METHODS AND APPARATUS FOR INCREASING DIVERSITY IN DOWNLINK TRANSMISSIONS
First Claim
1. An apparatus for wireless communications, comprising:
- a first antenna;
a second antenna;
a processing system configured to;
generate a frame comprising a preamble having at least one field; and
replicate at least one bit of the at least one field to form a replica of the at least one bit; and
a transmitter configured to;
transmit the at least one bit via the first antenna; and
transmit the replica of the at least one bit via the second antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
Certain aspects of the present disclosure provide methods and apparatus for obtaining second-order downlink spatial diversity within a wireless communication system in accordance with IEEE 802.11ah, for example. One example method generally includes generating a frame comprising a preamble having at least one field, replicating at least one bit of the at least one field to form a replica of the at least one bit, transmitting the at least one bit via a first antenna, and transmitting the replica of the at least one bit via a second antenna. Another example method generally includes generating at least two space-time streams; transmitting, via a first pair of antennas, the at least two space-time streams in a first frequency band; and transmitting, via a second pair of antennas, the at least two space-time streams in a second frequency band.
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Citations
57 Claims
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1. An apparatus for wireless communications, comprising:
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a first antenna; a second antenna; a processing system configured to; generate a frame comprising a preamble having at least one field; and replicate at least one bit of the at least one field to form a replica of the at least one bit; and a transmitter configured to; transmit the at least one bit via the first antenna; and transmit the replica of the at least one bit via the second antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for wireless communications, comprising:
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generating a frame comprising a preamble having at least one field; replicating at least one bit of the at least one field to form a replica of the at least one bit; transmitting the at least one bit via a first antenna; and transmitting the replica of the at least one bit via a second antenna. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless communications, comprising:
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means for generating a frame comprising a preamble having at least one field; means for replicating at least one bit of the at least one field to form a replica of the at least one bit; means for transmitting the at least one bit via a first antenna; and means for transmitting the replica of the at least one bit via a second antenna. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A computer-program product for wireless communications, comprising a computer-readable medium having instructions executable to:
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generate a frame comprising a preamble having at least one field; replicate at least one bit of the at least one field to form a replica of the at least one bit; transmit the at least one bit via a first antenna; and transmit the replica of the at least one bit via a second antenna.
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26. An apparatus for wireless communications, comprising:
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a first antenna; a second antenna; a processing system configured to; generate a frame comprising a preamble having at least one field; and replicate at least one bit of the at least one field to form a replica of the at least one bit; and a transmitter configured to; transmit, via the first and second antennas, the at least one bit at a first frequency; transmit, via the first antenna, the replica of the at least one bit at a second frequency; and transmit, via the second antenna, a negative of the replica of the at least one bit at the second frequency. - View Dependent Claims (27, 28, 29, 30)
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31. A method for wireless communications, comprising:
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generating a frame comprising a preamble having at least one field; replicating at least one bit of the at least one field to form a replica of the at least one bit; transmitting, via a first antenna and a second antenna, the at least one bit at a first frequency; transmitting, via the first antenna, the replica of the at least one bit at a second frequency; and transmitting, via the second antenna, a negative of the replica of the at least one bit at the second frequency. - View Dependent Claims (32, 33, 34, 35)
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36. An apparatus for wireless communications, comprising:
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means for generating a frame comprising a preamble having at least one field; means for replicating at least one bit of the at least one field to form a replica of the at least one bit; means for transmitting, via a first antenna and a second antenna, the at least one bit at a first frequency; means for transmitting, via the first antenna, the replica of the at least one bit at a second frequency; and means for transmitting, via the second antenna, a negative of the replica of the at least one bit at the second frequency. - View Dependent Claims (37, 38, 39, 40)
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41. A computer-program product for wireless communications, comprising a computer-readable medium having instructions executable to:
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generate a frame comprising a preamble having at least one field; replicate at least one bit of the at least one field to form a replica of the at least one bit; transmit, via a first antenna and a second antenna, the at least one bit at a first frequency; transmit, via the first antenna, the replica of the at least one bit at a second frequency; and transmit, via the second antenna, a negative of the replica of the at least one bit at the second frequency.
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42. An apparatus for wireless communications, comprising:
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a first pair of antennas; a second pair of antennas; a processing system configured to generate at least two space-time streams; and a transmitter configured to; transmit, via the first pair of antennas, the at least two space-time streams in a first frequency band; and transmit, via the second pair of antennas, the at least two space-time streams in a second frequency band. - View Dependent Claims (43, 44, 45)
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46. A method for wireless communications, comprising:
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generating at least two space-time streams; transmitting, via a first pair of antennas, the at least two space-time streams in a first frequency band; and transmitting, via a second pair of antennas, the at least two space-time streams in a second frequency band. - View Dependent Claims (47, 48, 49)
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50. An apparatus for wireless communications, comprising:
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means for generating at least two space-time streams; means for transmitting, via a first pair of antennas, the at least two space-time streams in a first frequency band; and means for transmitting, via a second pair of antennas, the at least two space-time streams in a second frequency band. - View Dependent Claims (51, 52, 53)
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54. A computer-program product for wireless communications, comprising a computer-readable medium comprising instructions executable to:
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generate at least two space-time streams; transmit, via a first pair of antennas, the at least two space-time streams in a first frequency band; and transmit, via a second pair of antennas, the at least two space-time streams in a second frequency band.
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55. An access point, comprising:
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a first pair of antennas; a second pair of antennas; a processing system configured to generate at least two space-time streams; a transmitter configured to; transmit, via the first pair of antennas, the at least two space-time streams in a first frequency band; and transmit, via the second pair of antennas, the at least two space-time streams in a second frequency band; and a memory component configured to store the at least two space-time streams before transmission.
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56. An access point, comprising:
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a first antenna; a second antenna; a processing system configured to; generate a frame comprising a preamble having at least one field; and replicate at least one bit of the at least one field to form a replica of the at least one bit; a transmitter configured to; transmit the at least one bit via the first antenna; and transmit the replica of the at least one bit via the second antenna; and a memory component configured to store the frame before transmission.
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57. An access point, comprising:
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a first antenna; a second antenna; a processing system configured to; generate a frame comprising a preamble having at least one field; and replicate at least one bit of the at least one field to form a replica of the at least one bit; a transmitter configured to; transmit, via the first and second antennas, the at least one bit at a first frequency; transmit, via the first antenna, the replica of the at least one bit at a second frequency; and transmit, via the second antenna, a negative of the replica of the at least one bit at the second frequency; and a memory component configured to store the frame before transmission.
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Specification