Apple Inc. v. Samsung Electronics Co. Ltd. et al

Filing 662

EXHIBITS re #660 Administrative Motion to File Under Seal Apple Inc.'s Notice of Motion and Motion for Partial Summary Judgment Exhibits to Mueller Declaration ISO Apple's Motion for Partial Summary Judgment [660-9] filed byApple Inc.(a California corporation). (Attachments: #1 Exhibit Mueller Decl Exhibit 26, #2 Exhibit Mueller Decl Exhibit 27, #3 Exhibit Mueller Decl Exhibit 28, #4 Exhibit Mueller Decl Exhibit 29, #5 Exhibit Mueller Decl Exhibit 30, #6 Exhibit Mueller Decl Exhibit 31, #7 Exhibit Mueller Decl Exhibit 32, #8 Exhibit Mueller Decl Exhibit 33, #9 Exhibit Mueller Decl Exhibit 34, #10 Exhibit Mueller Decl Exhibit 35, #11 Exhibit Mueller Decl Exhibit 36, #12 Exhibit Mueller Decl Exhibit 37, #13 Exhibit Mueller Decl Exhibit 38, #14 Exhibit Mueller Decl Exhibit 39, #15 Exhibit Mueller Decl Exhibit 40, #16 Exhibit Mueller Decl Exhibit 41)(Related document(s) #660 ) (Selwyn, Mark) (Filed on 1/25/2012)

Mueller Exhibit 39

3GPP_TSG_RAN_WG1 Archives -- August 2004 (#88)

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Date:
Thu, 12 Aug 2004 11:24:30 +0900
Reply-To:
Juho Lee <[log in to unmask]>
From:
Juho Lee <[log in to unmask]>
Subject:
A set of Samsung contributions on enhanced uplink
Content-type: multipart/mixed;

Dear all,
Attached please find a set of Samsung contributions on enhanced uplink.
R1-040851, Node B controlled scheduling (AI 9.2)
R1-040854, Uplink signalling for Node B controlled scheduling (AI 8.5)
(revised from R1-040696)
R1-040855, HARQ: physical layer aspects (AI 8.2) (revised from R1-040797
R1-040864, HARQ principle (AI 9.1)
R1-040851 and R1-040864 are for joint session with RAN2.
In R1-040851, we discuss about the scheduling related issues identified in
the last meeting in Cannes and make a recommendation for each one.
In R1-040864, HARQ principle is discussed focusing on sync/async,
retransmission power setting, and SHO operation.
Best Regards,
Juho

Juho LEE, Ph. D.
Senior Engineer
Global Standards and Research Team
Telecommunication R&D Center
Samsung Electronics Co., Korea
E-mail: [log in to unmask]
Tel/Fax: [phone]

R1-040864.zip [application/x-zip-compressed]

R1-040851.zip [application/x-zip-compressed]

R1-040854.zip [application/x-zip-compressed]

R1-040855.zip [application/x-zip-compressed]

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http://list.etsi.org/scripts/wa.exe?A2=ind0408&L=3gpp_tsg_ran_wgl&T=0&P= 11614 10/11/2011
APLNDC-WH-A 0000010793

3GPP TSG-RAN WG1 Meeting #38
Prague, Czech Republic, 16 - 20 August, 2004

Agenda item:

9.1

Source:

Samsung

Title:

HARQ principle

Document for:

R1-040864

Discussion and Decision

1. Introduction
In RAN WG1 meeting #37 in Montreal, followings were agreed about HARQ:
Incremental redundancy (IR) with chase combining (CC) as a sub-case.
Stop and wait HARQ similar to HSDPA.
Synchronous ACK/NACKs.
HARQ/E-DCH in SHO.
¯

Intra-Node-B ~softer" HO supported for E-DCH.

¯

Inter-Node-B soft HO: Should be supported, proposals invited.

Re-ordering entity in the SRNC.
In this contribution, we continue to discuss further about the HARQ focusing on
Synchronous vs asynchronous HARQ retransmissions.
Power setting for retransmission.
Operation in soft handover.

