Abstract:
According to the present disclosure, a base station may be configured to serve a user equipment device (UE) over two or more beams using different modulation and coding schemes (MCSs) in response to determining that another base station is concurrently serving another UE at nearly the same location. For instance, a first base station may initially serve a first UE over two beams using the same MCS on both beams. The first base station may then determine that a second base station is serving a second UE at nearly the same location. And in response, the first base station may then change the MCS on at least one of the two beams so that the first base station then serves the first UE using different MCSs on the two beams. Serving the first UE with different MCSs concurrently on multiple beams may help to improve the first UE's reception.
Abstract:
Disclosed are methods and systems to facilitate handover of a UE away from a primary carrier of a base station, despite a primary carrier having a channel quality that is at or above a channel quality threshold of the primary carrier. In particular, a wireless communication system may serve the UE with carrier aggregation service using (i) a first carrier as a primary carrier for the UE and (ii) a second carrier as a secondary carrier for the UE. During the serving, while a channel quality of the primary carrier is at or above a first threshold quality, the system may make a determination that a channel quality of the secondary carrier is below a second threshold quality. In response to at least making the determination, the system may carry out a handover of the UE from the primary carrier of the first base station to another carrier.
Abstract:
A method for controlling tune-away of a UE from its serving base station during handover, where the UE is configured to tune away from its serving base station at scheduled tune-away times, is disclosed herein. The method includes, between a first scheduled tune-away time and a next, second scheduled tune-away time, (a) determining that the UE has threshold weak signal strength from the serving base station, and (b) responsive to determining that the UE has threshold weak signal strength from the serving base station, determining a remaining battery energy level of the UE. The method further includes, based at least in part on the determined remaining battery energy level of the UE, causing the UE to tune away from the serving base station before the second scheduled tune-away time to scan for target coverage.
Abstract:
As disclosed, while a wireless communication device (WCD) is idling on a particular carrier frequency of a base station, the base station may receive a message broadcast by that base station, the message specifying multiple relative sets of priority levels defined for a set of carrier frequencies and correlating each of the multiple relative sets of priority levels with respective different WCD operational characteristics. In particular, the message may specify a first correlation of one relative set of priority levels with one WCD operational characteristic and includes a second correlation of a different relative set of priority levels with a different WCD operational characteristic. The WCD may select one of the relative sets of priority levels responsive to the WCD having a WCD operational characteristic that the message correlates with the selected relative set of priority levels. The WCD may then apply the selected relative set of priority levels.
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.
Abstract:
Method and systems for selecting transmission rates for overhead communications within an RF network are described. The overhead communications can comprise network-access overhead communications, such as master information blocks in accordance with an LTE standard or access parameters messages in accordance with a CDMA standard. Selection of the transmission rate(s) can be based on conditions of a wireless network in which a network node and user equipment (UE) devices operate. A network node can determine the wireless network condition. A UE device can transmit measurement data to the network node for determining the wireless network condition. The network node can transmit, at a first rate, a first sequence of the overhead communications, such as one more overhead messages, detect the wireless network condition, select a second rate based on the detected network condition, and then transmit, at the second rate, a second sequence of the overhead communications.
Abstract:
A wireless communication device (WCD) is configured to receive and maintain concurrently in data storage at least two different IMS transfer-addresses, such as one for use when the WCD's transition between radio access networks (RANs) is a single-radio transition and the other for use when the WCD's transition between RANs is a dual-radio transition, and/or one for use when the WCD's transition between RANs is packet-to-packet and the other for use when the WCD's transition between RANs is packet-to-circuit. Upon transitioning between RANs, the WCD may then select the appropriate one of these IMS transfer-addresses and transmit the selected IMS transfer-address to a network node to facilitate handover of an ongoing call to be via the WCD's new serving RAN.
Abstract:
One or more indications of signal quality as measured by a wireless communication device (WCD) served by a radio access network (RAN) may be transmitted from the WCD to the RAN. A determination may be made that the one or more indications of signal quality meet or exceed a threshold signal quality. Possibly based on the one or more indications of signal quality meeting or exceeding the threshold signal quality, the WCD may bundle at least some hybrid automatic repeat request (HARD) acknowledgments that the WCD transmits to the RAN.
Abstract:
A base station or other entity in a wireless communication system detects high use of air interface resources and responsively identifies one or more served devices that have reported threshold similar coverage quality for the base station and for an adjacent base station. And the base station applies a limit to allocation of resources for each such identified device.
Abstract:
Disclosed herein is a method carried out by a router. The method includes the router receiving a data packet originated by a wireless communication device (WCD) being served by a base station. The method also includes the router determining an air-interface resource on which the base station is serving the WCD. After receiving the data packet, the router determines a routing prioritization for the data packet based at least in part on the determined air-interface resource. The router may then route the data packet in accordance with the determined routing prioritization.