US 2019/0356426 A1 · DEVICE AND METHOD TO ALLOW CROSS-TRANSMISSION TIME INTERVAL (TTI) SWITCHING AND HYBRID AUTOMATIC REPEAT REQUEST (HARQ) OPERATION IN A NEW RADIO NETWORK

Abstract

A device of a User Equipment (UE) includes a soft buffer including a plurality of soft buffer partitions to store a plurality of soft bits for a number of hybrid automatic retransmission request (HARQ) processes, wherein the number of HARQ processes includes first HARQ processes corresponding to a first Time Transmission Interval (TTI) Type of a first duration (TTI Type 1), and second HARQ processes corresponding to a second TTI Type of a second duration (TTI Type 2) shorter than the first duration. The device further includes processing circuitry to communicate with a base station in a cellular network, the processing circuitry further to effect a dynamic switching between a TTI Type 1 communication mode and a TTI Type 2 communication mode, and to selectively access the soft buffer partitions to perform, based on the switching, at least one of the first HARQ processes and the second HARQ process.

Claims26

Dependent claims

-25. (canceled)

A device of a New Radio (NR) User Equipment (UE), the device including a radio frequency circuitry interface (RF circuitry interface) and processing circuitry coupled to the RF circuitry interface, the processing circuitry to:

determine a maximum reference number of downlink (DL) hybrid automatic repeat request (HARQ) processes for HARQ retransmissions to a base station, the maximum reference number of DL HARQ processes being based on a duration of a Time Transmission Interval (TTI) Type for transmissions from the base station to the UE;
and
encode the HARQ retransmissions to the base station in a cellular network based on the maximum reference number of DL HARQ processes.

A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by a device of a New Radio (NR) User Equipment (UE), enable the device to implement operations at the UE, the operations comprising:

determining a maximum reference number of downlink (DL) hybrid automatic repeat request (HARQ) processes for HARQ retransmissions to a base station, the maximum reference number of DL HARQ processes being based on a duration of a Time Transmission Interval (TTI) Type for transmissions from the base station to the UE;
and
encoding the HARQ retransmissions to the base station in a cellular network based on the maximum reference number of DL HARQ processes.

Dependencies are inferred from the claim text.

Facts

Application

16/476,528Filed 22 Mar 2018

Priority

23 Mar 2017

Published

21 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04L 1/1822
Automatic repetition systems, e.g. Van Duuren systems: involving configuration of automatic repeat request [ARQ] with parallel processes
H04L 1/1835
Arrangements specially adapted for the receiver end: buffer management
H04W 72/0446
Based on the type of the allocated resource: resources in time domain, e.g. slots or frames
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal

Device and method to allow cross-transmission time interval (tti) switching and hybrid automatic repeat request (harq) operation in a new radio network

Life of this patent

Device and method to allow cross-transmission time interval (tti) switching and hybrid automatic repeat request (harq) operation in a new radio network

Life of this patent

Abstract

Claims26