US 2003/0142636 A1Published application

Methods for controlling transmission of high-speed data traffic in IPDLS

AssigneeHuawei Technologides, Co., Ltd.

InventorNing Su

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Abstract

The transmission of high-speed data traffic in IPDLs at a base station of a cellular communications network is controlled. An IPDL is identified which occurs within a set of time slots of a given channel. The channel may comprise a dedicated time slot channel or a packet-oriented time slot channel. More specifically, the channel may comprise a Dedicated Physical Control Channel or a High Speed Downlink Shared Channel. The information within a time slot of the set is shifted. In accordance with one aspect of the invention, the information is shifted to a reduced portion of the time slot of the channel by reducing a spread spectrum factor for the signal carrying the information and increasing the transmission power of the signal. A remaining portion of the time slot spans at least a duration of the identified IPDL. In accordance with another aspect of the invention, the information within the time slot is shifted to another time slot of the channel.

Claims17

Dependent claims

A method for controlling transmission of high-speed data traffic in IPDLs, said method comprising:

the network identifying the occurrence of an IPDL, and determining whether the IPDL is in a Dedicated Physical Control Channel (DPCH);
when the IPDL is in a DPCH, determining whether the IPDL spans two time slots in the DPCH;
when the IPDL spans one time slot of the DPCH, halving the spread spectrum factor for the signal in the time slot occupied by the IPDL and increasing the transmitting power for the signal;
when the IPDL spans two time slots of the DPCH, halving the spread spectrum factor of the previous time slot spanned by the IPDL, shifting the information of the previous time slot into a first half time slot of the previous time slot, halving the spread spectrum factor of the next time slot spanned by the IPDL, and shifting the information of the next time slot into a second half of the next time slot, and increasing the transmitting power for the signal in the shifted time slot portions of the previous time slot and the next time slot;
determining whether the IPDL spans two time slots of the HS-DSCH;
when the IPDL spans one time slot of the HS-DSCH, shifting the time slots to a latter time slot in the HS-DSCH;
when the IPDL spans two time slots of the HS-DSCH, shifting a portion of the previous time slot to a latter time slot and shifting a portion of the next time slot to a latter time slot, remaining non-shifted portions of the time slots spanning at least a duration of the identified IPDL.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/325,708Filed 20 Dec 2002
Priority: CN 01144553.X20 Dec 2001
Published: 31 Jul 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04W 28/06
Traffic management, e.g. flow control or congestion control: optimizing the usage of the radio link, e.g. header compression, information sizing ,…
H04B 1/707
Spread spectrum techniques: using direct sequence modulation
H04W 48/16
Access restriction ; Network selection; Access point selection: discovering, processing access restriction or access information
H04W 52/54
Transmission power control [TPC]: signalisation aspects of the TPC commands, e.g. frame structure