Transmission device and transmission method
First Claim
1. A base station apparatus comprising:
- a setting section configured to allocate an unconfigured carrier indicator field value (CIF value) to a component carrier identification index of a newly added component carrier, while maintaining a correspondence relationship between CIF values and component carrier identification indexes, when a new component carrier is added to one or more component carriers, each of the CIF values being used to label each of the one or more component carriers; and
a transmitting section configured to transmit a notification signal to a terminal apparatus, the notification signal including the CIF value allocated to the newly added component carrier and the component carrier identification index of the newly added component carrier; and
when a part of the one or more component carriers is deleted,the setting section deletes a CIF value corresponding to the deleted component carrier; and
the transmitting section transmits the notification signal including the component carrier identification index of the deleted component carrier.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section (101) provided in a base station (100): modifies a CIF table that defines the correspondence between code points, which are used as labels for the respective component carriers contained in the component carrier set, and the identification information of the respective component carriers; and assigns a vacant code point to the component carrier to be added, while keeping the correspondence between the code points and the component carrier identification information defined in the CIF table before modification.
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Citations
8 Claims
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1. A base station apparatus comprising:
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a setting section configured to allocate an unconfigured carrier indicator field value (CIF value) to a component carrier identification index of a newly added component carrier, while maintaining a correspondence relationship between CIF values and component carrier identification indexes, when a new component carrier is added to one or more component carriers, each of the CIF values being used to label each of the one or more component carriers; and a transmitting section configured to transmit a notification signal to a terminal apparatus, the notification signal including the CIF value allocated to the newly added component carrier and the component carrier identification index of the newly added component carrier; and when a part of the one or more component carriers is deleted, the setting section deletes a CIF value corresponding to the deleted component carrier; and the transmitting section transmits the notification signal including the component carrier identification index of the deleted component carrier. - View Dependent Claims (2, 3, 4)
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5. A transmission method comprising:
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allocating an unconfigured carrier indicator field value (CIF value) to a component carrier identification index of a newly added component carrier, while maintaining a correspondence relationship between CIF values and component carrier identification indexes, when a new component carrier is added to one or more component carriers, each of the CIF values being used to label each of the one or more component carriers; and transmitting a notification signal to a terminal apparatus, the notification signal including the CIF value allocated to the newly added component carrier and the component carrier identification index of the newly added component carrier; and when a part of the one or more component carriers is deleted, deleting a CIF value corresponding to the deleted component carrier; and transmitting the notification signal including the component carrier identification index of the deleted component carrier. - View Dependent Claims (6, 7, 8)
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Specification