Abstract:
A wireless network includes first-configuration sectors with a first frequency assignment and second-configuration sectors with a second frequency assignment. When served by a first-configuration sector that borders a second-configuration sector, the mobile station receives (i) a neighbor list that identifies neighbor sectors of the primary sector, including the second-configuration sector, (ii) a primary-sector reference distance between a transmitter for the primary sector and a reference point in the primary sector, and (iii) a neighbor-sector reference distance between a transmitter for the second-configuration sector and the reference point. Based on the reference distances, the mobile station calculates a border distance between the primary sector's transmitter and a border between the sectors. The mobile station compares its distance from the primary sector's transmitter to the primary-sector reference distance and/or border distance. Based on the comparison, the mobile station selects a scanning algorithm that determines when to scan for the second-configuration sector.
Abstract:
When a base station encounters a trigger to reduce the number of carriers on which the base station serves a wireless commination device (WCD), the base station will responsively reduce the number of carriers but will also responsively increase the number of multiple-input multiple-output (MIMO) layers on which the base station serves the WCD, to help offset for the reduction in number of serving carriers.
Abstract:
Disclosed is a method and system to help rectify errors in operation of a wireless communication system. When a base station detects one or more errors in operation of the system, the base station will automatically request and receive from an adjacent base station a set of one or more operational parameters that the adjacent base station is set to provide, and the base station will substitute the received operational parameters for those that the base station is set to provide to UEs. This process may thereby help to avoid recurrence of certain errors in operation of the system.
Abstract:
An example embodiment may involve determining a quality of service level for network traffic associated with a WCD. The WCD may be served by an air interface of a RAN. The air interface may include a primary signaling channel and a secondary signaling channel, where the primary signaling channel simultaneously spans all of a plurality of contiguous subcarrier frequencies and the secondary signaling channel does not simultaneously span all of the plurality of contiguous subcarrier frequencies. The example embodiment may further involve, possibly based on the quality of service level for the network traffic associated with the WCD, selecting the primary signaling channel or the secondary signaling channel for transmission of a signaling message to the WCD. The example embodiment may also involve transmitting the signaling message to the WCD via the selected signaling channel.
Abstract:
Disclosed is a method and corresponding apparatus to make use of hybrid-ARQ repetition factors as a way to differentiate service quality to various mobile terminals. Depending on a mobile terminal's subscription service class, such as the mobile terminal's PLMN, the mobile terminal may be made to use a particular hybrid-ARQ repetition factor. For instance, a mobile terminal of a high service class may be made to use a low hybrid-ARQ repetition factor, which may help the mobile terminal experience less downlink transmission delay and thus a higher downlink data rate. Whereas, a mobile terminal of a low service class may be made to use a high hybrid-ARQ repetition factor, which may cause the mobile terminal to experience more downlink transmission delay and thus a lower downlink data rate, and may further free up downlink transmission resources to facilitate better service for other mobile terminals.
Abstract:
A system and method for customizing call setup based on predicted call quality is disclosed. When a radio access network (RAN) device receives a request to set up a call between an originating wireless communication device (WCD) and a terminating WCD, the RAN device can predict that the call will use particular coding technique. The prediction can be made prior to alerting either of the originating or terminating WCDs of the new call, and can be based on a historical call record of calls originated by the originating WCD and/or terminated by the terminating WCD. The RAN device can then alert at least one of the originating WCD or the terminating WCD of the call with an alerting signal that indicates the particular coding technique will be used for the call.
Abstract:
A UE may be configured to support wireless communication in two or more frequency bands. In some embodiments, the UE initiates a first wireless communication session in a first frequency band of the two or more frequency bands, and in response to initiating the wireless communication session in the first frequency band, the UE prevents itself from communicating in a second frequency band of the set of two or more frequency bands until the first wireless communication session has ended. Some embodiments further include subsequently enabling the UE to communicate in the second frequency band of the set of two or more frequency bands in response to ending the first wireless communication session in the first frequency band.
Abstract:
A method and system for assigning resources to user equipment devices (UEs) is disclosed. A communication system may include a wireless network that allocates, among a plurality of UEs, resources on a given carrier. The wireless network may support carrier aggregation using a combination of the given carrier and at least one other carrier. The method involves the wireless network making a determination that (i) a first UE is operating without carrier aggregation and (ii) a second UE is operating with carrier aggregation. The method further involves, in response to making the determination, the wireless network giving the first UE higher priority than the second UE for resource assignment on the given carrier.
Abstract:
Disclosed is a method and system for accounting for network signaling values in handover decisions. A serving base station may receive a message from a served user equipment device (UE) indicating that handover condition is met for handing over to one or more target base stations. The serving base station can determine a respective network signaling value being used by each target base station, and thereby determine how much uplink attenuation the UE would be directed to apply for each potential handover. The serving base station can also determine its downlink power and that the target base stations as measured by the UE. The serving base station can then make a handover decision taking account of a change in uplink attenuation for each potential handover.
Abstract:
The air interface between a first node and a second node will span a frequency bandwidth defining two distinct portions, and acknowledgement message transmission such as Hybrid-ARQ message transmission will make use of those distinct portions to distinguish ACKs from NACKs. In particular, ACKs may be restricted to being transmitted within one portion of the frequency bandwidth, while NACKs may be restricted to being transmitted in different portion of the frequency bandwidth. Consequently, when the first node transmits data to the second node and receives an acknowledgement message sent in response from the second node, the first node may determine, based on which portion of the frequency bandwidth the first node received the acknowledgement message in, whether the acknowledgement message is an ACK or rather a NACK.