Abstract: Systems and methods are described for implementing an inter-frequency measurement procedure in a wireless communication network. A group of wireless devices are selected based on a selection criteria. A first parameter value associated with a first access node is received from the selected group of wireless devices at the first access node. Proximity of a second access node to the first access node is estimated based on the received first parameter value. A second parameter value that is similar to the first parameter value and associated with the first access node is received from a non-selected wireless device. Quality indicators for the non-selected wireless device are monitored at the first access node. A relationship between the received first parameter value and the quality indicators for the non-selected wireless device is determined. An inter-frequency measurement procedure based on the determined relationship is initiated.

Abstract: Systems and methods are described for managing communications of an access node and a relay node. A utilization of a first frequency band that is used for communication between a relay node and wireless devices may be monitored. The relay node may also communicate with an access node to connect to a network. It may be determined that the monitored utilization meets a utilization criteria. One of a second frequency band and a third frequency band may be selected for the relay node based on the determination that the monitored utilization meets the utilization criteria. The selected frequency band may be allocated for communication between the relay node and wireless devices.

Abstract: Systems and methods are described for determining a power option for an access node. Application requirements for a first plurality of wireless devices in communication with a first access node may be identified for each wireless device. The number of wireless devices that comprise a met application requirement may then be determined. When that number meets a first criteria, a plurality of power options for transmitting a first signal may be determined. For each power option, a second number of the first plurality of wireless devices and a third number of wireless devices in communication with a second access node may be estimated. Based on the estimated numbers for the determined power options, a power option may be selected and the first access node may transmit the first signal according to the selected power option.

Abstract: A method and system for setting a hold-timer duration is disclosed. The method involves a first network initially serving a UE by providing the UE with data service, wherein serving the UE includes allocating at least one resource to the UE and using the at least one resource to serve the UE. The method further involves, setting a hold-timer duration for a hold-timer for release of the at least one resource that the first network allocated to the UE, wherein setting the hold-timer duration comprises (i) making at least one determination selected from the group consisting of (a) a determination of a network load of the first network, (b) a determination of a data-service type of the data service, and (c) a determination of an estimated call duration for the UE and (ii) using the at least one determination as a basis to set the hold-timer duration.

Abstract: Systems and methods are described for allocating resources between frequency bands in a wireless network. A wireless device may establish multiple default channels for wireless communication with two or more cells associated with different frequency bands. The default channels on each of the cells may be used to communicate control signals between the two or more cells and the wireless device. Application requirements may be determined and each of the cells may assign a dedicated channel for service, and one of the dedicated channels may be selected to provide service to the wireless device based on the determined application requirements.

Abstract: A method and corresponding apparatus and system for base station implemented access control based on public land mobile network (PLMN) identity. When a base station receives a request to serve a mobile terminal, the base station will determine the mobile terminal's PLMNid and will decide based on that PLMNid whether to permit or deny the request for service. If the base station thereby decides to permit the request for service, then the base station may process the request in a normal manner. Whereas, if the base station thereby decides to deny the request for service, then the base station may reject the request outright.

Abstract: A mobile station involved in a call receives a forward link signal from a radio access network (RAN) and transmits a reverse link signal to the RAN. If the mobile station detects a reception failure of the forward link signal, such as the receipt of an errored frame, the mobile station determines the power level that the RAN used to transmit the forward link signal when the reception failure occurred. If the RAN was already transmitting at its maximum power level, the mobile station may discontinue transmission of the reverse link signal if the next frame from the RAN is also an errored frame. Otherwise, the mobile station defines a test period that is sufficient for the RAN to increase its transmit power to the maximum level. If the reception failure continues throughout the test period, the mobile station discontinues transmission of the reverse link signal.

Abstract: A radio access network (RAN) allocates a resource, such as a forward traffic channel, to a mobile station that is engaged in a call. During the call, the RAN monitors a reverse link signal that is received from the mobile station. If the RAN detects a reception failure, such as the receipt of an errored frame in the reverse link signal, the RAN determines the power level that the mobile station used to transmit the reverse link signal when the reception failure occurred. If the mobile station was already transmitting at its maximum power level, the RAN may immediately release the resource. Otherwise, the RAN defines a test period that is sufficient for the mobile station to increase its transmit power to the maximum level. If the reception failure continues throughout the test period, the RAN may then release the resource.

Abstract: Disclosed is a method and system for managing signaling in wireless communication network. Base stations in the network will be divided into groups, but each base station's coverage area will be deemed a separate respective tracking area, and, for each group of base stations, an intermediary will manage transmission of registration and paging signaling between a paging controller and the group of base stations. In practice, when a tracking-area update (TAU) arrives from a WCD in coverage of the group of base stations, the intermediary may forward the TAU to the paging controller only if the TAU represents the WCD's movement into coverage of the group of base stations. Further, when a paging message arrives for a WCD, the intermediary may forward the paging message to the appropriate base station in the group.

