US 2018/0124827 A1 · METHOD AND APPARATUS FOR PERFORMING CONTENTION RESOLUTION FOR CONTENTION BASED PUSCH TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

Abstract

A method and apparatus for performing contention resolution for contention based physical uplink shared channel (CB-PUSCH) transmission in a wireless communication system is provided. A user equipment (UE) performs a first hybrid automatic repeat request (HARQ) transmission on a CB-PUSCH to a network, and determines whether contention on the CB-PUSCH is resolved. The CB-PUSCH is a channel for UL data allocated by a pre-configured UL grant which is shared by multiple UEs. If a UL grant includes an identity of the UE, it is determined that contention on the CB-PUSCH is resolved. The UE may perform a second HARQ transmission for the first HARQ transmission on a PUSCH to the network by using the UL grant.

Claims15

Dependent claims

A method for performing, by a user equipment (UE), contention resolution for contention based physical uplink shared channel (CB-PUSCH) transmission in a wireless communication system, the method comprising:

performing a first hybrid automatic repeat request (HARQ) transmission on a CB-PUSCH to a network;
and
determining whether contention on the CB-PUSCH is resolved,
wherein the CB-PUSCH is a channel for UL data allocated by a pre-configured UL grant which is shared by multiple UEs.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/569,305Filed 2 May 2016

Priority

30 Apr 2015

Published

3 May 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04W 74/08
Wireless channel access: non-scheduled access, e.g. ALOHA
H04L 1/18
In which the return channel carries supervisory signals, e.g. repetition request signals: automatic repetition systems, e.g. Van Duuren systems
H04L 1/1816
Hybrid protocols; Hybrid automatic repeat request [HARQ]: with retransmission of the same, encoded, message
H04L 1/1822
Automatic repetition systems, e.g. Van Duuren systems: involving configuration of automatic repeat request [ARQ] with parallel processes

Method and apparatus for performing contention resolution for contention based pusch transmission in wireless communication system

Life of this patent

Method and apparatus for performing contention resolution for contention based pusch transmission in wireless communication system

Life of this patent

Abstract

Claims15