Uplink multi-TTI scheduling in TDD system
First Claim
1. A method of operation of a radio network node operating according to a Time Division Duplexing, TDD, scheme in a cellular communications network, the method comprising:
- while operating according to the TDD scheme;
transmitting to a wireless device a first uplink grant that assigns first radio resources for a first multiple transmit time interval uplink transmission; and
transmitting to the wireless device a second uplink grant during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission,wherein the first radio resources comprise a set of consecutive subframes, and wherein the gap is a time domain gap within the set of consecutive subframes during which an uplink transmission on the first radio resources is interrupted.
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Accused Products
Abstract
Systems and methods are disclosed for transmission and reception of an uplink grant during a gap created in radio resources assigned by a previous multiple Transmit Time Interval (multi-TTI) uplink grant in a system operating according to a Time Division Duplexing (TDD) scheme. In one embodiment, a method of operation of a radio network node in a cellular communications network is provided. The method includes transmitting a first uplink grant that assigns radio resources for a multi-TTI uplink transmission, and transmitting a second uplink grant during a gap in the radio resources assigned by the first uplink grant. In one embodiment, by utilizing the gap to transmit the second uplink grant, uplink radio resources assigned for uplink transmission can be maximized, which is particularly beneficial in high uplink traffic conditions.
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Citations
44 Claims
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1. A method of operation of a radio network node operating according to a Time Division Duplexing, TDD, scheme in a cellular communications network, the method comprising:
while operating according to the TDD scheme; transmitting to a wireless device a first uplink grant that assigns first radio resources for a first multiple transmit time interval uplink transmission; and transmitting to the wireless device a second uplink grant during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, wherein the first radio resources comprise a set of consecutive subframes, and wherein the gap is a time domain gap within the set of consecutive subframes during which an uplink transmission on the first radio resources is interrupted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A radio network node operating according to a Time Division Duplexing, TDD, scheme in a cellular communications network, the radio network node comprising:
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a transceiver; a processor associated with the transceiver; and a memory containing instructions executable by the processor whereby the radio network node is operative to; while operating according to the TDD scheme; transmit, to a wireless device via the transceiver, a first uplink grant that assigns first radio resources for a first multiple transmit time interval uplink transmission; and transmit, to the wireless device via the transceiver, a second uplink grant during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, wherein the first radio resources comprise a set of consecutive subframes, and wherein the gap is a time domain gap within the set of consecutive subframes during which an uplink transmission on the first radio resource is interrupted.
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24. A method of operation of a wireless device operating according to a Time Division Duplexing, TDD, scheme in a cellular communications network, the method comprising:
- while operating according to the TDD scheme;
receiving a first uplink grant from a radio network node that assigns first radio resources for a first multiple transmit time interval uplink transmission; and interrupting an uplink transmission on the first radio resources to listen for a second uplink grant from the radio network node during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, wherein the first radio resources comprise a set of consecutive subframes, and wherein the gap is a time domain gap within the set of consecutive subframes. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
- while operating according to the TDD scheme;
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44. A wireless device operating according to a Time Division Duplexing, TDD, scheme in a cellular communications network, the wireless device comprising:
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a transceiver; a processor associated with the transceiver; and a memory containing instructions executable by the processor, whereby the wireless device is operative to; while operating according to the TDD scheme; receive, via the transceiver, a first uplink grant from a radio network node that assigns first radio resources for a first multiple transmit time interval uplink transmission; and interrupting an uplink transmission on the first radio resources to listen, via the transceiver, for a second uplink grant from the radio network node during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, wherein the first radio resources comprise a set of consecutive subframes, and wherein the gap is a time domain gap within the set of consecutive subframes.
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Specification