Sprint Spectrum L.p.

T-mobile Usa, Inc.

Sprint Communications Comapny L.p.

Julio Costa

Muralidhar Malreddy

Ryan Sanford Talley

Bhanu Prakash Voruganti

Shilpa Kowdley Srinivas

Antoine T Tran

Emile Minh Tran

Jack Branson Sippel, Ii

Paul Tracy

John W Davis

Kyle C Allen

Murali Malreddy

Lawrence Charles Gassman

A first UE can receive a request to communicate from a second UE. The first UE and the second UE can exchange a first cryptographic key and a second cryptographic key associated with the first and the second UE, respectively. The first UE can receive an encrypted unique identifier associated with the second UE, where the unique identifier identifies a second wireless telecommunication network serving the second UE. The first UE can authenticate the second UE by sending the encrypted unique identifier to a first wireless telecommunication network and sending a request to confirm that the unique identifier is valid. The first UE can receive, from the first wireless telecommunication network, a confirmation that the unique identifier is valid. Upon receiving the confirmation, the first UE can engage in a communication with the second UE.

Enabling peer-to-peer authentication between at least two mobile devices associated with one or more wireless telecommunication networks

Solutions for accelerating cell search and selection by a user equipment (UE) include: detecting, by the UE, a network exit; determining, by the UE, a network reentry condition; based on at least mobility data for the UE and a network connectivity context history, determining, by the UE, using a machine learning (ML) component, a set of priority reentry cells; attempting network reentry with the set of priority reentry cells; and based on at least failing network reentry with the set of priority reentry cells, attempting network reentry with a cell search. In some examples, mobility data for the UE is also used for determining the set of priority reentry cells. By searching the set of priority reentry cells first , rather than starting with a blind search, the UE may save not only battery power, but also reconnect to the network more quickly, thereby improving the user experience.

Accelerated cell search and selection

Solutions for focused cellular network paging of a user equipment (UE) include: detecting, by a network, a network exit of the UE from a last known cell and an exit condition for the UE; determining, by the network, a network paging condition; based on at least the last known cell and the exit condition for the UE, determining, by the network, a set of priority paging cells; paging the UE with the set of priority paging cells; and based on at least failing to receive a response by paging the UE with the set of priority paging cells, paging the UE with a larger set of cells. In some examples, the network topology is also used for determining the set of priority paging cells. By starting with the set of priority paging cells, rather than wider global paging, fewer cells are used for paging, thereby saving network bandwidth.

Focused cellular network paging

Based on measurement reports reported to a base station by a plurality of UEs, the base station or a data system may dynamically configure a location of a physical random access control channel (PRACH) defined by the base station such that the PRACH is located in an optimal location. In one example, a data system may receive a plurality of subband CQI reports that includes one or more subband CQI values reported to the base station by each of a plurality of UEs served by the base station. The data system may determine, based on the plurality of subband CQI reports, that a particular range of resource blocks has a highest reported downlink air interface quality. And the data system may cause the base station define a PRACH instance in the particular range of resource blocks for carrying random access requests from the plurality of UEs to the base station.

Optimizing uplink synchronization via dynamic PRACH configuration

A wireless communication network serves data content to a wireless user device. An access wireless relay wirelessly receives a user request for the data content from the wireless user device. The access wireless relay wirelessly transfers the data content to the wireless user device when it stores the data content. When the access wireless relay does not store the data content, it transfers content requests having a Time-To-Live (TTL). Serving wireless relays receive the content requests during the TTL. The serving wireless relays transfer the data content to the access wireless relay if they store the data content. The serving wireless relays forward the content requests with the TTL when they do not store the data content. Terminating wireless relays receive the content requests after the TTL. The terminating wireless relays stop forwarding the content requests.

Wireless communication network with wireless relays that serve data content to wireless user devices

A mechanism for S1 handover triggered by a target eNodeB. When a UE is being served by a source eNodeB and detects threshold strong coverage of a target cell, the UE sends an RRC connection request to the target eNodeB and informs the target eNodeB that the UE is being served by the source eNodeB. In response, the target eNodeB engages in a process to invoke handover of the UE to the target eNodeB, without the target eNodeB having received from the MME or from the source eNodeB a handover request for the handover of the UE.

Target initiated S1 handover of user equipment

A wireless relay wirelessly transmits Commercial Mobile Alert System (CMAS) information to wireless user devices. In the wireless relay, network circuitry wirelessly receives a CMAS broadcast having the CMAS information from a wireless communication network. The network circuitry responsively generates a wireless relay instruction having the CMAS information. The network circuitry transfers the wireless relay instruction to user circuitry in the wireless relay. The user circuitry receives the wireless relay instruction having the CMAS information, and in response, wirelessly transmits the CMAS information to the wireless user devices.

Wireless relay delivery of commercial mobile alert system (CMAS) information to wireless user devices

Disclosed are methods and systems for a UE to expedite handover through advanced obtaining and reporting of a network identifier. The UE could detect for possible handover a target cell that a target base station provides. In response to the detecting, the UE could determine that the target base station is of a particular class of base stations and, responsive to determining that the target base station is of the particular class, could determine and report the network identifier to a source base station serving the UE. In this way, if the source base station does not have a record of the network identifier, the source base station would not need to request the UE to determine and report that identifier, and could instead use the reported network identifier as basis to engage in handover signaling to process handover of the UE to the target cell, thereby expediting handover.

Selective advanced obtaining and reporting of identification of detected cell to facilitate expedited handover

A method for dynamically selecting one of a plurality of base stations for provision of timing information. A base station compares satellite signal strengths measured at satellite-positioning-system receivers of a plurality of base stations, such as the plurality of base stations in a local area network (LAN) for instance. The base station then selects one of the plurality of base stations to provide timing information based at least in part on the comparison, such as the one base station having the greatest satellite signal strength for instance. The base station then operates according to timing information indicated by satellite data from the selected base station. Advantageously, this method can help to increase the accuracy and reliability of the timing information.

Method for sharing satellite positioning system information among nearby base stations

A method for configuring a first base station to use a coverage area identifier is described. For instance, a computing system may determine that coverage provided by the first base station overlaps with coverage provided by a second base station. Further, of a plurality of third base stations that also provide coverage overlapping the coverage provided by the second base station, the computing system may identify one or more third base stations having an extent of handover with the determined second base station that is below a threshold extent of handover. The computing system may then select, as the coverage area identifier to be assigned to the first base station, a coverage area identifier that is also assigned to a particular one of the one or more identified third base stations. The computing system may configure the first base station to use the selected coverage area identifier.

Growing community of inventors

Tampa, FL, United States of America

Julio Costa