PN Selection for RF Repeaters, Bi-Directional Amplifiers or Distributed Antenna Systems
First Claim
1. A method comprising:
- reading from memory a propagation delay time, wherein the propagation delay time is indicative of a propagation delay from a first transmitter to a second transmitter;
reading from memory a fixed delay offset associated with the second transmitter; and
transmitting a modulated signal from the first transmitter, wherein the modulated signal is modulated with an associated code, the associated code having an offset corresponding to a sum of the propagation delay time and the fixed delay offset.
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Accused Products
Abstract
Presented herein are methods and systems for providing network access at a slave node based on a signal transmitted by a master BTS. In one example, a pseudorandom code (PN code) selection is described, in which each slave node has a known associated time offset and data is transmitted with a PN code advanced by the known time offset and the propagation delay. Using an example slave base station transceiver architecture (or just slave node for short), the “traditional” BSC can be removed from at least one base station (e.g., “slave nodes”) and a master base station may be configured to control the signal being transmitted from each slave node. Each slave node then may transmit and receive RF signals. The master BTS head end may receive signal portions from the slave nodes and mobile devices, and combine them for relay back into the network.
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Citations
26 Claims
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1. A method comprising:
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reading from memory a propagation delay time, wherein the propagation delay time is indicative of a propagation delay from a first transmitter to a second transmitter; reading from memory a fixed delay offset associated with the second transmitter; and transmitting a modulated signal from the first transmitter, wherein the modulated signal is modulated with an associated code, the associated code having an offset corresponding to a sum of the propagation delay time and the fixed delay offset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
a first base station transceiver, configured to; read from memory a propagation delay time, wherein the propagation delay time corresponds to a radio propagation time from a first transmitter to a second transmitter; read from memory a fixed delay offset associated with the second transmitter; and
,transmit a modulated signal from the first transmitter, wherein the modulated signal is modulated with an associated code, the associated code having an offset corresponding to a sum of the propagation delay and the fixed delay offset; - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An article of manufacture including a non-transitory computer-readable medium, having stored thereon program instructions that, if executed by an computing device, cause the computing device to perform operations comprising:
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reading a propagation delay time from a first transmitter to a second transmitter; reading a fixed delay offset associated with the second transmitter; and initiating a transmission of a modulated signal from the first transmitter, wherein the modulated signal is modulated with an associated code and has an offset corresponding to a sum total of the propagation delay and the fixed delay offset. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification