Back to results
US 12,598,566 B2Granted
IAB timing delta MAC CE enhancement for case #6 timing support
AssigneeNokia Technologies Oy
InventorsKevin Wanuga, Keeth Saliya Laddu Jayasinghe, Juha Sakari Korhonen, Ilkka Antero Keskitalo, Mark Cudak
Life of this patent
Estimating the term…
Abstract
Methods, apparatuses, and computer programs for timing enhancement for an integrated access and backhaul node are disclosed. A method includes receiving a control element that is used to determine a timing mode and/or associated timing information for an integrated access and backhaul node; determining the timing mode and/or the associated timing information for the integrated access and backhaul node, based on the control element; and applying the timing mode and/or the associated timing information for a subsequent uplink transmission for the integrated access and backhaul node.
Claims21
A method, comprising:
- receiving, with a first integrated access and backhaul node from a second integrated access and backhaul node, a medium access control control element that is used to determine a timing mode and associated timing information for the first integrated access and backhaul node;
- in response to detecting at least one bit pattern of the medium access control control element that indicates the timing mode, determining the associated timing information signaled within the medium access control control element to be a timing difference between uplink reception with a distributed unit of the second integrated access and backhaul node from a mobile termination part of the first integrated access and backhaul node, and downlink transmission from the distributed unit of the second integrated access and backhaul node to the mobile termination part of the first integrated access and backhaul node;
- in response to detecting at least one other bit pattern of the medium access control control element that indicates the timing mode, the at least one other bit pattern of the medium access control control element being different from the at least one bit pattern of the medium access control control element, determining the associated timing information signaled within the medium access control control element to be an offset used to align a timing of a distributed unit of the first integrated access and backhaul node with a downlink transmission timing of the second integrated access and backhaul node;
- applying the timing mode and the associated timing information for an uplink transmission from the first integrated access and backhaul node;
- and
- synchronizing, based on the timing difference, the uplink transmission from the mobile termination part of the first integrated access and backhaul node with downlink transmission from the distributed unit of the first integrated access and backhaul node, wherein the synchronizing is performed with the first integrated access and backhaul node.
3 more elements
A method comprising:
- transmitting, from a first integrated access and backhaul node to a second integrated access and backhaul node, a medium access control control element that is used to determine a timing mode and associated timing information for the second integrated access and backhaul node;
- indicating the timing mode using at least one bit pattern of the medium access control control element, wherein when the at least one bit pattern indicates the timing mode, the associated timing information signaled within the medium access control control element comprises a timing difference between uplink reception with a distributed unit of the first integrated access and backhaul node from a mobile termination part of the second integrated access and backhaul node, and downlink transmission from the distributed unit of the first integrated access and backhaul node to the mobile termination part of the second integrated access and backhaul node;
- indicating the timing mode using at least one other bit pattern of the medium access control control element, the at least one other bit pattern of the medium access control control element being different from the at least one bit pattern of the medium access control control element, wherein when the at least one other bit pattern indicates the timing mode, the associated timing information signaled within the medium access control control element comprises an offset used to align a timing of a distributed unit of the second integrated access and backhaul node with a downlink transmission timing of the first integrated access and backhaul node;
- receiving an uplink transmission from the second integrated access and backhaul node, based on the timing mode and the associated timing information;
- wherein the timing difference is configured to be used with the second integrated access and backhaul node to synchronize the uplink transmission from the mobile termination part of the second integrated access and backhaul node with downlink transmission from the distributed unit of the second integrated access and backhaul node.
2 more elements
An apparatus comprising:
- at least one processor;
- and
- at least one non-transitory memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:
- receive, with a first integrated access and backhaul node from a second integrated access and backhaul node, a medium access control control element that is used to determine a timing mode and associated timing information for the first integrated access and backhaul node;
- in response to detecting at least one bit pattern of the medium access control control element that indicates the timing mode, determine the associated timing information signaled within the medium access control control element to be a timing difference between uplink reception with a distributed unit of the second integrated access and backhaul node from a mobile termination part of the first integrated access and backhaul node, and downlink transmission from the distributed unit of the second integrated access and backhaul node to the mobile termination part of the first integrated access and backhaul node;
- in response to detecting at least one other bit pattern of the medium access control control element that indicates the timing mode, the at least one other bit pattern of the medium access control control element being different from the at least one bit pattern of the medium access control control element, determine the associated timing information signaled within the medium access control control element to be an offset used to align a timing of a distributed unit of the first integrated access and backhaul node with a downlink transmission timing of the second integrated access and backhaul node;
- apply the timing mode and the associated timing information for an uplink transmission from the first integrated access and backhaul node;
- synchronize, based on the timing difference, the uplink transmission from the mobile termination part of the first integrated access and backhaul node with downlink transmission from the distributed unit of the first integrated access and backhaul node, wherein the synchronizing is performed with the first integrated access and backhaul node.
5 more elements
Dependencies are inferred from the claim text.