Author: claimsbot

1. A method for transmitting a signal by a transmitter via Nt antennas in a multiple antenna system using multiple subcarriers, the method comprising:
acquiring a plurality of modulation symbol streams by modulating a transmission signal;
phase-shift based precoding the plurality of modulation symbol streams using a matrix of D*U to output Nt symbol streams; and
transmitting the \u2018Nt\u2019 symbol streams via the Nt antennas,
wherein D is a diagonal matrix and U is a unitary matrix,
wherein U and D are determined such that the plurality of modulation symbol streams are cyclically delayed with a unit of a first delay value when feedback information from a receiver is not used,
wherein U and D are determined such that the plurality of modulation symbol streams are cyclically delayed with a unit of a second delay value, when the feedback information from the receiver is used, and
wherein the first delay value is larger than the second delay value.
2. The method of claim 1, wherein D is determined based on a multiplexing rate.
3. The method of claim 1, wherein D has different phase shift angles for each row of the diagonal matrix.
4. The method of claim 1, wherein U is determined based on a multiplexing rate.
5. The method of claim 1, wherein U is predetermined in a form of a codebook.
6. The method of claim 1, wherein:
the phase-shift based precoding is performed in a form of D*U*X when a number of the multiple antennas is 2 and a multiplexing rate is 2;
a number of the plurality of modulation symbol streams is m; and
X is an m*1 matrix consisting of the plurality of modulation symbol streams.
7. The method of claim 1, wherein:
U is predetermined based on a value of Nt and a multiplexing rate (R); and
phase angles of D are linearly increased according to a frequency index.
8. The method of claim 7, wherein the matrix of D*U is represented as:
(
\u2147

j
\u2062
\u2062

\u03b8
1

\u2062
k
0
\u2026
0
0
\u2147

j
\u2062
\u2062

\u03b8
2

\u2062
k
\u2026
0
\u22ee
\u22ee
\u22f1
0
0
0
0
\u2147

j
\u2062
\u2062

\u03b8

N
t
\u2062
k
)

\u2062

(

U

N

t
\xd7
R
)
,
where U has a dimension of Nt*R and \u2018k\u2019 represents the frequency index.
9. A method for receiving a signal by a receiver in a multiple antenna system using multiple subcarriers, the method comprising:
receiving the signal transmitted from a transmitter via Nt antennas;
performing a function that is opposite to a phase-shift based precoding on the received signal using a matrix of D*U; and
demodulating the signal on which the opposite function was performed,
wherein D is a diagonal matrix and U is a unitary matrix,
wherein U and D are the same matrices determined at the transmitter such that a plurality of modulation symbol streams are cyclically delayed with a unit of a first delay value, when feedback information from the receiver is not used,
wherein U and D are the same matrices determined at the transmitter such that the plurality of modulation symbol streams are cyclically delayed with a unit of a second delay value, when the feedback information from the receiver is used, and
wherein the first delay value is larger than the second delay value.
10. The method of claim 9, wherein D is determined based on a multiplexing rate.
11. The method of claim 9, wherein U is determined based on a multiplexing rate.
12. The method of claim 9, wherein U is predetermined within a codebook.
13. The method of claim 9, wherein:
U is predetermined based on a value of Nt and a multiplexing rate (R); and
phase angles of D are linearly increased according to a frequency index.
14. The method of claim 13, wherein the matrix of D*U is represented as:
(
\u2147

j
\u2062
\u2062

\u03b8
1

\u2062
k
0
\u2026
0
0
\u2147

j
\u2062
\u2062

\u03b8
2

\u2062
k
\u2026
0
\u22ee
\u22ee
\u22f1
0
0
0
0
\u2147

j
\u2062
\u2062

\u03b8

N
t
\u2062
k
)

\u2062

(

U

N

t
\xd7
R
)
,
where U has a dimension of Nt*R and \u2018k\u2019 represents the frequency index.
15. An apparatus for transmitting a signal via Nt antennas in a multiple antenna system using multiple subcarriers, the apparatus comprising:
a mapper acquiring a plurality of modulation symbol streams by modulating a transmission signal; and
a precoder performing a phase-shift based precoding on the plurality of modulation symbol streams using a matrix of D*U to output Nt symbol streams,
wherein D is a diagonal matrix and U is a unitary matrix,
wherein U and D are determined such that the plurality of modulation symbol streams are cyclically delayed with a unit of a first delay value when feedback information from a receiver is not used,
wherein U and D are determined such that the plurality of modulation symbol streams are cyclically delayed with a unit of a second delay value, when the feedback information from the receiver is used, and
wherein the first delay value is larger than the second delay value.
16. The apparatus of claim 15, wherein D is determined based on a multiplexing rate.
17. The apparatus of claim 15, wherein D has different phase shift angles for each row of the diagonal matrix.
18. The apparatus of claim 15, wherein U is determined based on a multiplexing rate.
19. The apparatus of claim 15, further comprising:
a memory unit storing U in a form of a codebook.
20. The apparatus of claim 15, wherein:
U is predetermined based on a value of Nt and a multiplexing rate (R); and
phase angles of D are linearly increased according to a frequency index.
21. The apparatus of claim 20, wherein the matrix of D*U is represented as:
(
\u2147

