CA2406216A1 - A method and an apparatus for a quick retransmission of signals in a communication system - Google Patents

A method and an apparatus for a quick retransmission of signals in a communication system Download PDF

Info

Publication number
CA2406216A1
CA2406216A1 CA002406216A CA2406216A CA2406216A1 CA 2406216 A1 CA2406216 A1 CA 2406216A1 CA 002406216 A CA002406216 A CA 002406216A CA 2406216 A CA2406216 A CA 2406216A CA 2406216 A1 CA2406216 A1 CA 2406216A1
Authority
CA
Canada
Prior art keywords
signal
unit
time instant
quality metric
retransmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002406216A
Other languages
French (fr)
Other versions
CA2406216C (en
Inventor
Ahmad Jalali
Eduardo A. S. Esteves
Nagabhushana T. Sindhushayana
Peter J. Black
Rashid A. Attar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24191316&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2406216(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2406216A1 publication Critical patent/CA2406216A1/en
Application granted granted Critical
Publication of CA2406216C publication Critical patent/CA2406216C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1692—Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1848—Time-out mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1874—Buffer management
    • H04L1/1877—Buffer management for semi-reliable protocols, e.g. for less sensitive applications like streaming video
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/188—Time-out mechanisms

Abstract

A transmitting terminal, transmits signals in a form of packets to a receivi ng terminal, if the packet was intended for the receiving terminal, if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is forwarded for further processing. If the quality metric s fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. If delivery of the packet in accordance with the aforementioned description fails, retransmissi on in accordance with conventional sequence-number-based schemes, e.g., radio link protocol, is attempted.

Claims (68)

