Communication system including diversity antenna queuing
First Claim
Patent Images
1. A wireless communications system comprising:
- a first transponder adapted to be coupled to one of a plurality of selectable antennas, and having a stack including locations holding data representing a plurality of antennas, the stack defining an order in which antennas will be used to attempt communication; and
a second transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by data in one location of the stack for communication with the second transponder, and, if successful communication with the second transponder is not established, the first transponder uses different antennas in successive communications attempts, in the defined order, and wherein the first transponder rearranges the stack after a successful communication if the successful communication did not occur using the antenna defined by data in the first mentioned location of the stack.
4 Assignments
0 Petitions
Accused Products
Abstract
A wireless communications system comprising a first transponder having a plurality of selectable antennas, and having a stack including locations holding data representing antennas, the stack defining an order in which antennas will be used to attempt communication; a second transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by data in one location of the stack for communication with the second transponder, and, if successful communication with the second transponder is not established, the transponder uses an antenna defined by data in another if location of the stack.
-
Citations
43 Claims
-
1. A wireless communications system comprising:
-
a first transponder adapted to be coupled to one of a plurality of selectable antennas, and having a stack including locations holding data representing a plurality of antennas, the stack defining an order in which antennas will be used to attempt communication; and a second transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by data in one location of the stack for communication with the second transponder, and, if successful communication with the second transponder is not established, the first transponder uses different antennas in successive communications attempts, in the defined order, and wherein the first transponder rearranges the stack after a successful communication if the successful communication did not occur using the antenna defined by data in the first mentioned location of the stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A radio frequency communications system comprising:
-
a first radio frequency transponder adapted to be coupled to one of a plurality of selectable antennas, and including a stack having rows holding data representing antennas, including a first row, a second row, and a last row, and rows between the second and last rows, the stack defining an order, from the first row to the last row, in which antennas will be used to attempt communication; a second radio frequency transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by data in the first row of the stack for communication with the ii second transponder, and, if successful communication with the second transponder is not established, the transponder uses an antenna defined by data in the second row of the stack, and, if successful communication with the second transponder is not established, the transponder uses an antenna defined by data in the next row of the stack, and so on until successful communication with the second transponder is established; and a data arranger selectively rearranging the order of the data in the stack, and operable in a first mode, wherein data representing the first antenna that resulted in successful communication is moved to the first row of the stack, and a second mode, wherein data representing the first antenna that resulted in successful communication is swapped with data in the row adjacent to the row holding the data representing the first antenna that resulted in successful communication and closer to the first row than the last row. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A radio frequency communications method comprising:
-
defining a queue having rows holding data representing antennas, including a top row and a bottom row, the queue defining an order, from the top of the queue to the bottom of the queue, in which antennas will be used to attempt communication; causing a first transponder to use an antenna defined by data in the top row of the queue for communication with a second transponder, and, if successful communication with the second transponder is not established, causing the first transponder to use an antenna defined by data in the next highest row of the queue, and, if successful communication with the second transponder is not established, causing the first transponder to use an antenna defined in the next highest row of the queue and so on until successful communication with the second transponder is established; and rearranging the order of the data in the queue in accordance with a selected one of a first mode, wherein data representing the first antenna that resulted in successful communication is moved to the top of the queue, and a second mode, wherein data representing the first antenna that resulted in successful communication is swapped with data in the row above the row holding the data representing the first antenna that resulted in successful communication. - View Dependent Claims (17, 18, 19, 20)
-
-
21. A backscatter radio frequency communications system comprising:
-
a plurality of transmit antennas and receive antennas; a first radio frequency transponder selectively coupled to an antenna pair defined by one of the transmit antennas and one of the receive antennas, and including a stack having rows holding data representing antenna pairs, including a top row and a bottom row, the stack defining an order, from the top of the stack to the bottom of the is stack, in which antennas will be used by the first transponder to attempt communication; a second radio frequency transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna pair defined by data in the top row of the stack for communication with the second transponder, and, if successful communication with the second transponder is not established, the transponder uses an antenna pair defined by data in the next highest row of the stack, and, if successful communication with the second transponder is still not established, the transponder uses an antenna pair defined by data in the next highest row of the stack, and so on until successful communication with the second transponder is established, the first transponder being configured to communicate with the second transponder using backscatter communications wherein, after the first transponder sends data to the second transponder, the first transponder transmits a continuous wave to the second transponder; a dipole antenna coupled to the second transponder, the dipole antenna having two halves, the second transponder being configured to reflect and not reflect the continuous wave by either shorting or not shorting the two halves of the dipole antenna to communicate with the first transponder; and a data arranger configured to rearrange the order of the data in the stack, and operable in a first mode, wherein data representing the first antenna pair that resulted in successful communication is moved to the top of the stack, a second mode, wherein data representing the first antenna pair that resulted in successful communication is swapped with data in the row above the row holding the data representing the first antenna that resulted in successful communication, and a third mode wherein data is the stack is not rearranged regardless of which antenna selection results in successful communication with the second transponder.
