Time domain orthogonal cover code for sounding reference signal transmissions
AssigneeQUALCOMM Incorporated
InventorsMostafa Khoshnevisan, Yitao Chen, Muhammad Sayed Khairy Abdelghaffar
Life of this patent
Estimating the term…
Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of a sounding reference signal (SRS) resource. The UE may receive one or more indications indicating that an SRS associated with the SRS resource should be transmitted using a time domain orthogonal cover code (TD-OCC) and that the UE should perform TD-OCC hopping when transmitting the SRS associated with the SRS resource. The UE may transmit the SRS using the SRS resource based at least in part on the configuration of the SRS resource and by performing the TD-OCC hopping. Numerous other aspects are described.
Claims30
An apparatus for wireless communication at a user equipment (UE), comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to:
- receive a configuration of a sounding reference signal (SRS) resource;
- receive one or more indications indicating that an SRS associated with the SRS resource should be transmitted using a time domain orthogonal cover code (TD-OCC) and that the UE should perform TD-OCC hopping for a transmission of the SRS associated with the SRS resource;
- initialize a pseudo-random sequence at a beginning of each radio frame based at least in part on an SRS sequence identity configured for the SRS resource;
- select, based at least in part on a hopping formula that incorporates the pseudo-random sequence, a TD-OCC sequence to apply to the transmission of the SRS,
- wherein the selected TD-OCC sequence corresponds to a pseudo-random number generated from the hopping formula;
- and
- transmit the SRS using the SRS resource based at least in part on the configuration of the SRS resource, the selected TD-OCC sequence, and the TD-OCC hopping.
An apparatus for wireless communication at a network node, comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to:
- transmit, to a user equipment (UE), a configuration of a sounding reference signal (SRS) resource;
- transmit, to the UE, one or more indications indicating that an SRS associated with the SRS resource should be transmitted using a time domain orthogonal cover code (TD-OCC) and that the UE should perform TD-OCC hopping when transmitting the SRS associated with the SRS resource;
- initialize a hopping formula, that incorporates a pseudo-random sequence, associated with the TD-OCC hopping,
- wherein the pseudo-random sequence is initialized at a beginning of each radio frame based at least in part on an SRS sequence identity configured for the SRS resource;
- and
- receive, from the UE, the SRS using the SRS resource based at least in part on the configuration of the SRS resource and a TD-OCC sequence selected based at least in part on the hopping formula,
- wherein the TD-OCC sequence corresponds to a pseudo-random number generated from the hopping formula.
A method of wireless communication performed by a user equipment (UE), comprising:
- receiving a configuration of a sounding reference signal (SRS) resource;
- receiving one or more indications indicating that an SRS associated with the SRS resource should be transmitted using a time domain orthogonal cover code (TD-OCC) and that the UE should perform TD-OCC hopping when transmitting the SRS associated with the SRS resource;
- initializing pseudo-random sequence at a beginning of each radio frame based at least in part on an SRS sequence identity configured for the SRS resource;
- selecting, based at least in part on a hopping formula that incorporates the pseudo-random sequence, a TD-OCC sequence to apply to a transmission of the SRS,
- wherein the selected TD-OCC sequence corresponds to a pseudo-random number generated from the hopping formula;
- and
- transmitting the SRS using the SRS resource based at least in part on the configuration of the SRS resource, the selected TD-OCC sequence, and the TD-OCC hopping.
A method of wireless communication performed by a network node, comprising:
- transmitting, to a user equipment (UE), a configuration of a sounding reference signal (SRS) resource;
- transmitting, to the UE, one or more indications indicating that an SRS associated with the SRS resource should be transmitted using a time domain orthogonal cover code (TD-OCC) and that the UE should perform TD-OCC hopping when transmitting the SRS associated with the SRS resource;
- initializing a hopping formula, that incorporates a pseudo-random sequence, associated with the TD-OCC hopping,
- wherein the pseudo-random sequence is initialized at a beginning of each radio frame based at least in part on an SRS sequence identity configured for the SRS resource;
- and
- receiving, from the UE, the SRS using the SRS resource based at least in part on the configuration of the SRS resource and a TD-OCC sequence selected based at least in part on the hopping formula,
- wherein the TD-OCC sequence corresponds to a pseudo-random number generated from the hopping formula.
Dependencies are inferred from the claim text.