Patent ID: 8873499
Filing Date: 2014-10-28
Classification: H04J,H04L,H04W

Abstract:
1. A base station apparatus for receiving at least an uplink control channel from multiple user apparatuses in accordance with a single-carrier scheme, comprising: a processor comprising: an extraction unit configured to extract at least one of acknowledgement information and channel condition information from an uplink control channel, the acknowledgement information indicating a positive response or a negative response to a downlink data channel, the channel condition information indicating a downlink channel condition; a scheduler configured to assign resources to the downlink data channel based on the channel condition information and the acknowledgement information; and a transmission unit configured to transmit the downlink data channel, wherein the uplink control channel includes one or more unit blocks including a sequence resulting from multiplication of a uniform factor with all chips of an orthogonal code sequence for a cyclic shift amount individually indicated from the base station apparatus to the user apparatus, different cyclic shift mounts being assigned to different user apparatuses, and wherein contents of the acknowledgement information and/or individual bits for representing the channel condition information are represented in a set of factors multiplied in each of the one or more unit blocks.