US 8,265,025 B2 · Radio transmission device and radio transmission method

Abstract

Disclosed is a radio transmission device and a radio transmission method which reduces the RACH conflict ratio and improve the RACH detection characteristic. When the device and the method are used: as the number of signature numbers allocated for UE by the network side increases, the condition for allocating a signature by UE itself is mitigated and an expectation value which is a statistic average value of the RA quantity using the signature allocated by UE for itself is decreased; and as the number of signature numbers allocated for UE by the network side decreases, the condition for allocating a signature by UE itself is limited and an expectation value of the RA quantity using the signature allocated by UE for itself is increased.

Claims4

Dependent claims

A radio transmitting apparatus comprising:

an random access burst transmission control section that restricts conditions for allocating a signature to the radio transmitting apparatus more when the number of signatures allocated by a network side, which is a communicating party, to other radio communication terminal apparatuses increases, or alleviates the conditions for allocating a signature to the radio transmitting apparatus more when the number of signatures allocated by the network side to the other radio communication terminal apparatuses decreases;
an random access burst generating section that generates a random access burst including a signature when the condition is satisfied;
and
a transmitting section that transmits the random access burst generated.

1 more element

Dependencies are inferred from the claim text.

Radio transmission device and radio transmission method

Life of this patent

Radio transmission device and radio transmission method

Life of this patent

Abstract

Claims4