Wireless communication device and method

Abstract

The present technology relates to a wireless communication device and method which enable the reliability of a notification pertaining to a received result to be enhanced in a communication using a plurality of bands. The wireless communication device transmits, by using any one among two or more bands, an MBO BA Setup signal including setting information about setting of a reception result notification method, which is used in a communication in two or more bands, and controls to transmit a Data signal including data by using the two or more bands. The present technology can be applied to a wireless communication system.

Description

[Technical field]

[0001] The present technology relates to a wireless communication device and method, and more particularly to a wireless communication device and method that can improve the reliability of notifications regarding reception results in communications using a plurality of bands. [Background technology]

[0002] 2. Description of the Related Art There is an increasing demand for wireless communication with high transmission speeds and high communication quality. In order to achieve high transmission speeds, for example, it is known to perform communication using a plurality of frequency bands (hereinafter also simply referred to as bands).

[0003] In wireless communication, multiple bands are allocated as unlicensed bands that require Listen Before Talk to check whether the band is in use before transmission. Wireless communication that achieves high transmission speeds using these multiple bands is expected in the future. Patent Document 1 proposes a communication method that uses multiple bands simultaneously, assuming wireless LAN.

[0004] On the other hand, retransmission of failed transmission data is known as a method for achieving high communication quality. Patent Document 2 shows a method for improving the probability of successful transmission by setting an appropriate transmission rate to transmit a reception result within an acquired TXOP (Transmission Opportunity). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-157535 A [Patent Document 2] JP 2006-352711 A Summary of the Invention [Problem to be solved by the invention]

[0006] When retransmission is performed, the receiving side notifies the transmitting side of information regarding data that was received but failed to be demodulated, and the transmitting side determines which data should be retransmitted.

[0007] However, in communication using multiple bands, it is not efficient to notify the reception result of data transmitted in each band in each band. Also, if the propagation characteristics of a certain band are poor, there is a risk that the transmission side will not be correctly notified even if the reception result is notified in the band with poor propagation characteristics.

[0008] The present technology has been made in consideration of such circumstances, and makes it possible to improve the reliability of notifications regarding reception results in communications using multiple bands. [Means for solving the problem]

[0009] According to one aspect of the present technology, there is provided a wireless communication device including a control unit that controls to transmit a Setup signal including configuration information related to a setting of a method of notifying a reception result used for communication in two or more bands, using one of the two or more bands, and to transmit a Data signal including data, using the two or more bands, wherein the configuration information is first communication information related to communication and retransmission between a first wireless communication device and a second wireless communication device, and the first communication information includes information related to a band in which the first wireless communication device transmits the Data signal. the control unit controls to receive a first Ack signal including at least information on a first reception result based on the setting information, the first Ack signal being transmitted in a first band among two or more bands in which the Data signal is transmitted, and a second Ack signal including at least information on a second reception result based on the setting information, the second Ack signal being transmitted in a second band among two or more bands in which the Data signal is transmitted, the second band being different from the first band, the first Ack signal and the second Ack signal including at least information on the same reception result among information on the reception result for the Data signal. .

[0010] According to another aspect of the present technology, there is provided a wireless communication device including a control unit configured to control reception of setting information related to a setting of a notification method of a reception result related to communication of two or more bands, the control unit configured to control transmission of a reception result for data transmitted using the two or more bands based on the setting information, the setting information being first communication information related to communication and retransmission between a first wireless communication device and a second wireless communication device, the first communication information being information related to a band in which the first wireless communication device transmits the data. the control unit controls to transmit a first signal including at least a first reception result based on the setting information in a first band among the two or more bands, and controls to transmit a second signal including at least a second reception result based on the setting information in a second band among the two or more bands different from the first band, and the first signal and the second signal include at least an identical reception result among reception results for the data. .

[0011] In one aspect of the present technology, a Setup signal including configuration information related to the setting of a notification method of a reception result used in communication of two or more bands is controlled to be transmitted using one of the two or more bands, and a Data signal including data is controlled to be transmitted using the two or more bands. The configuration information is first communication information related to communication and retransmission between a first wireless communication device and a second wireless communication device, and the first communication information includes information related to a band in which the first wireless communication device transmits the Data signal. In addition, control is performed to receive a first Ack signal that includes at least information on a first reception result based on the setting information and is transmitted in a first band among two or more bands in which the Data signal is transmitted, and a second Ack signal that includes at least information on a second reception result based on the setting information and is transmitted in a second band among two or more bands in which the Data signal is transmitted, the second band being different from the first band, and the first Ack signal and the second Ack signal include at least information on the same reception result among information on the reception result for the Data signal.

[0012] In another aspect of the present technology, control is performed to receive setting information related to a setting of a notification method of a reception result related to communication of two or more bands, and control is performed to transmit a reception result for data transmitted using the two or more bands based on the setting information. The setting information is first communication information related to communication and retransmission between a first wireless communication device and a second wireless communication device, and the first communication information includes information related to a band in which the first wireless communication device transmits the data. In addition, control is performed to transmit a first signal including at least a first reception result based on the setting information in a first band among the two or more bands, and control is performed to transmit a second signal including at least a second reception result based on the setting information in a second band among the two or more bands that is different from the first band, and the first signal and the second signal include at least the same reception result among the reception results for the data. [Brief description of the drawings]

[0013] [Figure 1] 1 is a diagram illustrating an example of a configuration of a wireless communication system according to an embodiment of the present technology. [Diagram 2] FIG. 11 is a diagram illustrating an example of an operation sequence when transmitting an MBO BA signal in a certain band. [Diagram 3] FIG. 11 is a diagram illustrating an example of an operation sequence when transmitting an MBO BA signal in multiple bands. [Figure 4] 11 is a diagram showing an example of an operation sequence when transmitting an MBO BA signal in a band with good propagation characteristics. [Diagram 5] FIG. 11 is a diagram illustrating an example of an operation sequence when transmitting the same Data signal in multiple bands. [Figure 6] 1 is a block diagram showing an example of the configuration of a wireless communication device; [Figure 7]11 is a flowchart illustrating a communication process of a wireless communication device operating as an AP. [Figure 8] 11 is a flowchart illustrating communication processing of a wireless communication device operating as a STA. [Figure 9] 11 is a diagram illustrating an example of a format configuration of a frame in which an MBO BA signal is stored. [Figure 10] FIG. 13 is a diagram illustrating an example of the format of a frame in which an MBO BA Setup signal is stored. [Figure 11] FIG. 2 is a diagram illustrating an example of a format used for a Data signal. [Figure 12] FIG. 1 is a block diagram illustrating an example of the configuration of a computer. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present technology will be described in the following order. 1. System Configuration 2. Communication sequence 3. Apparatus Configuration 4. Processing flow 5. Data Structure 6. Hardware Configuration 7.Other

[0015] <1. System configuration> <Example of wireless communication system configuration> FIG. 1 is a diagram illustrating an example of a configuration of a wireless communication system according to an embodiment of the present technology.

