摘要:
Methods and systems are provided for using VoIP-quality metrics to dynamically adjust the EV-DO reverse activity bit (RAB). In one embodiment, an EV-DO access node provides VoIP service to EV-DO access terminals, which comprises (i) providing EV-DO service in a wireless coverage area and (ii) providing transport service over a packet-data network. The access node measures reverse noise rise (RNR) in the wireless coverage area. The access node further measures, over the packet-data network, each VoIP-quality metric in a set of one or more VoIP-quality metrics. The access node then determines whether to set or clear the RAB in the wireless coverage area based at least in part on the measured RNR and at least in part on the one or more measured VoIP-quality metrics.
摘要:
A method and system for prioritizing the optimization of sectors within a cellular network using the minimum least squares error (“MLSE”) algorithm is presented. Each sector's throughput and performance metrics are collected over time. Problem sectors are having one or more performance metrics above or below a specified acceptable value are identified. A MLSE algorithm is applied to problem sectors to determine a weight per metric. Next, for each problem sector, the optimized throughput is calculated by substituting the value of a specific problem metric with an acceptable value. Problem sectors are prioritized in order of how much their throughput would improve as a result of an improvement to the problem metric.
摘要:
Methods and systems for improving the paging of wireless communication devices (WCDs) are introduced. A radio access network (RAN) begins transmitting a series of paging messages to a WCD, and determines that the WCD is operating on a new carrier frequency. The RAN proactively continues the series of paging messages on the new carrier frequency, without waiting for the prescribed interval between paging messages to expire. Alternatively, the RAN proactively restarts the series of paging messages on the new carrier frequency, without waiting for the prescribed interval between paging messages to expire. Both of these embodiments serve to reduce the delay involved in paging WCDs. The RAN may condition its behavior based on the WCD's profile.
摘要:
Methods and systems are provided for using DRCLocks for conducting call admission control. In an embodiment, an access node provides service to a plurality of access terminals on a carrier in a coverage area, where the plurality of access terminals does not include a first access terminal. The access node receives a request for new service on the carrier in the coverage area from the first access terminal over an air interface, and responsively determines whether an aggregate-DRCLock condition is met. If the aggregate-DRCLock condition is met, the access node denies the request for new service.
摘要:
Methods and systems are provided for increasing and decreasing a power level of a forward-link overhead channel. In an embodiment, a BTS (i) receives from at least one mobile station an increase request, each increase request requesting that the BTS increase a power level of a forward-link overhead channel, (ii) makes a first determination that at least a first threshold number of mobile stations have sent an increase request within a first request window, wherein the first request window is a period of time, and (iii) in response to making the first determination, increases the power level of the forward-link overhead channel.
摘要:
Methods and systems are provided for using packet-transport metrics for call-admission control. In an embodiment, a base station provides packet-data service to mobile stations, which comprises (a) providing wireless service over an air interface in a wireless coverage area and (b) providing transport service over a packet-data network. The base station measures, over at least the packet-data network, each packet-transport metric in a set of one or more packet-transport metrics. The base station conducts call-admission control in the wireless coverage area based at least in part on the one or more measured packet-transport metrics.
摘要:
Methods and systems are provided for implementing quality of service (QoS) by using Hybrid ARQ (HARQ) response for triggering the EV-DO reverse activity bit (RAB). In an embodiment, an access node provides service to a plurality of access terminals, the plurality including a select group of one or more access terminals. The access node detects that it has, over a time period, sent more than a threshold number of HARQ negative acknowledgements (NACKs) with respect to reverse-link communication of the select group, and responsively (1) sets the RAB for the first wireless coverage area and (2) instructs the select group of access terminals to ignore the RAB. The select group ignores the RAB, while the rest of the access terminals obey the RAB.
摘要:
A method and system for a wireless communication device (WCD) to perform handover from a first BTS that serves a plurality of WCDs via a first air interface protocol (AIP) and a second BTS that serves another plurality of WCDs via a second AIP. The first BTS includes a modem for data-transfer via the second AIP, and the second BTS includes a modem for data-transfer via the first AIP. While the WCD is engaging in a communication session via the first BTS and first AIP, the modem of the first BTS transmits a handover request via the second AIP. The second BTS receives the request and responsively reserves resources for the WCD to use after handover and notifies the first BTS of the resources via the second AIP. The first BTS notifies the WCD of the resources via the first AIP and the WCD hands over to the second BTS.
摘要:
The disclosure generally relates to service-tier-based regulation of reverse-link activity at an access terminal operating in a wireless access network. An exemplary method involves (a) receiving one or more reverse activity bits from a wireless access network; (b) based 5 at least in part on the received reverse activity bits, determining a Quick Reverse Activity Bit (QRAB) and/or a Filtered Reverse Activity Bit (FRAB); (c) applying a first service-tier filter to the determined QRAB, wherein the first service-tier filter corresponds to a service tier for which the access terminal is authorized; and (d) based at least in part on the service-tier filtered QRAB, determining an adjustment to reverse-link activity of the access terminal. The method may further involve applying a second service-tier filter to the determined FRAB and using the service-tier filtered QRAB in determining the adjustment to reverse-link activity.
摘要:
A mobile station receives forward link signals and transmits reverse link signals for a communication session conducted via a wireless network. A controller maintains a reverse-active set that defines which sectors of the wireless network are used to receive the reverse link signals. When the mobile station transmits a request signal requesting the communication session, the controller may create the reverse-active set to include the sector that received the request signal with the highest signal strength. During the communication session, the signal strengths of the reverse link signals may be monitored in each of a plurality of sectors to obtain reverse-link signal strengths. The controller may maintain the reverse-active set based on the reverse-link signal strengths, adding sectors that report reverse-link signal strengths greater than an add threshold and dropping sectors that report reverse-link signal strengths less than a drop threshold.