Method for separating physical layer functions in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsJicheol Moon, Ojin Kwon, Namryul Jeon
Life of this patent
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Abstract
The present disclosure relates to a communication method and a system thereof that fuses a 5G communication system, for supporting data transmission rates higher than 4G systems, with IoT technology. The present disclosure can be applied to intelligent services (e.g. smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, or security and safety related services), on the basis of 5G communication technology and IoT related technology. The present disclosure relates to a method and a device for separating physical layer functions of a base station.
Claims16
A method performed by a first entity performing high physical layer functions of a base station in a wireless communication system, the method comprising:
- establishing a fronthaul interface to control a second entity performing low physical layer functions of the base station, the low physical layer functions including a precoding and a digital beamforming for a downlink transmission;
- performing a modulation, a layer mapping and a resource element (RE) mapping for the downlink transmission, wherein the fronthaul interface is provided between a function of the RE mapping in the first entity and a function of the precoding in the second entity for the downlink transmission;
- and
- transmitting, to the second entity via the fronthaul interface, a control plane message or a user plane message,
- wherein the control plane message and the user plane message are identified based on a subtype field of radio over ethernet (ROE).
A method performed by a second entity performing low physical layer functions of a base station in a wireless communication system, the method comprising:
- establishing a fronthaul interface with a first entity performing high physical layer functions of the base station;
- receiving, from the first entity via the fronthaul interface, a control plane message or a user plane message;
- and
- performing the low physical layer functions including a precoding and a digital beamforming for a downlink transmission from the first entity,
- wherein the fronthaul interface is provided between a function of a resource element (RE) mapping in the first entity and a function of the precoding in the second entity for the downlink transmission, and
- wherein the control plane message and the user plane message are identified based on a subtype field of radio over ethernet (ROE).
A first entity performing high physical layer functions of a base station in a wireless communication system, the first entity comprising:
- a transceiver configured to transmit and receive a signal;
- and
- at least one processor coupled with the transceiver and configured to:
- establish a fronthaul interface to control a second entity performing low physical layer functions of the base station, the low physical layer functions including a precoding and a digital beamforming for a downlink transmission,
- performing a modulation, a layer mapping and a resource element (RE) mapping for the downlink transmission, wherein the fronthaul interface is provided between a function of the RE mapping in the first entity and a function of the precoding in the second entity for the downlink transmission, and
- transmit, to the second entity via the fronthaul interface, a control plane message or a user plane message,
- wherein the control plane message and the user plane message are identified based on a subtype field of radio over ethernet (ROE).
A second entity performing low physical layer functions of a base station in a wireless communication system, the second entity comprising:
- a transceiver configured to transmit and receive a signal;
- and
- at least one processor coupled with the transceiver and configured to:
- establish a fronthaul interface with a first entity performing high physical layer functions of the base station,
- receive, from the first entity via the fronthaul interface, a control plane message or a user plane message, and
- performing the low physical layer functions including a precoding, and a digital beamforming for a downlink transmission from the first entity,
- wherein the fronthaul interface is provided between a function of a resource element (RE) mapping in the first entity and a function of the precoding in the second entity for the downlink transmission, and
- wherein the control plane message and the user plane message are identified based on a subtype field of radio over ethernet (ROE).
Dependencies are inferred from the claim text.