1xEV-DO Rev a Introduction (Lucent)

8/12/2019 1xEV-DO Rev a Introduction (Lucent)

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In troduc t ions to 1xEV-DO Rev A

Zhang WentaoChina Wireless Stand ard Team

Zwt @lucent.com

+86 10 62256677 x 8962


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Contents

! Standards Status Introduc t ion

! Overview of Rev A Enhancements

! Enhancements of PHY Layer

! Enhancements of Higher Layers


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1994 1998

2000

20042003

IS-95A IS-95BTIA-2000

(cdma2000 1xRev. 0)

1999 TIA-856 Rev 0

(HRPD)

TIA-856 Rev A

(HRPD)

Standards Completion Dates

(or expected completion dates)

shown in RED

2004

TIA-856 Rev B

(HRPD)

2006?

2006?

TIA-2000

Rev A

TIA-2000 Rev D

(1xEV-DV)

TIA-2000 Rev C

(1xEV-DV)TIA-2000 Rev E

(1xEV-DV)

IS-1006-A

(BCMCS)

2004 2005 (?)

For Platinum service

IS-1006

(BCMCS)

HRPD Standards Technology Evolution


4/417/20/2004

! DO Rev. A Enhancements Operable over Rev. 0/Rev.A Physical Layer Inter-user & Intra-user QoS

Multicast (BCMCS)

! DO Rev. A Features Operable over Rev. A PhysicalLayer FL Peak data rate 3.1 Mbps (Rev. 0 - 2.4 Mbps)

RL Peak data rate 1.8 Mbps (Rev. 0 153 Kbps)

Shorter frame length RL for reduced latency Multi-user frames (for FL)

HARQ

7-bit MACIndex

Data Source Control (DSC) for seamless cell selection

! 1xEV-DO Rev A - Standards Status TIA-856-A, Air Interface, Complete

! QoS and VoIP Support Standards Status TIA-856-A, Air Interface, Complete Header Compression (Supplemental Document) Expected EOY 2004

IS-878-A, IOS, Completion Expected EOY 2004

1xEV-DO Rev A Standards Status


5/417/20/2004

! Standards Status Introduct ion


! Enhancements o f PHY Layer



6/417/20/2004

Enhanced Idle

State

Protocol

Virtual Stream

Protocol

CDMA2000

Circuit Services

NotificationProtocolRadio Link

Protocol

EnhancedControl

Channel MAC

Protocol

Enhanced

Access ChannelMAC Protocol

Subtype 1Reverse Traffic

Channel MAC

Protocol

EnhancedForward Traffic

Channel MAC

Protocol

Session

Layer

Stream

Layer

Application

Layer

MAC

Layer

Security

Layer

Physical

Layer

Generic

SecurityProtocol

SHA-1Authentication

Protocol

Multi-flow PacketApplication

CDMA2000 CircuitServices Notification

Application

Location UpdateProtocol

DH KeyExchange

Protocol

Flow

ControlProtocol

Data Over

SignalingProtocol

MultimodeCapability Discovery

Application

Multimode

Capability

DiscoveryProtocol

Connection

Layer


Channel MAC

Protocol


Channel MAC

Protocol

Subtype 1

Physical LayerProtocol

Subtype 2

Physical LayerProtocol

Rev A Non-Default Protocols

YELLOW COLORS are new Features inRev A


7/417/20/2004

1xEV-DO

Forward Reverse

Pilot MAC Traffic Control

RAB RPC

Traffic Access

Pilot RRI Data ACK Pilot DataDRCDRCLock ARQ DSC

Rev A PHY Channel Structure


8/417/20/2004

! Support for Shorter Frame Sizes and Hybrid ARQ on

the Reverse Link

! Support for 3.1 Mb/s Peak Forward Data Rate! Support for 1.8Mb/s Peak Reverse Data Rate

8-PSK Modulation

A new 12288 bits encoder packet

! Enhanced Control Channel

A single-user page of 4-slot transmission versus default control

channel of 16-slots. This allows for quick paging of the mobile.! ARQ Mode Enhancement

Adding another mode of Hybrid ARQ ACK/NACK. The new mode

allows further flexibility to the ARQ channel power allocation.

