Physical uplink control channel cells in a communication network using carrier aggregation
First Claim
1. A method, the method comprising:
- executing, by a user equipment, communication between the user equipment and a communication network based on carrier aggregation in which a number of component carriers corresponding to a number of serving cells are aggregated and at least two physical uplink control channel (PUCCH) groups are configured, the communication being executed using the following;
a first group of the at least two PUCCH groups, the first group comprising a first cell of the number of serving cells, which is a primary serving cell, that carries a first PUCCH, and first serving cells of the number of serving cells, which use the first PUCCH, anda second group of the at least two PUCCH groups, the second group comprising a second cell of the number of serving cells, which is a secondary serving cell, that carries a second PUCCH, and second serving cells of the number of serving cells, which use the second PUCCH; and
in case a failure in the primary serving cell is detected by the user equipment, continuing the communication by exchanging by the user equipment the first group and the second group, wherein the secondary serving cell that carries the second PUCCH becomes a current primary serving cell and the primary serving cell that carried the first PUCCH in the first group becomes a current secondary serving cell.
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Accused Products
Abstract
A communication is executed between a user equipment and a communication network based on carrier aggregation using a first group of at least two PUCCH groups, the first group including a primary serving cell that carries a first PUCCH, and first serving cells which use the first PUCCH, and a second group of the at least two PUCCH groups, the second group including a secondary serving cell that carries a second PUCCH, and second serving cells which use the second PUCCH. In case a predetermined condition occurs, the communication is continued by exchanging the first group by the second group wherein the secondary serving cell that carries the second PUCCH becomes the primary serving cell and vice versa.
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Citations
11 Claims
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1. A method, the method comprising:
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executing, by a user equipment, communication between the user equipment and a communication network based on carrier aggregation in which a number of component carriers corresponding to a number of serving cells are aggregated and at least two physical uplink control channel (PUCCH) groups are configured, the communication being executed using the following; a first group of the at least two PUCCH groups, the first group comprising a first cell of the number of serving cells, which is a primary serving cell, that carries a first PUCCH, and first serving cells of the number of serving cells, which use the first PUCCH, and a second group of the at least two PUCCH groups, the second group comprising a second cell of the number of serving cells, which is a secondary serving cell, that carries a second PUCCH, and second serving cells of the number of serving cells, which use the second PUCCH; and in case a failure in the primary serving cell is detected by the user equipment, continuing the communication by exchanging by the user equipment the first group and the second group, wherein the secondary serving cell that carries the second PUCCH becomes a current primary serving cell and the primary serving cell that carried the first PUCCH in the first group becomes a current secondary serving cell. - View Dependent Claims (2, 3, 4, 10, 11)
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5. A computer program product comprising a computer-readable medium having a program, comprising software code portions, the program causing the apparatus to perform the following, when the program is run on the apparatus:
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executing, by a user equipment, communication between the user equipment and a communication network based on carrier aggregation in which a number of component carriers corresponding to a number of serving cells are aggregated and at least two physical uplink control channel (PUCCH) groups are configured, the communication being executed using the following; a first group of the at least two PUCCH groups, the first group comprising a first cell of the number of serving cells, which is a primary serving cell, that carries a first PUCCH, and first serving cells of the number of serving cells, which use the first PUCCH, and a second group of the at least two PUCCH groups, the second group comprising a second cell of the number of serving cells, which is a secondary serving cell, that carries a second PUCCH, and second serving cells of the number of serving cells, which use the second PUCCH; and in case a failure in the primary serving cell is detected by the user equipment, continuing the communication by exchanging by the user equipment the first group and the second group, wherein the secondary serving cell that carries the second PUCCH becomes a current primary serving cell and the primary serving cell that carried the first PUCCH in the first group becomes a current secondary serving cell.
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6. A communication apparatus, comprising:
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at least one processor and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to perform; executing, by a user equipment, communication between the user equipment and a communication network, based on carrier aggregation in which a number of component carriers corresponding to a number of serving cells are aggregated, and at least two physical uplink control channel (PUCCH) groups are configured, the communication being executed using the following; a first group of the at least two PUCCH groups, wherein the first group comprises a first cell of the number of serving cells, which is a primary serving cell, that carries a first PUCCH, and first serving cells of the number of serving cells, which use the first PUCCH, and a second group of the at least two PUCCH groups, wherein the second group comprises a second cell of the number of serving cells, which is a secondary serving cell, that carries a second PUCCH, and second serving cells of the number of serving cells, which use the second PUCCH, in case failure in the primary serving cell is detected by the user equipment, continuing the communication by exchanging by the user equipment the first group and the second group, wherein the secondary serving cell that carries the second PUCCH becomes a current primary serving cell and the primary serving cell that carried the first PUCCH in the first group becomes a current secondary serving cell. - View Dependent Claims (7, 8, 9)
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Specification