Method and apparatus for performing hybrid automatic repeat request operation in a communication system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04W-024/00
H04L-001/18
H04W-036/08
H04B-007/26
H04L-001/00
출원번호
US-0743889
(2013-01-17)
등록번호
US-9603031
(2017-03-21)
우선권정보
KR-10-2012-0006358 (2012-01-19)
발명자
/ 주소
Lee, Ok-Seon
Chang, Young-Bin
Taori, Rakesh
Son, Yeong-Moon
출원인 / 주소
Samsung Electronics Co., Ltd.
대리인 / 주소
Jefferson IP Law, LLP
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
A Hybrid Automatic Repeat reQuest (HARQ) method and an apparatus in a communication system are provided. The method includes receiving, by a Subscriber Station (SS), first data from at least one first member Base Station (BS) among member BSs of a cooperative cell, when the cooperative cell is confi
A Hybrid Automatic Repeat reQuest (HARQ) method and an apparatus in a communication system are provided. The method includes receiving, by a Subscriber Station (SS), first data from at least one first member Base Station (BS) among member BSs of a cooperative cell, when the cooperative cell is configured with the member BSs to provide a communication service to the SS, generating a response signal indicating a reception result of the first data, and transmitting the response signal to at least one predefined second member BS from among the member BSs. The member BSs include a master BS for controlling communication of the member BSs and at least one slave BS for communicating with the SS under the control of the master BS.
대표청구항▼
1. A method for receiving data by a terminal in a communication system, the method comprising: receiving data from one of at least two base stations (BSs) providing a service to the terminal;generating a first response signal indicating a reception result of the data;transmitting, to a serving BS, t
1. A method for receiving data by a terminal in a communication system, the method comprising: receiving data from one of at least two base stations (BSs) providing a service to the terminal;generating a first response signal indicating a reception result of the data;transmitting, to a serving BS, the first response signal; andreceiving data retransmitted from a first BS determined based on the first response signal by the serving BS among the at least two BSs,wherein the retransmitted data is received using a resource for data retransmission allocated by the serving BS after the serving BS receives a second response signal from the first BS. 2. The method of claim 1, wherein the generating comprises: when the data is received successfully from one BS of the at least two BSs to the terminal, the first response signal is generated as one ACK signal, andwhen the data is not received successfully from all of the at least two BSs to the terminal, the first response signal is generated as one NACK signal. 3. The method of claim 1, wherein, when different data is received from the at least two BSs, the first response signal indicates a reception result of data received from each of the at least two BSs. 4. The method of claim 1, wherein the first BS is determined by further considering at least one of a generation ratio of an ACK signal, a cell load, and a channel state by the serving BS. 5. A method for transmitting data by a serving base station (BS) in a communication system, the method comprising: transmitting data to a terminal;receiving, from the terminal, a first response signal indicating a reception result of data transmitted from at least two BSs to provide a service to the terminal;determining a first BS among the at least two BSs based on the first response signal;transmitting a request for data retransmission to the first BS; andallocating, when a second response signal of the request is received from the first BS, a resource for the data retransmission. 6. The method of claim 5, wherein the determining comprises: receiving, from a second BS transmitting data corresponding to the reception result indicating a NACK signal, a control request for the data retransmission;determining the first BS based on at least one of a generation ratio of ACK signal, a cell load, and a channel state; andtransmitting, to the first BS, a response of the control request comprising allocation information of the resource for the data retransmission. 7. The method of claim 5, wherein, when the data is received successfully from one BS of the at least two BSs to the terminal, the first response signal is generated as one ACK signal, andwherein, when the data is not received successfully from all of the at least two BSs to the terminal, the first response signal is generated as one NACK signal. 8. The method of claim 5, wherein, when different data is transmitted from the serving BS and the at least two BSs to the terminal, the first response signal indicates a reception result of the data received from each of the at least two BSs. 9. A method for transmitting data by an adjacent base station (BS) included in at least two BSs to provide a service to a terminal in a communication system, the method comprising: transmitting data to the terminal;receiving, from the terminal, a first response signal indicating a reception result of the data;determining whether the adjacent BS performs data retransmission to the terminal based on the first response signal; andtransmitting, when a performance of the data retransmission is not determined, to a serving BS, a control request for the data retransmission,wherein data retransmitted from a first BS determined by the serving BS among the at least two BSs is received by the terminal using a resource for the data retransmission allocated by the serving BS. 10. The method of claim 9, wherein the first BS is determined by further considering at least one of a generation ratio of an ACK signal, a cell load, and a channel state by the serving BS. 11. The method of claim 9, wherein, when the data is received successfully from one BS of the at least two BSs to the terminal, the first response signal is generated as one ACK signal, andwherein, when the data is not received successfully from all of the at least two BSs to the terminal, the first response signal is generated as one NACK signal. 