diff src/g23m-gprs/sm/sm_qos.c @ 1:fa8dc04885d8

src/g23m-*: import from Magnetite
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 16 Oct 2020 06:25:50 +0000
parents
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-gprs/sm/sm_qos.c	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,1852 @@
+/*----------------------------------------------------------------------------
+|  Project :  3G PS
+|  Module  :  SM
++-----------------------------------------------------------------------------
+|             Copyright 2003 Texas Instruments.
+|             All rights reserved. 
+| 
+|             This file is confidential and a trade secret of Texas 
+|             Instruments .
+|             The receipt of or possession of this file does not convey 
+|             any rights to reproduce or disclose its contents or to 
+|             manufacture, use, or sell anything it may describe, in 
+|             whole, or in part, without the specific written consent of 
+|             Texas Instruments. 
++-----------------------------------------------------------------------------
+| Purpose:    3G QoS utility functions implementation in the SM entity.
+|             For design details, see:
+|             8010.908 SM Detailed Specification
++---------------------------------------------------------------------------*/
+
+/*==== DECLARATION CONTROL =================================================*/
+
+/*==== INCLUDES =============================================================*/
+
+#include "sm.h"
+
+#include "sm_qos.h"
+
+/*==== CONST ================================================================*/
+
+struct qos_from_to {
+  U32        integer;
+  struct {
+    U16      ratio_mant, ratio_exp;
+  }          ratio;
+  U8         packed;
+};
+
+/*@checked@*/
+static const struct qos_from_to sm_qos_ber_table[] = {
+  {      20UL, {(U16)5,(U16)2}, (U8)M_SM_QOS_BER_5E_2},
+  {     100UL, {(U16)5,(U16)2}, (U8)M_SM_QOS_BER_1E_2},
+  {     200UL, {(U16)5,(U16)3}, (U8)M_SM_QOS_BER_5E_3},
+  {     250UL, {(U16)4,(U16)3}, (U8)M_SM_QOS_BER_4E_3},
+  {    1000UL, {(U16)1,(U16)3}, (U8)M_SM_QOS_BER_1E_3},
+  {   10000UL, {(U16)1,(U16)4}, (U8)M_SM_QOS_BER_1E_4},
+  {  100000UL, {(U16)1,(U16)5}, (U8)M_SM_QOS_BER_1E_5},
+  { 1000000UL, {(U16)1,(U16)6}, (U8)M_SM_QOS_BER_1E_6},
+  {16666667UL, {(U16)6,(U16)8}, (U8)M_SM_QOS_BER_6E_8},
+  {       0UL, {(U16)0,(U16)0}, (U8)M_SM_QOS_BER_SUB}
+};
+
+/*@checked@*/
+static const struct qos_from_to sm_qos_sdu_err_ratio_table[] = {
+  {      10UL, {(U16)1,(U16)1}, (U8)M_SM_QOS_SDU_ERR_1E_1}, /* NOTE: M_SM_QOS_SDU_ERR_1E_1 == 7 */
+  {     100UL, {(U16)1,(U16)2}, (U8)M_SM_QOS_SDU_ERR_1E_2},
+  {     143UL, {(U16)7,(U16)3}, (U8)M_SM_QOS_SDU_ERR_7E_3},
+  {    1000UL, {(U16)1,(U16)3}, (U8)M_SM_QOS_SDU_ERR_1E_3},
+  {   10000UL, {(U16)1,(U16)4}, (U8)M_SM_QOS_SDU_ERR_1E_4},
+  {  100000UL, {(U16)1,(U16)5}, (U8)M_SM_QOS_SDU_ERR_1E_5},
+  { 1000000UL, {(U16)1,(U16)6}, (U8)M_SM_QOS_SDU_ERR_1E_6},
+  {       0UL, {(U16)0,(U16)0}, (U8)M_SM_QOS_SDU_ERR_SUB}
+};
+
+/*
+ * Conversion table for 1/n in T_ratio.
+ * Contains 1/n * 1E9 entries used for scaling.
+ */
+/*@checked@*/
+static const U32 sm_qos_ratio_table[10] = {
+           0UL,
+  1000000000UL,  /* 1E9 / 1 */
+   500000000UL,  /* 1E9 / 2 */
+   333333333UL,  /* 1E9 / 3 */
+   250000000UL,  /* 1E9 / 4 */
+   200000000UL,  /* 1E9 / 5 */
+   166666667UL,  /* 1E9 / 6 */
+   142857143UL,  /* 1E9 / 7 */
+   125000000UL,  /* 1E9 / 8 */
+   111111111UL   /* 1E9 / 9 */
+};
+
+/*==== LOCAL VARS ===========================================================*/
+
+/*==== PRIVATE FUNCTIONS ====================================================*/
+
+/* Conversion function: ratio to integer */
+static U32 sm_qos_ratio_to_U32(U8 ratio_mant, U8 ratio_exp)
+     /*@globals sm_qos_ratio_table@*/
+{
+  U32   value;
+  int   count;
+
+  /* Error checks */
+  if (ratio_exp > (U8)9)
+  {
+    (void)TRACE_ERROR( "QoS ratio exponent parameter out of bounds!" );
+    return 0;
+  } else if (ratio_mant > (U8)9) {
+    (void)TRACE_ERROR( "QoS ratio mantissa parameter out of bounds!" );
+    return 0;
+  } else if (ratio_exp == (U8)9 && ratio_mant < (U8)5) {
+    (void)TRACE_ERROR( "QoS ratio parameter exceeds data type range!" );
+    return 0;
+  } else {
+    for (count = 9-(int)ratio_exp, value = 1UL; count > 0; count--) {
+      value *= 10;
+    }
+    /* Get real value by rounding 1/x and dividing by 10^(9-ratio_exp) */
+    value = (sm_qos_ratio_table[(U16)ratio_mant] + (value >> 1)) / value;
+
+    return value;
+  }
+}
+
+static U8 sm_qos_ratio_to_r99aim(const struct qos_from_to *table,
+                                 U8 ratio_mant, U8 ratio_exp)
+     /*@globals sm_qos_ratio_table@*/
+{
+  int   index;
+  U32   value;
+
+  /* Check for zero / subscribed parameter */
+  if (ratio_mant == (U8)0)
+  {
+    return (U8)M_SM_QOS_BER_SUB;
+  }
+
+  value = sm_qos_ratio_to_U32(ratio_mant, ratio_exp);
+
+  /* Find the smallest matching table entry that is >= value */
+  for (index = 0;
+       table[index].integer != 0 && table[index].integer < value;
+       index++)
+    {};
+
+  return (table[index].packed);
+}
+
+static void sm_qos_r99aim_to_ratio(const struct qos_from_to *table,
+                                   U8 packed_ratio,
+                                   /*@out@*/U8 *ratio_mant,
+                                   /*@out@*/U8 *ratio_exp)
+     /*@modifies *ratio_mant, *ratio_exp@*/
+{
+  int   index;
+
+  for (index = 0;
+       table[index].integer != 0 && packed_ratio != table[index].packed;
+       index++)
+    {};
+
+  *ratio_mant   = (U8)table[index].ratio.ratio_mant;
+  *ratio_exp    = (U8)table[index].ratio.ratio_exp;
+}
+
+static U32 sm_qos_r99aim_ratio_to_U32(const struct qos_from_to *table,
+                                      U8 packed_ratio)
+{
+  int   index;
+
+  for (index = 0;
+       table[index].integer != 0 && packed_ratio != table[index].packed;
+       index++)
+    {};
+
+  return (table[index].integer);
+}
+
+/* Helper function for converting "human readable" bit-rate values into
+ * packed 3G air interface equvalents.
+ *
+ * Parameters:  Integer representation of the bit-rate
+ * Returns:     Packed bit-rate value
+ *
+ * Conversion rules according to [3G 24.008, sec 11.5.6.5]
+ */
+
+static U8 sm_qos_bitrate_to_r99aim(U16 bitrate) /*@*/
+{
+  U8    result = (U8)0;
+
+  if (bitrate < (U16)64) {
+    /* 1 - 63 kbps map to values 1 - 63 @ 1kbps increments*/
+    result = (U8)bitrate;
+  } else if (bitrate < (U16)576) {
+    /* 64 - 568 kbps map to values 64 - 127 @ 8kbps increments.
+     * Values not on boundaries are rounded up.
+     * Formula: result = ((bitrate + 7) / 8) + (64 - (64 / 8)) */
+    result = (U8)((U16)(bitrate + ((64 * 8) - 64 + 7)) >> 3);
+  } else if (bitrate < (U16)8640) {
+    /* 576 - 8640 kbps map to values 128 - 254 @ 64kbps increments.
+     * Values not on boundaries are rounded up.
+     * Formula: result = ((bitrate + 63) / 64) + (128 - (576 / 64)) */
+    result = (U8)((U16)(bitrate + ((128 * 64) - 576 + 63)) >> 6);
+  } else {
+    /* Error */
+    (void)TRACE_EVENT( "Warning: Bitrate parameter out of bounds! Truncated..." );
+    result = (U8)254;
+  }
+  return result;
+}
+
+/* Helper function for converting packed 3G air interface bit-rate values
+ * into "human readable" equvalents.
+ *
+ * Parameters:  Packed bit-rate value
+ * Returns:     Integer representation of the bit-rate
+ *
+ * Conversion rules according to [3G 24.008, sec 11.5.6.5]
+ */
+
+static U16 sm_qos_r99aim_to_bitrate(U8 packed_bitrate) /*@*/
+{
+  U16   bitrate = 0;
+
+  if (packed_bitrate < (U8)64) {
+    bitrate = (U16)packed_bitrate;
+  } else if (packed_bitrate < (U8)128) {
+    bitrate = (U16)((packed_bitrate - (U8)56) << 3);
+  } else if (packed_bitrate < (U8)255) {
+    bitrate = (U16)((packed_bitrate - (U8)119) << 6);
+  } else {
+    bitrate = 0;
+  }
+  return bitrate;
+}
+
+/* Helper function for converting "human readable" max SDU size values into
+ * packed 3G air interface equvalents.