1. A method for retransmitting signals in a communication system, comprising the steps of:
determining a quality metric of a unit of received signal; and requesting retransmission of said unit of signal in accordance with said quality metric.
2. The method of claim 1 wherein the unit of signal is a packet.
3. The method of claim 1 wherein the quality metric is a cyclic redundancy check.
4. The method of claim 1 wherein the step of determining a quality metric comprises the steps of:
demodulating said unit of signal; and computing a quality metric of said unit of signal.
5. The method of claim 4 further comprising the step of determining if the unit of signal is to be demodulated.
6. The method of claim 5 wherein the step of determining is carried out in accordance with a preamble of said unit of signal.
7. The method of claim 5 wherein the step of determining is carried out in accordance with information carried on a control channel.
8. The method of claim 4 wherein the step of demodulating does not require information carried on a control channel.
9. The method of claim 4 wherein the step of demodulating requires information carried on a control channel.
10. The method of claim 1 wherein the step of requesting retransmission comprises the steps of:
comparing said determined quality metric of said unit of signal with a quality metric contained in said unit of signal; and generating a retransmission request based on said comparison.
11. The method of claim 10 wherein said retransmission request is a burst of energy.
12. The method of claim 11 wherein said burst of energy is a bit.
13. The method of claim 10 wherein said retransmission request contains no energy.
14. The method of claim 13 wherein said retransmission request is a bit.
15. The method of claim 10 further comprising the step of transmitting said retransmission request at a determinable time instant.
16. The method of claim 15 wherein said determinable time instant is fixedly delayed from an event time instant, said event time instant being selected from a group consisting of:
a time instant when said unit of signal is received;
a time instant when said determination if said unit of signal is to be demodulated is made;
a time instant when said unit of signal is demodulated; and a time instant when said quality metric is computed.
17. The method of claim 1 further comprising the step of requesting retransmission of said unit of signal in accordance with a sequence number of said unit of signal when said retransmission of said signal in accordance with said quality metric is declared a failure.
18. The method of claim 17 further comprising the steps of declaring said retransmission of said signal in accordance with said quality metric a failure when:
said unit of signal is not received within a predetermined number of retransmissions; or said unit of signal is not received within a predetermined period measured from a first transmission of said unit of signal; or said unit of signal is not received within a predetermined period measured from transmission of a retransmission request corresponding to said unit of signal.
19. A method for retransmitting signals in a communication system comprising the steps of:
determining a quality metric of a unit of received signal;
requesting retransmission of said unit of signal in accordance with said quality metric; and retransmitting said unit of signal in accordance with said retransmission request.
20. The method of claim 19 wherein the unit of signal is a packet.
21. The method of claim 19 wherein the quality metric is a cyclic redundancy check.
22. The method of claim 19 wherein the step of determining comprises the steps of:
demodulating a unit of signal; and computing a quality metric of said unit of signal.
23. The method of claim 22 further comprising the step of determining if the unit of signal is to be demodulated.
24. The method of claim 23 wherein the step of determining is carried out in accordance with a preamble of said unit of signal.
25. The method of claim 23 wherein the step of determining is carried out in accordance with information carried on a control channel.
26. The method of claim 22 wherein the step of demodulating does not require information carried on a control channel.
27. The method of claim 22 wherein the step of demodulating requires information carried on a control channel.
28. The method of claim 19 wherein the step of requesting retransmission comprises the steps of:
comparing said determined quality metric of said unit of signal with a quality metric contained in said unit of signal; and generating a retransmission request based on said comparison.
29. The method of claim 28 wherein said retransmission request is a burst of energy.
30. The method of claim 29 wherein said burst of energy is a bit.
31. The method of claim 28 wherein said retransmission request contains no energy.
32. The method of claim 31 wherein said retransmission request is a bit.
33. The method of claim 19 further comprising the step of transmitting said retransmission request at a determinable time instant.
34. The method of claim 33 wherein said determinable time instant is fixedly delayed from an event time instant, said event time instant being selected from a group consisting of:
a time instant when said unit of signal is received;
a time instant when said determination if said unit of signal is to be demodulated is made;
a time instant when said unit of signal is demodulated; and a time instant when said quality metric is computed.
35. The method of claim 19 further comprising the step of requesting retransmission of said unit of signal in accordance with a sequence number of said unit of signal when said retransmission of said signal in accordance with said quality metric is declared a failure.
36. The method of claim 35 further comprising the steps of declaring said retransmission of said signal in accordance with said quality metric a failure when:
said unit of signal is not received within a predetermined number of retransmissions; or said unit of signal is not received within a predetermined period measured from a first transmission of said unit of signal; or said unit of signal is not received within a predetermined period measured from transmission of a request signal corresponding to said unit of signal.
37. The method of claim 19 wherein the step of retransmitting comprises the steps of:
determining a unit of signal to be retransmitted in accordance to retransmission request signal; and scheduling said unit of signal for retransmission.
38. The method of claim 37 wherein the step of determining comprises the step of selecting a unit of signal which was transmitted at a time instant preceding a time instant of receiving said retransmission request by a sum of a round trip delay and a determinable delay.
39. The method of claim 38 wherein the determinable delay is contained in the retransmission request.
40. The method of claim 38 wherein the determinable delay is a difference between a first time instant of transmitting said retransmission request and a second time instant said second time instant being selected from a group consisting of:
a time instant when said unit of signal is received;
a time instant when said determination if said unit of signal is to be demodulated is made;
a time instant when said unit of signal is demodulated; and a time instant when said quality metric is computed.
41. The method of claim 37 wherein the step of scheduling comprises the step of determining a time instant at which to retransmit said unit of signal, said time instant being variably delayed from receipt of said request signal.