Rev A PHY Layer Enhancements


9/417/20/2004

! QoS-related Enhancements Multi-Flow Packet Data Application

Multiple RLP Instances for Different Traffic Flows

Tuning RLP Parameters for QoS Delivery (Disable NAKing,Adjusting the RLP Timeout, etc.)

QoS BLOB to Associate QoS Characteristics with Flows

Data Over Signaling (analogous to TIA-2000 Short Data Bursts)

Reverse Link MAC Enhancements for QoS

Multi-flow RL MAC Settable Fluid MAC Parameters for each Flow

Idle State Protocol Support for Shorter Slot Cycle Reduced Activation Time for AT-terminated Reactivation

Battery Life Improvement Forward Link Enhancements

Multi-User Packets

Mult ip lexing of Traf f ic fo r Di f ferent ATs into a Sing le

Physical Layer Packet Data Source Control (DSC) for seamless cell selection

Rev A Upper Layers Enhancements


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Contd

! 3G1X Circuit Services Notification Application Deliver 3G1X Voice Call Pages while on HRPD Traffic Channel

(without requiring Hybrid Mode monitoring in MS/AT)

Delivery of SMS and other Data Burst Messages while onHRPD Traffic Channel

Permit MS/AT to Drop to Monitoring Only3G1X while StillSupporting Push Data on HRPD

!

Multimode Capability Discovery Allows AN to find out capabilities of AT

! Multiple Personalities Support Boundaries with Differing Service Configuration

Requirements

E.g., Boundary between Release A MAC/PHY-capable BTSsand Release 0 MAC/PHY-capable BTSs

Can be Used for Inter-system Hard Handoff


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Generic Attribute Update Protocol

Allows Simple Configuration Attribute Changes without

Costly Session Configuration Protocol Exchange and

without Releasing the Connection

Contd


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! Enhancements of PHY Layer



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MAC

Layer

Physical

Layer

Control

Channel

MAC

Protocol

or or

Enhanced

CC MAC

Protocol

or

Access

Channel

MAC

Protocol

Enhanced

AC MAC

Protocol

or

Reverse

TC MAC

Protocol

or

Subtype 1

Reverse

TC MAC

Protocol

or or

Subtype 3 Reverse TC

MAC Protocol

(MAC Flows)

Subtype 2

Reverse

TC MAC

Protocol

or

Forward

TC MAC

Protocol

Enhanced

Forward

TC MAC

Protocol

Subtype 0

(Legacy)

PHY

Subtype 2

(Release A)

PHY

Subtype1

PHY

PHY Layer Subtypes

YELLOW COLORS are new Features inRev A


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Contd

! Subtype 0

Release 0 PHY

! Subtype 1

Release 0 PHY

Supports Enhanced Access ChannelMAC (Subtype 1)

! Subtype 2

Release A PHY


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ACKP

CNAKP

CACKP

CNAKP

C NAKP

CACKP

CNAKP

CNAKP

C

Pkt 0 Pkt 1 Pkt 2 Pkt 3 Pkt 1' Pkt 1''Pkt 4 Pkt 3'

Interlace P eriod

12 slots

(RL Subframe)

4 slots

4 slots 1 slot FL ARQ Channel

RL Sub-Packets

(Three) Packet Intelaces

3 slots

Power Control Slots

RL PHY Layer ARQ


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Data Channel

RRI

1 sub-frame

1 slot

Pilot Channel

DRC Channel

Auxiliary Pilot Channel

ACK ACK ACKACKDSC DSC DSC DSC

RTC Sub-frame Structure (Subtype 2)


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RTC Modulation Formats

Modulation

FormatModulation, Walsh Function

B4 (BPSK,W24)

Q4 (QPSK,W24)

