US 2020/0028766 A1 · METHOD, BASE STATION, AND USER EQUIPMENT FOR DETERMINING CHANNEL LOSS

Abstract

The application pertains to determining a rank of channel loss extent. A base station sends to a terminal a signaling indicating that there are N ranks of channel loss extent. Each rank has a corresponding number of random access preamble repetitions. The base station receives from the terminal device one or more transmissions of a random access preamble in a first number of repetitions of the random access preamble. The base station determines the rank of channel loss extent according to a random access preamble group in which the received random access preamble is located, or the first number of repetitions of the received random access preamble. A channel loss is a reference signal received power (RSRP). After determining the rank of channel loss extent, the base station determines a second number of repetitions corresponding to the determined rank of channel loss extent, for sending or receiving uplink/downlink information.

Claims19

Dependent claims

A non-transitory computer-readable medium storing instructions which, when executed by a processor in a network device, cause the network device to:

send radio resource control common signaling to a terminal device, wherein the radio resource control common signaling indicates that there are N ranks of channel loss extent, each rank has a corresponding number of random access preamble repetitions, and N 1;
receive, in an enhanced random access opportunity, from the terminal device, one or more transmissions of a random access preamble in a first number of repetitions of the random access preamble, wherein the enhanced random access opportunity embodies a time and/or frequency resource location of a repeated random access preamble;
and
determine a rank of the channel loss extent according to the received random access preamble;
wherein a channel loss is a reference signal received power (RSRP).

2 more elements

A non-transitory computer-readable medium storing instructions which, when executed by a processor in a terminal device, cause the terminal device to:

receive a radio resource control common signaling from a network device, wherein the radio resource control common signaling indicates that there are N ranks of channel loss extent, each rank has a corresponding number of random access preamble repetitions, and N≥1;
determine the rank of channel loss extent according to a reference signal received power (RSRP);
determine a first number of repetitions of a random access preamble in an enhanced random access opportunity corresponding to the rank of channel loss extent, wherein the enhanced random access opportunity embodies a time and/or frequency resource location of a repeated random access preamble;
send the random access preamble according to the determined first number of repetitions of the random access preamble to the network device.

1 more element

Dependencies are inferred from the claim text.

Method, base station, and user equipment for determining channel loss

Life of this patent

Method, base station, and user equipment for determining channel loss

Life of this patent

Abstract

Claims19