A method and apparatus for use in user equipment and base stations for wireless communication

Abstract

This application discloses a method and apparatus for use in user equipment and base stations for wireless communication. The user equipment receives Q control signaling groups in Q time windows; receives a first control signaling, which is used to determine Q1 time windows among the Q time windows; performs energy detection to determine whether to transmit on a first time-frequency resource; wherein each control signaling in the Q control signaling groups includes a first field; the values ​​of the first field of all control signaling in any of the Q control signaling groups are the same; for any Q2 adjacent control signaling groups among the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first wireless signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows has been correctly decoded. This application can ensure the transmission of HARQ-ACK while reducing signaling overhead redundancy.

Description

[0001] This application is a divisional application of the following original application:

[0002] --The original application was filed on December 26, 2017.

[0003] --Original application number: 201780094900.9

[0004] --Original application title: A method and apparatus for use in user equipment and base stations for wireless communication Technical Field

[0005] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to communication methods and apparatus that support data transmission on unlicensed spectrum. Background Technology

[0006] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the system. In order to meet the different performance requirements of various application scenarios, the research project on access to unlicensed spectrum under NR (New Radio) was approved at the 75th plenary meeting of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network).

[0007] In LTE (Long Term Evolution) LAA (License Assisted Access), the transmitter (base station or user equipment) needs to perform LBT (Listen Before Talk) before transmitting data on unlicensed spectrum to ensure that it does not interfere with other ongoing radio transmissions on the unlicensed spectrum. In Cat 4 LBT (the fourth type of LBT, see 3GPP TR36.889), the transmitter also performs backoff after a certain defer duration. The backoff time is counted in CCA (Clear Channel Assessment) time slots, and the number of backoff time slots is randomly selected by the transmitter within the CWS (Contention Window Size). For downlink transmission, the CWS is adjusted based on the HARQ (Hybrid Automatic Repeat reQuest) feedback corresponding to the data in a previously transmitted reference subframe on the unlicensed spectrum. For uplink transmissions, CWS is adjusted based on whether new data is included in the data of a previous reference subframe on the unlicensed spectrum.

[0008] In existing NR systems, the Downlink Grant (DCI) (Downlink Control Information) includes the DAI (Downlink Assignment Index) field to support codebook-based HARQ-ACK. Summary of the Invention

[0009] The inventors discovered through research that for LAA communication, especially SA (Stand Alone)-LAA communication, the UE (User Equipment) needs to perform LBT (Local Bit Bypass) before sending the uplink HARQ-ACK. Therefore, the timing of the uplink HARQ-ACK transmission is likely uncertain. How to transmit the uplink HARQ-ACK in LAA communication is a problem that needs to be solved.

[0010] In response to the above findings, this application discloses a solution. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other. Furthermore, although the initial intention of this invention is for LAA communication, the methods and apparatus in this application are also applicable to communication on licensed spectrum.

[0011] This application discloses a method used in a user equipment for wireless communication, characterized by comprising:

[0012] - Receive Q control signaling groups in Q time windows respectively, wherein each of the Q control signaling groups includes a positive integer number of control signaling groups;

[0013] - Receive a first control signaling, which is used to determine Q1 time windows out of the Q time windows;

[0014] - Perform energy detection to determine whether to transmit on the first time-frequency resource; if transmission is performed, transmit the first radio signal on the first time-frequency resource; otherwise, abandon the transmission of the first radio signal on the first time-frequency resource.

[0015] Wherein, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows has been correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0016] As an example, the above method enables the base station to dynamically configure a time window associated with the first wireless signal for transmitting downlink data, ensuring that HARQ-ACKs dropped due to LBT can be delayed in transmission.

[0017] As an example, the above method enables the base station to dynamically configure a time window associated with the first wireless signal for transmitting downlink data, triggering retransmission of HARQ-ACKs that were not received correctly.

[0018] As an example, the first field can index the position of the HARQ-ACK bit corresponding to the corresponding time window in the first feedback information, thus avoiding confusion.

[0019] As an example, the first field can index the corresponding time window instead of the time slot within the corresponding time window, thereby reducing the signaling redundancy caused by the first field.

[0020] As an example, the Q control signaling groups and the first control signaling are all transmitted on unlicensed spectrum.

[0021] As an example, the first wireless signal is transmitted on an unlicensed spectrum.

[0022] Specifically, according to one aspect of the present invention, it is characterized by comprising:

[0023] - Receive Q wireless signal groups in Q time windows respectively. Each of the Q wireless signal groups includes Q bit block groups. Each of the Q bit block groups includes a positive integer number of bit blocks. Each of the Q wireless signal groups includes a positive integer number of wireless signals. The positive integer number of wireless signals corresponds one-to-one with the bit blocks in the corresponding bit block group.

[0024] The bit blocks transmitted in the Q1 time windows include Q1 bit block groups from the Q bit block groups, and the Q1 bit block groups are transmitted in the Q1 time windows respectively.

[0025] As an example, the Q control signaling groups and the Q radio signal groups correspond one-to-one. All control signaling in a control signaling group corresponds one-to-one with all radio signals in the corresponding radio signal group. A control signaling includes configuration information of the corresponding radio signal. The configuration information includes at least one of the following: {occupied time domain resources, occupied frequency domain resources, MCS (Modulation and Coding Status), RV (Redundancy Version), NDI (New Data Indicator)}.

[0026] As an example, one of the Q bit blocks in the group includes at least one TB (Transport Block).

[0027] As an example, one of the Q bit blocks in the bit block group includes at least one CBG (Code Block Group).

[0028] Specifically, according to one aspect of the present invention, the first control signaling is used to determine at least the first time-frequency resource in the configuration information of the first time-frequency resource and the first radio signal, the configuration information including at least one of modulation and coding state, redundancy version, new data indication and a set of reception parameters.

[0029] As an example, the above method enables the base station to dynamically configure the time-frequency resources occupied by the first wireless signal, thereby improving scheduling flexibility.

[0030] As an example, the above method enables the base station to trigger the first wireless signal as early as possible, reducing the delay of HARQ-ACK feedback.

[0031] As an example, the set of receiving parameters includes one or more of the following: {received beam, received analog beamforming matrix, received analog beamforming vector, received beamforming vector, received spatial filtering}.

[0032] As one embodiment, the set of receiving parameters includes spatial Rxparameters.

[0033] As one example, the set of received parameters includes configurations related to DMRS (DeModulation Reference Signal).

[0034] As an example, the first wireless signal explicitly indicates the configuration information of the first time-frequency resource and the first wireless signal.

[0035] As an example, the first wireless signal implicitly indicates the configuration information of the first time-frequency resource and the first wireless signal.

[0036] As one embodiment, the first wireless signal includes a first bit block in addition to the first feedback information.

[0037] As an example, the transmission channel corresponding to the first bit block is UL-SCH (UpLink Shared Channel).

[0038] Specifically, according to one aspect of the present invention, if the number of bit blocks transmitted in the Q1 time windows does not exceed a first threshold, each bit block in the Q1 time windows is indicated by a bit in the first feedback information as to whether it has been correctly decoded; otherwise, at least two bit blocks in the Q1 time windows are indicated by a bit in the first feedback information as to whether they have been correctly decoded in a bundled manner; any two bit blocks in the Q1 time windows correspond to different transport blocks or code block groups.

[0039] As an example, the above method can predetermine the number of bits occupied by the first feedback information, avoiding reserving too much or too little air interface resources for the first feedback information.

[0040] As an example, when all bit blocks associated with a given bit in the bundled manner are correctly decoded, the given bit is set to ACK by the user equipment; otherwise, the given bit is set to NACK by the user equipment.

[0041] As an example, the statement that any two bit blocks transmitted in the Q1 time windows correspond to different transport blocks or code block groups means that the bits in any two bit blocks transmitted in the Q1 time windows do not belong to the same code block group.

[0042] As an example, the statement that any two bit blocks transmitted in the Q1 time windows correspond to different transport blocks or code block groups means that the bits in any two bit blocks transmitted in the Q1 time windows do not belong to the same transport block.

[0043] As an example, any bit block among the bit blocks transmitted in the Q1 time windows includes at least one transmission block.

[0044] As an example, any bit block among the bit blocks transmitted in the Q1 time windows includes at least one code block group.

[0045] As an example, the first threshold is related to the number of REs (Resource Elements) occupied by the first time-frequency resource, wherein the RE occupies one subcarrier in the frequency domain and one multi-carrier symbol in the time domain.

[0046] As an example, the first threshold is related to the channel type to which the first time-frequency resource belongs.

[0047] As an example, if the first time-frequency resource belongs to a first channel type, the first threshold is a first candidate value; if the first time-frequency resource belongs to a second channel type, the first threshold is a second candidate value.

[0048] As an example, the first channel type and the second channel type are the physical uplink control channel and the physical uplink shared channel, respectively.

[0049] As an example, the first channel type and the second channel type are two different physical uplink control channel types.

[0050] Specifically, according to one aspect of the present invention, the first feedback information includes Q1 fields, each of the Q1 fields having the same number of bits, the Q1 fields corresponding one-to-one with the Q1 time windows, and each of the Q1 fields being used to determine whether the bit block transmitted in the corresponding time window has been correctly decoded.

[0051] As an example, the above method can predetermine the number and position of bits associated with each time window in the first feedback information, thus avoiding confusion.

[0052] As an example, the above method avoids using downlink signaling to indicate the number and location of associated bits for each time window, thus reducing downlink signaling overhead.

[0053] As an example, in LAA communication, the number of time slots in a time window is uncertain; as a simple extension of the existing LTE (Long Term Evolution) TDD (Time Division Duplex) scheme, air interface resources need to be reserved according to the maximum possible number of time slots, thus reducing transmission efficiency; while the above method makes the number of reserved bits independent of the number of time slots in a time window, thus improving transmission efficiency.

[0054] As an example, the number of bits in each of the Q1 fields is fixed.

[0055] As an example, the number of bits in each of the Q1 fields is 1.

[0056] As an example, if the number of bit blocks transmitted in a given time window is greater than 1, the corresponding fields in the Q1 fields are bundled to indicate whether all bit blocks transmitted in the given time window have been correctly decoded.

