System and method for wireless communication of uncompressed video having data transmission on a secondary low rate channel
First Claim
1. A method of performing link control in a system for wireless communication of uncompressed video, wherein the system comprises a plurality of low rate channels and one or more high rate channels, the method comprising:
- receiving a bandwidth request message over a first low rate channel from a first device, the bandwidth request message comprising a minimum bandwidth request; and
selecting one of the low rate channels and determining one or more available time slots on the selected low rate channel that satisfies the minimum bandwidth request if the requesting first device cannot utilize the high rate channel;
wherein the one or more high rate channels are used for communication of uncompressed digital video.
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Abstract
A system and method for performing medium access control in a system for wireless communication of uncompressed video is disclosed. In one aspect, the system includes one or more high rate channels overlapping with a primary low rate channel and one or more secondary low rate channels. In another aspect, the system includes a communication device configured to communicate a bandwidth request message identifying bandwidth required for communication with another communication device. The bandwidth request message contains information allowing a device coordinator to determine a reserved time slot for communication on a secondary low rate channel when communication is determined not to be possible on a high rate channel. Transmission on the secondary low rate channel is time division duplexed with a high rate channel, where transmission at any one time can take place on either the high rate or the secondary low rate channel.
69 Citations
34 Claims
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1. A method of performing link control in a system for wireless communication of uncompressed video, wherein the system comprises a plurality of low rate channels and one or more high rate channels, the method comprising:
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receiving a bandwidth request message over a first low rate channel from a first device, the bandwidth request message comprising a minimum bandwidth request; and selecting one of the low rate channels and determining one or more available time slots on the selected low rate channel that satisfies the minimum bandwidth request if the requesting first device cannot utilize the high rate channel; wherein the one or more high rate channels are used for communication of uncompressed digital video. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for performing link control in a network for wireless communication of uncompressed video, wherein the network comprises a plurality of low rate channels and one or more high rate channels, the system comprising:
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a receiver configured to receive a bandwidth request message over a first low rate channel from a first device, the bandwidth request message comprising a minimum bandwidth request; and a link controller configured to select one of the low rate channels and determine one or more available time slots on the selected low rate channel that satisfies the minimum bandwidth request if the requesting first device cannot utilize the high rate channel; wherein the one or more high rate channels are used for communication of uncompressed digital video. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of performing medium access control in a system for wireless communication of uncompressed video, wherein the system comprises a plurality of low rate channels and one or more high rate channels, the method comprising:
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transmitting a bandwidth request message over a first low rate channel, the bandwidth request message comprising a minimum bandwidth request; receiving a plurality of messages over the first low rate channel wherein one of the received messages is a bandwidth response message associated with the transmitted bandwidth request message, the bandwidth response message containing information identifying a selected low rate channel and at least one reserved time slot within a superframe period, the superframe period being of a predetermined length; and transmitting and/or receiving over the selected low rate channel during the at least one identified time slot of one or more subsequent superframe periods. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A system for performing medium access control in a network for wireless communication of uncompressed video, wherein the network comprises a plurality of low rate channels and one or more high rate channels, the system comprising:
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a transmitter to transmit a bandwidth request message over a first low rate channel, the bandwidth request message comprising a minimum bandwidth request; and a receiver to receive a plurality of messages over the first low rate channel, wherein one of the received messages is a bandwidth response message associated with the transmitted bandwidth request message, the bandwidth response message containing information identifying a selected low rate channel and at least one reserved time slot within a superframe period, the superframe period being of a predetermined length; wherein, the transmitter transmits and/or the receiver receives over the selected low rate channel during the at least one identified time slot of one or more subsequent superframe periods. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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34. A system for wireless communication of uncompressed digital video data over a wireless communication link, the wireless communication link including one or more high rate channels associated with a bandwidth capable of supporting transmission of the uncompressed video data, and a plurality of low rate channels comprising second bandwidths smaller than the first bandwidth, wherein at least a portion of a frequency band of each of the low rate channels overlaps a portion of a frequency band of one of the high rate channels, the system comprising:
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a device coordinator comprising; a receiver to receive a request for an available bandwidth over the low rate channel, a medium access controller configured to determine a capability to utilize the high rate channel, and, in response to determining that the high rate channel cannot be utilized, select one of the low rate channels and determine a time slot available on the selected low rate channel that satisfies the bandwidth request, and a transmitter to transmit a response message over the low rate channel containing information identifying the determined time slot and the low rate channel; and a device comprising; a transmitter to transmit the request for an available bandwidth over the low rate channel, and a receiver to monitor the low rate channel and to receive the response message, wherein the transmitter is further configured to transmit on the low rate channel during the identified time slot.
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Specification