Abstract
Briefly in accordance with one or more embodiments a wireless signal is transmitted to a remote device. The remote device determines a precoding matrix indicator (PMI) in response to the wireless signal based at least in part on a hierarchical codebook. The PMI is then received as reported back from the remote device.
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Specification Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||||
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S1
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Technologies
Channel Status Information(CSI) Reporting
Product
Use Cases
Wireless communication
Services
Claim
1. A method comprising:
transmitting a wireless signal to a remote device, the remote device to determine a precoding matrix indicator (PMI) in response to the wireless signal based at least in part on a hierarchical codebook; and
receiving the PMI reported back from the remote device.
2. A method as claimed in claim 1, wherein the hierarchical codebook comprises a first codebook concatenated with a second codebook.
3. A method as claimed in claim 1, wherein the hierarchical codebook includes first index corresponding to a course quantization and a second index corresponding to a fine quantization.
4. A method as claimed in claim 3, wherein the PMI comprises the first index and the second index of the hierarchical codebook.
5. A method as claimed in claim 2, wherein a value of the first codebook allows for a subset of the second codebook to be searched without requiring the entire hierarchical codebook to be searched.
6. An access point, comprising:
a transmitter to transmit a wireless signal to a remote device, the remote device to determine a precoding matrix indicator (PMI) in response to the wireless signal based at least in part on a hierarchical codebook; and
a receiver to receive the PMI reported back from the remote device.
7. An access point as claimed in claim 6, wherein the hierarchical codebook comprises a first codebook concatenated with a second codebook.
8. An access point as claimed in claim 6, wherein the hierarchical codebook includes first index corresponding to a course quantization and a second index corresponding to a fine quantization.
9. An access point as claimed in claim 8, wherein the PMI comprises the first index and the second index of the hierarchical codebook.
10. An access point as claimed in claim 7, wherein a value of the first codebook allows for a subset of the second codebook to be searched without requiring the entire hierarchical codebook to be searched.
11. A base station, comprising:
a transmitter and an array of one or more antennas to transmit a wireless signal to a remote device, the remote device to determine a precoding matrix indicator (PMI) in response to the wireless signal based at least in part on a hierarchical codebook; and
a receiver to receive the PMI reported back from the remote device.
12. A base station as claimed in claim 11, wherein the hierarchical codebook comprises a first codebook concatenated with a second codebook.
13. A base station as claimed in claim 11, wherein the hierarchical codebook includes first index corresponding to a course quantization and a second index corresponding to a fine quantization.
14. A base station as claimed in claim 13, wherein the PMI comprises the first index and the second index of the hierarchical codebook.
15. A base station as claimed in claim 12, wherein a value of the first codebook allows for a subset of the second codebook to be searched without requiring the entire hierarchical codebook to be searched.
16. An article of manufacture comprising a non-transitory machine readable medium having instructions stored thereon that, if executed, result in:
transmitting a wireless signal to a remote device, the remote device to determine a precoding matrix indicator (PMI) in response to the wireless signal based at least in part on a hierarchical codebook; and
receiving the PMI reported back from the remote device.
17. An article of manufacture as claimed in claim 16, wherein the hierarchical codebook comprises a first codebook concatenated with a second codebook.
18. An article of manufacture as claimed in claim 16, wherein the hierarchical codebook includes first index corresponding to a course quantization and a second index corresponding to a fine quantization.
19. An article of manufacture as claimed in claim 18, wherein the PMI comprises the first index and the second index of the hierarchical codebook.
20. An article of manufacture as claimed in claim 17, wherein a value of the first codebook allows for a subset of the second codebook to be searched without requiring the entire hierarchical codebook to be searched.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
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