 1301 also transmits first information; wherein the first information is used to determine the set of target time-frequency resources.

As an embodiment, the second receiver 1302 further performs M second access detections on M subbands, respectively; the M second access detections are used to determine the K time-frequency resource blocks, where K subbands in the M subbands respectively include frequency domain resources occupied by the K time-frequency resource blocks, and M is a positive integer greater than 1 and not less than K.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The user equipment, the terminal and the UE in the application comprise, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircrafts, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted Communication equipment, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (MACHINE TYPE Communication) terminals, eMTC (ENHANCED MTC ) terminals, data cards, network cards, vehicle-mounted Communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless Communication equipment. The base station or system device 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) NR node B, a TRP (TRANSMITTER RECEIVER Point, transmission/reception node), and other wireless communication devices.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A user equipment for wireless communication, comprising:

Wherein, the K0 is equal to 1, the K0 first signaling is DCI, the CRC bit sequence of the K0 first signaling is scrambled by a first identity, the first identity is SFI-RNTI; the K0 first signaling is used to indicate the K time-frequency resource blocks; the K0 first signaling indicates K sub-bands from M sub-bands, wherein the K sub-bands respectively comprise frequency domain resources respectively occupied by the K time-frequency resource blocks; the K0 first signaling also indicates time domain resources occupied by the K time-frequency resource blocks; the frequency domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are orthogonal, and the time domain resources occupied by any two time-frequency resource blocks in the K time-frequency resource blocks are the same; the target time-frequency resource set comprises time-frequency resources occupied by the first wireless signal; the initial sending time of the first wireless signal belongs to a target initial time set, and the relation between the target time-frequency resource set and the K time-frequency resource blocks is used for determining the target initial time set; the target starting time set is a first starting time set or a second starting time set, the first starting time set comprises a positive integer number of starting times, the second starting time set comprises a positive integer number of starting times, and the earliest starting time in the second starting time set is earlier than the earliest starting time in the first starting time set; the K is a positive integer.

2. The user equipment of claim 1, wherein the target set of start moments is the first set of start moments if time-frequency resources occupied by the target set of time-frequency resources and time-frequency resources occupied by the K time-frequency resource blocks are partially overlapping and the target set of time-frequency resources comprises time-frequency resources orthogonal to time-frequency resources occupied by the K time-frequency resource blocks.

3. The user equipment according to claim 1 or 2, wherein the target set of start moments is the first set of start moments if the time-frequency resources occupied by the target set of time-frequency resources belong to the time-frequency resources occupied by the K time-frequency resource blocks; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

4. A user equipment according to any of claims 1 to 3, wherein the first receiver further performs J first access detections; wherein the J first access detections are used to determine that the first wireless signal is transmitted in the target set of time-frequency resources, the J being a positive integer;

wherein,

The J is equal to 1, the J first access detections being performed on a first frequency band comprising frequency domain resources occupied by the target set of time-frequency resources; or alternatively

The J is greater than 1, the J first access detections are performed on J sub-bands, respectively, the set of target time-frequency resources includes J target resource subsets, the J sub-bands include frequency domain resources occupied by the J target resource subsets, respectively, the J first access detections are used to determine that the first wireless signal is transmitted in only J1 target resource subsets of the J target resource subsets, the time-frequency resources occupied by the J1 target resource subsets include time-frequency resources occupied by the first wireless signal, and the J1 is a positive integer not greater than the J.

5. The user equipment according to any of claims 1 to 4, wherein the first transmitter further selects a first time window from among N time windows by itself; the time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1.

6. The user equipment according to any of claims 1 to 5, wherein the first receiver further receives first information; wherein the first information is used to determine the set of target time-frequency resources.

7. The user equipment of claim 6, wherein the first information comprises part or all of a ConfiguredGrantConfig IE field in one RRC signaling; or the first information is carried by DCI signaling, and CRC bit sequences of the DCI signaling carrying the first information are scrambled by CS-RNTI.

8. The user equipment according to any of claims 1 to 7, wherein the sender of the K0 first signaling performs M second access detections on the M subbands, respectively, the M second access detections being used for determining the K time-frequency resource blocks, the K subbands in the M subbands respectively comprise frequency domain resources occupied by the K time-frequency resource blocks respectively, and the M is a positive integer greater than 1 and not less than the K.

9. The user equipment of claim 8, wherein the M second access detections are used to determine that only the K subbands of the M subbands are Idle.

10. The user equipment according to any of claims 1 to 9, wherein the first radio signal is transmitted on an uplink physical layer data channel, which is PUSCH.

11. The user equipment according to any of the claims 1 to 10, characterized in that the user equipment randomly selects one starting instant from the set of target starting instants as starting transmission instant of the first wireless signal.

12. The user equipment according to any of claims 1 to 11, wherein the first set of start times is jointly determined by a first set of offsets and a reference time, and the second set of start times is jointly determined by a second set of offsets and the reference time; the first starting time set comprises T1 starting times, the first offset set comprises T1 offset values, and T1 is a positive integer; the second starting time set comprises T2 starting times, the second offset set comprises T2 offset values, and T2 is a positive integer; the T1 offset values are respectively time offsets of the T1 start moments relative to the reference moment, and the T2 offset values are respectively time offsets of the T2 start moments relative to the reference moment.

13. The user equipment of claim 12, wherein the reference time instant is a starting time instant of one multicarrier symbol.

14. A base station apparatus for wireless communication, comprising:

15. The base station apparatus of claim 14, wherein the target set of start moments is the first set of start moments if time-frequency resources occupied by the target set of time-frequency resources and time-frequency resources occupied by the K time-frequency resource blocks are partially overlapping and the target set of time-frequency resources comprises time-frequency resources orthogonal to time-frequency resources occupied by the K time-frequency resource blocks.

16. The base station device according to claim 14 or 15, wherein the target set of start moments is the first set of start moments if the time-frequency resources occupied by the target set of time-frequency resources belong to the time-frequency resources occupied by the K time-frequency resource blocks; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

17. The base station apparatus according to any one of claims 14 to 16, wherein the second receiver further monitors whether the first wireless signal is transmitted in the target set of time-frequency resources; wherein a sender of the first wireless signal performs J first access detections to determine that the first wireless signal is sent in the target set of time-frequency resources, the J being a positive integer;

wherein,

The J is greater than 1, the J first access detections are each performed on J sub-bands, the set of target time-frequency resources including J target subsets of resources, the J sub-bands each including frequency domain resources occupied by the J target subsets of resources, the J first access detections being used to determine that the first wireless signal is transmitted in only J1 target subsets of resources of the J target subsets of resources, the J1 being a positive integer not greater than the J.

18. The base station device according to any of claims 14 to 17, wherein the sender of the first wireless signal selects a first time window from N time windows, the time domain resources occupied by the target set of time-frequency resources belonging to the first time window, the first time window being one of the N time windows, the N being a positive integer greater than 1.

19. The base station apparatus according to any one of claims 14 to 18, wherein the second transmitter further transmits first information; wherein the first information is used to determine the set of target time-frequency resources.

20. The base station apparatus of claim 19, wherein the first information comprises part or all of a ConfiguredGrantConfigIE field in one RRC signaling; or the first information is carried by DCI signaling, and CRC bit sequences of the DCI signaling carrying the first information are scrambled by CS-RNTI.

21. The base station apparatus according to any one of claims 14 to 20, wherein the second receiver further performs M second access detections on M subbands, respectively; the M second access detections are used to determine the K time-frequency resource blocks, where K subbands in the M subbands respectively include frequency domain resources occupied by the K time-frequency resource blocks, and M is a positive integer greater than 1 and not less than K.

22. The base station device of claim 21, wherein the M second access detections are used to determine that only the K subbands of the M subbands are Idle.

23. The base station device according to any of the claims 14 to 22, characterized in that the first radio signal is transmitted on an uplink physical layer data channel, which is PUSCH.

24. The base station apparatus according to any one of claims 14 to 23, wherein the sender of the first wireless signal randomly selects one starting time from the set of target starting times as the starting transmission time of the first wireless signal.

25. The base station apparatus according to any of claims 14 to 24, wherein the first set of start times is determined jointly by a first set of offsets and a reference time, and the second set of start times is determined jointly by a second set of offsets and the reference time; the first starting time set comprises T1 starting times, the first offset set comprises T1 offset values, and T1 is a positive integer; the second starting time set comprises T2 starting times, the second offset set comprises T2 offset values, and T2 is a positive integer; the T1 offset values are respectively time offsets of the T1 start moments relative to the reference moment, and the T2 offset values are respectively time offsets of the T2 start moments relative to the reference moment.

26. The base station apparatus of claim 25, wherein the reference time is a starting time of one multicarrier symbol.

27. A method in a user equipment for wireless communication, comprising:

28. The method of claim 27, wherein the target set of start moments is the first set of start moments if time-frequency resources occupied by the target set of time-frequency resources and time-frequency resources occupied by the K time-frequency resource blocks are partially overlapping and the target set of time-frequency resources comprises time-frequency resources orthogonal to time-frequency resources occupied by the K time-frequency resource blocks.

29. The method according to claim 27 or 28, wherein the target set of start moments is the first set of start moments if the time-frequency resources occupied by the target set of time-frequency resources belong to the time-frequency resources occupied by the K time-frequency resource blocks; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

30. The method according to any of claims 27 to 29, wherein J first access detections are performed; wherein the J first access detections are used to determine that the first wireless signal is transmitted in the target set of time-frequency resources, the J being a positive integer;

wherein,

31. The method according to any one of claims 27 to 30, wherein the first time window is selected by itself from N time windows; the time domain resource occupied by the target time-frequency resource set belongs to the first time window, the first time window is one time window in the N time windows, and N is a positive integer greater than 1.

32. A method according to any one of claims 27 to 31, wherein the first information is received; wherein the first information is used to determine the set of target time-frequency resources.

33. The method of claim 32, wherein the first information comprises part or all of ConfiguredGrantConfig IE fields in an RRC signaling; or the first information is carried by DCI signaling, and CRC bit sequences of the DCI signaling carrying the first information are scrambled by CS-RNTI.

34. The method according to any of the claims 27 to 33, wherein the sender of the K0 first signaling performs M second access detections on the M subbands, respectively, the M second access detections being used for determining the K time-frequency resource blocks, the K subbands of the M subbands respectively comprising frequency domain resources occupied by the K time-frequency resource blocks respectively, the M being a positive integer greater than 1 and not less than the K.

35. The method of claim 34, wherein the M second access detections are used to determine that only the K subbands of the M subbands are Idle.

36. The method according to any of claims 27 to 35, wherein the first radio signal is transmitted on an uplink physical layer data channel, which is PUSCH.

37. The method according to any of the claims 27 to 36, characterized in that one starting instant is randomly selected from the set of target starting instants as starting transmission instant of the first wireless signal.

38. The method according to any of claims 27 to 37, wherein the first set of start moments is jointly determined by a first set of offsets and a reference moment, and the second set of start moments is jointly determined by a second set of offsets and the reference moment; the first starting time set comprises T1 starting times, the first offset set comprises T1 offset values, and T1 is a positive integer; the second starting time set comprises T2 starting times, the second offset set comprises T2 offset values, and T2 is a positive integer; the T1 offset values are respectively time offsets of the T1 start moments relative to the reference moment, and the T2 offset values are respectively time offsets of the T2 start moments relative to the reference moment.

39. The method of claim 38, wherein the reference time instant is a starting time instant of one multicarrier symbol.

40. A method in a base station apparatus for wireless communication, comprising:

-receiving a first wireless signal in a target set of time-frequency resources;

41. The method of claim 40, wherein the target set of start times is the first set of start times if the time-frequency resources occupied by the target set of time-frequency resources and the time-frequency resources occupied by the K time-frequency resource blocks are partially overlapping and the target set of time-frequency resources comprises time-frequency resources orthogonal to the time-frequency resources occupied by the K time-frequency resource blocks.

42. The method of claim 40 or 41, wherein the target set of start moments is the first set of start moments if time-frequency resources occupied by the target set of time-frequency resources belong to time-frequency resources occupied by the K time-frequency resource blocks; and if the time-frequency resources occupied by the target time-frequency resource set and the time-frequency resources occupied by the K time-frequency resource blocks are orthogonal, the target starting moment set is the second starting moment set.

43. The method according to any one of claims 40 to 42, wherein monitoring in the target set of time-frequency resources whether the first wireless signal is transmitted; wherein a sender of the first wireless signal performs J first access detections to determine that the first wireless signal is sent in the target set of time-frequency resources, the J being a positive integer;

wherein,

44. The method of any one of claims 40 to 43, wherein the sender of the first wireless signal selects a first time window from among N time windows, the time domain resources occupied by the target set of time-frequency resources belonging to the first time window, the first time window being one of the N time windows, N being a positive integer greater than 1.

45. The method of any one of claims 40 to 44, wherein the first information is transmitted; wherein the first information is used to determine the set of target time-frequency resources.

46. The method of claim 45, wherein the first information comprises part or all of ConfiguredGrantConfig IE fields in an RRC signaling; or the first information is carried by DCI signaling, and CRC bit sequences of the DCI signaling carrying the first information are scrambled by CS-RNTI.

47. The method according to any of claims 40 to 46, wherein M second access detections are performed on M subbands, respectively; the M second access detections are used to determine the K time-frequency resource blocks, where K subbands in the M subbands respectively include frequency domain resources occupied by the K time-frequency resource blocks, and M is a positive integer greater than 1 and not less than K.

48. The method of claim 47, wherein the M second access detections are used to determine that only the K of the M subbands are Idle.

49. The method of any of claims 40 to 48, wherein the first radio signal is transmitted on an uplink physical layer data channel, the uplink physical layer data channel being a PUSCH.

50. The method of any of claims 40-49, wherein the sender of the first wireless signal randomly selects one starting time from the set of target starting times as the starting transmission time of the first wireless signal.

51. The method of any one of claims 40 to 50, wherein the first set of start moments is jointly determined by a first set of offsets and a reference moment, and the second set of start moments is jointly determined by a second set of offsets and the reference moment; the first starting time set comprises T1 starting times, the first offset set comprises T1 offset values, and T1 is a positive integer; the second starting time set comprises T2 starting times, the second offset set comprises T2 offset values, and T2 is a positive integer; the T1 offset values are respectively time offsets of the T1 start moments relative to the reference moment, and the T2 offset values are respectively time offsets of the T2 start moments relative to the reference moment.

52. The method of claim 51, wherein the reference time instant is a starting time instant of one multicarrier symbol.