12. The method of claim 9, wherein, when different data is transmitted from each of the at least two BSs to the terminal, the first response signal indicates a reception result of the data received from each of the at least two BSs. 13. A terminal for receiving data in a communication system, the terminal comprising: a receiver configured to receive data from one of at least two base stations (BSs) providing a service to the terminal;a controller configured to generate a first response signal indicating a reception result of the data; anda transmitter configured to transmit the first response signal to a serving BS, and receive data retransmitted from a first BS determined based on the first response signal by the serving BS among the at least two BSs,wherein the retransmitted data is received using a resource for data retransmission allocated by the serving BS after the serving BS receives a second response signal from the first BS. 14. The terminal of claim 13, wherein, when the data is received successfully from one BS of the at least two BSs to the terminal, the first response signal is generated as one ACK signal, andwherein, when the data is not received successfully from all of the at least two BSs to the terminal, the first response signal is generated as one NACK signal. 15. The terminal of claim 13, wherein, when different data is received from the at least two BSs, the first response signal indicates a reception result of data received from each of at least two BSs. 16. The terminal of claim 13, wherein the first BS is determined by further considering at least one of a generation ratio of an ACK signal, a cell load, and a channel state. 17. A serving base station (BS) for transmitting data in a communication system, the serving BS comprising: a transceiver configured to transmit data to a terminal and receive, from the terminal, a first response signal indicating a reception result of data transmitted from at least two BSs to provide a service to the terminal; anda controller configured to: determine a first BS among the at least two BSs based on the first response signal,control the transceiver to transmit a request for data retransmission to the first BS, andallocate, when a second response signal of the request is received from the first BS, a resource for the data retransmission. 18. The serving BS of claim 17, wherein the transceiver is further configured to receive, from a second BS transmitting data corresponding to the reception result indicating a NACK signal, a control request for the data retransmission,wherein the controller is further configured to determine the first BS based on at least one of a generation ratio of ACK signal, a cell load, and a channel state, andwherein the transmitter is further configured to transmit, to the first BS, a response of the control request comprising allocation information of the resource for the data retransmission. 19. The serving BS of claim 17, wherein, when the data is received successfully from one BS of the at least two BSs to the terminal, the first response signal is generated as one ACK signal, andwherein, when the data is not received successfully from all of the at least two BSs to the terminal, the first response signal is generated as one NACK signal. 20. The serving BS of claim 17, wherein, when different data is transmitted from the serving BS and the at least two BSs to the terminal, the first response signal indicates a reception result of the data received from each of at least two BSs. 21. An adjacent base station (BS) included in at least two BSs to provide a service to a terminal in a communication system, the adjacent BS comprising: a transceiver configured to transmit data to the terminal and receive, from the terminal, a first response signal indicating a reception result of the data; anda controller configured to: determine whether the adjacent BS performs data retransmission to the terminal based on the first response signal, andcontrol the transceiver to transmit, when a performance of the data retransmission is not determined, a control request for the data retransmission to a serving BS,wherein data retransmitted from a first BS determined by the serving BS among the at least two BSs is received by the terminal using a resource for data retransmission allocated by the serving BS. 22. The adjacent BS of claim 21, wherein the first BS is determined by further considering at least one of a generation ratio of an ACK signal, a cell load, and a channel state by the serving BS. 23. The adjacent BS of claim 21, wherein, when the data is received successfully from one BS of the at least two BSs to the terminal, the first response signal is generated as one ACK signal, andwherein, when the data is not received successfully from all of the at least two BSs to the terminal, the first response signal is generated as one NACK signal. 24. The adjacent BS claim 21, wherein, when different data is transmitted from each of the at least two BSs to the terminal, the first response signal indicates a reception result of the data received from each of at least two BSs.
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이 특허에 인용된 특허 (1)
Laroia,Rajiv; Li,Junyi; Corson,M. Scott, Methods and apparatus for wireless network connectivity.
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