US 11,910,447 B2 · Resource mapping and waveform generation for uplink transmission

Abstract

Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to adjust a random access message that is transmitted to a base station in an asynchronous uplink transmission. The UE may use a constrained mapping of time and frequency resources for the random access message or transmit all portions of the message in a continuous transmission. The UE may also adjust the timing of the portions of the message. The base station may use a portion of the message, such as a preamble, to perform channel estimation for another portion of the message, such as a payload, to improve decoding of the transmitted message. Additionally, the UE may configure a waveform of the message to improve the continuous transmission of the message, for example by reducing interference between portions of the message.

Claims26

Dependent claims

A method for wireless communications by a user equipment, comprising:

receiving, from a network entity, system information indicating a mapping between time-frequency resources and random access channel transmissions;
and
transmitting a preamble of a random access channel uplink transmission, a signal during a guard time associated with the preamble, and a payload of the random access channel uplink transmission as a continuous transmission, wherein a transmission time of the payload is advanced by a value of a timing advance adjustment, and a duration of the timing advance adjustment is greater than zero and less than a duration of the guard time associated with the preamble, the signal being based at least in part on the random access channel uplink transmission being asynchronous.

Dependencies are inferred from the claim text.

Resource mapping and waveform generation for uplink transmission

Life of this patent

Resource mapping and waveform generation for uplink transmission

Life of this patent

Abstract

Claims26