[0016] The wireless communication system in FIG. 1 is configured by connecting a base station AP to terminals STA via wireless communication.

[0017] The base station AP is composed of a wireless communication device 11. The terminal STA is composed of a wireless communication device 12. Hereinafter, the base station AP will be simply referred to as AP, and the terminal STA will be simply referred to as STA. The wireless communication devices 11 and 12 will be described later.

[0018] The AP transmits to the STA an MBO BA Setup (Multi Band Operation Block Ack Setup) signal, which is a setup signal related to the setting of the notification method of the reception result used in communication of two or more frequency bands (hereinafter referred to as bands). The MBO BA Setup signal includes setting information related to communication and retransmission between the AP and the STA. The MBO BA Setup signal is controlled so that it is transmitted using one of the two or more bands.

[0019] The AP receives a Response signal transmitted from the STA, determines a method of communication between the AP and the STA and a method of retransmission, and transmits a Data signal including data addressed to the STA to the STA in multiple bands.

[0020] The STA receives an MBO BA Setup signal transmitted from the AP, and transmits a Response signal, which is a response signal to the MBO BA Setup signal, to the AP.

[0021] The STA receives the Data signal transmitted from the AP and obtains the data addressed to it by demodulating it.The STA then transmits the MBO BA signal, which is a reception result signal, to the AP.At that time, the MBO BA signal is controlled so that it is transmitted in one or more bands determined by the transmission and reception of the MBO BA Setup signal and the Response signal.

[0022] As described above, in the wireless communication system of FIG. 1, an MBO BA Setup signal (Setup signal) including setting information regarding the setting of the method of notifying reception results used in communication of two or more bands is transmitted using one of the two or more bands, and a Data signal including data is transmitted using two or more bands.

[0023] This allows the AP and STAs to efficiently share information regarding the reception results of communications using multiple bands without wasting frequency resources.

[0024] <2. Communication sequence> <Example of operation sequence (example of transmitting MBO BA signal in a certain band)> FIG. 2 is a diagram showing an example of an operation sequence of the wireless communication system according to the embodiment of the present technology.

[0025] Fig. 2 shows an operation sequence for transmitting an MBO BA signal in a certain band. Fig. 2 also shows an example in which an AP, which is a wireless communication device 11, and an STA, which is a wireless communication device 12, communicate using three bands.

[0026] Here, the AP and the STA communicate using the first band, the second band, and the third band. In Fig. 2, the AP's first band, the second band, and the third band sequences are shown as AP@Band1, AP@Band2, and AP@Band3, respectively. The STA's first band, the second band, and the third band sequences are shown as STA@Band1, STA@Band2, and STA@Band3, respectively.

[0027] At time t1, the AP transmits an MBO BA Setup signal to the STA. As described above, the MBO BA Setup signal includes setting information regarding communication and retransmission between the AP and the STA.

[0028] The setting information may include information about a band in which the AP transmits data or a band in which the STA notifies the reception result. The information about the band may be information indicating a specific frequency and bandwidth, or may be information about an identifier that identifies a specific frequency and bandwidth. The information about the band may be information indicating that the band is the same as the band in which the MBO BA Setup signal is transmitted.

[0029] The configuration information may include information regarding identifiers indicating the number, size, and type of data transmitted and received by the AP and STA, and identifiers indicating the order.

[0030] The setting information may include information regarding the amount of data that the AP and STA can hold, the upper limit of the number of retransmissions of data transmitted and received by the AP and STA, and the time until the held data is discarded.

[0031] The setting information may include at least one of information regarding a method in which the STA notifies the reception result and information regarding the transmission timing of the notification of the reception result.

[0032] In FIG. 2, the STA receives an MBO BA Setup signal transmitted from the AP, and at time t2, transmits a Response signal to the MBO BA Setup signal to the AP.

[0033] The Response signal may include information on whether or not to perform communication and retransmission based on the setting information included in the MBO BA Setup signal. The Response signal may include setting information on communication and retransmission that is different from the setting information included in the MBO BA Setup signal.

[0034] In FIG. 2, the MBO BA Setup signal and the Response signal are transmitted in the first band, but may be transmitted in the second band or the third band, or may be transmitted in two or more bands among the first to third bands.

[0035] In addition, the MBO BA Setup signal and the Response signal may be transmitted and received when establishing a connection between the AP and the STA.

[0036] The AP receives the Response signal transmitted from the STA and determines a method of communication between the AP and the STA and a method of retransmission. At time t3, the AP transmits a Data signal including data addressed to the STA to the STA.

[0037] 2 shows an example in which the data shown below is transmitted in each band. In the first band, a Data signal containing data with identifiers indicating the data order of #1, #2, and #3 is transmitted. In the second band, a Data signal containing data with identifiers indicating the data order of #4, #5, and #6 is transmitted, and in the third band, a Data signal containing data with identifiers indicating the data order of #7, #8, and #9 is transmitted.

[0038] The identifier indicating the order of data to be transmitted in each band may be determined before transmitting a Data signal, or may be determined by transmitting and receiving an MBO BA Setup signal and a Response signal.

[0039] The Data signal may be transmitted after a certain time has elapsed since the Response signal, or after the SIFS (Short Inter Frame Space) defined by IEEE802.11 has elapsed. The Data signal is transmitted using two or more bands. The bands may include band information determined by the transmission and reception of the MBO BA Setup signal and the Response signal.

[0040] The Data signal may include information indicating that it is being transmitted using two or more bands. The Data signal may be transmitted simultaneously using two or more bands, or may be transmitted in the order in which the bands become available for transmission.

[0041] The Data signal may include information indicating that it supports the method of notifying the reception result determined by the transmission and reception of the MBO BA Setup signal and the Response signal. Among the Data signals, the Data signal transmitted in the band in which the STA notifies the reception result may include information indicating that it is transmitted in that band.

[0042] The Data signal may include information on an identifier indicating an order of a plurality of data items included in the Data signal. The Data signal may include information on an identifier indicating an order of data items included in the Data signal transmitted in each band, and information on each band.

[0043] The Data signal may include information regarding respective identifiers indicating the number, size, and type of data contained in the Data signal.

[0044] In FIG. 2, the STA receives a Data signal transmitted from the AP in the first to third bands and demodulates it to obtain data addressed to the STA.