-
-
22. A wireless communications system for use with an array of spaced apart antennas, the system comprising:
-
a first transponder configured to be coupled to one of the antennas, and having an array including locations representing respective antennas, the array defining an order in which antennas will be used to attempt communication; and a second transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by one location of the array for communication with the second transponder, and, if successful communication with the second transponder is not established, the first transponder uses different antennas in successive communications attempts, in the defined order, and wherein the first transponder rearranges the order after a succesful communication if the successful communication did not occur using the antenna defined by the one location of the array. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A radio frequency communications system comprising:
-
a first radio frequency transponder adapted to be coupled to one of a plurality of selectable antennas, and including an array having rows holding data representing antennas, including a first row, a second row, and a last row, and rows between the second and last rows, the array defining an order, from the first to the last row, in which antennas will be used to attempt communication; a second radio frequency transponder configured to communicate with the first transponder, wherein the first transponder uses an antenna defined by data in the first row of the array for communication with the second transponder, and, if successful communication with the second transponder is not established, the transponder uses an antenna defined by data in the second row of the array, and, if successful communication with the second transponder is not established, the transponder uses an antenna defined by data in the next row of the array, and so on until successful communication with the second transponder is established; and a data arranger selectively rearranging the order of the data in the array, and operable in the first mode, wherein data representing the first antenna that resulted in successful communication is moved to the first row of the array, and a second mode, wherein data representing the first antenna that resulted in successful communication is swapped with data in the row that is adjacent to the row holding the data representing the first antenna that resulted in successful communication and that is closer to the first row than the last row. - View Dependent Claims (32, 33, 34, 35, 36)
-
-
37. A communications method comprising steps to:
-
define a queue having rows configured to hold data representing antennas, including a top row and a bottom row, the queue defining an order, from the top of the queue to the bottom of the queue, in which antennas will be used to attempt communication; cause a first transponder to use an antenna defined by data in the top row of the queue for communication with a second transponder, and, if successful communication with the second transponder is not established, cause the first transponder to use an antenna defined by data in the next highest row of the queue, and, if successful communication with the second transponder is not established, cause the first transponder to use an antenna defined in the next highest row of the queue and so on until successful communication with the second transponder is established; and rearrange the order of the data in the queue such that data representing the first antenna that resulted in successful communication is swapped with data in the row above the row holding the data representing the first antenna that resulted in successful communication. - View Dependent Claims (38, 39, 40, 41)
-
-
42. A backscatter radio frequency communications system comprising:
-
a plurality of transmit antennas and receive antennas; a first radio frequency transponder selectively coupled to an antenna pair defined by one of the transmit antennas and one of the receive antennas, and including an array having rows holding data representing antenna pairs, including a top row and a bottom row, the array defining an order, from the top of the array to the bottom of the array, in which antennas will be used by the first transponder to attempt communication; a second radio frequency transponder configured to communicate with the first transponder, wherein the first transponder is configured to use an antenna pair defined by data in the top row of the array for communication with the second transponder, and, if successful communication with the second transponder is not established, the first transponder is configured to use an antenna pair defined by data in the next highest row of the array, and, if successful communication with the second transponder is still not established, the first transponder is configured to use an antenna pair defined by data in the next highest row of the array, and so on until successful communication with the second transponder is established, the first transponder being configured to communicate with the second transponder using backscatter communications wherein, the first transponder is configured to transmit a continuous wave to the second transponder after the first transponder sends data to the second transponder; a dipole antenna coupled to the second transponder, the dipole antenna having two halves, the second transponder being configured to reflect and not reflect the continuous wave by either shorting or not shorting the two havles of the dipole antenna to communicate with the first transponder; and a data arranger configured to rearrange the order of the data in the array, and operable in a first mode, wherein data representing the first antenna pair that resulted in successful communication is moved to the top of the array, and a second mode, wherein data representing the first antenna pair that resulted in successful communication is swapped with data in the row above the row holding the data representing the first antenna that resulted in successful communication. - View Dependent Claims (43)
-
Specification