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US 10,772,127 B2Granted
Method and device for transmitting data burst in wireless access system supporting unlicensed band and carrier aggregation
AssigneeLG Electronics Inc.
InventorsSeonwook Kim, Joonkui Ahn, Hanbyul Seo, Byounghoon Kim, Hanjun Park
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Abstract
A method for transmitting a signal in a wireless access system and a device supporting the same includes, for carrier sensing methods, a method for performing a channel access procedure, for selecting a representative carrier, and for transmitting a data burst.
Claims12
A method for a base station in a wireless access system, the method comprising:
- selecting a first component carrier (CC) included in a set of CCs, wherein the CCs are configured in an unlicensed band;
- performing a first channel access procedure (CAP) on the first CC;
- transmitting, based on the first CAP, a first transmission burst on the first CC after the first CC is determined to be idle and after a random number decrements to 0 based on decrementing the random number by 1 for each slot duration related to the first CC determined to be idle, wherein the random number is randomly obtained among a value included in a contention window;
- performing a second CAP on a second CC included in the set of CCs for a predetermined time duration immediately before the transmission of the first transmission burst on the first CC, wherein the second CC is different from the first CC;
- and
- transmitting, based on the second CAP, a second transmission burst on the second CC after the second CC is determined to be idle for the predetermined time duration.
3 more elements
A base station in a wireless access system, the base station comprising:
- a memory;
- and
- at least one processor coupled with the memory and configured to:
- select a first component carrier (CC) included in a set of CCs, wherein the CCs are configured in an unlicensed band;
- perform a first channel access procedure (CAP) on the first CC;
- transmit, based on the first CAP, a first transmission burst on the first CC after the first CC is determined to be idle and after a random number decrements to 0 based on decrementing the random number by 1 for each slot duration related to the first CC determined to be idle, wherein the random number is randomly obtained among a value included in a contention window;
- perform a second CAP on a second CC included in the set of CCs for a predetermined time duration immediately before the transmission of the first transmission burst on the first CC, wherein the second CC is different from the first CC;
- and
- transmit, based on the second CAP, a second transmission burst on the second CC after the second CC is determined to be idle for the predetermined time duration.
6 more elements
A method for a user equipment (UE) in a wireless access system, the method comprising:
- selecting a first component carrier (CC) included in a set of CCs, wherein the CCs are configured in an unlicensed band;
- performing a first channel access procedure (CAP) on the first CC;
- transmitting, based on the first CAP, a first transmission burst on the first CC after the first CC is determined to be idle and after a random number decrements to 0 based on decrementing the random number by 1 for each slot duration related to the first CC determined to be idle, wherein the random number is randomly obtained among a value included in a contention window;
- performing a second CAP on a second CC included in the set of CCs—for a predetermined time duration immediately before the transmission of the first transmission burst on the first CC, wherein the second CC is different from the first CC;
- and
- transmitting, based on the second CAP, a second transmission burst on the second CC after the second CC is determined to be idle for the predetermined time duration.
3 more elements
A user equipment (UE) for transmitting a signal in a wireless access system, the UE comprising:
- a memory;
- and
- at least one processor coupled with the memory and configured to:
- select a first component carrier (CC) included in a set of CCs, wherein the CCs are configured in an unlicensed band;
- perform a first channel access procedure (CAP) on the first CC;
- transmit, based on the first CAP, a first transmission burst on the first CC after the first CC is determined to be idle and after a random number decrements to 0 based on decrementing the random number by 1 for each slot duration related to the first CC determined to be idle, wherein the random number is randomly obtained among a value included in a contention window;
- perform a second CAP on a second CC included in the set of CCs for a predetermined time duration immediately before the transmission of the first transmission burst on the first CC, wherein the second CC is different from the first CC;
- and
- transmit, based on the second CAP, a second transmission burst on the second CC after the second CC is determined to be idle for the predetermined time duration.
6 more elements
Dependencies are inferred from the claim text.