US 2018/0324852 A1 · URLLC Support Using Grant Free Transmissions

Abstract

A user equipment (UE) selects first and second radio resources from respective first and second pools of radio resources. In one example these are primarily allocated for contention-free and scheduling-based channel access, respectively. Content to duplicate in parallel communications is selected based at least on a characteristic of uplink data waiting to be sent (such as size) and/or on the selected first and second radio resources (such as timing difference between them). The UE transmits the selected content on each of the selected first and second radio resources. In the examples the content to duplicate was selected from among the uplink data to send and a scheduling request message. In various embodiments one of these transmissions indicates it's a duplicate, and the duplicated scheduling request message is transmitted on the first resource with the uplink data. These teachings are particularly useful for URLLC data.

Claims25

Dependent claims

A method comprising:

selecting a first radio resource from a first pool of radio resources;
selecting a second radio resource from a second pool of radio resources;
selecting which content to duplicate on parallel communications based at least on a characteristic of uplink data waiting to be sent and/or on the selected first and second radio resources;
and
transmitting the selected content on each of the selected first and second radio resources.

2 more elements

An apparatus comprising:

at least one computer readable memory storing computer program instructions;
and
at least one processor;
wherein the computer readable memory with the computer program instructions is configured, with the at least one processor, to cause the apparatus to perform actions comprising:
select a first radio resource from a first pool of radio resources;
select a second radio resource from a second pool of radio resources;
select which content to duplicate in parallel communications based at least on a characteristic of uplink data waiting to be sent and/or on the selected first and second radio resources;
and
transmit the selected content on each of the selected first and second radio resources.

6 more elements

A computer readable memory storing computer program instructions that, when executed by one or more processors, cause an apparatus to perform actions comprising:

selecting a first radio resource from a first pool of radio resources;
selecting a second radio resource from a second pool of radio resources;
selecting which content to duplicate in parallel communications based at least on a characteristic of uplink data waiting to be sent and/or on the selected first and second radio resources;
and
transmitting the selected content on each of the selected first and second radio resources.

2 more elements

Dependencies are inferred from the claim text.

URLLC Support Using Grant Free Transmissions

Life of this patent

URLLC Support Using Grant Free Transmissions

Life of this patent

Abstract

Claims25