Optimized Physical Broadcast Channel Reception
First Claim
1. A method of operating a radio receiver to receive information from a signal transmitted on a physical broadcast channel, wherein the radio receiver includes a blind processing and decoding unit that operates in accordance with a blind decoder algorithm that requires that a hypothesis be made about how many transmit antennas were used to transmit the signal, the method comprising:
- receiving a signal;
detecting one or more characteristics of the received signal that are indicative of how many transmit antennas were used to transmit the signal;
accessing a stored list of transmit antenna hypotheses, wherein each of the transmit antenna hypotheses represents how many transmit antennas were used to transmit the signal;
for each of the transmit antenna hypotheses stored in the list, determining a probability value based, at least in part, on the detected one or more characteristics of the received signal;
modifying the stored list of transmit antenna hypotheses to associate the probability values with respective ones of the transmit antenna hypotheses; and
using the modified stored list of transmit antenna hypotheses to provide antenna hypothesis probabilities, and operating the blind processing and decoding unit such that the blind processing and decoding unit begins with a most probable antenna hypothesis and continues with increasingly less probable antenna hypotheses until either a successful decoding of the signal has occurred or all antenna hypotheses have been made.
1 Assignment
0 Petitions
Accused Products
Abstract
A receiver receives information from a physical broadcast channel signal, wherein the receiver includes a blind processing and decoding unit that utilizes a hypothesis about how many transmit antennas were used to transmit the signal. Received signal characteristics are detected that indicate how many transmit antennas were used. Each transmit antenna hypothesis in a stored list represents how many transmit antennas were used. For each of the stored hypotheses, a probability value is determined based, at least in part, on the detected signal characteristics. The list of hypotheses is modified to associate the probability values with respective ones of the transmit antenna hypotheses. The modified list is used to provide antenna hypothesis probabilities, and the blind processing and decoding unit is operated such it begins with a most probable antenna hypothesis and continues with increasingly less probable antenna hypotheses until successful decoding occurs or all antenna hypotheses have been made.
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Citations
20 Claims
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1. A method of operating a radio receiver to receive information from a signal transmitted on a physical broadcast channel, wherein the radio receiver includes a blind processing and decoding unit that operates in accordance with a blind decoder algorithm that requires that a hypothesis be made about how many transmit antennas were used to transmit the signal, the method comprising:
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receiving a signal; detecting one or more characteristics of the received signal that are indicative of how many transmit antennas were used to transmit the signal; accessing a stored list of transmit antenna hypotheses, wherein each of the transmit antenna hypotheses represents how many transmit antennas were used to transmit the signal; for each of the transmit antenna hypotheses stored in the list, determining a probability value based, at least in part, on the detected one or more characteristics of the received signal; modifying the stored list of transmit antenna hypotheses to associate the probability values with respective ones of the transmit antenna hypotheses; and using the modified stored list of transmit antenna hypotheses to provide antenna hypothesis probabilities, and operating the blind processing and decoding unit such that the blind processing and decoding unit begins with a most probable antenna hypothesis and continues with increasingly less probable antenna hypotheses until either a successful decoding of the signal has occurred or all antenna hypotheses have been made. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus in a radio receive for receiving information from a signal transmitted on a physical broadcast channel, wherein the radio receiver includes a blind processing and decoding unit that operates in accordance with a blind decoder algorithm that requires that a hypothesis be made about how many transmit antennas were used to transmit the signal, the method comprising:
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circuitry configured to receive the signal; circuitry configured to detect one or more characteristics of the received signal that are indicative of how many transmit antennas were used to transmit the signal; circuitry configured to access a stored list of transmit antenna hypotheses, wherein each of the transmit antenna hypotheses represents how many transmit antennas were used to transmit the signal; circuitry configured to determine a probability value for each of the transmit antenna hypotheses stored in the list, each probability value being based, at least in part, on the detected one or more characteristics of the received signal; circuitry configured to modify the stored list of transmit antenna hypotheses to associate the probability values with respective ones of the transmit antenna hypotheses; and circuitry configured to use the modified stored list of transmit antenna hypotheses to provide antenna hypothesis probabilities, and to operate the blind processing and decoding unit such that the blind processing and decoding unit begins with a most probable antenna hypothesis and continues with increasingly f probable antenna hypotheses until either a successful decoding of the signal has occurred or all antenna hypotheses have been made. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer readable storage medium having stored thereon a set of program instructions that, when executed by one or more processors, causes a radio receiver to receive information from a signal transmitted on a physical broadcast channel, wherein the radio receiver includes a blind processing and decoding unit that operates in accordance with a blind decoder algorithm that requires that a hypothesis be made about how many transmit antennas were used to transmit the signal, the set of program instructions comprising instructions that cause the radio receiver to perform:
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receiving a signal; detecting one or more characteristics of the received signal that are indicative of how many transmit antennas were used to transmit the signal; accessing a stored list of transmit antenna hypotheses, wherein each of the transmit antenna hypotheses represents how many transmit antennas were used to transmit the signal; for each of the transmit antenna hypotheses stored in the list, determining a probability value based, at least in part, on the detected one or more characteristics of the received signal; modifying the stored list of transmit antenna hypotheses to associate the probability values with respective ones of the transmit antenna hypotheses; and using the modified stored list of transmit antenna hypotheses to provide antenna hypothesis probabilities, and operating the blind processing and decoding unit such that the blind processing and decoding unit begins with a most probable antenna hypothesis and continues with increasingly less probable antenna hypotheses until either a successful decoding of the signal has occurred or all antenna hypotheses have been made. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification