3gpp2 tsg-p title: bcmcs adhoc Meeting Summary



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3GPP2 TSG-P

TITLE:

BCMCS Adhoc Meeting Summary
SOURCE:

Jun Wang


TSG-P BCMCS Adhoc Chair

Qualcomm Inc



jwang@qualcomm.com

858-658-4884



BCMCS Adhoc met twice to discuss the BCMCS related issues. The followings are meeting summary.

May 22, 2002 Meeting:

Date and Time: May 22, 2002, 5:30PM to 7:30PM (CT)

Attendees: Cisco, Comworks, Ericsson, LGE, Nokia, Nortel Networks, Qualcomm Inc., Samsung Electronics.

Issues are discussed:

  1. Some discussions on the terms of references of the Adhoc. Should the Adhoc focus on the technical discussions and try to reach a consensus on the common approach for BCMCS architectures, stage 2 and stage 3 or should the Adhoc only focus on the TSG-P BCMCS requirements? No consensus is made.

  2. Several members expressed that the Adhoc group should work on the Broadcast/Multicast service requirements relevant to TSG-P before further looking into architecture framework.

  3. Samsung presented their contribution (P00-BCMCS-20020522-001) to suggest that Broadcast/Multicast should be moved from D3 work items to post Release D work items because TSG-C will work on the 1XEV-DV addendum with Release D and it may slow down the new business such as BCMCS. SAMSUNG also proposed in this contribution that Adhoc group should work on BCMCS technical requirement on TSG-P perspective, and make recommendation to TSG-A/C. The suggestion is supported by Nokia and Cisco. Some companies felt that the BCMCS schedule needs to be addressed by TSG-P because of lack of service providers’ input in this Adhoc and the recommendation to TSG-A/C on BCMCS requirements may be beyond of the scope of TGS-P. The issues are left open.

  4. Qualcomm proposed the phased approach for BCMCS service. The issue is left open.

  5. The group agreed the following process rule so that progress can be made smoothly: if only one company has objection, the issue will be move forward regardless the objection. If two or more companies have objections, the issue will remain open for further study.

  6. Nokia presented their contribution on BCMCS design goals and system requirements (see P00-BCMCS-20020522-002):

    • Section 2: Regarding on the requirements for support of receiver heterogeneity, spectrum efficiency radio transmissions, and the rate control by the base station, some companies felt that the requirements are not feasible to implement and should be debated in TSG-C or TSG-A. There is no consensus.

    • Section3: The group has reviewed system requirements up to number 6 under section 3.1. Numbers 1 and 4 are agreed by the group. Numbers 2 and 5 are agreed with modifications. Numbers 3 and 6 remain open. Please see following for more detail.

    • The following System Requirements are agreed by the group:

  1. For IPv4, the end-to-end solution is using Class-D IP Multicast addresses. IP broadcast addresses should not be used for the multicast/broadcast services.

  2. A mapping between radio connections and IP Multi­cast­ing flows identifier shall be defined.

  3. A standard multicast routing protocol shall be used for the IP related part of the architecture.

  4. Header Compression may be support in the MS and the system.

    • Open issues:

  1. Should BCMCS design also apply for IPv6?

  2. The following System Requirements remain open:

    • Depending on the number of content subscribers, it should be possible for the system to transmit between broadcast and non-broadcast radio channel.

    • There shall be a way to configure an “always present” kind of service, i.e. a service similar to the TV broadcast service.


Future Meeting Scheduled:

The group agreed that another BCMCS Adhoc will be held at June 5, 2002, 5:30PM to 7:30PM (CT). The meeting bridge will be provided by the chair before the conference call.


Contribution Lists:


Contribution No.

