Parallel Wireless, Inc.

Ido Shaked

Nimrod Gradus

Benjamin Abramovsky

Efi Dror

Jose Salas

Ori Shmuel

A method of determining a lower bound on users' speed for efficient SRS resource handling for MU-MIMO transmission includes determining an eNodeB (eNB) or gNodeB (gNB) timing of a subframe; determining a User Equipment (UE) timing of the subframe; calculating a timing advance type corresponding to a Round Trip Time (RTT); calculating a distance to a base station corresponding to the Round Trip Time (RTT); calculating a distance traveled by a UE between two points based on the distance to the base station; calculating a user speed based on the distance traveled by the UE; deriving a lower bound based on the user speed; and filtering users that exceed the lower bound on user speed. The filtered users may be not assigned SRS. The non-filtered users may be assigned SRS and may subsequently be sent MU-MIMO transmissions.

Lower bound on users' speed for efficient SRS resource handling for MU-MIMO transmission

A method, computer readable media and a system for determining a Voice over LTE (VoLTE) codec is presented. In one embodiment a method includes discovering a packet header size used in a session using a Silence Insertion Descriptor (SID); inspecting downlink packet sizes coming into a receive buffer; determining when three consecutive packet sizes are greater than zero, then setting a first factor, a second factor, and a third factor equal to zero; calculating a header size; and determining a voice encoding codec by subtracting a header overhead value from the packet size.

Dynamic VoLTE allocation (DVA)

A method is disclosed for reducing processor utilization at a cellular base station, comprising: sending a number of random access preambles in a System Information Block (SIB) that may be less than 64; subtracting the number of random access preambles from 64 to obtain a ceiling of dedicated preambles; and using root sequences to generate a number of dedicated preambles less than or equal to the number of random access preambles, thereby reducing processor utilization relative to generating 64 preambles.

RACH response preamble reduction

A method, computer-readable media and system for providing Random Access Channel (RACH) response preamble prioritization are presented. In one embodiment a method includes receiving, from a RACH receiver at a Preamble Prioritization Element (PPE), a list of detected preambles from a plurality of User Equipment (UE) devices, the preambles having a configured priority for different preamble groups; providing, by the PPE, an ordered prioritized list of the detected preambles; and forwarding, by the PPE to a RACH response element, a predetermined number of detected preambles from the ordered prioritized list.

RACH response preamble prioritization

Methods are disclosed for an adaptive Transmit Time Interval (TTI) Bundling Configuration using a measurement gap. In one embodiment the method includes scheduling allocation of a TTI bundle wherein part of the TTI bundle overlaps a measurement gap; transmitting, by a User Equipment (UE), only a part of the scheduled TTI bundle; and scheduling other UEs to use the resources not used by the scheduled TTI bundle.

Adaptive TTI bundling configuration

A method and system for providing Circuit Switch Fall Back (CSFB) with Radio Access Network (RAN) Information Management (RIM) without network support is presented. In one embodiment, a method includes receiving, by a coordinating server, direct information transfer System Information (SI) messages with RIM Packet Data Unit (PDU) from an eNodeB; sending, by the coordinating server, a RAN-information-request message to a relevant cell, using the routing information in the RIM PDU; collecting and replaying by the cell the SI needed for CFSB to the coordinating server; storing, by the coordinating server, the latest SI information per cell; and replaying, by the coordinating server, the eNodeB with the stored SI information using a MME direct information transfer S1 message.

CSFB with RIM without network support

Systems and methods are provided for providing blind fast network synchronization for reducing LTE public safety products costs, comprising, in one embodiment: determining if location setup is required to mitigate timing offset due to propagation delay from the synchronization source and adjusting downlink timing, and when location setup is required then providing one of manual setup in terms of timing samples, limited power RACH based on SIB2 parameters, and based on observed time difference of arrival and position reference signal; coordinating network listening periods based on graphs and hash function to avoid common silence for two or more neighboring eNodeBs; and providing continuous synchronization using blind carrier estimation.

Growing community of inventors

Alfei Menashe, Israel

Ido Shaked