US 2016/0081121 A1 · RANDOM ACCESS METHOD AND APPARATUS BASED ON ANALOG NETWORK CODING FOR TWO-WAY RELAY CHANNEL

Abstract

The present invention generally relates to a random access method and apparatus based on analog network coding for a satellite network and, more particularly, to technology that combines analog network coding with random access, thus guaranteeing high channel usage efficiency upon utilizing the technology for a satellite positioning/communications convergence system. For this, a random access apparatus based on analog network coding for a satellite network according to an embodiment of the present invention includes a received signal determination unit, a data packet transmission unit, a reserved slot decision unit, a response message reception unit, and a data packet decoding unit.

Claims18

Dependent claims

A random access method based on analog network coding, comprising:

receiving, by a first terminal station, a communication channel for one frame period of a communication network and determining a status of occupation of each slot;
selecting, by the first terminal station, an empty slot as a first slot, and transmitting a first data packet for analog network coding in the selected first slot over the communication network;
receiving, by the first terminal station, data in the first slot in which the first data packet is transmitted, and determining whether a collision has occurred between the transmitted first data packet and any additional data packet in the first slot;
and
deciding on, by the first terminal station, the first slot as a reserved slot if a collision has not occurred in the first slot.

2 more elements

A random access apparatus based on analog network coding, comprising a processor configured to:

receive a communication channel for one frame period of a communication network and determining a status of occupation of each slot for a first terminal station;
select an empty slot as a first slot, and transmitting a first data packet for analog network coding in the selected first slot over the communication network for the first terminal station;
and
decide on the first slot as a reserved slot for the first terminal station, if a collision has not occurred in the first slot,
wherein the processor allows the first terminal station to receive data in the first slot, in which the first data packet is transmitted, and determines whether a collision has occurred between the transmitted first data packet and any additional data packet in the first slot.

2 more elements

Dependencies are inferred from the claim text.

Random access method and apparatus based on analog network coding for two-way relay channel

Life of this patent

Random access method and apparatus based on analog network coding for two-way relay channel

Life of this patent

Abstract

Claims18