Efficient signaling of non-preferred transmission resources
Various example embodiments relate to signaling of non-preferred transmission resources. An apparatus may determine a set of non-preferred transmission resources for a second apparatus. The apparatus may further determine a set of inapplicable transmission resources for the second apparatus. The apparatus may determine a reduced set of non-preferred transmission resources based on excluding at least one of the set of inapplicable transmission resources from the set of non-preferred transmission resources. The apparatus may transmit an indication of the reduced set of non-preferred transmission resources to the second apparatus. Apparatuses, methods, and computer programs are disclosed.
1 . An apparatus, comprising:
at least one processor; and at least one memory storing instructions that when executed by the at least one processor, cause the apparatus to:
determine non-preferred transmission resources for a second apparatus;
determine inapplicable transmission resources for the second apparatus, wherein the set of inapplicable transmission resources comprises transmission resources which the second apparatus would not use whether or not indicated as non-preferred transmission resources to the second apparatus;
determine a reduced set of non-preferred transmission resources based on excluding of inapplicable transmission resources from the non-preferred transmission resources; and
transmit an indication of the reduced set of non-preferred transmission resources to the second apparatus for data transmission.
2 . The apparatus according to claim 1 , wherein the at least one memory is storing instructions that when executed with the at least one processor, cause the apparatus to determine the reduced set of non-preferred transmission resources based on excluding an intersection of the set of non-preferred transmission resources and the inapplicable transmission resources from the non-preferred transmission resources.
3 . The apparatus according to claim 1 , wherein the inapplicable transmission resources comprises at least one first transmission resource overlapping with at least one scheduled transmission by the second apparatus or at least one scheduled transmission to the second apparatus.
4 . The apparatus according to claim 1 , wherein the at least one memory is storing instructions that when executed with the at least one processor, cause the apparatus to:
determine information of the second apparatus; and
assign the at least one first transmission resource to the inapplicable transmission resources, in response to determining that transmission at the at least one first transmission resource by the second apparatus is hindered due to at least one capability of the second apparatus indicated in the information.
5 . The apparatus according to claim 1 , wherein the information of the second apparatus is preconfigured at the apparatus, or wherein the at least one memory is storing instructions that when executed by the at least one processor, cause the apparatus to:
receive the capability of the second apparatus from the second apparatus or from the third apparatus.
6 . The apparatus according to claim 3 , wherein the at least one memory is storing instructions that when executed with the at least one processor, cause the apparatus to:
receive an indication of at least one identifier configured to be used by the second apparatus; and
determine the at least one first transmission resource based on sidelink control information indicative of a resource allocation of the at least one scheduled transmission, wherein the at least one scheduled transmission is associated with the at least one identifier configured to be used by the second apparatus.
7 . The apparatus according to claim 6 , wherein the at least one scheduled transmission comprises a hybrid automatic repeat request feedback transmission.
8 . The apparatus according to claim 7 , wherein the at least one memory is storing instructions that when executed with the at least one processor, cause the apparatus to:
assign the resource allocation of the at least one scheduled transmission, wherein the at least one scheduled transmission is indicated by the sidelink control information, to the set of inapplicable transmission resources, in response to detecting a hybrid automatic repeat request feedback message at a physical sidelink feedback channel resource associated to the sidelink control information indicative of the resource allocation of the at least one scheduled transmission.
9 . The apparatus according to claim 1 , wherein the at least one memory is storing instructions that when executed by the at least one processor, cause the apparatus to:
obtain capability information of at least one intended receiver of a sidelink data transmission by the second apparatus; and
assign at least one second transmission resource to the inapplicable transmission resources, in response to determining that reception from the at least one second transmission resource by the at least one intended receiver is hindered due to at least one capability indicated in the capability information of the at least one intended receiver.
10 . The apparatus according to claim 9 , wherein the intended receiver comprises the apparatus.
11 . The apparatus according to claim 10 , wherein the at least one second transmission resource comprises at least one sidelink transmission resource allocated for sidelink communication between the apparatus and the second apparatus.
12 . The apparatus according to claim 1 , wherein the at least one memory is storing instructions that when executed with the at least one processor, cause the apparatus to:
receive a transmission from the second apparatus from at least one third transmission resource; and
assign transmission resources associated with the at least one third transmission resource in configuration data of a resource pool from which the transmission is received to the set of inapplicable transmission resources.
13 . A method, comprising:
determining a non-preferred transmission resources for a second apparatus;
determining a inapplicable transmission resources for the second apparatus, wherein the inapplicable transmission resources comprises transmission resources which the second apparatus would not use whether or not indicated as non-preferred transmission resources to the second apparatus;
determining a reduced set of non-preferred transmission resources based on excluding at least one of the inapplicable transmission resources from the set of non-preferred transmission resources; and
transmitting an indication of the reduced set of non-preferred transmission resources to the second apparatus.
14 . The method of claim 13 further comprising determining the reduced set of non-preferred transmission resources based on excluding an intersection of the non-preferred transmission resources and the inapplicable transmission resources from the set of non-preferred transmission resources.
15 . The method of claim 13 wherein the inapplicable transmission resources comprises at least one first transmission resource overlapping with at least one scheduled transmission by the second apparatus or at least one scheduled transmission to the second apparatus.
16 . The method of claim 13 further comprising:
determining information of the second apparatus; and
assigning the at least one first transmission resource to the inapplicable
transmission resources, in response to determining that transmission at the at least one first transmission resource by the second apparatus is hindered due to at least one capability of the second apparatus indicated in the information.
17 . The method of claim 13 further comprising:
obtaining information of at least one intended receiver of a sidelink data transmission by the second apparatus; and
assigning at least one second transmission resource to the inapplicable transmission resources, in response to determining that reception from the at least one second transmission resource by the at least one intended receiver is hindered due to at least one capability indicated in the information of the at least one intended receiver.
18 . A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising:
determining a non-preferred transmission resources for a second apparatus;
determining a set of inapplicable transmission resources for the second apparatus, wherein the inapplicable transmission resources comprises transmission resources which the second apparatus would not use whether or not indicated as non-preferred transmission resources to the second apparatus;
determining a reduced set of non-preferred transmission resources based on excluding at least one of the inapplicable transmission resources from the set of non-preferred transmission resources inapplicable transmission resources; and
transmitting an indication of the reduced set of non-preferred transmission resources to the second apparatus.
19 . The apparatus according to claim 9 , wherein the information of the at least one intended receiver comprises an indication of a discontinuous reception configuration of the at least one intended receiver.
20 . The apparatus of claim 1 , wherein the inapplicable resources is determined based on:
determining information of the second apparatus comprising at least one of:
an indication of whether the second apparatus supports multiple simultaneous transmissions at the sidelink interface, or an indication of whether the second apparatus supports for multiple simultaneous transmissions at the radio access network air interface, and
determining that transmission at the at least one first transmission resource by the second apparatus is hindered due to at least one capability of the second apparatus indicated in the information.
21 . The apparatus according to claim 1 , wherein the at least one memory is storing instructions that when executed by the at least one processor cause the apparatus to:
in response to determining that a priority associated with a transmission resource of the inapplicable transmission resources is higher or equal to a threshold, assigning a non- preferred transmission resource,
wherein the comprises a priority threshold for the priority of sidelink data transmission to be coordinated, and
wherein the threshold may be preconfigured at a user equipment or a network.