AT403285T

Methods and apparatus for synchronization detection and power control during soft handover

Abstract

A terminal (200) in a communication system, comprising: a device (206) that recovers control symbols intended for the terminal, wherein the control symbols include the control commands transmission power (TPC: Transmit Power Control ) addressed to the terminal (200) from at least one transmitting node to which the terminal is connected and at least one node to which the terminal (200) would be simultaneously connected; a combiner TPC (210) adapted ARPA receiving TPC commands from the device (206) and, based on the orders, generating a combined command TPC is used to increase or decrease transmit power terminal (200); characterized by a detector (216) uplink synchronization adapted to recognize a pattern of TPC commands expected to be directed to the terminal (200) from the at least one node to which the terminal (200) would be connected until synchronization is achieved an uplink channel between the terminal (200) and at least one node; wherein, if the expected TPC command pattern is recognized, the combined TPC command is not based on the TPC commands from the node to which the terminal (200) would be connected.

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Granted
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16 members in 11 offices

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Priority claims
DocumentOfficeKindDate
83992604United States of AmericaA

Members16

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DocumentOfficeKind
US2005250526A1United States of AmericaA1
WO2005109671A1World Intellectual Property Organization (WIPO)A1
KR20070007907ARepublic of KoreaA
EP1762017A1European Patent Office (EPO)A1
CN1998159AChinaA
JP2007536843AJapanA
HK1109517A1Hong Kong, ChinaA1
EP1762017B1European Patent Office (EPO)B1
AT403285TThis recordAustriaT
DE602005008597D1GermanyD1
US7437175B2United States of AmericaB2
ES2310827T3SpainT3
PL1762017T3PolandT3
CN1998159BChinaB
JP4616336B2JapanB2
KR101143148B1Republic of KoreaB1