US 2016/0081066 A1Published application

Method for transmitting uplink response signals, base station, mobile station and communication system

AssigneeFujitsu Limited

InventorsYuantao ZHANG, Yi ZHANG, Yuanrong LAN, Hua ZHOU, Jianming WU

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Abstract

A method for transmitting uplink response signals, base station, mobile station and communication system, includes judging whether to use a downlink secondary component carrier to transmit data to a mobile station; if the judging result is positive, allocating resources according to the number of transmission blocks for transmitting the downlink data in the secondary component carrier, accordingly the mobile station is able to use the resources corresponding to a preconfigured primary component carrier and the resources allocated to the secondary component carrier to select uplink resources for transmitting response signals.

Claims11

Dependent claims

A user equipment (UE), comprising:

a receiver configured to receive downlink data transmitted by a base station via a downlink component carrier;
a circuit configured to select uplink resources from available resources for transmitting response signals obtained by decoding the received downlink data and select corresponding modulation symbols when the downlink component carrier for transmitting the downlink data includes a secondary component carrier;
wherein the available resources include resources corresponding to a primary component carrier and resources allocated to the secondary component carrier by the base station;
and
a transmitter configured to transmit the response signals by using the selected uplink resources and the corresponding modulation symbols;
wherein the circuit is further configured to select the uplink resources for transmitting the response signals and the modulation symbols by using a mapping relation between a state of the response signals and the selected resources and the modulation symbols according to the state of the response signals;
and,
wherein the mapping relation includes cases in which the resource corresponding to the response signal that is NACK/DTX is not selected;
where NACK represents Negative Acknowledgement, and DTX represents Discontinuous Transmission;
and when the response signals are all DTX, no resource is selected.

7 more elements

A base station, comprising:

a transmitter configured to transmit data to a user equipment (UE) by using a downlink secondary component carrier;
a circuit configured to allocate resources according to a number of transmission blocks for transmitting downlink data in the secondary component carrier, such that the UE is able to select the uplink resources for transmitting response signals from available resources and select corresponding modulation symbols, wherein, the available resources include resources corresponding to a primary component carrier and the resources allocated to the secondary component carrier;
wherein the UE is further able to select the uplink resources for transmitting the response signals and the modulation symbols by using a mapping relation between a state of the response signals and the selected resources and the modulation symbols according to the state of the response signals;
and,
wherein the mapping relation includes cases in which the resource corresponding to the response signal that is NACK/DTX is not selected;
where NACK represents Negative Acknowledgement, and DTX represents Discontinuous Transmission;
and when the response signals are all DTX, no resource is selected.

4 more elements

A user equipment (UE), comprising:

a control circuit configured to select uplink resources from available resources for transmitting response signals obtained by decoding downlink data received from a base station via a downlink component carrier, and the control circuit configured to select corresponding modulation symbols when the downlink component carrier for transmitting the downlink data includes a secondary component carrier, the available resources include resources corresponding to a primary component carrier and resources allocated to the secondary component carrier by the base station;
and
a transmitter configured to transmit the response signals by using the selected uplink resources and the corresponding modulation symbols;
wherein the control circuit is further configured to select the uplink resources for transmitting the response signals and the modulation symbols by using a mapping relation between a state of the response signals and the selected resources and the modulation symbols according to the state of the response signals;
and,
wherein the mapping relation includes cases in which the resource corresponding to the response signal that is NACK/DTX is not selected;
where NACK represents Negative Acknowledgement, and DTX represents Discontinuous Transmission;
and when the response signals are all DTX, no resource is selected.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/942,123Filed 16 Nov 2015
Priority: 20 Sep 2010
Published: 17 Mar 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 1/1861
Arrangements specially adapted for the receiver end: physical mapping arrangements
H04L 5/001
The frequencies being orthogonal, e.g. OFDM or DMT: the frequencies being arranged in component carriers
H04L 5/0044
Arrangements for allocating sub-channels of the transmission path: allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals

Family

Application13/847,639Continuation · filed 20 Mar 2013
Application14/942,123Continuation
US 2013/0208685 A1Published application
US 9,232,508 B2Related patent
US 9,538,522 B2Related patent
US 2016/0081066 A1This patent

From the US filing history. Foreign family members aren’t listed.