[0057] As an example, the number of bits in each of the Q1 fields is configurable.

[0058] As an example, the number of bits in each of the Q1 fields is semi-statically configured.

[0059] As an example, the number of bits in each of the Q1 fields is dynamically configured.

[0060] As an example, the number of bits in each of the Q1 fields is related to the channel type to which the first time-frequency resource belongs.

[0061] As an example, if the first time-frequency resource belongs to a first channel type, the number of bits in each of the Q1 fields is a third candidate value; if the first time-frequency resource belongs to a second channel type, the number of bits in each of the Q1 fields is a fourth candidate value.

[0062] As an example, the first channel type and the second channel type are the physical uplink control channel and the physical uplink shared channel, respectively.

[0063] As an example, the first channel type and the second channel type are two different physical uplink control channel types.

[0064] As an example, for each of the Q1 fields, if the number of bits in a field is less than the number of bit blocks transmitted in the corresponding time window, at least two bit blocks transmitted in the corresponding time window are bundled together by a bit to indicate whether they have been correctly decoded; otherwise, each bit block in the corresponding time window is individually indicated by a bit to indicate whether it has been correctly decoded.

[0065] Specifically, according to one aspect of the present invention, the first feedback information includes Q1 fields, each of the Q1 fields corresponding to one of the Q1 time windows, each of the Q1 fields being used to determine whether a bit block transmitted in the corresponding time window is correctly decoded, and the first control signaling being used to determine the number of bits in each of the Q1 fields.

[0066] As an example, the number of bits in each of the Q1 fields is the same.

[0067] The above embodiments can achieve a balance between downlink signaling and uplink signaling overhead, thereby optimizing transmission efficiency.

[0068] Specifically, according to one aspect of the invention, the first control signaling is transmitted in a first time window, the first control signaling including a second field, the second field in the first control signaling being used to determine at least one of the following:

[0069] - In accordance with the first order of adding the serving cell index and the second order of adding the physical downlink control channel monitoring timing index, the serving cell-physical downlink control channel monitoring timing pair, which includes downlink control information in the target format, is accumulated up to the current serving cell and the current physical downlink control channel monitoring timing in the first time window;

[0070] - The total number of serving cell-physical downlink control channel monitoring time pairs, including downlink control information in target format, up to the current physical downlink control channel monitoring time in the first time window.

[0071] As an example, the second field is the DAI (Downlink Assignment Index) field.

[0072] As an example, the second field consists of 4 bits.

[0073] As an example, the first control signaling is UpLink Grant DCI (Downlink Control Information).

[0074] As an example, the first time window is the most recent time window among the Q time windows.

[0075] As an example, the first time window is the most recent time window among the Q1 time windows.

[0076] As an example, the first time window is a time window other than the Q time windows.

[0077] As an example, the first time window is one time window outside the Q time windows.

[0078] As a sub-implementation of the above embodiment, there is at least one unoccupied multicarrier symbol among the most recent of the Q time windows in the first time window.

[0079] As an example, the current serving cell and the current physical downlink control channel monitoring (PDCCH Occasion) are respectively the serving cell carrying the first control signaling and the physical downlink control channel monitoring (PDCCH Occasion) carrying the first control signaling.

[0080] As an example, the target format downlink control information refers to the downlink grant DCI detected by the user equipment.

[0081] As an example, the downlink control information in the target format includes non-uplink granted DCI detected by the user equipment.

[0082] As an example, the downlink grant DCI includes DCI format 1_0 and DCI format 1_1.

[0083] This application discloses a method used in a base station for wireless communication, characterized by comprising:

[0084] - Send Q control signaling groups in Q time windows respectively, wherein each of the Q control signaling groups includes a positive integer number of control signaling groups;

[0085] - Send a first control signaling message, which is used to determine Q1 time windows out of the Q time windows;

[0086] - Monitor the first wireless signal on the first time-frequency resource;

[0087] Wherein, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows has been correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0088] As an example, the base station determines whether the first wireless signal exists in the time-frequency resources through blind detection.

[0089] As one example, the blind detection includes energy detection.

[0090] As one example, the blind detection includes detecting a sequence of features.

[0091] As one embodiment, the first feedback information includes one or more check bits, and the base station performs channel decoding on the received wireless signal on the first time-frequency resource; if the output of the channel decoding passes the check of the one or more check bits, the base station considers that the first feedback information has been received correctly; otherwise, the base station considers that the first feedback information has not been received correctly.

[0092] Specifically, according to one aspect of the present invention, it is characterized by comprising:

[0093] - Transmit Q wireless signal groups in Q time windows respectively. Each of the Q wireless signal groups includes Q bit block groups. Each of the Q bit block groups includes a positive integer number of bit blocks. Each of the Q wireless signal groups includes a positive integer number of wireless signals. The positive integer number of wireless signals corresponds one-to-one with the bit blocks in the corresponding bit block group.

[0094] The bit blocks transmitted in the Q1 time windows include Q1 bit block groups from the Q bit block groups, and the Q1 bit block groups are transmitted in the Q1 time windows respectively.

[0095] Specifically, according to one aspect of the present invention, the first control signaling is used to determine at least the first time-frequency resource in the configuration information of the first time-frequency resource and the first radio signal, the configuration information including at least one of modulation and coding state, redundancy version, new data indication and a set of reception parameters.

[0096] Specifically, according to one aspect of the present invention, if the number of bit blocks transmitted in the Q1 time windows does not exceed a first threshold, each bit block in the Q1 time windows is indicated by a bit in the first feedback information as to whether it has been correctly decoded; otherwise, at least two bit blocks in the Q1 time windows are indicated by a bit in the first feedback information as to whether they have been correctly decoded in a bundled manner; any two bit blocks in the Q1 time windows correspond to different transport blocks or code block groups.

[0097] Specifically, according to one aspect of the present invention, the first feedback information includes Q1 fields, each of the Q1 fields having the same number of bits, the Q1 fields corresponding one-to-one with the Q1 time windows, and each of the Q1 fields being used to determine whether the bit block transmitted in the corresponding time window has been correctly decoded.

[0098] Specifically, according to one aspect of the present invention, the first feedback information includes Q1 fields, each of the Q1 fields corresponding to one of the Q1 time windows, each of the Q1 fields being used to determine whether a bit block transmitted in the corresponding time window is correctly decoded, and the first control signaling being used to determine the number of bits in each of the Q1 fields.

[0099] Specifically, according to one aspect of the invention, the first control signaling is transmitted in a first time window, the first control signaling including a second field, the second field in the first control signaling being used to determine at least one of the following:

[0100] - In accordance with the first order of adding the serving cell index and the second order of adding the physical downlink control channel monitoring timing index, the serving cell-physical downlink control channel monitoring timing pair, which includes downlink control information in the target format, is accumulated up to the current serving cell and the current physical downlink control channel monitoring timing in the first time window;

[0101] - The total number of serving cell-physical downlink control channel monitoring time pairs, including downlink control information in target format, up to the current physical downlink control channel monitoring time in the first time window.

[0102] This application discloses a user equipment used for wireless communication, characterized in that it includes:

[0103] - First receiving module: Receives Q control signaling groups in Q time windows respectively, wherein each of the Q control signaling groups includes a positive integer number of control signalings; receives a first control signaling, wherein the first control signaling is used to determine Q1 time windows in the Q time windows;

[0104] - First transmission module: Performs energy detection to determine whether to transmit on the first time-frequency resource; if transmission is performed, transmits the first wireless signal in the first time-frequency resource; otherwise, abandons the transmission of the first wireless signal on the first time-frequency resource.

[0105] Wherein, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows has been correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0106] As an example, the user equipment used for wireless communication described above is characterized in that the first receiving module receives Q wireless signal groups in Q time windows, each of the Q wireless signal groups including Q bit block groups, each of the Q bit block groups including a positive integer number of bit blocks, and each of the Q wireless signal groups including a positive integer number of wireless signals, with each positive integer number of wireless signals corresponding one-to-one with a bit block in the corresponding bit block group; wherein the bit blocks transmitted in the Q1 time windows include Q1 bit block groups from the Q bit block groups, and the Q1 bit block groups are transmitted in the Q1 time windows respectively.

[0107] As an example, the user equipment used for wireless communication described above is characterized in that the first control signaling is used to determine at least the first time-frequency resource in the configuration information of the first time-frequency resource and the first wireless signal, wherein the configuration information includes at least one of modulation and coding state, redundancy version, new data indication and a set of reception parameters.

[0108] As an example, the user equipment used for wireless communication described above is characterized in that, if the number of bit blocks transmitted in the Q1 time windows does not exceed a first threshold, each bit block in the bit blocks transmitted in the Q1 time windows is indicated by a bit in the first feedback information whether it has been correctly decoded; otherwise, at least two bit blocks in the bit blocks transmitted in the Q1 time windows are indicated by a bit in the first feedback information in a bundled manner whether they have been correctly decoded; any two bit blocks in the bit blocks transmitted in the Q1 time windows correspond to different transport blocks or code block groups.

[0109] As an example, the user equipment used for wireless communication described above is characterized in that the first feedback information includes Q1 fields, each of the Q1 fields having the same number of bits, the Q1 fields corresponding one-to-one with the Q1 time windows, and each of the Q1 fields being used to determine whether the bit block transmitted in the corresponding time window has been correctly decoded.

[0110] As an example, the user equipment used for wireless communication described above is characterized in that the first feedback information includes Q1 fields, each of the Q1 fields corresponding to one of the Q1 time windows, each of the Q1 fields being used to determine whether the bit block transmitted in the corresponding time window is correctly decoded, and the first control signaling being used to determine the number of bits in each of the Q1 fields.

[0111] As an example, the user equipment used for wireless communication described above is characterized in that the first control signaling is transmitted in a first time window, the first control signaling includes a second field, and the second field in the first control signaling is used to determine at least one of the following:

[0112] - In accordance with the first order of adding the serving cell index and the second order of adding the physical downlink control channel monitoring timing index, the serving cell-physical downlink control channel monitoring timing pair, which includes downlink control information in the target format, is accumulated up to the current serving cell and the current physical downlink control channel monitoring timing in the first time window;

[0113] - The total number of serving cell-physical downlink control channel monitoring time pairs, including downlink control information in target format, up to the current physical downlink control channel monitoring time in the first time window.

