Open-loop timing and cyclic prefixes in cellular internet of things communication
AssigneeQUALCOMM Incorporated
InventorsJunyi Li, Frank Anton Lane
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Abstract
Methods, systems, and devices are described for wireless communication at a user equipment (UE). A UE may establish a connection with a cell based on an initial access procedure. The UE may also receive a downlink signal from the cell which includes a first cyclic prefix. The UE may transmit an uplink signal with a second cyclic prefix to the cell. The second cyclic prefix may have a different length than the first cyclic prefix.
Claims30
A method of wireless communication at a user equipment (UE), comprising:
- establishing a connection with a cell based on an initial access procedure;
- receiving a downlink signal from the cell, the downlink signal comprising an orthogonal frequency division multiple access (OFDMA) signal or single carrier frequency division multiple access (SC-FDMA) signal, the downlink signal further comprising a first cyclic prefix;
- and
- transmitting an uplink signal to the cell, wherein the uplink signal is one of an OFDMA signal or SC-FDMA signal with a second cyclic prefix, and wherein the second cyclic prefix has a different length than the first cyclic prefix.
An apparatus for wireless communication at a user equipment (UE), comprising:
- means for establishing a connection with a cell based on an initial access procedure;
- means for receiving a downlink signal from the cell, the downlink signal comprising an orthogonal frequency division multiple access (OFDMA) signal or single carrier frequency division multiple access (SC-FDMA) signal, the downlink signal further comprising a first cyclic prefix;
- and
- means for transmitting an uplink signal to the cell, wherein the uplink signal is one of an OFDMA signal or SC-FDMA signal with a second cyclic prefix, and wherein the second cyclic prefix has a different length than the first cyclic prefix.
An apparatus for wireless communication at a user equipment (UE), comprising:
- a processor;
- memory in electronic communication with the processor;
- and
- instructions stored in the memory;
- wherein the instructions are executable by the processor to:
- establish a connection with a cell based on an initial access procedure;
- receive a downlink signal from the cell, the downlink signal comprising an orthogonal frequency division multiple access (OFDMA) signal or single carrier frequency division multiple access (SC-FDMA) signal, the downlink signal further comprising a first cyclic prefix;
- and
- transmit an uplink signal to the cell, wherein the uplink signal is one of an OFDMA signal or SC-FDMA signal with a second cyclic prefix, and wherein the second cyclic prefix has a different length than the first cyclic prefix.
A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable to:
- establish a connection with a cell based on an initial access procedure;
- receive a downlink signal from the cell, the downlink signal comprising an orthogonal frequency division multiple access (OFDMA) signal or single carrier frequency division multiple access (SC-FDMA) signal, the downlink signal further comprising a first cyclic prefix;
- and
- transmit an uplink signal to the cell, wherein the uplink signal is one of an OFDMA signal or SC-FDMA signal with a second cyclic prefix, and wherein the second cyclic prefix has a different length than the first cyclic prefix.
Dependencies are inferred from the claim text.