US 10,833,820 B2 · User terminal and radio base station

Abstract

The present invention is designed so that communication can be carries out adequately even when the number of component carriers that can be configured in a user terminal is expanded from that in existing systems. According to one aspect of the present invention, a user terminal communicates by using a plurality of component carriers (CCs), and has a data buffering section that stores uplink data, a generating section that generates a BSR MAC CE (Medium Access Control Control Element), in which a given index corresponding to a buffer size is included, based on BSR (Buffer Status Report) tables, in which amounts of uplink data that is stored (buffer sizes) and indices are associated, and a transmission section that transmits the BSR MAC CE, and one of the BSR tables is a first BSR table for use when more than five CCs are configured in the user terminal.

Claims3

Dependent claims

A user terminal comprising:

a processor that generates a Buffer Status Report Medium Access Control Control Element (BSR MAC CE) including an index that corresponds to a buffer size of a Logical Channel Group (LCG) defined for such LCGs that a maximum number of LCGs is greater than 4, based on associations between buffer sizes and indices, the buffer size being an uplink data amount;
and
a transmitter that transmits the BSR MAC CE,
wherein a number of LCGs used by the user terminal is greater than 4 without regard to the number of cells with which the user terminal is configured, and
at least one of the associations is used when the user terminal is configured with more than five cells.

2 more elements

Dependencies are inferred from the claim text.

User terminal and radio base station

Life of this patent

User terminal and radio base station

Life of this patent

Abstract

Claims3