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US 2019/0158636 A1Published application
Information processing apparatus and information processing method
AssigneeSony Corporation
InventorsTakeshi ITAGAKI, Tomoya YAMAURA, Kazuyuki SAKODA, Masanori SATO
Life of this patent
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Abstract
An electronic device including circuitry configured to perform control in a manner that a Physical Layer Convergence Protocol (PLCP) header format is selected from a plurality of PLCP header formats; and append the selected PLCP header to a physical layer packet for transmission.
Claims20
An electronic device comprising:
- circuitry configured to
- set a first COLOR information for identifying a first network to which the information processing apparatus belongs in a SIGNAL field of Physical Layer Convergence Protocol(PLCP) header of the IEEE 802.11 standard;
- transmit a first packet including the first COLOR information to a first device belonging to the first network;
- detect a portion of a second packet, the portion including a second COLOR information included in a second PLCP header of the second packet ;
- determine whether the second packet is received from the first network or from a second network based on the second identifier in the second packet
- in response to the second packet being determined to be from the first network, detect a remaining portion of the second packet and
- in response to the second packet being determined to be from the second network,
- (i) when a detected strength of a signal including the second packet is lower than a detection threshold, cancel reception of signals and enter a carrier sense idle state, and
- (ii) when the detected strength of the signal is greater than or equal to the detection threshold, cancel reception of signals and enter a carrier sense busy state.
6 more elements
A method comprising:
- setting a first COLOR information for identifying a first network to which the information processing apparatus belongs in a SIGNAL field of Physical Layer Convergence Protocol(PLCP) header of the IEEE 802.11 standard;
- transmitting a first packet including the first COLOR information to a first device belonging to the first network;
- detecting a portion of a second packet, the portion including a second COLOR information included in a second PLCP header of the second packet ;
- determining whether the second packet is received from the first network or from a second network based on the second identifier in the second packet;
- in response to the second packet being determined to be from the first network, detecting a remaining portion of the second packet;
- and
- in response to the second packet being determined to be from the second network,
- (i) when a detected strength of a signal including the second packet is lower than a detection threshold, canceling reception of signals and enter a carrier sense idle state, and
- (ii) when the detected strength of the signal is greater than or equal to the detection threshold, canceling reception of signals and enter a carrier sense busy state.
6 more elements
Dependencies are inferred from the claim text.