Ultra-low latency lte reference signal transmission
AssigneeQUALCOMM Incorporated
InventorsWanshi CHEN, Peter GAAL, Shimman Arvind PATEL, Aleksandar DAMNJANOVIC
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Abstract
Various aspects described herein relate to communicating in a wireless network. A resource grant comprising an indicator of whether to transmit a demodulation reference signal (RS) for an uplink control channel or an uplink data channel can be received from a network entity. It can be determined whether to transmit the RS in at least one transmission time interval (TTI) based at least in part on the indicator.
Claims30
A method for communicating in a wireless network, comprising:
- generating, by a network entity, a resource grant for transmitting, in a transmission time interval (TTI) that is of a two symbol or three symbol duration, an uplink channel, wherein the resource grant indicates a first uplink channel symbol of the two symbol or three symbol duration of the TTI over which to transmit the uplink channel, and wherein the resource grant indicates to transmit a demodulation reference signal (RS) for the uplink channel in the TTI;
- transmitting, to a user equipment (UE), the resource grant;
- receiving, from the UE and based on the resource grant, the uplink channel in the first uplink channel symbol of the TTI;
- and
- receiving, from the UE and based on the resource grant, the demodulation RS in the TTI.
An apparatus for communicating in a wireless network, comprising:
- a transceiver;
- at least one processor communicatively coupled with the transceiver via a bus for communicating in the wireless network;
- and
- a memory communicatively coupled with the at least one processor and/or the transceiver via the bus;
- wherein the at least one processor is operable to:
- generate, by a network entity, a resource grant for transmitting, in a transmission time interval (TTI) that is of a two symbol or three symbol duration, an uplink channel, wherein the resource grant indicates a first uplink channel symbol of the two symbol or three symbol duration of the TTI over which to transmit the uplink channel, and wherein the resource grant indicates to transmit a demodulation reference signal (RS) for the uplink channel in the TTI;
- transmit, to a user equipment (UE), the resource grant;
- receive, from the UE and based on the resource grant, the uplink channel in the first uplink channel symbol of the TTI;
- and
- receive, from the UE and based on the resource grant, the demodulation RS in the TTI.
An apparatus for communicating in a wireless network, comprising:
- means for generating, by a network entity, a resource grant for transmitting, in a transmission time interval (TTI) that is of a two symbol or three symbol duration, an uplink channel, wherein the resource grant indicates a first uplink channel symbol of the two symbol or three symbol duration of the TTI over which to transmit the uplink channel, and wherein the resource grant indicates to transmit a demodulation reference signal (RS) for the uplink channel in the TTI;
- means for transmitting, to a user equipment (UE), the resource grant;
- means for receiving, from the UE and based on the resource grant, the uplink channel in the first uplink channel symbol of the TTI;
- and
- means for receiving, from the UE and based on the resource grant, the demodulation RS in the TTI.
A non-transitory computer-readable storage medium comprising computer-executable code for communicating in a wireless network, the code comprising:
- code for generating, by a network entity, a resource grant for transmitting, in a transmission time interval (TTI) that is of a two symbol or three symbol duration, an uplink channel, wherein the resource grant indicates a first uplink channel symbol of the two symbol or three symbol duration of the TTI over which to transmit the uplink channel, and wherein the resource grant indicates to transmit a demodulation reference signal (RS) for the uplink channel in the TTI;
- code for transmitting, to a user equipment (UE), the resource grant;
- code for receiving, from the UE and based on the resource grant, the uplink channel in the first uplink channel symbol of the TTI;
- and
- code for receiving, from the UE and based on the resource grant, the demodulation RS in the TTI.
Dependencies are inferred from the claim text.