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Function is added to parse the EGPRS header type 1 in uplink tbf path.
along with configuration parameter updation to reflect max mcs in UL
Change-Id: I13c250e2e07377982ac3f29745f3cffd4088552a
Reviewed-on: https://gerrit.osmocom.org/270
Reviewed-by: Harald Welte <laforge@gnumonks.org>
Tested-by: Jenkins Builder
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This patch will add support for MCS5,6 in EGPRS UL along with incorrect
assert correction to let MCS 6 work.
Change-Id: Iac2422c8acbdcefe20aafbba6a4eb87c9893e3ba
Reviewed-on: https://gerrit.osmocom.org/269
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
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Change-Id: I45c9fc55243224909ca2fdece8cbfa686b0f444d
Reviewed-on: https://gerrit.osmocom.org/139
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
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Parsing the uplink data header for GPRS and EGPRS header type 3
is handled in separate functions.
This patch will enhance modularity of the code.
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This shall replace the old one after the transition to bitvec based
RBBs.
Sponsored-by: On-Waves ehf
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Currently the RBB is used and passed directly to the window handling
methods. For EGPRS a more abstract bitvec is derived from the messages
and will passed around instead.
Add a similar function for GPRS so that the same window handling can
be used for GPRS and EGPRS.
Sponsored-by: On-Waves ehf
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Currently this message is ignored.
Support decoding and handling of this message. Use a bitvec for the
decoder that just represents a BSN sequence without any encoding
details (first bit -> first BSN). Return the corresponding BSN range
(snsmod(bsn_begin + bits_in_bitvec) = bsn_end), so snsmod(bsn_end-1)
is the last BSN if there is at least 1. If bsn_begin == bsn_end, no
BSNs has been added.
Note that this bitvec is not yet used for RBB handling. It just calls
the old rcvd_dl_ack with a faked (all bits are 1) RBB map.
Sponsored-by: On-Waves ehf
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This commit removes gprs_rlcmac_tbf::extract_tlli and
Decoding::tlli_from_ul_data.
Sponsored-by: On-Waves ehf
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These struct names are more specific than necessary. They are used
for GPRS (uplink) already. In downlink direction, only a few fields
will be added to the header struct. Add addition,
gprs_rlc_ul_header_egprs does not map directly to an encoded
header, like many other 'header' structs do.
Change the names to fit both modes and both directions:
gprs_rlc_ul_header_egprs -> gprs_rlc_data_info
gprs_rlc_ul_data_block_info -> gprs_rlc_data_block_info
Sponsored-by: On-Waves ehf
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This commit adds new RLC block decoder functions that support both
GPRS and EGPRS. The code path is selected based on the value of the
GprsCodingScheme cs object.
- rlc_parse_ul_data_header
parses the header of an RLC data block including the E and FBI/TI
flags (currently supported CS-1 - CS-4, MCS-1 - MCS-4).
- rlc_copy_to_aligned_buffer
copies an RLC data unit to a byte aligned buffer and returns
the unit's length.
- rlc_get_data_aligned
is a convenience wrapper around rlc_copy_to_aligned_buffer
that avoids copying if the data unit is already byte aligned.
Sponsored-by: On-Waves ehf
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The EGPRS MS class ist contained in the MS_RA_capability information.
Its presence indicates, that the MS is able (and willing) to use
EGPRS.
This commit implements basic support for retrieving, storing, and
showing it in the VTY. The information is stored in the MS object.
Sponsored-by: On-Waves ehf
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Move the parsing of the bitbmap out of the TBF code into Decoding.
Move the updating of the V_B into the V_B class. Add some comments
about handling the mod_sns, mod_sns_half parameters by using template
code.
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Move the dispatch into the PDCH. This needs to be split up
further into understandable blocks.
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Move the method into the PDCH. Extract the finding of TLLI into a
new class called Decoding. Move the assemble and forward LLC frames
into the TBF as it is poking in the internals of the TBF.
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