US 2025/0358040 A1 · TRANSPORT BLOCK SIZE DETERMINATION FOR SIDELINK COMMUNICATIONS

Abstract

Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as user equipment (UE) may support direct communications with other communications devices (e.g., direct communications between multiple UEs). Direct communications may include, but are not limited to, device-to-device (D2D) communications, vehicle-based communications, which may also be referred to as vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, and the like. In an example of V2X communications, V2V communications, and the like, a UE may identify sidelink information for sidelink communications, encode the sidelink information for the sidelink communications based on a transport block size (TBS), determine the TBS for the sidelink information based on an overhead size of a second physical sidelink channel for communicating the sidelink information, and transmit the sidelink information on a physical sidelink channel.

Claims20

Dependent claims

A method for wireless communication by a first user equipment (UE), comprising:

receiving signaling comprising an indication of a demodulation reference signal pattern of a physical sidelink shared channel;
encoding sidelink information for sidelink communication based at least in part on a transport block size, wherein the transport block size is based on a first quantity of resource elements for first-stage sidelink control information, a second quantity of resource elements for second-stage sidelink control information, and the demodulation reference signal pattern, wherein the second quantity of resource elements for the second-stage sidelink control information is based at least in part on a target code rate for a modulation coding scheme of the second-stage sidelink control information;
and
transmitting, to a second UE, the encoded sidelink information via the physical sidelink shared channel.

1 more element

A first user equipment (UE) for wireless communication, comprising:

one or more processors;
and
memory coupled to the one or more processors, the one or more processors configured individually or collectively to cause the first UE to:
receive signaling comprising an indication of a demodulation reference signal pattern of a physical sidelink shared channel;
encode sidelink information for sidelink communication based at least in part on a transport block size, wherein the transport block size is based on a first quantity of resource elements for first-stage sidelink control information, a second quantity of resource elements for second-stage sidelink control information, and the demodulation reference signal pattern, wherein the second quantity of resource elements for the second-stage sidelink control information is based at least in part on a target code rate for a modulation coding scheme of the second-stage sidelink control information;
and
transmit, to a second UE, the encoded sidelink information via the physical sidelink shared channel.

4 more elements

A non-transitory computer-readable medium storing code for wireless communication by a first user equipment (UE), the code comprising instructions executable by one or more processors to:

receive signaling comprising an indication of a demodulation reference signal pattern of a physical sidelink shared channel;
encode sidelink information for sidelink communication based at least in part on a transport block size, wherein the transport block size is based on a first quantity of resource elements for first-stage sidelink control information, a second quantity of resource elements for second-stage sidelink control information, and the demodulation reference signal pattern, wherein the second quantity of resource elements for the second-stage sidelink control information is based at least in part on a target code rate for a modulation coding scheme of the second-stage sidelink control information;
and
transmit, to a second UE, the encoded sidelink information via the physical sidelink shared channel.

1 more element

Dependencies are inferred from the claim text.

Transport block size determination for sidelink communications

Life of this patent

Transport block size determination for sidelink communications

Life of this patent

Abstract

Claims20