RRC configuration for aperiodic SRS on additional SRS symbols

A method of wireless communications by a user equipment (UE) in a network, comprising:

• receiving, from the network, signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein the first configuration includes an indication of whether intra-subframe SRS antenna switching is enabled or disabled for at least one uplink subframe;
• transmitting, within the at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration;
• and
• if antenna switching is enabled, using a first antenna or a first antenna group for transmitting a first SRS transmission of the one or more SRS transmissions of the first type in the at least one uplink subframe and switching to using a second antenna or a second antenna group for transmitting a second SRS transmission of the one or more SRS transmissions of the first type in the at least one uplink subframe.

A method of wireless communications by a user equipment (UE) in a network, comprising:

• receiving, from the network, signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein the first configuration includes an indication of whether intra-subframe SRS frequency hopping is enabled or disabled for at least one uplink subframe;
• transmitting, within the at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration;
• and
• if frequency hopping is enabled, using a first subband for transmitting a first SRS transmission of the one or more SRS transmissions of the first type in the at least one uplink subframe and switching to using a second subband for transmitting a second SRS transmission of the one or more SRS transmissions of the first type in the at least one uplink subframe.

A method of wireless communications by a user equipment (UE) in a network, comprising:

• receiving, from the network, signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type;
• transmitting, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration;
• and
• receiving a trigger indication indicating that the one or more SRS transmissions of the first type and the one or more SRS transmissions of the second type are allowed to be transmitted in a same uplink subframe, wherein the at least one uplink subframe comprises the same uplink subframe.

A method of wireless communications by a user equipment (UE) in a network, comprising:

• receiving, from the network, signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein the first configuration includes a first indication of a transmission power for transmitting the one or more SRS transmissions of the first type and the second configuration includes a second indication of a transmission power for transmitting the one or more SRS transmissions of the second type;
• determining a power change between the transmission power for transmitting the one or more SRS transmissions of the first type and the transmission power for transmitting the one or more SRS transmissions of the second type is not supported by the UE;
• and
• transmitting, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based on:
• at least one of the first configuration or the second configuration, and
• a priority order in response to the determination that the power change is not supported by the UE.

A method of wireless communications by a user equipment (UE) in a network, comprising:

• receiving, from the network, signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type;
• transmitting, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration;
• and
• determining a latency between the one or more SRS transmissions of the first type and its trigger indication is not less than that a minimum value, wherein the transmitting is based further on the determination.

A method of wireless communications by a base station in a network, comprising:

• transmitting, to a user equipment (UE), signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein the first configuration includes an indication of whether intra-subframe SRS antenna switching is enabled or disabled for at least one uplink subframe;
• receiving, within the at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration;
• and
• if antenna switching is enabled, receiving a first SRS transmission of the one or more SRS transmissions of the first type in the at least one uplink subframe to obtain channel information of a first antenna or a first antenna group at the UE and receiving a second SRS transmission of the one or more SRS transmissions of the first type in the at least one uplink subframe to obtain channel information of a second antenna or a second antenna group.

A method of wireless communications by a base station in a network, comprising:

• transmitting, to a user equipment (UE), signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type;
• and
• receiving, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration;
• and
• transmitting a trigger indication of whether the one or more SRS transmissions of the first type and the one or more SRS transmissions of the second type are allowed to be transmitted in a same uplink subframe, wherein the at least one uplink subframe comprises the same uplink subframe.

A method of wireless communications by a base station in a network, comprising:

• transmitting, to a user equipment (UE), signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein:
• the first configuration includes a first indication of a transmission power for transmitting the one or more SRS transmissions of the first type and the second configuration includes a second indication of a transmission power for transmitting the one or more SRS transmissions of the second type, and
• a power change between the transmission power for transmitting the one or more SRS transmissions of the first type and the transmission power for transmitting the one or more SRS transmissions of the second type is not supported by the UE;
• and
• receiving, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based on:
• at least one of the first configuration or the second configuration, and
• a priority order in response to the determination that the power change is not supported by the UE.

An apparatus for wireless communications by a user equipment (UE) in a network, comprising:

• at least one processor configured to:
• receive, from the network, signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein the first configuration indicates an SRS repetition pattern for the one or more SRS transmissions of the first type;
• and
• transmit, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration, wherein, in order to transmit, within the at least one uplink subframe of the set of uplink subframes, the at least one processor is further configured to transmit the one or more SRS transmissions of the first type further based on the SRS repetition pattern;
• and
• a memory coupled with the at least one processor.

An apparatus for wireless communications by a base station (BS) in a network, comprising:

• at least one processor configured to:
• transmit, to a user equipment (UE), signaling indicating, for a set of uplink subframes, a first configuration for transmitting one or more SRS transmissions of a first type and a second configuration for transmitting one or more SRS transmission of a second type, wherein the first configuration indicates an SRS repetition pattern for the one or more SRS transmissions of the first type;
• and
• receive, within at least one uplink subframe of the set of uplink subframes, at least one of the one or more SRS transmissions of the first type or the one or more SRS transmissions of the second type based, at least in part, on at least one of the first configuration or the second configuration, wherein, in order to receive, within the at least one uplink subframe of the set of uplink subframes, the at least one processor is further configured to receive the one or more SRS transmissions of the first type further based on the SRS repetition pattern;
• and
• a memory coupled with the at least one processor.