HDR Overview

7/29/2019 HDR Overview

1/19

1

1xHDR Overview1xHDR Overview

3GPP2-C30-20000327-____

2000 Contributing companies. All rights reserved.The information contained in this contribution is provided for the sole purpose of promoting discussion within the 3GPP2 and its Organization Partners and is not bindingon the contributor. The contributor reserves the right to add to, amend, or withdraw the statements contained herein.

March 27, 2000

Ericsson, Lucent Technologies, QUALCOMM Incorporated

Contact: Peter Black, Qualcomm ([email protected])


2/19

2

Proposal for HighProposal for High--Performance Packet DataPerformance Packet Data

Proposed CDMA2000 Companion High Data Rate

(HDR) Standard> network architecture

> radio link protocol

> signaling> physical layer

Supporting companies

Casio, Denso, Ericsson, Hitachi, Kyocera, LGIC, Lucent

Technologies, Qualcomm, Samsung Electronics, Sanyo,

Sharp, Si erra Wi r eless, Toshiba


3/19

3

1xHDR Approach1xHDR Approach

Voice and high-speed packet data for wirel ess

internet impose vastly different requirements:

Voice - low speed, symmetric, low latency, uniform GOS

Packet Data - high burst rates, asymmetric, variable latency,

non-uniform GOS.

Solution - dedicated carrier for packet data services

(HDR):

Maintain compatibility with cdma2000 network architectures

and plans

Maintain compatibility with cdma2000 RF parameters andcomponents

Terminal interop between 1x and HDR

Dynamic carrier allocation 1x or HDR.


4/19

4

1xHDR S oluti on1xHDR S oluti on

Forward-link

TDMed, full power, variable rate (38.4kbps - 2.4576Mbps)

Rapid, low latency channel state feedback (600Hz)

Adaptive coding and modulation (R=1/4-1/2, 4-PSK, 8-PSK,

16-QAM) Full power burst pilot

No soft handoff

Multi-user and multi-antenna receive diversity.

Reverse-Link

Pilot added coherent demodulation (4.8kbps - 153.6kbps)

Soft handoff

Open/closed loop control.


5/19

5

Adaptive Variable Rate Forward LinkAdaptive Variable Rate Forward Link

Power

Time

User 1

Rate=614.4 kbps

User 2

Rate=307.2 kbps

User 3

Rate=1.228 Mbps

IDLE

Pilot Bursts


6/19

6

Channel Estimation and Rate FeedbackChannel Estimation and Rate Feedback


7/19

7

Rate Prediction PerformanceRate Prediction Performance

OTA Sector Capacity Results

500,000

600,000

700,000

800,000

900,000

1,000,000

1,100,000

1,200,000

1,300,000

1,400,000

1,500,000

1,600,000

1,700,000

1,800,000

1,900,000

2,000,000

0 1 2 3 4 5 6 7 8 9

Users

Throughput(kbps)

actual predictor

genie-aided predictor


8/19

8

MultiMulti--User Diversity GainUser Diversity Gain


9/19

9

MultiMulti--User and MultiUser and Multi--Antenna Diversity GainAntenna Diversity Gain

OTA Sector Capacity - Mobility Run

0

200,000

400,000

600,000

800,000

1,000,000

1,200,000

0 2 4 6 8 10 12 14 16 18

Active Users

Throughput(b/s)

Single Antenna

Antenna Diversity


10/19

10

1x HDR Architecture and Requirements1x HDR Architecture and Requirements

Contact: Ramin Rezaiifar ([email protected])Contact: Ramin Rezaiifar ([email protected])


11/19

11

TermsTerms

AT: Access Terminal

IS-2000 Network Access mode:A mode of access in whichthe AT is communicating with only the IS-2000 RN.

HDR Network Access mode:A mode of access in which theAT is communicating with only the 1xHDR RN.

Hybrid AT:An Access Terminal that can operate in a 1xHDRRadio Network, IS-2000 Radio Network, or both radio networks.

Hybrid Network Access Mode:A mode of access in which theAT is exchanging data with the 1xHDR RN and monitoring theIS-2000 common channels.

PCF:Packet Control Function RN: Radio Network.

In IS-2000, an RN is the footprint of a PCF. In 1xHDR, RN isthe footprint of a 1xHDR BSC.


12/19

12

RequirementsRequirements

The following is a list of requirements that will be respectedrelative to interaction between the IS-2000 set ofspecifications and 1xHDR specification:

R1. No changes shall be made to the IOS specification(produced by TSG-A):

R1.1. No changes shall be made to the MSC interfaces.

