US 11,751,266 B2
Mobile communications network, infrastructure equipment, communications device and methods
Vivek Sharma, Basingstoke (GB); Brian Alexander Martin, Basingstoke (GB); Shinichiro Tsuda, Basingstoke (GB); and Hideji Wakabayashi, Basingstoke (GB)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on Oct. 13, 2021, as Appl. No. 17/499,902.
Application 17/499,902 is a continuation of application No. 16/608,199, granted, now 11,178,713, previously published as PCT/EP2018/055800, filed on Mar. 8, 2018.
Claims priority of application No. 17168565 (EP), filed on Apr. 27, 2017.
Prior Publication US 2022/0030655 A1, Jan. 27, 2022
Int. Cl. H04W 76/15 (2018.01); H04W 76/19 (2018.01); H04W 12/037 (2021.01); H04W 72/04 (2023.01)
CPC H04W 76/15 (2018.02) [H04W 12/037 (2021.01); H04W 72/04 (2013.01); H04W 76/19 (2018.02)] 16 Claims
OG exemplary drawing
 
1. A communications device for use in a mobile communications network, the mobile communications network comprising one or more other infrastructure equipment, the infrastructure equipment and other infrastructure equipment each providing wireless connectivity within at least one cell, wherein the communications device comprises:
transmitter circuitry configured to transmit signals to the infrastructure equipment;
receiver circuitry configured to receive signals from the infrastructure equipment; and
controller circuitry configured to control the transmitter circuitry and the receiver circuitry
to communicate wirelessly with at least a first of the infrastructure equipment including by the use of a radio bearer,
to receive a reconfiguration message from the first infrastructure equipment to effect re-establishment of its radio link control protocol layer, and subsequently
to re-establish its radio link control protocol layer in response to the reconfiguration message, wherein,
subsequent to re-establishing its radio link control protocol layer, the controller circuitry is configured to control storage of received data packets with headers that have or have not been changed by the first infrastructure equipment into separate buffers of the communications device.