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Re: [STDS-802-16] Suggested resolution to the comments 281, 282, 284, 285, 286, 287, 288, 289, and 291



Hi, Phil and Scott,

 

The following is a harmonized recommendation to resolve the list of comments about BR procedure based on an offline discussion. Please allocate us a time slot in this afternoon to address it.

 

Please note that we would like to discuss the list below together, and then discuss #B0282 separately.

 

Thanks.

 

Lei

 

 

 

 

Comment 281: superceded by 284

Comment 284: accept-modified, with the resolution as shown below

Comment 285: superceded by 284

Comment 286: superceded by 284

Comment 287: superceded by 284

Comment 288: reject

Comment 289: accepted

Comment 291: accepted-modified, with the resolution as shown below

 

 

 

 

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Suggested Resolution to comment 284:

 

Make the following changes:

 

1. change the paragraph in line 62 page 321 as follows:

 

The 3-step random access based BR procedure is illustrated in Figure 428. At step 1, the AMS shall transmit a BR preamble sequence and a quick access message on a randomly selected opportunity. The AMS shall start the BR ACK timer after sending BR preamble sequence and a quick access message. The ABS shall start the BR ACK timer after receiving BR preamble sequence. The BR ACK timer is defined in section 10.1 Global values. BR ACK timer shall be less than BR timer. At least  If the ABS detects at least one BR preamble sequence in the BR opportunities of frame n, and the ABS does not grant UL resources by the CDMA_Allocation_IE or the UL Basic assignement IE to all the successfully received BR requests  before or in the frame n+BR_ACK_Offset, at least  one BR-ACK A-MAP IE shall be sent at the DL frame of the frame n+BR_ACK_Offset, where BR-ACK-Offset is defined in section 10.1 Global Values. where the BR ACK timer expires if the ABS detects at least one BR preamble sequence in the BR opportunities in the corresponding frame. The ABS may send multiple BR-ACK A-MAP IEs in the  different subframes in the next DL frame of frame n+BR_ACK_Offset, with each BR-ACK A-MAP IE containing its own bitmap relating to the preamble sequences being acknowledged/granted in this A-MAP IE alone. Each AMS should try to decode all BR-ACK MAP-IEs at the DL frame of frame n+BR_ACK_Offset where the BR ACK timer expires after it transmitted a BR preamble sequence in frame n. In this case if no BR-ACK A-MAP IEs are sent at the DL frame of frame n+BR_ACK_Offset where the BR ACK timer expires, the AMS considers it as an implicit-NACK and may restart BR procedure.

 

 

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Suggested resolution to comment 291

 

Change the paragraph in line 28 page 324 as follows:

 

In the regular 5-step random access BR procedure, an AMS shall send a BR preamble sequence only. The AMS shall start the BR ACK timer after sending BR preamble sequence.  If the ABS detects at least one BR  preamble sequence in frame n, and does not grant UL resources by the CDMA_Allocation_IE IE to all the successfully received BR requests   before or in the frame n+BR_ACK_Offset, the ABS shall send at lease one BR ACK A-MAP IE in the frame n+BR_ACK_Offset. After sending a BR preamble sequence at frame n, if If the AMS receives neither any UL grant before or in the frame n+BR_ACK_Offset the BR ACK timer expires nor Negative-ACK at the DL frame of the frame n+BR_ACK_Offset where the BR ACK timer expires, a fixed value of BR timer shall be activated. The rest of the BR procedure shall be the same as the fallback 5-step procedure of Figure 429.