Source: https://patents.google.com/patent/US8059727B2/en
Timestamp: 2019-04-21 23:20:42+00:00

Document:
According to another embodiment, the present invention provides a time division duplex (TDD) wireless repeater configuration including a first TDD wireless repeater capable of recognizing that it is operating in a Multiple Input Multiple Output (MIMO) wireless network, and a second TDD wireless repeater spatially separated from the first TDD wireless repeater by a predetermined distance or may be in the same package and may not be physically seperate. The first TDD wireless repeater is capable of identifying a presence of the second TDD wireless repeater, entering into a mode with the second TDD wireless repeater to receive wireless transmissions in a synchronous manner with the second TDD wireless repeater on a same first frequency, and of re-transmitting the wireless transmissions in a manner that is synchronous with the second TDD wireless repeater on a same second frequency. In an alternative embodiment, two or more repeaters may be physically integrated into the same package simplifying synchronization control. In yet another alternative embodiment, the physical layer repeaters can be coupled using telephone wiring or household wiring is described in greater detail in the applications noted below. In still another alternative embodiment, the physical layer repeaters can repeat in a non-frequency translating mode where receive and transmit isolation becomes the key issue. Accordingly, physical separation of the client side and AP side antennae must be achieved using a variety of methods such as using household wiring, again, as discussed in the incorporated applications noted below.
Subsequently, after the transmitting network station 102 receives the CTS packet, at 602, the transmitting network station then transmits the MIMO packet having a time duration (T), as defined either in the MIMO RTS packet and/or the MIMO CTS packet, to the receiving network station. At 606 and 608, both the master and slave repeaters 106, 108 are triggered and begin to operate in MIMO mode to transmit on F2 MIMO packets received on F1, or vice versa, depending upon the transmission direction, which is determined as follows.
FIG. 6 is a flow diagram illustrating how the master repeater 106 operating in MIMO mode determines the direction in which to repeat a MIMO signal based on the transmission, or lack of transmission, of RTS and CTS signals. At 702, the master repeater 106 is in idle mode with its transmit function off. At 704, it detects whether it has received a CTS packet including MIMO duration information transmitted from either the transmitting network station 102 or the receiving network station 104 on F1. If the master repeater 106 detects receipt of the CTS packet, then at 706 the master repeater 106 determines if it had previously received an RTS packet transmitted from the transmitting network station 102 on F2. If so, the master repeater 106 determines that the message indicates that the network 100 is operating in the RTS/CTS Mode in which the client transmitting device 106 transmits the RTS packet, and in which the client receiving device transmits the CTS packet, prior to the client transmitting device 102 transmitting a MIMO signal. Both the master and slave repeaters 106, 108 transmit in a synchronous manner on F1 and receive on F2 as indicated at 708 until the master repeater 106 determines at 710, 712 that F2 is no longer active, or in other words that the MIMO signal is no longer being received. The master repeater 106 communicates with the slave repeater 108 to force the slave repeater 108 to operate in the RTS/CTS Mode.
and wherein after MIMO signals are detected on both the same first frequency and the same second frequency, the first TDD wireless repeater is further capable of simultaneously re-transmitting a first portion of the wireless transmissions while receiving a second portion of the wireless transmissions.
2. The TDD wireless repeater configuration of claim 1, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
3. The TDD wireless repeater configuration of claim 2, wherein the master repeater is adapted to re-transmit the wireless transmissions independently of the slave repeater, and the slave repeater is for re-transmitting the wireless transmissions only after re-transmission of the wireless transmissions by the master repeater.
4. The TDD wireless repeater configuration of claim 3, wherein the master repeater is adapted to communicate a master/slave protocol to the slave repeater to activate the slave repeater in a slave mode.
5. The TDD wireless repeater configuration of claim 2, wherein the slave repeater includes an oscillation detection circuit for identifying whether a frequency translation direction is erroneously chosen by the master repeater and for terminating re-transmission of the wireless transmissions.
6. The TDD wireless repeater configuration of claim 2, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD frequency translating wireless repeater and a second TDD frequency translating wireless repeater.
7. The TDD wireless repeater configuration of claim 2, wherein the master repeater comprises a repeater that is first to be activated, or a repeater having the strongest signal power with respect to a MIMO base station.
8. The TDD wireless repeater configuration of claim 2, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD non-frequency translating wireless repeater and a second TDD non-frequency translating wireless repeater.
9. The TDD wireless repeater configuration of claim 1, wherein the second TDD wireless repeater is capable of simultaneously re-transmitting the wireless transmissions at the same time as receiving the wireless transmissions.
10. The TDD wireless repeater configuration of claim 1, wherein the first TDD wireless repeater is capable of simultaneously re-transmitting the wireless transmissions on the same first frequency at the same time as receiving the wireless transmissions on the same second frequency.
11. The TDD wireless repeater configuration of claim 1, wherein the first TDD wireless repeater stops transmitting on the second frequency after the first TDD wireless repeater no longer detects the presence of the received signal on the first frequency.
wherein the slave repeater is adapted to re-transmit the wireless transmissions during periods of MIMO operation as designated by MIMO device generated messages, and the master repeater is adapted to re-transmit the wireless transmissions during both MIMO and non-MIMO periods of operation.
and wherein after MIMO signals are detected on both the first frequency and the second frequency, the first TDD wireless repeater is further capable of simultaneously re-transmitting a first portion of the wireless transmissions while receiving a second portion of the wireless transmissions.
14. The TDD wireless repeater configuration of claim 13, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater, and further comprising the second TDD wireless repeater.
15. The TDD wireless repeater configuration of claim 14, wherein the master repeater is adapted to re-transmit the wireless transmissions independently of the slave repeater and the slave repeater is for re-transmitting the wireless transmissions only after re-transmission of the wireless transmissions by the master repeater.
16. The TDD wireless repeater configuration of claim 15, wherein the master repeater is adapted to communicate a master/slave protocol to the slave repeater, wherein the master/slave protocol is adapted to activate a slave mode of the slave repeater.
17. The TDD wireless repeater configuration of claim 14, wherein the slave repeater is adapted to re-transmit the wireless transmissions during periods of MIMO operation as designated by MIMO device generated messages, and the master repeater is adapted to re-transmit the wireless transmissions during both MIMO and non-MIMO periods of operation.
18. The TDD wireless repeater configuration of claim 14, wherein the master repeater comprises a repeater that is first to be activated, or a repeater having the strongest signal power with respect to a MIMO base station.
19. The TDD wireless repeater of claim 14, wherein the slave repeater includes an oscillation detection circuit to identify whether a frequency translation direction is erroneously chosen by the master repeater and to terminate re-transmission of the wireless transmissions.
20. The TDD wireless repeater configuration of claim 14, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD frequency translating wireless repeater and a second TDD frequency translating wireless repeater.
21. The TDD wireless repeater configuration of claim 14, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD non-frequency translating wireless repeater and a second TDD non-frequency translating wireless repeater.
receiving wireless transmissions in a synchronous manner with the second TDD wireless repeater on a same first frequency and, after MIMO signals are detected on both a first frequency and a second frequency, simultaneously re-transmitting a first portion of the wireless transmissions while receiving a second portion of the wireless transmissions in a manner that is synchronous with the second TDD wireless repeater on a same second frequency.
23. method of claim 22, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
24. The method of claim 23, wherein implementing the master slave mode comprises re-transmitting the wireless transmissions at the master repeater independently of the slave repeater and re-transmitting the wireless transmissions at the slave repeater only after re-transmission of the wireless transmissions by the master repeater.
25. The method of claim 23, wherein implementing the master slave mode comprises, at the slave repeater, re-transmitting the wireless transmissions during periods of MIMO operation as designated by MIMO device generated messages, and, at the master repeater, re-transmitting the wireless transmissions during both MIMO and non-MIMO periods of operation.
based on the determining, designating the first repeater as the master repeater.
at the slave repeater, identifying whether a frequency translation direction is erroneously chosen by the master repeater and terminating re-transmission of the wireless transmissions.