2. Synchronous vs asynchronous HARQ retransmission
There are two alternatives for HARQ mechanism being discussed.
Synchronous HARQ. Transmission timing of each process is tied to the frame timing. The transmitter should
send the retransmission to the receiver at the predefined retransmission timing.
Asynchronous HARQ. Transmission timing of each process is not tied to the frame timing. Hence, the
process ID should be transmitted to the receiver, which causes additional signalling overhead.
In HS-DSCH, since multiple UEs share the code resource of the serving Node B, there is a need for having flexible
scheduling of transmission timing of each HARQ process. In uplink, however, since there is no such restriction on
code resource due to other UEs, there is no need for employing the asynchronous HARQ retransmission.
In the last meeting in Cannes, it was discussed that in the asynchronous HARQ, certain urgent traffic could be sent
through the process which has been finished with ACK signalling. In such cases, the gain of the asynchronous HARQ
over the synchronous HARQ in latency would be (~V - 1) x TTI at most and (~V - 1) x TTI/2 in average. However,
that gain is not seen as significant compared to the additional L1 signalling overhead required to indicate the process
ID every E-DCH TTI.
It is also noted that even with the synchronous HARQ retransmission, we could rely on a pre-emption functionality to
avoid possible latency for such a really urgent traffic if needed.
Therefore, the synchronous HARQ is recommended.

APLNDC-WH-A 0000010864

3GPP TSG-RAN WG1 Meeting #38
Prague, Czech Republic, 16 - 20 August, 2004

R1-040864

3. Power setting for retransmission
In the last meeting in Cannes, it was agreed that logical channels mapped on the DCHs are always prioritised over
those mapped on E-DCHs. According to the agreement, the UE operation is as follows, which is copied from [ 1 ]:
The UE performs the TFC selection for the DCHs;
Every E-DCH TTI, the UE shall estimate the remaining power;
¯

Then it performs the TFC selection for the E-DCH, with the estimated remaining power, based on
logical channel priorities like in the R99;

Even though the E-DCH transport format was properly selected for the initial transmission, the required power may
not be available at the retransmission instant due to
Change in DCH TFC
Increased transmit power due to power control to overcome channel variation
There are two possible options to limit the total transmit power within the maximum power limit.
Option 1 : Equal scaling of the transmit power of all uplink channels to meet the power limitation.
Option 2: Only E-DCH transmit power is scaled down to meet the power limitation.
With the option 1, the DCH transmission would suffer from unexpected performance degradation, since the DCH TFC
is selected without taking into account the E-DCH retransmissions according to the prioritization of DCH over EDCH.
Therefore, the option 2 is recommended to avoid the unexpected performance degradation of DCH having higher
priority. It is noted that the option 2 is in line with the rule for selecting E-DCH TFC according to the prioritization as
described above.

4. Soft handover operation
In soft handover, the UE would receive ACK/NACK signalling from all Node Bs involved in E-DCH reception. The
UE should stop retransmission if it receives ACK from at least a single Node B. Otherwise, it may continue
retransmissions.
When the UE is in soft handover, some of the active set Node Bs may not be able to receive all of previous
transmissions, since receive power level may not be enough due to the uplink power control principle in soft handover.
In this case, non-self-decodable retransmissions will not be helpful for those Node Bs that have missed the previous
transmissions, especially, e.g., initial transmission. This would reduce the achievable selection combining gain and
hence would degrade the system throughput. Hence, we recommend using only self-decodable redundancy versions
when the UE is in soft handover.

5. Conclusions
Based on the discussion in this contribution, we propose to agree on the following recommendations as the HARQ
principle.
Recommendations:
Synchronous HARQ. Transmission timing of each process is tied to the frame timing. The UE should send
the retransmission to the Node B at the predefined retransmission timing.

APLNDC-WH-A 0000010865

3GPP TSG-RAN WG1 Meeting #38
Prague, Czech Republic, 16 - 20 August, 2004

R1-040864

Every E-DCH TTI, the UE shall estimate the power required for support of DCH as well as E-DCH
retransmission. If the required power is not available, only E-DCH transmit power is scaled down to limit the
total transmit power within the maximum power limit.
HARQ operation in soft handover
¯

The UE would receive ACK/NACK signalling from all Node Bs involved in E-DCH reception.

¯

The UE should stop retransmission if it receives ACK from at least a single Node B. Otherwise, it may
continue retransmissions.

¯

It is defined that only self-decodable versions are transmitted in soft handover.

References
[1] R2-041460, TS 25.309 v0.2.0
Contact person:

Juho Lee ([e-mail])

APLNDC-WH-A 0000010866