[0114] This application discloses a base station device used for wireless communication, characterized in that it includes:

[0115] - Second transmission module: Transmits Q control signaling groups in Q time windows respectively, wherein each of the Q control signaling groups includes a positive integer number of control signalings; transmits a first control signaling, wherein the first control signaling is used to determine Q1 time windows in the Q time windows;

[0116] -Second receiving module: monitors the first wireless signal on the first time-frequency resource;

[0117] Wherein, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows has been correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0118] As an example, the base station equipment used for wireless communication described above is characterized in that the second transmitting module transmits Q wireless signal groups in Q time windows, each of the Q wireless signal groups including Q bit block groups, each of the Q bit block groups including a positive integer number of bit blocks, and each of the Q wireless signal groups including a positive integer number of wireless signals, with each positive integer number of wireless signals corresponding one-to-one with the bit blocks in the corresponding bit block group; wherein, the bit blocks transmitted in the Q1 time windows include Q1 bit block groups from the Q bit block groups, and the Q1 bit block groups are transmitted in the Q1 time windows respectively.

[0119] As an example, the base station equipment used for wireless communication described above is characterized in that the first control signaling is used to determine at least the first time-frequency resource in the configuration information of the first time-frequency resource and the first wireless signal, wherein the configuration information includes at least one of modulation and coding state, redundancy version, new data indication and a set of reception parameters.

[0120] As an example, the base station equipment used for wireless communication described above is characterized in that, if the number of bit blocks transmitted in the Q1 time windows does not exceed a first threshold, each bit block in the bit blocks transmitted in the Q1 time windows is indicated by a bit in the first feedback information whether it has been correctly decoded; otherwise, at least two bit blocks in the bit blocks transmitted in the Q1 time windows are indicated by a bit in the first feedback information in a bundled manner whether they have been correctly decoded; any two bit blocks in the bit blocks transmitted in the Q1 time windows correspond to different transport blocks or code block groups.

[0121] As an example, the base station device used for wireless communication described above is characterized in that the first feedback information includes Q1 fields, each of the Q1 fields having the same number of bits, the Q1 fields corresponding one-to-one with the Q1 time windows, and each of the Q1 fields being used to determine whether the bit block transmitted in the corresponding time window has been correctly decoded.

[0122] As an example, the base station device used for wireless communication described above is characterized in that the first feedback information includes Q1 fields, each of the Q1 fields corresponding to one of the Q1 time windows, each of the Q1 fields being used to determine whether the bit block transmitted in the corresponding time window is correctly decoded, and the first control signaling being used to determine the number of bits in each of the Q1 fields.

[0123] As an example, the base station equipment used for wireless communication described above is characterized in that the first control signaling is transmitted in a first time window, the first control signaling includes a second field, and the second field in the first control signaling is used to determine at least one of the following:

[0124] - In accordance with the first order of adding the serving cell index and the second order of adding the physical downlink control channel monitoring timing index, the serving cell-physical downlink control channel monitoring timing pair, which includes downlink control information in the target format, is accumulated up to the current serving cell and the current physical downlink control channel monitoring timing in the first time window;

[0125] - The total number of serving cell-physical downlink control channel monitoring time pairs, including downlink control information in target format, up to the current physical downlink control channel monitoring time in the first time window.

[0126] As an example, compared with conventional solutions, this application has the following advantages:

[0127] - Ensure that HARQ-ACKs dropped due to LBT are sent with a delay;

[0128] - The base station can dynamically configure a time window associated with the first wireless signal for transmitting downlink data, triggering retransmission of HARQ-ACKs that were not received correctly;

[0129] - To avoid confusion;

[0130] - Reduce signaling redundancy;

[0131] - To achieve a balance between downlink and uplink signaling overhead and optimize transmission efficiency;

[0132] - Improved scheduling flexibility and reduced HARQ-ACK feedback latency. Attached Figure Description

[0133] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0134] Figure 1 A processing flowchart on the user equipment side according to an embodiment of this application is shown;

[0135] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0136] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0137] Figure 4 A schematic diagram of an NR (New Radio) node and a UE according to an embodiment of this application is shown;

[0138] Figure 5 A flowchart of a wireless transmission according to an embodiment of this application is shown;

[0139] Figure 6 A flowchart illustrating a method for determining whether to transmit a first wireless signal on a first time-frequency resource, according to an embodiment of this application, is shown.

[0140] Figure 7 A schematic diagram of multiple time windows according to one embodiment of this application is shown;

[0141] Figure 8 A schematic diagram of a time window consisting of multiple time slots according to an embodiment of this application is shown;

[0142] Figure 9 A schematic diagram of multiple time-frequency resource pools belonging to the same sub-band according to an embodiment of this application is shown;

[0143] Figure 10 A schematic diagram of multiple time-frequency resource pools belonging to different sub-bands according to an embodiment of this application is shown;

[0144] Figure 11 A schematic diagram of multiple time-frequency resource pools within the same time window according to an embodiment of this application is shown;

[0145] Figure 12 A schematic diagram of first feedback information according to an embodiment of this application is shown;

[0146] Figure 13 A schematic diagram of a given control signaling according to an embodiment of this application is shown;

[0147] Figure 14 A schematic diagram of a first control signaling according to an embodiment of this application is shown;

[0148] Figure 15 A schematic diagram illustrating the relationship between the first antenna port set and the spatial reception parameters corresponding to the Q-order energy detection according to an embodiment of this application is shown.

[0149] Figure 16 A structural block diagram of a processing apparatus in a user equipment according to an embodiment of this application is shown;

[0150] Figure 17 A structural block diagram of a processing apparatus in a base station device according to an embodiment of the present application is shown.

[0151] Example 1

[0152] Example 1 illustrates the processing flowchart on the user equipment side, as shown in the attached diagram. Figure 1 As shown.

[0153] In Embodiment 1, the user equipment receives Q control signaling groups in Q time windows, and receives a first control signaling, wherein each of the Q control signaling groups includes a positive integer number of control signalings, and the first control signaling is used to determine Q1 time windows in the Q time windows; energy detection is performed to determine whether to transmit on the first time-frequency resource; if transmission is performed, a first radio signal is transmitted in the first time-frequency resource; otherwise, the transmission of the first radio signal on the first time-frequency resource is abandoned.

[0154] In Example 1, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows is correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0155] As an example, any control signaling in any control signaling group among the Q control signaling groups is a DCI (Downlink Control Information).

[0156] As an example, the first field includes 2 bits.

[0157] As an example, the first field includes 3 bits.

[0158] As an example, the first field includes 4 bits.

[0159] As an example, any two of the Q time windows are orthogonal.

[0160] As an example, the bit block belongs to a transport block.

[0161] As an example, the bit block is a code block group.

[0162] As one example, the bit block includes multiple bits.

[0163] As an example, there is at least one unoccupied multicarrier symbol between any two time windows in the Q time windows.

[0164] As an example, monitoring of specific types of downlink signaling can be used to determine whether one or more multicarrier symbols are occupied.

[0165] As an example, the specific type of downlink signaling is a DCI identified by CC-RNTI (Common Channel Radio Network Temporary Indentifier).

[0166] As an example, if the specific type of downlink signaling can be detected and the specific type of downlink signaling indicates that the one or more multicarrier symbols are occupied, the user equipment assumes that the one or more multicarrier symbols are occupied; otherwise, the user equipment assumes that the one or more multicarrier symbols are not occupied.

[0167] As an example, the Q1 time windows are the Q1 most recent time windows among the Q time windows.

[0168] As an example, the first multicarrier symbol and the second multicarrier symbol are the earliest and most recent multicarrier symbols in the Q time windows, respectively, and there is no multicarrier symbol that is occupied and outside the Q time windows between the first multicarrier symbol and the second multicarrier symbol.

[0169] As an example, the control signaling in the Q control signaling groups is common to the cell.

[0170] As an example, the control signaling in the Q control signaling groups is specific to the user equipment.

[0171] As an example, the first control signaling is transmitted in the most recent of the Q time windows.

[0172] As an example, the first wireless signal is transmitted over a physical layer data channel.

[0173] As an example, the physical layer data channel refers to a physical layer channel capable of carrying physical layer data.

[0174] As an example, the physical layer data channel is PUSCH (Physical Uplink Shared Channel).

[0175] As an example, the physical layer data channel is sPUSCH (shorten PUSCH).

[0176] As one embodiment, the first wireless signal is transmitted on the physical layer control channel.

[0177] As an example, the physical layer control channel refers to a physical layer channel that can only carry physical layer control signaling.

[0178] As an example, the physical layer control channel is PUCCH (Physical Uplink Control Channel).

[0179] As an example, the physical layer control channel is sPUCCH (shorten PUCCH).

[0180] As an example, the first control signaling is UL Grant (Uplink Grant) DCI (Downlink Control Information).

[0181] As an example, the first control signaling is DL Grant (Downlink Control Information) DCI (Downlink Control Information).

[0182] As an example, the Q control signaling groups are all transmitted on unlicensed spectrum.

[0183] As an example, all control signaling in any of the Q control signaling groups is transmitted on a single carrier.

[0184] As an example, at least two of the Q control signaling groups are transmitted on two different carriers.

[0185] As an example, all control signaling in any of the Q control signaling groups is transmitted on a serving cell.

[0186] As an example, at least two of the Q control signaling groups are transmitted on two different serving cells.

[0187] As an example, the first time-frequency resource includes multiple REs (Resource Elements), each RE occupying one multi-carrier symbol in the time domain and one subcarrier in the frequency domain.

[0188] Example 2

[0189] Example 2 illustrates a schematic diagram of the network architecture, as shown in the attached diagram. Figure 2 As shown.