[0045] After acquiring the data, the STA transmits an MBO BA signal to the AP at time t4. At this time, the MBO BA signal is transmitted in a band determined by transmitting and receiving an MBO BA Setup signal and a Response signal. In FIG. 2, an example is shown in which the MBO BA signal is transmitted using the first band.

[0046] The MBO BA signal may include information about a notification that the signal includes reception results used in communication of multiple bands. The MBO BA signal may include information about an identifier indicating the order of data transmitted in each band, and a plurality of reception results in a bitmap format for the data.

[0047] The MBO BA signal may include information indicating which band the reception result is for the data transmitted in. The MBO BA signal may include information indicating successful reception of all data in a certain band or successful reception of data in all bands.

[0048] The MBO BA signal may include information about an identifier indicating a type of data corresponding to the reception result. The MBO BA signal may include information indicating in which band the identifier regarding the type of data corresponding to the reception result corresponds to the data transmitted.

[0049] In FIG. 2, the AP receives the MBO BA signal transmitted from the STA in the first band and ends the communication processing.

[0050] The above sequence enables the AP and STAs to efficiently share information regarding the reception results of communications using multiple bands without wasting frequency resources.

[0051] <Another example of an operation sequence (example of transmitting MBO BA signals in multiple bands)> FIG. 3 is a diagram showing an example of an operation sequence when transmitting an MBO BA signal in multiple bands.

[0052] The MBO BA Setup signal, Response signal, and Data signal in FIG. 3 are assumed to be configured in the same manner as the MBO BA Setup signal, Response signal, and Data signal in FIG. 2 described above.

[0053] At time t11, the AP transmits an MBO BA Setup signal to the STA.

[0054] The STA receives the MBO BA Setup signal transmitted from the AP, and at time t12, transmits a Response signal to the MBO BA Setup signal to the AP.

[0055] The AP receives the Response signal transmitted from the STA and determines the method of communication between the AP and the STA and the method of retransmission. At time t13, the AP transmits a Data signal including data addressed to the STA to the STA.

[0056] The STA receives the Data signal transmitted from the AP in the first to third bands and demodulates it to obtain the data addressed to the STA.

[0057] After acquiring the data, the STA transmits an MBO BA signal to the AP at time t14. At this time, the MBO BA signal is transmitted in all bands in which the Data signal was transmitted.

[0058] The AP receives the MBO BA signals transmitted from the STA in the first to third bands, and ends the communication processing.

[0059] In the case of FIG. 3, the MBO BA signal may include the same information including the reception results for the Data signals transmitted in all bands.

[0060] The MBO BA signal may include information including reception results for Data signals transmitted in the band in which the MBO BA signal is transmitted and Data signals transmitted in other bands. For example, the MBO BA signal transmitted in the first band may include reception results for Data signals transmitted in the first band, the second band, and the third band. Also, the MBO BA signals transmitted in the second band and the third band may include reception results for Data signals transmitted in the second band and the third band, respectively.

[0061] The above sequence provides redundancy to the information on the reception result, making it possible to share the information on the reception result between the AP and the STAs with high reliability.

[0062] <Another example of an operation sequence (an example of transmitting an MBO BA signal in a band with good propagation characteristics)> FIG. 4 is a diagram showing an example of an operation sequence when transmitting an MBO BA signal in a band with good propagation characteristics.

[0063] The MBO BA Setup signal, Response signal, and Data signal in FIG. 4 are assumed to be configured in the same manner as the MBO BA Setup signal, Response signal, and Data signal in FIG. 2 described above.

[0064] At time t21, the AP transmits an MBO BA Setup signal to the STA.

[0065] The STA receives the MBO BA Setup signal transmitted from the AP, and at time t22, transmits a Response signal to the MBO BA Setup signal to the AP.

[0066] The AP receives the Response signal transmitted from the STA, and determines a method of communication between the AP and the STA and a method of retransmission. At time t23, the AP transmits a Data signal including data addressed to the STA to the STA.

[0067] The STA receives the Data signal transmitted from the AP in the first to third bands and acquires the data addressed to the STA by demodulating it. At this time, the STA determines whether the propagation characteristics are poor for all bands.

[0068] The propagation characteristics may be determined based on the received power of a Data signal transmitted in the band and a signal interference noise power budget. The propagation characteristics may be determined based on the rate of successful demodulation of data included in a Data signal. The propagation characteristics may be determined based on the magnitude relationship between the rate of successful demodulation of data included in a Data signal and a predetermined threshold value that is set in advance.

[0069] The propagation characteristics may be determined based on whether or not a Data signal is detected in a band in which the Data signal is expected to be transmitted, based on information on the transmission band of the Data signal determined by transmitting and receiving the MBO BA Setup signal and the Response signal. Alternatively, the propagation characteristics may be determined based on whether or not a Data signal is detected in a band in which the Data signal is expected to be transmitted, based on information on the transmission band of the Data signal included in a Data signal received in another band.

[0070] At time t24, the STA transmits an MBO BA signal in a band other than the band determined to have poor propagation characteristics. The STA may store the reception result in the band determined to have poor propagation characteristics in the MBO BA signal transmitted in the other band and transmit the result.

[0071] In Fig. 4, an example is shown in which the STA determines that the propagation characteristics of the second band are poor, and transmits the MBO BA signal in the first band and the third band, but does not transmit in the second band. At least one of the MBO BA signals transmitted in the first band or the third band includes the reception result of the Data signal in the second band.

[0072] The AP receives the MBO BA signal transmitted from the STA in the first band and the third band, and ends the communication processing.

[0073] The above sequence makes it possible to avoid transmitting information about reception results in bands with poor propagation characteristics, and to share information about reception results with high reliability between the AP and STA. In addition, the AP can learn bands with poor propagation characteristics, and can transmit data that needs to be retransmitted in bands with good propagation characteristics.

[0074] <Another example of an operation sequence (transmitting the same data signal in multiple bands)> FIG. 5 is a diagram showing an example of an operation sequence when the same Data signal is transmitted in multiple bands.

[0075] The MBO BA Setup signal, the Response signal, and the MBO BA signal in FIG. 5 are assumed to be configured in the same manner as the MBO BA Setup signal, the Response signal, and the MBO BA signal in FIG. 2 described above.

[0076] At time t31, the AP transmits an MBO BA Setup signal to the STA.

[0077] The STA receives the MBO BA Setup signal transmitted from the AP, and at time t32, transmits a Response signal to the MBO BA Setup signal to the AP.

