COMMUNICATION CONTROL METHOD, MOBILE COMMUNICATION SYSTEM AND MOBILE TERMINAL APPARATUS
First Claim
1. A communication control method comprising the steps of:
- in a base station apparatus;
performing channel coding of information bits;
performing a rate matching process of the coded bits after the channel coding; and
transmitting transmission data to match a coded bit length after rate matching, to a mobile terminal apparatus; and
in the mobile terminal apparatus;
receiving the transmission data;
performing channel decoding of the received data; and
discarding part of the received data in accordance with a size of a soft buffer memory of the mobile terminal apparatus and storing in the soft buffer memory.
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Abstract
The present invention is designated to reduce the deterioration of transmission characteristics upon data transmission, even when soft buffer memory for retransmission control is not sufficiently secured in a mobile terminal apparatus. The present invention provides the steps of, in a base station apparatus (eNB), performing channel coding of information bits (ST 802), performing a rate matching process for the coded bits after interleaving (ST 804), and transmitting transmission data to match the coded bit length after rate matching, to a mobile terminal apparatus (UE)
(ST 806), and, in the mobile terminal apparatus (UE), receiving the transmission data (ST 807), performing channel decoding of the received data (ST 810), and discarding part of the received data in accordance with the size of the soft buffer memory in the mobile terminal apparatus (UE) and storing this in the soft buffer memory (ST 812 and ST 813).
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Citations
18 Claims
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1. A communication control method comprising the steps of:
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in a base station apparatus; performing channel coding of information bits; performing a rate matching process of the coded bits after the channel coding; and transmitting transmission data to match a coded bit length after rate matching, to a mobile terminal apparatus; and in the mobile terminal apparatus; receiving the transmission data; performing channel decoding of the received data; and discarding part of the received data in accordance with a size of a soft buffer memory of the mobile terminal apparatus and storing in the soft buffer memory. - View Dependent Claims (2, 3, 4, 5, 16, 17, 18)
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6. A mobile communication system comprising a base station apparatus and a mobile terminal apparatus,
the base station apparatus comprising: -
a channel coding section that performs channel coding of information bits; a rate matching section that performs a rate matching process of the coded bits after channel coding; and a transmission section that transmits transmission data to match a coded bit length after rate matching, to the mobile terminal apparatus; and the mobile terminal apparatus comprising; a receiving section that receives the transmission data; a channel decoding section that performs channel decoding of the received data; and a discarding process section that discards part of the received data in accordance with a size of a soft buffer memory of the mobile terminal apparatus. - View Dependent Claims (7, 8, 9, 15)
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10. A mobile terminal apparatus comprising:
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a receiving section that receives transmission data from a base station apparatus; a channel decoding section that performs channel decoding of received data; and a discarding process section that discards part or all of the received data in accordance with a size of a soft buffer memory of the mobile terminal apparatus. - View Dependent Claims (11, 12, 13, 14)
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Specification