Patent ID: 8848638

Claim:
A method of operating a network node that serves a host cell in a cellular communication system, the method comprising: at one or more first time intervals, transmitting first control channel information on a control channel that extends over a first bandwidth of a radiofrequency spectrum, wherein the first control channel communicates information that is necessary to enable a first type of communication device to receive data from the host cell, the first type of communication device being capable of receiving a signal having the first bandwidth of the radiofrequency spectrum; at one or more second time intervals, transmitting second control channel information on a second control channel of a first M-cell, wherein the second control channel occupies a second bandwidth of the radiofrequency spectrum, and wherein the second bandwidth is smaller than the first bandwidth, and wherein the one or more second time intervals do not coincide with any of the one or more first time intervals, whereby a second type of communication device having reduced receive bandwidth capabilities compared to those of the first type of communication device is made capable of being served by the network node; and transmitting information to the second type of communication device, wherein the information informs on what part of the radiofrequency spectrum the second bandwidth of the radiofrequency spectrum is located, wherein the information that informs on what part of the radiofrequency spectrum the second bandwidth of the radiofrequency spectrum is located is transmitted on a channel that occupies a third bandwidth of the radiofrequency spectrum, wherein the third bandwidth is smaller than the first bandwidth, and wherein a frequency-wise location of the second bandwidth of the radiofrequency spectrum differs from a frequency-wise location of the third bandwidth of the radiofrequency spectrum.