US 12,132,679 B2
Communications device, infrastructure equipment and methods
Yassin Aden Awad, Basingstoke (GB); Shin Horng Wong, Basingstoke (GB); Kazuyuki Shimezawa, Basingstoke (GB); Vivek Sharma, Basingstoke (GB); and Martin Warwick Beale, Basingstoke (GB)
Assigned to SONY CORPORATION, Tokyo (JP)
Appl. No. 17/262,746
Filed by Sony Corporation, Tokyo (JP)
PCT Filed Jul. 18, 2019, PCT No. PCT/EP2019/069365
§ 371(c)(1), (2) Date Jan. 25, 2021,
PCT Pub. No. WO2020/020738, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 18185911 (EP), filed on Jul. 26, 2018.
Prior Publication US 2021/0143967 A1, May 13, 2021
Int. Cl. H04L 5/00 (2006.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01)
CPC H04L 5/0053 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0098 (2013.01); H04W 72/0453 (2013.01); H04W 72/23 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A communications device for communicating in a wireless communications network, the communications device comprising:
a transceiver configured to transmit signals and to receive signals on a wireless access interface of the wireless communications network using a plurality of activated bandwidth parts, each of the bandwidth parts being formed from communications resources of a carrier within a carrier bandwidth, and
a processor configured to control the transceiver to transmit the signals and to receive the signals, wherein the processor is configured in combination with the transceiver
to transmit signals or to receive signals using a first of the plurality of activated bandwidth parts,
to receive, via the first activated bandwidth part, an indication of one or more bandwidth parts to be activated,
to select one or more bandwidth parts to be de-activated in accordance with a maximum number of activated bandwidth parts permitted for the communications device, and
in response to selection of the one or more bandwidth parts, to de-activate the selected one or more bandwidth parts,
wherein the bandwidth parts are activated and de-activated as uplink and downlink pairs based on at least one of sub-carrier spacing, symbol duration and cyclic prefix length of the bandwidth parts, and the first active bandwidth part is a primary bandwidth part that always remains active, and
the bandwidth parts differ in one or more of the sub-carrier spacing, the symbol duration and the cyclic prefix length.