[0190] Appendix Figure 2This describes the network architecture 200 for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The LTE network architecture 200 can be referred to as EPS (Evolved Packet System) 200. EPS 200 may include one or more UEs (User Equipment) 201, E-UTRAN-NR (Evolved UMTS Terrestrial Radio Access Network - New Radio) 202, 5G-CN (5G-Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and Internet services 230. UMTS corresponds to Universal Mobile Telecommunications System. EPS 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. (See attached...) Figure 2As shown, EPS200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. E-UTRAN-NR202 includes NR (New Radio) node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination to UE201. gNB 203 can connect to other gNBs 204 via an X2 interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver point), or some other suitable term. gNB 203 provides UE201 with access to 5G-CN / EPC210. Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. The gNB203 connects to the 5G-CN / EPC210 via the S1 interface. The 5G-CN / EPC210 includes an MME 211, other MMEs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet Data Network Gateway) 213. The MME 211 is the control node handling signaling between the UE201 and the 5G-CN / EPC210. ​​Essentially, the MME 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW 212, which is itself connected to the P-GW 213. The P-GW 213 provides UE IP address allocation and other functions. The P-GW 213 connects to Internet services 230. Internet services 230 include operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and PS streaming service (PSS).

[0191] As an example, the UE201 corresponds to the user equipment in this application.

[0192] As an example, the gNB203 corresponds to the base station in this application.

[0193] As a sub-implementation, the UE201 supports wireless communication for data transmission on unlicensed spectrum.

[0194] As a sub-implementation, the gNB203 supports wireless communication for data transmission on unlicensed spectrum.

[0195] As a sub-implementation, the UE201 supports CBG-based HARQ retransmission.

[0196] As a sub-implementation, the gNB203 supports CBG-based HARQ retransmission.

[0197] Example 3

[0198] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane, as shown in the attached diagram. Figure 3 As shown.

[0199] Appendix Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and control plane, with appended... Figure 3The radio protocol architecture for the UE and gNB is illustrated using 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. L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the UE and gNB via PHY301. In the user plane, L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. Although not illustrated, the UE may have several protocol layers above L2 layer 305, including a network layer (e.g., IP layer) terminating at the P-GW213 on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, server, etc.). PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides header compression for upper-layer packets to reduce radio transmission overhead, provides security through packet encryption, and provides handover support between gNBs to the UE. RLC sublayer 303 provides segmentation and reassembly of upper-layer packets, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest). MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among UEs. MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and gNB is largely the same for physical layer 301 and L2 layer 305, but header compression functionality for the control plane is not provided. The control plane also includes the RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3). 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.

[0200] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the user equipment described in this application.

[0201] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the base station equipment described in this application.

[0202] As an example, the DCI in this application is generated in the PHY301.

[0203] As an example, the first control signaling in this application is generated in the PHY301.

[0204] As an example, the first feedback information in this application is generated in the PHY301.

[0205] As an example, the Q control signaling groups in this application are generated in the PHY301.

[0206] As an example, the first control signaling in this application is generated in the MAC sublayer 302.

[0207] As an example, the first control signaling in this application is generated in the RRC sublayer 306.

[0208] As an example, the first control signaling in this application is generated in the MAC sublayer 302.

[0209] As an example, the first control signaling in this application is generated in the RRC sublayer 306.

[0210] Example 4

[0211] Example 4 illustrates a schematic diagram of the NR node and UE, as shown in the attached diagram. Figure 4 As shown. (Attached) Figure 4 This is a block diagram of UE450 and gNB410 communicating with each other in the access network.

[0212] The gNB410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0213] UE450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454, and an antenna 452.

[0214] In the DL (Downlink), at gNB410, upper-layer packets from the core network are provided to controller / processor 475. Controller / processor 475 implements L2 layer functionality. In the DL, controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to UE450 based on various priority metrics. Controller / processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to UE450. Transmit processor 416 and multi-antenna transmit processor 471 implement various signal processing functions for L1 layer (i.e., physical layer). Transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at UE450, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). The multi-antenna transmit processor 471 performs digital spatial precoding / beamforming processing on the encoded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into an RF stream, which is then provided to different antennas 420.

[0215] In the DL (Downlink) phase, at UE 450, each receiver 454 receives signals through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions at Layer 1. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to transform the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for UE 450. The symbols on each spatial stream are demodulated and recovered in the receiver processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted by gNB 410 on the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer packets from the core network. The upper-layer packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing. The controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0216] In the UL (Uplink), at UE450, data source 467 is used to provide upper-layer data packets to controller / processor 459. Data source 467 represents all protocol layers above L2. Similar to the transmission function at gNB410 described in DL, controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation at gNB410, implementing L2 layer functions for the user plane and control plane. Controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to gNB410. Transmit processor 468 performs modulation mapping and channel coding processing, multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding / beamforming processing, and then transmit processor 468 modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream, which is then subjected to analog precoding / beamforming operations in multi-antenna transmit processor 457 before being provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmitter processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0217] In the UL (Uplink), the function at gNB410 is similar to the receiving function at UE450 as described in DL. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiver processor 472 and receiver processor 470. Receiver processor 470 and multi-antenna receiver processor 472 jointly implement the L1 layer functions. Controller / processor 475 implements L2 layer functions. Controller / processor 475 may be associated with memory 476 storing program code and data. Memory 476 may be referred to as computer-readable media. In the UL, controller / processor 475 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer data packets from UE450. Upper-layer data packets from controller / processor 475 can be provided to the core network. Controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0218] As one embodiment, the UE450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The UE450 device at least: receives, in each of the Q time windows of this application, the Q control signaling groups of this application, each of the Q control signaling groups including a positive integer number of control signalings; receives the first control signaling of this application, the first control signaling being used to determine Q1 time windows among the Q time windows; performs the energy detection of this application to determine whether to transmit on the first time-frequency resource of this application; if transmission is performed, transmits the first radio signal of this application on the first time-frequency resource; otherwise, abandons the transmission of the first radio signal of this application on the first time-frequency resource.

[0219] As one embodiment, the UE450 includes: a memory storing a computer-readable instruction program, which, when executed by at least one processor, generates actions including: receiving, in each of the Q time windows of this application, the Q control signaling groups of this application, each of the Q control signaling groups including a positive integer number of control signalings; receiving the first control signaling of this application, the first control signaling being used to determine Q1 time windows among the Q time windows; performing the energy detection of this application to determine whether to transmit on the first time-frequency resource of this application; if transmitting, transmitting the first radio signal of this application on the first time-frequency resource, otherwise abandoning the transmission of the first radio signal of this application on the first time-frequency resource.

[0220] As one embodiment, the UE450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The UE450 device receives at least: the Q radio signal groups of this application in the Q time windows respectively.

[0221] As one embodiment, the UE450 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: receiving the Q groups of wireless signals in the present application in the Q time windows respectively.

[0222] As one embodiment, the gNB410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The gNB410 device at least: transmits the Q control signaling groups of this application in the Q time windows respectively; transmits the first control signaling of this application; and monitors the first radio signal of this application on the first time-frequency resource of this application.

[0223] As one embodiment, the gNB410 includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: transmitting the Q control signaling groups of the present application in the Q time windows respectively; transmitting the first control signaling of the present application; and monitoring the first radio signal of the present application on the first time-frequency resource of the present application.

[0224] As one embodiment, the gNB410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The gNB410 device at least transmits the Q wireless signal groups of this application in the Q time windows respectively.

[0225] As one embodiment, the gNB410 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: transmitting the Q wireless signal groups of the present application in the Q time windows respectively.

[0226] As an example, the UE450 corresponds to the user equipment in this application.

[0227] As an example, the gNB410 corresponds to the base station in this application.

[0228] As an example, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, and the controller / processor 459} is used to receive the Q control signaling groups and the first control signaling in this application; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, and the controller / processor 475} is used to transmit the Q control signaling groups and the first control signaling in this application.

[0229] As an example, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, and the controller / processor 475} is used to receive the first wireless signal in this application; at least one of {the antenna 452, the transmitter 454, the transmitting processor 468, the multi-antenna transmitting processor 457, and the controller / processor 459} is used to transmit the first wireless signal in this application.

[0230] As one embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, and the controller / processor 475} is used to transmit the Q wireless signal groups in this application; at least one of {the antenna 452, the transmitter 454, the transmitting processor 468, the multi-antenna transmitting processor 457, and the controller / processor 459} is used to receive the Q wireless signal groups in this application.

[0231] As an example, at least one of {the antenna 452, the receiver 454, the receiver processor 456, the multi-antenna receiver processor 458, and the controller / processor 459} is used to receive the energy detection described in this application.

[0232] Example 5

[0233] Example 5 illustrates a flowchart of wireless transmission, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In this context, base station N1 is the serving cell sustaining base station for user equipment U2.

[0234] For N1, in step S11, Q control signaling groups are sent in Q time windows respectively, and Q radio signal groups are sent in Q time windows respectively; in step S12, the first control signaling is sent; in step S13, the first radio signal is monitored;

[0235] For U2, in step S21, Q control signaling groups are received in Q time windows respectively, and Q radio signal groups are received in Q time windows respectively; in step S22, a first control signaling is received; in step S23, energy detection is performed to determine whether to transmit on the first time-frequency resource; according to the result of the energy detection, a first radio signal is transmitted in the first time-frequency resource, otherwise the transmission of the first radio signal on the first time-frequency resource is abandoned;

[0236] In Example 5, any one of the Q control signaling groups includes a positive integer number of control signaling orders; the first control signaling order is used to determine Q1 time windows among the Q time windows; any two time windows among the Q time windows are orthogonal in the time domain; each control signaling order among the Q control signaling groups includes a first field; for any one of the Q control signaling groups, the values ​​of the first field of all control signaling orders are the same; for any Q2 adjacent control signaling groups among the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to... Determine whether the bit blocks transmitted in the Q1 time windows are correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q; each of the Q wireless signal groups includes Q bit block groups, each bit block group in the Q bit block groups includes a positive integer number of bit blocks, and each wireless signal group in the Q wireless signal groups includes a positive integer number of wireless signals, with each positive integer number of wireless signals corresponding one-to-one with the bit blocks in the corresponding bit block group; the bit blocks transmitted in the Q1 time windows include Q1 bit block groups in the Q bit block groups, and each Q1 bit block group is transmitted in the Q1 time windows.

