GB2494499B - Channel Quality Indicator (CQI) reporting during periods of discontinuous reception (DRX) - Google Patents

Channel Quality Indicator (CQI) reporting during periods of discontinuous reception (DRX)

Info

Publication number
GB2494499B
GB2494499B GB1211163.9A GB201211163A GB2494499B GB 2494499 B GB2494499 B GB 2494499B GB 201211163 A GB201211163 A GB 201211163A GB 2494499 B GB2494499 B GB 2494499B
Authority
GB
United Kingdom
Prior art keywords
cqi
drx
channel quality
quality indicator
discontinuous reception
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.)
Expired - Fee Related
Application number
GB1211163.9A
Other versions
GB2494499A (en
GB201211163D0 (en
Inventor
Petteri Kalle Kela
Henri Jani Llari Virta
Tommi Tapani Kangassuo
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.)
Renesas Electronics Corp
Original Assignee
Renesas Mobile Corp
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
Application filed by Renesas Mobile Corp filed Critical Renesas Mobile Corp
Priority to GB1211163.9A priority Critical patent/GB2494499B/en
Publication of GB201211163D0 publication Critical patent/GB201211163D0/en
Publication of GB2494499A publication Critical patent/GB2494499A/en
Application granted granted Critical
Publication of GB2494499B publication Critical patent/GB2494499B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A mobile device may not be able to measure a channel quality indicator (CQI) correctly during the active time period of a discontinuous reception (DRX) cycle, as it does not know in advance when the active time shall end. If it is determined that an instance of periodic CQI reporting is about to occur at the start of an active time of a DRX period, the mobile device will perform at least one of: utilizing predetermined CQI measurements obtained during the preceding DRX cycle for the instance of CQI reporting, and/or cancelling the present in­stance of CQI reporting. The start of the active time period may be defined as the first four subframes of a current on-duration time. The predetermined CQI measurements may be reported with an indication of validity.
GB1211163.9A 2012-06-22 2012-06-22 Channel Quality Indicator (CQI) reporting during periods of discontinuous reception (DRX) Expired - Fee Related GB2494499B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1211163.9A GB2494499B (en) 2012-06-22 2012-06-22 Channel Quality Indicator (CQI) reporting during periods of discontinuous reception (DRX)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1211163.9A GB2494499B (en) 2012-06-22 2012-06-22 Channel Quality Indicator (CQI) reporting during periods of discontinuous reception (DRX)

Publications (3)

Publication Number Publication Date
GB201211163D0 GB201211163D0 (en) 2012-08-08
GB2494499A GB2494499A (en) 2013-03-13
GB2494499B true GB2494499B (en) 2013-08-14

Family

ID=46704105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1211163.9A Expired - Fee Related GB2494499B (en) 2012-06-22 2012-06-22 Channel Quality Indicator (CQI) reporting during periods of discontinuous reception (DRX)

Country Status (1)

Country Link
GB (1) GB2494499B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9577730B2 (en) 2007-03-16 2017-02-21 Apple Inc. Channel quality index feedback reduction for broadband systems

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8867448B2 (en) 2012-05-15 2014-10-21 Apple Inc. Power-efficient adaptive channel state feedback in discontinuous reception scenarios
US8798590B2 (en) 2012-07-06 2014-08-05 Apple Inc. Mobile device which deletes duplicate preferred roaming list system records for improved performance
US10064210B2 (en) * 2015-02-12 2018-08-28 Qualcomm Incorporated Channel quality reporting for deterministic null scheduling
DE102015009779B4 (en) * 2015-07-27 2021-08-12 Apple Inc. Performance optimization for channel status reports in a wireless communication network

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2104256A1 (en) * 2008-03-21 2009-09-23 Research In Motion Limited Channel quality indicator transmission timing with discontinuous reception
WO2012000547A1 (en) * 2010-06-30 2012-01-05 Nokia Siemens Networks Oy Scheduling of user terminals in communication network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2104256A1 (en) * 2008-03-21 2009-09-23 Research In Motion Limited Channel quality indicator transmission timing with discontinuous reception
WO2012000547A1 (en) * 2010-06-30 2012-01-05 Nokia Siemens Networks Oy Scheduling of user terminals in communication network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9577730B2 (en) 2007-03-16 2017-02-21 Apple Inc. Channel quality index feedback reduction for broadband systems

Also Published As

Publication number Publication date
GB2494499A (en) 2013-03-13
GB201211163D0 (en) 2012-08-08

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Legal Events

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140102 AND 20140108

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140109 AND 20140115

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170706 AND 20170715

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170622