Q2 (QPSK,W12)

Q4Q2 (QPSK,W24) + (QPSK,W12)

E4E2 (8-PSK,W2

4) + (8-PSK, W1

2)


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L-ARQ bit onARQ Channel

H-ARQ bit onARQ Channel

TransmitSub-frame

1

n n + 1 n + 2 n + 3 n + 4 n + 5 n + 6 n + 7 n + 9 n + 10 n + 11n + 8 n + 12Sub-frames

Reverse TrafficChannel Physical

Layer PacketTransmissions

TransmitSub-frame

1

TransmitSub-frame

2

First Sub-framefor the Next

Physical Layer

PacketTransmission

TransmitSub-frame

3

TransmitSub-frame

2

1 Sub-frame

1 Sub-frameACK

3 Slot Offset

ACK NAKNAK NAK

P-ARQ bit onARQ Channel

RTC Packet Transmission with Early Termination


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H-ARQ bit onARQ Channel

3 Slot Offset

TransmitSub-frame

1

n n + 1 n + 2 n + 3 n + 4 n + 5 n + 6 n + 7 n + 9 n + 10 n + 11n + 8 n + 12Sub-frames

Reverse TrafficChannel Physical

Layer PacketTransmissions

TransmitSub-frame

3

TransmitSub-frame

2

First Sub-framefor the Next

Physical LayerPacket

Transmission

TransmitSub-frame

1

TransmitSub-frame

4

L-ARQ bit onARQ Channel

1 Sub-frameNAK

P-ARQ bit onARQ Channel

1 Sub-frameNAK

NAKNAK NAK

RTC Packet Transmission Failure


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RRI

ACK

0dB

Data (4-ary Walsh)

Pilot

-6

dB

DSC 4 dB

Data (2-aryWalsh)

DRC

RRI Pilot

DRC

0

dB

ACK/NAK

Data (4 chip Walsh)

RRI Pilot

1/8 Slot

4 dB

Comparisons of RTC RL Structure of Rev 0/A


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In revision 0, the AT service on the forward-link may be interruptedduring cell selection when the new base-station undergoes thenecessary preparation

The function of the DSC channel is to indicate the desired FLserving cell ahead of the DRC sector information

With DSC, once an AT wants to switch cells, it first sends the DSC

information that contains the new cell information so that theswitching process can start while the AT is still receiving data fromthe old cell.

Once the DSC message takes effect, the AT would then point itsDRC to one of the sectors in the new cell and receive serviceinstantly

DSC for Fast Cell Selection


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DSCm

DRC nDRC

n+1

DRC

n+2

DRC

n+3

DRC

n+4

DRC

n+5

DRC

n+6

DRC

n+7

DRC

n+8

DRC

n+9

DSC m+2

Period of validity of DSCmPeriod of validity of DSCm+1

DRC

n - 1

DRC

n - 2

DRC

n - 3

DRC

n - 4

Period of validity of DSCm-1

L

2

slots L

2

slots L

2

slots

L1 slots L1 slots

1 slot

DSC m+1A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

1/2 slot

DRC

n+10

Contd


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!Enhancements of PHY Layer



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! Tunneling of 3G1X LAC-Encoded PDUs OverHRPD Air Interface on Behalf of cdma2000 System

General Purpose and Extensible Mechanism Supports Acknowledgement for Reliable Delivery (AckRequired)

SMS, Registration Messages, GPMs, Orders, etc.