j
\u2062
\u2062

\u03b8
1

\u2062
k
0
\u2026
0
0
\u2147

j
\u2062
\u2062

\u03b8
2

\u2062
k
\u2026
0
\u22ee
\u22ee
\u22f1
0
0
0
0
\u2147

j
\u2062
\u2062

\u03b8

N
t
\u2062
k
)

\u2062

(

U

N

t
\xd7
R
)
,
where U has a dimension of Nt*R and \u2018k\u2019 represents the frequency index.
22. An apparatus for receiving a signal in a multiple antenna system using multiple subcarriers, the apparatus comprising:
one or more antennas for receiving the signal transmitted from a transmitter via Nt antennas;
a precoder performing a function that is opposite to a phase-shift based precoding on the received signal using a matrix of D*U; and
a demapper demodulating the signal on which the opposite function was performed,
wherein D is a diagonal matrix and U is a unitary matrix,
wherein U and D are the same matrices determined at the transmitter such that a plurality of modulation symbol streams are cyclically delayed with a unit of a first delay value, when feedback information from the apparatus is not used,
wherein U and D are the same matrices determined at the transmitter such that the plurality of modulation symbol streams are cyclically delayed with a unit of a second delay value, when the feedback information from the apparatus is used, and
wherein the first delay value is larger than the second delay value.
23. The apparatus of claim 22, wherein D is determined based on a multiplexing rate.
24. The apparatus of claim 22, wherein U is determined based on a multiplexing rate.
25. The apparatus of claim 22, further comprising:
a memory unit storing U in a form of a codebook.
26. The apparatus of claim 22, wherein:
U is predetermined based on a value of Nt and a multiplexing rate (R); and
phase angles D are linearly increased according to a frequency index.
27. The apparatus of claim 26, wherein the matrix of D*U is represented as:
(
\u2147

j
\u2062
\u2062

\u03b8
1

\u2062
k
0
\u2026
0
0
\u2147

j
\u2062
\u2062

\u03b8
2

\u2062
k
\u2026
0
\u22ee
\u22ee
\u22f1
0
0
0
0
\u2147

j
\u2062
\u2062

\u03b8

N
t
\u2062
k
)

\u2062

(

U

N

t
\xd7
R
)
,
where U has a dimension of Nt*R and \u2018k\u2019 represents the frequency index.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A device for mounting a child seat in a car comprising a frame with two frame tubes having at their ends attachment devices for connecting the frame to car mounted brackets and a slide movable along the frame tubes, the slide having a support surface for supporting the child seat and two or more hooks of which at least one is movable for coupling the child seat on the slide characterized in that the support surface can support a first circular flange of the child seat and the hooks have a circular shape andor are placed in a circle for gripping the first circular flange.
2. The device in accordance with claim 1 whereby the upper surface is parallel to the frame tubes and preferably immediately above their upper surface.
3. The device in accordance with claim 1 whereby the movable hooks have a first position whereby the child seat can be positioned on or removed from the support surface and a second position whereby the hooks can hold the first circular flange against the support surface, and a mechanism for positioning the movable hooks in the first position and the second position.
4. The device in accordance with claim 1, whereby the hooks can grip the first circular flange with their outside circumference.
5. The device in accordance with claim 1 whereby there are three or more hooks.
6. The device in accordance with claim 5 whereby the movable hooks can move in three or more radial directions.
7. The device in accordance with claim 1 whereby the movable hooks can slide along a linear guide between the first position and the second position.
8. The device in accordance with claim 1 whereby the slide has at the locations of the hooks one or more second flange parts so that in the second position the hooks grip both the first circular flange and a second flange part.
9. The device in accordance with claim 1 whereby the movable hooks have spring means for moving it to the first position and holding means for holding it in the second position.
10. The device in accordance with claim 1 whereby a cam disc rotatable around a first axis and preferably placed in the centre of the hooks can move the movable hooks, the cam disc having cam surfaces, each of which presses against a side plane of the movable hook.
11. The device in accordance with claim 10 whereby the cam surfaces are shaped such that the spring means prevent rotation of the cam disc when the movable hooks are in the second position.
12. The device in accordance with claim 10 whereby the cam disc is rotated by a handle rotatable around a second axis and provided with means for coupling the rotation of the cam disc and the handle.
13. The device in accordance with claim 1 whereby the slide has a mounting position whereby it is located away from the attachment devices and is provided with blocking means for preventing the slide to move from the mounting position towards the attachment devices.
14. The device in accordance with claim 13 whereby the blocking means comprise pins that can extend from each frame tube.
15. The device in accordance with claim 14 whereby each pin is connected to a first sensor determining whether the attachment device is connected to the car mounted anchorage.
16. The device in accordance with claim 13, whereby by the frame tubes are provided with notches and the slide with a catch for preventing the slide to move in the direction away from the attachment devices.
17. The device in accordance with claim 16 whereby the catch is connected to a second sensor for determining whether a child seat is placed on the support surface andor the circular flange is fully positioned on the support surface.
18. The device in accordance with claim 13 whereby the frame tubes each have a button for disconnecting the attachment device from the car mounted bracket, which button is covered andor deactivated by the slide when the slide is not in the mounting position.
19. The device of claim 1 further including a child seat mounted on said device whereby the child seat has a circular flange that can rest on the support surface and that can be gripped by the hooks.
20. The device of claim 19 whereby the circular flange has on its inner diameter a cylindrical surface that can rotate around the hooks.

