Signaling Femto-Cell Deployment Attributes to Assist Interference Mitigation in Heterogeneous Networks
There are disclosed methods of a wireless communication device and a wireless base station. The device is served by a serving base station and receives from a neighbor base station a downlink transmission including a broadcast signal. The device decodes the broadcast signal, and determines a bandwidth attribute associated with the neighbor base station based on the broadcast signal. The device then sends to the serving base station a report including the bandwidth attribute associated with the neighbor base station. The wireless base station receives from a first wireless terminal a signal including a bandwidth attribute associated with a neighbor base station. The base station then schedules a second wireless terminal based on the bandwidth attribute of the neighbor base station, in which the first wireless terminal may be identical to the second wireless terminal.
1 . A method in a wireless communication device, the device being served by a serving base station, the method comprising:
receiving from a neighbor base station a downlink transmission including a broadcast signal;
decoding the broadcast signal;
determining a bandwidth attribute associated with the neighbor base station based on the broadcast signal; and
sending to the serving base station a report including the bandwidth attribute associated with the neighbor base station.
2 . The method according to claim 1 , further comprising receiving a resource allocation assigning a resource non-overlapping with a bandwidth corresponding to the bandwidth attribute.
3 . The method of claim 1 , wherein the broadcast signal includes a master information block.
4 . The method of claim 1 , wherein the broadcast signal includes a system information block.
5 . The method of claim 1 , wherein the bandwidth attribute includes at least one of a downlink bandwidth, an uplink bandwidth, an uplink carrier frequency, or a downlink carrier frequency of the neighbor base station.
6 . The method of claim 1 , further comprising receiving a configuration message from the serving base station including at least one of a physical cell identity of a neighbor base station or a downlink carrier frequency of a neighbor base station.
7 . The method of claim 1 , further comprising receiving the broadcast signal from the neighbor base station during a transmission gap configured by the serving base station.
8 . The method of claim 1 , further comprising receiving a configuration message from the serving base station, the configuration message including information associated with a list of carrier frequencies available to one or more neighbor base stations.
9 . A method of a wireless base station comprising:
receiving from a first wireless terminal a signal including a bandwidth attribute associated with a neighbor base station; and
scheduling a second wireless terminal based on the bandwidth attribute of the neighbor base station, wherein the first wireless terminal may be identical to the second wireless terminal.
10 . The method of claim 9 , wherein the bandwidth attribute includes at least one of a downlink bandwidth, an uplink bandwidth, an uplink carrier frequency, or a downlink carrier frequency of the neighbor base station.
11 . The method of claim 9 , further comprising:
determining a set of transmission resources used on a downlink of the neighbor base station; and
transmitting data to at least the second wireless terminal on a set of resource blocks based on a dedicated reference signal transmission.
12 . The method of claim 9 , further comprising:
determining a set of transmission resources unused on a downlink of the neighbor base station; and
transmitting data to at least the second wireless terminal using a resource unused on the downlink of the neighbor base station.
13 . The method of claim 9 , further comprising:
determining a set of transmission resources unused on an uplink of the neighbor base station; and
scheduling data transmission from the wireless terminal within the set of transmission resources.