Method of transmitting and receiving acknowledgment signal in a wireless communication system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04L-005/00
H04L-001/16
H04L-001/18
H04L-001/00
출원번호
US-0547002
(2014-11-18)
등록번호
US-9077502
(2015-07-07)
발명자
/ 주소
Yoon, Young Cheul
Sun, Li-Hsiang
Kim, Sang Gook
Lee, Suk Woo
Wang, Shu
출원인 / 주소
LG ELECTRONICS INC.
대리인 / 주소
Lee, Hong, Degerman, Kang & Waimey
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A method of receiving an acknowledgement (ACK) signal from at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes transmitting at least one packet via a packet data channel from an access network (AN), receiving at least one ACK sign
A method of receiving an acknowledgement (ACK) signal from at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes transmitting at least one packet via a packet data channel from an access network (AN), receiving at least one ACK signal from the at least one AT using same channelization resources, wherein each AT is assigned a code specific to each AT, and identifying the ACK signal corresponding to the transmitted packet from the received at least one ACK signal.
대표청구항▼
1. A method of receiving a plurality of acknowledgement (ACK)/negative acknowledgement (NAK) signals at a base station (BS) in a wireless communication system utilizing an orthogonal frequency division multiplexing (OFDM) scheme, the method comprising: transmitting, by the BS, a plurality of data pa
1. A method of receiving a plurality of acknowledgement (ACK)/negative acknowledgement (NAK) signals at a base station (BS) in a wireless communication system utilizing an orthogonal frequency division multiplexing (OFDM) scheme, the method comprising: transmitting, by the BS, a plurality of data packets to a plurality of mobile stations;receiving, by the BS, a plurality of first ACK/NAK signals for the plurality of data packets from the plurality of mobile stations, wherein the plurality of first ACK/NAK signals are multiplexed on a first set of orthogonal frequency tones using a plurality of sequences corresponding to the plurality of mobile stations;receiving, by the BS, a plurality of second ACK/NAK signals for the plurality of data packets from the plurality of mobile stations, wherein the plurality of second ACK/NAK signals are multiplexed on a second set of orthogonal frequency tones; anddetermining, by the BS, whether the plurality of data packets are successfully received by the plurality of mobile stations based on the plurality of first ACK/NAK signals and the plurality of second ACK/NAK signals;wherein the first set of orthogonal frequency tones are different from the second set of orthogonal frequency tones over two transmission instants. 2. The method of claim 1, wherein the plurality of sequences are generated from a single sequence. 3. The method of claim 1, wherein the plurality of sequences are a plurality of scrambling sequences. 4. The method of claim 3, wherein the plurality of scrambling sequences are pseudo noise sequence codes. 5. A method of transmitting an acknowledgement (ACK)/negative acknowledgment (NAK) signal at a mobile station in a wireless communication system utilizing an orthogonal frequency division multiplexing (OFDM) scheme, the method comprising: receiving, by the mobile station, a data packet from a base station (BS);transmitting, by the mobile station, a first ACK/NAK signal for the data packet to the BS via a first set of orthogonal frequency tones; andtransmitting, by the mobile station, a second ACK/NAK signal for the data packet to the BS via a second set of orthogonal frequency tones;wherein the first set of orthogonal frequency tones and the second set of orthogonal frequency tones are shared between a plurality of mobile stations for ACK/NAK signal transmission by using a plurality of sequences corresponding to the plurality of mobile stations; andwherein the first set of orthogonal frequency tones are different from the second set of orthogonal frequency tones over two transmission instants. 6. The method of claim 5, wherein the plurality of sequences are generated from a single sequence. 7. The method of claim 5, wherein the plurality of sequences are a plurality of scrambling sequences. 8. The method of claim 6, wherein the plurality of scrambling sequences are pseudo noise sequence codes. 9. A base station (BS) configured to receive a plurality of acknowledgement (ACK)/negative acknowledgement (NAK) signals in a wireless communication system utilizing an orthogonal frequency division multiplexing (OFDM) scheme, the BS comprising: a transmitter configured to transmit a plurality of data packets to a plurality of mobile stations;a receiver configured to receive: a plurality of first ACK/NAK signals for the plurality of data packets from the plurality of mobile stations, wherein the plurality of first ACK/NAK signals are multiplexed on a first set of orthogonal frequency tones using a plurality of sequences corresponding to the plurality of mobile stations; anda plurality of second ACK/NAK signals for the plurality of data packets from the plurality of mobile stations, wherein the plurality of second ACK/NAK signals are multiplexed on a second set of orthogonal frequency tones; anda processor configured to determine whether the plurality of data packets are successfully received by the plurality of mobile stations based on the plurality of first ACK/NAK signals and the plurality of second ACK/NAK signals;wherein the first set of orthogonal frequency tones are different from the second set of orthogonal frequency tones over two transmission instants. 10. The BS of claim 9, wherein the plurality of sequences are generated from a single sequence. 11. The BS of claim 9, wherein the plurality of sequences are a plurality of scrambling sequences. 12. The BS of claim 11, wherein the plurality of scrambling sequences are pseudo noise sequence codes. 13. A mobile station configured to transmit an acknowledgement (ACK)/negative acknowledgment (NAK) signal in a wireless communication system utilizing an orthogonal frequency division multiplexing (OFDM) scheme, the mobile station comprising: a receiver configured to receive a data packet from a base station (BS); anda transmitter configured to transmit: a first ACK/NAK signal for the data packet to the BS via a first set of orthogonal frequency tones; anda second ACK/NAK signal for the data packet to the BS via a second set of orthogonal frequency tones;wherein the first set of orthogonal frequency tones and the second set of orthogonal frequency tones are shared between a plurality of mobile stations for ACK/NAK signal transmission by using a plurality of sequences corresponding to the plurality of mobile stations;andwherein the first set of orthogonal frequency tones are different from the second set of orthogonal frequency tones over two transmission instants. 14. The mobile station of claim 13, wherein the plurality of sequences are generated from a single sequence. 15. The mobile station of claim 13, wherein the plurality of sequences are a plurality of scrambling sequences. 16. The mobile station of claim 15, wherein the plurality of scrambling sequences are pseudo noise sequence codes.
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이 특허에 인용된 특허 (5)
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Yoon, Young Cheul; Sun, Li-Hsiang; Kim, Sang Gook; Lee, Suk Woo; Wang, Shu, Method of transmitting and receiving acknowledgment signal in a wireless communication system.
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