초록 ▼

A method for rate selection by a communication device for enhanced uplink during soft handoff in a wireless communication system includes a first step of receiving information from a scheduler. This information can include one or more of scheduling, a rate limit, a power margin limit, and a persiste

A method for rate selection by a communication device for enhanced uplink during soft handoff in a wireless communication system includes a first step of receiving information from a scheduler. This information can include one or more of scheduling, a rate limit, a power margin limit, and a persistence. A next step includes determining a data rate for an enhanced uplink during soft handoff using the information. A next step includes transmitting to a serving base station on an enhanced uplink channel at the data rate determined from the determining step.

대표청구항 ▼

What is claimed is: 1. A method for rate selection by a communication device for uplink during soft handoff in a communication system, the method comprising steps of: receiving a scheduling assignment message including a power margin limit from a scheduler; determining a data rate for an uplink tra

What is claimed is: 1. A method for rate selection by a communication device for uplink during soft handoff in a communication system, the method comprising steps of: receiving a scheduling assignment message including a power margin limit from a scheduler; determining a data rate for an uplink transmission during soft handoff using the power margin limit, local channel conditions and a buffer occupancy of the communication device; and transmitting to a serving base station on an uplink channel at the data rate determined from the determining step; wherein the determining step includes a data rate constraint of description="In-line Formulae" end="lead"K2*Pmargin--limit /Pdpcch*TPC_correctiondescription="In-line Formulae" end="tail" where Pmargin--limit is the power margin limit, Pdpcch is a power of the downlink physical control channel, and K2 is a scale factor, and TPC_correction dependent upon a power control command history and pilot channel signal strength. 2. A method for rate selection by a communication device for uplink during soft handoff in a communication system, the method comprising steps of: receiving a scheduling assignment message including a power margin limit from a scheduler; determining a data rate for an uplink transmission during soft handoff using the power margin limit, local channel conditions and a buffer occupancy of the communication device; and transmitting to a serving base station on an uplink channel at the data rate determined from the determining step; wherein the determining step includes a data rate constraint of description="In-line Formulae" end="lead"Rmax--effective --SHOtarget*g(imbalance)description="In-line Formulae" end="tail" where Rmax--effective-- SHOtarget is the maximum effective rate, and g(imbalance) is an imbalance between a transmission gain of the scheduling cell and communication device, divided by a transmission gain between an adjacent cell with next largest or largest transmission gain relative to scheduling cell and the communication device.