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US 2015/0146590 A1Published application
Ethernet Physical Layer Device Using Time Division Duplex
AssigneeBroadcom Corporation
InventorsAhmad Chini, Mehmet Vakif Tazebay, Scott Powell
Life of this patent
Estimating the term…
Abstract
An Ethernet physical layer device using time division duplex. A time division duplex frame can be defined with uplink and downlink transmission periods. These defined uplink and downlink transmission periods can be adjusted based on bandwidth and latency considerations on the network link.
Claims20
A method, comprising:
- transmitting, by a first physical layer device to a second physical layer device via a single conductor pair network link, data during a first time period when the first physical layer device has exclusive transmission use of the single conductor pair network link;
- and
- receiving, by the first physical layer device from the second physical layer device via the single conductor pair network link, data that is transmitted by the second physical layer device during a second time period when the second physical layer device has exclusive transmission use of the single conductor pair network link, the second time period separated from the first time period by a first gap period, and a second gap period following the second time period, wherein the first and second time periods and the first and second gap periods define a repeating time division duplex frame;
- and
- adjusting a length of at least one of the first and second time periods based on a change in needed bandwidth by one of the first and second physical layer devices.
2 more elements
A device, comprising:
- a transmitter coupled to a single conductor pair cable, the transmitter configured to transmit data to a link partner during a first time period when the device has exclusive transmission use of the single conductor pair cable;
- a receiver coupled to the single conductor pair cable, the receiver configured to receive data transmitted by the link partner during a second time period when the link partner has exclusive transmission use of the single conductor pair cable, the second time period separated from the first time period by a first gap period, and a second gap period following the second time period, wherein the first and second time periods and the first and second gap periods define a repeating time division duplex frame;
- and
- a controller configured to adjust a length of the first time period based on a change in needed bandwidth by the device.
1 more element
A device, comprising:
- a transmitter coupled to a single twisted wire pair, the transmitter configured to transmit data to a link partner during a first time period when the device has exclusive transmission use of the single twisted wire pair;
- and
- a receiver coupled to the single twisted wire pair, the receiver configured to receive data transmitted by the link partner during a second time period when the link partner has exclusive transmission use of the single twisted wire pair, the second time period separated from the first time period by a first gap period, and a second gap period following the second time period, the first and second time periods and the first and second gap periods defining a repeating time division duplex frame, wherein the first time period is longer than the second time period such that the transmitter can transmit data at X bits/s, and the receiver can receive data at Y bits/s, X>Y.
Dependencies are inferred from the claim text.