Power adjustment method, network management system, cable modem termination system, and cable modem
AssigneeHuawei Technologies Co., Ltd.
InventorsXiaolong ZHANG, Tao OUYANG, Fan WANG
Life of this patent
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Abstract
The present invention provides a power adjustment method, a network management system, a CMTS, and a CM. The power adjustment method includes: obtaining, by a network management system, a first SNRCM between two CMs connected to a CMTS, where the first SNRCM represents a signal ratio of a signal sent by the CMTS to a first CM and received by the first CM to a signal sent by a second CM to the CMTS and received by the first CM; and sending, by the network management system, indication information to the CMTS based on the first SNRCM, and a first relationship between an SNRCM and a transmit power at which the CMTS sends a signal to the CM.
Claims14
A power adjustment method, comprising:
- obtaining, by a network management system, a first co-channel mutual interference signal-to-noise ratio (SNRCM) between two cable modems (CMs) connected to a cable modem termination system (CMTS), wherein the first SNRCM represents a signal ratio of a signal sent by the CMTS to a first CM and received by the first CM to a signal sent by a second CM to the CMTS and received by the second CM;
- and
- sending, by the network management system, indication information to the CMTS based on the first SNRCM, and a first relationship between an SNRCM and a transmit power at which the CMTS sends a signal to the CM, wherein the indication information is used to instruct the CMTS to adjust a transmit power at which the CMTS sends the signal to the first CM, so that an SNRCM corresponding to an adjusted transmit power results in a target value of a co-channel mutual interference signal-to-noise ratio between the two CMs.
A power adjustment method, comprising:
- receiving, by a cable modem termination system (CMTS), indication information sent by a network management system;
- and
- adjusting, by the CMTS based on the indication information, a transmit power at which the CMTS sends a signal to a first cable modem (CM), so that an SNRCM corresponding to the adjusted transmit power is a target value of a co-channel mutual interference signal-to-noise ratio, wherein the SNRCM represents a signal ratio of a signal sent by the CMTS to the first CM and received by the first CM to a signal sent by a second CM to the CMTS and received by the first CM.
A network management system, comprising:
- a receiver, a transmitter, a memory and a processor;
- the processor coupled to the memory, the receiver and the transmitter, wherein the memory includes instructions that when executed by the processor cause the system to perform the following:
- obtaining a first co-channel mutual interference signal-to-noise ratio (SNRCM) between two cable modems (CMs) connected to a cable modem termination system (CMTS), wherein the first SNRCM represents a signal ratio of a signal sent by the CMTS to a first CM and received by the first CM to a signal sent by a second CM to the CMTS and received by the first CM;
- and
- sending indication information to the CMTS based on the first SNRCM, and a first relationship between an SNRCM and a transmit power at which the CMTS sends a signal to the CM, wherein the indication information is used to instruct the CMTS to adjust a transmit power at which the CMTS sends the signal to the first CM, so that an SNRCM corresponding to an adjusted transmit power results in a target value of a co-channel mutual interference signal-to-noise ratio between the two CMs.
A cable modem termination system (CMTS), comprising:
- a receiver, a transmitter, a memory and a processor;
- the processor coupled to the memory, the receiver and the transmitter, wherein the memory includes instructions that when executed by the processor cause the CMTS to perform the following:
- receiving indication information sent by a network management system;
- and
- adjusting, based on the indication information, a transmit power at which the CMTS sends a signal to a first cable modem (CM), so that an SNRCM corresponding to the adjusted transmit power is a target value of a co-channel mutual interference signal-to-noise ratio, wherein the SNRCM represents a signal ratio of a signal sent by the CMTS to the first CM and received by the first CM to a signal sent by a second CM to the CMTS and received by the first CM.
Dependencies are inferred from the claim text.