42. The method of claim 37 wherein the step of scheduling comprises the step of determining a time instant at which to retransmit said unit of signal, said time instant being fixedly delayed from receipt of said request signal.
43. A method for retransmitting signals in a communication system comprising the steps of:
receiving a retransmission request;
selecting a unit of signal which was transmitted at a time instant preceding a time instant of receiving said retransmission request by a sum of a round trip delay and a determinable delay; and scheduling said unit of signal for retransmission.
44. The method of claim 43 wherein the determinable delay is contained in the retransmission request.
45. The method of claim 43 wherein the determinable delay is a difference between a first time instant of transmitting said retransmission request and a second time instant said second time instant being selected from a group consisting of:
a time instant when said unit of signal is received;
a time instant when said determination if said unit of signal is to be demodulated is made;
a time instant when said unit of signal is demodulated; and a time instant when said quality metric is computed.
46. The method of claim 43 wherein the step of scheduling comprises the step of determining a time instant at which to retransmit said unit of signal, said time instant being variably delayed from receipt of said request signal.
47. The method of claim 43 wherein the step of scheduling comprises the step of determining a time instant at which to retransmit said unit of signal, said time instant being fixedly delayed from receipt of said request signal.
48. An apparatus configured to retransmit signals in a communication system, comprising:
a decoder configured to decode contents of a unit of received signal;
a first feedback signal generator configured to generate a first feedback signal; and a first processor configured to determine a quality metric of said unit of signal; and instruct said feedback signal generator to generate a feedback signal in accordance with said quality metric.
49. The apparatus of claim 48 wherein the unit of signal is a packet.
50. The apparatus of claim 48 wherein the quality metric is a cyclic redundancy cheek.
51. The apparatus of claim 48 wherein said first processor is further configured to prevent decoding of said unit of signal if an indication received on a control channel indicates that said unit of signal is not to be decoded.
52. The apparatus of claim 48 further comprising:
a preamble detector configured to detect and decode a preamble of said unit of signal; and wherein said first processor is further configured to prevent decoding of said unit of signal if said preamble indicates that said unit of signal is not to be decoded.
53. The apparatus of claim 48 wherein said decoder decodes contents of said unit of signal in accordance with information carried on a control channel.
54. The apparatus of claim 48 wherein said first feedback signal is a burst of energy.
55. The apparatus of claim 54 wherein said burst of energy is a bit.
56. The apparatus of claim 48 wherein said first feedback signal contains no energy.
57. The apparatus of claim 56 wherein said first feedback signal is a bit.
58. The apparatus of claim 48 wherein the first processor is further configured to transmit said first feedback signal at a determinable time instant.
59. The apparatus of claim 58 wherein said determinable time instant is fixedly delayed from an event time instant, said event time instant being selected from a group consisting of:
a time instant when said unit of signal is received;
a time instant when said determination if said unit of signal is to be demodulated is made;
a time instant when said unit of signal is demodulated; and a time instant when said quality metric is computed.
60. The apparatus of claim 48 further comprising:
a second feedback signal generator fox generating a second feedback signal; and a second processor configured to instruct said second feedback generator to generate a second feedback signal in accordance with a sequence number of said unit of signal when said retransmission of said signal in accordance with said quality metric is declared a failure.
61. The apparatus of claim 60 further comprising the steps of declaring said retransmission of said signal in accordance with said quality metric a failure when:
said unit of signal is not received within a predetermined number of retransmissions; or said unit of signal is not received within a predetermined period measured from a first transmission of said unit of signal; or said unit of signal is not received within a predetermined period measured from transmission of a request signal corresponding to said unit of signal.
62. An apparatus for retransmission of signals in a communication system, comprising:
a data queue for storing a plurality of units of signal to be transmitted;
a scheduler for scheduling a transmission of said units of signal to a destination receiving terminal;
a first detector for detecting a first feedback signal received from the destination receiving terminal; and a first control processor configured to receive said first feedback signal, select a unit of signal which was transmitted at a time instant preceding a time instant of receiving said first feedback signal by a sum of a pound trip delay and a determinable delay, and schedule said unit of signal for retransmission.
63. The apparatus of claim 62 wherein the determinable delay is contained in the first feedback signal.
64. The apparatus of claim 62 wherein the determinable delay is a difference between a first time instant of transmitting said retransmission request and a second time instant said second time instant being selected from a group consisting of:
a time instant when said unit of signal is received;
a time instant when said determination if said unit of signal is to be demodulated is made;
a time instant when said unit of signal is demodulated; and a time instant when said quality metric is computed
65. The apparatus of claim 62 wherein the first processor is further configured to determine a time instant at which to retransmit said unit of signal, said time instant being variably delayed from receipt of said first feedback signal.
66. The apparatus of claim 62 wherein the first processor is further configured to determine a time instant at which to retransmit said unit of signal, said time instant being fixedly delayed from receipt of said first feedback signal.
67. The apparatus of claim 62 further comprising:
a second detector for detecting a second feedback signal received from the destination receiving terminal; and a second control processor configured to receive said second feedback signal, select a unit of signal in accordance with said second feedback signal, and schedule said unit of signal for retransmission.
68. The apparatus of claim 67 wherein the second feedback signal contains sequence numbers of said unit of signal to be retransmitted.
CA2406216A 2000-04-14 2001-04-13 A method and an apparatus for a quick retransmission of signals in a communication system Expired - Lifetime CA2406216C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/549,017 2000-04-14
US09/549,017 US6694469B1 (en) 2000-04-14 2000-04-14 Method and an apparatus for a quick retransmission of signals in a communication system
PCT/US2001/012227 WO2001080477A1 (en) 2000-04-14 2001-04-13 A method and an apparatus for a quick retransmission of signals in a communication system

