MY144439A - Multi-carrier operation in data transmission systems - Google Patents

Multi-carrier operation in data transmission systems

Info

Publication number
MY144439A
MY144439A MYPI20061825A MY144439A MY 144439 A MY144439 A MY 144439A MY PI20061825 A MYPI20061825 A MY PI20061825A MY 144439 A MY144439 A MY 144439A
Authority
MY
Malaysia
Prior art keywords
carrier
timing
channels
uplink
carriers
Prior art date
Application number
Inventor
Malladi Durga Prasad
Serge D Willenegger
Montojo Juan
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of MY144439A publication Critical patent/MY144439A/en

Links

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  • Mobile Radio Communication Systems (AREA)

Abstract

MULFI-CARRIER POINT-TO-MULTI-POINT CDMA SYSTEM IMPLEMENTATION REDUCES HARDWARE CHANGES IN LEGACY SINGLE-CARRIER SYSTEMS. THE NUMBER OF COMMON DOWNLINK CHANNELS, SUCH AS TIMING/SYNCHRONIZATION AND PAGING CHANNELS, IS REDUCED BY DESIGNATING AN ANCHOR CARRIER FOR TRANSMITTING THESE CHANNELS. PROCEDURES FOR ADDING CARRIERS AND CARRIER ACQUISITION ARE SIMPLIFIED THROUGH COMMON CARRIER TIMING, SIGNALING BY THE NETWORK TO THE USER EQUIPMENT (UE) OF TIMING OFFSETS AND SCRAMBLING CODE SELECTION, AND OTHER MEASURES. CHANNEL REUSE IS EMPLOYED TO MINIMIZE CHANGES IN ASYMMETRIC SYSTEMS WITH DIFFERENT NUMBERS OF UPLINK AND DOWNLINK CARRIERS. CHANNEL QUALITY INDICATOR (CQI) FIELD IS DIVIDED INTO MULTIPLE SUBFIELDS TO ENABLE TRANSMISSION OF MULTIPLE CQIs AND ACK/NACK INDICATORS ON ONE UPLINK CARRIER. JOINT AND SEPARATE SCHEDULING SCHEMES ARE SHOWN FOR CONCURRENT SCHEDULING OF A DATA STREAM TRANSMISSION TO A UE VIA MULTIPLE DOWNLINK CARRIERS.
MYPI20061825 2005-04-28 2006-04-20 Multi-carrier operation in data transmission systems MY144439A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67611005P 2005-04-28 2005-04-28
US67610905P 2005-04-28 2005-04-28

Publications (1)

Publication Number Publication Date
MY144439A true MY144439A (en) 2011-09-15

Family

ID=44025831

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20061825 MY144439A (en) 2005-04-28 2006-04-20 Multi-carrier operation in data transmission systems

Country Status (2)

Country Link
MY (1) MY144439A (en)
TW (1) TWI404366B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100493079B1 (en) * 2001-11-02 2005-06-02 삼성전자주식회사 Apparatus for reporting quality of downlink channel in wide band-code division multiple access communication system using high speed data packet access scheme and method thereof

Also Published As

Publication number Publication date
TW200711362A (en) 2007-03-16
TWI404366B (en) 2013-08-01

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