DYNAMIC SOUNDING REFERENCE SIGNAL SCHEDULING
First Claim
1. A method for wireless communication, comprising:
- receiving, at a user equipment (UE), a sounding reference signal (SRS) grant message from a base station, the SRS grant message based at least in part on an identified SRS configuration, the SRS grant message comprising an indication of SRS parameters;
receiving, at the UE, downlink control information (DCI), wherein information in the DCI contradicts the indication of SRS parameters in the SRS grant message;
determining to ignore information received at the UE based at least in part on the SRS grant message and the DCI; and
transmitting, to the base station, one or more SRS transmissions based at least in part on the determination.
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Accused Products
Abstract
Methods, systems, and devices for wireless communication are described. A base station may identify a sounding reference signal (SRS) configuration for user equipment (UE). The base station may transmit an SRS grant message to a UE indicating the SRS configuration. An indication of SRS parameters may be included in the SRS grant message, and may include the SRS parameters or a location of the SRS parameters. That is, SRS parameters may be transmitted in a control channel with the SRS grant message or may be separately sent in a data channel as indicated by the indication of SRS parameters. In some cases, SRS parameters may be determined based on previously received UE feedback regarding channel conditions or power limitations. Alternatively, the base station may make its own environment measurements or assign SRS parameters autonomously. The UE may signal SRS transmissions to the base station according to the SRS grant message.
11 Citations
30 Claims
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1. A method for wireless communication, comprising:
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receiving, at a user equipment (UE), a sounding reference signal (SRS) grant message from a base station, the SRS grant message based at least in part on an identified SRS configuration, the SRS grant message comprising an indication of SRS parameters; receiving, at the UE, downlink control information (DCI), wherein information in the DCI contradicts the indication of SRS parameters in the SRS grant message; determining to ignore information received at the UE based at least in part on the SRS grant message and the DCI; and transmitting, to the base station, one or more SRS transmissions based at least in part on the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for wireless communication, comprising:
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identifying a sounding reference signal (SRS) configuration for a user equipment (UE); transmitting an SRS grant message to the UE, the SRS grant message based at least in part on the SRS configuration for the UE, the SRS grant message comprising an indication of SRS parameters; transmitting downlink control information (DCI), wherein information transmitted in the DCI contradicts the indication of SRS parameters in the SRS grant message; and receiving, from the UE, one or more SRS transmissions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for wireless communication, in a system comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; receive, at a user equipment (UE), a sounding reference signal (SRS) grant message from a base station, the SRS grant message based at least in part on an identified SRS configuration, the SRS grant message comprising an indication of SRS parameters; receive, at the UE, downlink control information (DCI), wherein information in the DCI contradicts the indication of SRS parameters in the SRS grant message; determine to ignore information received at the UE based at least in part on the SRS grant message and the DCI; and transmit, to the base station, one or more SRS transmissions based at least in part on the determination. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An apparatus for wireless communication, in a system comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; identify a sounding reference signal (SRS) configuration for a user equipment (UE); transmit an SRS grant message to the UE, the SRS grant message based at least in part on the SRS configuration for the UE, the SRS grant message comprising an indication of SRS parameters; transmit downlink control information (DCI), wherein information transmitted in the DCI contradicts the indication of SRS parameters in the SRS grant message; and receive, from the UE, one or more SRS transmissions.
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Specification