Publications (2)

Publication Number Publication Date
CA2406216A1 true CA2406216A1 (en) 2001-10-25
CA2406216C CA2406216C (en) 2012-02-07

Family

ID=24191316

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2406216A Expired - Lifetime CA2406216C (en) 2000-04-14 2001-04-13 A method and an apparatus for a quick retransmission of signals in a communication system

Country Status (19)

Country Link
US (4) US6694469B1 (en)
EP (4) EP2312786B1 (en)
JP (5) JP2003533078A (en)
KR (1) KR100762768B1 (en)
CN (1) CN1215672C (en)
AT (1) ATE425604T1 (en)
AU (2) AU2001253506B2 (en)
BR (1) BRPI0110002B1 (en)
CA (1) CA2406216C (en)
DE (1) DE60137919D1 (en)
ES (2) ES2753442T3 (en)
HK (1) HK1055039A1 (en)
IL (3) IL152215A0 (en)
MX (1) MXPA02010152A (en)
NO (1) NO20024910L (en)
RU (2) RU2295833C2 (en)
TW (1) TW507434B (en)
UA (1) UA74181C2 (en)
WO (1) WO2001080477A1 (en)

Families Citing this family (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6694469B1 (en) * 2000-04-14 2004-02-17 Qualcomm Incorporated Method and an apparatus for a quick retransmission of signals in a communication system
EP1161022A1 (en) * 2000-05-25 2001-12-05 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Selective repeat protocol with dynamic timers
US6839325B2 (en) * 2000-06-09 2005-01-04 Texas Instruments Incorporated Wireless communication system which uses ARQ packets to ACK a plurality of packets from an 802.15 superpacket
US6760313B1 (en) * 2000-06-19 2004-07-06 Qualcomm Incorporated Method and apparatus for adaptive rate selection in a communication system
WO2002017548A1 (en) * 2000-08-21 2002-02-28 Koninklijke Philips Electronics N.V. Method for the communication of information and apparatus employing the method
WO2002030067A1 (en) * 2000-10-05 2002-04-11 Mitsubishi Denki Kabushiki Kaisha Packet retransmission system, packet transmission device, packet reception device, packet retransmission method, packet transmission method and packet reception method
US7031281B1 (en) * 2000-11-27 2006-04-18 Nortel Networks Limited Method for reducing overhead in forward link traffic multiplexing
US7437654B2 (en) * 2000-11-29 2008-10-14 Lucent Technologies Inc. Sub-packet adaptation in a wireless communication system
US20030235206A1 (en) * 2001-02-15 2003-12-25 Tantivy Communications, Inc. Dual proxy approach to TCP performance improvements over a wireless interface
JP4591736B2 (en) * 2001-02-21 2010-12-01 ソニー株式会社 Information processing apparatus and method, recording medium, and program
US7756082B1 (en) 2001-09-07 2010-07-13 Atheros Communications, Inc. Wireless LAN using background scanning technique
US7379434B2 (en) * 2001-10-19 2008-05-27 Koninklijke Philips Electronics N.V. Radio communication system
KR100765121B1 (en) * 2001-11-24 2007-10-11 엘지전자 주식회사 Polling method of Protocol Data Unit of transmission buffer
US7369510B1 (en) * 2002-05-06 2008-05-06 Atheros Communications, Inc. Wireless LAN using RSSI and BER parameters for transmission rate adaptation
TWI303524B (en) 2002-05-10 2008-11-21 Interdigital Tech Corp System and method for prioritization of retransmission of protocol data units to assist radio-link-control retransmission
US7139274B2 (en) * 2002-08-23 2006-11-21 Qualcomm, Incorporated Method and system for a data transmission in a communication system
US7876837B2 (en) * 2002-09-30 2011-01-25 Motorola Mobility, Inc. Method for reducing access noise in a spread spectrum communication system
US8213390B2 (en) 2002-10-24 2012-07-03 Qualcomm Incorporated Reverse link automatic repeat request
US7734698B2 (en) 2002-11-26 2010-06-08 Sony Ericsson Mobile Communications Ab Methods, systems and computer program products for non-intrusive subsequent provisioning of a mobile terminal
US7564818B2 (en) 2002-11-26 2009-07-21 Qualcomm Incorporated Reverse link automatic repeat request
GB2396088B (en) * 2002-12-06 2005-06-29 Qualcomm A data transfer procedure for transferring data of a data sequence between a transmitting entity and a receiving entity
US8179833B2 (en) * 2002-12-06 2012-05-15 Qualcomm Incorporated Hybrid TDM/OFDM/CDM reverse link transmission
US6996763B2 (en) * 2003-01-10 2006-02-07 Qualcomm Incorporated Operation of a forward link acknowledgement channel for the reverse link data
US7694190B2 (en) * 2003-01-16 2010-04-06 Nxp B.V. Preventing distribution of modified or corrupted files
