Radio communication method and radio communication device
First Claim
1. A radio communication method for a radio communication system, which is composed of a plurality of radio communication devices in such a manner that radio communication devices other than a given radio communication device exist within the communication area of the given radio communication device, wherein a time slot is assigned to the given radio communication device periodically so that it can access a wireless medium in the time slot at higher priority than the other radio communication devices.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention discloses a technique for avoiding a signal collision in a wireless medium to improve communication throughput. According to this technique, in a radio communication system composed of a plurality of radio communication devices in such a manner that other radio communication devices exist within the communication area of a radio communication device, a given radio communication device is assigned a time slot periodically so that it can access the wireless medium in the time slot at higher priority than the other radio communication devices. This is achieved as follows: The radio communication device monitors the wireless medium, detects other radio communication devices operating within the communication area of the radio communication device, and divide communication time on the wireless medium into time slots of equal width according to the number of other radio communication devices. Then, each radio communication device selects one of these time slots so as not to share the selected time slot with any other radio communication device, and uses a waiting time shorter than those of the other radio communication devices to access the wireless medium in the selected time slot.
-
Citations
31 Claims
-
1. A radio communication method for a radio communication system, which is composed of a plurality of radio communication devices in such a manner that radio communication devices other than a given radio communication device exist within the communication area of the given radio communication device, wherein
a time slot is assigned to the given radio communication device periodically so that it can access a wireless medium in the time slot at higher priority than the other radio communication devices.
-
15. (canceled)
-
16. (canceled)
-
17. A radio communication device in whose communication area any other radio communication device may exist, wherein said radio communication device is constructed in a manner to detect the number of other radio communication devices existing in the communication area and send information on the number of other radio communication devices to the other radio communication devices.
-
18. (canceled)
- 19. A radio communication device in whose communication area any other radio communication device may exist, wherein said radio communication device is constructed in a manner to detect the number of other radio communication devices existing in the communication area, receive from the other radio communication devices information on the number of radio communication devices existing in the communication areas of the other radio communication devices, and create parameters for dividing communication time on a wireless medium into time slots of equal length based on the number of radio communication devices detected and the number of radio communication devices received from the other radio communication devices.
-
22. (canceled)
-
23-24. -24. (canceled)
-
26-28. -28. (canceled)
-
30. (canceled)
Specification