Apparatus and method adapted for directional bandwidth reservation with fixed announcement slot in wireless networks
AssigneeIntel Corporation
InventorsAlex Kesselman, Solomon Trainin, Yuval Bachrach
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Abstract
An embodiment of the present invention provides an apparatus, comprising a transceiver operable in a wireless personal area network, wherein the transceiver is configured to communicate with a coordinator and at least one receiver and wherein the transceiver and the coordinator use a directional reservation of free channel time blocks using contention-based slots, by selecting uniformly at random contention slots by the transceiver and transmitting a bandwidth reservation request message specifying the requested reservation period using directional transmission pointed towards the coordinator.
Claims18
An apparatus, comprising:
- a transceiver operable in a wireless personal area network, wherein said transceiver is configured to communicate with a coordinator and at least one receiver;
- wherein said transceiver and said coordinator use a directional reservation of free channel time blocks using contention-based slots, by selecting contention slots by said transceiver and transmitting a bandwidth reservation request message specifying the requested reservation period using directional transmission pointed towards said coordinator using a directional antenna for reception during contention slots;
- wherein contention slots are shortened to accommodate only a transmission of a preamble allowing the coordinator to perform antenna training and lock onto a directional signal;
- wherein the preamble is followed by a directional transmission of a bandwidth reservation request message;
- and
- wherein if said coordinator advertises contention periods in a beacon, then said contention periods can be located at the beginning as well as in the middle of free channel time blocks;
- wherein if multiple senders have succeeded with request transmission, said coordinator selects one of them.
A method, comprising:
- using a transceiver operable in a wireless personal area network to communicate with a coordinator and at least one receiver;
- and
- shortening contention slots to accommodate only a transmission of a preamble when said coordinator uses a directional antenna for reception during contention slots, allowing the coordinator to perform antenna training and lock onto a directional signal and wherein said preamble is followed by directional transmission of a bandwidth reservation request message;
- wherein said transceiver and said coordinator use a directional reservation of free channel time blocks using contention-based slots, by selecting contention slots by said transceiver and transmitting the bandwidth reservation request message specifying the requested reservation period using directional transmission pointed towards said coordinator using the directional antenna for reception during contention slots;
- wherein if said coordinator advertises contention periods in a beacon, then said contention periods can be located at the beginning as well as in the middle of free channel time blocks;
- wherein if multiple senders have succeeded with request transmission, said coordinator selects one of them.
A non-transitory machine-accessible medium that provides instructions, which when accessed cause a processor to perform operation:
- configuring a transceiver operable in a wireless personal area network to communicate with a coordinator and at least one receiver;
- configuring said transceiver and said coordinator to use a directional reservation of free channel time blocks using contention-based slots, by selecting contention slots by said transceiver and transmitting a bandwidth reservation request message specifying the requested reservation period using directional transmission pointed towards said coordinator using a directional antenna for reception during contention slots;
- and
- shortening contention slots to accommodate only a transmission of a preamble when said coordinator uses a directional antenna for reception during contention slots, allowing the coordinator to perform antenna training and lock onto a directional signal and wherein said preamble is followed by directional transmission of a bandwidth reservation request message;
- wherein if said coordinator advertises contention periods in a beacon, then said contention periods can be located at the beginning, as well as in the middle of free channel time blocks.
Dependencies are inferred from the claim text.