28. The repeater configuration of claim 27, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
means for receiving wireless transmissions in a synchronous manner with the second TDD wireless repeater on a same first frequency and, after MIMO signals are detected on both the first same frequency and a second same frequency, simultaneously re-transmitting a first portion of the wireless transmissions while receiving a second portion of the wireless transmissions in a manner that is synchronous with the second TDD wireless repeater on the same second frequency.
30. The repeater configuration of claim 29, wherein means for implementing the master slave mode comprises means for re-transmitting the wireless transmissions at the master repeater independently of the slave repeater and means for re-transmitting the wireless transmissions at the slave repeater only after re-transmission of the wireless transmissions by the master repeater.
31. The repeater configuration of claim 29, wherein means for implementing the master slave mode comprises means for re-transmitting the wireless transmissions during periods of MIMO operation as designated by MIMO device generated messages at the slave repeater, and means for re-transmitting the wireless transmissions during both MIMO and non-MIMO periods of operation at the master repeater.
means for designating the first repeater as the master repeater based on the determining.
means for identifying whether a frequency translation direction is erroneously chosen by the master repeater and terminating re-transmission of the wireless transmissions at the slave repeater.
after MIMO signals are detected on both the first frequency and a second frequency, simultaneously re-transmit said wireless signal on the second frequency while continuing to receive said wireless signal on the first frequency.
35. The device of claim 34, wherein said received wireless signal comprises at least one MIMO packet.
36. The device of claim 35, wherein said received MIMO packet comprises a first plurality of information streams.
37. The device of claim 36, wherein said two or more physical layer repeaters are adapted to support either a MIMO period of operation or a non-MIMO period of operation, based at least in part on receiving said communication.
38. The device of claim 35, wherein said two or more physical layer repeaters comprise time division duplex (TDD) repeaters.
39. The device of claim 38, wherein the two or more TDD repeaters are each adapted to receive the wireless signal and re-transmit the wireless signal in a synchronized manner while operating in a frequency translating mode.
40. The device of claim 38, wherein the two or more TDD repeaters are each adapted to receive the wireless signal and re-transmit the wireless signal in a synchronized manner while operating in a non-frequency translating mode.
41. The device of claim 35, wherein said two or more physical layer repeaters comprise non-frequency translating repeaters.
42. The device of claim 35, wherein said wireless signal is transmitted according to an 802.11n protocol.
43. The device of claim 35, wherein said two or more physical layer repeaters are adapted to receive a communication defining one or more periods of operation for said two or more modes of said wireless protocol.
44. The device of claim 34, wherein said two or more physical layer repeaters are further adapted to retransmit said received MIMO packet as a second plurality of information streams corresponding with said first plurality of information streams.
45. The device of claim 34, wherein said two or more physical layer repeaters are co-located and/or physically integrated in a single package.
46. The device of claim 34, wherein said two or more physical layer repeaters are adapted to support two or more modes of a wireless protocol.
47. The device of claim 34, wherein said two or more physical layer repeaters are adapted to receive a communication defining one or more periods of operation for said two or more modes of said wireless protocol.
48. The device of claim 34, wherein said two or more physical layer repeaters are adapted to support either a MIMO period of operation or a non-MIMO period of operation, based at least in part on receiving said communication.
wherein said two or more physical layer repeaters are adapted to receive said wireless signal from said at least one MIMO wireless network station on a first frequency and synchronously re-transmit said wireless signal while continuing to receive said wireless signal on a second frequency, after MIMO signals are detected on both the first frequency and the second frequency.
50. The device of claim 49, wherein said wireless signal is transmitted according to an 802.11n protocol.
51. The device of claim 49, wherein said received wireless signal comprises a MIMO packet.
52. The device of claim 51, wherein said received MIMO packet comprises a first plurality of information streams.
53. The device of claim 52, wherein said two or more physical layer repeaters are further adapted to retransmit said received MIMO packet as a second plurality of information streams corresponding with said first plurality of information streams.
