US 11,310,834 B2 · Priority handling for a random access message that includes a preamble and a payload

Abstract

This disclosure provides systems, methods and apparatus for assisting a user equipment (UE) with balancing quality of service (QoS) requirements (such as access latency or reliability requirements) and consumption of high priority network resources (such as for load balancing) when transmitting a random access message (RAM) in a two-step random access channel (RACH) procedure. As a result, the UE may be capable of satisfying QoS requirements for the RAM while reducing an impact of transmission of the RAM on other uplink transmissions. Furthermore, some techniques and apparatuses described herein assist a UE with prioritizing portions of the RAM in different UE operating modes, such as a dual connectivity mode, a carrier aggregation mode, or a supplemental uplink mode. Some techniques and apparatuses described herein employ cross-carrier scheduling, dynamic power sharing, or dynamic power control to achieve these and other performance improvements.

Claims30

Dependent claims

A method of wireless communication performed by an apparatus of a user equipment (UE), comprising:

determining a first transmit power for transmission of a preamble of a random access message based at least in part on one or more carriers,
wherein the one or more carriers are to transmit the preamble or a payload of the random access message, and
wherein a priority of one or more of the preamble or the payload is associated with the one or more carriers;
determining a second transmit power for transmission of the payload associated with the one or more carriers,
wherein the payload includes a physical uplink shared channel (PUSCH) communication, and
wherein the random access message includes both the preamble and the payload;
transmitting the preamble using the first transmit power;
and
transmitting the payload using the second transmit power,
wherein the first transmit power and the second transmit power are associated with a transmission prioritization used to accommodate a power constraint, and
wherein transmitting the preamble using the first transmit power is prioritized over other uplink transmissions that overlap with the preamble.

8 more elements

An apparatus for wireless communication, comprising:

a memory;
and
one or more processors coupled to the memory, the one or more processors configured to:
determine a first transmit power for transmission of a preamble of a random access message based at least in part on one or more carriers,
wherein the one or more carriers are to transmit the preamble or a payload of the random access message, and
wherein a priority of one or more of the preamble or the payload is associated with the one or more carriers;
determine a second transmit power for transmission of the payload associated with the one or more carriers,
wherein the payload includes a physical uplink shared channel (PUSCH) communication, and
wherein the random access message includes both the preamble and the payload;
transmit the preamble using the first transmit power;
and
transmit the payload using the second transmit power,
wherein the first transmit power and the second transmit power are associated with a transmission prioritization used to accommodate a power constraint, and
wherein transmitting the preamble using the first transmit power is prioritized over other uplink transmission that overlap with the preamble.

11 more elements

Dependencies are inferred from the claim text.

Priority handling for a random access message that includes a preamble and a payload

Life of this patent

Priority handling for a random access message that includes a preamble and a payload

Life of this patent

Abstract

Claims30