[0078] The AP receives the Response signal transmitted from the STA, and determines a method of communication between the AP and the STA and a method of retransmission. At time t33, the AP transmits a Data signal including data addressed to the STA to the STA.

[0079] 5 shows an example in which the following data is transmitted in each band: In the first band, Data signals containing data with identifiers indicating the data order of #1, #2, and #3 are transmitted; in the second band, Data signals containing data with identifiers indicating the data order of #1, #2, and #3 are transmitted; and in the third band, Data signals containing data with identifiers indicating the data order of #4, #5, and #6 are transmitted.

[0080] That is, the AP transmits the same data in the first band and the second band. The rest of the explanation regarding the Data signal is the same as in the example of FIG.

[0081] The STA receives the data signal transmitted from the AP in the first to third bands and demodulates it to obtain the data addressed to the STA. At that time, the STA determines whether the propagation characteristics are poor for all bands, as in the example of FIG.

[0082] At time t34, the STA transmits an MBO BA signal in a band other than the band determined to have poor propagation characteristics (for example, the first band and the third band). The STA may transmit the reception result in the band determined to have poor propagation characteristics by storing it in the MBO BA signal transmitted in the other band.

[0083] The AP receives the MBO BA signal transmitted from the STA in the first band and the third band, and ends the communication processing.

[0084] The above sequence enables the AP and STAs to efficiently share information about reception results without wasting frequency resources.

[0085] In any of the above examples, a STA that transmits reception results for the same data using two or more bands considers the reception results included in two or more MBO BA signals to have the same content.

[0086] When the reception results included in two or more MBO BA signals transmitted from the STA are different, the AP determines a single reception result. The reception result may be determined by prioritizing the reception result included in the MBO BA signal received in a specific band.

[0087] The reception result may be determined by prioritizing the reception result with a numerical advantage among the multiple reception results included in the multiple MBO BA signals. For example, if the reception result for Data #1 is demodulation successful in the MBO BA signals received in the first and second bands and demodulation failed in the MBO BA signal received in the third band, it is determined that the demodulation is successful.

[0088] The reception result may be determined as demodulation success when one or more reception results among the multiple reception results included in the multiple MBO BA signals are demodulation successful. For example, when the reception result for Data #1 is demodulation successful in the MBO BA signals received in the first and second bands and demodulation failure in the MBO BA signal received in the third band, it is determined as demodulation success.

[0089] The reception result may be determined as demodulation failure if one or more of the reception results included in the multiple reception results included in the multiple MBO BA signals are demodulation failure. For example, if the reception result for Data #1 is demodulation success for the MBO BA signals received in the first and second bands and demodulation failure for the MBO BA signal received in the third band, it is determined as demodulation failure.

[0090] <3. Device configuration example> FIG. 6 is a block diagram showing an example of the configuration of the wireless communication device 11. As shown in FIG.

[0091] A wireless communication device 11 shown in FIG. 6 is a device that operates as an AP.

[0092] The wireless communication device 11 includes a control unit 31, a power supply unit 32, and communication units 33-1 to 33-3. In the example of Fig. 6, three communication units 33-1 to 33-3 are included. The communication units 33-1 to 33-3 may be realized as an LSI.

[0093] The communication units 33-1 to 33-3 transmit and receive data, and each of the communication units 33-1 to 33-3 includes a data processing unit 51, a wireless control unit 52, a modulation / demodulation unit 53, a signal processing unit 54, a channel estimation unit 55, wireless interface (I / F) units 56-1 to 56-N, amplifier units 57-1 to 57-N, and antennas 58-1 to 58-N.

[0094] The wireless I / F units 56-1 to 56-N, the amplifier units 57-1 to 57-N, and the antennas 58-1 to 58-N each have the same sub-number and are grouped together, and one or more groups may be components. Note that the functions of the amplifier units 57-1 to 57-N may be included in the wireless I / F units 56-1 to 56-N.

[0095] In the following, when there is no need to distinguish between the communication units 33-1 to 33-3, they will be referred to as communication unit 33. In addition, when there is no need to distinguish between the wireless I / F units 56-1 to 56-N, the amplifier units 57-1 to 57-N, and the antennas 58-1 to 58-N, they will be referred to as wireless I / F unit 56, amplifier unit 57, and antenna 58.

[0096] The control unit 31 is configured with a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The control unit 31 executes programs stored in the ROM, etc., and controls the power supply unit 32 and the wireless control unit 52.

[0097] The power supply unit 32 is formed from a battery power source or a fixed power source, and supplies power to the entire wireless communication device 11 .

[0098] At the time of transmission, the data processing unit 51 generates packets for wireless transmission using data supplied from an upper layer. The data processing unit 51 performs processing on the generated packets, such as adding a header for media access control (MAC) and an error detection code, and outputs the processed data to the modem unit 53.

[0099] When receiving data, the data processing unit 51 performs MAC header analysis, packet error detection, reordering, and the like on the data supplied from the modem unit 53, and outputs the processed data to its upper layer.

[0100] The wireless control unit 52 transfers information between the various units of the wireless communication device 11, and controls the various units within the communication unit 33. The wireless control unit 52 is made up of a transmission control unit 61 and a reception control unit 62.

[0101] During transmission, the transmission control unit 61 performs parameter setting in the modulation / demodulation unit 53 and the signal processing unit 54, packet scheduling in the data processing unit 51, and parameter setting and transmission power control in the wireless I / F unit 56 and the amplifier unit 57, as necessary. During reception, the reception control unit 62 performs parameter setting in the modulation / demodulation unit 53 and the signal processing unit 54, and parameter setting in the wireless I / F unit 56 and the amplifier unit 57, as necessary.

[0102] In particular, the transmission control unit 61 transmits an MBO BA Setup signal including setting information related to the setting of the notification method of the reception result used in communication of two or more bands, and controls each unit to transmit a Data signal using two or more bands. The reception control unit 62 controls each unit to receive a response signal to the MBO BA Setup signal and an MBO BA signal to the Data signal.

[0103] At least a part of the operations of wireless control unit 52 may be performed by control unit 31 instead of wireless control unit 52. Furthermore, control unit 31 and wireless control unit 52 may be configured as one block.

[0104] At the time of transmission, the modem unit 53 performs encoding, interleaving, and modulation on the data supplied from the data processing unit 51 based on the encoding method and modulation method set by the control unit 31, to generate a data symbol stream. The modem unit 53 outputs the generated data symbol stream to the signal processing unit 54.

[0105] During reception, the modem unit 53 performs demodulation, deinterleaving, and decoding on the data symbol stream supplied from the signal processing unit 54 , and outputs the resulting data to the data processing unit 51 or the radio control unit 52 .

