[특허]Method and system for adaptive hybrid automatic repeat request protocols based on network conditions

[미국특허] Method and system for adaptive hybrid automatic repeat request protocols based on network conditions 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04J-001/16
출원번호	US-0352952 (2009-01-13)
발명자 / 주소	Khanka, Bhagwan Shetty, Manoj Oroskar, Siddharth S. Singh, Jasinder P. Vargantwar, Sachin R.
출원인 / 주소	Sprint Spectrum L.P.
인용정보	피인용 횟수 : 12 인용 특허 : 10

초록 ▼

Methods and systems for adaptive hybrid automatic repeat request (H-ARQ) protocols are disclosed. The protocols preferably adapt to changing network conditions between a client node and an access node by omitting the transmission of certain messages when network conditions are determined to be favorable. In doing so, packets are processed faster, thus reducing communication latency as well as the memory requirements of the protocols. One scenario in which the protocols may operate is where the client node is a wireless communication device coupled to the access node via a wireless network. In such a scenario, the access node may, from time to time, measure a quality of the wireless air interface between the client node and the access node, and determine whether to transmit an acknowledgement message based on the outcome of the measurement as compared to a threshold value.

대표청구항 ▼

What is claimed is: 1. A method at an access node, wherein the access node is communicatively coupled to a client node by a network, wherein the access node maintains a threshold value, and wherein the threshold value represents a network condition, the method comprising:receiving a plurality of subpackets from the client node;transmitting a plurality of negative subpacket acknowledgment messages to the client node, wherein each negative subpacket acknowledgment message in the plurality of negative subpacket acknowledgment messages negatively acknowledges a subpacket of the received plurality of subpackets;after transmitting the plurality of negative subpacket acknowledgements, transmitting a positive subpacket acknowledgement message to the client node, wherein the positive subpacket acknowledgement message positively acknowledges a final subpacket of the received plurality of subpackets;assembling the received plurality of subpackets into a packet;comparing a value representing a measured network condition to the threshold value; anddetermining, based on the comparison, whether to pass the packet to a higher-layer protocol for further processing without transmitting a packet acknowledgement message to the client node, wherein the packet acknowledgement message acknowledges receipt of the packet, and wherein the higher-layer protocol is selected from the group consisting of a data-link layer and a network layer.

이 특허에 인용된 특허 (10) 인용/피인용 타임라인 분석

Ghosh Amitava ; Classon Brian K. ; Cudak Mark C. ; Jalloul Louay, Adaptive hybrid ARQ using turbo code structure.
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Ahmed, Mansoor; Rohani, Kamyar; Laird, Kevin M., Apparatus and method for dynamically selecting an ARQ method.
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Ha,Sang Hyuck; Kim,Min Goo; Heo,Jin Woo; Cho,Young Kwon; Bae,Sang Min, Apparatus and method for supporting automatic repeat request in a high-speed wireless packet data communication system.
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Koprivica,Milosh, Broadcast in a wireless communications system.
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Varma,Subir; Majidi Ahy,Reza; Hakim,Joseph; Wong,Wendy Chiu Fai, Dynamic wireless link adaptation.
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Khan,Farooq Ullah; Nanda,Sanjiv, Method and apparatus for asynchronous incremental redundancy reception in a communication system.
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Mohaban,Shai; Parnafes,Itzhak; Kahane,Opher, Method and apparatus providing media aggregation in a packet-switched network.
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Song, Yun-Jeong; Kim, Young-Wan; Kim, Nae-Soo; Lee, Ho-Jin, Method for detecting and correcting amplitude and phase imbalances between I and Q components in quadrature demodulator.
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Yoon, Young C.; Sun, Li-Hsiang; Lee, Suk Woo, Method of enabling a combined data rate control lock channel in a wireless communication system.
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Lee, Young Jo; Kim, Ki Jun; Kyung, Chan Ho, Method of packet data transfer with hybrid ARQ.
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이 특허를 인용한 특허 (12) 인용/피인용 타임라인 분석

Shah, Maulik K.; Oroskar, Siddharth S.; Singh, Jasinder P., Bundling acknowledgments based on signal quality.
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Vivanco, Daniel A., Determining an amount of hybrid ARQ transmissions based on a series of acknowledgments.
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Singh, Jasinder P.; Shah, Maulik K.; Oroskar, Siddharth S.; Goyal, Anoop K., Dynamic provision of hybrid-ARQ repetition factor based on subscription service class.
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Singh, Jasinder P.; Shah, Maulik K.; Oroskar, Siddharth S.; Goyal, Anoop K., Dynamic provision of hybrid-ARQ repetition factor based on subscription service class.
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Sung, Sanghoon; Kim, Yun Sung, Exchanging uplink and downlink carrier frequencies.
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Puliatti, Dante; Vargantwar, Sachin R.; Shah, Maulik K., Method and system for communication acknowledgement.
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Dinan, Esmail, Method and system for improving performance of broadcast/multicast transmissions.
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Dinan, Esmail, Method and system for improving performance of broadcast/multicast transmissions.
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Oroskar, Siddharth S.; Singh, Jasinder P., Preferentially assigning data slots subject to bundled acknowledgments to devices that support carrier aggregation.
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Robin, Jean-Luc, Processing load with normal or fast operation mode.
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Oroskar, Siddharth S.; Shah, Maulik K.; Singh, Jasinder P., Reducing transmission rates in data slots subject to bundled acknowledgments.
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Oroskar, Siddharth S.; Singh, Jasinder P., Scheduling traffic based on acknowledgment bundling.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and system for adaptive hybrid automatic repeat request protocols based on network conditions 원문보기