+ *
+ * Parameters:  Integer representation of the SDU size
+ * Returns:     Packed SDU size value
+ *
+ * Conversion rules according to [3G 24.008, sec 11.5.6.5]
+ */
+
+static U8 sm_qos_max_sdu_to_r99aim(U16 sdu_size) /*@*/
+{
+  U8    result = (U8)0;
+
+  if (sdu_size == (U16)PS_MAX_SDU_SUB) {
+    result = (U8)PS_MAX_SDU_SUB;
+  } else if (sdu_size <= (U16)1500) {/* Round up to nearest multiple of 10 and divide by 10. */
+    result = (U8)((sdu_size + 9) / 10);
+  } else if (sdu_size <= (U16)1502) {/* Round 1501-1502 to 1502. */
+    result = (U8)PS_MAX_SDU_1502;
+  } else if (sdu_size <= (U16)1510) {/* Round 1503-1510 to 1510. */
+    result = (U8)PS_MAX_SDU_1510;
+  } else if (sdu_size <= (U16)1520) {/* Round 1511-1520 to 1520. */
+    result = (U8)PS_MAX_SDU_1520;
+  } else {                      /* > 1520: We are forgiving and just truncate to 1520 */
+    result = (U8)PS_MAX_SDU_1520;
+    (void)TRACE_EVENT( "Warning: Max SDU size specified > 1520! Truncated..." );
+  }
+  return result;
+}
+
+/*
+ * Helper function for converting packed 3G air interface max SDU size values
+ * into "human readable" equvalents.
+ *
+ * Parameters:  Packed max SDU value
+ * Returns:     Integer representation of the SDU size
+ *
+ * Conversion rules according to [3G 24.008, sec 11.5.6.5]
+ */
+
+static U16 sm_qos_r99aim_to_max_sdu(U8 packed_sdu_size) /*@*/
+{
+  U16   result = 0;
+
+  if (packed_sdu_size < (U8)PS_MAX_SDU_1502) {
+    result = (U16)packed_sdu_size * (U16)10;
+  } else if (packed_sdu_size == (U8)PS_MAX_SDU_1502) {
+    result = (U16)1502;
+  } else if (packed_sdu_size == (U8)PS_MAX_SDU_1510) {
+    result = (U16)1510;
+  } else if (packed_sdu_size == (U8)PS_MAX_SDU_1520) {
+    result = (U16)1520;
+  } else {                      /* Error handling ? */
+    result = (U16)1520;
+    (void)TRACE_EVENT( "Warning: Packed max SDU size value > 153 (1520 octets)!  Truncated...");
+  }
+  return result;
+}
+
+/*
+ * Helper function for converting "human readable" transfer delay values
+ * into packed 3G air interface equvalents.
+ *
+ * Parameters:  Integer representation of the transfer delay
+ * Returns:     Packed transfer delay value
+ *
+ * Conversion rules according to [3G 24.008, sec 11.5.6.5]
+ */
+
+static U8 sm_qos_xfer_delay_to_r99aim(U16 xfer_delay) /*@*/
+{
+  U8    result = (U8)0;
+
+  if (xfer_delay == 0) {
+    result = (U8)0;
+  } else if (xfer_delay < (U16)10) { /* Make sure low values do not map to SUBSCRIBED */
+    result = (U8)1;
+  } else if (xfer_delay <= (U16)150) {
+    /* 10 - 150ms map to values 1 - 15 @ 10ms increments. We round down. */
+    result = (U8)(xfer_delay / 10);
+  } else if (xfer_delay <= (U16)1000) {
+    /* 200 - 950ms map to values 16 - 31 @ 50ms increments.
+     * Values not on boundaries are rounded down.
+     * Formula: result = (xfer_delay / 50) + (16 - (200 / 50)) */
+    result = (U8)((xfer_delay + ((16 * 50) - 200)) / 50);
+  } else if (xfer_delay <= (U16)4000) {
+    /* 1000 - 4000ms map to values 32-62 @ 100ms increments.
+     * Values not on boundaries are rounded down.
+     * Formula: result = (xfer_delay / 100) + (32 - (1000 / 100)) */
+    result = (U8)((xfer_delay + ((32 * 100) - 1000)) / 100);
+  } else {
+    /* Error */
+    (void)TRACE_EVENT( "Warning: Transfer delay out of bounds! Truncated..." );
+    result = (U8)62;
+  }
+  return result;
+}
+
+/*
+ * Helper function for converting packed 3G air interface transfer delay values
+ * into "human readable" equvalents.
+ *
+ * Parameters:  Packed transfer delay value
+ * Returns:     Integer representation of the transfer delay
+ *
+ * Conversion rules according to [3G 24.008, sec 11.5.6.5]
+ */
+
+static U16 sm_qos_r99aim_to_xfer_delay(U8 packed_xfer_delay) /*@*/
+{
+  U16   result = 0;
+
+  if (packed_xfer_delay == (U8)0) {
+    result = (U16)PS_XFER_DELAY_SUB;
+  } else if (packed_xfer_delay < (U8)16) {
+    result = (U16)packed_xfer_delay * (U16)10;
+  } else if (packed_xfer_delay < (U8)32) {
+    result = ((U16)packed_xfer_delay - (U16)12) * (U16)50;
+  } else if (packed_xfer_delay < (U8)63) {
+    result = ((U16)packed_xfer_delay - (U16)22) * (U16)100;
+  } else {
+    result = (U16)4000;
+    (void)TRACE_EVENT( "Warning: R99 transfer delay parameter out of bounds (== 63)! Truncated..." );
+  }
+
+  return result;
+}
+
+/*
+ * Helper function for converting packed 3G air interface traffic class values
+ * into AT command equivalents as per [3G 27.007].
+ *
+ * Parameters:  Packed traffic class value
+ * Returns:     AT command representation of the same traffic class value
+ */
+static U8 sm_qos_r99aim_to_tc(U8 packed_tc) /*@*/
+{
+  switch (packed_tc) {
+  case M_SM_QOS_TC_CONV:          return (U8)PS_TC_CONV;
+  case M_SM_QOS_TC_STREAM:        return (U8)PS_TC_STREAM;
+  case M_SM_QOS_TC_INTER:         return (U8)PS_TC_INTER;
+  case M_SM_QOS_TC_BG:            return (U8)PS_TC_BG;
+  default:
+    (void)TRACE_EVENT_P1("Warning: AIM traffic class '%d' out of bounds! Defaulting to SUBSCRIBED...", packed_tc);
+    return (U8)PS_TC_SUB;
+  }
+}
+
+/*
+ * Helper function for converting AT command traffic class values
+ * into packed 3G air interface equivalents.
+ *
+ * Parameters:  AT command traffic class value
+ * Returns:     3G AIM representation of the same traffic class value
+ */
+static U8 sm_qos_tc_to_r99aim(U8 tc) /*@*/
+{
+  switch (tc) {
+  case PS_TC_CONV:               return (U8)M_SM_QOS_TC_CONV;
+  case PS_TC_STREAM:             return (U8)M_SM_QOS_TC_STREAM;
+  case PS_TC_INTER:              return (U8)M_SM_QOS_TC_INTER;
+  case PS_TC_BG:                 return (U8)M_SM_QOS_TC_BG;
+  case PS_TC_SUB:                return (U8)M_SM_QOS_TC_SUB;
+  default:
+    (void)TRACE_EVENT_P1("ERROR: QoS traffic class '%d' out of bounds! Defaulting to SUBSCRIBED, but expect an imminent crash!", tc);
+    return (U8)M_SM_QOS_TC_SUB;
+  }
+}
+
+/*
+ * Helper function for converting packed 3G air interface delivery order
+ * parameter values into AT command equivalents as per [3G 27.007].
+ *
+ * Parameters:  Packed delivery order parameter
+ * Returns:     AT command representation of the same delivery order value
+ */
+static U8 sm_qos_r99aim_to_order(U8 packed_order) /*@*/
+{
+  switch (packed_order) {
+  case M_SM_QOS_ORDER_NO:         return (U8)PS_ORDER_NO;
+  case M_SM_QOS_ORDER_YES:        return (U8)PS_ORDER_YES;
+  default:
+    (void)TRACE_EVENT_P1("Warning: AIM delivery order parameter '%d' out of bounds! Defaulting to SUBSCRIBED...", packed_order);
+    return (U8)PS_ORDER_SUB;
+  }
+}
+
+/*
+ * Helper function for converting AT command delivery order parameter values
+ * into packed 3G air interface equivalents.
+ *
+ * Parameters:  AT command delivery order parameter
+ * Returns:     Packed 3G AIM representation of the same delivery order value
+ */
+static U8 sm_qos_order_to_r99aim(U8 order) /*@*/
+{
+  switch (order) {
+  case PS_ORDER_NO:              return (U8)M_SM_QOS_ORDER_NO;
+  case PS_ORDER_YES:             return (U8)M_SM_QOS_ORDER_YES;
+  case PS_ORDER_SUB:             return (U8)M_SM_QOS_ORDER_SUB;
+  default:
+    (void)TRACE_EVENT_P1("Warning: Delivery order parameter '%d' out of bounds! Defaulting to SUBSCRIBED...", order);
+    return (U8)M_SM_QOS_ORDER_SUB;
+  }
+}
+
+/*
+ * Helper function for converting packed 3G air interface "delivery of
+ * erroneous SDUs" parameter values into AT command equivalents as per
+ * [3G 27.007].
+ *
+ * Parameters:  Packed delivery parameter
+ * Returns:     AT command representation of the same delivery parameter
+ */
+static U8 sm_qos_r99aim_to_del_err_sdu(U8 packed_del_err_sdu) /*@*/
+{
+  switch (packed_del_err_sdu) {
+  case M_SM_QOS_DEL_ERR_NO:       return (U8)PS_DEL_ERR_NO;
+  case M_SM_QOS_DEL_ERR_YES:      return (U8)PS_DEL_ERR_YES;
+  case M_SM_QOS_DEL_ERR_NODETECT: return (U8)PS_DEL_ERR_NODETECT;
+  default:
+    (void)TRACE_EVENT_P1("Warning: AIM delivery of err SDU parameter '%d' out of bounds! Defaulting to SUBSCRIBED", packed_del_err_sdu);
+    return (U8)PS_DEL_ERR_SUB;
+  }
+}
+
+/*
+ * Helper function for converting AT command "delivery of erroneous SDUs"
+ * parameter values into packed 3G air interface equivalents.
+ *
+ * Parameters:  AT command delivery parameter
+ * Returns:     Packed 3G AIM representation of the same delivery value
+ */
+static U8 sm_qos_del_err_sdu_to_r99aim(U8 del_err_sdu) /*@*/
+{
+  switch (del_err_sdu) {
+  case PS_DEL_ERR_NO:            return (U8)M_SM_QOS_DEL_ERR_NO;
+  case PS_DEL_ERR_YES:           return (U8)M_SM_QOS_DEL_ERR_YES;
+  case PS_DEL_ERR_NODETECT:      return (U8)M_SM_QOS_DEL_ERR_NODETECT;
+  case PS_DEL_ERR_SUB:           return (U8)M_SM_QOS_DEL_ERR_SUB;
+  default:
+    (void)TRACE_EVENT_P1("Warning: Delivery of err SDU parameter '%d' out of bounds! Defaulting to SUBSCRIBED...", del_err_sdu);
+    return (U8)M_SM_QOS_DEL_ERR_SUB;
+  }
+}
+
+/*
+ * Function for converting a R97 QoS parameter set in SM internal representation
+ * into a 3G air message QoS parameter set.