US7299402B2 (en) * 2003-02-14 2007-11-20 Telefonaktiebolaget Lm Ericsson (Publ) Power control for reverse packet data channel in CDMA systems
US8391249B2 (en) * 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
US7155236B2 (en) 2003-02-18 2006-12-26 Qualcomm Incorporated Scheduled and autonomous transmission and acknowledgement
US20040160922A1 (en) 2003-02-18 2004-08-19 Sanjiv Nanda Method and apparatus for controlling data rate of a reverse link in a communication system
US7660282B2 (en) * 2003-02-18 2010-02-09 Qualcomm Incorporated Congestion control in a wireless data network
US7215930B2 (en) * 2003-03-06 2007-05-08 Qualcomm, Incorporated Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication
US8254358B2 (en) 2003-03-06 2012-08-28 Ericsson Ab Communicating a broadcast message to change data rates of mobile stations
US8705588B2 (en) 2003-03-06 2014-04-22 Qualcomm Incorporated Systems and methods for using code space in spread-spectrum communications
US7746816B2 (en) * 2003-03-13 2010-06-29 Qualcomm Incorporated Method and system for a power control in a communication system
KR20040083617A (en) * 2003-03-24 2004-10-06 삼성전자주식회사 SYSTEM AND METHOD FOR DATA TRYRANSMISSION OF SOFT HANDOVER UEs OF ENHANCED UPLINK DEDICATED TRANSPORT CHANNEL IN WCDMA COMMUNICATION SYSTEM
US8477592B2 (en) 2003-05-14 2013-07-02 Qualcomm Incorporated Interference and noise estimation in an OFDM system
US7466666B2 (en) * 2003-06-18 2008-12-16 Telefonaktiebolaget Lm Ericsson (Publ) Forward ACK/NACK channel for CDMA system
US8489949B2 (en) * 2003-08-05 2013-07-16 Qualcomm Incorporated Combining grant, acknowledgement, and rate control commands
US7616663B1 (en) * 2004-03-04 2009-11-10 Verizon Corporate Services Group, Inc. Method and apparatus for information dissemination
US20050286526A1 (en) * 2004-06-25 2005-12-29 Sood Sanjeev H Optimized algorithm for stream re-assembly
US7461173B2 (en) * 2004-06-30 2008-12-02 Intel Corporation Distributing timers across processors
US20060004933A1 (en) * 2004-06-30 2006-01-05 Sujoy Sen Network interface controller signaling of connection event
US20060031474A1 (en) * 2004-07-19 2006-02-09 Linden Cornett Maintaining reachability measures
JP4440037B2 (en) * 2004-08-11 2010-03-24 株式会社東芝 Communication apparatus and communication method
US20060218459A1 (en) * 2004-08-13 2006-09-28 David Hedberg Coding systems and methods
US7698623B2 (en) * 2004-08-13 2010-04-13 David Hedberg Systems and methods for decreasing latency in a digital transmission system
US7529184B2 (en) * 2004-12-01 2009-05-05 Research In Motion Limited Flow control buffering
US8755407B2 (en) 2005-02-18 2014-06-17 Qualcomm Incorporated Radio link protocols for enhancing efficiency of multi-link communication systems
GB2425693B (en) 2005-04-25 2007-05-30 Siemens Ag Method of re-transmitting an original frame
KR101073915B1 (en) 2005-05-03 2011-10-17 엘지전자 주식회사 Method for Transmitting Control Information in a Mobile Communication System having Automatic Repeat Request
WO2007013839A1 (en) * 2005-07-25 2007-02-01 Telefonaktiebolaget Lm Ericsson (Publ) Means and methods for improving the handover characteristics of radio access networks
US8265768B2 (en) * 2005-08-30 2012-09-11 Boston Scientific Neuromodulation Corporation Telemetry protocol for ultra low error rates useable in implantable medical devices
CN1801687B (en) * 2005-09-08 2013-08-07 华为技术有限公司 Data frame retransmission method and system based on non response mechanism
JP4575265B2 (en) * 2005-09-29 2010-11-04 株式会社東芝 Wireless communication device
US8102878B2 (en) 2005-09-29 2012-01-24 Qualcomm Incorporated Video packet shaping for video telephony
US8406309B2 (en) 2005-10-21 2013-03-26 Qualcomm Incorporated Video rate adaptation to reverse link conditions
US8842555B2 (en) * 2005-10-21 2014-09-23 Qualcomm Incorporated Methods and systems for adaptive encoding of real-time information in packet-switched wireless communication systems
US8514711B2 (en) 2005-10-21 2013-08-20 Qualcomm Incorporated Reverse link lower layer assisted video error control
US8548048B2 (en) * 2005-10-27 2013-10-01 Qualcomm Incorporated Video source rate control for video telephony
US7508791B2 (en) * 2005-10-31 2009-03-24 Kyocera Corporation Wireless communication coding and transmission systems and methods
KR100748514B1 (en) * 2006-01-13 2007-08-14 엘지전자 주식회사 Method and terminal for processing media data for sip based session service
