Method and terminal for transmitting uplink data
AssigneeHangzhou H3C Technologies Co., Ltd.
InventorYang Yu
Life of this patent
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Abstract
Embodiments of the present invention disclose a method for transmitting uplink Ethernet data in a coaxial network, a Coaxial Network Unit (CNU) and a Coaxial Line Terminal (CLT) applying the method. In the method, the CNU determines a transmission path loss between the CNU and the CLT, determines a transmission level for transmitting uplink data according to the transmission path loss, and transmits the uplink data by using the determined transmission level. The present invention ensures the security of data uplink transmission in an Ethernet Passive Coaxial Network (EPCN) system in essence and dramatically increases service quality.
Claims14
A method for transmitting uplink data in a coaxial network which comprise a Coaxial Line Terminal (CLT), a plurality of a Coaxial Network Unit (CNU) and a branch for connecting the CLT and the CNU, comprising:
- determining, by the CNU, a transmission path loss in a CLT-CNU direction according to a receiving level of the CNU and a downlink transmission level adopted by the CLT;
- determining, by the CNU, a transmission level for transmitting uplink data according to the transmission path loss;
- and
- transmitting, by the CNU, the uplink data to the CLT through the branch by using the transmission level;
- wherein the transmission level for transmitting uplink data is higher than the transmission path loss in CLT-CNU direction but lower than level isolating amplitude of the branch to make the branch transmit the uplink data only to the CLT and not to another CNU,
- wherein the determining the transmission level for transmitting the uplink data according to the transmission path loss comprises:
- determining the transmission level for transmitting the uplink data according to a sum of the transmission path loss, a receiving level of the CLT and an adjusting level, the adjusting level meeting a following condition:
- a difference between the transmission level for transmitting the uplink data determined according to the adjusting level and a path loss between the CNU and the branch is not higher than the level isolating amplitude of the branch.
A Coaxial Network Unit (CNU), comprising:
- a path loss determining unit, adapted to determine a transmission path loss in a CLT-Coaxial Network Unit (CNU) direction according to a receiving level of the CNU and a downlink transmission level adopted by the CLT, and send the transmission path loss to a transmission level determining unit;
- the transmission level determining unit, adapted to determine a transmission level for transmitting uplink data according to the transmission path loss, and send the determined transmission level to a transmitting/receiving unit;
- and
- the transmitting/receiving unit, adapted to transmit the uplink data to the CLT through a branch by using the transmission level;
- wherein the transmission level for transmitting uplink data is higher than the transmission path loss in CLT-CNU direction but lower than level isolating amplitude of the branch to make the branch transmit the uplink data only to the CLT and not to another CNU,
- wherein the transmission level is determined according to a sum of the transmission path loss, a receiving level of the CLT and an adjusting level, the adjusting level meeting a following condition:
- a difference between the transmission level for transmitting the uplink data determined according to the adjusting level and a path loss between the CNU and a branch connecting the CLT and the CNU is not higher than a level isolating amplitude of the branch.
Dependencies are inferred from the claim text.