+ *
+ * Conversion rules according to [3G 24.008, sec 10.5.6.5]
+ *
+ * Parameters:  Originating R97 SM QoS parameter struct
+ *              Destination R97/R99 3G QoS parameter struct (overwritten in this function)
+ */
+
+static void sm_qos_convert_r97_to_aim(/*@in@*/ T_PS_qos_r97  *src_qos_r97,
+                                      /*@out@*/T_M_SM_qos     *dst_qos)
+     /*@modifies dst_qos->qos_r97@*/
+{
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_convert_r97_to_aim" );
+#endif
+
+  dst_qos->qos_r97.delay       = src_qos_r97->delay;
+  dst_qos->qos_r97.reliability = src_qos_r97->relclass;
+  dst_qos->qos_r97.peak        = src_qos_r97->peak;
+  dst_qos->qos_r97.precedence  = src_qos_r97->preced;
+  dst_qos->qos_r97.mean        = src_qos_r97->mean;
+}
+
+static void sm_qos_convert_r97aim_to_r97(/*@in@*/ T_M_SM_qos_r97 *src_qos,
+                                         /*@out@*/T_PS_qos_r97  *dst_qos_r97)
+     /*@modifies dst_qos_r97@*/
+{
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_convert_r97aim_to_r97" );
+#endif
+
+  dst_qos_r97->delay           = src_qos->delay;
+  dst_qos_r97->relclass        = src_qos->reliability;
+  dst_qos_r97->peak            = src_qos->peak;
+  dst_qos_r97->preced          = src_qos->precedence;
+  dst_qos_r97->mean            = src_qos->mean;
+}
+
+/*
+ * Function for converting a R99 QoS parameter set in SM internal representation
+ * into a 3G air message QoS parameter set.
+ *
+ * Conversion rules according to [3G 24.008, sec 10.5.6.5]
+ *
+ * Parameters:  Originating R99 SM QoS parameter struct
+ *              Destination R99 3G QoS parameter struct (overwritten in this function)
+ */
+
+static void sm_qos_convert_r99_to_aim(/*@in@*/ T_PS_qos_r99 *src_qos_r99,
+                                      /*@out@*/T_M_SM_qos    *dst_qos)
+ /*@globals sm_qos_ber_table, sm_qos_sdu_err_ratio_table, sm_qos_ratio_table@*/
+ /*@modifies dst_qos->qos_r99@*/
+{
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_convert_r99_to_aim" );
+#endif
+
+  /* Traffic class */
+  dst_qos->qos_r99.tc          = sm_qos_tc_to_r99aim(src_qos_r99->tc);
+
+  /* Delivery order */
+  dst_qos->qos_r99.order       = sm_qos_order_to_r99aim(src_qos_r99->order);
+
+  /* Delivery of erroneous SDUs */
+  dst_qos->qos_r99.del_err_sdu = sm_qos_del_err_sdu_to_r99aim(src_qos_r99->del_err_sdu);
+
+  /* Max SDU size */
+  dst_qos->qos_r99.max_sdu     = sm_qos_max_sdu_to_r99aim(src_qos_r99->max_sdu);
+
+  /* Max uplink bit-rate */
+  dst_qos->qos_r99.max_br_ul   = sm_qos_bitrate_to_r99aim(src_qos_r99->max_rate_ul);
+
+  /* Max downlink bit-rate */
+  dst_qos->qos_r99.max_br_dl   = sm_qos_bitrate_to_r99aim(src_qos_r99->max_rate_dl);
+
+  /* Residual BER */
+  dst_qos->qos_r99.ber         = sm_qos_ratio_to_r99aim(sm_qos_ber_table,
+                                   src_qos_r99->ber.ratio_mant,
+                                   src_qos_r99->ber.ratio_exp);
+
+  /* SDU error ratio */
+  dst_qos->qos_r99.sdu_err_ratio = sm_qos_ratio_to_r99aim(sm_qos_sdu_err_ratio_table,
+                                   src_qos_r99->sdu_err_ratio.ratio_mant,
+                                   src_qos_r99->sdu_err_ratio.ratio_exp);
+
+  /* Transfer delay */
+  dst_qos->qos_r99.xfer_delay  = sm_qos_xfer_delay_to_r99aim(src_qos_r99->xfer_delay);
+
+  /* Traffic handling priority */
+  dst_qos->qos_r99.handling_pri= src_qos_r99->handling_pri;
+
+  /* Guaranteed uplink bit-rate */
+  dst_qos->qos_r99.guar_br_ul  = sm_qos_bitrate_to_r99aim(src_qos_r99->guar_br_ul);
+
+  /* Guaranteed downlink bit-rate */
+  dst_qos->qos_r99.guar_br_dl  = sm_qos_bitrate_to_r99aim(src_qos_r99->guar_br_dl);
+}
+
+/*
+ * Function for converting a R99 3G air message QoS parameter set into a
+ * R99 QoS parameter set in SM internal representation
+ *
+ * Conversion rules according to [3G 24.008, sec 10.5.6.5]
+ *
+ * Parameters:  Originating R99 3G QoS parameter struct
+ *              Destination R99 SM QoS parameter struct (overwritten in this function)
+ */
+
+static void sm_qos_convert_r99aim_to_r99(/*@in@*/ T_M_SM_qos_r99 *src_qos_r99,
+                                         /*@out@*/T_PS_qos_r99  *dst_qos_r99)
+ /*@globals sm_qos_ber_table, sm_qos_sdu_err_ratio_table@*/
+ /*@modifies dst_qos_r99@*/
+{
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_convert_r99aim_to_r99" );
+#endif
+
+  /* Traffic class */
+  dst_qos_r99->tc          = sm_qos_r99aim_to_tc(src_qos_r99->tc);
+
+  /* Delivery order */
+  dst_qos_r99->order       = sm_qos_r99aim_to_order(src_qos_r99->order);
+
+  /* Delivery of erroneous SDUs */
+  dst_qos_r99->del_err_sdu = sm_qos_r99aim_to_del_err_sdu(src_qos_r99->del_err_sdu);
+
+  /* Max SDU size */
+  dst_qos_r99->max_sdu     = sm_qos_r99aim_to_max_sdu(src_qos_r99->max_sdu);
+
+  /* Max uplink bit-rate */
+  dst_qos_r99->max_rate_ul = sm_qos_r99aim_to_bitrate(src_qos_r99->max_br_ul);
+
+  /* Max downlink bit-rate */
+  dst_qos_r99->max_rate_dl = sm_qos_r99aim_to_bitrate(src_qos_r99->max_br_dl);
+
+  /* Residual BER */
+  sm_qos_r99aim_to_ratio(sm_qos_ber_table, src_qos_r99->ber,
+                      &dst_qos_r99->ber.ratio_mant,
+                      &dst_qos_r99->ber.ratio_exp);
+
+  /* SDU error ratio */
+  sm_qos_r99aim_to_ratio(sm_qos_sdu_err_ratio_table, src_qos_r99->sdu_err_ratio,
+                      &dst_qos_r99->sdu_err_ratio.ratio_mant,
+                      &dst_qos_r99->sdu_err_ratio.ratio_exp);
+
+  /* Transfer delay */
+  dst_qos_r99->xfer_delay  = sm_qos_r99aim_to_xfer_delay(src_qos_r99->xfer_delay);
+
+  /* Traffic handling priority */
+  dst_qos_r99->handling_pri = src_qos_r99->handling_pri;
+
+  /* Guaranteed uplink bit-rate */
+  dst_qos_r99->guar_br_ul  = sm_qos_r99aim_to_bitrate(src_qos_r99->guar_br_ul);
+
+  /* Guaranteed downlink bit-rate */
+  dst_qos_r99->guar_br_dl  = sm_qos_r99aim_to_bitrate(src_qos_r99->guar_br_dl);
+}
+
+/*==== PUBLIC FUNCTIONS =====================================================*/
+
+/*
+ * Function for extracting the traffic class element stored for
+ * the given context.
+ */
+U8 sm_qos_get_traffic_class(struct T_SM_CONTEXT_DATA *context)
+{
+   /*lint -e613 (Possible use of null pointer 'context' in left argument to operator '->') */
+  TRACE_ASSERT(context != NULL);
+ 
+  if (context->requested_qos.ctrl_qos == PS_is_R97) {
+    T_PS_qos_r99 temp_qos;
+
+    (void)cl_qos_convert_r97_to_r99(&context->requested_qos.qos.qos_r97,
+                                        &temp_qos);
+
+    return temp_qos.tc;
+  }
+  else if (context->requested_qos.ctrl_qos == PS_is_R99) {
+    return context->requested_qos.qos.qos_r99.tc;
+  }
+  else {
+    /* Default to SUBSCRIBED */
+    return (U8)PS_TC_SUB;
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_convert_to_aim
++------------------------------------------------------------------------------
+| Description : Function for converting a QoS parameter set in internal SM
+|               representation into an air interface QoS parameter set.
+|               Handles both R97 and R99 types, skipping R99 elements if
+|               network is R97.
+|
+| Parameters  : src_qos          - Source QoS (internal representation)
+|               dst_qos          - Destination air interface QoS structure
+|               release          - Core network release (R97/R99)
++------------------------------------------------------------------------------
+*/
+void sm_qos_convert_to_aim(/*@in@*/ T_SM_qos   *src_qos,
+                           /*@out@*/T_M_SM_qos *dst_qos,
+                           T_PS_sgsn_rel        release)
+ /*@globals sm_qos_ber_table, sm_qos_sdu_err_ratio_table, sm_qos_ratio_table@*/
+{
+  
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION("sm_qos_convert_to_aim");
+#endif
+
+  /* Is SGSN release = pre-R99 (or R98 and older) ? */
+  if (release == PS_SGSN_98_OLDER) {
+    if (src_qos->ctrl_qos == PS_is_R97) {
+      sm_qos_convert_r97_to_aim(&src_qos->qos.qos_r97, dst_qos);
+    } else if (src_qos->ctrl_qos == PS_is_R99) {
+      /* Convert R99 to R97 values */
+      T_PS_qos_r97  tmp_qos_r97;
+      cl_qos_convert_r99_to_r97(&src_qos->qos.qos_r99, &tmp_qos_r97);
+      sm_qos_convert_r97_to_aim(&tmp_qos_r97, dst_qos);
+    } else {
+      (void)TRACE_ERROR( "Invalid ctrl_qos value!" );
+    }
+    /* Do not include R99 QoS elements in air interface message */
+    dst_qos->v_qos_r99 = (U8)FALSE;
+    dst_qos->tlv_len   = (U8)M_SM_SIZE_R97_QOS;
+  } else if (release == PS_SGSN_99_ONWARDS) {
+    if (src_qos->ctrl_qos == PS_is_R97) {
+      T_PS_qos_r99  tmp_qos;
+      /* Convert R97 to R99 struct */
+      (void)cl_qos_convert_r97_to_r99(&src_qos->qos.qos_r97, &tmp_qos);
+      /* Include both R97 and R99 QoS info in AIM */
+      sm_qos_convert_r97_to_aim(&src_qos->qos.qos_r97, dst_qos);
+      sm_qos_convert_r99_to_aim(&tmp_qos, dst_qos);
+    } else if (src_qos->ctrl_qos == PS_is_R99) {
+      T_PS_qos_r97  tmp_qos_r97;
+      /* Fill in R99 AIM fields */
+      sm_qos_convert_r99_to_aim(&src_qos->qos.qos_r99, dst_qos);
+      /* [3G 24.008] says to always include R97/R98 parameters in QoS IE */
+      cl_qos_convert_r99_to_r97(&src_qos->qos.qos_r99, &tmp_qos_r97);
+      sm_qos_convert_r97_to_aim(&tmp_qos_r97, dst_qos);
+    } else {
+      (void)TRACE_ERROR( "Invalid ctrl_qos value!" );
+    }
+    /* Include R99 QoS elements in air interface message */
+    dst_qos->v_qos_r99 = (U8)TRUE;
+    dst_qos->tlv_len   = (U8)M_SM_SIZE_R99_QOS;
+  } else {
+    (void)TRACE_EVENT_P1("ERROR: Invalid network release union controller %d!",
+                         release);
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_assign_from_aim
++------------------------------------------------------------------------------
+| Description : Function for converting an air interface QoS parameter set
+|               to internal SM representation.  Handles both R97 and R99 types,
+|               and sets the destination QoS union controller to the R97/R99
+|               type of the air interface message.
+|
+| Parameters  : dst_qos          - Destination QoS (internal representation)
+|               src_qos          - Source air interface QoS structure
++------------------------------------------------------------------------------
+*/
+void sm_qos_assign_from_aim(/*@out@*/T_SM_qos   *dst_qos,
+                            /*@in@*/ T_M_SM_qos *src_qos)
+ /*@globals sm_qos_ber_table, sm_qos_sdu_err_ratio_table@*/
+{
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_assign_from_aim");
+#endif
+
+  /* Does QoS include R99 elements? */
+  if (src_qos->v_qos_r99 == (U8)FALSE) {
+    /* FALSE == No R99 elements present; Set type to R97 */
+    dst_qos->ctrl_qos = PS_is_R97;
+    sm_qos_convert_r97aim_to_r97(&src_qos->qos_r97, &dst_qos->qos.qos_r97);
+  } else {
+    /* TRUE == R99 elements present; Set type to R99 */
+    dst_qos->ctrl_qos = PS_is_R99;
+    sm_qos_convert_r99aim_to_r99(&src_qos->qos_r99, &dst_qos->qos.qos_r99);
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_compare_r97_lt_r97
++------------------------------------------------------------------------------
+| Description : Compares an R97 QoS structure with another (minimum) R97 QoS
+|               structure in internal SM representation.  Returns TRUE if
+|               the supplied QoS is *less than* minimum QoS.
+| Parameters  : cmp_qos_r97      - comparison QoS structure
+|               min_qos_r97      - minimum QoS structure
++------------------------------------------------------------------------------
+*/
+/* NOTE:  Removed.  sm-to-sm comparisons only occur during MO modify
+ * procedures, which are not possible in R97.*/
+#if 0
+static BOOL sm_qos_compare_r97_lt_r97(/*@in@*/T_PS_qos_r97 *cmp_qos_r97,
+                                      /*@in@*/T_PS_qos_r97 *min_qos_r97)
+{
+  (void)TRACE_FUNCTION( "sm_qos_compare_r97aim_lt_r97");
+
+  if (min_qos_r97->delay       != (U8)NAS_DELAY_SUB &&
+      cmp_qos_r97->delay       > min_qos_r97->delay)
+  {
+    (void)TRACE_EVENT_P2("R97 DELAY parameter insufficient: %d > %d (min_qos)",
+                         cmp_qos_r97->delay, min_qos_r97->delay);
+    return TRUE;
+  }
+  if (min_qos_r97->relclass    != (U8)NAS_RELCLASS_SUB &&
+      cmp_qos_r97->relclass    > min_qos_r97->relclass)
+  {
+    (void)TRACE_EVENT_P2("R97 RELIABILITY CLASS parameter insufficient: "
+                         "%d > %d (min_qos)",
+                         cmp_qos_r97->relclass, min_qos_r97->relclass);
+    return TRUE;
+  }
+  if (min_qos_r97->peak        != (U8)NAS_PEAK_SUB &&
+      cmp_qos_r97->peak        < min_qos_r97->peak)
+  {
+    (void)TRACE_EVENT_P2("R97 PEAK BITRATE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         cmp_qos_r97->peak, min_qos_r97->peak);
+    return TRUE;
+  }
+  if (min_qos_r97->preced      != (U8)NAS_PRECED_SUB &&
+      cmp_qos_r97->preced      > min_qos_r97->preced)
+  {
+    (void)TRACE_EVENT_P2("R97 PRECEDENCE CLASS parameter insufficient: "
+                         "%d > %d (min_qos)",
+                         cmp_qos_r97->preced, min_qos_r97->preced);
+    return TRUE;
+  }
+  if (min_qos_r97->mean        != (U8)NAS_MEAN_SUB &&
+      cmp_qos_r97->mean        < min_qos_r97->mean)
+  {
+    (void)TRACE_EVENT_P2("R97 MEAN BITRATE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         cmp_qos_r97->mean, min_qos_r97->mean);
+    return TRUE;
+  }
+  return FALSE;
+}
+#endif
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_compare_r99_lt_r99
++------------------------------------------------------------------------------
+| Description : Compares an R99 QoS structure with a (minimum) R99 QoS
+|               structure in internal SM representation.  Returns TRUE if
+|               comparison QoS is *less than* minimum QoS.
+| Parameters  : cmp_qos_r99      - air interface QoS structure
+|               min_qos_r99      - minimum QoS structure
++------------------------------------------------------------------------------
+*/
+static BOOL sm_qos_compare_r99_lt_r99(/*@in@*/T_PS_qos_r99 *cmp_qos_r99,
+                                      /*@in@*/T_PS_qos_r99 *min_qos_r99)
+{
+  T_PS_tc  traffic_class = (T_PS_tc)cmp_qos_r99->tc;
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_compare_r99_lt_r99");
+#endif
+
+  /* Traffic class */
+  if ((min_qos_r99->tc != (U8)PS_TC_SUB) &&
+      (cmp_qos_r99->tc > min_qos_r99->tc))
+  {
+    (void)TRACE_EVENT_P2("R99 TRAFFIC CLASS parameter insufficient: "
+                         "%d > %d (min_qos)",
+                         cmp_qos_r99->tc, min_qos_r99->tc);
+    return TRUE;
+  }
+
+  /* Delivery order */
+  if ((min_qos_r99->order != (U8)PS_ORDER_SUB) &&
+      (cmp_qos_r99->order != min_qos_r99->order))
+  {
+    (void)TRACE_EVENT_P2("R99 DELIVERY ORDER parameter insufficient: "
+                         "%d != %d (min_qos)",
+                         cmp_qos_r99->order, min_qos_r99->order);
+    return TRUE;
+  }
+
+  /* Delivery of erroneous SDUs */
+  if ((min_qos_r99->del_err_sdu != (U8)PS_DEL_ERR_SUB) &&
+      (cmp_qos_r99->del_err_sdu != min_qos_r99->del_err_sdu))
+  {
+    (void)TRACE_EVENT_P2("R99 DELIVERY of ERRONEUOS SDUs parameter "
+                         "insufficient: %d != %d (min_qos)",
+                         cmp_qos_r99->del_err_sdu, min_qos_r99->del_err_sdu);
+    return TRUE;
+  }
+
+  /* Max SDU size */
+  if ((min_qos_r99->max_sdu != (U16)PS_MAX_SDU_SUB) &&
+      (cmp_qos_r99->max_sdu < min_qos_r99->max_sdu))
+  {
+    (void)TRACE_EVENT_P2("R99 MAX SDU SIZE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         cmp_qos_r99->max_sdu, min_qos_r99->max_sdu);
