Bandwidth allocation method of wirelessly transmitting AV stream data in wireless communication system including coordinator device

摘要

In response to a video and audio bandwidth allocation request command signal and an audio bandwidth allocation request command signal from a source device, a coordinator device allocates a first reservation period for transmitting AV stream data from the source device to a sink device and a second reservation period for transmitting audio stream data from the source device to a sink device within a predetermined frame period, and transmits a beacon signal including information on allocation of the first reservation period and the second reservation period.

主权项

1. A bandwidth allocation method for use in a wireless communication system, the wireless communication system including a source device and a bandwidth management device for managing a bandwidth for wireless transmission, the wireless communication system wirelessly transmitting one of (a) first stream data including video and audio data and (b) second stream data including video data from the source device to a first sink device, and wirelessly transmitting third stream data including audio data from the source device to a second sink device, the bandwidth allocation method comprising:
receiving, via the source device, a first output format notification signal transmitted from the first sink device; receiving, via the source device, a second output format notification signal transmitted from the second sink device; in response to the source device receiving the first output format notification signal transmitted from the first sink device, transmitting, via the source device, a first bandwidth allocation request signal for requesting allocation of a bandwidth for transmitting the first stream data to the first sink device, to the bandwidth management device; in response to the source device receiving the second output format notification signal transmitted from the second sink device, transmitting, via the source device, a second bandwidth allocation request signal for requesting allocation of a bandwidth for transmitting the third stream data to the second sink device, to the bandwidth management device; determining, in response to the first and second bandwidth allocation request signals and via the bandwidth management device, whether or not the first and second bandwidth allocation request signals originated from a same source device; and when said determining determines that the first and second bandwidth allocation request signals have originated from the same source device and via the bandwidth management device, allocating a first reservation period for transmitting the first stream data from the source device to the first sink device and a second reservation period for transmitting the third stream data from the source device to the second sink device within a predetermined one frame period, and transmitting a beacon signal including information of the allocation of the first and second reservation periods.