[0106] During transmission, if necessary, the signal processing unit 54 performs signal processing for spatial separation on the data symbol stream supplied from the modulation / demodulation unit 53, and outputs one or more transmission symbol streams obtained as a result of the signal processing to each of the wireless I / F units 56.

[0107] Upon reception, the signal processing unit 54 performs signal processing on the received symbol streams supplied from each wireless I / F unit 56, performs spatial separation of the streams if necessary, and outputs the data symbol stream obtained as a result of the spatial separation to the modulation / demodulation unit 53.

[0108] The channel estimation unit 55 calculates complex channel gain information of the propagation path from the preamble portion and the training signal portion of the received symbol stream supplied from each wireless I / F unit 56. The complex channel gain information is supplied to the modulation / demodulation unit 53 and the signal processing unit 54 via the wireless control unit 52, and is used for demodulation processing in the modulation / demodulation unit 53 and spatial separation processing in the signal processing unit 54.

[0109] During transmission, the wireless I / F unit 56 converts the transmission symbol stream from the signal processing unit 54 into an analog signal, performs filtering, up-conversion to the carrier frequency, and phase control, and outputs the analog signal after phase control to the amplifier unit 57.

[0110] During reception, the wireless I / F unit 56 performs phase control, down-conversion, and inverse filtering on the analog signal supplied from the amplifier unit 57, and outputs the resulting received symbol stream after conversion into a digital signal to the signal processing unit 54 and the channel estimation unit 55.

[0111] During transmission, amplifier unit 57 amplifies the analog signal supplied from wireless I / F unit 56 to a predetermined power and outputs the amplified analog signal to antenna 58. During reception, amplifier unit 57 amplifies the analog signal supplied from antenna 58 to a predetermined power and outputs the amplified analog signal to wireless I / F unit 56.

[0112] At least a part of at least one of the transmission function and the reception function of the amplifier unit 57 may be included in the wireless I / F unit 56. At least a part of at least one of the functions of the amplifier unit 57 may be a component outside the communication unit 33.

[0113] Note that the configuration of wireless communication device 12 operating as a STA is basically the same as that of wireless communication device 11, so the configuration of wireless communication device 11 will be used in the following explanation of wireless communication device 12.

[0114] In this case, the reception control unit 62 receives an MBO BA Setup signal, which is setting information related to the setting of the notification method of the reception result used for communication in two or more bands, and controls each unit to receive a Data signal transmitted using two or more bands. The transmission control unit 61 controls each unit to transmit a Response signal to the MBO BA Setup signal and an MBO BA signal, which is the data reception result, based on the setting information.

[0115] <4. Processing flow> <Processing of wireless communication device 11 (AP)> FIG. 7 is a flowchart illustrating communication processing of the wireless communication device 11 operating as an AP.

[0116] In step S11 , the transmission control unit 61 of the wireless communication device 11 controls each unit of the communication section 33 to transmit an MBO BA Setup signal to the wireless communication device 12 .

[0117] The wireless communication device 12 that has received the MBO BA Setup signal transmits a Response signal to the MBO BA Setup signal to the wireless communication device 11 (step S32 in FIG. 8, which will be described later).

[0118] In step S12 , the reception control unit 62 controls each unit of the communication unit 33 to receive a Response signal transmitted from the wireless communication device 12 .

[0119] In step S13, the transmission control unit 61 determines the communication and retransmission method between the wireless communication device 11 and the wireless communication device 12 based on the Response signal, controls each part of the communication unit 33, and transmits the Data signal to the wireless communication device 12 using two or more bands.

[0120] The wireless communication device 12 that has received the Data signal transmits an MBO BA signal for the Data signal to the wireless communication device 11 (step S42 in FIG. 8, which will be described later).

[0121] In step S14, the reception control unit 62 controls each unit of the communication unit 33 to receive the MBO BA signal transmitted from the wireless communication device 12.

[0122] The MBO BA signal may be transmitted in a single band, as described above with reference to FIG. 2 or FIG. 3, or in multiple bands, as described above with reference to FIG. 4 or FIG. 5.

[0123] In step S15, the reception control unit 62 determines whether there are different reception results for the same data.

[0124] If there are multiple reception results and there are different reception results for the same data, the result is determined as NO in step S15, and the process proceeds to step S16. In step S16, the reception control unit 62 determines a single reception result from among the different reception results. After that, the communication process of the wireless communication device 11 ends.

[0125] On the other hand, if there is a single reception result or there are multiple reception results and there are no different reception results for the same data, the result is determined as YES in step S15, the processing of step S16 is skipped, and the communication processing of the wireless communication device 11 is terminated.

[0126] <Processing of wireless communication device 12 (STA)> FIG. 8 is a flowchart illustrating communication processing of the wireless communication device 12 operating as the STA.

[0127] The wireless communication device 11 transmits an MBO BA Setup signal to the wireless communication device 12 (step S11 in FIG. 7).

[0128] In step S31, the reception control unit 62 of the wireless communication device 12 controls each unit of the communication section 33 to receive the MBO BA Setup signal transmitted from the wireless communication device 11.

[0129] In step S32, the transmission control unit 61 controls each unit of the communication unit 33 to transmit to the wireless communication device 11 a Response signal in response to the MBO BA Setup signal.

[0130] Upon receiving the Response signal, wireless communication device 11 transmits a Data signal to wireless communication device 12 using two or more bands (step S13 in FIG. 7).

[0131] In step S33, the reception control unit 62 controls each unit of the communication unit 33 to receive the Data signal transmitted from the wireless communication device 11.

[0132] In step S34, the transmission control unit 61 determines, based on the Data signal, whether or not to transmit the MBO BA signal in a single band.

[0133] If it is determined in step S34 that the MBO BA signal is to be transmitted in a single band, the process proceeds to step S35. In step S35, the transmission control unit 61 determines to transmit the MBO BA signal in a single band.

[0134] If it is determined in step S34 that the MBO BA signal is not to be transmitted in a single band, the process proceeds to step S36. In step S36, the transmission control unit 61 determines to transmit the MBO BA signal in a plurality of bands.

[0135] After steps S35 and S36, the process proceeds to step S37.

[0136] In step S37, the transmission control unit 61 determines whether or not there is a band with poor propagation characteristics based on the propagation characteristics of each band when the Data signal is received, as described above with reference to Fig. 4. If it is determined in step S37 that there is a band with poor propagation characteristics, the process proceeds to step S38.

[0137] In step S38, the transmission control unit 61 determines to transmit the MBO BA signal in a band other than the band with poor propagation characteristics. After that, the process proceeds to step S39.

