Configuring a distributed antenna system
Systems and methods for developing a configuration plan for communication transport links of a distributed antenna system are provided. The distributed antenna system includes a unit communicating with remote antenna units over the communication transport links. The unit receives signals from base stations. Characteristics of each of the signals are determined. The characteristics include, for each signal, a frequency occupancy, a digital bandwidth, and a coverage zone to which to provide the signal. The frequency occupancy includes the minimum frequency component and the maximum frequency component of the signal. The digital bandwidth is a bandwidth for communicating the signal via the communication transport links. A hardware capability of the distributed antenna system, such as a respective available bandwidth for each communication transport link, is also determined. The configuration plan for transporting the digital representations of the signals is determined based on the hardware capability and the characteristics of the signals.
1. A method for developing a configuration plan for communication transport links of a distributed antenna system, the distributed antenna system having a unit in communication over the communication transport links with remote antenna units for one or more coverage zones, the unit receiving a plurality of signals from at least one base station, the method comprising:
determining, for each signal of the plurality of signals, characteristics comprising a respective frequency occupancy of the signal, a respective coverage zone to which to provide the signal, and a respective bandwidth for communicating the signal via at least one of the communication transport links, wherein the frequency occupancy comprises the minimum frequency component and the maximum frequency component of the signal;
determining a respective available bandwidth of each of the communication transport links between the unit and the remote antenna units that transmit signals in the one or more coverage zones;
generating the configuration plan based on the determined characteristics of the plurality of signals and the determined respective available bandwidth of each of the communication transport links, wherein the configuration plan includes assignments of different subsets of the plurality of signals to the communication transport links for transmitting the subsets of the plurality of signals to the one or more coverage zones; and
outputting the configuration plan.
2. The method of claim 1 , wherein determining the respective coverage zone for each signal comprises determining an association of coverage zones with respective coverage sets, wherein each coverage zone represents a subset of the remote antenna units, wherein each coverage set represents a subset of signals of the plurality of signals that are to be transported to a common coverage zone.
3. The method of claim 2 , wherein the subset of signals of the plurality of signals comprises band sets, each of the band sets comprising a set of signals having an association with the common coverage zone, wherein each of the band sets is represented by a respective band stream.
4. The method of claim 3 , further comprising generating each band stream by combining a respective set of signals.
5. The method of claim 4 , wherein generating the configuration plan comprises:
for each band set, determining a respective band set bandwidth for communicating a digital representation of all signals in the band set based on the frequency occupancy of all signals in the band set; and
generating the configuration plan based on the determined respective available bandwidth of each communication transport link, the band set bandwidth of each band set, and associations between the coverage zones and the respective coverage sets,
wherein the configuration plan further specifies the communication transport links via which to deliver band streams representing the band sets to the one or more coverage zones.
6. The method of claim 3 , wherein determining the association of coverage zones with respective coverage sets comprises, for each signal of the plurality of signals:
receiving a respective coverage zone to which to provide the signal;
assigning the signal to a respective band set having a plurality of signals associated with a respective band and the respective coverage zone, the respective band set being represented by a respective band stream having a respective band stream bandwidth; and
assigning the respective band set to a respective coverage set, the respective coverage set being associated with the respective coverage zone and comprising a plurality of band streams.
7. The method of claim 3 , wherein determining the respective coverage zone for each signal of the plurality of signals comprises:
associating each coverage zone of the one or more coverage zones with a subset of the remote antenna units;
for each signal of the plurality of signals,
determining a band associated with the signal; and
receiving an identification of a respective coverage zone to which to provide the signal;
determining band sets based on the one or more coverage zones and bands associated with the plurality of signals, each of the band sets representing a subset of the plurality of signals associated with respective coverage zone;
determining one or more coverage sets based on the band sets and the one or more coverage zones, each coverage set being associated with at least one of the one or more coverage zones and representing a subset of the band sets.
8. A distributed antenna system, comprising:
a plurality of remote antenna units grouped into one or more coverage zones, each coverage zone comprising a subset of the remote antenna units;
a unit in communication over communication transport links with the plurality of remote antenna units for one or more coverage zones, the unit configured to receive a plurality of signals from at least one base station, the unit comprising a configuration module, wherein the configuration module is configured to:
determine, for each signal of the plurality of signals, characteristics comprising a respective frequency occupancy of the signal, a respective coverage zone to which to provide the signal, and a respective bandwidth for communicating the signal via at least one of the communication transport links, wherein the frequency occupancy comprises the minimum frequency component and the maximum frequency component of the signal;
determine a respective available bandwidth of each of the communication transport links between the unit and the remote antenna units that transmit signals in the one or more coverage zones;
generate a configuration plan based on the determined characteristics of the signals and the determined respective available bandwidth of each of the communication transport links, wherein the configuration plan includes assignments of different subsets of the received signals to the communication transport links for transmitting the subsets of the received signals to the one or more coverage zones; and
output the configuration plan.
9. The distributed antenna system of claim 8 , wherein determining the respective coverage zone for each signal comprises receiving an association of coverage zones with coverage sets, wherein each coverage zone represents the subset of the remote antenna units, wherein each coverage set represents a subset of signals of the plurality of signals that are to be transported to a common coverage zone.
10. The distributed antenna system of claim 9 , wherein the subset of signals of the plurality of signals comprises band sets, each of the band sets comprising a set of signals having an association with the common coverage zone, wherein each of the band sets is represented by a band stream.
11. The distributed antenna system of claim 10 , wherein the configuration plan is generated based on bandwidths for communicating digital representations of the band sets, wherein a respective bandwidth of each band set is determined by the frequencies of the signals in the set of signals.
12. The distributed antenna system of claim 11 , wherein the configuration module is further configured to generate the configuration plan based on:
a number of communication transport links between a remote antenna unit and the unit;
a determination of whether one or more communication transport links are shared by two or more remote antenna units; and
a maximum number of band streams capable of being carried by the communication transport links.
13. The distributed antenna system of claim 10 , wherein determining the respective coverage zone for each signal of the plurality of signals comprises:
associating each coverage zone of the one or more coverage zones with a subset of the remote antenna units;
for each signal of the plurality of signals,
determining a band associated with the signal; and
receiving an identification of a coverage zone of the plurality of coverage zones to which to provide the signal;
determining band sets based on the one or more coverage zones and bands associated with the plurality of signals, each of the band sets representing a subset of the plurality of signals;
determining one or more coverage sets based on the band sets and the plurality of coverage zones, each coverage set being associated with at least one of the plurality of coverage zones and representing a subset of the band sets.
14. The distributed antenna system of claim 10 , wherein generating the configuration plan comprises:
for each band set, determining a respective band set bandwidth based on the bandwidth of each signal in the band set; and
determining the configuration plan based on the determined respective available bandwidth of each communication transport link, the respective band set bandwidth of each band set, and associations between the coverage zones and the respective coverage sets,
wherein the configuration plan further specifies the communication transport links via which to deliver band streams representing the band sets to the coverage zones.
15. A distributed antenna system comprising:
a unit configured to receive a plurality of signals from a base station and communicate the plurality of signals to remote antenna units for a plurality of coverage zones via communication transport links of the distributed antenna system;
a processor disposed in the unit and configured to:
determine, for each signal of the plurality of signals, characteristics comprising a respective frequency occupancy of the signal, a respective coverage zone to which to provide the signal, and a respective bandwidth for communicating the signal via at least one of the communication transport links, wherein the frequency occupancy comprises the minimum frequency component and the maximum frequency component of the signal;
determine a respective available bandwidth of each of the communication transport links between the unit and the remote antenna units that transmit signals in the plurality of coverage zones;
generate a configuration plan based on the determined characteristics of the signals and the determined respective available bandwidth of each of the communication transport links, wherein the configuration plan includes assignments of different subsets of the received signals to the communication transport links for transmitting the subsets of the received signals to the plurality of coverage zones; and
output the configuration plan.
16. The distributed antenna system of claim 15 , wherein determining the respective coverage zone for each signal comprises receiving an association of coverage zones with coverage sets, wherein each coverage zone represents the subset of the remote antenna units, wherein each coverage set represents a subset of signals of the plurality of signals that are to be transported to a common coverage zone.
17. The distributed antenna system of claim 16 , wherein the subset of signals of the plurality of signals comprise band sets, each of the band sets comprising a set of signals having an association with the common coverage zone, the band set being represented by a band stream.
18. The distributed antenna system of claim 17 , wherein the configuration plan is generated based on bandwidths for communicating digital representations of the band sets, wherein a respective bandwidth of each band set is determined by the frequencies of the signals in the set of signals.
19. The distributed antenna system of claim 18 , wherein the processor is further configured to generate the configuration plan based on:
a number of communication transport links between a remote antenna unit and the unit;
a determination of whether one or more communication transport links are shared by two or more remote antenna units; and
a maximum number of band streams capable of being carried by the plurality of communication transport links.
20. The distributed antenna system of claim 17 , wherein determining the respective coverage zone for each signal of the plurality of signals comprises:
associating each coverage zone of the plurality of coverage zones with a subset of the remote antenna units;
for each signal of the plurality of signals,
determining a band associated with the signal; and
receiving an identification of a coverage zone of the plurality of coverage zones to which to provide the signal;
determining band sets based on the plurality of coverage zones and bands of the plurality of signals, each of the band sets representing a subset of the plurality of signals;
determining one or more coverage sets based on the band sets and the plurality of coverage zones, each coverage set being associated with at least one of the plurality of coverage zones and representing a subset of the band sets.
21. The distributed antenna system of claim 10 , wherein generating the configuration plan comprises:
for each band set, determining a band set bandwidth based on the bandwidth of each signal in the band set; and
determining the configuration plan based on the determined respective available bandwidth of each communication transport link, the band set bandwidth of each band set, and associations between the plurality of coverage zones and the respective coverage sets,
wherein the configuration plan further specifies the communication transport links via which to deliver band streams representing the band sets to the plurality of coverage zones.