R1.2. No changes shall be made to the PDSN interfaces.

R2. No changes shall be made to the IS-2000 specifications.

R3. No changes shall be made to the "Wireless IP NetworkStandard" (produced by TSG-P).

R4. The standard should allow support for a Hybrid AT toreceive notifications for mobile station terminated voice calls andother services provided by IS-2000 (e.g., Broadcast SMS) evenwhen the AT is exchanging data with a 1xHDR RN.


13/19

13

Requirements (contd)Requirements (contd)

R5. From the PDSN point of view an RN change from an IS-2000 RN to a 1xHDR RN should not be any different than an

RN change between two IS-2000 RN's.

R6. From the PDSN point of view an RN change from a

1xHDR RN to an IS-2000 RN should not be any different thanan RN change between two IS-2000 RN's.

R7. It shall be possible for IS-2000 RN and 1xHDR RN to beimplemented independently.

R8. The 1xHDR RN shall not have any connection to the

MSC. R9. The specification shall support the scenarios listed in the

Scenario Slides.


14/19

14

Network ArchitectureNetwork Architecture

The 1xHDR BSC does not require a connection to the MSC.Requirement R4 is satisfied by the AT monitoring the IS-2000common channels while the AT is exchanging data with the1xHDR RN.

IS-2000 Radio Network

1xHDR Radio Network

PDSN

MSC

1xHDRBTS

1xHDRBSC

IS-2000

BSC

IS-2000

BTS

A11

A10

A2

A5

A1

A11

A10


15/19

15

Example of Network TopologyExample of Network Topology

PDSN #1

IP cloud

A10/A11

AT

PDSN #2

A10/A11

IS-41 MSCIS-41 MSC

SS7

A1/A2/A5A1/A2/A5

1xHDR RN #2 IS2k RN #11xHDR RN #1 IS2k RN #2

A10/A11

A1/A2/A5

The above figure shows an example 1xHDR/IS-2000 network topology. Each1xHDR RN is connected to a collection of PDSNs through an IP network. Theoverlapped area between 1xHDR RN #2 and IS-2000 RN #1 signifies an areain which both 1xHDR and IS-2000 carriers are present.


16/19

16

Hybrid AT ScenariosHybrid AT Scenarios

The following is a (non-exhaustive) list of the scenarios that aresupported by the 1xHDR specification for a Hybrid AT:

Scenario 1:

AT moves from a 1xHDR Radio Network (1xHDR RN#1) to another 1xHDR

RN (1xHDR RN#2) while the packet data service is Dormant.

Scenario 2: While the AT is exchanging data in a 1xHDR RN, it receives a page for an

incoming voice service instance from the IS-2000 RN. The AT switches to

the IS-2000 RN and continues voice + data in the IS-2000 RN.

Scenario 3:

While the AT is exchanging data in a 1xHDR RN, it initiates a voice call in

the IS-2000 RN. The AT switches to the IS-2000 RN and continues voice +data in the IS-2000 RN.


17/19

17

Hybrid AT Scenarios (contd)Hybrid AT Scenarios (contd)

Scenario 4: While the AT resides in the coverage area of a 1xHDR RN,

the packet data service transitions to the Dormant State.After a certain period of inactivity (which is up to the AT

configuration) the AT performs a Dormant handoff to the

overlaid IS-2000 RN to ensure that the Dormancy of thepacket data service instance is preserved without requiring

the AT to monitor both 1xHDR and IS-2000 carriers for an

extended period of time.

Scenario 5:

While the AT resides in the coverage area of a 1xHDR RN,

the packet data service transitions to the Dormant State.The AT remains in the 1xHDR RN (with the Dormantpacket data service) and monitor the IS-2000 common

channels as well as the 1xHDR Control Channel.


18/19


19/19

19

Hybrid AT Scenarios (contd)Hybrid AT Scenarios (contd)

Scenario 8:

AT receives an IS-2000 Broadcast SMS while it is exchanging data

with the 1xHDR RN.

Scenario 9:

Both voice & data service instances are active in the IS-2000 RN.

Voice service instance ends. The AT stays in the IS-2000 RN.

Scenario 10:

Both voice & data service instances are active in the IS-2000 RN.

Voice service instance ends. The AT switches to the 1xHDR RNand continue the packet data exchange in the 1xHDR RN (and

monitors the common channels of IS-2000 RN).

HDR Overview

Documents

Transcript of HDR Overview