1. A method for the effective identification of neighboring nodes in a mobile ad-hoc network, wherein each node transmits within a given time raster a message signalling its presence which is acknowledged through the transmission of an acknowledgement message by at least one node which receives the message signalling the presence for the first time,
wherein the time raster in which the message signalling a presence is transmitted is varied by a node which is disposed outside an ad-hoc network.
2. The method according to claim 1,
wherein the time raster in which the message signalling its presence is transmitted from a node disposed outside an ad-hoc network directly after a start-up of the node disposed outside an ad-hoc network, is adjusted to a comparatively high value, which is successively reduced until a previously determined minimal-value time raster is reached.
3. The method according to claim 1,
wherein directly after it has identified that it is now disposed outside an ad-hoc network, a node transmits the message signalling its presence in a time raster with a comparatively high value, which is successively reduced until a previously determined minimal-value time raster is reached.
4. The method according to any one of claim 1,
wherein the acknowledgement message is transmitted directly after the reception of the message signalling the presence.
5. The method according to claim 4,
wherein the acknowledgement message is transmitted immediately after the reception of the message signalling a presence.
6. The method according to claim 4,
wherein the acknowledgement message is transmitted after the reception of the message signalling a presence with the addition of a statistical delay time associated in each case with the respective node.
7. The method according to claim 1,
wherein a node disposed outside an ad-hoc network transmits a message signalling a presence within a previously specified, constant time raster from the time of the reception of the acknowledgement message.
8. The message according to claim 1,
wherein a node disposed outside an ad-hoc network transmits a message signalling a presence within a previously specified, constant time raster from the time of the reception of a message signalling a presence of another node, which it acknowledges with an acknowledgement signal.
9. The method according to claim 1,
wherein a node is integrated in an ad-hoc network with at least one further node as soon as one of the two nodes receives the acknowledgement message to its transmitted message signalling a presence from the respectively other node.
10. The method according to claim 1,
wherein a node is disposed within an ad-hoc network so long as it receives a further message signalling a presence of a node of the ad-hoc network within a previously specified time interval since the last reception time of a message signalling a presence of a node of the ad-hoc network.
11. The method according to claim 1,
wherein a secured andor encrypted symmetrical data transmission between at least two nodes disposed within an ad-hoc network is implemented as soon as one of the two nodes receives a further acknowledgement message to its transmitted acknowledgement message from the respectively other node.
12. The method according to claim 1,
wherein the identification of neighboring nodes in a mobile ad-hoc network precedes a routing-planning, preferably a routing-planning according to the Optimised-Link-State-Routing protocol.
13. A mobile ad-hoc network with at least one node disposed inside or outside the mobile ad-hoc network and transmitting a message signalling its presence within a given time raster and at least one node disposed inside or outside the mobile ad-hoc network receiving the message signalling the presence for the first time and acknowledging the latter through transmission of an acknowledgement message,
wherein the time raster for the transmission of the message signalling a presence is varied in the case of a node disposed outside the ad-hoc network.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A monomanual electric fishing rod and reel comprising:
a rear rod section;
an electric reel having a removable housing, the reel removably attachable in circuit with the rear rod section;
an electric gear motor disposed within the housing, the motor in operational communication with the reel;
a control module disposed upon the rear rod section, the control module having a power button and a throttle button disposed thereupon, the control module in operational communication with the motor;
a CPU disposed within the rear rod section, the CPU in operational communication with the control module;
a handle releasably attachable to the rear rod section;
a battery disposed within the handle;
a charger port disposed upon the handle;
wherein each of a plurality of depression tactics initiates each of a plurality of command signals relayed from the CPU to the electric reel, wherein the speed, acceleration, and rotation of the reel is controllable and the monomanual electric fishing rod and reel is operable one-handedly.
2. The monomanual electric fishing rod and reel of claim 1 wherein the reel further comprises:
a support arm disposed upon the housing;
a foot portion disposed atop the support arm;
a plurality of contacts disposed upon the foot portion;
wherein the foot portion releasably interconnects with the rear rod section and the plurality of contacts engage in circuit with the control module, the CPU, and the battery, to operationally engage the motor, when the reel is releasably attached to the rear rod section.
3. The monomanual electric fishing rod and reel of claim 2 wherein the CPU is configured to deactivate the motor when extant line drags from the reel.
4. The monomanual electric fishing rod and reel of claim 3 wherein the handle further comprises an aft end, the charger port disposed at the aft end whereby a charger attachment is connectable to an extant power source and the battery is rechargeable thereby.
5. The monomanual electric fishing rod and reel of claim 4 wherein holding the power button depressed activates the electric reel and increased pressure upon the power button increases the speed of the reel whereby a range of reeling speeds is operable.
6. The monomanual electric fishing rod and reel of claim 5 wherein decreased pressure upon the power button decreases the speed of the reel and release of the power button deactivates the reel.
7. The monomanual electric fishing rod and reel of claim 6 wherein the rear rod section further comprises:
a rearward end;
a male quick-disconnect connector disposed at the rearward end;
wherein the rear rod section is releasably attachable in circuit to the handle.
8. The monomanual electric fishing rod and reel of claim 7 wherein the handle further comprises:
a front end;
a female quick-disconnect connector disposed on the front end;
wherein the female quick-disconnect connector releasably engages with the male quick-disconnect connector and the handle is releasably attachable in circuit to the rear rod section thereby.
9. A monomanual electric fishing rod and reel comprising:
an electric reel comprising:
a water proof housing;
a direct drive electric gear motor disposed within the housing, the electric gear motor in operationally engaging a drive shaft;
a rotor disposed upon the housing, the rotor in operational communication with the drive shaft;
a casting trigger pivotally disposed upon the rotor;
an anti-reverse lever disposed upon the housing;
a bail in operational communication with the casting trigger;
a drag adjustment knob disposed upon the reel;
a support arm disposed upon the reel, said support arm comprising:
an arm portion affixed to the housing;
an upper end;
a foot portion disposed perpendicularly upon the upper end;
a front foot section disposed upon the foot portion;
a rear foot section disposed upon the foot portion;
a plurality of contacts disposed upon the foot portion;
a rear rod section releasably connectable to the support arm, the rear rod section comprising:
a rearward end;
a male quick-disconnect connector disposed at the rearward end;
a slip ring disposed proximal to the male quick-disconnect connector, the slip ring configured to releasably receive the rear foot section of the reel support arm when the reel is mounted to the rear rod section;