[0237] As an example, any bit block in the Q bit block group belongs to a TB (Transport Block).

[0238] As an example, any bit block in the Q bit block groups belongs to a CBG (Code Block Group).

[0239] As an example, any bit block in the Q bit block group includes one and only one CBG.

[0240] As an example, any bit block in the Q bit block group includes only all or part of the bits in a TB.

[0241] As an example, any one of the Q wireless signal groups is the output of the corresponding bit block after being sequentially processed by channel coding, scrambling, modulation mapper, layer mapper, precoding, resource element mapper, and wideband symbol generation.

[0242] As an example, any one of the Q wireless signal groups is the output of a corresponding bit block after sequentially passing through channel coding, scrambling, modulation mapper, layer mapper, transform precoder (used to generate complex numerical signals), precoding, resource particle mapper, and broadband symbol generation.

[0243] As an example, the control signaling in the Q control signaling groups is common to the cell.

[0244] As an example, the control signaling in the Q control signaling groups is identified by CC-RNTI.

[0245] As an example, the Q control signaling groups correspond one-to-one with the Q radio signaling groups, and all control signaling in any control signaling group corresponds one-to-one with all radio signals in the corresponding radio signaling group.

[0246] As an example, any control signaling in the Q control signaling groups includes configuration information of the corresponding radio signal, and the configuration information includes at least one of MCS, RV, and NDI.

[0247] As an example, any one of the Q control signaling groups is the ULGrant (Uplink Grant) DCI of the corresponding radio signal.

[0248] As an example, any control signaling in the Q control signaling groups and the corresponding radio signal are transmitted in the same time slot on the same carrier, and the time slot includes a positive integer number of multi-carrier symbols.

[0249] As one example, the time slot includes 14 consecutive multicarrier symbols.

[0250] As an example, the time slot corresponds to the time domain resources occupied by a PRB (Physical Resource Block).

[0251] Example 6

[0252] Example 6 illustrates a flowchart for determining whether to transmit a first wireless signal on a first time-frequency resource, as shown in the attached diagram. Figure 6 As shown.

[0253] In Embodiment 6, the user equipment performs energy detection in step S101 to determine whether to transmit on the first time-frequency resource; if yes, the user equipment transmits the first radio signal on the first time-frequency resource in step S102; otherwise, it jumps to the end (i.e., abandons the transmission of the first radio signal on the first time-frequency resource).

[0254] As an example, the energy detection includes T measurements, each of which is used to determine whether T given time-frequency resources are occupied. If the number of unoccupied given time-frequency resources among the T given time-frequency resources is greater than T1, the user equipment determines to transmit on the first time-frequency resource; otherwise, the user equipment determines not to transmit on the first time-frequency resource. T is a positive integer, and T1 is a positive integer not greater than T.

[0255] As an example, any two of the T given time-frequency resources are orthogonal (i.e., do not overlap) in the time domain, and all T given time-frequency resources precede the first time-frequency resource.

[0256] As an example, T is configured by the base station.

[0257] As an example, the energy detection corresponds to LBT of Category 4.

[0258] As an example, the energy detection corresponds to LBT of Category 2.

[0259] Example 7

[0260] Example 7 illustrates a schematic diagram of multiple time windows, as shown in the attached diagram. Figure 7 As shown.

[0261] In embodiment 7, the time windows {#0, #1, #2, ..., #(Q-1)} are the Q time windows in this application, and any one of the Q time windows includes a positive integer number of multicarrier symbols.

[0262] As an example, the first control signaling in this application is transmitted within a first time window, where the first time window is an appendix. Figure 7 In the time window #Q, the first control signaling is used to determine at least the first time-frequency resource in the configuration information of the first time-frequency resource and the first radio signal, the configuration information including at least one of modulation and coding state, redundancy version, new data indication and a set of receive parameters.

[0263] As an example, the first control signaling in this application is transmitted within a first time window, where the first time window is an appendix. Figure 7 In the time window #(Q-1), the first control signaling is used to determine at least the first time-frequency resource in the configuration information of the first time-frequency resource and the first radio signal, the configuration information including at least one of modulation and coding state, redundancy version, new data indication and a set of receive parameters.

[0264] As an example, the first control signaling indicates Q1, and the Q1 time windows in this application are the Q1 most recent time windows among the Q time windows, that is, time windows {#(Q-Q1), #(Q-Q1+1), #(Q-Q1+2), ..., #(Q-1)}.

[0265] As an example, the Q time windows each correspond to a Q downlink burst.

[0266] As an example, at least two multicarrier symbols in the Q time windows correspond to different subcarrier spacings.

[0267] As an example, at least one of the Q time windows includes multiple carrier symbols with different subcarrier spacings.

[0268] As an example, on any carrier occupied by the Q wireless signal groups in this application, there is no multicarrier symbol occupied by the transmitter of the Q wireless signal groups between time window #0 and time window #(Q-1) and outside the Q time windows.

[0269] As an example, the transmitter of the Q wireless signal groups in this application occupies all the multicarrier symbols in the Q time windows.

[0270] As an example, the transmitters of the Q wireless signal groups in this application perform LBTs before the Q time windows to determine when to transmit within the Q time windows.

[0271] As an example, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0272] As an example, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0273] As an example, the multicarrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0274] As an example, the multi-carrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.

[0275] As one embodiment, the multicarrier symbol includes CP (Cyclic Prefix).

[0276] As an example, the first control signaling in this application is transmitted in a first time window, and the first control signaling includes a second field, which is used to determine at least one of the following:

[0277] - First parameter: According to the order of the addition of the serving cell index first and the order of the addition of the physical downlink control channel monitoring timing index second, the serving cell-physical downlink control channel monitoring timing pair accumulated in the first time window up to the current serving cell and the current physical downlink control channel monitoring timing, including downlink control information in the target format;

[0278] - Second parameter: The total number of serving cell-physical downlink control channel monitoring time pairs, including downlink control information in target format, up to the current physical downlink control channel monitoring time in the first time window.

[0279] As an example, each of the Q time windows includes at least one of the physical downlink control channel monitoring opportunities.

[0280] As an example, the physical downlink control channel monitoring timing includes a positive integer number of multicarrier symbols in the time domain and at least one serving cell in the frequency domain.

[0281] As an example, the second field in the first control signaling indicates at least one of {the remainder obtained by dividing the first parameter by W1, and the remainder obtained by dividing the second parameter by W2}, where W1 and W2 are both positive integers greater than 1.

[0282] As an example, W1 and W2 are equal.

[0283] As an example, both W1 and W2 are 4.

[0284] Example 8

[0285] Example 8 illustrates a schematic diagram of a time window consisting of multiple time slots, as shown in the attached diagram. Figure 8 As shown.

[0286] In Example 8, the time window #i consists of L time slots, where L is a positive integer, and the L time slots correspond to the attached... Figure 8The time slots are {#i_1, #i_2, ..., #i_L}, and any one of the L time slots includes a positive integer number of multicarrier symbols.

[0287] As an example, the number of multicarrier symbols included in all of the L time slots is equal.

[0288] As an example, the number of multicarrier symbols included in each of the L time slots is 14.

[0289] As an example, all time slots except for the two end time slots (i.e., time slots #i_1 and #i_L) contain the same number of multicarrier symbols.

[0290] As an example, the number of multicarrier symbols included in all time slots except for the time slots at both ends (i.e., time slots #i_1 and #i_L) is 14.

[0291] As an example, the time window #i is any one of the Q time windows in this application.

[0292] As an example, the control signaling group in this application corresponding to the time window #i includes L2 control signaling messages, which are transmitted in L2 time slots of the L time slots respectively, and L2 is a positive integer not greater than L.

[0293] As an example, L2 is equal to L.

[0294] As an example, L2 is equal to L, and the L2 control signaling signals respectively indicate the number of multi-carrier symbols occupied in the L time slots.

[0295] As a sub-implementation of the above embodiment, the L2 control signaling is common to the cell.

[0296] As a sub-example of the above embodiment, the L2 control signaling is identified by CC-RNTI (Cell Common RNTI).

[0297] As an example, the wireless signal group in this application corresponding to the time window #i includes L3 wireless signals, which are transmitted in L3 time slots of the L time slots respectively, and L3 is a positive integer not greater than L.

[0298] As an example, L2 is equal to L3, and the L2 control signaling is the scheduling signaling for the L3 wireless signals.

[0299] As a sub-implementation of the above embodiments, the L2 control signaling is specific to the user equipment.

[0300] As a sub-implementation of the above embodiments, the L2 control signaling is identified by C-RNTI (Cell RNTI).

[0301] As an example, each of the L time slots includes at least one physical downlink control channel monitoring opportunity as described in this application.

[0302] As an example, a time slot includes a positive integer number of multicarrier symbols.

[0303] As an example, the physical downlink control channel monitoring timing described in this application is a portion of a CoReset (Control Resource Set) falling within a time slot.

[0304] As an example, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0305] As an example, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0306] As an example, the multicarrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0307] As an example, the multi-carrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.

[0308] As one embodiment, the multicarrier symbol includes CP (Cyclic Prefix).

[0309] Example 9

[0310] Example 9 illustrates a schematic diagram of multiple time-frequency resource pools belonging to the same sub-frequency band; as shown in the attached diagram. Figure 9 As shown.

[0311] In Example 9, the time-frequency resource pools {#0, #1, ..., #(Q-1)} belong to the time window {#0, #1, ..., #(Q-1)} in the time domain, and the time-frequency resource pools {#0, #1, ..., #(Q-1)} all belong to the first sub-frequency band in the frequency domain.

[0312] In Embodiment 9, the Q control signaling groups in this application are transmitted in the time-frequency resource pool {#0, #1, ..., #(Q-1)}, and the Q radio signal groups in this application are also transmitted in the time-frequency resource pool {#0, #1, ..., #(Q-1)}.

[0313] As an example, the first sub-band is deployed in unlicensed spectrum.

[0314] As an example, the first sub-band is a carrier wave.

[0315] As an example, the first sub-band is a BWP (BandWidth Part).

[0316] As an example, the first sub-frequency band is the frequency domain resource occupied by a serving cell.

[0317] As an example, the first time-frequency resource in this application is located in the appendix. Figure 9 In the time-frequency resource pool #Q.

[0318] As an example, the first control signaling in this application is attached... Figure 9 It is sent to the time-frequency resource pool #Q.

[0319] As an example, the user equipment in this application performs LBT in the time-frequency resource pool {#0, #1, ..., #(Q-1)} to determine that it cannot send uplink HARQ-ACK in the time-frequency resource sub-pool {#0, #1, ..., #(Q-1)}, and the time-frequency resource sub-pool {#0, #1, ..., #(Q-1)} belongs to the time-frequency resource pool {#0, #1, ..., #(Q-1)}.

[0320] Example 10

[0321] Example 10 illustrates a schematic diagram of multiple time-frequency resource pools belonging to different sub-frequency bands, as shown in the attached diagram. Figure 10 As shown.

[0322] In Example 10, the time-frequency resource pool {#0, #1, ..., #(Q-1)} belongs to the time window {#0, #1, ..., #(Q-1)} in the time domain, and the time-frequency resource pool {#0, #1, ..., #(Q-1)} occupies multiple sub-frequency bands in the frequency domain, and the multiple sub-frequency bands include at least the sub-frequency band {#0, #1, #2}.

[0323] In Embodiment 9, the Q control signaling groups in this application are transmitted in the time-frequency resource pool {#0, #1, ..., #(Q-1)}, and the Q radio signal groups in this application are also transmitted in the time-frequency resource pool {#0, #1, ..., #(Q-1)}.

[0324] As an example, sub-bands {#0, #1, #2} are all deployed in unlicensed spectrum.

[0325] As one embodiment, the sub-bands {#0, #1, #2} are each a carrier wave.

[0326] As an example, the sub-bands {#0, #1, #2} are each a BWP (BandWidth Part).

[0327] Example 11

[0328] Example 11 illustrates a schematic diagram of multiple time-frequency resource pools within the same time window, as shown in the attached diagram. Figure 11 As shown.

[0329] In embodiment 11, time window #j is a given time window among the Q time windows in this application. The wireless signal group corresponding to time window #j among the Q wireless signal groups in this application includes three wireless signal subgroups: a first wireless signal subgroup, a second wireless signal subgroup, and a third wireless signal subgroup. Each of the three wireless signal subgroups includes a positive integer number of wireless signals. The first wireless signal subgroup, the second wireless signal subgroup, and the third wireless signal subgroup are respectively located in the appendix... Figure 11 Transmission is performed in time-frequency resource pools #j_0, #j_1, and #j_2; these time-frequency resource pools #j_0, #j_1, and #j_2 belong to three sub-frequency bands in the frequency domain.

[0330] As an example, all three sub-bands are deployed in unlicensed spectrum.

[0331] As an embodiment, the control signaling group corresponding to the time window #j among the Q control signaling groups in this application includes three control signaling subgroups, namely a first control signaling subgroup, a second control signaling subgroup, and a third control signaling subgroup, each of which includes a positive integer number of control signals. The first control signaling subgroup, the second control signaling subgroup, and the third control signaling subgroup are respectively located in the appendix... Figure 11 Transmission is performed in time-frequency resource pools #j_0, #j_1, and #j_2; these time-frequency resource pools #j_0, #j_1, and #j_2 belong to three sub-frequency bands in the frequency domain.

[0332] As one example, the three sub-frequency bands correspond to three serving cells respectively.

[0333] As an example, the first control signaling in this application is transmitted in a first time window, and the first control signaling includes a second field, which is used to determine at least one of the following:

[0334] - First parameter: According to the order of the addition of the serving cell index first and the order of the addition of the physical downlink control channel monitoring timing index second, the serving cell-physical downlink control channel monitoring timing pair accumulated in the first time window up to the current serving cell and the current physical downlink control channel monitoring timing, including downlink control information in the target format;

[0335] - Second parameter: The total number of serving cell-physical downlink control channel monitoring time pairs, including downlink control information in target format, up to the current physical downlink control channel monitoring time in the first time window.

[0336] As an example, the physical downlink control channel monitoring timing includes a positive integer number of multicarrier symbols in the time domain and at least one serving cell in the frequency domain.

[0337] As an example, the physical downlink control channel monitoring timing in the time window #j includes a positive integer number of multicarrier symbols in the time domain and the three serving cells in the frequency domain.

[0338] As an example, the second field in the first control signaling indicates at least one of {the remainder obtained by dividing the first parameter by W1, and the remainder obtained by dividing the second parameter by W2}, where W1 and W2 are both positive integers greater than 1.

[0339] As an example, W1 and W2 are equal.

[0340] As an example, both W1 and W2 are 4.

[0341] Example 12

[0342] Example 12 illustrates a schematic diagram of the first feedback information, as shown in the attached diagram. Figure 12 As shown.

[0343] In Example 12, the first feedback information includes Q1 domains, namely, appended... Figure 12 The fields {#0, #1, #2, ..., #(Q1-1)} in the application are Q1 fields that correspond one-to-one with the Q1 time windows in this application. Each of the Q1 fields is used to determine whether the bit block transmitted in the corresponding time window has been correctly decoded.

[0344] As an example, the number of bits in each of the Q1 fields is the same.

[0345] As an example, the first control signaling indicates the number of bits in each of the Q1 fields.

[0346] As an example, at least two of the Q1 fields have different numbers of bits.

[0347] As an example, a given field in the Q1 fields consists of two bits. If the number of bit blocks transmitted in the corresponding time window does not exceed 2, each bit block in the bit blocks transmitted in the corresponding time window is indicated by a bit in the given field whether it has been correctly decoded; otherwise, at least two bit blocks in the bit blocks transmitted in the corresponding time window are indicated by a bit in the given field whether they have been correctly decoded in a bundled manner.

[0348] Example 13

[0349] Example 13 illustrates a schematic diagram of a given control signaling, as shown in the attached diagram. Figure 13 As shown.

[0350] In Example 13, the given control signaling includes a first field, and the value of the first field in the given signaling is equal to the remainder obtained by dividing the index of the time window corresponding to the given control signaling by Q2, where Q2 is a positive integer greater than 1.

[0351] As an example, Q2 is 4.

[0352] As an example, the given control signaling is any one of the Q control signaling groups in this application, and the first field value of all control signaling in any one of the Q control signaling groups is the same, which is equal to the remainder of the index of the time window corresponding to any one control signaling group divided by Q2.

[0353] As an example, the indices of the Q time windows are 0, 1, 2, ..., Q-1.

[0354] As an example, the given control signaling is the first control signaling in this application.

[0355] As an example, the appendix Figure 13 Other fields in the table indicate the multicarrier symbols that are occupied in the corresponding time slot.

[0356] As an example, the appendix Figure 13 Other fields in the code indicate the configuration information for the corresponding wireless signal.

[0357] Example 14

[0358] Example 14 illustrates a schematic diagram of the first control signaling, as shown in the attached diagram. Figure 14 As shown.

[0359] In embodiment 14, the first control signaling includes at least the second domain and other domains among the first domain, second domain, third domain and other domains.

[0360] Other fields in the first control signaling indicate the first time-frequency resource in this application.

[0361] The first control signaling is transmitted in a first time window, and the second field in the first control signaling is used to determine at least one of the following:

[0362] - First parameter: The first parameter is determined as follows: Initialize the first counter to zero; First, in chronological order, for each PDCCH Occasion in the first PDCCH Occasion set, then in ascending order of serving cell index, traverse all serving cell-PDCCH Occasion pairs in the first time window until the serving cell-PDCCH Occasion pair to which the first control signaling belongs; If a serving cell-PDCCH Occasion pair includes the target format DCI, increment the first counter by 1; The first parameter is equal to the value of the first counter after the traversal is completed.

[0363] - Second parameter: The second parameter is determined as follows: Initialize the second counter to zero; First, in chronological order, for each PDCCH Occasion in the first PDCCH Occasion set, then in ascending order of serving cell index, traverse all serving cell-PDCCH Occasion pairs in the first time window until all serving cells in the PDCCH Occasion to which the first control signaling belongs; If a serving cell-PDCCH Occasion pair includes the target format DCI, increment the second counter by 1; The second parameter is equal to the value of the second counter after the traversal is completed.

[0364] As an example, the first control signaling includes a first field, which is used to index the first time window.

[0365] As an example, other fields in the first control signaling indicate configuration information of the first wireless signal in this application.

[0366] As an example, the first control signaling includes a third field, which indicates the Q1 in this application.

[0367] Example 15

[0368] Example 15 illustrates a structural block diagram of a processing device in a user equipment, as shown in the attached diagram. Figure 15 As shown. In Embodiment 15, the user equipment 1500 includes a first receiving module 1501 and a first transmitting module 1502.

[0369] The first receiving module 1501 receives Q control signaling groups in Q time windows, each of the Q control signaling groups including a positive integer number of control signalings; and receives a first control signaling, which is used to determine Q1 time windows in the Q time windows;

[0370] The first transmitting module 1502 performs energy detection to determine whether to transmit on the first time-frequency resource; if transmission is performed, the first wireless signal is transmitted in the first time-frequency resource; otherwise, the transmission of the first wireless signal on the first time-frequency resource is abandoned.

[0371] In Example 15, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows is correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0372] In one embodiment, the first transmitting module 1502 receives Q wireless signal groups in Q time windows, each of the Q wireless signal groups comprising Q bit block groups. Each of the Q bit block groups comprises a positive integer number of bit blocks, and each of the Q wireless signal groups comprises a positive integer number of wireless signals. The positive integer number of wireless signals corresponds one-to-one with the bit blocks in the corresponding bit block group. The bit blocks transmitted in the Q1 time windows include Q1 bit block groups from the Q bit block groups, and the Q1 bit block groups are transmitted in the Q1 time windows respectively.

[0373] As one embodiment, the first receiving module 1501 includes an attached... Figure 4 The antenna 452 and the receiver 454 are mentioned.

