US 12,267,874 B2
Communications device, infrastructure equipment and methods
Vivek Sharma, Basingstoke (GB); Yassin Aden Awad, Basingstoke (GB); Yuxin Wei, Basingstoke (GB); and Hideji Wakabayashi, Basingstoke (GB)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/785,400
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jan. 4, 2021, PCT No. PCT/EP2021/050018
§ 371(c)(1), (2) Date Jun. 15, 2022,
PCT Pub. No. WO2021/144156, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 20152077 (EP), filed on Jan. 15, 2020.
Prior Publication US 2023/0041305 A1, Feb. 9, 2023
Int. Cl. H04W 74/0833 (2024.01); H04L 1/00 (2006.01); H04W 28/06 (2009.01)
CPC H04W 74/0833 (2013.01) [H04L 1/0003 (2013.01); H04W 28/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of transmitting data by a communications device in a wireless communications network, the method comprising:
determining an amount of uplink data to be transmitted by the communications device to the wireless communications network, and either
transitioning to a connected state if the determined amount of the uplink data is greater than a first threshold or, if the determined amount of the uplink data is less than the first threshold,
selecting a random access preamble from one of a plurality of groups of random access preambles,
selecting modulation and coding for transmitting the uplink data, and
transmitting a random access message on a wireless access interface to the wireless communications network as part of a random access procedure, the random access message including the selected random access preamble from one of the plurality of groups of the random access preambles,
wherein the group of the random access preambles from which the random access preamble is selected is determined according to at least one of an estimate of a transmission path loss for the communications device and the determined amount of the uplink data for transmission, and the modulation and coding for transmitting the uplink data is selected from one or more modulation and coding scheme levels allocated for the determined group of random access preambles, and
wherein the determining the amount of the uplink data to be transmitted by the communications device comprises:
determining an amount of data present in an input buffer,
inflating the size of the determined amount of the uplink data to be transmitted in the input buffer to a size larger than the amount of the uplink data in the input buffer in order to exceed the first predetermined threshold so that the communications device transitions to the connected state.