Patelb
2013-03-12, 11:16 PM
The quality of the LTE RF design will be evaluated using planning Tool. This will be based on a combination of area predictions and Monte Carlo simulations. It is important to note that the emphasis of the design evaluation will be on focusing where demand is and where potential LTE users are located
The following are a non comprehensive list of key performance indicators that will be used to validate the quality of the LTE RF network design.
Reference Signal Received Power (RSRP)
Reference signal received power (RSRP) identifies the signal level of the Reference Signal. It is defined as the linear average over the power contributions of the resource elements that carry cell-specific reference signals within the considered measurement frequency bandwidth.
Design KPI for RSRP:
10MHz Channel Bandwidth (700MHz & AWS): -98 dBm /-103 dBm
5MHz Channel Bandwidth (700MHz & AWS): -98 dBm /-103 dBm
A minimum of 95% of the weighted average of the LTE design service area (Cluster or Polygon) must meet the RSRP targets specified above. The criterion of 95% is based on a weighting using the same clutter weights used for traffic spreading. The target specified above is after taking into consideration the indoor loss values assigned per clutter type (In-building losses enabled).
Note
: The targets for AWS are only applicable in cases where the AWS design is being carried out as a standalone design and not be used as a capacity lay er over an existing 700 MHz layer LTE network.
Reference Signal Received Quality (RSRQ)
Reference Signal Received Quality (RSRQ) identifies the quality of the Reference Signal. It is defined as the ratio N×RSRP/(E-UTRA carrier RSSI), where N is the number of RB"s of the E-UTRA carrier RSSI measurement bandwidth. The measurements in the nume rator and denominator shall be made over the same set of resource blocks.
E-UTRA Carrier Received Signal Strength Indicator (RSSI), comprises the linear average of the total received power observed only in OFDM symbols containing reference symbols for antenna port 0, in the measurement bandwidth, over N number of resource blocks by the UE from all sources, including co-channel serving and non-serving cells,adjacent chan
nel interference, thermal noise etc. The Design KPIis based on traffic load—traffic load is discussed later in Sections 3.5 and 5.5.
Design KPI for RSRQ:
2 Transmit Paths:
50% Load: -15 dB
100% Load: - 18 dB
A minimum of 95% of the weighted average of the LTE design service area (Cluster or Polygon) must meet the RSRQ targets specified above. The criterion of 95% is based on a weighting using the same clutter weights used for traffic spreading.
Overlapping Zones (Number of Servers)
The overlapping zones (number of servers) criteria are used to establish the quality of the RF propagation environment from an interference point of view. The goal of the number of servers‘ criteria is to establish dominance and reduce the waste of network resources and degraded network performance that may
The following are a non comprehensive list of key performance indicators that will be used to validate the quality of the LTE RF network design.
Reference Signal Received Power (RSRP)
Reference signal received power (RSRP) identifies the signal level of the Reference Signal. It is defined as the linear average over the power contributions of the resource elements that carry cell-specific reference signals within the considered measurement frequency bandwidth.
Design KPI for RSRP:
10MHz Channel Bandwidth (700MHz & AWS): -98 dBm /-103 dBm
5MHz Channel Bandwidth (700MHz & AWS): -98 dBm /-103 dBm
A minimum of 95% of the weighted average of the LTE design service area (Cluster or Polygon) must meet the RSRP targets specified above. The criterion of 95% is based on a weighting using the same clutter weights used for traffic spreading. The target specified above is after taking into consideration the indoor loss values assigned per clutter type (In-building losses enabled).
Note
: The targets for AWS are only applicable in cases where the AWS design is being carried out as a standalone design and not be used as a capacity lay er over an existing 700 MHz layer LTE network.
Reference Signal Received Quality (RSRQ)
Reference Signal Received Quality (RSRQ) identifies the quality of the Reference Signal. It is defined as the ratio N×RSRP/(E-UTRA carrier RSSI), where N is the number of RB"s of the E-UTRA carrier RSSI measurement bandwidth. The measurements in the nume rator and denominator shall be made over the same set of resource blocks.
E-UTRA Carrier Received Signal Strength Indicator (RSSI), comprises the linear average of the total received power observed only in OFDM symbols containing reference symbols for antenna port 0, in the measurement bandwidth, over N number of resource blocks by the UE from all sources, including co-channel serving and non-serving cells,adjacent chan
nel interference, thermal noise etc. The Design KPIis based on traffic load—traffic load is discussed later in Sections 3.5 and 5.5.
Design KPI for RSRQ:
2 Transmit Paths:
50% Load: -15 dB
100% Load: - 18 dB
A minimum of 95% of the weighted average of the LTE design service area (Cluster or Polygon) must meet the RSRQ targets specified above. The criterion of 95% is based on a weighting using the same clutter weights used for traffic spreading.
Overlapping Zones (Number of Servers)
The overlapping zones (number of servers) criteria are used to establish the quality of the RF propagation environment from an interference point of view. The goal of the number of servers‘ criteria is to establish dominance and reduce the waste of network resources and degraded network performance that may