Method and apparatus for generating pilot strength measurement messages
AssigneeQUALCOMM Incorporated
InventorsYu-Cheun Jou, Jun Wang, Ramin Rezaiifar, Baaziz Achour, Tao Chen
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Abstract
A method and apparatus for generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station traveling in a multi-carrier wireless communication system. In a multi-carrier system, the mobile station receives the pilot channel of a base station on multiple carrier frequencies simultaneously. Fading may vary from carrier frequency to carrier frequency. New pilot strength definitions are used by the mobile station in a set of rules transmitted by the base station. The set of rules determines autonomous generation and transmission of PSMMs by the mobile station upon detection of pilots.
Claims4
An apparatus generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station in a multi-carrier wireless communication system, comprising:
- means for receiving a plurality of pilots at a mobile station, wherein the plurality of pilots are transmitted from at least one base station;
- means for using a first pilot strength definition defined by the relationship:
- PS2=10×log{[(pilot Ec/Io)1/Δ1+(pilot Ec/Io)2/Δ2+(pilot Ec/Io)i/Δi]/i},
- where (pilot Ec/Io)i is the pilot Ec/Io measured on the i-th carrier frequency, Δi is the ratio between the transmit power of pilot i and the transmit power of the primary pilot;
- means for checking a set of rules, wherein the set of rules is for generating the psmm by manipulating the first pilot strength definition;
- and
- means for generating the psmm for transmission from the mobile station.
An apparatus for generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station in a multi-carrier wireless communication system, comprising:
- means for receiving a plurality of pilots at a mobile station, wherein the plurality of pilots are transmitted from at least one base station;
- means for using a first pilot strength definition defined by the relationship:
- PS3=10×log{max[(Pilot Ec/Io)1, (Pilot Ec/Io)2, . . . ,(Pilot Ec/Io)i,]},
- where (Pilot Ec/Io)i is the pilot Ec/Io measured on the i th carrier frequency;
- means for checking a set of rules, wherein the set of rules is for generating the PSMM by manipulating the first pilot strength definition;
- and
- means for generating the PSMM for transmission from the mobile station.
An apparatus generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station in a multi-carrier wireless communication system, comprising:
- means for receiving a plurality of pilots at a mobile station, wherein the plurality of pilots are transmitted from at least one base station;
- means for using a first pilot strength definition defined by the relationship:
- PS4=10×log{max[(Pilot Ec/Io)1/Δ1, (Pilot Ec/Io)2/Δ2,(Pilot Ec/Io)i/Δi]},
- where (Pilot Ec/Io)i is the pilot Ec/Io measured on the i th carrier frequency, Δi is the ratio between the transmit power of pilot i and the transmission power of the primary pilot;
- means for checking a set of rules, wherein the set of rules is for generating the PSMM by manipulating the first pilot strength definition;
- and
- means for generating the PSMM for transmission from the mobile station.
An apparatus for generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station in a multi-carrier wireless communication system, comprising:
- means for receiving a plurality of pilots at a mobile station, wherein the plurality of pilots are transmitted from at least one base station;
- means for using a set of pilot strength definitions, wherein the set of pilot strength definitions comprise the set (PS51, PS52, . . . , PS5i), and each PS5i is defined by:
- PS5i=10×log[(Pilot Ec/Io)i],
- corresponding to the i th carrier frequency;
- means for checking a set of rules, wherein the set of rules is for generating the PSMM by manipulating the set of pilot strength definitions;
- and
- means for generating the PSMM for transmission from the mobile station.
Dependencies are inferred from the claim text.