US 10,383,150 B2Granted

Random access process in a wireless device and wireeless network

AssigneeOfinno, LLC

InventorsAlireza Babaei, Esmael Hejazi Dinan

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Abstract

A wireless device transmits a plurality of random access preambles (RAPs) via a plurality of random access channel (RACH) resources in response to initiating a random access procedure on a cell. A plurality of random access radio network temporary identifiers (RA-RNTIs) are determined based on the plurality of RACH resources. A physical downlink control channel (PDCCH) may be monitored for at least one random access response (RAR) corresponding to at least one of the plurality of the RAPs. The monitoring may be based, at least in part, on the plurality of RA-RNTIs and performed within a first duration. A first RAR of the at least one RAR corresponding to at least one of the plurality of RAPs may be received. The first RAR may comprise an uplink grant. The uplink grant may comprise transmission parameters for one or more transport blocks (TBs). The one or more TBs may be transmitted.

Claims18

Dependent claims

A method comprising:

transmitting, by a wireless device via a plurality of random access channel (RACH) resources of a secondary cell, a plurality of random access preambles (RAPs) at different times and in response to initiating a random access procedure;
determining a plurality of random access radio network temporary identifiers (RA-RNTIs), corresponding to the plurality of RAPs, based on the plurality of RACH resources;
monitoring, within a duration and after transmitting the plurality of RAPs, a physical downlink control channel (PDCCH) of a primary cell for a plurality of random access responses (RARs) identified by the plurality of RA-RNTIs, wherein the duration starts after the transmitting of a first RAP of the plurality of RAPs and before the transmitting of a second RAP of the plurality of RAPs;
receiving a first RAR of the plurality of RARs corresponding to the plurality of RAPs, wherein the first RAR comprises an uplink grant comprising transmission parameters for one or more transport blocks (TBs);
and
transmitting, by the wireless device, the one or more TBs.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/593,084Filed 11 May 2017 · us provisional application
Priority: 11 May 2016
Published: US 2017/0332410 A116 Nov 2017
Granted: 13 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04W 72/0446
Based on the type of the allocated resource: resources in time domain, e.g. slots or frames
H04W 24/08
Supervisory, monitoring or testing arrangements: testing, supervising or monitoring using real traffic
H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal