Wireless communications system and wireless communications device
AssigneeSony Corporation
InventorsFumihiro Nishiyama, Yasunori Maeshima, Satoshi Konya, Nobuo Namekawa, Tomonari Yamagata, Yuhei Hashimoto, Itaru Maekawa
Life of this patent
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Abstract
A wireless communications system for performing data communications between a data transmission side wireless communications device and a data receiving side wireless communications device. In the system, random back-off access control is performed until a connection is established between the data transmission side wireless communications device and the data receiving side wireless communications device. Then, after the connection is established, asymmetric IFS access control is performed.
Claims11
A wireless communications system for performing data communications between wireless communications devices, the wireless communication system comprising:
- a data transmission side wireless communications device;
- and
- a data receiving side wireless communications device,
- wherein both the data transmission side wireless communications device and the data receiving side wireless communication device perform asymmetric IFS access control,
- wherein a connection is established between the data transmission side wireless communications device and the data receiving side wireless communications device, and after the connection is established,
- an inter frame space access control is performed in which a transmission side inter frame space assigned to the data transmission side wireless communications device and a receiving side inter frame space assigned to the data receiving side wireless communications device are asymmetrically assigned,
- wherein the transmission side inter frame space is shorter than the receiving side inter frame space and frames that have a short inter frame space are given priority over frames that have a long inter frame space and,
- wherein communication for wireless bandwidth control in addition to normal communication is not performed.
A wireless communications device that performs data communication with another wireless communications device, the wireless communication device comprising:
- an access control portion that, following establishment of a connection with the other wireless communications device, performs an inter frame space access control in which a transmission side inter frame space assigned to the other wireless communications device and a receiving side inter frame space assigned to the data receiving side wireless communications device are asymmetrically assigned,
- wherein the transmission side inter frame space is shorter than the receiving side inter frame space and frames that have a short inter frame space are given priority over frames that have a long inter frame space,
- wherein both of the wireless communications devices perform asymmetric IFS access control and,
- wherein communication for wireless bandwidth control in addition to normal communication is not performed.
Dependencies are inferred from the claim text.