+    return TRUE;
+  }
+
+  /* Max uplink bit-rate */
+  if ((min_qos_r99->max_rate_ul != (U16)PS_MAX_BR_UL_SUB) &&
+      (cmp_qos_r99->max_rate_ul < min_qos_r99->max_rate_ul))
+  {
+    (void)TRACE_EVENT_P2("R99 MAX UPLINK BITRATE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         cmp_qos_r99->max_rate_ul, min_qos_r99->max_rate_ul);
+    return TRUE;
+  }
+
+  /* Max downlink bit-rate */
+  if ((min_qos_r99->max_rate_dl != (U16)PS_MAX_BR_DL_SUB) &&
+      (cmp_qos_r99->max_rate_dl < min_qos_r99->max_rate_dl))
+  {
+    (void)TRACE_EVENT_P2("R99 MAX DOWNLINK BITRATE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         cmp_qos_r99->max_rate_dl, min_qos_r99->max_rate_dl);
+    return TRUE;
+  }
+
+  /* Residual BER */
+  if ((min_qos_r99->ber.ratio_exp != (U8)0
+       && min_qos_r99->ber.ratio_mant != (U8)0) &&
+      (sm_qos_ratio_to_U32(cmp_qos_r99->ber.ratio_mant,
+                           cmp_qos_r99->ber.ratio_exp) <
+       sm_qos_ratio_to_U32(min_qos_r99->ber.ratio_mant,
+                           min_qos_r99->ber.ratio_exp)))
+  {
+    (void)TRACE_EVENT_P4("R99 RESIDUAL BIT ERROR RATE parameter insufficient: "
+                         "%dE-%d < %dE-%d (min_qos)",
+                         cmp_qos_r99->ber.ratio_mant,
+                         cmp_qos_r99->ber.ratio_exp,
+                         min_qos_r99->ber.ratio_mant,
+                         min_qos_r99->ber.ratio_exp);
+    return TRUE;
+  }
+
+  /* SDU error ratio */
+  if ((min_qos_r99->sdu_err_ratio.ratio_exp != (U8)0 &&
+       min_qos_r99->sdu_err_ratio.ratio_mant != (U8)0) &&
+      (sm_qos_ratio_to_U32(cmp_qos_r99->sdu_err_ratio.ratio_mant,
+                           cmp_qos_r99->sdu_err_ratio.ratio_exp) <
+       sm_qos_ratio_to_U32(min_qos_r99->sdu_err_ratio.ratio_mant,
+                           min_qos_r99->sdu_err_ratio.ratio_exp)))
+  {
+    (void)TRACE_EVENT_P4("R99 SDU ERROR RATIO parameter insufficient: "
+                         "%dE-%d < %dE-%d (min_qos)",
+                         cmp_qos_r99->sdu_err_ratio.ratio_mant,
+                         cmp_qos_r99->sdu_err_ratio.ratio_exp,
+                         min_qos_r99->sdu_err_ratio.ratio_mant,
+                         min_qos_r99->sdu_err_ratio.ratio_exp);
+    return TRUE;
+  }
+
+  /* Transfer delay - Note! Only for real-time traffic class traffic! */
+  if ((traffic_class == PS_TC_CONV || traffic_class == PS_TC_STREAM) &&
+      (min_qos_r99->xfer_delay != (U16)PS_XFER_DELAY_SUB) &&
+      (cmp_qos_r99->xfer_delay > min_qos_r99->xfer_delay))
+  {
+    (void)TRACE_EVENT_P2("R99 TRANSFER DELAY parameter insufficient: "
+                         "%d > %d (min_qos)",
+                         cmp_qos_r99->xfer_delay, min_qos_r99->xfer_delay);
+    return TRUE;
+  }
+
+  /* Traffic handling priority - Note: Only interactive traffic class! */
+  if ((traffic_class == PS_TC_INTER) &&
+      (min_qos_r99->handling_pri != (U8)PS_HANDLING_PRI_SUB) &&
+      (cmp_qos_r99->handling_pri > min_qos_r99->handling_pri))
+  {
+    (void)TRACE_EVENT_P2("R99 TRANSFER HANDLING PRIORITY parameter "
+                         "insufficient: %d > %d (min_qos)",
+                         cmp_qos_r99->handling_pri, min_qos_r99->handling_pri);
+    return TRUE;
+  }
+
+  /* Guaranteed uplink bit-rate - Note: Only for real-time traffic class traffic! */
+  if ((traffic_class == PS_TC_CONV || traffic_class == PS_TC_STREAM) &&
+      (min_qos_r99->guar_br_ul != (U16)PS_GUAR_BR_UL_SUB) &&
+      (cmp_qos_r99->guar_br_ul < min_qos_r99->guar_br_ul))
+  {
+    (void)TRACE_EVENT_P2("R99 GUARANTEED UPLINK BITRATE parameter "
+                         "insufficient: %d < %d (min_qos)",
+                         cmp_qos_r99->guar_br_ul, min_qos_r99->guar_br_ul);
+    return TRUE;
+  }
+
+  /* Guaranteed downlink bit-rate  - Note: Only for real-time traffic class traffic! */
+  if ((traffic_class == PS_TC_CONV || traffic_class == PS_TC_STREAM) &&
+      (min_qos_r99->guar_br_dl != (U16)PS_GUAR_BR_DL_SUB) &&
+      (cmp_qos_r99->guar_br_dl < min_qos_r99->guar_br_dl))
+  {
+    (void)TRACE_EVENT_P2("R99 GUARANTEED DOWNLINK BITRATE parameter "
+                         "insufficient: %d < %d (min_qos)",
+                         cmp_qos_r99->guar_br_dl, min_qos_r99->guar_br_dl);
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_compare_r97aim_lt_r97
++------------------------------------------------------------------------------
+| Description : Compares an R97 air interface QoS structure with an R97 QoS
+|               structure in internal SM representation.  Returns TRUE if
+|               AIM QoS is *less than* min QoS or *greater than* req QoS.
+| Parameters  : aim_qos_r97      - air interface QoS structure
+|               min_qos_r97      - minimum QoS structure
+|               req_qos_r97      - requested QoS structure
++------------------------------------------------------------------------------
+*/
+static BOOL sm_qos_compare_r97aim_lt_r97(/*@in@*/T_M_SM_qos_r97 *aim_qos_r97,
+                                         /*@in@*/T_PS_qos_r97  *min_qos_r97,
+                                         /*@in@*/T_PS_qos_r97  *req_qos_r97 )
+{
+  (void)TRACE_FUNCTION( "sm_qos_compare_r97aim_lt_r97");
+
+  /* Compare R97 AIM QoS with R97 parameter struct */
+  if ( (min_qos_r97->delay       != (U8)PS_DELAY_SUB && 
+        aim_qos_r97->delay       > min_qos_r97->delay ) ||
+       (req_qos_r97->delay       != (U8)PS_DELAY_SUB && 
+        aim_qos_r97->delay       < req_qos_r97->delay) )
+  {
+    (void)TRACE_EVENT_P4("R97 DELAY parameter insufficient: "
+                          "%d > %d (min_qos) || %d < %d (req_qos)", 
+                          aim_qos_r97->delay, min_qos_r97->delay, \
+                          aim_qos_r97->delay, req_qos_r97->delay);
+    return TRUE;
+  }
+  if ( (min_qos_r97->relclass    != (U8)PS_RELCLASS_SUB &&
+        aim_qos_r97->reliability > min_qos_r97->relclass) || 
+       (req_qos_r97->relclass    != (U8)PS_RELCLASS_SUB && 
+        aim_qos_r97->reliability < req_qos_r97->relclass) && 
+        /*the following line is for the TC 46.1.2.2.1.2*/
+      !((aim_qos_r97->reliability ==2)  && (req_qos_r97->relclass == 5)) ) 
+  {
+    (void)TRACE_EVENT_P4("R97 RELIABILITY CLASS parameter insufficient: "
+                         "%d > %d (min_qos) %d < %d (req_qos)",
+                         aim_qos_r97->reliability, min_qos_r97->relclass, \
+                         aim_qos_r97->reliability, req_qos_r97->relclass);
+    return TRUE;
+  }
+  if ( (min_qos_r97->peak != (U8)PS_PEAK_SUB && 
+        aim_qos_r97->peak <  min_qos_r97->peak) ||
+       (req_qos_r97->peak != (U8)PS_PEAK_SUB && 
+        aim_qos_r97->peak >  req_qos_r97->peak) )
+  {
+    (void)TRACE_EVENT_P4("R97 PEAK BITRATE parameter insufficient: "
+                         "%d < %d (min_qos) || %d > %d (req_qos)",
+                         aim_qos_r97->peak, min_qos_r97->peak, \
+                         aim_qos_r97->peak, req_qos_r97->peak);
+    return TRUE;
+  }
+  if ( (min_qos_r97->preced      != (U8)PS_PRECED_SUB &&
+        aim_qos_r97->precedence  > min_qos_r97->preced) ||
+       (req_qos_r97->preced      != (U8)PS_PRECED_SUB &&
+        aim_qos_r97->precedence  < req_qos_r97->preced))
+  {
+    (void)TRACE_EVENT_P4("R97 PRECEDENCE CLASS parameter insufficient: "
+                         "%d > %d (min_qos) || %d < %d (req_qos)",
+                         aim_qos_r97->precedence, min_qos_r97->preced, \
+                         aim_qos_r97->precedence, req_qos_r97->preced);
+    return TRUE;
+  }
+  if ( (min_qos_r97->mean        != (U8)PS_MEAN_SUB &&
+        aim_qos_r97->mean        < min_qos_r97->mean) || 
+       (req_qos_r97->mean        != (U8)PS_MEAN_SUB &&
+        aim_qos_r97->mean        > req_qos_r97->mean) )
+  {
+    (void)TRACE_EVENT_P4("R97 MEAN BITRATE parameter insufficient: "
+                         "%d < %d (min_qos) || %d > %d (req_qos)",
+                         aim_qos_r97->mean, min_qos_r97->mean, \
+                         aim_qos_r97->mean, req_qos_r97->mean);
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_compare_r99aim_lt_r99
++------------------------------------------------------------------------------
+| Description : Compares an R99 air interface QoS structure with an R99 QoS
+|               structure in internal SM representation.  Returns TRUE if
+|               AIM QoS is *less than* minimum QoS.