Title

Source

Status

P00-BCMCS-20020522-001

Recommendation for Broadcast/Multicast Adhoc work in TSG-P

Samsung Electronics

Open

P00-BCMCS-20020522-002

BCMCS Design Goals and System Requirements

Nokia

Open

The following contributions are remanded from TSG-P

P00-20011203-007

Cdma2000 Layered Broadcast/ Multicast Services

Nokia

Open

P00-20011203-011

A framework for Broadcast/multicast services based on IP Multicast

Ericsson

Open

P00-20020107-007

Early Deployment of Broadcast Services R1

Qualcomm

Open

P00-20020107-011

cdma2000 multicast issue list

Samsung Electronics

Open

P00-20020107-012

Comments on multicast service contributions

Tahoe

Open

P00-20020107-015

A Phased Approach for BCMCS

Qualcomm

Open

P00-20020204-012

Phased BCMCS approach revision 0.2

Samsung Electronics

Open

P00-20020204-013

BCMCS Comments

Lucent

Open

P00-200200204-015

3GPP2 BCMCS Stage 1 Questions

Nokia

Open

P00-20020204-017

CDMA2000 Broadcast/Multicast Services Stage 2; Higher Layer Design, Version 0.05


Qualcomm

Open

P00-20020311-005

Full Header Update Enhancement

Nokia

Open

P00-20020415-008

Reducing impact on the cdma2000 overhead channels for BCMC Service

Nortel Networks

Open

P00-20020513-015R2

CDMA2000 IP Multicast Service Framework v0.01

Samsung Electronics

Open



June 5, 2002 Meeting:

Date and Time: June 5, 2002, 5:30PM to 7:30PM (CT)

Attendees: Cisco, Comworks, Ericsson, LGE, Lucent, Nokia, Nortel Networks, Qualcomm Inc., Samsung Electronics.

Issues are discussed:

  1. The group agreed to only include TSG-P requirements/working assumptions in BCMCS Adhoc Agenda.

  2. The group agreed to meet face in face in Shenzhen to finish the work regarding on TSG-P BCMCS requirements and design goals if TSG-P allocates the time to the Adhoc. After that, the Adhoc will seek the guideline from TSG-P on how to proceed in the next step (whether to continuously work on stage 2 and stage 3).

  3. Some discussions on how mapping between the different standards over the different interfaces. The following table gives the mapping.




Air Interface Standard

IOS Standards

IP Network Standard

IS-2000

V4.0

IS-835

IS-2000-A

V4.1

IS-835-A

IS-2000-B (Partial)

V4.2

IS-835-B (Partial)

IS-2000-B

V4.3 (Add multiple Sis Support etc)

IS-835-B

IS-2000-C

V5.0

IS-835-C



  1. The group will decide whether to send a liaison to TSG-S and other TSGs after the work on TSG-P requirements is finished.

  2. Nokia continuously presented their contribution on BCMCS design goals and system requirements (see P00-BCMCS-20020522-002):

    • Section 2: Regarding on the requirements for support of receiver heterogeneity, spectrum-effeiciency readio transmission, and the rate control by the base station, some companies felt that the requirements are not feasible to implement and should be debated in TSG-C or TSG-A. There is no concensus.

    • Section 3.1: The group has finished to review system requirements on this section. Number 7 is agreed with the modifications. Numbers 8, 9, 10, and 12 are not needed (Number 8 is already included in BCMCS stage 1 requirements; Number 9 is common sense; Number 10 is not correct requirement; Number 12 will be included in Number 11 with the modifications). Number 11 (with the modifications) remains open and waits to see whether it will be added in the TSG-S stage 1 requirement. Please see following for more detail.

    • The following System Requirement is agreed by the group:

  • The different multicast IP flows shall be supported and identified by the different multicast IP addresses and port numbers.

    • The following System Requirement remains open:

    • The subscriber shall be able to discover what broadcast and multicast services are available at the subscriber’s current location.


Future Meeting Scheduled:

The group agreed that BCMCS Adhoc should meet face in face in Shenzhen if TSG-P schedule is permitted.


Contribution Lists:


Contribution No.

Title

Source

Status

P00-BCMCS-20020605-001

BCMCS Adhoc Agenda

Chair

Approved with mod.

P00-BCMCS-20020605-002

BCMCS Adhoc Meeting Summary (May 22, 02)

Chair

Approved with mod.

P00-BCMCS-20020605-003

Broadcast and Multicast Service Stage-2 Requirement

Samsung

Open




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