Dynamic radio link adaptation for interference in cellular systems
AssigneeInterDigital Technology Corporation
InventorGuodong Zhang
Life of this patent
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Abstract
A method for implementing dynamic link adaptation in a cellular system by a user equipment (UE) having two coded composite transport channels (CCTrCHs) in an uplink time slot begins by estimating transmit power using a transport format combination (TFC) pair for the CCTrCHs. The total estimated transmit power for the two CCTrCHs is compared with a given threshold. Use of both TFCs is permitted when the total estimated power is less than the threshold.
Claims20
A method for implementing dynamic link adaptation in a cellular system by a user equipment (UE) having two coded composite transport channels (CCTrCHs) in an uplink time slot, the method comprising the steps of:
- estimating transmit power using a transport format combination (TFC) pair for the CCTrCHs;
- comparing total estimated transmit power for two CCTrCHs with a given threshold;
- and
- permitting use of both TFCs when the total estimated power is less than the threshold.
A dynamic link adaptation apparatus far use in a cellular system by a user equipment (UE) having two coded composite transport channels (CCTrCHs) in an uplink time slot, comprising:
- estimating means for estimating transmit power using a transport format combination (TFC) pair for the CCTrCHs;
- comparing means for comparing total estimated transmit power for two CCTrCRs with a given threshold;
- and
- means for permitting use of both TFCs when the total estimated power is less than said threshold.
A user equipment (UE) for dynamically selecting a transport format combination (TFC) for simultaneous transmission of a plurality of coded composite transport channels (CCTrCHs), the UE comprising:
- a power estimation unit for estimating transmit power of a TFC for each CCTrCH;
- a comparator for determining whether a total transmit power estimate for transmitting the CCTrCHs exceeds a maximum allowed transmit power of the UE;
- and
- a TFC selection unit for blocking at least one TFC if the total transmit power estimate exceeds the maximum allowed transmit power.
A method for dynamically selecting a transport format combination (TFC) for a user equipment (UE) which is configured to process a plurality of coded composite transport channels (CCTrCHs) simultaneously, the method comprising:
- (a) estimating transmit power of a TFC for each CCTrCH;
- (b) determining whether a total transmit power estimate for transmitting the CCTrCHs exceeds a maximum allowed transmit power of the UE;
- and
- (c) blocking at least one TFC if the total transmit power estimate exceeds the maximum allowed transmit power.
Dependencies are inferred from the claim text.