US8689025B2 (en) * 2006-02-21 2014-04-01 Qualcomm Incorporated Reduced terminal power consumption via use of active hold state
EP1989809B1 (en) * 2006-02-21 2011-01-12 QUALCOMM Incorporated Feedback channel design for multiple-input multiple-output communication systems
US8077595B2 (en) 2006-02-21 2011-12-13 Qualcomm Incorporated Flexible time-frequency multiplexing structure for wireless communication
US9461736B2 (en) * 2006-02-21 2016-10-04 Qualcomm Incorporated Method and apparatus for sub-slot packets in wireless communication
US20080080370A1 (en) * 2006-09-28 2008-04-03 Research In Motion Limited Method and apparatus for buffering packets in a network
KR101370478B1 (en) 2007-01-10 2014-03-06 퀄컴 인코포레이티드 Content-and link-dependent coding adaptation for multimedia telephony
US8625652B2 (en) 2007-01-11 2014-01-07 Qualcomm Incorporated Collision-free group hopping in a wireless communication system
US8181079B2 (en) * 2007-09-21 2012-05-15 Qualcomm Incorporated Data transmission with HARQ and interference mitigation
EP2066063A1 (en) * 2007-11-30 2009-06-03 Nokia Siemens Networks Oy Method and system for data transmission in a data network
US8797850B2 (en) 2008-01-10 2014-08-05 Qualcomm Incorporated System and method to adapt to network congestion
JPWO2009104574A1 (en) * 2008-02-21 2011-06-23 シャープ株式会社 Transmitting apparatus, receiving apparatus, communication system, and communication method
US8121128B2 (en) * 2008-02-26 2012-02-21 Qualcomm Incorporated Method and apparatus for link control in a wireless communication system
US8665804B2 (en) 2008-03-19 2014-03-04 Qualcomm Incorporated Filtering semi-persistent scheduling false alarms
US8619775B2 (en) * 2008-07-21 2013-12-31 Ltn Global Communications, Inc. Scalable flow transport and delivery network and associated methods and systems
JP2010056964A (en) * 2008-08-28 2010-03-11 Canon Inc Receiving apparatus and control method thereof, program, and recording medium
US8437267B2 (en) * 2008-12-22 2013-05-07 Ltn Global Communications, Inc. System and method for recovery of packets in overlay networks
US8423854B2 (en) * 2009-03-02 2013-04-16 Clearwire Ip Holdings Llc Communication retransmission based on transmission performance relative to expected quality of service
US7995487B2 (en) * 2009-03-03 2011-08-09 Robert Bosch Gmbh Intelligent router for wireless sensor network
CN101834829A (en) * 2009-03-13 2010-09-15 深圳市均方根科技有限公司 Dynamic networking method and communication component
US9106569B2 (en) 2009-03-29 2015-08-11 Ltn Global Communications, Inc. System and method that routes flows via multicast flow transport for groups
US8599851B2 (en) 2009-04-03 2013-12-03 Ltn Global Communications, Inc. System and method that routes flows via multicast flow transport for groups
RU2517340C2 (en) * 2009-05-04 2014-05-27 Эппл Инк Wireless communication method and device
JP5182220B2 (en) * 2009-05-21 2013-04-17 富士通株式会社 Base station, radio communication system, base station control method
CN102377552A (en) * 2010-08-23 2012-03-14 中兴通讯股份有限公司 Data retransmission method and system
EP2680512B1 (en) 2012-06-25 2019-07-24 Alcatel Lucent Network entity of a communication network
WO2014132351A1 (en) * 2013-02-27 2014-09-04 三菱電機株式会社 Relay device, relay method, and relay program
US20150189543A1 (en) * 2013-12-26 2015-07-02 International Datacasting Corporation System and Methods for Providing an Enhanced Content Proxy in a Wireless Network
KR102263369B1 (en) * 2015-01-13 2021-06-11 한국전자통신연구원 System and method for multi-computer control
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
US11290172B2 (en) 2018-11-27 2022-03-29 XCOM Labs, Inc. Non-coherent cooperative multiple-input multiple-output communications
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
JP7253940B2 (en) * 2019-03-13 2023-04-07 日本放送協会 Receiving device, server system and receiving program
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
JP7318460B2 (en) 2019-09-30 2023-08-01 横河電機株式会社 Systems, methods and programs
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
JP2022178977A (en) * 2021-05-21 2022-12-02 Smc株式会社 Base wireless device and wireless communication method
US11750324B2 (en) 2021-11-30 2023-09-05 Analog Devices International Unlimited Company Methods for adaptive error avoidance to increase re-transmission reliability in time-slotted communication links

