Uplink Communications
A method including communicating by an apparatus with base stations using a high speed uplink packet transmission technique that provides the apparatus with serving and non-serving links to base stations as well as scheduled transmissions in a serving link. A transmission power downgrading command is detected at the apparatus from a non-serving link. In a situation in which no scheduled transmission took place by the apparatus during preceding transmission period, the downgrading command is prevented from causing the apparatus to start applying a lowest value of a variable or parameter that defines the transmission power or power ratio for scheduled transmission.
1 .- 21 . (canceled)
22 . A method comprising:
communicating by an apparatus with base stations using a high speed uplink packet transmission technique that provides the apparatus with serving and non-serving links to base stations as well as scheduled transmissions in a serving link;
detecting a relative grant command at the apparatus from a non-serving link; and
in a situation in which no scheduled transmission took place by the apparatus during preceding transmission period, preventing the detected command from causing the apparatus to start applying a lowest value of a variable or parameter that defines or controls the transmission power or power ratio for scheduled transmission.
23 . The method of claim 22 , wherein said preventing is performed if a relative grant command DOWN is detected at the apparatus and no scheduled transmission took place on a transmission (HARQ) process in a previous transmission time interval (reference_ETPR equals Minimum_Grant) or during any of the active transmission (HARQ) processes in a preceding time window (maximum of all active reference_ETPR2 equals Minimum_Grant).
24 . The method of claim 23 , wherein said preventing is performed by preventing Serving_Grant from being set to Minimum_Grant.
25 . The method of claim 22 , wherein said preventing is performed in a situation in which no scheduled transmission took place by the apparatus during any of the active transmission (HARQ) processes in a preceding time window.
26 . The method of claim 22 , wherein the relative grant command is a transmission power downgrading command or data rate downgrading command, or a command to maintain current data rate or transmission power.
27 . The method of claim 22 , wherein the relative grant command is a HOLD or DOWN command on a relative grant channel (E-RGCH or similar).
28 . The method of claim 22 , wherein the use of a current value of said variable or parameter is continued.
29 . The method of claim 22 , wherein the scheduled transmission is a transmission occurring on an uplink transport channel.
30 . The method of claim 22 , wherein the transmission power downgrading command is a detected relative grant command requiring a power change in relation to scheduled data transmitted during a preceding transmission period.
31 . An apparatus comprising:
a communication unit configured to communicate with base stations using a high speed uplink packet transmission technique that provides the apparatus with serving and non-serving links to base stations as well as scheduled transmissions in a serving link, the communication unit further being configured to detect a relative grant command from a non-serving link; and
a processor configured to prevent, in a situation in which no scheduled transmission took place by the apparatus during preceding transmission period, the detected command from causing the apparatus to start applying a lowest value of a variable or parameter that defines or controls the transmission power or power ratio for scheduled transmission.
32 . The apparatus of claim 31 , wherein the apparatus is configured to perform said preventing if a relative grant command DOWN is detected at the apparatus and no scheduled transmission took place on a transmission (HARQ) process in a previous transmission time interval (reference ETPR_equals Minimum_Grant) or during any of the active transmission (HARQ) processes in a preceding time window (maximum of all active reference_ETPR2 equals Minimum_Grant).
33 . The apparatus of claim 32 , wherein the apparatus is configured to perform said preventing by preventing Serving_Grant from being set to Minimum_Grant.
34 . The apparatus of claim 31 , wherein the relative grant command is a transmission power downgrading command or data rate downgrading command, or a command to maintain current data rate or transmission power.
35 . The apparatus of claim 31 , wherein the relative grant command is a HOLD or DOWN command on a relative grant channel (E-RGCH or similar).
36 . The apparatus of claim 31 , wherein the apparatus is configured to continue using a current value of said variable or parameter.
37 . The apparatus of claim 31 , wherein the scheduled transmission is a transmission occurring on an uplink transport channel.
38 . The apparatus of claim 31 , wherein the transmission power downgrading command is a detected relative grant command requiring a power change in relation to scheduled data transmitted during a preceding transmission period.
39 . The apparatus of claim 31 , wherein the apparatus is a mobile terminal.
40 . A computer program product embodied on a non-transitory storage medium, comprising program code executable in an apparatus, and when executed causing the apparatus to perform the operations of
communicating with base stations using a high speed uplink packet transmission technique that provides the apparatus with serving and non-serving links to base stations as well as scheduled transmissions in a serving link;
detecting a relative grant command at the apparatus from a non-serving link; and
in a situation in which no scheduled transmission took place by the apparatus during preceding transmission period, preventing the detected command from causing the apparatus to start applying a lowest value of a variable or parameter that defines or controls the transmission power or power ratio for scheduled transmission.
41 . An apparatus comprising:
means configured to communicate with base stations using a high speed uplink packet transmission technique that provides the apparatus with serving and non-serving links to base stations as well as scheduled transmissions in a serving link, the means further being configured to detect a relative grant command from a non-serving link; and
means configured to prevent, in a situation in which no scheduled transmission took place by the apparatus during preceding transmission period, the detected command from causing the apparatus to start applying a lowest value of a variable or parameter that defines or controls the transmission power or power ratio for scheduled transmission.