H04L5/0076

NON-STANDALONE ARCHITECTURE FRAME ALIGNMENT
20230074029 · 2023-03-09 ·

Techniques for measuring and reducing signal misalignment in a dual connectivity environment are discussed herein. When using Non-Standalone Architecture (NSA), a device initially communicates with a network using a Long-Term Evolution (LTE) connection. After the LTE connection is established, an LTE base station may instruct the device to measure signal strength of a neighboring New Radio (NR) cell during a specified LTE measurement gap. When the NR cell is implemented by an indoor NR base station, the NR signal may not be sufficiently synchronized with the LTE signal and the device may be unable to measure the NR signal during the measurement gap. In these cases, the device can determine the frame timing difference between the LTE and NR signals, obtain an adjusted measurement gap that reduces any measurement gap misalignment, and attempt to measure the signal strength of the NR cell using the adjusted measurement gap.

METHOD AND SYSTEM FOR IMPROVED SOUNDING REFERENCE SIGNAL (SRS) OVERHEAD AND FLEXIBLE REUSE SCHEME

Methods and systems for transmitting one or more sounding reference signal (SRS) resource sets for one or more usages are disclosed herein. In one embodiment, a method performed by a user equipment includes: receiving one or more configuration parameters from a wireless network node; determining, based on the one or more configuration parameters, one or more usages for a plurality of SRS resources within the one or more SRS resource sets; and transmitting an SRS using the plurality of SRS resources configured for the one or more usages.

System and method for an adaptive frame structure with filtered OFDM

Different filtered-orthogonal frequency division multiplexing (f-OFDM) frame formats may be used to achieve the spectrum flexibility. F-OFDM waveforms are generated by applying a pulse shaping digital filter to an orthogonal frequency division multiplexed (OFDM) signal. Different frame formats may be used to carry different traffic types as well as to adapt to characteristics of the channel, transmitter, receiver, or serving cell. The different frame formats may utilize different sub-carrier (SC) spacings and/or cyclic prefix (CP) lengths. In some embodiments, the different frame formats also utilize different symbol durations and/or transmission time interval (TTI) lengths.

Control of Reliability Target based Transmissions on LBT Carriers

A wireless device (11, 12) determines a set of carriers. The carriers each require a listen-before-talk, LBT, procedure before transmitting on the carrier. Further, the wireless device (11, 12) determines a reliability target for a wireless transmission from the wireless device (11, 12) to the wireless communication network, in particular to an access node (101-1, 101-2, 101-3, 101-4) of the wireless communication network. Depending on the reliability target, the wireless device (11, 12) controls aggregation of carriers from the set for redundantly 10 performing the wireless transmission on the aggregated carriers.

Logical channel prioritization procedure for sidelink logical channels

A user equipment in a wireless communications system supporting direct communication between user equipments selects a sidelink destination group (ProSe destination) associated with a sidelink logical channel having a highest logical channel priority among sidelink logical channels, which have data available for transmission in a sidelink control period (SC period) and which have not previously been selected in the same SC period, wherein each of the sidelink logical channels belongs to a sidelink destination group, each of the sidelink logical channels is allocated to a logical channel group (LCG) depending on a priority of said each sidelink logical channel and on a priority of the logical channel group, and the logical channel group is defined per sidelink destination group. The user equipment allocates radio resources to sidelink logical channels belonging to the selected sidelink destination group in decreasing priority order, and transmits the data using the allocated radio resources.

USER EQUIPMENT AND BASE STATION
20230209554 · 2023-06-29 ·

A user equipment, UE, comprising at least one processor, and memory storing instructions that, when executed by the at least one processor, cause the UE at least to determine how to use resources of a repetition-based uplink grant based on a criterion related to at least one data packet prepared for a transmission on resources associated with the repetition-based uplink grant.

System and method for multiple point transmission in a communications system
09838089 · 2017-12-05 · ·

A system and method for multiple point transmission in a communications system are provided. A method for multiple point transmission operation comprises modifying a configuration of a radio bearer for use in a multiple point transmission to a user equipment according to operating condition information of the user equipment, reconfiguring the radio bearer according to the modified configuration, and initiating a multiple point transmission to the user equipment using the reconfigured radio bearer.

Non-standalone architecture frame alignment

Techniques for measuring and reducing signal misalignment in a dual connectivity environment are discussed herein. When using Non-Standalone Architecture (NSA), a device initially communicates with a network using a Long-Term Evolution (LTE) connection. After the LTE connection is established, an LTE base station may instruct the device to measure signal strength of a neighboring New Radio (NR) cell during a specified LTE measurement gap. When the NR cell is implemented by an indoor NR base station, the NR signal may not be sufficiently synchronized with the LTE signal and the device may be unable to measure the NR signal during the measurement gap. In these cases, the device can determine the frame timing difference between the LTE and NR signals, obtain an adjusted measurement gap that reduces any measurement gap misalignment, and attempt to measure the signal strength of the NR cell using the adjusted measurement gap.

MANAGING RESOURCES FOR COOPERATIVE UPLINK TRANSMISSION
20170318586 · 2017-11-02 ·

Certain aspects of the present disclosure relate to techniques for managing resources for cooperative uplink transmission. A base station may determine different groups for a plurality of user equipments (UEs) participating in cooperative uplink transmission, and transmit mode configurations indicating whether or not UEs in each group are configured to transmit data as a data source or to relay data received from another UE configured to transmit data as a data source. A UE may participate, with one or more other UEs, in cooperative uplink transmission to the base station, wherein each UE belongs to a group. The UE may determine, for a transmission time interval (TTI), at least one operation to perform for the cooperative uplink transmission based, at least in part, on a group number of a group to which the UE belongs and an index of the TTI.

NON-STANDALONE ARCHITECTURE FRAME ALIGNMENT

Techniques for measuring and reducing signal misalignment in a dual connectivity environment are discussed herein. When using Non-Standalone Architecture (NSA), a device initially communicates with a network using a Long-Term Evolution (LTE) connection. After the LTE connection is established, an LTE base station may instruct the device to measure signal strength of a neighboring New Radio (NR) cell during a specified LTE measurement gap. When the NR cell is implemented by an indoor NR base station, the NR signal may not be sufficiently synchronized with the LTE signal and the device may be unable to measure the NR signal during the measurement gap. In these cases, the device can determine the frame timing difference between the LTE and NR signals, obtain an adjusted measurement gap that reduces any measurement gap misalignment, and attempt to measure the signal strength of the NR cell using the adjusted measurement gap.