Present disclosure disclose a voice signal processing method, includes: receiving a first voice coded signal from a first terminal; performing voice decoding processing on the first voice coded signal to obtain a voice decoding parameter and a first voice decoded signal; performing, by using the voice decoding parameter, virtual bandwidth extension processing to obtain a bandwidth extension voice decoded signal corresponding to the first voice decoded signal; after combining the first voice decoded signal and the bandwidth extension voice decoded signal, performing voice coding processing to obtain a second voice coded signal; and sending the second voice coded signal to a second terminal that establishes a call connection to the first terminal, where a maximum frequency bandwidth supported by the first terminal is less than a maximum frequency bandwidth supported by the second terminal. Thus, Service quality of terminals that have asymmetric maximum frequency bandwidth support capabilities can be improved.

Present disclosure disclose a voice signal processing method, includes: receiving a first voice coded signal from a first terminal; performing voice decoding processing on the first voice coded signal to obtain a voice decoding parameter and a first voice decoded signal; performing, by using the voice decoding parameter, virtual bandwidth extension processing to obtain a bandwidth extension voice decoded signal corresponding to the first voice decoded signal; after combining the first voice decoded signal and the bandwidth extension voice decoded signal, performing voice coding processing to obtain a second voice coded signal; and sending the second voice coded signal to a second terminal that establishes a call connection to the first terminal, where a maximum frequency bandwidth supported by the first terminal is less than a maximum frequency bandwidth supported by the second terminal. Thus, Service quality of terminals that have asymmetric maximum frequency bandwidth support capabilities can be improved.

Apparatus and methods for providing small cell backhaul are disclosed. A network node that acts as a gateway for a local communication network to a main communication network through a bonded link with the main communication network also provides a wireless communication module with a backhaul communication link to the main communication network through its bonded link. A switch module in the network node switches communication traffic between the local communication network, the wireless communication module and the bonded link to the main communication network. The network node may power the wireless communication module utilizing remote power provided by the main communication network, the local communication network, and/or a local source of power. Apparatus and methods for providing a transparent bonded link through a network access multiplexer are also disclosed, including management of the bonded link and of nodes subtending from the bonded link.

Embodiments of the present invention provide a method, and an apparatus for supporting a non-vector line. The method includes: selecting n non-vector lines T.sub.L from lines that are in an initializing stage, where n is an integer greater than or equal to 1; controlling to perform no further initializing for other lines that are in the initializing stage except the T.sub.L until the T.sub.L fully enters a data transmission stage; and before the T.sub.L enters the data transmission stage, estimating a far-end crosstalk coefficient C.sub.TL-SV from the T.sub.L to a vector line S.sub.V that is in the data transmission stage, where the C.sub.TL-SV is used in signal processing to eliminate far-end crosstalk caused by the T.sub.L to the S.sub.V.

In a conversation communication system, a facial image of the communicator is stored, a distance between the communicator and a display and the direction of the face of the communicator are detected. It is determined whether or not the conversation communication is to be continued according to the detected distance and the detected facial direction. When the detected facial direction is a direction facing the display from the front, the conversation communication is to be continued. On the other hand, in a case where the detected facial direction is different, when the detected distance increases afterward, if any of the following conditions (1) and (2) is satisfied, the conversation communication is terminated: (1) the distance is undetectable; and (2) the detected facial direction is, for equal to or longer than a preset period of time, maintained at the direction different from the direction facing the display from the front.

System for use in combination with a remote node powered by a first number of lines, each line thereof being capable of providing power to the remote node in an active state of the line and not being capable of providing power to the remote node in a non-active state of the line; said system comprising: a second number of convertors; and a power control part configured for controlling the power provided by each line of said first number of lines to a converter of said second number of converters, in function of the time, depending of the states of the first number of lines.

Described is a method for performance estimation of a communication device. The method comprises: executing active probing to determine active probing data; reading operational data which includes data related to channel and its noise condition, latency and counter values related to user data traffic between the communication device and another communication device, wherein the operational data is relevant to the current settings of the communication device; and training a performance estimation algorithm for the communication device according to the active probing data and the operational data.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium for communicating between an operational asset and a backend network that include the actions of receiving first data from an operational asset through a first communication interface that is configured to communicate with an operational asset, and where the first data is formatted according to a first data format that is specific to the operational asset. Processing the first data according to an asset template to generate second data, where the second data includes the first data and being formatted according to a second data format that is specific to the backend network. Causing the second data to be transmitted to the backend network by a second communication interface that is configured to communicate with a backend network.

A device for limiting crosstalk between vectoring modems connected to a group of communication lines comprises a subgroup determining element that obtains information of the division into subgroups, each subgroup being made up of lines experiencing cross-talk from each other, and assigns operational pilot sequences to the group according to the division, an operational sequence transmission control element that transmits the operational sequences on the lines to the modems, which sequences are mutually orthogonal to each other and each communication line receives a corresponding sequence, and a corrective action determining element that obtains cross-talk measurements related to the transmitted operational pilot sequences and determines, for each subgroup, cross-talk and corrective action based on measurements made for a number of sequence symbols, which number corresponds to the minimum number required for obtaining mutually orthogonal pilot sequences within the subgroup.

A method is provided which comprises: adjusting a plurality of times a transmit power to vary between a first setting and a second setting on a first Digital Subscriber Line (DSL line) to optimize energy consumption for the first DSL line; measuring or estimating a change in a performance of a second DSL line neighboring the first DSL line caused by a change in crosstalk on the second DSL line generated by the first DSL line in response to adjusting the transmit power of the first DSL line; and identifying one or more DSL lines among a plurality of DSL lines determined to safely operate in a low-power mode by identifying which of the plurality of DSL lines exhibit a crosstalk coupling to neighboring DSL lines below a specified threshold.