Communication of plain information during channel access
First Claim
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1. A method for modulation of channel access parameters for communication of user information during physical channel acquisition, during which multiple transmitters access said channel, comprising the steps of:
- a. defining a channel access scheme and at least one parameter in said scheme;
b. defining for said parameter a coarse resolution part in form of N*Δ and
a fine resolution part in form of n*δ
, such that said parameter is equal to (N*Δ
+n*δ
) wherein N and n are integer numbers, Δ and
δ
are magnitudes of said parameter and Δ
larger than n*δ
;
c. independently configuring N according to said access scheme;
d. encoding n according to said user information;
e. accessing the channel employing said parameter.
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Abstract
A method for communication of plain information during channel access, according to a pre-defined channel access scheme, such as TDMA or FDMA or CDMA, by slightly modulating in a transmitter a parameter related to the channel access, such as time of transmission or frequency of transmission, using this modulation to encode plain information, while keeping the channel and the compatible receiver tolerant to this slight modulation.
21 Citations
20 Claims
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1. A method for modulation of channel access parameters for communication of user information during physical channel acquisition, during which multiple transmitters access said channel, comprising the steps of:
-
a. defining a channel access scheme and at least one parameter in said scheme; b. defining for said parameter a coarse resolution part in form of N*Δ and
a fine resolution part in form of n*δ
, such that said parameter is equal to (N*Δ
+n*δ
) wherein N and n are integer numbers, Δ and
δ
are magnitudes of said parameter and Δ
larger than n*δ
;c. independently configuring N according to said access scheme; d. encoding n according to said user information; e. accessing the channel employing said parameter. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A device for modulation of channel access parameters for transmission of user information during physical channel acquisition, during which multiple transmitters access said channel, comprising at least a transmitter coupled to controller, said transmitter configured to access the channel according to an access scheme, said controller configured to control at least one parameter of said access scheme, said parameter defined with a coarse resolution part in form of N*Δ
- plus a fine resolution part in form of n*δ
such that N and n are integer numbers, Δ and
δ
are magnitudes of said parameter and Δ
>
n*δ
, wherein said controller configured to independently configure N according to said access scheme, and encode n according to said user information, and said transmitter configured to access the channel employing said parameter. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
- plus a fine resolution part in form of n*δ
-
16. A receiver for detection of user information communicated from a transmitter during physical channel acquisition, said receiver comprising at least a demodulator coupled to a controller, said demodulator configured to detect at least one pre-defined parameter of said channel access scheme in a received signal, said parameter configured to the sum of a coarse resolution part in form of N*Δ
- and a fine resolution part in form of n*δ
wherein N and n are integer numbers, Δ and
δ
are magnitudes of said parameter and Δ
>
n*δ
; and
couple said detected parameter to said controller, said controller configured to independently determine n, and accordingly decode said user information. - View Dependent Claims (17, 18, 19, 20)
- and a fine resolution part in form of n*δ
Specification