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US 11,696,204 B2Granted
Operating method of node in wireless communication system, and device using method
AssigneeLG Electronics Inc.
InventorsYunjung Yi, Soonki Jo, Duckhyun Bae, Daesung Hwang
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Abstract
An operating method of a node in a wireless communication system, and a device using the method are provided. The method transmits a link instability signal notifying a child node of the instability of a link if the link with a parent node is unstable, monitors, during a connection recovery time, whether a link recovery signal is received from the parent node, and transmits, to the child node, a handover trigger signal if the link recovery signal has not been received within the connection recovery time.
Claims8
An operation method of a node in a wireless communication system, the operation method comprising:
- allocating resources to a child node using one of a plurality of resource allocation types;
- wherein the plurality of resource allocation types comprise i) a first resource allocation type and ii) a second resource allocation type,
- wherein, in the first resource allocation type, a bitmap indicates Resource Block Groups (RBGs) that are allocated to the child node,
- wherein, in the second resource allocation type, a resource allocation field informs of a starting resource block and a length in terms of contiguously allocated resource blocks that are allocated to the child node;
- receiving a radio resource control (RRC) signal configuring a due time;
- transmitting, to the child node, a link unstableness signal informing unstableness of a link, based on the link with a parent node being unstable;
- monitoring whether a link restoration signal is received from the parent node within a connection recovery time;
- and
- transmitting a handover trigger signal to the child node based on the link restoration signal being not received within the connection recovery time,
- wherein the link is determined to be unstable based on a situation, in which reference signal received power (RSRP) or reference signal received quality (RSRQ) measured in the link is equal to or smaller than a threshold, being maintained for the due time, and
- wherein information for a reason with a cause value to support the child node in taking subsequent actions is transmitted together with the link unstableness signal.
8 more elements
A node comprising:
- a transceiver configured to transmit or receive a wireless signal;
- and
- a processor operatively coupled with the transceiver,
- wherein the processor is configured to:
- allocate resources to a child node using one of a plurality of resource allocation types;
- wherein the plurality of resource allocation types comprise i) a first resource allocation type and ii) a second resource allocation type,
- wherein, in the first resource allocation type, a bitmap indicates Resource Block Groups (RBGs) that are allocated to the child node,
- wherein, in the second resource allocation type, a resource allocation field informs of a starting resource block and a length in terms of contiguously allocated resource blocks that are allocated to the child node,
- receive a radio resource control (RRC) signal configuring a due time,
- transmit, to the child node, a link unstableness signal informing unstableness of a link based on the link with a parent node being unstable,
- monitor whether a link restoration signal is received from the parent node within a connection recovery time, and
- transmit a handover trigger signal to the child node based on the link restoration signal being not received within the connection recovery time,
- wherein the link is determined to be unstable based on a situation, in which reference signal received power (RSRP) or reference signal received quality (RSRQ) measured in the link is equal to or smaller than a threshold, being maintained for the due time, and
- wherein information for a reason with a cause value to support the child node in taking subsequent actions is transmitted together with the link unstableness signal.
11 more elements
A processor for a wireless communication device in a wireless communication system,
- wherein the processor is configured to control the wireless communication device to
- allocate resources to a child node using one of a plurality of resource allocation types;
- wherein the plurality of resource allocation types comprise i) a first resource allocation type and ii) a second resource allocation type,
- wherein, in the first resource allocation type, a bitmap indicates Resource Block Groups (RBGs) that are allocated to the child node,
- wherein, in the second resource allocation type, a resource allocation field informs of a starting resource block and a length in terms of contiguously allocated resource blocks that are allocated to the child node,
- receive a radio resource control (RRC) signal configuring a due time,
- transmit, to the child node, a link unstableness signal informing unstableness of a link based on the link with a parent node being unstable,
- monitor whether a link restoration signal is received from the parent node within a connection recovery time, and
- transmit a handover trigger signal to the child node based on the link restoration signal being not received within the connection recovery time,
- wherein the link is determined to be unstable based on a situation, in which reference signal received power (RSRP) or reference signal received quality (RSRQ) measured in the link is equal to or smaller than a threshold, being maintained for the due time, and
- wherein information for a reason with a cause value to support the child node in taking subsequent actions is transmitted together with the link unstableness signal.
8 more elements
Dependencies are inferred from the claim text.