US 12,004,143 B2 · Resource reservation techniques for wireless communications

Abstract

Methods, systems, and devices for wireless communications are described in which a transmitting user equipment (UE) may determine a data packet to transmit to another UE and determine a set of candidate resources for transmission of the data packet based on a set of time-frequency resources that are allocated for UE-to-UE communications. A resource reservation signal (RRS) may be transmitted to indicate to other UEs that the set of candidate resources have been reserved by a UE. The RRS may be transmitted such that the RRS may be differentiated from other regular transmissions based at least in part on information provided by a control channel associated with the RRS or a payload of a transmission that includes the RRS. The RRS may indicate one or more of a size of an allocation of the resources and multiple locations of the resources within a time-frequency resource pool.

Claims19

Dependent claims

A method for wireless communication at a first user equipment (UE) in a sidelink communication system, comprising:

determining a time-frequency resource pool that provides wireless resources available for sidelink communications;
receiving a first transmission from a second UE in the sidelink communication system via a subset of resources of the time-frequency resource pool, the first transmission comprising a control channel;
decoding a first portion of the control channel, wherein the first portion comprises an indicator of whether a subsequent portion of the first transmission comprises a resource reservation signal (RRS) that indicates resources of the time-frequency resource pool selected for an upcoming transmission of the second UE or a data transmission and not the RRS;
and
updating the time-frequency resource pool in accordance with the RRS or decoding the data transmission based at least in part on the indicator.

2 more elements

A method for wireless communication at a first user equipment (UE) in a sidelink communication system, comprising:

determining a time-frequency resource pool that provides wireless resources available for sidelink communications;
determining that an upcoming transmission to one or more second UEs in the sidelink communication system is to be transmitted;
selecting resources of the time-frequency resource pool for transmitting the upcoming transmission to the one or more second UEs;
formatting a resource reservation signal (RRS) into a first transmission, the RRS indicating a reservation of the resources of the time-frequency resource pool for the upcoming transmission to the one or more second UEs;
formatting the RRS into a first portion of a control channel of the first transmission, wherein the first portion comprises an indicator of whether a subsequent portion of the first transmission comprises a resource reservation signal (RRS) or a data transmission and not the RRS;
and
transmitting the first transmission to the one or more second UEs.

4 more elements

An apparatus for wireless communications at a user equipment (UE) in a sidelink communication system, comprising:

a transceiver;
one or more processors;
and
memory coupled to the one or more processors, the memory comprising instructions executable by the one or more processors to cause the apparatus to:
determine a time-frequency resource pool that provides wireless resources available for sidelink communications;
receive a first transmission from a second UE in the sidelink communication system via a subset of resources of the time-frequency resource pool, the first transmission comprising a control channel;
decode a first portion of the control channel, wherein the first portion comprises an indicator of whether a subsequent portion of the first transmission comprises a resource reservation signal (RRS) that indicates resources of the time-frequency resource pool selected for an upcoming transmission of the second UE or a data transmission and not the RRS;
and
updating the time-frequency resource pool in accordance with the RRS or decoding the data transmission based at least in part on the indicator.

6 more elements

An apparatus for wireless communications at a user equipment (UE) in a sidelink communication system, comprising:

a transceiver;
one or more processors;
and
memory coupled to the one or more processors, the memory comprising instructions executable by the one or more processors to cause the apparatus to:
determine a time-frequency resource pool that provides wireless resources available for sidelink communications;
determine that an upcoming transmission to one or more second UEs in the sidelink communication system is to be transmitted;
select resources of the time-frequency resource pool for transmitting the upcoming transmission to the one or more second UEs;
format a resource reservation signal (RRS) into a first transmission, the RRS indicating a reservation of the resources of the time-frequency resource pool for the upcoming transmission to the one or more second UEs;
format the RRS into a first portion of a control channel of the first transmission, wherein the first portion comprises an indicator of whether a subsequent portion of the first transmission comprises a resource reservation signal (RRS) or a data transmission and not both;
and
transmit the first transmission to the one or more second UEs.

8 more elements

Dependencies are inferred from the claim text.

Resource reservation techniques for wireless communications

Life of this patent

Resource reservation techniques for wireless communications

Life of this patent

Abstract

Claims19