+| Parameters  : aim_qos_r99      - air interface QoS structure
+|               min_qos_r99      - minimum QoS structure
++------------------------------------------------------------------------------
+*/
+static BOOL sm_qos_compare_r99aim_lt_r99(/*@in@*/T_M_SM_qos_r99 *aim_qos_r99,
+                                         /*@in@*/T_PS_qos_r99  *min_qos_r99)
+{
+  (void)TRACE_FUNCTION( "sm_qos_compare_r99aim_lt_r99" );
+
+  /* Traffic class */
+  if ((min_qos_r99->tc != (U8)PS_TC_SUB) &&
+      (sm_qos_r99aim_to_tc(aim_qos_r99->tc) > min_qos_r99->tc))
+  {
+    (void)TRACE_EVENT_P2("R99 TRAFFIC CLASS parameter insufficient: "
+                         "%d > %d (min_qos)",
+                         sm_qos_r99aim_to_tc(aim_qos_r99->tc),
+                         min_qos_r99->tc);
+    return TRUE;
+  }
+
+  /* Delivery order */
+  if ((min_qos_r99->order != (U8)PS_ORDER_SUB) &&
+      (sm_qos_r99aim_to_order(aim_qos_r99->order) != min_qos_r99->order))
+  {
+    (void)TRACE_EVENT_P2("R99 DELIVERY ORDER parameter insufficient: "
+                         "%d != %d (min_qos)",
+                         sm_qos_r99aim_to_order(aim_qos_r99->order),
+                         min_qos_r99->order);
+    return TRUE;
+  }
+
+  /* Delivery of erroneous SDUs */
+  if ((min_qos_r99->del_err_sdu != (U8)PS_DEL_ERR_SUB) &&
+      (sm_qos_r99aim_to_del_err_sdu(aim_qos_r99->del_err_sdu) != min_qos_r99->del_err_sdu))
+  {
+    (void)TRACE_EVENT_P2("R99 DELIVERY of ERRONEUOS SDUs parameter "
+                         "insufficient: %d != %d (min_qos)",
+                         sm_qos_r99aim_to_del_err_sdu(aim_qos_r99->del_err_sdu),
+                         min_qos_r99->del_err_sdu);
+    return TRUE;
+  }
+
+  /* Max SDU size */
+  if ((min_qos_r99->max_sdu != (U16)PS_MAX_SDU_SUB) &&
+      (sm_qos_r99aim_to_max_sdu(aim_qos_r99->max_sdu) < min_qos_r99->max_sdu))
+  {
+    (void)TRACE_EVENT_P2("R99 MAX SDU SIZE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         sm_qos_r99aim_to_max_sdu(aim_qos_r99->max_sdu),
+                         min_qos_r99->max_sdu);
+    return TRUE;
+  }
+
+  /* Max uplink bit-rate */
+  if ((min_qos_r99->max_rate_ul != (U16)PS_MAX_BR_UL_SUB) &&
+      (sm_qos_r99aim_to_bitrate(aim_qos_r99->max_br_ul) < min_qos_r99->max_rate_ul))
+  {
+    (void)TRACE_EVENT_P2("R99 MAX UPLINK BITRATE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         sm_qos_r99aim_to_bitrate(aim_qos_r99->max_br_ul),
+                         min_qos_r99->max_rate_ul);
+    return TRUE;
+  }
+
+  /* Max downlink bit-rate */
+  if ((min_qos_r99->max_rate_dl != (U16)PS_MAX_BR_DL_SUB) &&
+      (sm_qos_r99aim_to_bitrate(aim_qos_r99->max_br_dl) < min_qos_r99->max_rate_dl))
+  {
+    (void)TRACE_EVENT_P2("R99 MAX DOWNLINK BITRATE parameter insufficient: "
+                         "%d < %d (min_qos)",
+                         sm_qos_r99aim_to_bitrate(aim_qos_r99->max_br_ul),
+                         min_qos_r99->max_rate_dl);
+    return TRUE;
+  }
+
+  /* Residual BER */
+  if ((min_qos_r99->ber.ratio_exp != (U8)0
+       && min_qos_r99->ber.ratio_mant != (U8)0) &&
+      (sm_qos_r99aim_ratio_to_U32(sm_qos_ber_table, aim_qos_r99->ber) <
+       sm_qos_ratio_to_U32(min_qos_r99->ber.ratio_mant,
+                           min_qos_r99->ber.ratio_exp)))
+  {
+#ifdef DEBUG
+    U8 ratio_exp, ratio_mant;
+    sm_qos_r99aim_to_ratio(sm_qos_ber_table, aim_qos_r99->ber,
+                           &ratio_mant, &ratio_exp);
+    (void)TRACE_EVENT_P4("R99 RESIDUAL BIT ERROR RATE parameter insufficient: "
+                         "%dE-%d < %dE-%d (min_qos)",
+                         ratio_mant, ratio_exp,
+                         min_qos_r99->ber.ratio_mant,
+                         min_qos_r99->ber.ratio_exp);
+#endif
+    return TRUE;
+  }
+
+  /* SDU error ratio */
+  if ((min_qos_r99->sdu_err_ratio.ratio_exp != (U8)0 &&
+       min_qos_r99->sdu_err_ratio.ratio_mant != (U8)0) &&
+      (sm_qos_r99aim_ratio_to_U32(sm_qos_sdu_err_ratio_table, aim_qos_r99->sdu_err_ratio) <
+       sm_qos_ratio_to_U32(min_qos_r99->sdu_err_ratio.ratio_mant,
+                           min_qos_r99->sdu_err_ratio.ratio_exp)))
+  {
+#ifdef DEBUG
+    U8 ratio_exp, ratio_mant;
+    sm_qos_r99aim_to_ratio(sm_qos_sdu_err_ratio_table,
+                           aim_qos_r99->sdu_err_ratio,
+                           &ratio_mant, &ratio_exp);
+    (void)TRACE_EVENT_P4("R99 SDU ERROR RATIO parameter insufficient: "
+                         "%dE-%d < %dE-%d (min_qos)",
+                         ratio_mant, ratio_exp,
+                         min_qos_r99->sdu_err_ratio.ratio_mant,
+                         min_qos_r99->sdu_err_ratio.ratio_exp);
+#endif
+    return TRUE;
+  }
+
+  /* Transfer delay - Note! Only for real-time traffic class traffic! */
+  if ((aim_qos_r99->tc == (U8)M_SM_QOS_TC_CONV
+       || aim_qos_r99->tc == (U8)M_SM_QOS_TC_STREAM) &&
+      (min_qos_r99->xfer_delay != (U16)PS_XFER_DELAY_SUB) &&
+      (sm_qos_r99aim_to_xfer_delay(aim_qos_r99->xfer_delay) > min_qos_r99->xfer_delay))
+  {
+    (void)TRACE_EVENT_P2("R99 TRANSFER DELAY parameter insufficient: "
+                         "%d > %d (min_qos)",
+                         sm_qos_r99aim_to_xfer_delay(aim_qos_r99->xfer_delay),
+                         min_qos_r99->xfer_delay);
+    return TRUE;
+  }
+
+  /* Traffic handling priority - Note: Only interactive traffic class! */
+  if ((aim_qos_r99->tc == (U8)M_SM_QOS_TC_INTER) &&
+      (min_qos_r99->handling_pri != (U8)PS_HANDLING_PRI_SUB) &&
+      (aim_qos_r99->handling_pri > min_qos_r99->handling_pri))
+  {
+    (void)TRACE_EVENT_P2("R99 TRANSFER HANDLING PRIORITY parameter "
+                         "insufficient: %d > %d (min_qos)",
+                         aim_qos_r99->handling_pri, min_qos_r99->handling_pri);
+    return TRUE;
+  }
+
+  /* Guaranteed uplink bit-rate - Note: Only for real-time traffic class traffic! */
+  if ((aim_qos_r99->tc == (U8)M_SM_QOS_TC_CONV
+       || aim_qos_r99->tc == (U8)M_SM_QOS_TC_STREAM) &&
+      (min_qos_r99->guar_br_ul != (U16)PS_GUAR_BR_UL_SUB) &&
+      (sm_qos_r99aim_to_bitrate(aim_qos_r99->guar_br_ul) < min_qos_r99->guar_br_ul))
+  {
+    (void)TRACE_EVENT_P2("R99 GUARANTEED UPLINK BITRATE parameter "
+                         "insufficient: %d < %d (min_qos)",
+                         sm_qos_r99aim_to_bitrate(aim_qos_r99->guar_br_ul),
+                         min_qos_r99->guar_br_ul);
+    return TRUE;
+  }
+
+  /* Guaranteed downlink bit-rate  - Note: Only for real-time traffic class traffic! */
+  if ((aim_qos_r99->tc == (U8)M_SM_QOS_TC_CONV
+       || aim_qos_r99->tc == (U8)M_SM_QOS_TC_STREAM) &&
+      (min_qos_r99->guar_br_dl != (U16)PS_GUAR_BR_DL_SUB) &&
+      (sm_qos_r99aim_to_bitrate(aim_qos_r99->guar_br_dl) < min_qos_r99->guar_br_dl))
+  {
+    (void)TRACE_EVENT_P2("R99 GUARANTEED DOWNLINK BITRATE parameter "
+                         "insufficient: %d < %d (min_qos)",
+                         sm_qos_r99aim_to_bitrate(aim_qos_r99->guar_br_dl),
+                         min_qos_r99->guar_br_dl);
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_is_minimum_satisfied_by_aim
++------------------------------------------------------------------------------
+| Description : Main comparison function. Compares a 3G air interface message
+|               QoS parameter set (R97 or R99) with the minimum QoS parameter
+|               set in context data.
+|               Returns TRUE if the 3G air message parameters are greater than
+|               or equal to the minimum parameters in SM representation
+|               ("greater than" is different for each value).
+|
+| Parameters  : context          - Context data
+|               aim_qos          - air interface QoS structure
++------------------------------------------------------------------------------
+*/
+BOOL sm_qos_is_minimum_satisfied_by_aim(struct T_SM_CONTEXT_DATA *context,
+                                        T_M_SM_qos               *aim_qos)
+{
+  BOOL  less_than = TRUE;
+
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_is_minimum_satisfied_by_aim");
+#endif
+   /*lint -e613 (Possible use of null pointer 'context' in left argument to operator '->') */
+  TRACE_ASSERT(context != NULL);
+
+  if (context->minimum_qos.ctrl_qos == PS_is_qos_not_present) {
+      /* Accept QoS without any checking */
+    return TRUE; 
+  } 
+  if (context->minimum_qos.ctrl_qos == PS_is_R97) {
+    T_PS_qos_r97 *min_qos = &context->minimum_qos.qos.qos_r97;
+    T_PS_qos_r97 *req_qos = &context->requested_qos.qos.qos_r97;
+    if (aim_qos->v_qos_r99 == (U8)FALSE) {
+      less_than = sm_qos_compare_r97aim_lt_r97(&aim_qos->qos_r97, min_qos, 
+                                               req_qos);
+    } else { 
+
+     /* This #if.. #else part is required because we currently do not set
+      * RAT when MMPM_ATTACH_IND is received. When the RAT is set properly 
+      * retain ONLY the #else part. 
+      */
+/*#ifdef SM_EDGE */ /*ONLY FOR GPRS WORLD*/
+      /*In GPRS world try comparing only R97 part of QoS*/
+      TRACE_EVENT("GSM/GPRS RAT.. Comparing only R97 part of QoS.");
+      less_than = sm_qos_compare_r97aim_lt_r97(&aim_qos->qos_r97, min_qos, 
+                                               req_qos);
+#if 0
+      /*#else*/ /*FOR UMTS and DUAL-MODE*/
+      if (sm_get_current_rat() == PS_RAT_GSM){
+        /*In GPRS world compare only R97 part of QoS*/
+        TRACE_EVENT("GSM/GPRS RAT.. Comparing only R97 part of QoS.");
+        less_than = sm_qos_compare_r97aim_lt_r97(&aim_qos->qos_r97, min_qos,
+                                                 req_qos);
+      } else { /*We should be in UMTS world now..*/
+        T_PS_qos_r99      tmp_qos;
+        TRACE_EVENT("Calling cl_qos_convert_r97_to_r99() for min qos");
+        cl_qos_convert_r97_to_r99(&context->minimum_qos.qos.qos_r97, &tmp_qos);
+        TRACE_EVENT("UMTS RAT.. Comparing only R99 part of QoS.");
+        less_than = sm_qos_compare_r99aim_lt_r99(&aim_qos->qos_r99, &tmp_qos);
+      }
+      /*#endif*/
+#endif
+
+    }
+  }
+  else if (context->minimum_qos.ctrl_qos == PS_is_R99) {
+    T_PS_qos_r99        tmp_qos;
+    if (aim_qos->v_qos_r99 == (U8)FALSE) {
+      cl_qos_convert_r97_to_r99(&context->minimum_qos.qos.qos_r97, &tmp_qos);
+    }
+  else {
+      memcpy(&tmp_qos, &context->minimum_qos.qos.qos_r99, sizeof(T_PS_qos_r99));
+    }
+
+    less_than = sm_qos_compare_r99aim_lt_r99(&aim_qos->qos_r99, &tmp_qos);
+  } else { /* if (context->ctrl_minimum_qos) */
+    (void)TRACE_EVENT_P1("ERROR! Invalid union controller == %d in minimum QoS!",
+                         context->minimum_qos.ctrl_qos);
+  }
+
+  return !less_than;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_is_minimum_satisfied_by_aim
++------------------------------------------------------------------------------
+| Description : Comparison function. Compares a the minimum QoS parameter set
+|               configured in context data with another QoS structure in
+|               internal SM representation.  Returns TRUE if the comparison QoS
+|               parameters are greater than or equal to the minimum parameters.
