Timing determination techniques for 5G radio access network cells
AssigneeApple Inc.
InventorsGang Xiong, Debdeep Chatterjee, Ajit Nimbalker, Hong He
Life of this patent
Estimating the term…
Abstract
Disclosed herein are timing determination techniques for 5G radio access network (RAN) cells. According to various such techniques, during a random access procedure, a user equipment (UE) may receive a grant of resources for an uplink (UL) data transmission in a random access response (RAR) message. The UE may identify a scheduled slot for the UL data transmission based on a received slot of the RAR message and an applicable slot offset value. The applicable slot offset value may indicate a number of slots by which the received slot precedes the scheduled slot. The applicable slot offset value may be identified using the various techniques described herein.
Claims17
An apparatus for a User Equipment (UE), comprising:
- a memory;
- and
- one or more processors coupled to the memory, wherein the one or more processors are configured to:
- receive, from a base station, a grant of resources for an uplink (UL) data transmission in a random access response (RAR) message during a random access procedure;
- identify a scheduled slot for the UL data transmission based on a received slot of the RAR message and an applicable slot offset value indicating a number of slots by which the received slot precedes the scheduled slot;
- identify the applicable slot offset value based on a value set and an indicator comprised in the RAR message, wherein the applicable slot offset value comprises a delay value, wherein the applicable slot offset value is identified by adding the delay value to a base value, and wherein the base value is indicated in a system information block (SIB);
- and
- transmit the UL data over a physical uplink shared channel (PUSCH) during the scheduled slot.
An apparatus for a User Equipment (UE), comprising:
- a memory;
- and
- one or more processors coupled to the memory, wherein the one or more processors are configured to:
- receive, from a base station, a grant of resources for an uplink (UL) data transmission in a random access response (RAR) message during a random access procedure;
- identify a scheduled slot for the UL data transmission based on a received slot of the RAR message and an applicable slot offset value indicating a number of slots by which the received slot precedes the scheduled slot;
- identify a delay value from a value set based on an indicator comprised in the RAR message;
- identify the applicable slot offset value by adding the delay value to a base value, wherein the applicable slot offset value is identified based on information comprised in a system information block (SIB);
- and
- transmit the UL data over a physical uplink shared channel (PUSCH) during the scheduled slot.
An apparatus for a base station, comprising:
- a memory;
- and
- one or more processors coupled to the memory, wherein the one or more processors are configured to:
- transmit, to a User Equipment (UE), a grant of resources for an uplink (UL) data transmission in a random access response (RAR) message during a random access procedure;
- and
- receive the UL data over a physical uplink shared channel (PUSCH) from the UE during a scheduled slot, wherein the scheduled slot is based on a slot of the RAR message and an applicable slot offset value indicating a number of slots by which the slot of the RAR message precedes the scheduled slot;
- transmit a system information block (SIB) before the random access procedure, wherein the SIB indicates a base value;
- wherein the applicable slot offset value is based on a value set and an indicator comprised in the RAR message, wherein the applicable slot offset value comprises a delay value, and wherein the applicable slot offset value is identified by adding the delay value to the base value.
Dependencies are inferred from the claim text.