54. The device of claim 49, wherein said two or more physical layer repeaters are co-located and/or physically integrated in a single package.
55. The device of claim 49, wherein said two or more physical layer repeaters comprise time division duplex (TDD) repeaters.
56. The device of claim 55, wherein said TDD repeaters are adapted to re-transmit said wireless signal in a synchronized manner if operating in a frequency translating mode.
57. The device of claim 55, wherein said TDD repeaters are adapted to re-transmit said wireless signal in a synchronized manner if operating in a non-frequency translating mode.
58. The device of claim 49, wherein said two or more physical layer repeaters comprise frequency division duplex (FDD) repeaters.
59. The device of claim 49, wherein said two or more physical layer repeaters comprise non-frequency translating repeaters.
60. The device of claim 49, wherein said two or more physical layer repeaters are adapted to support two or more modes of a wireless protocol.
simultaneously re-transmitting a first portion of said wireless transmissions while receiving a second portion of said wireless transmissions in a manner that is synchronous with said second TDD wireless repeater on a same second frequency, after MIMO signals are detected on both the same first frequency and the same second frequency.
62. The method of claim 61, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
63. The method of claim 61, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD frequency translating wireless repeater and a second TDD frequency translating wireless repeater, respectively.
64. The method of claim 61, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD non-frequency translating wireless repeater and a second TDD non-frequency translating wireless repeater, respectively.
simultaneously re-transmit a first portion of said wireless transmissions while receiving a second portion of said wireless transmissions in a manner that is synchronous with said second TDD wireless repeater on a same second frequency, after MIMO signals are detected on both the same first frequency and the same second frequency.
66. The article of claim 65, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
67. The article of claim 65, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD frequency translating wireless repeater and a second TDD frequency translating wireless repeater, respectively.
68. The article of claim 65, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD non-frequency translating wireless repeater and a second TDD non-frequency translating wireless repeater, respectively.
means for simultaneously re-transmitting a first portion of said wireless transmissions while receiving a second portion of said wireless transmissions in a manner that is synchronous with said second TDD wireless repeater on a same second frequency, after MIMO signals are detected on both the same first frequency and the same second frequency.
70. The apparatus of claim 69, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
71. The apparatus of claim 69, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD frequency translating wireless repeater and a second TDD frequency translating wireless repeater, respectively.
72. The apparatus of claim 69, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD non-frequency translating wireless repeater and a second TDD non-frequency translating wireless repeater, respectively.
74. The device of claim 73, wherein the first TDD wireless repeater comprises a master repeater and the second TDD wireless repeater comprises a slave repeater.
75. The device of claim 73, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD frequency translating wireless repeater and a second TDD frequency translating wireless repeater, respectively.
76. The device of claim 73, wherein the first TDD wireless repeater and the second TDD wireless repeater comprise a first TDD non-frequency translating wireless repeater and a second TDD non-frequency translating wireless repeater, respectively.
means for simultaneously re-transmitting said wireless signal on a second frequency while continuing to receive said wireless signal on the first frequency, after MIMO signals are detected on both the first frequency and the second frequency.
78. The apparatus of claim 77, wherein said means for re-transmitting is performed synchronously with received MIMO packets.
79. The apparatus of claim 77, wherein said means for re-transmitting comprises time division duplexing (TDD).
80. The apparatus of claim 77, wherein said received wireless signal comprises at least one MIMO packet.
81. The apparatus of claim 80, wherein said wireless signal is transmitted according to an 802.11n protocol.
82. The apparatus of claim 77, wherein said received MIMO packet comprises a first plurality of information streams.
simultaneously re-transmit said wireless signal on a second frequency while continuing to receive said wireless signal on the first frequency, after MIMO signals are detected on both the first frequency and the second frequency.
84. The article of claim 83, wherein said re-transmitting is performed synchronously with received MIMO packets.
85. The article of claim 83, wherein said re-transmitting comprises time division duplexing (TDD).
86. The article of claim 83, wherein said received wireless signal comprises at least one MIMO packet.
87. The article of claim 86, wherein said received MIMO packet comprises a first plurality of information streams.
88. The article of claim 86, wherein said wireless signal is transmitted according to an 802.11n protocol.
simultaneously re-transmitting said wireless signal while continuing to receive said wireless signal, wherein two or more physical layer repeaters are adapted to receive said wireless signal from said at least one MIMO wireless network station on a first frequency and synchronously re-transmit said wireless signal while continuing to receive said wireless signal on a second frequency, after MIMO signals are detected on both the first frequency and the second frequency.
90. The method of claim 89, wherein said wireless signal is transmitted according to an 802.11n protocol.
91. The method of claim 89, wherein said received wireless signal comprises a MIMO packet.
92. The method of claim 91, wherein said received MIMO packet comprises a first plurality of information streams.
93. The method of claim 89, wherein said two or more physical layer repeaters comprise frequency division duplex (FDD) repeaters.
94. The method of claim 89, wherein said two or more physical layer repeaters are adapted to support two or more modes of a wireless protocol.
means for simultaneously re-transmitting said wireless signal while continuing to receive said wireless signal, wherein two or more physical layer repeaters are adapted to receive said wireless signal from said at least one MIMO wireless network station on a first frequency and synchronously re-transmit said wireless signal while continuing to receive said wireless signal on a second frequency, after MIMO signals are detected on both the first frequency and the second frequency.
96. The apparatus of claim 95, wherein said wireless signal is transmitted according to an 802.11n protocol.
97. The apparatus of claim 95, wherein said received wireless signal comprises a MIMO packet.
98. The apparatus of claim 97, wherein said received MIMO packet comprises a first plurality of information streams.
99. The apparatus of claim 95, wherein said two or more physical layer repeaters comprise frequency division duplex (FDD) repeaters.
100. The apparatus of claim 95, wherein said two or more physical layer repeaters are adapted to support two or more modes of a wireless protocol.
simultaneously re-transmit said wireless signal while continuing to receive said wireless signal, wherein two or more physical layer repeaters are adapted to receive said wireless signal from said at least one MIMO wireless network station on a first frequency and synchronously re-transmit said wireless signal while continuing to receive said wireless signal on a second frequency, after MIMO signals are detected on both the first frequency and the second frequency.
102. The article of claim 101, wherein said wireless signal is transmitted according to an 802.11n protocol.
103. The article of claim 101, wherein said received wireless signal comprises a MIMO packet.
104. The article of claim 103, wherein said received MIMO packet comprises a first plurality of information streams.
105. The article of claim 101, wherein said two or more physical layer repeaters comprise frequency division duplex (FDD) repeaters.
106. The article of claim 101, wherein said two or more physical layer repeaters are adapted to support two or more modes of a wireless protocol.
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Translation of Office Action in Korean application 2009-7010639, corresponding to U.S. Appl. No. 12/439,018, citing WO01052447 and US20040208258 Dated Nov. 15, 2010.
Translation of Office Action issued by Chinese Patent Office on Oct. 19, 2007 in connection with the corresponding Chinese application No. 03814391.7. (corresponding U.S. Appl. No. 10/516,327).
U.S. PTO Office Action mailed on Apr. 17, 2007 for the corresponding parent patent U.S. Appl. No. 11/339,838, now U.S. Patent No. 7,230,935.
U.S. PTO Office Action mailed on Jan. 24, 2007 for the corresponding parent patent U.S. Appl. No. 11/339,838, now U.S. Patent No. 7,230,935.
U.S. PTO Office Action mailed on Nov. 21, 2006 for the corresponding parent patent U.S. Appl. No. 11/339,838, now U.S. Patent No. 7,230,935.
U.S. PTO Office Action mailed on Nov. 6, 2006 for the corresponding parent patent U.S. Appl. No. 11/339,838, now U.S. Patent No. 7,230,935.
Written Opinion, PCT/US06/02900, International Search Authority, European Patent Office, May 13, 2008.

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 Application No. 200380101286
 application No. 03814391