Digital variable gain adjustment on baseband chip
AssigneeGreater Shine Limited
InventorsJifeng Geng, Hong Kui Yang
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Abstract
Embodiments of apparatus and method for digital variable gain adjustment (DVGA) are disclosed. In an example, a baseband chip includes an unpacking module, a symbol recording module operatively coupled to the unpacking module, and a first variable gain adjusting (VGA) module operatively coupled to the symbol recording module. The unpacking module is configured to unpack a plurality of symbols from a first representation of pseudo floating-point numbers to a second representation of fixed-point numbers. The symbol recording module is configured to obtain a symbol parameter based on the unpacking. The first VGA module is configured to dynamically adjust gains of the plurality of symbols having the second representation based on the symbol parameter.
Claims18
A baseband chip, comprising:
- an unpacking module configured to unpack a plurality of symbols from a first representation of pseudo floating-point numbers to a second representation of fixed-point numbers;
- a symbol recording module operatively coupled to the unpacking module and configured to obtain a symbol parameter based on the unpacking;
- and
- a first variable gain adjusting (VGA) module operatively coupled to the symbol recording module and configured to dynamically adjust gains of the plurality of symbols having the second representation based on the symbol parameter,
- wherein the symbol parameter is indicative of a largest signal level of the plurality of symbols.
An apparatus for wireless communication, comprising:
- a radio frequency (RF) chip, comprising:
- an RF front-end;
- and
- a packing module operatively coupled to the RF front-end and configured to pack a plurality of symbols into a first representation of pseudo floating-point numbers;
- and
- a baseband chip comprising:
- an unpacking module configured to unpack the plurality of symbols from the first representation to a second representation of fixed-point numbers;
- a symbol recording module operatively coupled to the unpacking module and configured to obtain a symbol parameter based on the unpacking;
- and
- a variable gain adjusting (VGA) module operatively coupled to the symbol recording module and configured to dynamically adjust gains of the plurality of symbols having the second representation based on the symbol parameter,
- wherein the symbol parameter is indicative of a largest signal level of the plurality of symbols.
A method implemented by a baseband chip for wireless communication, the method comprising:
- unpacking a plurality of symbols from a first representation of pseudo floating-point numbers to a second representation of fixed-point numbers;
- obtaining a symbol parameter based on the unpacking;
- and
- dynamically adjusting gains of the plurality of symbols having the second representation based on the symbol parameter,
- wherein the symbol parameter is indicative of a largest signal level of the plurality of symbols.
Dependencies are inferred from the claim text.