[0138] If it is determined in step S37 that there is no band with poor propagation characteristics, step S is skipped and the process proceeds to step S39.

[0139] In step S39, as described above with reference to FIG. 3, the transmission control unit 61 determines whether the MBO BA signal includes the reception result for the Data signal transmitted in another band.

[0140] If it is determined in step S39 that the MBO BA signal includes the reception result for the Data signal transmitted in another band, the process proceeds to step S40.

[0141] In step S40, the transmission control unit 61 determines to transmit an MBO BA signal including the reception result for the Data signal transmitted in two or more bands.

[0142] If it is determined in step S39 that the MBO BA signal does not include the reception result for the Data signal transmitted in another band, the process proceeds to step S41.

[0143] In step S41, the transmission control unit 61 determines to transmit an MBO BA signal including the reception result for the Data signal transmitted in a single band.

[0144] After step S40 or S41, the process proceeds to step S42.

[0145] In step S42, the transmission control unit 61 transmits the MBO BA signal according to the method determined by the above processing. Thereafter, the communication process of the wireless communication device 12 ends.

[0146] By performing the transmission and reception control as described above, in communication using a plurality of bands, the reliability of the notification regarding the reception result can be improved.

[0147] <5. Data Configuration> <Example of the Format Configuration of the Frame in which the MBO BA Signal is Stored> FIG. 9 is a diagram showing an example of the format configuration of the frame in which the MBO BA signal is stored.

[0148] 9 is composed of the fields Frame Control, Duration, RA, TA, BA Control, BA Information, and FCS. This frame is included in an MPDU (MAC Protocol Data Unit), which is a data unit in the MAC layer.

[0149] The Frame Control field contains information about the type of the frame. The Duration field contains information about the length of the frame. The RA field contains information about the destination address of the frame. The TA field contains information about the source address of the frame.

[0150] The BA Control field consists of the BA Ack Policy, BA Type, Reserve, and TID_INFO fields.

[0151] The BA Ack Policy field contains information about the transmission timing of the reception result. The BA Type field contains information indicating that the frame contains the reception result for data transmitted using multiple bands. The Reserve field contains reserved bits. The TID_INFO field contains information about the number of types of transmitted data.

[0152] The BA Information field consists of the MBO Info, Block Ack Starting Sequence Control, and Block Ack Bitmap fields. The Block Ack Starting Sequence Control and Block Ack Bitmap fields are repeated for the number of bands.

[0153] The MBO Info field consists of the Band Info, Copy Indication, All Ack, TID (Traffic ID) encode, and TID fields.

[0154] The Band Info field contains information about the band in which the data notifying the reception result was sent in the frame. For example, it has bits corresponding to the first band, the second band, and the third band, and by setting the bits, it is indicated in which band the reception result for the data sent is included.

[0155] The Copy Indication field contains information indicating that an MBO BA signal storing the frame containing the same content is transmitted in a band different from the band in which the MBO BA signal storing the frame is transmitted.

[0156] The All Ack field contains information indicating that all reception results have been successfully demodulated.

[0157] The TID encode field contains information indicating in which band the subsequent TID corresponds to the reception result of the data transmitted.

[0158] The TID field includes information about the identifier of the type of data for which the reception result is to be notified. For example, the TID encode field indicates the number of types of data for which the reception result is to be notified in each of the first band, the second band, and the third band.

[0159] As a specific example, in the field of TID encode, when it is shown that the types of data to notify the reception results include four in the first band, two in the second band, and one in the third band, the subsequent fields of the TID are repeated seven times. In this case, the first four of the TID fields are information indicating identifiers related to the types of data transmitted in the first band, the next two are information indicating identifiers related to the types of data transmitted in the second band, and the last two are information indicating identifiers related to the types of data transmitted in the third band.

[0160] The field of Block Ack Starting Sequence Control includes information regarding an identifier indicating the order of the first data for which the reception result is notified.

[0161] The field of Block Ack Bitmap includes information regarding the reception results for each data in bitmap format.

[0162] Note that the example of the frame format configuration shown in FIG. 9 is just an example, and the frames of the present technology may be configured in other formats.

[0163] <Example of Frame Format Configuration in which the MBO BA Setup Signal is Stored> FIG. 10 is a diagram showing an example of the frame format configuration in which the MBO BA Setup signal is stored.

[0164] The frame of FIG. 10 is composed of each field of BA Band Info, Number of Data, Buffer size, TID_INFO, Sequence Number Info, Retry Limit, Life Time, and BA Timing. This frame is also included in, for example, an MPDU which is a data unit in the MAC layer.

[0165] The BA Band Info includes information about the band in which the wireless communication device 11 transmits data or the band in which the wireless communication device 12 notifies the reception result.

[0166] The Number of Data field includes information regarding the number of pieces of data that wireless communication device 11 and wireless communication device 12 transmit and receive.

[0167] The Buffer Size field includes information about the size of data that wireless communication device 11 and wireless communication device 12 transmit and receive.

[0168] The TID_INFO field includes information about an identifier indicating the number and types of data that the wireless communication device 11 and the wireless communication device 12 transmit and receive.

[0169] The field of Sequence Number Info includes information about an identifier that indicates the order of data that wireless communication device 11 and wireless communication device 12 transmit and receive.

[0170] The Retry Limit field includes information about the upper limit of the number of times that the wireless communication device 11 and the wireless communication device 12 can retransmit data.

[0171] The Life Time field contains information about the time until data communicated between wireless communication device 11 and wireless communication device 12 is discarded.

[0172] The BA Timing field includes information about the method by which the wireless communication device 12 notifies the reception result and the timing of sending the notification.

[0173] Note that the format of the frame in which the Response signal is stored is also the same as the configuration of the frame in FIG. 10. Further, the format configuration of the frame in which the Response signal is stored may include information indicating approval for each piece of information notified by the MBO BA Setup signal. Furthermore, the format configuration of the frame in which the Response signal is stored may include only information indicating non-approval for each piece of information notified by the MBO BA Setup signal.

[0174] <Example of format configuration used for Data signal> FIG. 11 is a diagram showing an example of a format configuration used for the Data signal.

[0175] The Data signal in FIG. 11 is composed of a physical header (Phy Header) arranged at the head and a physical payload (Phy Payload).

[0176] The Phy Header may include an L-STF (Legacy Short Training Field), an L-LTF (Legacy Long Training Field), and an L-SIG (Legacy Signal Field).

[0177] In the Phy Header of FIG. 11, a NEW-SIG, which is an area for storing communication information regarding communication using a plurality of bands and notification of the reception result thereof, is arranged behind the L-SIG.

