1. A beamforming training method comprising:
performing a sector sweep wherein the sector sweep comprises:
determining at least part of a receiver vector;
determining at least part of a first transmitter vector;
transmitting a first sounding vector based on the first transmitter vector;
receiving a second sounding vector utilizing the receiver vector;
determining a parameter of the second sounding vector;
performing a directional transmission based on the parameter and the first transmitter vector; and
terminating the beamforming training when a predetermined condition is met.
2. The method of claim 1, wherein the parameter is beamformed channel gain.
3. The method of claim 1, wherein determining the at least part of the first transmitter vector comprises:
determining a maximum ratio transmission (MRT) vector for the at least part of the first transmitter vector, wherein the parameter is a quantized MRT vector based on the first transmitter vector.
4. The method of claim 1, further comprising:
reducing the information exchanged between a network controller and a station by transmitting back the parameter as part of a second transmitter vector that is orthogonal to the first transmitter vector.
5. The method of claim 4, further comprising:
computing the second transmitter vector and sending the second transmitter vector to the transmitter.
6. The method of claim 1, wherein terminating the beamforming training when a predetermined condition is met comprises:
terminating the beamforming training when the predetermined condition is met, wherein the predetermined condition is a convergence of a transmit weight vector and a receive weight vector.
7. The method of claim 1, further comprising terminating the beamforming training after one of a predetermined number of steps or a signal to noise ratio.
8. A network controller comprising:
a beam controller to adjust a beam during a beamforming training sequence;
a sensor to sense at least one channel parameter during the beamforming training sequence and to acquired data in response to beamforming training sequences; and
a configuration module to control a plurality of beamforming training sequences, the training sequences comprising training transmissions, the controlling comprising:
configuring a subsequent training transmission to provide information related to a convergence of transmit weights and receive weights, the configuration module to create a beamforming training sequence wherein the subsequent training transmission utilizes data acquired from more than one past training transmission.
9. The network controller of claim 8, comprising a transceiver and an antenna array coupled to the beam controller.
10. The network controller of claim 8, wherein the sensor is a signal to noise sensor or a signal to interference plus noise sensor.
11. The network controller of claim 8, wherein the beamforming training sequence comprises sending and receiving vectors tailored to converge the transmit and receive weights.
12. The network controller of claim 8, configured to communicate on a millimeter wave network.
13. A wireless communication system comprising:
a network controller to perform a sector sweep wherein the sector sweep comprises:
determining at least part of a receiver vector;
determining at least part of a first transmitter vector;
transmitting a first sounding vector based on the first transmitter vector;
receiving a second sounding vector utilizing the receiver vector;
determining a parameter of the second sounding vector;
performing a directional transmission based on the parameter and the first transmitter vector; and
terminating the beamforming training when a predetermined condition is met.
14. The wireless communication system of claim 13, wherein the parameter is beamformed channel gain.
15. The wireless communication system of claim 13, wherein determining the at least part of the first transmitter vector comprises:
determining a maximum ratio transmission (MRT) vector for the at least part of the first transmitter vector, wherein the parameter is a quantized MRT vector based on the first transmitter vector.
16. The wireless communication system of claim 13, wherein the sector sweep further comprises:
reducing the information exchanged between the network controller and a device by transmitting back the parameter as part of a second transmitter vector that is orthogonal to the first transmitter vector.
17. The wireless communication system of claim 13, wherein the sector sweep further comprises:
computing a second transmitter vector and sending the second transmitter vector to the transmitter.
18. The wireless communication system of claim 13, wherein terminating the beamforming training when a predetermined condition is met comprises:
terminating the beamforming training when the predetermined condition is met,
wherein the predetermined condition is a convergence of a transmit weight vector and a receive weight vector.
19. The wireless communication system of claim 13, wherein terminating the beamforming training when a predetermined condition is met comprises:
terminating the beamforming training after one of a predetermined number of steps or a signal to noise ratio.
20. The wireless communication system of claim 13, wherein a transmitter transmits a synthesized result and a receiver computes an MRT vector based on the synthesized result.
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 pneumatic tire having a wire-reinforced component comprising
(A) a metallic wire; and
(B) a rubber composition contacting the wire, the rubber composition comprising
(1) a rubber; and
(2) from 2 to 20 parts by weight, per 100 parts by weight of rubber (phr) of at least one carboxylic acid selected from the group consisting of salicylic acid and dithidipropionic acid;
wherein the wire-reinforced rubber component is a bead.
2. The tire of claim 1 wherein said rubber comprises a member selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber, carboxylated acrylonitrile-butadiene rubber and mixtures thereof.
3. The tire of claim 1 further comprising an insitu resin comprising a methylene donor and methylene acceptor.
4. The tire of claim 3 wherein said methylene donor comprises a member selected from the group consisting of hexamethylenetetramine, hexakis-(methoxymethyl)melamine, N,N\u2032,N\u2033-trimethylN,N\u2032,N\u2033-trimethylolmelamine, hexamethylolmelamine, N,N\u2032,N\u2033-dimethylolmelamine, N-methylolmelamine, N,N\u2032-dimethylolmelamine, N,N\u2032,N\u2033-tris(methoxymethyl)melamine, N,N\u2032N\u2033-tributyl-N,N\u2032,N\u2033-trimethylol-melamine, hexamethoxymethylmelamine, and hexaethoxymethylmelamine.
5. The tire of claim 3 wherein the methylene donor comprises hexamethoxymethylmelamine.
6. The tire of claim 3 wherein the methylene donor comprises hexamethylene tetramine.
7. The tire of claim 3 wherein the amount of methylene donor ranges from 0.5 to 4 phr.
8. The tire of claim 3, where the methylene acceptor comprises a member selected from resorcinol, resorcinolic derivatives, monohydric phenols and their derivatives, dihydric phenols and their derivatives, polyhydric phenols and their derivatives, unmodified phenol novolak resins, modified phenol novolak resin, resorcinol novolak resins and mixtures thereof.
9. The tire of claim 1, wherein the methylene acceptor comprises resorcinol.
10. The tire of claim 1, wherein the rubber component is a wirecoat.