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579163A (en) * 1980-06-19 1982-01-18 Toshiba Corp Data transmitter and data receiver
BR8205954A (en) * 1981-10-14 1983-09-13 Unilever Nv DNA SEQUENCE, RECOMBINANT PLASMIDIUM, BACTERIAL CULTURE AND MICROORGANISMS
JPH0618358B2 (en) * 1985-04-09 1994-03-09 沖電気工業株式会社 Error control coding system
JPS6251326A (en) * 1985-08-30 1987-03-06 Oki Electric Ind Co Ltd Retransmission control system in data communication
JPS6292642A (en) * 1985-10-18 1987-04-28 Fujitsu Ltd Error response control system for transfer data
SU1691965A1 (en) * 1989-07-13 1991-11-15 Сумской филиал Харьковского политехнического института им.В.И.Ленина Information transmission device
JPH03117242A (en) * 1989-09-29 1991-05-20 Nec Ibaraki Ltd Retrial method for data transmission
US5101501A (en) 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
ZA947317B (en) * 1993-09-24 1995-05-10 Qualcomm Inc Multirate serial viterbi decoder for code division multiple access system applications
BR9506289A (en) * 1994-07-28 1997-08-12 Philips Electronics Nv Process and system for transmitting and receiving data messages, process and communication system and primary and secondary station for use in the communication system
US5719883A (en) * 1994-09-21 1998-02-17 Lucent Technologies Inc. Adaptive ARQ/FEC technique for multitone transmission
US5706313A (en) 1994-11-01 1998-01-06 Motorola, Inc. Soft decision digital communication method and apparatus
JP2861851B2 (en) * 1995-02-07 1999-02-24 日本電信電話株式会社 Data communication retransmission method
US5784362A (en) 1995-04-17 1998-07-21 Telefonaktiebolaget Lm Ericsson Temporary frame identification for ARQ in a reservation-slotted-ALOHA type of protocol
US5689502A (en) * 1995-06-05 1997-11-18 Omnipoint Corporation Efficient frequency division duplex communication system with interleaved format and timing adjustment control
US5677918A (en) 1995-07-28 1997-10-14 Motorola, Inc. Method and device for efficient error correction in a packet-switched communication system
JPH0951559A (en) * 1995-08-08 1997-02-18 Matsushita Electric Ind Co Ltd Wavelength-division multiplex optical communication network
JP3462314B2 (en) * 1995-08-11 2003-11-05 Ｋｄｄｉ株式会社 Packet communication device
US5701441A (en) * 1995-08-18 1997-12-23 Xilinx, Inc. Computer-implemented method of optimizing a design in a time multiplexed programmable logic device
US5818832A (en) * 1995-10-10 1998-10-06 Sicom, Inc. Rapid synchronization for communication systems
ATE221710T1 (en) 1995-10-23 2002-08-15 Nokia Corp METHOD FOR PACKET DATA TRANSMISSION USING HYBRID FEC/ARQ TYPE II METHOD
JPH09130447A (en) * 1995-10-31 1997-05-16 Nec Corp Radio data transmitter
US5684791A (en) * 1995-11-07 1997-11-04 Nec Usa, Inc. Data link control protocols for wireless ATM access channels
US5815667A (en) * 1995-11-28 1998-09-29 Ncr Corporation Circuits and methods for intelligent acknowledgement based flow control in a processing system network
US5991279A (en) * 1995-12-07 1999-11-23 Vistar Telecommunications Inc. Wireless packet data distributed communications system
SE9600578L (en) * 1996-02-16 1997-03-10 Ericsson Telefon Ab L M Method and apparatus for channel assignment in a radio communication system
JP3208653B2 (en) * 1996-04-12 2001-09-17 三菱電機株式会社 Automatic retransmission control method
FI112419B (en) * 1996-06-06 2003-11-28 Nokia Corp Procedure for the confidentiality of data transmission
JPH1084335A (en) * 1996-09-10 1998-03-31 Canon Inc Radio communication system
JPH10210530A (en) * 1997-01-17 1998-08-07 Mitsubishi Electric Corp Radio packet access method
US6335922B1 (en) * 1997-02-11 2002-01-01 Qualcomm Incorporated Method and apparatus for forward link rate scheduling
US5963557A (en) * 1997-04-11 1999-10-05 Eng; John W. High capacity reservation multiple access network with multiple shared unidirectional paths
JPH1146217A (en) * 1997-07-28 1999-02-16 Nippon Telegr & Teleph Corp <Ntt> Radio packet re-transmission method
FI106175B (en) * 1997-08-18 2000-11-30 Nokia Mobile Phones Ltd Data transmission in a mobile telephone network
JPH1198127A (en) * 1997-09-19 1999-04-09 Nippon Telegr & Teleph Corp <Ntt> Method for communicating image data
JPH11112601A (en) 1997-10-07 1999-04-23 Oki Electric Ind Co Ltd Control method for transmission quality
US6327254B1 (en) * 1997-10-14 2001-12-04 Lucent Technologies Inc. Method for bandwidth sharing in a multiple access system for communications networks
US6574211B2 (en) * 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
US6377562B1 (en) * 1997-11-18 2002-04-23 Bell Atlantic Network Services, Inc. Wireless asymmetric local loop (WASL) communication
JPH11177536A (en) * 1997-12-08 1999-07-02 Mitsubishi Electric Corp Error control system for radio data link layer
JP3190869B2 (en) * 1997-12-15 2001-07-23 甲府日本電気株式会社 Data transmission method
ES2184430T3 (en) * 1998-04-17 2003-04-01 Matsushita Electric Ind Co Ltd RADIO COMMUNICATION DEVICE AND PROCEDURE THAT ALLOWS THE ADJUSTMENT OF THE TRANSMISSION SPEED.
JPH11313047A (en) * 1998-04-30 1999-11-09 Toshiba Corp Data communication equipment and mobile terminal equipment
JP3252796B2 (en) * 1998-06-05 2002-02-04 日本電気株式会社 System and method for guaranteeing notification data by UDP in network management system
AU5663199A (en) * 1998-08-07 2000-02-28 Telefonaktiebolaget Lm Ericsson (Publ) Group addressing in a packet communication system
US6128763A (en) 1998-09-01 2000-10-03 Motorola, Inc. Dynamically changing forward error correction and automatic request for repetition
US20010056560A1 (en) * 1998-10-08 2001-12-27 Farooq Khan Method and system for measurement based automatic retransmission request in a radiocommunication system
US6694469B1 (en) * 2000-04-14 2004-02-17 Qualcomm Incorporated Method and an apparatus for a quick retransmission of signals in a communication system