a CPU disposed within the rear rod section;
a control module disposed upon the rear rod section;
a power button disposed upon the control module;
a throttle button disposed upon the control module;
a mount slot disposed upon the rear rod section;
a handle releasably attachable to the rear rod section, the handle comprising:
a front end;
an aft end;
a female quick-disconnect connector disposed at the front end;
a charger port disposed at the aft end;
a rechargeable Lithium-ion battery disposed within the handle;
a charger attachment removably attachable to the charger port, the charger attachment interconnectable with an extant power source whereby the battery is rechargeable;

a plurality of wiring interconnecting the power button, the throttle button, the CPU, and the electric motor, said plurality of wring disposed within the rear rod section, the support arm, and the housing;
wherein the handle releasably connects the battery in circuit with the plurality of wiring when the handle is releasably attached to the rear rod section;
wherein the power button activates the electric reel and the throttle button controls the speed and acceleration of the electric motor, whereby the monomanual electric fishing rod and reel is operable one-handedly.
10. The monomanual electric fishing rod and reel of claim 9 wherein each of a plurality of depression tactics initiates each of a plurality of command signals relayed from the CPU to the electric reel, wherein the speed, acceleration, and rotation of the rotor is controllable.
11. The monomanual electric fishing rod and reel of claim 10 wherein holding the power button depressed activates the electric reel and increased pressure upon the power button increases the speed of the reel whereby a range of reeling speeds is operable.
12. The monomanual electric fishing rod and reel of claim 11 wherein decreased pressure upon the power button decreases the speed of the reel and release of the power button deactivates the reel.
13. The monomanual electric fishing rod and reel of claim 12 wherein the throttle button selects among a plurality of depression tactics whereby the acceleration of the reel is set at different speeds activatable when the power button is depressed.