[0374] As one embodiment, the first receiving module 1501 includes an attached... Figure 4 The multi-antenna receiver processor 458 and the receiver processor 456 are mentioned in the text.

[0375] As one embodiment, the first receiving module 1501 includes an attached... Figure 4 The memory 460 in it.

[0376] As one embodiment, the first receiving module 1501 includes an attached... Figure 4 The controller / processor 459 mentioned above.

[0377] As one embodiment, the first sending module 1502 includes an appendix. Figure 4 The antenna 452 and the transmitter 454 are mentioned.

[0378] As one embodiment, the first sending module 1502 includes an appendix. Figure 4 The multi-antenna transmitter processor 457 and the transmitter processor 468 are mentioned in the text.

[0379] As one embodiment, the first sending module 1502 includes an appendix. Figure 4 The data source 467 mentioned in the text.

[0380] As one embodiment, the first sending module 1502 includes an appendix. Figure 4 The controller / processor 459 mentioned above.

[0381] Example 16

[0382] Example 16 illustrates a structural block diagram of a processing device in a base station device, as shown in the attached diagram. Figure 16 As shown. In Embodiment 16, the base station device 1600 includes a second transmitting module 1601 and a second receiving module 1602.

[0383] The second sending module 1601 sends Q control signaling groups in Q time windows, each of the Q control signaling groups including a positive integer number of control signalings; and sends a first control signaling, which is used to determine Q1 time windows in the Q time windows;

[0384] The second receiving module 1602 monitors the first wireless signal on the first time-frequency resource;

[0385] In Example 16, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values ​​of the first field of all control signaling are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values ​​of the first field included in any two control signaling groups are different; the first radio signal includes first feedback information, which is used to determine whether the bit block transmitted in the Q1 time windows is correctly decoded, where Q is a positive integer greater than 1, and Q1 and Q2 are positive integers not greater than Q.

[0386] The second transmitting module 1601 transmits Q wireless signal groups in Q time windows, each of the Q wireless signal groups comprising Q bit block groups. Each of the Q bit block groups comprises a positive integer number of bit blocks, and each of the Q wireless signal groups comprises a positive integer number of wireless signals. The positive integer number of wireless signals corresponds one-to-one with the bit blocks in the corresponding bit block group. The bit blocks transmitted in the Q1 time windows include Q1 bit block groups from the Q bit block groups, and the Q1 bit block groups are transmitted in the Q1 time windows respectively.

[0387] As one embodiment, the second sending module 1601 includes an appendix. Figure 4 The antenna 420 and the transmitter 418 are mentioned.

[0388] As one embodiment, the second sending module 1601 includes an appendix. Figure 4 The multi-antenna transmitter processor 471 and the transmitter processor 416 are mentioned in the text.

[0389] As one embodiment, the second sending module 1601 includes an appendix. Figure 4 The controller / processor 475 mentioned above.

[0390] As one embodiment, the second receiving module 1602 includes an appendix. Figure 4 The antenna 420 and the receiver 418 are mentioned.

[0391] As one embodiment, the second receiving module 1602 includes an appendix. Figure 4 The multi-antenna receiver processor 472 and the receiver processor 470 are mentioned in the text.

[0392] As one embodiment, the second receiving module 1602 includes an appendix. Figure 4 The memory 476 in it.

[0393] As one embodiment, the second receiving module 1602 includes an appendix. Figure 4 The controller / processor 475 mentioned above.

[0394] Example 17

[0395] Example 17 illustrates a flowchart for determining whether to transmit a first wireless signal on a first time-frequency resource, as shown in the attached diagram. Figure 17 As shown, the steps in box F1 are optional.

[0396] In Example 17, the user equipment performs R measurements in R time sub-pools. The energy detection described in this application includes these R measurements.

[0397] The user equipment performs R measurements in the R time sub-pools and obtains R measurement power values. R1 of the R measurement power values ​​are all below a specific threshold. The R1 time sub-pools are the time sub-pools among the R time sub-pools that correspond to the R1 measurement power values, respectively. The process of the R measurements can be performed by an auxiliary... Figure 17 The flowchart in the document describes this process.

[0398] In step S1101, the user equipment is in an idle state. In step S1102, it is determined whether transmission is required. In step S1103, energy detection is performed within a deferral period. In step S1104, it is determined whether all time slots within this deferral period are idle. If so, proceed to step S1105 to transmit the first wireless signal; otherwise, proceed to step S1106 to perform energy detection within a deferral period. In step S1107, it is determined whether all time slots within this deferral period are idle. If so, proceed to step S1108 to set the first counter equal to R1; otherwise, return to step S1106. In step S1109, it is determined whether the first counter is 0. If so, proceed to step S1108. In step S1105, send the first wireless signal; otherwise, proceed to step S1110 to perform energy detection within an additional time slot. In step S1111, determine whether this additional time slot is idle. If yes, proceed to step S1112 to decrement the first counter by 1, and then return to step S1109; otherwise, proceed to step S1113 to perform energy detection within an additional delay period. In step S1114, determine whether all time slots within this additional delay period are idle. If yes, proceed to step S1112; otherwise, return to step S1113.

[0399] As an example, R1 equals 0, and the first node determines in step S1104 that all time slots within this delay period are idle.

[0400] As an example, the units of the R measured power values ​​and the specific threshold are both dBm (millidodecibels).

[0401] As an example, the units of the R measured power values ​​and the specific threshold are both milliwatts (mW).

[0402] As an example, the units of the R measured power values ​​and the specific threshold are both joules.

[0403] As an example, the specific threshold is equal to or less than -72dBm.

[0404] As an example, the R time sub-pools have the same duration.

[0405] As an example, the duration of any one of the R time sub-pools does not exceed 25 microseconds.

[0406] As an example, the duration of any one of the R time sub-pools does not exceed 34 microseconds.

[0407] As an example, the duration of any one of the R time sub-pools does not exceed 9 microseconds.

[0408] As an example, the duration of any one of the R time sub-pools does not exceed 16 microseconds.

[0409] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first type of communication node device or UE or terminal in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled airplanes, and other wireless communication devices. The second type of communication node device or base station or network-side device in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmit / receive nodes (TRPs), relay satellites, satellite base stations, airborne base stations, and other wireless communication devices.

[0410] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method in a user equipment used for wireless communication, characterized by, Comprising: receiving Q groups of control signaling respectively in Q time windows, any group of the Q groups of control signaling comprising a positive integer of control signaling; receiving a first control signaling, the first control signaling being used to determine Q1 time windows of the Q time windows; performing energy detection to determine whether to transmit on a first time-frequency resource; if yes, transmitting a first wireless signal in the first time-frequency resource, otherwise, giving up transmitting the first wireless signal in the first time-frequency resource; wherein, any two of the Q time windows are orthogonal in time domain; any control signaling of the Q groups of control signaling comprises a first field; for any group of the Q groups of control signaling, the values of the first fields of all the control signaling in the group are the same; for any Q2 adjacent groups of the Q groups of control signaling, the values of the first fields comprised by any two of the groups are different; the first wireless signal comprises first feedback information, the first feedback information being used to determine whether a block of bits transmitted in the Q1 time windows is correctly decoded, the Q being a positive integer greater than 1, the Q1 and the Q2 being respectively positive integers not greater than the Q; the first wireless signal is transmitted on PUCCH or PUSCH, any control signaling in any group of the Q groups of control signaling being a downlink control information DCI, the first control signaling being received after the Q time windows.

2. The method of claim 1, wherein, Comprising: receiving Q groups of wireless signals respectively in Q time windows, the Q groups of wireless signals respectively comprising Q groups of blocks of bits, any group of the Q groups of blocks of bits comprising a positive integer of blocks of bits, any group of the Q groups of wireless signals comprising a positive integer of wireless signals, the positive integer of wireless signals corresponding to the blocks of bits in the corresponding group of blocks of bits one by one; wherein, the blocks of bits transmitted in the Q1 time windows comprise Q1 groups of blocks of bits of the Q groups of blocks of bits, the Q1 groups of blocks of bits being respectively transmitted in the Q1 time windows.

3. The method according to claim 1 or 2, characterized in that, The first control signaling is used to determine the first time-frequency resource.

4. The method according to any one of claims 1 to 3, characterized in that, The first control signaling is a downlink grant DCI.

5. The method according to any one of claims 1 to 3, characterized in that, The first feedback information comprises Q1 fields, the number of bits of each of the Q1 fields being the same, the Q1 fields corresponding to the Q1 time windows one by one, each of the Q1 fields being used to determine whether a block of bits transmitted in the corresponding time window is correctly decoded.

6. The method of any of claims 1, 2, 3, 5, wherein, The first feedback information comprises Q1 fields, the Q1 fields corresponding to the Q1 time windows one by one, each of the Q1 fields being used to determine whether a block of bits transmitted in the corresponding time window is correctly decoded, the first control signaling being used to determine the number of bits of each of the Q1 fields.

7. The method according to any one of claims 1 to 6, characterized in that, The first control signaling is transmitted in a first time window, the first control signaling comprising a second field, the second field in the first control signaling being used to determine: In an ascending order of a serving cell index first and an ascending order of a physical downlink control channel monitoring occasion index second, a serving cell-physical downlink control channel monitoring occasion pair in the first time window, which includes a downlink control information of a target format, accumulated up to a current serving cell and a current physical downlink control channel monitoring occasion; And / or, A total number of serving cell-physical downlink control channel monitoring occasion pairs in the first time window, which includes a downlink control information of a target format, up to a current physical downlink control channel monitoring occasion.

8. A method in a base station used for wireless communication, characterized by, Comprise: Transmitting Q control signaling groups in Q time windows respectively, any control signaling group in the Q control signaling groups comprising a positive integer of control signaling; Transmitting a first control signaling, the first control signaling being used to determine Q1 time windows in the Q time windows; Monitoring a first wireless signal on a first time-frequency resource; Wherein, any two time windows in the Q time windows are orthogonal in time domain; any control signaling in the Q control signaling groups comprises a first field; for any control signaling group in the Q control signaling groups, the values of the first fields of all control signaling in the control signaling group are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values of the first fields comprised by any two control signaling groups are different; the first wireless signal comprises first feedback information, the first feedback information being used to determine whether a bit block transmitted in the Q1 time windows is correctly decoded, the Q being a positive integer greater than 1, the Q1 and the Q2 being positive integers not greater than the Q; the first wireless signal is transmitted on a PUCCH or a PUSCH, any control signaling in any control signaling group in the Q control signaling groups being a downlink control information DCI, the first control signaling being received after the Q time windows.

