EP0825728A2
Expired / Lapsed
EP
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Communication method and apparatus with transmission power control
Assignee: Sony Corp
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Filing: 1997-08-22
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Granted: —
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Expires: 2017-08-22
Abstract
Abstract A communication method between a first station and a second station with a full-duplex for transmission power control according to the present invention, includes a receiving step at the second station of receiving an information transmitted from the first station, a first processing step at the second station of processing a first procedure after the receiving step, a second processing step at said second station of processing a second procedure for comparing an output value in said first processing step with a variable reference value set in response to a reception condition, a transmission step at the second station of transmitting a power control information generated in the second processing step to the first station, and a power control step at the first station of controlling a transmission power by the power control information.
Inventors
- 👤 Mitsuhiro Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 16:35
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/18; H04W52/22; H04W52/228; H04W52/06; H04W52/08; H04W52/12; H04W52/20; H04W52/221; H04W52/24
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
110 words
A communication method between a first station and
a second station with a full-duplex for transmission power
control, comprising the steps of: receiving at said second station an information
transmitted from said first station; performing at said second station a first processing
procedure after said receiving step; performing at said second station a second processing
procedure for comparing an output value in said first
processing procedure with a variable reference value set in
response to a reception condition; transmitting from said second station power control
information generated in said second processing procedure to
said first station; and controlling at said first station a transmission power
by said power control information.
Claim 2
Dependent Claim
30 words
A communication method according to claim 1,
wherein said first processing procedure is a procedure for
estimating a quality of a communication path from a status of
a received signal.
Claim 3
Dependent Claim
43 words
A communication method according to claim 2,
wherein said variable reference value set in response to a
reception condition in said second processing step is a
difference between an estimated error value of a decoded
received signal and a predetermined fixed reference value.
Claim 4
Dependent Claim
47 words
A communication method according to claim 3,
wherein said variable reference value set in response to a
reception condition in said second processing step is an
accumulated value of a difference between an estimated error
value of a decoded received signal and a predetermined fixed
reference value.
Claim 5
Dependent Claim
83 words
A communication apparatus with a transmission
power control in full-duplex, comprising: a receiving means for receiving information; a first processing means for processing a first
procedure for an output signal of said receiving means; a second processing means for processing a second
procedure for comparing an output value in said first
processing means with a variable reference value set in
response to a reception condition; and a transmission means for transmitting an output signal
of said second processing means as power control information.
Claim 6
Dependent Claim
34 words
A communication apparatus according to claim 5,
wherein said first procedure at said first processing means
is a procedure for estimating a quality of a communication
path from a status of a received signal.
Claim 7
Dependent Claim
43 words
A communication apparatus according to claim 6,
wherein said variable reference value set in response to a
reception condition in said second processing step is a
difference between an estimated error value of a decoded
received signal and a predetermined fixed reference value.
Claim 8
Dependent Claim
47 words
A communication apparatus according to claim 7,
wherein said variable reference value set in response to a
reception condition in said second processing step is an
accumulated value of a difference between an estimated error
value of a decoded received signal and a predetermined fixed
reference value.
Claim 9
Dependent Claim
43 words
A communication apparatus according to claim 7 or
8, wherein said procedure for obtaining an estimated error
value of a decoded received signal in said second processing
means is a procedure for comparing a previously decoded code
with a re-encoded code after decoding.
Claim 10
Dependent Claim
45 words
A communication apparatus according to any one of
claims 6 to 9, wherein said procedure for estimating a
quality of a communication path at said first processing
means is a procedure for calculating a ratio of an estimated
noise power to an estimated received power.
Claim 11
Dependent Claim
41 words
A communication apparatus according to any one of
claims 5 to 10, wherein said communication apparatus is a
subscriber, said receiving means receives a signal
transmitted from a base station, and said transmission means
transmits an information to said base station.
Claim 12
Dependent Claim
44 words
A communication apparatus according to any one of
claims 5 to 11, wherein said communication apparatus is a
base station, said receiving means receives a signal
transmitted from a plurality of subscribers, and said
transmission means transmits an information to said plurality
of subscribers.
References Cited (Backward Citations)
No citation records indexed.
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