Abstract:
This specification describes a method and corresponding system for reducing aggregate forward link transmission power. In one arrangement, a RAN may reduce the aggregate transmission power level in a coverage area by (i) determining which WCDs in the coverage area have a communication error rate that is at least a threshold level of communication error rate, and in response to the determining, (ii) reducing the forward link transmission power level of the determined WCDs. In another arrangement, the RAN may reduce the aggregate transmission power level in a coverage area by reducing the forward link transmission power of WCDs in the coverage area that have (i) a forward link transmission power level that is at least a threshold level of forward link transmission power and (ii) a communication error rate that is at least a threshold level of communication error rate.
Abstract:
While a first entity and a second entity are engaging in a communication session on multiple wireless links, the first entity may adjust the power level at which to send power control commands (PCCs) directed to the second entity based on a respective channel quality at which each wireless link is carrying the communication session. For example, the first entity may identify which wireless link is carrying the communication session at a best channel quality and then cause an increase of a transmission power at which to send PCCs directed to the second entity on the identified wireless link. As another example, the first entity may determine that a respective channel quality of each wireless link satisfies a given condition and then cause an adjustment of a respective transmission power at which to send PCCs directed to the second entity on each wireless link.
Abstract:
Methods and systems use traffic channels to extend wireless coverage areas. In an embodiment, an access node transmits a standard pilot signal over a pilot channel. The access node initially operates in a standard transmission mode, wherein the access node transmits a standard traffic signal over a traffic channel at a first power level. The access node makes a determination to operate in an alternative transmission mode involving the access node generating and transmitting a modified traffic signal comprising (i) a standard traffic signal and (ii) a modified pilot signal. The access node transmits the modified traffic signal at a second power level that is greater than the first power level.
Abstract:
Embodiments disclosed herein provide systems and methods for operating a home wireless communication network to facilitate increasing the rescan timer for a wireless communication device. In a particular embodiment, a method comprises determining a location of a wireless communication device that is roaming on a visited wireless network. The method further includes determining a communication load in a portion of the home wireless network that is proximate to the location of the roaming wireless communication device and processing the communication load to determine if a home network rescan timer in the wireless communication device should be increased. If the home network rescan timer in the wireless communication device should be increased, the method further comprises transferring a first message for delivery to the wireless communication device indicating an increase to the home network rescan timer.
Abstract:
In order to provide better wireless service to wireless communication devices (WCDs) at different altitudes (e.g., on different levels of a high-rise structure), a radio access network (RAN) may include antennas that are configured to provide coverage at these different altitudes. The RAN may assign resources, such as transmit power or frequencies, to wireless coverage areas serving particular altitude ranges in a proportion that is commensurate with the number of WCDs being served by these particular altitude ranges. As a result, RAN and WCD performance may improve.
Abstract:
In order to provide better wireless service to wireless communication devices (WCDs) at different altitudes (e.g., on different levels of a high-rise structure), a radio access network (RAN) may include antennas that are configured to provide coverage at these different altitudes. The RAN may assign an initial transmit power to a particular WCD based on the particular WCD's altitude. For instance, if the particular WCD is above a threshold altitude, the RAN may set the initial transmit power to the WCD to a lower value. However, if the WCD is below the threshold altitude, the RAN may set the initial transmit power to the WCD to a higher value, to overcome low-altitude signal obstructions. As a result, RAN and WCD performance may improve.
Abstract:
A wireless communication system transmits overhead messages including a plurality of message types using a first priority scheme that identifies a first priority for transmitting the plurality of overhead messages based on the plurality of message types. The wireless communication system receives and processes call information to indentify a rate of call a rate of call originations. The rate of call originations is then processed to determine a second priority scheme that identifies a second priority for transmitting the plurality of overhead messages based on the plurality of message types if the rate of call originations exceeds a threshold. The wireless communication system then transmits the overhead messages using the second priority scheme if the rate of call originations exceeds the threshold.
Abstract:
A first base station transceiver wirelessly receives communications from a first user in a code division multiplexing format using a first code assigned to the first base station transceiver. A second base station transceiver wirelessly receives communications from a second user in the code division multiplexing format using a second code assigned to the second base station transceiver. The base station transceivers determine and transfer wireless communication performance measurements. A network control system selects the second base station transceiver to assist the first base station transceiver based on the communication performance measurements. In response, the second base station transceiver wirelessly receives communications from a third user in the code division multiplexing format using the first code assigned to the first base station transceiver.
Abstract:
The invention is directed to methods and systems for controlling resource utilization. In particular, resources in a wireless telecommunications network may be monitored and controlled to eliminate unnecessary resource usage. Channels on the network, and the users thereof, may be monitored to identify under-utilized channels based on predetermined thresholds. If an under-utilized channel is identified, users may be immediately or subsequently transferred to another channel on the network and resources to the under-utilized channel may be eliminated. The channels may be dynamically monitored such that any changes in usage are addressed and users may be transferred multiple times to conserve resources.
Abstract:
Disclosed is a method and system to manage paging channels in a wireless communication network. When the network encounters a situation where the network is to transmit an access response message in a coverage area to a mobile station, the network will determine whether the mobile station is in an access handoff state. If not, the network will transmit the message to the mobile station on a paging channel selected based on the mobile station's identifier. Otherwise, the network will transmit the message to the mobile station on both that paging channel and a default paging channel (e.g., primary channel) selected without consideration of the mobile station's identifier. This process can help avoid an access handoff failure. Further, a radio access network may opt to use the default paging channel in response to the wireless coverage area having a different number of paging channels than an adjacent coverage area.