! Utilizes Streams or Virtual Streams as Bearers! Registration Mechanism to Report that the MS/AT

is Currently Monitoring HRPD and Not Monitoringcdma2000 Common Channels

I.e., that Tunneling of cdma2000 Events Must be Performed

Assumption is that HRPD System will Have an A1-like Interface(TBD in TSG-A) to the (an) MSC and the MSC will Forward

Locating Events Like Page Requests and SMS Messages tothe HRPD System when the Registration is in Effect

CDMA2000 Circuit Services Notification Protocol

CDMA2000 Circuit Services Notification


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CDMA2000 Circuit Services Notification

Application Encapsulation

Stream Layer payload

CDMA2000 Circuit Services Notification Application

Payload

C2K

header

CDMA2000 LAC Encapsulated PDU

Cross-Notification Examples: ( Delivery of a Page


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HRPD BS MSC

a

b

time

HRPD: 3G1XServices packet

(data burst message)

c

MS/AT

ADDS Page Ack

ADDS Page

T3113

d

HRPD: SLP ack)

Cross Notification Examples: ( Delivery of a Page

to the MA/AT over HRPD Air interface)

Cross-Notification Examples: Handoff Across MSC


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HRPD BSTarget

MSCMS/AT

a

b

time

d

c

HRPD: RouteUpdate

HRPD: 3G1XServices packet (Registration Accepted Order)

Location Updating RequestT3210

HRPD: 3G1XServices packet (Registration Order)

HRPD: 3G1XServices packet (Registration Message)

Location Updating Accept e

f

p

Boundary

Multimode Capability Discovery Application


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! SimultaneousCommonChannelTransmit

Does Not Have Multiple Tuneable Transmitters

Does Have, but Limited to Adjacent Channels in Same Band Class Does Have, and Can be Tuned to Channels in the Same Band Class

Does Have, and Can be Tuned to Any Channel in Any Band Class

!

SimultaneousDedicatedChannelTransmit

Same, but for Traffic Channels

! SimultaneousCommonChannelReceive

Does Not Have Multiple Tuneable Receivers

Does Have Multiple Tuneable Receivers

! SimultaneousDedicatedChannelReceive Same, but for Traffic Channels

p y y pp

Attributes


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7/20/2004

! Multiple RLP Flows Each Flow Operates as an Independent RLP Instance (V(N),

etc.)

Independently Settable RLP Parameters (e.g., NAKing, NAK

Timer, etc.) Sequence Number Space Defined for Each RLP Instance

Flows are Multiplexed Onto Streams or Virtual Streams

RLP Instances Can be Reset Individually or All Together

Flows/RLP Instances may be Asymmetric Between Forwardand Reverse Links

! Data Over Signaling Protocol SDBs for HRPD

E.g., to Send Small Amount of Data over Access or ControlChannels

Differences from TIA-2000 SDBs:

Sequence Number is Carried in DataOverSignal ing Message

Supports Positive Acknowledgement if Needed (AckRequiredbit)

Multi-flow Packet Application


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Supports Up to 127 Virtual Streams to be ConfiguredDynamically (via GAUP)

Independent from 4 Existing Streams (which can Coexist

with Virtual Streams)

Implemented to Provide Common Services to Application

Protocols that Need More than 4 Streams Multiplexed:

Default Packet Data Application

Default Packet Data Application bound to RAN (for AN-AAA

Support A12)

Multi-flow Packet Data Application

cdma2000 Circuit Services Notification Protocol

Multi-mode Capability Discovery Protocol

Future Applications/Protocols TBD

Virtual Stream Protocol


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! Set of Paging Masks:

PreMaskDuration Length of Non-Dead Time Before Dead Time

MaskDuration Length of Dead Time

PostMaskDuration Length of Non-Dead Time After Dead Time

! Cycle Time for each Paging Mask = PreMaskDuration +MaskDuration + PostMaskDuration

! All Durations in Units of 4 Slots

! Permits AT to Describe Any Cycle Time, Duty Cycle, and Offsetwithin the Cycle

! AT Can Indicate an Arbitrary Set of Masks to Describe Dead

Times for Various Activities:

TIA-2000 Paging Channel Monitoring

Location Activities

Neighbor Frequency Searches Monitoring of Other Technologies

Periodic Application Requirements

Enhanced Idle State Protocol:PagingMask Attribute


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! When the access terminal is in the Monitor State, it shall

continuously monitor the Control Channel if one of the following

conditions is true for all MaskCount paging masks specified by

the PagingMask attribute:

! T mod [(PreMaskDuration + MaskDuration + PostMaskDuration)

4] < PreMaskDuration 4, or

! T mod [(PreMaskDuration + MaskDuration + PostMaskDuration)

4] >(PreMaskDuration + MaskDuration) 4

System time

AT Leaves HRPD network, monitoring CDMA2000System, or other Systems

PreMaskDuration MaskDuration PostMaskDuration

Contd


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! Enhanced CC MAC protocol

! Enhanced AC MAC protocol

!