+|               ("greater than" is different for each value).
+|
+| Parameters  : context          - Context data
+|               sm_qos           - comparison QoS structure
++------------------------------------------------------------------------------
+*/
+BOOL sm_qos_is_minimum_satisfied_by_sm(struct T_SM_CONTEXT_DATA *context,
+                                       T_SM_qos                 *sm_qos)
+{
+  BOOL  less_than = TRUE;
+
+#ifdef DEBUG_VERBOSE
+  (void)TRACE_FUNCTION( "sm_qos_is_minimum_satisfied_by_sm");
+#endif
+   /*lint -e613 (Possible use of null pointer 'context' in left argument to operator '->') */
+  TRACE_ASSERT(context != NULL);
+
+  if (context->minimum_qos.ctrl_qos == PS_is_qos_not_present) {
+    /* Accept QoS without any checking */
+    return TRUE; 
+  } 
+  if (context->minimum_qos.ctrl_qos == PS_is_R97) {
+    T_PS_qos_r97 *min_qos = &context->minimum_qos.qos.qos_r97;
+    if (sm_qos->ctrl_qos == PS_is_R97) {
+      /*
+        less_than = sm_qos_compare_r97_lt_r97(&sm_qos->qos.qos_r97, min_qos);
+        * Construct not used, as this function is called only during
+        * MO modify procedures, which is a R99 feature.
+      */
+      less_than = FALSE;
+    } else {
+      T_PS_qos_r99      tmp_qos;
+      cl_qos_convert_r97_to_r99(min_qos, &tmp_qos);
+
+      less_than = sm_qos_compare_r99_lt_r99(&sm_qos->qos.qos_r99, &tmp_qos);
+    }
+  } else if (context->minimum_qos.ctrl_qos == PS_is_R99) {
+    T_PS_qos_r99 *min_qos = &context->minimum_qos.qos.qos_r99;
+    if (sm_qos->ctrl_qos == PS_is_R97) {
+      T_PS_qos_r99      tmp_qos;
+      cl_qos_convert_r97_to_r99(&sm_qos->qos.qos_r97, &tmp_qos);
+
+      less_than = sm_qos_compare_r99_lt_r99(&tmp_qos, min_qos);
+    } else {
+      less_than = sm_qos_compare_r99_lt_r99(&sm_qos->qos.qos_r99, min_qos);
+    }
+  } else {
+    (void)TRACE_EVENT_P1("ERROR! Invalid union controller == %d in minimum QoS!",
+                       context->minimum_qos.ctrl_qos);
+    }
+
+
+  return !less_than;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_copy_from_sm
++------------------------------------------------------------------------------
+| Description : Copy QoS structure and union controller from context data to
+|               another QoS structure (in a primitive etc).
+|
+| Parameters  : dst              - Destination QoS structure
+|               src              - Source QoS structure
+|               dctrl            - Destination union controller
++------------------------------------------------------------------------------
+*/
+void sm_qos_copy_from_sm(T_PS_qos *dst, T_SM_qos *src, T_PS_ctrl_qos *dctrl)
+{
+  *dctrl     = src->ctrl_qos;
+  memcpy(dst, &src->qos, sizeof(T_PS_qos));
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_copy_to_sm
++------------------------------------------------------------------------------
+| Description : Copy QoS structure and union controller from e.g. a primitive
+|               to context data.
+|
+| Parameters  : dst              - Destination QoS structure (in context data)
+|               src              - Source QoS structure
+|               ctrl             - Source union controller
++------------------------------------------------------------------------------
+*/
+void sm_qos_copy_to_sm(T_SM_qos *dst, T_PS_qos *src, T_PS_ctrl_qos ctrl)
+{
+  dst->ctrl_qos  = ctrl;
+  memcpy(&dst->qos, src, sizeof(T_PS_qos));
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_is_requested_qos_present
++------------------------------------------------------------------------------
+| Description : Returns TRUE if requested QoS element is present.
+|
+| Parameters  : context          - Context data
++------------------------------------------------------------------------------
+*/
+BOOL sm_qos_is_requested_qos_present(struct T_SM_CONTEXT_DATA *context)
+{
+   /*lint -e613 (Possible use of null pointer 'context' in left argument to operator '->') */
+  TRACE_ASSERT(context != NULL);
+
+  return (context->requested_qos.ctrl_qos != PS_is_qos_not_present);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_rank_del_contexts_based_on_tc
++------------------------------------------------------------------------------
+| Description : Ranks all contexts linked to a pdp address based on traffic 
+|               class and traffic handling priority. Locally deactivates all 
+|               but the best ranking context. Informs ACI about the deactivation.
+|               Also sends a pdp context status request to GMM.
+|               Reference 23.107 Annex C
+|
+| Parameters  : None
++------------------------------------------------------------------------------
+*/
+#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT
+
+U16 sm_rank_del_contexts_based_on_tc()
+{
+  U8  nsapi        = 0;
+  U8  temp_ti      = 0; 
+  U8  count        = 0; 
+  U8  temp_nsapi   = 0;
+  U16 context_ti   = 0;
+  U16 linked_contexts  = 0;
+  U8  best_qos_rank = SM_HIGH_VALUE; /*Initialize with a high value*/
+  U16 nsapis_to_deactivate = 0;
+
+  for (nsapi=(int)NAS_NSAPI_5; nsapi < NAS_SIZE_NSAPI; nsapi++)
+  {
+     struct T_SM_CONTEXT_DATA *context;
+     struct T_SM_CONTEXT_DATA *temp_context;
+  
+     context = sm_get_context_data_from_nsapi(nsapi);
+     /* The context_control_state is checked to see if the context is already 
+      * getting deactivated
+      */
+     if ( context != NULL && 
+        (context->context_control_state != SM_CONTEXT_DEACTIVATED) )
+     {
+       if (sm_is_secondary(context))
+       {
+         context_ti = context->linked_ti;
+       } else {
+         context_ti = context->ti;
+       }
+       linked_contexts = sm_add_nsapi_to_nsapi_set(nsapi, linked_contexts);
+       count = 1; /*One context is already active*/ 
+       /*Rank this context. May be needed if linked contexts are active*/
+       context->qos_rank = sm_qos_rank_context(context->ti);
+       if (context->qos_rank < best_qos_rank) {
+           best_qos_rank = context->qos_rank;
+       }
+     } else { /*Go to the next nsapi*/
+       continue; 
+     }
+     /* One context active. Check all the remaining active contexts */
+     for (temp_nsapi=nsapi; temp_nsapi < NAS_SIZE_NSAPI; temp_nsapi++)
+     {
+       temp_context = sm_get_context_data_from_nsapi(temp_nsapi); 
+       if(temp_context != NULL && temp_context->context_control_state
+                                  !=  SM_CONTEXT_DEACTIVATED)
+       {
+          if (sm_is_secondary(temp_context))
+          {
+            temp_ti = temp_context->linked_ti;
+          } else {
+            temp_ti = temp_context->ti;
+          }
+          if ( (temp_nsapi != nsapi) && (temp_ti == context_ti) )
+          {
+            linked_contexts = sm_add_nsapi_to_nsapi_set(temp_nsapi, 
+                                                   linked_contexts);
+            count++; 
+            /*A second context active. Rank it. Pass the ti of the context*/
+            temp_context->qos_rank = sm_qos_rank_context(temp_context->ti);
+            if (temp_context->qos_rank < best_qos_rank) {
+              best_qos_rank = temp_context->qos_rank;
+            }
+          }
+        }
+     }
+
+     if (count >=2 )
+     {
+       for (temp_nsapi=(int)NAS_NSAPI_5; temp_nsapi<NAS_SIZE_NSAPI; temp_nsapi++)
+       {
+         struct T_SM_CONTEXT_DATA *context;
+         if( (linked_contexts & (0x0001 << temp_nsapi)) != 0 )
+         {
+           context = sm_get_context_data_from_nsapi(temp_nsapi); 
+           if ( (context->qos_rank > best_qos_rank) && (context != NULL)
+                && (context->context_control_state != SM_CONTEXT_DEACTIVATED) )
+           { 
+              (void)TRACE_EVENT_P1("Deactivating nsapi >>TC based << %d; ", temp_nsapi);
+              /*deactivate the context*/
+              nsapis_to_deactivate = sm_add_nsapi_to_nsapi_set(temp_nsapi,
+                                                      nsapis_to_deactivate);
+              /* Make sure to clear the pending reactivation flag */
+              sm_set_context_pending_reactivation(context, FALSE);
+              /* Order context deactivation */
+              sm_context_control(context, SM_I_CONTEXT_LOCAL_DEACTIVATE, 
+                                          (void *)TRUE);
+            } 
+          }
+       }
+     }
+  }
+
+return nsapis_to_deactivate;
+}
+#endif /*#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT*/
+
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_qos_rank_context
++------------------------------------------------------------------------------
+| Description : Provides a rank for the context based on the tc and handling pri
+|               Reference 23.107 Annex C
+|
+| Parameters  : context ti
++------------------------------------------------------------------------------
+*/
+#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT
+
+U8 sm_qos_rank_context(U16 ti)
+{
+  struct T_SM_CONTEXT_DATA *context;
+  T_PS_qos_r99 temp_qos;
+  U8           qos_rank = 0;
+
+  context = sm_get_context_data_from_ti(ti);
+
+  if(context->accepted_qos.ctrl_qos == PS_is_R97)
+  { /*R97 QoS. Convert to R99 QoS before ranking*/
+     (void)cl_qos_convert_r97_to_r99(&context->accepted_qos.qos.qos_r97,
+                                     &temp_qos);
+  } else
+  {
+     temp_qos = context->accepted_qos.qos.qos_r99;
+  }
+
+  switch(temp_qos.tc)
+  {
+    case PS_TC_INTER:
+      switch(temp_qos.handling_pri)
+      {
+        case PS_HANDLING_PRI_1: 
+          qos_rank = 1; 
+          break;
+        case PS_HANDLING_PRI_2: 
+          qos_rank = 4; 
+          break;
+        case PS_HANDLING_PRI_3: 
+          qos_rank = 5; 
+          break;
+       }
+      break;
+    case PS_TC_CONV:
+      qos_rank = 2; 
+      break;
+    case PS_TC_STREAM:
+      qos_rank = 3; 
+      break;
+    case PS_TC_BG:
+      qos_rank = 6; 
+      break;
+    default:
+      qos_rank = 6;
+      break;
+  }
+  return qos_rank;
+}
+#endif /*#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT*/
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_retain_cntxt_wth_best_bitrate
++------------------------------------------------------------------------------
+| Description : Deactivates all the linked pdp contexts except the one with 
+|               highest max bit rate uplink or downlink. Informs ACI about the 
+|               deactivation.