[0178] The NEW-SIG includes fields of MBO Indication, Band Info, and MBO BA Request as fields including communication information.

[0179] The field of MBO Indication includes information indicating that the Data signal transmitted using the said format is transmitted using a plurality of bands.

[0180] The Band Info field contains information about the band in which a Data signal is transmitted using the format.

[0181] The MBO BA Request field includes information indicating that the band in which the Data signal is transmitted using the format is the band in which the reception result for the data stored in the Data signal is transmitted.

[0182] The data included in the Data signal transmitted using this format is stored in the Phy Payload.

[0183] <6. Hardware configuration> <Computer configuration example> The above-mentioned series of processes can be executed by hardware or software. When the series of processes is executed by software, the program constituting the software is installed from a program recording medium into a computer incorporated in dedicated hardware, or into a general-purpose personal computer, etc.

[0184] FIG. 12 is a block diagram showing an example of the hardware configuration of a computer that executes the above-mentioned series of processes according to a program.

[0185] A central processing unit (CPU) 301, a read only memory (ROM) 302, and a random access memory (RAM) 303 are interconnected via a bus 304.

[0186] An input / output interface 305 is further connected to the bus 304. An input unit 306 including a keyboard, a mouse, etc., and an output unit 307 including a display, a speaker, etc. are connected to the input / output interface 305. In addition, a storage unit 308 including a hard disk, a non-volatile memory, etc., a communication unit 309 including a network interface, etc., and a drive 310 that drives a removable medium 311 are connected to the input / output interface 305.

[0187] In the computer configured as above, the CPU 301 loads a program stored in the storage unit 308 into the RAM 303 via the input / output interface 305 and the bus 304 and executes the program, thereby performing the above-mentioned series of processes.

[0188] The programs executed by the CPU 301 are installed in the storage unit 308 by being recorded on a removable medium 311, or provided via a wired or wireless transmission medium such as a local area network, the Internet, or digital broadcasting.

[0189] In addition, the program executed by the computer may be a program in which processing is performed chronologically in the order described in this specification, or it may be a program in which processing is performed in parallel or at the required timing, such as when called.

[0190] <7.Other> As described above, in the present technology, a Setup signal including configuration information regarding the setting of a method for notifying a reception result used in communication of two or more bands is transmitted using one of the two or more bands, and a Data signal including data is controlled to be transmitted using two or more bands.

[0191] This allows the transmitting side and the receiving side to efficiently share information regarding the reception results of communications using multiple bands without wasting resources.

[0192] Furthermore, according to the present technology, by providing redundancy to the contents related to the reception result, it is possible to share the contents with high reliability between the transmitting side and the receiving side.

[0193] According to the present technology, by avoiding the transmission of information relating to the reception result in a band with poor propagation characteristics, it is possible to retransmit data that needs to be retransmitted in a band with good propagation characteristics.

[0194] According to the present technology, it is possible to efficiently notify the reception result of data transmitted in multiple bands.

[0195] This technology maintains compatibility with existing communications standards (IEEE802.11), minimizes adverse effects on existing terminals, and enables coexistence.

[0196] Furthermore, according to the present technology, it is possible to realize high communication quality in communication using multiple bands, and it is possible to improve the peak rate, throughput, and reliability of data transmission.

[0197] In this specification, a system refers to a collection of multiple components (devices, modules (parts), etc.), regardless of whether all the components are in the same housing. Therefore, multiple devices housed in separate housings and connected via a network, and a single device in which multiple modules are housed in a single housing, are both systems.

[0198] It should be noted that the effects described in this specification are merely examples and are not limiting, and other effects may also be obtained.

[0199] The embodiments of the present technology are not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present technology.

[0200] For example, the present technology can be configured as cloud computing, in which a single function is shared and processed collaboratively by multiple devices via a network.

[0201] Furthermore, each step described in the above flow chart can be executed by one device, or can be shared and executed by a plurality of devices.

[0202] Furthermore, when a single step includes multiple processes, the multiple processes included in the single step can be executed by a single device, or can be shared and executed by multiple devices.

[0203] <Examples of configuration combinations> The present technology can also be configured as follows. (1) A transmission control unit is provided that controls to transmit a Setup signal including setting information related to the setting of a method of notifying a reception result used in communication of two or more bands, using one of the two or more bands, and to transmit a Data signal including data, using the two or more bands. Wireless communication device. (2) The setting information is first communication information related to communication and retransmission between a first wireless communication device and a second wireless communication device. The wireless communication device according to (1). (3) The first communication information is information regarding a band in which the first wireless communication device transmits the Data signal. The wireless communication device according to (2). (4) The first communication information is information regarding a band in which the second wireless communication device notifies the reception result. The wireless communication device according to (2) or (3). (5) The first communication information is information about the Data signal transmitted and received between the first wireless communication device and the second wireless communication device. A wireless communication device according to any one of (2) to (4). (6) The first communication information is at least one of information on an upper limit of the number of retransmissions of the Data signal transmitted and received between the first wireless communication device and the second wireless communication device and information on a time until the Data signal is discarded. A wireless communication device according to any one of (2) to (5). (7) The first communication information is information related to a method for the second wireless communication device to notify the reception result and a transmission timing of the notification of the reception result. A wireless communication device according to any one of (2) to (6). (8) The Setup signal is transmitted in a first band of the two or more bands. A wireless communication device according to any one of (1) to (7). (9) The Data signal is transmitted including second communication information related to the communication using the two or more bands and the notification of the reception result. A wireless communication device according to any one of (1) to (8). (10) The second communication information is information indicating that the Data signal is transmitted using the two or more bands. The wireless communication device according to (9). (11) The second communication information is information regarding a band in which the Data signal is transmitted. The wireless communication device according to (9) or (10). (12) The second communication information is information indicating that a notification regarding the reception result is to be made in a band in which the Data signal is transmitted. The wireless communication device according to any one of (9) and (11). (13) A wireless communication device, A Setup signal including setting information on a method of notifying a reception result used in communication in two or more bands is transmitted using one of the two or more bands, and a Data signal including data is transmitted using the two or more bands. A wireless communication method. (14) A receiving unit that receives setting information regarding a setting of a notification method of a reception result regarding communication of two or more bands; a transmission unit that transmits a reception result for the data transmitted using the two or more bands based on the setting information; A wireless communication device comprising: (15) A reception result for the data is transmitted in a BA signal including a reception result for the communication of the two or more bands. The wireless communication device according to (14). (16) The BA signal includes information indicating that the BA signal is a reception result related to communication in the two or more bands. The wireless communication device according to (15). (17) The BA signal includes information about a band in which the data was transmitted, the information notifying a reception result regarding the communication in the two or more bands. The wireless communication device according to (15) or (16). (18) The BA signal includes information indicating that the same reception result is notified in another band. The wireless communication device according to any one of (15) to (17). (19) The BA signal includes information regarding the type of the data for the reception results transmitted in the two or more bands. The wireless communication device according to any one of (15) to (18). (20) The BA signal includes a reception result corresponding to the data transmitted in the two or more bands. The wireless communication device according to any one of (15) to (19). (twenty one) A wireless communication device, A receiving unit that receives setting information regarding a setting of a notification method of a reception result regarding communication of two or more bands; Transmitting a reception result for the data transmitted using the two or more bands based on the setting information. A wireless communication method. [Explanation of symbols]

