Beam training method and device in communication system
First Claim
1. A method for a network node in a communication system, the method comprising:
- measuring at least two types of factor values indicating at least two types of performances of a channel link between the network node and another network node;
selecting a beamforming training scheme from a plurality of beamforming training schemes based on the at least two types of factor values;
performing beamforming training with the another network node according to the selected beamforming training scheme;
selecting a transmission beam based on a result of performing the beamforming training;
forming a channel link with the another network node using the selected transmission beam;
performing communication with the another network node via the channel link;
measuring at least two types of factor values indicating at least two types of performances of the channel link using the selected transmission beam; and
determining whether to repeatedly perform beamforming training based on the at least two types of factor values indicating the at least two types of performances of the channel link using the selected transmission beam and at least two types of reference factor values.
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Abstract
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to a method and an apparatus in a communication system. A method of a network node in the communication system comprises the steps of: measuring at least one factor value indicating channel link performance of a channel link between the network node and another network node; identifying a beamforming training scheme based on the at least one factor value; and performing beamforming training with the another network node by means of the selected beamforming training method, thereby finding an optimal beam for maintaining services through the most efficient method according to a channel state and minimizing the time consumed for beamforming training.
13 Citations
17 Claims
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1. A method for a network node in a communication system, the method comprising:
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measuring at least two types of factor values indicating at least two types of performances of a channel link between the network node and another network node; selecting a beamforming training scheme from a plurality of beamforming training schemes based on the at least two types of factor values; performing beamforming training with the another network node according to the selected beamforming training scheme; selecting a transmission beam based on a result of performing the beamforming training; forming a channel link with the another network node using the selected transmission beam; performing communication with the another network node via the channel link; measuring at least two types of factor values indicating at least two types of performances of the channel link using the selected transmission beam; and determining whether to repeatedly perform beamforming training based on the at least two types of factor values indicating the at least two types of performances of the channel link using the selected transmission beam and at least two types of reference factor values. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus of a network node in a communication system, the apparatus comprising:
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at least one transceiver; and at least one processor operatively coupled to the at least one transceiver, wherein the at least one processor is configured to; measure at least two types of factor values indicating at least two types of performances of a channel link between the network node and another network node; select a beamforming training scheme from a plurality of beamforming training schemes based on the at least two types of factor values; perform beamforming training with the another network node according to the selected beamforming training scheme; select a transmission beam based on a result of performing the beamforming training; form a channel link with the another network node using the selected transmission beam; perform communication with the another network node via the channel link; measure at least two types of factor values indicating at least two types of performances of the channel link using the selected transmission beam; and determine whether to repeatedly perform beamforming training based on the at least two factor values indicating the at least two types of performances of the channel link using the selected transmission beam and at least two types of reference factor values. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus of a network node in a communication system, the apparatus comprising:
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at least one transceiver; and at least one processor operatively coupled to the at least one transceiver, wherein the at least one processor is configured to; measure at least two types of factor values indicating at least two types of performances of a channel link between the network node and another network node; select a beamforming training scheme from a plurality of beamforming training schemes based on the at least two types of factor values; perform beamforming training with the another network node according to the selected beamforming training scheme; receive, through at least one beam, a beamforming training signal, from the another network node; select a reception beam based on a result of performing the beamforming training; form a channel link with the another network node using the selected reception beam; perform communication with the another network node via the channel link; measure at least two types of factor values indicating at least two types of performances of the channel link using the selected reception beam; and determine whether to repeatedly perform beamforming training based on the at least two types of factor values indicating the at least two types of performances of the channel link using the selected reception beam and at least two types of reference factor values, wherein a beam width and direction of the at least one beam is determined based on the selected beamforming training scheme. - View Dependent Claims (16, 17)
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Specification