Dynamic resource allocation, scheduling and signaling for variable data rate service in LTE
First Claim
1. A wireless transmit/receive unit (WTRU) comprising:
- a receiver configured to receive first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate;
a transmitter configured to transmit first uplink data according to the first allocation of resources;
while the first allocation of resources is valid;
the receiver configured to receive second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and
the transmitter configured to transmit second uplink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the second control information.
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Abstract
A method and apparatus are provided for dynamic resource allocation, scheduling and signaling for variable data real time services (RTS) in long term evolution (LTE) systems. Preferably, changes in data rate for uplink RTS traffic are reported to an evolved Node B (eNB) by a UE using layer 1, 2 or 3 signaling. The eNB dynamically allocates physical resources in response to a change in data rate by adding or removing radio blocks currently assigned to the data flow, and the eNB signals the new resource assignment to the UE. In an alternate embodiment, tables stored at the eNB and the UE describe mappings of RTS data rates to physical resources under certain channel conditions, such that the UE uses the table to locally assign physical resources according to changes in UL data rates. Additionally, a method and apparatus for high level configuration of RTS data flows is also presented.
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Citations
48 Claims
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1. A wireless transmit/receive unit (WTRU) comprising:
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a receiver configured to receive first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; a transmitter configured to transmit first uplink data according to the first allocation of resources; while the first allocation of resources is valid; the receiver configured to receive second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and the transmitter configured to transmit second uplink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the second control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wireless transmit/receive unit (WTRU) comprising:
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a receiver configured to receive first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; the receiver configured to receive first downlink data according to the first allocation of resources; while the first allocation of resources is valid; the receiver configured to receive second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and the receiver configured to receive second downlink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the second control information. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A base station comprising:
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a transmitter configured to transmit, to a wireless transmit/receive unit (WTRU), a first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; a receiver configured to receive, from the WTRU, first uplink data according to the first allocation of resources; while the first allocation of resources is valid; the transmitter configured to transmit, to the WTRU, second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and the receiver configured to receive, from the WTRU, second uplink data according to the second allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the control information.
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24. A base station comprising:
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a transmitter configured to transmit, to a wireless transmit/receive unit (WTRU), first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; the transmitter configured to transmit, to the WTRU, first downlink data according to the first allocation of resources; while the first allocation of resources is valid; the transmitter configured to transmit, to the WTRU, second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and the transmitter configured to transmit, to the WTRU, second downlink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the control information.
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25. A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
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receiving first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; transmitting first uplink data according to the first allocation of resources; while the first allocation of resources is valid; receiving second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and transmitting second uplink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the second control information. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
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receiving first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; receiving first downlink data according to the first allocation of resources; while the first allocation of resources is valid; receiving second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and receiving second downlink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the second control information. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method performed by a base station, the method comprising:
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transmitting, to a wireless transmit/receive unit (WTRU), a first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; receiving, from the WTRU, first uplink data according to the first allocation of resources; while the first allocation of resources is valid; transmitting, to the WTRU, second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and receiving, from the WTRU, second uplink data according to the second allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the control information.
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48. A method performed by a base station, the method comprising:
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transmitting, to a wireless transmit/receive unit (WTRU), first control information indicating a first allocation of resources, wherein the first allocation of resources indicates at least a first number of resource blocks assigned to the WTRU and is associated with a first data rate; transmitting, to the WTRU, first downlink data according to the first allocation of resources; while the first allocation of resources is valid; transmitting, to the WTRU, second control information indicating a second allocation of resources, wherein the second allocation of resources indicates at least a second number of resource blocks assigned to the WTRU and is associated with a second data rate different than the first data rate; and transmitting, to the WTRU, second downlink data according to the second allocation of resources instead of the first allocation of resources for a predetermined time duration, wherein the predetermined time duration is not specified by the control information.
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Specification