Communication device, communication control method, and program

Abstract

[Object] To enable determination as to whether or not at least part of a predetermined signal is correctly received at a transmission destination device even in the case of failure in reception processing of a signal which responds to the predetermined signal. [Solution] Provided is a communication device including: a transmitting unit configured to perform transmission processing of a first signal; a receiving unit configured to perform reception processing of a second signal which responds to the first signal in a predetermined period determined by a time point of the transmission processing; and a determining unit configured to perform determination as to whether or not at least part of the first signal is correctly received at a transmission destination device on the basis of information acquired in process of the reception processing.

1 . A communication device, comprising:
 a transmitting unit configured to transmit a first signal;   a receiving unit configured to perform a reception processing operation of a second signal, wherein
 the second signal, in response to the first signal, is received in a specific time period, and 
 the specific time period corresponds to a time point of the transmission of the first signal; and 
   a determining unit configured to determine whether at least a part of the first signal is correctly received at a transmission destination device based on presence of information related to a response field in a physical header of the second signal.   
     
     
         2 . The communication device according to  claim 1 , wherein the determining unit is further configured to determine, in a case of failure in the reception processing operation, whether at least the part of the first signal is correctly received at the transmission destination device. 
     
     
         3 . The communication device according to  claim 1 , wherein the determining unit is further configured to determine that at least the part of the first signal is correctly received at the transmission destination device based on whether received power one of equal to or greater than a specific threshold is detected in the specific time period. 
     
     
         4 . The communication device according to  claim 3 , wherein the determining unit is further configured to determine whether at least the part of the first signal is correctly received at the transmission destination device based on whether at least a part of a specific signal pattern included in the second signal is detected. 
     
     
         5 . The communication device according to  claim 1 , wherein the determining unit is further configured to determine whether at least the part of the first signal is correctly received at the transmission destination device based on whether at least a part of a signal pattern specific to the second signal is detected. 
     
     
         6 . The communication device according to  claim 1 , wherein the determining unit is further configured to determine whether at least the part of the first signal is correctly received at the transmission destination device based on a combination of a frequency band and a spatial stream for the reception processing operation. 
     
     
         7 . The communication device according to  claim 1 , wherein
 the receiving unit is further configured to perform the reception processing operation using a plurality of frequency bands, and   the determining unit is further configured to determine whether at least the part of the first signal is correctly received at the transmission destination device based on whether the reception processing operation is successful in a part of the plurality of frequency bands.   
     
     
         8 . The communication device according to  claim 1 , further comprising:
 a control unit configured to, in a case where the first signal is a data frame and the second signal is an ACK frame, and based on the determination that at least the part of the first signal is correctly received at the transmission destination device, maintain a value of a contention window for at least one of a setting operation of a transmission waiting period or a setting operation of a minimum value.   
     
     
         9 . The communication device according to  claim 1 , wherein, in a case where the first signal is a request to send (RTS) frame, and the second signal is a clear to send (CTS) frame, the transmitting unit is further configured to transmit a data frame based on the determination that the first signal is correctly received at the transmission destination device. 
     
     
         10 . The communication device according to  claim 1 , further comprising:
 a control unit configured to, in a case where the first signal is a signal for requesting transmission to the transmission destination device and the second signal is a signal to be transmitted in response to the signal for requesting the transmission, and based on the determination that the first signal is correctly received at the transmission destination device, maintain a value of a contention window for at least one of a setting operation of a transmission waiting period or a setting operation of a minimum value.   
     
     
         11 . The communication device according to  claim 10 , wherein, in a case where, based on the determination that the first signal is correctly received at the transmission destination device, the control unit is further configured to change combination of a frequency band and a spatial stream for communication. 
     
     
         12 . The communication device according to  claim 1 , wherein,
 in a case where the first signal includes a transmission notification of a channel measurement signal, a channel measurement signal, and a feedback transmission request of the channel measurement signal, and   the second signal is a signal to be transmitted in response to the feedback transmission request,   in a case where of the determination that the first signal is correctly received at the transmission destination device, the transmitting unit is further configured to retransmit only the feedback transmission request of the channel measurement signal, without retransmission of the channel measurement signal and the transmission notification of the channel measurement signal.   
     
     
         13 . A communication control method to be executed by a computer, comprising:
 transmitting a first signal;   performing reception processing of a second signal, wherein
 the second signal, in response to the first signal, is received in a specific time period, and 
 the specific time period corresponds to a time point of the transmission of the first signal; and 
   determining whether at least a part of the first signal is correctly received at a transmission destination device based on presence of information related to a response field in a physical header of the second signal.   
     
     
         14 . A non-transitory computer-readable medium having stored thereon computer-executable instructions, that when executed by a processor, cause the processor to execute operations, the operations comprising:
 transmitting a first signal;   performing reception processing of a second signal, wherein
 the second signal, in response to the first signal, is received in a specific time period, and 
 the specific time period corresponds to a time point of the transmission of the first signal; and 
   determining whether at least a part of the first signal is correctly received at a transmission destination device based on presence of information related to a response field in a physical header of the second signal.   
     
     
         15 . A communication device, comprising:
 a receiving unit configured to receive a first signal;   a generating unit configured to generate a second signal in response to the first signal; and   a transmitting unit configured to transmit the second signal, wherein the second signal is transmitted by use of a resource block for transmission of a response to the first signal.   
     
     
         16 . The communication device according to  claim 15 , wherein the resource block is expressed with combination of a frequency band and a spatial stream. 
     
     
         17 . The communication device according to  claim 16 , wherein a different spatial stream is associated with each frequency band as a resource. 
     
     
         18 . A communication control method to be executed by a computer, comprising:
 receiving a first signal;   generating a second signal in response to the first signal; and   transmitting the second signal, wherein the second signal is transmitted by use of a resource block for transmission of a response to the first signal.   
     
     
         19 . A non-transitory computer-readable medium having stored thereon computer-executable instructions, that when executed by a processor, cause the processor to execute operations, the operations comprising:
 receiving a first signal;   generating a second signal in response to the first signal; and   transmitting the second signal, wherein the second signal is transmitted by use of a resource block for transmission of a response to the first signal.