Method, device and computer readable medium for communications
Embodiments of the present disclosure relate to methods, devices and computer readable media for communications. A method comprises determining, at a first terminal device, at least one sub-channel based on a size of data to be transmitted. Each of the at least one sub-channel comprises at least one frequency interlace. The method also comprises transmitting, to a second terminal device, the data and control information associated with the data on the at least one sub-channel via a sidelink between the first terminal device and the second terminal device.
1 . A method performed by a first user equipment (UE) communicating with a second UE via a sidelink channel, the method comprising:
receiving, from a network, a radio resource control (RRC) message comprising first information indicating a number of at least one frequency interlace per a sub-channel within a first frequency resource unit; and
transmitting a first data and control information associated with the first data on the at least one sub-channel within the first frequency resource unit, each of the at least one sub-channel comprising the number of the at least one frequency interlace indicated in the first information,
wherein a first index of each of the at least one sub-channel is periodically indexed across multiple resource block (RB) sets within the resource pool, and
wherein each of the at least one sub-channel with the same first index is mapped to the number of the at least one frequency interlace, indicated in the first information, with the same first index in different RB sets.
2 . The method according to claim 1 , wherein
the first frequency resource unit comprises a resource pool.
3 . The method according to claim 2 , wherein
the resource pool comprises at least one resource block (RB) set,
each of the at least one RB set comprises the at least one sub-channel,
each of the at least one sub-channel comprises the at least one frequency interlace, and
each of the at least one frequency interlace comprises at least one physical resource block (PRB).
4 . The method according to claim 1 , wherein
the first frequency resource unit comprises a resource block (RB) set.
5 . The method according to claim 1 , wherein
the first data is transmitted in physical sidelink shared channel (PSSCH), and
the control information associated with the first data is transmitted in physical sidelink control channel (PSCCH).
6 . The method according to claim 1 , wherein
each of the at least one sub-channel comprises at least one consecutive frequency interlace.
7 . The method according to claim 1 , wherein
the transmitting the control information associated with the first data comprises:
transmitting the control information in at least one lowest physical resource block (PRB) of the sub-channel with a lowest index of a lowest resource block (RB) set of the associated first data.
8 . The method according to claim 1 , wherein
the first index of each of the at least one sub-channel is indexed per RB set.
9 . The method according to claim 1 , wherein
the control information comprises second information and third information,
the second information indicating a first number of at least one resource block (RB) set within the resource pool,
the third information indicating a second number of the at least one sub-channel in each of the first number of the at least one RB set within the resource pool.
10 . A first user equipment (UE) communicating with a second UE via a sidelink channel, the first UE comprising:
one or more memories storing instructions; and
one or more processors configured to process the instructions to control the first UE to:
receive, from a network, a radio resource control (RRC) message comprising first information indicating a number of at least one frequency interlace per a sub-channel within a first frequency resource unit; and
transmit a first data and control information associated with the first data on the at least one sub-channel within the first frequency resource unit, each of the at least one sub-channel comprising the number of the at least one frequency interlace indicated in the first information,
wherein a first index of each of the at least one sub-channel is periodically indexed across multiple resource block (RB) sets within the resource pool, and
wherein each of the at least one sub-channel with the same first index is mapped to the number of the at least one frequency interlace, indicated in the first information, with the same first index in different RB sets.
11 . The first UE according to claim 10 , wherein
the first frequency resource unit comprises a resource pool.
12 . The first UE according to claim 11 , wherein
the resource pool comprises at least one resource block (RB) set,
each of the at least one RB set comprises the at least one sub-channel,
each of the at least one sub-channel comprises the at least one frequency interlace, and
each of the at least one frequency interlace comprises at least one physical resource block (PRB).
13 . The first UE according to claim 10 , wherein
the first frequency resource unit comprises a resource block (RB) set.
14 . The first UE according to claim 10 , wherein
the first data is transmitted in physical sidelink shared channel (PSSCH), and
the control information associated with the first data is transmitted in physical sidelink control channel (PSCCH).
15 . The first UE according to claim 10 , wherein
each of the at least one sub-channel comprises at least one consecutive frequency interlace.
16 . The first UE according to claim 10 , wherein
the one or more processors are configured to process the instructions to control the first UE to:
transmit the control information in at least one lowest physical resource block (PRB) of the sub-channel with a lowest index of a lowest resource block (RB) set of the associated first data.
17 . The first UE according to claim 10 , wherein
the first index of each of the at least one sub-channel is indexed per RB set.
18 . The first UE according to claim 10 , wherein
the control information comprises second information and third information,
the second information indicating a first number of at least one resource block (RB) set within the resource pool,
the third information indicating a second number of the at least one sub-channel in each of the first number of the at least one RB set within the resource pool.