Method and apparatus for configuring a relay node
AssigneeSamsung Electronics Co., Ltd.
InventorsWeiwei Wang, Hong Wang, Lixiang Xu
Life of this patent
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Abstract
The 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 disclosure provides a method and apparatus for configuring a relay node. A first node transmits to a second node a message that carries information on a radio bearer for a user accessing the second node. Configuration of the radio bearer for data transmission in a multi-hop network is realized through the above method and apparatus.
Claims20
A method performed by a first integrated access and backhaul (IAB) node that is a relay node in a wireless communication system, the method comprising:
- receiving, from an IAB donor node, a first message including configuration information of a first channel, wherein the configuration information includes first information on an identity of the first channel, and second information configuring a radio link control (RLC) entity and a logical channel corresponding to the first channel;
- receiving, from the IAB donor node, a second message including third information on an identity of a second channel for a second IAB node, fourth information on an identity of the second IAB node, and mapping information for the second channel, wherein the mapping information includes fifth information on the identity of the first channel, and sixth information on an identity of a node transmitting downlink data to the first IAB node;
- and
- transmitting the downlink data to the second IAB node via the second channel, based on the first message and the second message.
A method performed by an integrated access and backhaul (IAB) donor node in a wireless communication system, the method comprising:
- transmitting, to a first IAB node that is a relay node, a first message including configuration information of a first channel, wherein the configuration information includes first information on an identity of the first channel, and second information configuring a radio link control (RLC) entity and a logical channel corresponding to the first channel;
- and
- transmitting, to the first IAB node, a second message including third information on an identity of a second channel for a second IAB node, fourth information on an identity of the second LAB node, and mapping information for the second channel, wherein the mapping information includes fifth information on the identity of the first channel, and sixth information on an identity of a node transmitting downlink data to the first IAB node,
- wherein the downlink data is forwarded from the first IAB node to the second IAB node via the second channel, based on the first message and the second message.
A first integrated access and backhaul (IAB) node that is a relay node in a wireless communication system, the first IAB node comprising:
- a transceiver;
- and
- a controller coupled with the transceiver and configured to:
- receive, from an IAB donor node, a first message including configuration information of a first channel, wherein the configuration information includes first information on an identity of the first channel, and second information configuring a radio link control (RLC) entity and a logical channel corresponding to the first channel,
- receive, from the IAB donor node, a second message including third information on an identity of a second channel for a second IAB node, fourth information on an identity of the second IAB node, and mapping information for the second channel, wherein the mapping information includes fifth information on the identity of the first channel, and sixth information on an identity of a node transmitting downlink data to the first IAB node, and
- transmit the downlink data to the second IAB node via the second channel, based on the first message and the second message.
An integrated access and backhaul (IAB) donor node in a wireless communication system, the IAB donor node comprising:
- a transceiver;
- and
- a controller coupled with the transceiver and configured to:
- transmit, to a first IAB node that is a relay node, a first message including configuration information of a first channel, wherein the configuration information includes first information on an identity of the first channel, and second information configuring a radio link control (RLC) entity and a logical channel corresponding to the first channel, and
- transmit, to the first IAB node, a second message including third information on an identity of a second channel for a second IAB node, fourth information on an identity of the second IAB node, and mapping information for the second channel, wherein the mapping information includes fifth information on the identity of the first channel, and sixth information on an identity of a node transmitting downlink data to the first IAB node,
- wherein the downlink data is forwarded from the first IAB node to the second IAB node via the second channel, based on the first message and the second message.
Dependencies are inferred from the claim text.