Also Published As

Publication number Publication date
US20040098657A1 (en) 2004-05-20
JP2003533078A (en) 2003-11-05
CN1215672C (en) 2005-08-17
CN1429441A (en) 2003-07-09
UA74181C2 (en) 2005-11-15
EP2066061A3 (en) 2013-07-17
JP2014222901A (en) 2014-11-27
US7127654B2 (en) 2006-10-24
EP2312786A2 (en) 2011-04-20
ES2321807T3 (en) 2009-06-12
RU2462824C2 (en) 2012-09-27
EP1273123A1 (en) 2003-01-08
KR100762768B1 (en) 2007-10-02
EP2312786B1 (en) 2019-08-21
IL152215A0 (en) 2003-05-29
ES2753442T3 (en) 2020-04-08
JP6452968B2 (en) 2019-01-16
US6694469B1 (en) 2004-02-17
JP2011205694A (en) 2011-10-13
BR0110002A (en) 2006-02-07
EP2854321A1 (en) 2015-04-01
US20070168825A1 (en) 2007-07-19
HK1055039A1 (en) 2003-12-19
RU2006141340A (en) 2008-05-27
AU5350601A (en) 2001-10-30
AU2001253506B2 (en) 2005-11-24
KR20020087982A (en) 2002-11-23
MXPA02010152A (en) 2003-04-25
JP6214996B2 (en) 2017-10-18
US7613978B2 (en) 2009-11-03
JP2014033458A (en) 2014-02-20
JP5931432B2 (en) 2016-06-08
NO20024910D0 (en) 2002-10-11
WO2001080477A1 (en) 2001-10-25
EP2066061A2 (en) 2009-06-03
JP2012080582A (en) 2012-04-19
JP5583639B2 (en) 2014-09-03
RU2002130511A (en) 2004-03-10
EP1273123B1 (en) 2009-03-11
ATE425604T1 (en) 2009-03-15
IL152215A (en) 2010-05-31
NO20024910L (en) 2002-12-05
CA2406216C (en) 2012-02-07
DE60137919D1 (en) 2009-04-23
TW507434B (en) 2002-10-21
BRPI0110002B1 (en) 2015-10-13
IL204473A0 (en) 2011-08-01
EP2312786A3 (en) 2013-03-27
US20100046497A1 (en) 2010-02-25
RU2295833C2 (en) 2007-03-20

Similar Documents

Publication Publication Date Title
CA2406216A1 (en) A method and an apparatus for a quick retransmission of signals in a communication system
US8077637B2 (en) Mobile communication apparatus
AU2001253506A1 (en) A method and an apparatus for a quick retransmission of signals in a communication system
US20030235162A1 (en) Method and apparatus for reducing transmission errors in a third generation cellular system
JP2011205694A5 (en)
EP0418866B1 (en) Signal transmission system capable of performing re-transmission control in units of slots
US7388852B2 (en) Physical layer assisted retransmission
US11411680B2 (en) OMAMRC transmission method and system with reduced signalling
US5905945A (en) Method and apparatus for improving the reliability of communicating a message from a portable subscriber unit to a base receiver in a two-way radio messaging system
CA2674001C (en) Apparatus and method for assigning resources in a wireless communication system
JP2007536868A (en) Method, system and station for communicating data packets using ARQ
US9215042B2 (en) Apparatus and method for transmitting and receiving packet data in a wireless communication system using hybrid automatic repeat request
CA2351030A1 (en) Method for improving data transmission between a transmitting unit and a receiving unit
JP2001007785A (en) Communications equipment and communication method
JPH09130415A (en) Device and method for data transmission

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20210413