BASE STATION APPARATUS, TERMINAL APPARATUS, AND COMMUNICATION METHOD THEREOF
First Claim
1. A base station apparatus for communicating with multiple terminal apparatuses, the base station apparatus comprising:
- a receiver configured to receive an identification signal identifying each terminal apparatus having transmitted uplink data and the uplink data; and
a transmitter to transmit a signal indicating a delivery confirmation for the uplink data, whereinthe signal indicating the delivery confirmation includes a signal indicating a bundled delivery confirmation for the uplink data received on an identical time resource and an identical frequency resource, and a signal indicating a delivery confirmation for each terminal apparatus,the signal indicating the bundled delivery confirmation is associated with a parameter shared by the terminal apparatuses having transmitted the uplink data received on the identical time resource and the identical frequency resource, andthe signal indicating the delivery confirmation for each terminal apparatus is associated with a parameter specific to the terminal apparatus.
2 Assignments
0 Petitions
Accused Products
Abstract
To provide a base station apparatus, a terminal apparatus, and a communication method capable of efficiently performing retransmission control for small size data in grant-free multiple access where the base station apparatus accommodates a large number of terminal apparatuses. The base station apparatus for communicating with multiple terminal apparatuses, the base station apparatus including a receiver configured to receive an identification signal identifying a terminal apparatus having transmitted uplink data and the uplink data, and a transmitter configured to transmit a delivery confirmation signal for the uplink data, wherein the delivery confirmation signal includes a bundled delivery confirmation signal for the uplink data received on an identical time resource and an identical frequency resource, and a delivery confirmation signal for each terminal apparatus, the bundled delivery confirmation signal is associated with a parameter shared by the terminal apparatuses having transmitted the uplink data received on the identical time resource and the identical frequency resource, and the delivery confirmation signal for each terminal apparatus is associated with a parameter specific to the terminal apparatus.
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Citations
18 Claims
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1. A base station apparatus for communicating with multiple terminal apparatuses, the base station apparatus comprising:
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a receiver configured to receive an identification signal identifying each terminal apparatus having transmitted uplink data and the uplink data; and a transmitter to transmit a signal indicating a delivery confirmation for the uplink data, wherein the signal indicating the delivery confirmation includes a signal indicating a bundled delivery confirmation for the uplink data received on an identical time resource and an identical frequency resource, and a signal indicating a delivery confirmation for each terminal apparatus, the signal indicating the bundled delivery confirmation is associated with a parameter shared by the terminal apparatuses having transmitted the uplink data received on the identical time resource and the identical frequency resource, and the signal indicating the delivery confirmation for each terminal apparatus is associated with a parameter specific to the terminal apparatus. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A terminal apparatus for communicating with a base station apparatus, the terminal apparatus comprising:
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a transmitter configured to transmit an identification signal indicating that the terminal apparatus itself transmits uplink data and the uplink data; and a receiver configured to receive a signal indicating a delivery confirmation for the uplink data, wherein the receiver tries to receive the signal indicating the delivery confirmation through despread processing using a sequence of the identification signal and descramble processing using a sequence generated using a subframe number that the identification signal sequence or the uplink data has been transmitted. - View Dependent Claims (8)
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9. (canceled)
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10. (canceled)
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11. A terminal apparatus for performing grant-free communication with a base station apparatus, the terminal apparatus comprising:
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a transmitter configured to transmit uplink data; and a receiver configured to receive information indicating a retransmission timing of the uplink data and a signal indicating a delivery confirmation for the uplink data, wherein the information indicating the retransmission timing includes multiple transmission intervals for retransmission, and in a case that the signal indicating the delivery confirmation is a delivery confirmation indicating a negative acknowledgement, the transmitter retransmits the uplink data based on a transmission interval selected from the multiple transmission intervals. - View Dependent Claims (12, 13, 14)
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15. (canceled)
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16. (canceled)
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17. (canceled)
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18. (canceled)
Specification