Enhanced FTC MAC protocol! Subtype 1 RTC MAC protocol

! Subtype 2 RTC MAC protocol

! Subtype 3 RTC MAC protocol

MAC Layer Enhancements


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! Default Forward Traffic Channel MAC Release 0 FTC-MAC

Applicable to Subtype 0 or 1 PHY

!

Enhanced Forward Traffic Channel MAC Release A FTC-MAC Applicable to Subtype 2 PHY

DSC Seamless Cell Selection

Enhanced ARQ

Multi-User Packets (Up to 8 MAC Packets for Different ATs; Multicast to AllATs)

Support for Larger PHY Packet Size to Achieve 3.1 Mbps

96, 224, 480, 992, 2016, 3040, 4064, 5088-bit Formats

Ability for AN to Transmit at One of Several Transmission Formats (Packet

Length, Slot Length, Preamble Length Triplet) Associated with the DRCTransmitted by AT (i.e., AT Does Rate Determination)

FTC MAC Enhancements

Enhanced FTC MAC Packets:(Single User Multiple


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m octets

96, 224, 480, 992, 2016, 3040, 4064, or 5088 bits

( 12, 24, 60, 124, 252, 380, 508, or 636 octets)

2 bits

MAC Layer Payload

( n Security Layer Packets )

( n = 1, 2, ... )

MAC Layer Header

( m Length Fields)

( m = n or n+1)

PAD

MAC

Layer

Trailer

10

MAC Layer packet)

Enhanced FTC MAC Packets: ( Multi-user MAC


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Length : Length of the Security Layer packet (in octets )

m octets

Format

1 bit

1 octet

MACIndex

7 bits

PacketInfo field

96, 224 , 480 , 992 , 2016 , 3040 , 4064 , or 5088 bits

( 12, 24, 60, 124 , 252 , 380 , 508 , or 636 octets )

2 bits

MAC Layer Header

MAC Layer Payload

( n Security Layer Packets)

( n= 1, 2, ..., 8 )

m PacketInfo Fields

m = n or n +1 n LengthFields

PAD

MAC

LayerTrailer

00

n octets

82 m

Layer packet)

PHY L P bl MACI d


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Single User MAC Layer packet (Simplex MAC Layerpacket, Multiplex MAC Layer packet)

MACIndex assigned to the AT

Multi-User MAC Layer packet

0x42 for MAC Packet Size of 98, 226, 482 or 994 bits0x43 for MAC Packet Size of 2018 bits

0x44 for MAC Packet Size of 3042 bits



MAC Layer DataPreamble

MACIndex

PHY Layer Preamble MACIndex

RTC MAC P t l


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! Default (Subtype 0) Reverse Traffic Channel MAC Release 0 RTC-MAC; No Significant Changes

Operates with Subtype 0 or 1 PHY

!

Subtype 1 Reverse Traffic Channel MAC Same as Release 0 RTC-MAC, but with Rate Transition VectorsSettable by GAUP

Dynamically Settable Priorities with Simple Release 0 MAC

Does Not Require Running SCP or Resetting Connection toChange Transition Vectors

Operates with Subtype 0 or 1 PHY

! Subtype 2 Reverse Traffic Channel MAC

Fluid MAC for Release 0 PHY Operates with Subtype 0 or 1 PHY

! Subtype 3 Reverse Traffic Channel MAC Fluid MAC for Release A PHY

Operates with Subtype 2 PHY

RTC MAC Protocol


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