[0204] 11 wireless communication device, 12 wireless communication device, 31 control section, 32 power supply section, 31, 33-1 to 33-3 communication section, 51 data processing section, 52 wireless control section, 53 modulation / demodulation section, 54 signal processing section, 55 channel estimation section, 56, 56-1 to 56-N wireless I / F section, 57, 57-1 to 57-N amplifier section, 58-1 to 58-N antenna, 61 transmission control section, 62 reception control section

Claims

1. A wireless communication device as a first wireless communication device that communicates with a second wireless communication device, A control unit controls to transmit a Setup signal including setting information related to a setting of a method of notifying a reception result used in communication of two or more bands, using one of the two or more bands, and to transmit a Data signal including data, using the two or more bands; the setting information is first communication information related to communication and retransmission between the first wireless communication device and the second wireless communication device, the first communication information includes information regarding a band in which the first wireless communication device transmits the Data signal; the control unit controls reception of a first Ack signal, which is transmitted in a first band among two or more bands in which the Data signal is transmitted, and includes at least information on a first reception result based on the setting information, and a second Ack signal, which is transmitted in a second band among the two or more bands in which the Data signal is transmitted, and includes at least information on a second reception result based on the setting information, and which is transmitted in a second band different from the first band among the two or more bands in which the Data signal is transmitted; The first Ack signal and the second Ack signal include at least information on the same reception result among information on the reception result for the Data signal. Wireless communication device.

2. The first communication information includes information regarding a band in which the second wireless communication device notifies the reception result. The wireless communication device of claim 1 .

3. The first communication information includes information regarding the Data signal transmitted and received between the first wireless communication device and the second wireless communication device. The wireless communication device of claim 1 .

4. The first communication information includes at least one of information regarding an upper limit number of retransmissions of the Data signal transmitted and received between the first wireless communication device and the second wireless communication device and information regarding a time until the Data signal is discarded. The wireless communication device of claim 1 .

5. The first communication information includes information regarding a method for the second wireless communication device to notify the reception result and a transmission timing of the notification of the reception result. The wireless communication device of claim 1 .

6. The Setup signal is transmitted in a first band among the two or more bands. The wireless communication device of claim 1 .

7. The Data signal is transmitted including second communication information related to the communication using the two or more bands and the notification of the reception result. The wireless communication device of claim 1 .

8. The second communication information includes information indicating that the Data signal is transmitted using the two or more bands.

8. The wireless communication device according to claim 7.

9. The second communication information includes information regarding a band in which the Data signal is transmitted.

8. The wireless communication device according to claim 7.

10. The second communication information includes information indicating that the notification regarding the reception result is to be performed in a band in which the Data signal is transmitted.

8. The wireless communication device according to claim 7.

11. A wireless communication device as a first wireless communication device that communicates with a second wireless communication device, A Setup signal including setting information on a method of notifying a reception result used in communication of two or more bands is transmitted using one of the two or more bands, and a Data signal including data is transmitted using the two or more bands; the setting information is first communication information related to communication and retransmission between the first wireless communication device and the second wireless communication device, the first communication information includes information regarding a band in which the first wireless communication device transmits the Data signal; performing control to receive a first Ack signal including at least information on a first reception result based on the setting information, the first Ack signal being transmitted in a first band among two or more bands in which the Data signal is transmitted, and a second Ack signal including at least information on a second reception result based on the setting information, the second Ack signal being transmitted in a second band among the two or more bands in which the Data signal is transmitted, the second band being different from the first band; The first Ack signal and the second Ack signal include at least information on the same reception result among information on the reception result for the Data signal. A wireless communication method.

12. A wireless communication device as a second wireless communication device that communicates with a first wireless communication device, a control unit that controls receiving setting information regarding a setting of a method of notifying a reception result regarding communication of two or more bands, the control unit performs control to transmit a reception result for the data transmitted using the two or more bands based on the setting information; the setting information is first communication information related to communication and retransmission between the first wireless communication device and the second wireless communication device, the first communication information includes information regarding a band in which the first wireless communication device transmits the data; the control unit performs control to transmit a first signal including at least a first reception result based on the setting information in a first band among the two or more bands, and controls to transmit a second signal including at least a second reception result based on the setting information in a second band among the two or more bands different from the first band; The first signal and the second signal include at least the same reception result among reception results for the data. Wireless communication device.

13. The reception result for the data is transmitted in a BA signal including the reception result for the communication of the two or more bands.

13. The wireless communication device of claim 12.

14. The BA signal includes information indicating that the BA signal is a reception result related to communications in the two or more bands.

14. The wireless communication device of claim 13.

15. The BA signal includes information about a band in which the data was transmitted, the information notifying a reception result regarding the communication in the two or more bands.

14. The wireless communication device of claim 13.

16. The BA signal includes information indicating that the same reception result is notified in another band.

14. The wireless communication device of claim 13.

17. The BA signal includes information regarding the type of the data for the reception results transmitted in the two or more bands.

14. The wireless communication device of claim 13.

18. The BA signal includes a reception result corresponding to the data transmitted in the two or more bands.

14. The wireless communication device of claim 13.

19. A wireless communication device as a second wireless communication device that communicates with a first wireless communication device, Controlling reception of setting information relating to a setting of a notification method of a reception result relating to communication of two or more bands; performing control to transmit a reception result for the data transmitted using the two or more bands based on the setting information; the setting information is first communication information related to communication and retransmission between the first wireless communication device and the second wireless communication device, the first communication information includes information regarding a band in which the first wireless communication device transmits the data; performing control to transmit a first signal including at least a first reception result based on the setting information in a first band among the two or more bands, and control to transmit a second signal including at least a second reception result based on the setting information in a second band among the two or more bands that is different from the first band; The first signal and the second signal include at least the same reception result among reception results for the data. A wireless communication method.

Images