Abstract: Disclosed is a method and system for channel selection. As disclosed, a wireless communication system includes a base station that is configured to operate on a plurality of channels, each having a respective level of port-to-port isolation. The system determines a measure of quality of an air interface between the base station and a user equipment device (UE) served by the base station. The system then selects, from the plurality of channels, a channel on which the base station should serve the UE, where the selecting is based at least in part on (i) the determined measure of quality of the air interface between the base station and the UE and (ii) a correlation between the determined measure of quality of the air interface and the respective level of port-to-port isolation of the channel. Upon the selection, the base station serves the UE on the selected channel.

Abstract: A method and systems for allocating wireless communication resources between access link and relay link. An example method involves determining a remaining battery level of one or more user equipment devices (UEs) that are served by a relay base station. The method also involves establishing an allocation of wireless communication resources between a relay backhaul link and a relay access link based at least on the determined remaining battery level of the one or more UEs. And the method then involves, responsive to the establishing of the allocation of the wireless communication resources, configuring the relay backhaul link and the relay access link based on the established allocation of the wireless communication resources.

Abstract: A base station may provide wireless service on an air interface that defines different mutually exclusive groups of random access channel (RACH) instances for different uses. In one example, the air interface may define a first group of RACH instances having groupings of preambles for designating a value of a characteristic, and define a second group of RACH instances that does not have groupings of preambles. As another example, the air interface may define a first group of RACH instances that has groupings of preambles for designating a value of a first characteristic, and define a second group of RACH instances that has groupings of preambles for designating a value of a second characteristic. The base station may then differentially handle random access requests based on whether the base station receives a preamble in a RACH instance of the first group or rather the second group.

Abstract: A first access node receives from a wireless device in communication with the first access node an identifier of a second access node detected by the wireless device. It is determined that a communication link has not previously been established between the first access node and the second access node based on the identifier. The wireless device is instructed to provide a signal level of a signal from the second access node, and when the signal level of the second access node signal meets a criteria, a communication link is established between the first access node and the second access node.

Abstract: A first access node receives, from a wireless device, a first indicator. This first indicator corresponds to a downlink reference signal power as measured by the wireless device. The first indicator is associated with a second access node. The first access node determines a second indicator. The second indicator corresponds to an uplink reference signal power as measured by the first access node. The second indicator is associated with the wireless device. Based on the first indicator and the second indicator, a handoff of the wireless device from the first access node to a second access node is initiated.

Abstract: A portable wireless access point (WAP) stores its location and is configured to report the stored location to a location-based service provider (LBSP) when a wireless communication device (WCD) is within coverage of the portable WAP and requests a location-based service from the LBSP. While the WCD is within coverage of the portable WAP, the portable WAP receives from the WCD a first list of one or more cellular base stations currently accessible by the WCD. Thereafter, while the WCD is again within coverage of the portable WAP, the portable WAP receives from the WCD a second list of one or more cellular base stations currently accessible by the WCD. The portable WAP compares the first list to the second list, and responsive to determining that the second list is threshold different from the first list, the portable WAP reconfigures itself such that, when the WCD requests the location-based service, the portable WAP does not report the stored location to the WCD.

Abstract: In operation, it is determined that a wireless device is in communication with a first access node using a first frequency band, and that a first coverage area of the first access node includes at least a portion of a second coverage area of a second access node. A coverage proportion of the first coverage area which includes the portion of the second coverage area of the second access node is calculated, and based on the coverage proportion a scan interval is determined. In addition, based on the determined scan interval and an application requirement of an application running on the wireless device, a signal level criteria is determined. When a signal level of the first frequency band meets the signal level criteria the wireless device is instructed to scan for a second frequency band of the second access node using the scan interval.

Abstract: Embodiments disclosed herein may be implemented by a first access node in an access network, such as by an eNodeB in an LTE network, in order to determine an uplink coordinated multipoint (CoMP) mode for one or more other access nodes with which the given access node is coordinating. An example method involves: (a) determining, by a first access node, a central processing unit (CPU) load of a second access node, (b) based at least in part on the CPU load of the second access node, the first access node selecting a coordinated multipoint (CoMP) mode from a plurality of CoMP modes, and (c) sending a CoMP-mode message from the first access node, wherein the CoMP-mode message instructs the second access node to use the selected CoMP mode.

Abstract: According to aspects of the present disclosure, a method and system are provided for managing handover. In accordance with the disclosure, while a source base station serves a UE, the source base station receives from the UE a measurement report providing an indication of a plurality of candidate target base stations having coverage detected by the UE. Responsive to the report, a CSI reporting rate is determined for each of the candidate targets on a per base station basis. A channel coherence is also determined for the UE. The communication system then selects a target base station from the plurality of candidate targets based on (i) the determined channel coherence and (ii) the determined CSI reporting rates, and the source base station then triggers handover of the UE from the source base station to the selected target base station.