Method of enhancing information security in a wireless communications system and related apparatus
AssigneeInnovative Sonic Limited
InventorYu-Chih Jen
Life of this patent
Estimating the term…
Abstract
A method for enhancing information security in a wireless communications system comprises receiving a data or control bit sequence and a user identity sequence, performing a CRC operation on the data/control bit sequence to generate a CRC bit sequence, and masking the CRC bit sequence with the user identity sequence to generate a coded bit sequence according to a formula. The formula comprises a first equation and a second equation, and the second equation calculates a plurality of coded bits of the coded bit sequence according to most significant bits or least significant bits of the user identity sequence and the CRC bit sequence.
Claims4
A method for enhancing information security in a wireless communications system comprising:
- receiving a data or control bit sequence and a user identity sequence;
- performing a Cyclic Redundancy Check, called CRC hereinafter, operation on the data or control bit sequence to generate a CRC bit sequence;
- and
- masking the CRC bit sequence with the user identity sequence to generate a coded bit sequence according to a formula;
- wherein the formula comprises a first equation and a second equation, and the second equation calculates a plurality of coded bits of the coded bit sequence according to most significant bits or least significant bits of the user identity sequence and the CRC bit sequence.
A communications device for enhancing information security in a wireless communications system comprising:
- a control circuit for realizing functions of the communications device;
- a central processing unit installed in the control circuit for executing a program code to operate the control circuit;
- and
- a memory coupled to the central processing unit for storing the program code;
- wherein the program code comprises:
- receiving a data or control bit sequence and a user identity sequence;
- performing a Cyclic Redundancy Check, called CRC hereinafter, operation on the data or control bit sequence to generate a CRC bit sequence;
- and
- masking the CRC bit sequence with the user identity sequence to generate a coded bit sequence according to a formula;
- wherein the formula comprises a first equation and a second equation, and the second equation calculates a plurality of coded bits of the coded bit sequence according to most significant bits or least significant bits of the user identity sequence and the CRC bit sequence.
Dependencies are inferred from the claim text.