| Thread Links | Date Links | ||||
|---|---|---|---|---|---|
| Thread Prev | Thread Next | Thread Index | Date Prev | Date Next | Date Index |
|
Dear All, I am currently working on seamless mobility mechanisms &
IEEE 802.21 and I have a question related with the IEEE 802.21 query and commit
phases of the handover. In order to query the candidate access technology, the MIH_MN_HO_Candidate_Query
message should carry the required QoS resources. Likewise, the MIH_MN_HO_Commit
message should also carry the QoS resources to establish the reservations in
the selected candidate access technology. Nevertheless, in version 14 of the
draft, the QoSResourceRequirements parameter (QOS_LIST Data Type),
present in both messages, does not indicate the throughput value parameter.
Instead, is carries only jitter, delay and packet loss info, as follows: (as
depicted in Table F.9 - page 241 of the draft v14): SEQUENCE(NUM_COS_TYPES, LIST(MIN_PK_TX_DELAY),
LIST(AVG_PK_TX_DELAY), LIST(MAX_PK_TX_DELAY), LIST(PK_DELAY_JITTER),
LIST(PK_LOSS_RATE) ) à
Throughput is missing Therefore, how is the throughput value parameter sent to the
candidate access technologies? Is there any other parameter carrying this info? Moreover, in previous versions of the draft, this
information was included in the QOS_LIST data type (e.g. v07): SEQUENCE(NUM_QOS_TYPES, THROUGHPUT,
PACKET_ERROR_RATE, LIST(COS_MIN_PACKET_TRANSFER_DELAY), LIST(COS_AVG_PACKET_TRANSFER_DELAY),
LIST(COS_MAX_PACKETTRANSFER_DELAY), LIST(COS_PACKET_DELAY_JITTER), LIST(COS_PACKET_LOSS_RATE)) Can you please clarify this issue? Thanks in advance for your help and kindness. Best Regards, Pedro Neves |