Radio Access Networks

摘要

Among other things, a communication system comprising remote units and a controller is described. The remote units exchange radio frequency (RF) signals with mobile devices. At least some of the RF signals comprise information destined for, or originating from, a mobile device. The controller comprises one or more modems and is connected to an external network. At least one of the modems is a baseband modem and is configured to pass first data corresponding to the information. The controller is separated from the remote units by an intermediate network over which second data corresponding to the information is carried in frames between the controller and the remote units. The second data comprises baseband data and at least some of the baseband data is compressed in a frequency domain. The remote units and the controller are configured to compress the baseband data for transmission over the intermediate network.

主权项

1. A communication system comprising:
remote units to exchange radio frequency (RF) signals with mobile devices, at least some of the RF signals representing information destined for, or originating from, a mobile device among the mobile devices; a controller connected to an external network, the controller comprising one or more baseband modems, at least one of the baseband modems being configured to communicate with a remote unit among the remote units over an intermediate network between the remote units and the controller; and an adaptive quantizer to produce quantized frequency domain symbols representing the information by quantizing frequency domain symbols; wherein the at least one of the baseband modems is configured to transmit to the remote unit, or to receive from the remote unit, data representing the quantized frequency domain symbols.