9. The method of claim 8, wherein, Comprise: Transmitting Q wireless signal groups in Q time windows respectively, the Q wireless signal groups respectively comprising Q bit block groups, any bit block group in the Q bit block groups comprising a positive integer of bit blocks, any wireless signal group in the Q wireless signal groups comprising a positive integer of wireless signals, the positive integer of wireless signals corresponding to bit blocks in a corresponding bit block group one by one; Wherein, the bit block transmitted in the Q1 time windows comprises Q1 bit block groups in the Q bit block groups, the Q1 bit block groups being transmitted in the Q1 time windows respectively.

10. The method according to claim 8 or 9, characterized in that, The first control signaling is used to determine the first time-frequency resource.

11. The method according to any one of claims 8 to 10, characterized in that, The first control signaling is a downlink grant DCI.

12. The method according to any one of claims 8 to 11, characterized in that, The first feedback information comprises Q1 fields, the number of bits of each field in the Q1 fields being the same, the Q1 fields corresponding to the Q1 time windows one by one, each field in the Q1 fields being used to determine whether a bit block transmitted in a corresponding time window is correctly decoded. The first feedback information comprises Q1 fields, the number of bits of each field in the Q1 fields being the same, the Q1 fields corresponding to the Q1 time windows one by one, each field in the Q1 fields being used to determine whether a bit block transmitted in a corresponding time window is correctly decoded.

13. The method according to any one of claims 8, 9, 10, 12, characterized by, The first feedback information includes Q1 fields, the Q1 fields correspond to the Q1 time windows one by one, each of the Q1 fields is used to determine whether a bit block transmitted in a corresponding time window is correctly decoded, and the first control signaling is used to determine the number of bits in each of the Q1 fields.

14. The method according to any one of claims 8 to 13, characterized in that, The first control signaling is transmitted in a first time window, and the first control signaling includes a second field, the second field in the first control signaling is used to determine: In the first time window, a service cell-physical downlink control channel monitoring occasion pair including a downlink control information of a target format accumulated up to a current service cell and a current physical downlink control channel monitoring occasion in an increasing order of a service cell index first and an increasing order of a physical downlink control channel monitoring occasion index second; And / or, A total number of service cell-physical downlink control channel monitoring occasion pairs including a downlink control information of a target format in the first time window up to a current physical downlink control channel monitoring occasion.

15. A user equipment configured for wireless communication, the user equipment comprising: Comprise: A first receiving module: receiving Q control signaling groups in Q time windows respectively, any control signaling group in the Q control signaling groups includes a positive integer control signaling; Receiving a first control signaling, the first control signaling is used to determine Q1 time windows in the Q time windows; A first sending module: performing energy detection to determine whether to send a first wireless signal on a first time-frequency resource; if yes, sending the first wireless signal on the first time-frequency resource, otherwise, giving up sending the first wireless signal on the first time-frequency resource; Wherein, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values of the first fields of all control signalings in the control signaling group are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values of the first fields included in any two control signaling groups are different; the first wireless signal includes first feedback information, the first feedback information is used to determine whether a bit block transmitted in the Q1 time windows is correctly decoded, the Q is a positive integer greater than 1, the Q1 and the Q2 are positive integers not greater than the Q respectively; the first wireless signal is transmitted on a PUCCH or a PUSCH, any control signaling in any control signaling group in the Q control signaling groups is a downlink control information DCI, and the first control signaling is received after the Q time windows.

16. The user equipment of claim 15, wherein, Comprise: The first receiving module, receiving Q wireless signal groups in Q time windows respectively, the Q wireless signal groups respectively include Q bit block groups, any bit block group in the Q bit block groups includes a positive integer bit block, any wireless signal group in the Q wireless signal groups includes a positive integer wireless signal, and the positive integer wireless signal corresponds to a bit block in a corresponding bit block group one by one; The bit blocks transmitted in the Q1 time windows include Q1 bit block groups in the Q bit block groups, and the Q1 bit block groups are respectively transmitted in the Q1 time windows.

17. The user equipment of claim 15 or 16, wherein, The first control signaling is used to determine the first time-frequency resource.

18. The user equipment of any of claims 15-17, wherein, The first control signaling is downlink grant DCI.

19. The user equipment of any of claims 15-18, wherein, The first feedback information includes Q1 fields, the number of bits in each field of the Q1 fields is the same, the Q1 fields correspond to the Q1 time windows one by one, and each field in the Q1 fields is used to determine whether the bit block transmitted in the corresponding time window is correctly decoded.

20. The user equipment of any of claims 15, 16, 17, 19, wherein, The first feedback information includes Q1 fields, the Q1 fields correspond to the Q1 time windows one by one, and each field in the Q1 fields is used to determine whether the bit block transmitted in the corresponding time window is correctly decoded, and the first control signaling is used to determine the number of bits in each field in the Q1 fields.

21. The user equipment of any of claims 15-20, wherein, The first control signaling is transmitted in a first time window, and the first control signaling includes a second field, and the second field in the first control signaling is used to determine: In the order of increasing service cell index first and increasing physical downlink control channel monitoring occasion index second, the service cell-physical downlink control channel monitoring occasion pairs in the first time window that include downlink control information of the target format and are accumulated up to the current service cell and the current physical downlink control channel monitoring occasion; And / or, The total number of service cell-physical downlink control channel monitoring occasion pairs in the first time window that include downlink control information of the target format and are accumulated up to the current physical downlink control channel monitoring occasion.

22. A base station device for wireless communication, the base station device comprising: Including: A second sending module: respectively sending Q control signaling groups in Q time windows, any control signaling group in the Q control signaling groups includes a positive integer control signaling; Send a first control signaling, the first control signaling is used to determine Q1 time windows in the Q time windows; A second receiving module: monitoring a first wireless signal on a first time-frequency resource; Wherein, any two time windows in the Q time windows are orthogonal in the time domain; any control signaling in the Q control signaling groups includes a first field; for any control signaling group in the Q control signaling groups, the values of the first fields of all control signalings in the control signaling group are the same; for any Q2 adjacent control signaling groups in the Q control signaling groups, the values of the first fields included in any two control signaling groups are different; the first wireless signal includes first feedback information, the first feedback information is used to determine whether the bit block transmitted in the Q1 time window is correctly decoded, the Q is a positive integer greater than 1, and the Q1 and the Q2 are positive integers not greater than the Q; the first wireless signal is transmitted on PUCCH or PUSCH, any control signaling in any control signaling group in the Q control signaling groups is a downlink control information DCI, and the first control signaling is received after the Q time windows.

23. The base station device of claim 22, wherein, Including: The second sending module is configured to send Q groups of wireless signals respectively in Q time windows, wherein each of the Q groups of wireless signals comprises Q groups of bit blocks, each of the Q groups of bit blocks comprises a positive integer of bit blocks, and each of the Q groups of wireless signals comprises a positive integer of wireless signals, and each of the wireless signals corresponds to a bit block in a corresponding group of bit blocks one by one. The bit blocks transmitted in the Q1 time windows comprise Q1 groups of bit blocks in the Q groups of bit blocks, and the Q1 groups of bit blocks are sent in the Q1 time windows respectively.

24. The base station device according to claim 22 or 23, wherein, The first control signaling is used to determine the first time-frequency resource.

25. The base station device of any of claims 22-24, wherein, The first control signaling is downlink grant (DCI).

26. The base station device of any of claims 22 to 25, wherein, The first feedback information comprises Q1 fields, the number of bits in each of the Q1 fields is the same, the Q1 fields correspond to the Q1 time windows one by one, and each of the Q1 fields is used to determine whether a bit block transmitted in a corresponding time window is correctly decoded.

27. The base station device of any of claims 22, 23, 24, 26, wherein, The first feedback information comprises Q1 fields, the Q1 fields correspond to the Q1 time windows one by one, each of the Q1 fields is used to determine whether a bit block transmitted in a corresponding time window is correctly decoded, and the first control signaling is used to determine the number of bits in each of the Q1 fields.

28. The base station device of any of claims 22 to 27, wherein, The first control signaling is transmitted in a first time window, the first control signaling comprises a second field, and the second field in the first control signaling is used to determine: In an increasing order of a service cell index first and an increasing order of a physical downlink control channel monitoring occasion index second, a service cell-physical downlink control channel monitoring occasion pair comprising downlink control information of a target format accumulated in the first time window up to a current service cell and a current physical downlink control channel monitoring occasion; And / or, A total number of service cell-physical downlink control channel monitoring occasion pairs comprising downlink control information of a target format in the first time window up to a current physical downlink control channel monitoring occasion. The first control signaling is used to determine the first time-frequency resource. The first control signaling is downlink grant (DCI). The first feedback information comprises Q1 fields, the number of bits in each of the Q1 fields is the same, the Q1 fields correspond to the Q1 time windows one by one, and each of the Q1 fields is used to determine whether a bit block transmitted in a corresponding time window is correctly decoded. The first feedback information comprises Q1 fields, the Q1 fields correspond to the Q1 time windows one by one, each of the Q1 fields is used to determine whether a bit block transmitted in a corresponding time window is correctly decoded, and the first control signaling is used to determine the number of bits in each of the Q1 fields. The first control signaling is transmitted in a first time window, the first control signaling comprises a second field, and the second field in the first control signaling is used to determine: In an increasing order of a service cell index first and an increasing order of a physical downlink control channel monitoring occasion index second, a service cell-physical downlink control channel monitoring occasion pair comprising downlink control information of a target format accumulated in the first time window up to a current service cell and a current physical downlink control channel monitoring occasion; And / or, A total number of service cell-physical downlink control channel monitoring occasion pairs comprising downlink control information of a target format in the first time window up to a current physical downlink control channel monitoring occasion.

Images