Method for control signaling for srs interference randomization
AssigneeGoogle Inc.
InventorYushu Zhang
Life of this patent
Estimating the term…
Abstract
Devices, apparatus, and methods, including computer programs encoded on storage media, alter at least one of comb offset, cyclic shift and TD-OCC to randomize SRS interference at unintended receivers. A user equipment (UE, 102) receives (322), from a network entity, an SRS-randomization configuration specifying parameters and/or a hopping pattern enable applying at least one of: a comb offset hopping, a cyclic shift hopping, or a time-domain orthogonal cover code (TD-OCC) hopping. The UE generates (326) an SRS using one or more of the comb offset hopping, the cyclic shift hopping and the TD-OCC hopping based on the parameters and/or the hopping pattern. The UE transmits (328), to the network entity, the SRS.
Claims20
A method of wireless communication at a user equipment (UE), the method comprising:
- receiving, from a network entity, a configuration comprising parameters to apply at least one of:
- a comb offset hopping, or
- a cyclic shift hopping:
- generating a sounding reference signal (SRS) using the at least one of the comb offset hopping or the cyclic shift hopping based on the parameters, a comb offset associated with the comb offset hopping and a cyclic shift associated with the cyclic shift hopping for an SRS port corresponding to a symbol, the comb offset and the cyclic shift each being based on a symbol index, a slot index, and a frame index;
- and
- transmitting, to the network entity, the SRS.
A method of wireless communication at a network entity, the method comprising:
- transmitting, to a user equipment (UE), a configuration comprising parameters to apply at least one of:
- a comb offset hopping, or
- a cyclic shift hopping;
- and
- receiving, from the UE, a sounding reference signal (SRS) generated using the at least one of the comb offset hopping or the cyclic shift hopping based on the parameters, a comb offset associated with the comb offset hopping and a cyclic shift associated with the cyclic shift hopping for an SRS port corresponding to a symbol, the comb offset and the cyclic shift each being based on a symbol index, a slot index, and a frame index.
An apparatus for wireless communication comprising:
- a wireless communication interface;
- and
- a processor coupled to the wireless communication interface configured to:
- receive, from a network entity, a configuration comprising parameters to apply at least one of:
- a comb offset hopping, or
- a cyclic shift hopping:
- generate a sounding reference signal (SRS) using the at least one of the comb offset hopping or the cyclic shift hopping based on the parameters, a comb offset associated with the comb offset hopping and a cyclic shift associated with the cyclic shift hopping for an SRS port corresponding to a symbol, the comb offset and the cyclic shift each being based on a symbol index, a slot index, and a frame index;
- and
- transmit, to the network entity, the SRS.
Dependencies are inferred from the claim text.