CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology Section 8: CDMA2000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-13 CDMA 120 Section 8-13 cdma university Available Forward Link Code Channels Channel Type Maximum Number Forward Pilot Channel 1 Transmit Diversity Pilot Channel 1 Auxiliary Pilot Channel Not Specified Auxiliary Transmit Diversity Pilot Channel Not Specified Sync Channel 1 Paging Channel 7 Broadcast Control Channel 8 Quick Paging Channel 3 Common Power Control Channel 4 Common Assignment Channel 7 Forward Common Control Channel 7 Forward Dedicated Control Channel 1* Forward Fundamental Channel 1* Forward Supplemental Code Channel (RC 1 and 2 only) 7* Forward Supplmental Channel (RC 3 through 9 only) 2* *per Forward Traffic Channel Available Forward Link Code Channels This table lists the number of channels available for each type of Physical Channel. Note that there are only one each of the Pilot, Transmit Diversity Pilot, and Sync Channels. CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology Section 8: CDMA2000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-14 CDMA 120 Section 8-14 cdma university Radio Configurations (RC) z A set of Forward Traffic and Reverse Traffic Channel transmission formats that are characterized by Physical Layer parameters such as transmission rates, modulation characteristics, and spreading rate z IS-2000 defines Radio Configurations: – RC1 and RC2 correspond to IS-95 A/B Rate Set 1 and Rate Set 2, respectively – RC3 through RC9 on the Forward link – RC3 through RC6 on the Reverse link Radio Configurations (RC) Radio Configurations A Radio Configuration (RC) defines the following characteristics of a Forward or Reverse Traffic Channel: z Rate Set z Spreading Rate z Channel Coding (Turbo or convolutional) z Channel Coding Rate z Modulation (QPSK or BPSK) z Transmit Diversity Allowed CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology Section 8: CDMA2000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-15 CDMA 120 Section 8-15 cdma university Radio Configuration Spreading Rate MaxDataRate* (kbps) Effective FEC Code Rate TX Diversity FEC Encoding Modulation 1 1 9.6 1/2 No Conv BPSK 2 1 14.4 3/4 No Conv BPSK 3 1 153.6 1/4 Yes C onv and Turbo QPSK 4 1 307.2 1/2 Yes C onv and Turbo QPSK 5 1 230.4 3/8 Yes C onv and Turbo QPSK 6 3 307.2 1/6 Yes C onv and Turbo QPSK 7 3 614.4 1/3 Yes C onv and Turbo QPSK 8 3 460.8 1/4 or 1/3 Yes C onv and Turbo QPSK 9 3 1036.8 1/2or 1/3 Yes C onv and Turbo QPSK * Maximum data rate for a single Supplemental Channel ** Radio Configuration 1 and 2 correspond to TIA/EIA-95B RS 1 and RS 2 Forward Link Radio Configurations Forward Link Radio Configurations Radio Configurations 1 and 2 correspond to TIA/EIA-95B Rate Set 1 and Rate Set 2, respectively. These are backward-compatible Radio Configurations. Radio Configurations 3, 4, and 5 use Spreading Rate 1, while Radio Configurations 6, 7, 8, and 9 use Spreading Rate 3. Turbo coding or convolutional coding may be used. Max Data Rate refers to the maximum data rate for a single Supplemental Channel. Since up to two Supplemental Channels may be used for a single Traffic Channel, the total maximum data rate is twice the value shown in the table. CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology Section 8: CDMA2000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-16 CDMA 120 Section 8-16 cdma university Radio Configuration Spreading Rate Max Data Rate* (kbps) Effective FEC Code Rate FEC Encoding Modulation 1 1 9.6 1/3 Conv 64-ary ortho 2 1 14.4 1/2 Conv 64-ary ortho 3 1 153.6 1/4 Conv or Turbo QPSK (307.2) 1/2 4 1 230.4 3/8 Conv or Turbo QPSK 5 3 153.6 1/4 Conv or Turbo QPSK (614.4) 1/3 6 3 460.8 1/4 Conv or Turbo QPSK (1036.8) 1/2 Reverse Link Radio Configurations * Maximum data rate for a single Supplemental Channel ** Radio Configuration 1 and 2 correspond to TIA/EIA-95B RS 1 and RS 2 Reverse Link Radio Configurations Radio Configurations 1 and 2 correspond to TIA/EIA-95B Rate Set 1 and Rate Set 2, respectively. These are backward-compatible Radio Configurations. Radio Configurations 3 and 4 use Spreading Rate 1, while Radio Configurations 5 and 6 use Spreading Rate 3. Turbo or convolutional coding may be used. CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology Section 8: CDMA2000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-17 CDMA 120 Section 8-17 cdma university M S Voice, Signaling, PC Voice, PC Signaling B S Data, Signaling, PC High Speed Data (optional) Signaling, PC Data, Signaling, PC High Speed Data (optional) Data, PC Voice, Data, Signaling,PC High Speed Data (optional) Voice, Signaling, PC Signaling High Speed Data (optional) High Speed Data (optional) Data, (Signaling) FCH Only Channel Profile DCCH Only Channel Profile FCH + DCCH Channel Profile Fundamental Channel (FCH) Dedicated Control Channel (DCCH) Supplemental Channel (SCH) Single Voice Service Single Data Service Simultaneous Voice + Data Service M S B S M S B S M S B S M S B S M S B S M S B S M S B S Signaling Only V1 V2 P1 P2 P3 VP1 CH VP2 None currently defined None currently defined Not Efficient Not Efficient Dedicated Channels and Standard Services Dedicated Channels and Standard Services Although not specified in the CDMA2000 standard, the following services have become de facto standards in the industry: z V1–VoiceandsignalingonFCH z P1–DataandsignalingonFCH,optionalDataonSCH z VP1–Voice,Data,andsignalingonFCH,optionalDataonSCH z P2–DataonDCCH,optionalDataonSCH z V2–VoiceonFCH,signalingonDCCH z P3–DataonFCH,signalingonDCCH,optionalDataonSCH z VP2 – Voice and signaling on FCH, Data on DCCH, optional Data on SCH z CH – Control Hold mode. In the Control Hold mode, only the Reserve Pilot is transmitted, and it may be operating in gated mode to conserve power. Note: Power control (PC) is always carried on FCH if it is present; otherwise it is carried on DCCH. In any of the services that support data, high speed data may optionally be carried on SCH, to achieve data rates up to 2 Mbps. CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology Section 8: CDMA2000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-18 CDMA 120 Section 8-18 cdma university RL Closed Loop Power Control z The mobile adjusts its output power based on the valid power control bit received on the F-FCH or F-DCCH. z 0.25 dB, 0.5 dB, and 1.0 dB power control step sizes are defined z CDMA2000 power control – Is a constant 800 bps – Is independent of data rate except when gating modes are used Reverse Link Closed Loop Power Control Reverse Link Power Control was not significantly changed for CDMA2000. The power control step size is now configurable by the Base Station (it was fixed at 1 dB in TIA/EIA-95 A/B), but the mobile is only required to support the 0.5 dB step size if it also supports the R-SCH. The reason for the configurable power control step sizes is the higher data rates on the SCH. For Radio Configurations 1 and 2, the Base Station uses the same technique as in TIA/EIA-95 to measure the mobile’s transmit power. For Radio Configurations 3 and above, the mobile transmits a Pilot Channel, so the Base Station can use this to estimate the E b /N t of the mobile. [...]... Incorporated 8-23 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview Walsh Limitations cdma university z z z CDMA 120 Section 8-24 1x can use Walsh up to length 128 3x can use Walsh up to length 256 CDMA2 000 may be Walsh limited due to increased Forward link capacity – Variable Walsh spreading for high data rates – Low power discontinuous control and overhead... update rate z Variable frame lengths – 5 ms, 20 ms, 40 ms, and 80 ms frames used for signaling and user information © 2002 QUALCOMM Incorporated 8-28 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview New Common Channels cdma university z z z CDMA 120 Section 8- 29 Common channel operation can be done by existing Paging and Access Channels Three new channels... 3 through 9, both Walsh and QOFs are used due to the need for more Code Channel space The Pilot, Sync, and Paging Channels have definite Walsh code assignments, while Traffic Channels do not © 2002 QUALCOMM Incorporated 8-26 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview CDMA 120 Turbo Encoder cdma university Section 8-27 Rate 1/2, 1/3, and 1/4 codes... increased flexibility, and longer mobile battery consumption © 2002 QUALCOMM Incorporated 8-30 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview cdma university z New Common Channels Structure CDMA 120 Section 8-31 F-QPCH used by Base Station when it needs to contact mobile in slotted mode The F-QPCH has two functions: – Paging – Configuration change... Channel (R-CCCH) and Common Power Control Subchannel © 2002 QUALCOMM Incorporated 8-33 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview New Forward Link Dedicated Channels cdma university CDMA 120 Section 8-34 FORWARD CDMA CHANNEL for Spreading Rates 1 and 3 (SR1 and SR3) Common Common Assignment Power Control Channels Channels Forward Pilot Channel... punctured and repeated to achieve the (Nturbo+6)/R output symbols The Turbo interleaver is used to block interleave the data, CRC, and reserved bits input to the second constituent encoder © 2002 QUALCOMM Incorporated 8-27 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview Forward Link Physical Layer Key Characteristics cdma university CDMA 120 Section... the time spent monitoring the Paging Channel © 2002 QUALCOMM Incorporated 8-31 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview Backward-Compatible Forward Link Code Channels cdma university CDMA 120 Section 8-32 FORWARD CDMA CHANNEL for Spreading Rates 1 and 3 (SR1 and SR3) Common Common Assignment Power Control Channels Channels Forward Pilot Channel... variable-length Walsh codes and QOFs users, the goal is to minimize the correlation between the shorter Walsh code lengths and the corresponding QOFs © 2002 QUALCOMM Incorporated 8-25 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview Walsh Facts cdma university z Walsh functions are used for RC1-2 z Walsh and QOFs used for RC3 -9 z W064 used for the Spreading... to channelize the Forward link © 2002 QUALCOMM Incorporated 8-24 CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview Quasi-Orthogonal Functions (QOFs) cdma university z When the Walsh limit is reached, use a new set of orthogonal code signals called Quasi-Orthogonal Functions (QOFs) z CDMA 120 Section 8-25 New sequences are orthogonal to each other but.. .CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology 80-13321-1 X11 Section 8: CDMA2 000 Overview Variable Walsh Spreading cdma university CDMA 120 Section 8-23 Higher data rate channels use shorter length Walsh codes to maintain a constant chip rate Using one of the shorter . Pilot, and Sync Channels. CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology Section 8: CDMA2 000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-14 CDMA 120 Section 8-14 cdma university Radio. CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology Section 8: CDMA2 000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-13 CDMA 120 Section 8-13 cdma university Available. Diversity Allowed CDMA 120 – cdmaOne and CDMA2 000 Concepts and Terminology Section 8: CDMA2 000 Overview 80-13321-1 X11 © 2002 QUALCOMM Incorporated 8-15 CDMA 120 Section 8-15 cdma university Radio Configuration Spreading Rate MaxDataRate* (kbps) Effective