+|               Also sends a pdp context status request to GMM.
+|               Reference 23.107 Annex C
+|
+| Parameters  : None
++------------------------------------------------------------------------------
+*/
+#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT
+
+U16 sm_retain_cntxt_wth_best_bitrate()
+{
+  U8  nsapi      = 0;
+  U8  temp_nsapi = 0;
+  U8  count      = 0;
+  U16 linked_contexts      = 0;        
+  U16 best_max_bitrate     = 0;
+  U16 nsapis_to_deactivate = 0;
+  U16 context_ti           = 0;
+  U16 temp_ti              = 0;
+  T_PS_qos_r99 temp_qos;
+
+
+  for (nsapi = (int)NAS_NSAPI_5; nsapi < NAS_SIZE_NSAPI; nsapi++)
+  {
+    struct T_SM_CONTEXT_DATA *context;
+    struct T_SM_CONTEXT_DATA *temp_context;
+
+    context = sm_get_context_data_from_nsapi(nsapi);
+    if ( (context != NULL) && (context->context_control_state 
+                               != SM_CONTEXT_DEACTIVATED) )
+    {
+      if (sm_is_secondary(context))
+      {
+        context_ti = context->linked_ti;
+      } else {
+        context_ti = context->ti;
+      }
+      linked_contexts = sm_add_nsapi_to_nsapi_set(nsapi, linked_contexts);
+      count = 1; /*One context is already active*/ 
+    } else { /* Process the next nsapi */
+      continue; 
+    }
+
+    for(temp_nsapi=nsapi; temp_nsapi < NAS_SIZE_NSAPI; temp_nsapi++)
+    {
+      temp_context = sm_get_context_data_from_nsapi(temp_nsapi); 
+      if(temp_context != NULL && temp_context->context_control_state
+                               !=  SM_CONTEXT_DEACTIVATED)
+      {
+         if (sm_is_secondary(temp_context))
+         {
+           temp_ti = temp_context->linked_ti;
+         } else {
+           temp_ti = temp_context->ti;
+         }
+         if ( (temp_nsapi != nsapi) && (temp_ti == context_ti) )
+         {
+           linked_contexts = sm_add_nsapi_to_nsapi_set(temp_nsapi, 
+                                                       linked_contexts);
+           count++; 
+         }
+      }
+   }
+
+   if (count >=2)
+   { /*Multiple contexts active for this ti. Find the best_max_bit rate.*/
+     (void)TRACE_EVENT( "Multiple contexts active: sm_retain_cntxt_wth_best_bitrate" );
+     for (temp_nsapi=(int)NAS_NSAPI_5; temp_nsapi < NAS_SIZE_NSAPI; temp_nsapi++)
+     {
+       if( (linked_contexts & (0x0001 << temp_nsapi)) != 0 )
+       {
+          context = sm_get_context_data_from_nsapi(temp_nsapi); 
+          if(context->accepted_qos.ctrl_qos == PS_is_R97)
+          { /*R97 QoS. Convert to R99 QoS before ranking*/
+            (void)cl_qos_convert_r97_to_r99(&context->accepted_qos.qos.qos_r97,
+                                            &temp_qos);
+          } else  {
+            temp_qos = context->accepted_qos.qos.qos_r99;
+          }
+          if (temp_qos.max_rate_dl >= best_max_bitrate)
+          {
+             best_max_bitrate = temp_qos.max_rate_dl; 
+          } else if (temp_qos.max_rate_ul >= best_max_bitrate)  {
+              best_max_bitrate = temp_qos.max_rate_ul; 
+          } 
+        }
+     }
+
+   }
+
+   if (count >=2) 
+   {
+     for (temp_nsapi=(int)NAS_NSAPI_5; temp_nsapi < NAS_SIZE_NSAPI; temp_nsapi++)
+     {
+       if( (linked_contexts & (0x0001 << temp_nsapi)) != 0 )
+       {
+          context = sm_get_context_data_from_nsapi(temp_nsapi); 
+          if(context->accepted_qos.ctrl_qos == PS_is_R97)
+          { /*R97 QoS. Convert to R99 QoS before ranking*/
+            (void)cl_qos_convert_r97_to_r99(&context->accepted_qos.qos.qos_r97,
+                                            &temp_qos);
+          } else  {
+            temp_qos = context->accepted_qos.qos.qos_r99;
+          }
+          if ( (temp_qos.max_rate_dl == best_max_bitrate) || 
+               (temp_qos.max_rate_ul == best_max_bitrate) )
+          { 
+             /* Don't do anything */
+          } 
+          else /* Deactivate the context */
+          { 
+             (void)TRACE_EVENT_P1("Deactivating nsapi << bit rate based >> %d; ", temp_nsapi);
+             /*Deactivate the context*/
+             nsapis_to_deactivate = sm_add_nsapi_to_nsapi_set(temp_nsapi, 
+                                    nsapis_to_deactivate);
+             /* Make sure to clear the pending reactivation flag */
+             sm_set_context_pending_reactivation(context, FALSE);
+             /* Order context deactivation */
+             sm_context_control(context, SM_I_CONTEXT_LOCAL_DEACTIVATE, 
+                                         (void *)TRUE);
+          }
+       }
+     }
+   }
+
+  }
+ return nsapis_to_deactivate;
+}
+
+#endif /*#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT*/
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_retain_cntxt_with_least_nsapi
++------------------------------------------------------------------------------
+| Description : Deactivates all the linked pdp contexts except the one with 
+|               least nsapi value. Informs ACI about the deactivation.
+|               Also sends a pdp context status request to GMM.
+|               Reference 23.107 Annex C
+|
+| Parameters  : None
++------------------------------------------------------------------------------
+*/
+#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT
+
+U16 sm_retain_cntxt_with_least_nsapi()
+{
+  struct T_SM_CONTEXT_DATA *context;
+  struct T_SM_CONTEXT_DATA *temp_context;
+  U8  nsapi                = 0;
+  U8  temp_nsapi           = 0;
+  U16 linked_contexts      = 0;
+  U16 nsapis_to_deactivate = 0;
+  U16 best_max_bitrate     = 0;
+  U8  min_nsapi = SM_HIGH_VALUE; /*Initialize to a high value. Here 255*/
+  U8  count                = 0;
+  U16 context_ti,temp_ti   = 0;
+
+
+  for (nsapi = (int)NAS_NSAPI_5; nsapi < NAS_SIZE_NSAPI; nsapi++)
+  {
+    context = sm_get_context_data_from_nsapi(nsapi);
+    if ( (context != NULL) && (context->context_control_state != 
+                           SM_CONTEXT_DEACTIVATED) )
+    {
+      if (sm_is_secondary(context))
+       {
+         context_ti = context->linked_ti;
+       } else {
+         context_ti = context->ti;
+       }
+       linked_contexts = sm_add_nsapi_to_nsapi_set(nsapi, linked_contexts);
+       count = 1; /*One context is already active*/ 
+     } else { /*Go to the next nsapi*/
+       continue;
+     }
+    
+    /* Check all the remaining active contexts */
+     for (temp_nsapi=nsapi; temp_nsapi < NAS_SIZE_NSAPI; temp_nsapi++)
+     {
+       temp_context = sm_get_context_data_from_nsapi(temp_nsapi);
+       if(temp_context != NULL && temp_context->context_control_state
+                                  !=  SM_CONTEXT_DEACTIVATED)
+       {
+          if (sm_is_secondary(temp_context))
+          {
+            temp_ti = temp_context->linked_ti;
+          } else {
+            temp_ti = temp_context->ti;
+          }
+          if ( (temp_nsapi != nsapi) && (temp_ti == context_ti) )
+          {
+            linked_contexts = sm_add_nsapi_to_nsapi_set(temp_nsapi, 
+                                                        linked_contexts);
+            count++; 
+          }
+        }
+     }
+
+
+    if (count >= 2)
+    { /*Multiple contexts active for this ti. Try deactivating.*/
+      (void)TRACE_EVENT( "Multiple contexts active: sm_retain_cntxt_with_least_nsapi" );
+      for (temp_nsapi=(int)NAS_NSAPI_5; temp_nsapi<NAS_SIZE_NSAPI; temp_nsapi++)
+      {
+        if( (linked_contexts & (0x0001 << temp_nsapi)) != 0 )
+        {
+          temp_context = sm_get_context_data_from_nsapi(temp_nsapi);
+          if ((min_nsapi == SM_HIGH_VALUE) && (temp_context != NULL) && 
+              (temp_context->context_control_state != SM_CONTEXT_DEACTIVATED) )
+          {
+            min_nsapi = temp_nsapi;
+          } else
+            {
+               (void)TRACE_EVENT_P1("Deactivating nsapi >>nsapi based << %d; ", temp_nsapi);
+               /*Deactivate the context*/
+               nsapis_to_deactivate = sm_add_nsapi_to_nsapi_set(temp_nsapi, 
+                                                      nsapis_to_deactivate);
+               /* Make sure to clear the pending reactivation flag */
+               sm_set_context_pending_reactivation(temp_context, FALSE);
+               /* Order context deactivation */
+               sm_context_control(temp_context, SM_I_CONTEXT_LOCAL_DEACTIVATE,
+                                                                (void *)TRUE);
+            }
+         }
+      }
+    }
+ }
+  return nsapis_to_deactivate;
+}
+
+#endif /*#ifdef TI_PS_OP_SM_RETAIN_BEST_CONTEXT*/
+