US 8,553,600 B2 · Apparatus and method for establishing contention window in wimedia wireless network

Abstract

There are provided an apparatus and a method for establishing a contention window in a WiMedia wireless network. The contention window establishing apparatus includes: a parsing unit extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each device; a calculation unit calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices; and a contention window establishing unit establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, to reduce contentions among the devices and decrease data transmission latency time, thereby maximizing efficiency in data transmission latency time.

Claims8

Dependent claims

An apparatus for establishing a contention window in a WiMedia wireless network, the apparatus comprising:

a parsing unit configured to extract the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each of the devices;
a calculation unit configured to calculate a transmission probability of each access category (AC) on the basis of the extracted number of devices;
and
a contention window establishing unit configured to establish a contention window for each access category (AC) on the basis of the calculated transmission probability, wherein
the access category (AC) comprises at least one of Best-Effort (BE), BacKground (BK), VIdeo (VI) and VOice (VO), and
the calculation unit is configured to provide a weight of each access category (AC) to the devices and calculate the transmission probability of each access category using the weight.

3 more elements

A method of establishing a contention window in a WiMedia wireless network, the method comprising the steps of:

(a) extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each of the devices;
(b) calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices;
and
(c) establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, wherein
the access category (AC) comprises at least one of Best-Effort (BE), BacKground (BK), VIdeo (VI) and VOice (VO), and
step (b) comprises:
(b-1) providing a weight of each access category (AC) to the devices;
and
(b-2) calculating the transmission probability of each access category using the weight.

6 more elements

Dependencies are inferred from the claim text.

Apparatus and method for establishing contention window in wimedia wireless network

Life of this patent

Apparatus and method for establishing contention window in wimedia wireless network

Life of this patent

Abstract

Claims8