Abstract
The present invention provides a code information channel information feedback method, apparatus and system. In the channel information feedback method according to the code book described above, the terminal in the communication system measures the parameters of the downlink channel between the terminal and the base station of the communication system, and uses the parameters of the downlink channel, A plurality of precoding matrices that can be used for both a single-user multi-input multi-output transmission scheme and a multi-user multi-input multi-output transmission scheme are selected from the precoding codebook, and the plurality of precoding matrices are indicated. Feedback of one information to the base station, and the precoding codebook is a set of precoding matrices. (Selection) Figure 2
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 22/04/2014 | ISLD-201404-004 | SONY CORP | No | Family Member | ||||
| 4G | 29/07/2021 | ISLD-202106-034 | SONY CORP | No | Family Member | ||||
| 5G | 29/07/2021 | ISLD-202106-034 | SONY CORP | No | Family Member | ||||
Specification Information
Specification Information
Technologies
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
| EP2536058A1 | 4G | 22/04/2014 | ISLD-201404-004 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058A1 | 4G | 29/07/2021 | ISLD-202106-034 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058A1 | 5G | 29/07/2021 | ISLD-202106-034 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058A4 | 4G | 22/04/2014 | ISLD-201404-004 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058A4 | 4G | 29/07/2021 | ISLD-202106-034 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058A4 | 5G | 29/07/2021 | ISLD-202106-034 | SONY CORP | Yes | Basis Patent | ||||
| CN102158263A | 4G | 22/04/2014 | ISLD-201404-004 | SONY CORP | No | Family Member | ||||
| CN102158263A | 4G | 29/07/2021 | ISLD-202106-034 | SONY CORP | No | Family Member | ||||
| CN102158263A | 5G | 29/07/2021 | ISLD-202106-034 | SONY CORP | No | Family Member | ||||
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| EP2536058B1 | 4G | 22/04/2014 | ISLD-201404-004 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058B1 | 4G | 29/07/2021 | ISLD-202106-034 | SONY CORP | Yes | Basis Patent | ||||
| EP2536058B1 | 5G | 29/07/2021 | ISLD-202106-034 | SONY CORP | Yes | Basis Patent | ||||
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Technologies
Multiple-Input Multiple-Output(MIMO)/Massive MIMO Feedback
Product
Use Cases
Wireless communication
Services
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