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US 11,606,782 B2Granted
Event triggered multi-link channel quality measurement and report for mission critical applications
AssigneeQUALCOMM Incorporated
InventorsKambiz Azarian Yazdi, Jing Jiang, Tingfang Ji, John Edward Smee
Life of this patent
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Abstract
A transmitter may allocate resources across multiple links for a transmission to a receiver. The transmitter may transmit a resource grant to the receiver. The transmission may include a data packet allocated across multiple links, and pilot signals on a number of links. The receiver may use an indicator included with the resource grant to trigger measurement of channel quality for links with pilot signals.
Claims30
A method of wireless communication, comprising:
- receiving a first resource grant that includes an allocation of resource blocks for a downlink transmission via a plurality of component carriers;
- receiving, based at least in part on the allocation, a data packet distributed across a first carrier and a second carrier of the plurality of component carriers according to a first distribution;
- receiving a pilot signal via each of the first carrier and the second carrier;
- performing channel quality indicator (CQI) measurements in response to an indication received with the first resource grant, the CQI measurements based at least in part on the pilot signals received via each of the first carrier and the second carrier;
- receiving a second resource grant that includes a reallocation of resource blocks across both the first carrier and the second carrier for a retransmission of the data packet, wherein the reallocation is based at least in part on the CQI measurements, wherein the reallocation allocates a first quantity of resource blocks of the data packet to the first carrier and a second quantity of resource blocks of the data packet which is less than the first quantity to the second carrier based at least in part on a first channel quality associated with the first carrier being greater than a second channel quality associated with the second carrier;
- and
- receiving, based at least in part on the reallocation, the data packet distributed across the first carrier and the second carrier according to a second distribution which is different from the first distribution.
4 more elements
A method of wireless communication, comprising:
- allocating resource blocks for a transmission of a data packet distributed across a first carrier and a second carrier of a plurality of component carriers according to a first distribution;
- transmitting pilot signals via the first carrier and the second carrier;
- receiving channel quality indicator (CQI) data via a single component carrier based at least in part on measurements of the pilot signals transmitted via the first carrier and the second carrier, the measurements being triggered by the allocation of the resource blocks;
- and
- reallocating, based at least in part on the received CQI data, resource blocks for a retransmission of the data packet distributed across the first carrier and the second carrier according to a second distribution which is different from the first distribution, wherein the second distribution allocates a first quantity of resource blocks of the data packet to the first carrier and a second quantity of resource blocks of the data packet which is less than the first quantity to the second carrier based at least in part on a first channel quality associated with the first carrier being greater than a second channel quality associated with the second carrier.
2 more elements
An apparatus for wireless communication, comprising:
- a processor;
- memory coupled with the processor;
- and
- instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
- receive a first resource grant that includes an allocation of resource blocks for a downlink transmission via a plurality of component carriers;
- receive, based at least in part on the allocation, a data packet distributed across a first carrier and a second carrier of the plurality of component carriers according to a first distribution;
- receive a pilot signal via each of two or more of the first carrier and the second carrier;
- perform channel quality indicator (CQI) measurements in response to an indication received with the first resource grant, the CQI measurements based at least in part on the pilot signals received via each of the first carrier and the second carrier;
- receive a second resource grant that includes a reallocation of resource blocks across both the first carrier and the second carrier for a retransmission of the data packet, wherein the reallocation is based at least in part on the CQI measurements;
- and
- receive, based at least in part on the reallocation, the data packet distributed across the first carrier and the second carrier according to a second distribution which is different from the first distribution, wherein the second distribution allocates a first quantity of resource blocks of the data packet to the first carrier and a second quantity of resource blocks of the data packet which is less than the first quantity to the second carrier based at least in part on a first channel quality associated with the first carrier being greater than a second channel quality associated with the second carrier.
8 more elements
An apparatus for wireless communication, comprising:
- a processor;
- memory coupled with the processor;
- and
- instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
- allocate resource blocks for a transmission of a data packet distributed across a first carrier and a second carrier of a plurality of component carriers according to a first distribution;
- transmit pilot signals via the first carrier and the second carrier;
- receive channel quality indicator (CQI) data via a single component carrier based at least in part on measurements of the pilot signals transmitted via the first carrier and the second carrier, the measurements being triggered by the allocation of the resource blocks;
- and
- reallocate, based at least in part on the received CQI data, resource blocks for a retransmission of the data packet distributed across the first carrier and the second carrier according to a second distribution which is different from the first distribution, wherein the second distribution allocates a first quantity of resource blocks of the data packet to the first carrier and a second quantity of resource blocks of the data packet which is less than the first quantity to the second carrier based at least in part on a first channel quality associated with the first carrier being greater than a second channel quality associated with the second carrier.
6 more elements
Dependencies are inferred from the claim text.