Method and apparatus for scheduling user equipment uplink transmissions on an unlicensed carrier
First Claim
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1. A method comprising:
- communicating, by a first device, with a second device on a carrier;
sending, from the first device to the second device, an uplink grant, where the uplink grant includes a field regarding a sounding reference signal transmission of a subframe; and
receiving at the first device from the second device, the sounding reference signal in an initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol of the subframe; and
receiving, at the first device from the second device, a physical uplink shared channel in at least a portion of a remaining part of the subframe, where the remaining part of the subframe occurs later than the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol,wherein the uplink grant includes a field requesting the sounding reference signal transmission, andwherein the reception of the sounding reference signal in the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol is in response to a particular value of the field in the uplink grant requesting the sounding reference signal transmission.
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Abstract
A method and apparatus schedule user equipment uplink transmissions on an unlicensed carrier. An uplink grant can be sent. The uplink grant can include a field regarding a sounding reference signal transmission of a subframe. The sounding reference signal can be received in an initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol of the subframe. A physical uplink shared channel can be received in at least a portion of a remaining part of the subframe. The remaining part of the subframe can occur later than the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol.
31 Citations
12 Claims
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1. A method comprising:
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communicating, by a first device, with a second device on a carrier; sending, from the first device to the second device, an uplink grant, where the uplink grant includes a field regarding a sounding reference signal transmission of a subframe; and receiving at the first device from the second device, the sounding reference signal in an initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol of the subframe; and receiving, at the first device from the second device, a physical uplink shared channel in at least a portion of a remaining part of the subframe, where the remaining part of the subframe occurs later than the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol, wherein the uplink grant includes a field requesting the sounding reference signal transmission, and wherein the reception of the sounding reference signal in the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol is in response to a particular value of the field in the uplink grant requesting the sounding reference signal transmission. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus comprising:
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a controller that controls operations of the apparatus; and a transceiver that communicates with a second device on a carrier, sends an uplink grant to the second device, where the uplink grant field regarding a sounding reference signal transmission of a subframe; and receives the sounding reference signal from the second device in an initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol of the subframe; and receives a physical uplink shared channel from the second device in at least a portion of a remaining part of the subframe, where the remaining part of the subframe occurs later than the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol, wherein the uplink grant includes a field requesting the sounding reference signal transmission, and wherein the reception of the sounding reference signal in the initial discrete Fourier transform spread orthogonal frequency division multiplexing symbol is in response to a particular value of the field in the uplink grant requesting the sounding reference signal transmission. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification