Method for scrambling packet data using variable slot length and apparatus thereof
AssigneeLG Electronics Inc.
InventorsCheol Woo You, Ki Jun Kim, Young Woo Yun, Soon Yil Kwon
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Abstract
A physical channel transmission method and a transmission chain therefor in a communication system are disclosed. In transmitting packet data or packet control data through a physical channel having a transmission format of variable lengths, the data transmission chain includes a scrambler for scrambling the packet data or packet control data using the transmission format information.
Claims65
A wireless communication method using a communication channel capable of transferring packet control data having variable slot lengths, comprising the steps of:
- scrambling in a scrambler the packet control data with a scrambling sequence, wherein the scrambling sequence is generated in response to a slot length;
- and
- transmitting the scrambled packet control data to a receiver.
A wireless communication method using a communication channel capable of transferring packet control data having variable slot length, comprising the steps of:
- receiving a scrambled packet control data, wherein the packet control data is scrambled with a scrambling sequence that is generated in response to a slot length;
- and
- descrambling the scrambled packet control data by using a descrambling sequence.
A wireless communication system using a communication channel capable of transferring packet control data having variable slot length, the system comprising:
- a scrambler for scrambling the packet control data with a scrambling sequence, wherein the scrambling sequence is generated in response to a slot length;
- and
- a transmitter portion for transmitting the scrambled packet control data to a receiver.
A wireless communication method using a communication channel capable of transferring packet data having variable slot lengths, comprising the steps of:
- scrambling in a scrambler the packet control data with a scrambling sequence, wherein the scrambling sequence used at a first time point for scrambling the packet data is equal to a descrambling sequence used at a second time point for descrambling the scrambled packet data;
- and
- transmitting the scrambled packet control data to a receiver.
A wireless communication system for receiving a communication channel capable of transferring packet data having variable slot lengths, the receiver comprising:
- a receiver for receiving a scrambled packet data, wherein the packet data is scrambled with a scrambling sequence that is generated in response to a slot length;
- and
- a descrambler for descrambling the scrambled packet data by using a descrambling sequence.
A wireless communication method using communication channels capable of transferring packet data having variable slot lengths, comprising the steps of:
- scrambling the packet data with at least one of a plurality of code masks in a transmitting device, wherein the packet data having different slot lengths transmitted are scrambled with scrambling codes generated using different code masks;
- communicating the scrambled packet data to a receiving device;
- and
- descrambling the packet data in the receiving device using a common code mask that is used to generate descramble codes corresponding to the plurality of code masks used in the transmitting device.
A wireless communication system using communication channels capable of transferring packet data having variable slot lengths, the system comprising:
- a scrambler comprising
- a long code generator operable in response to a plurality of code masks to generate long codes;
- a bit extractor operably connected to the long code generator;
- a first shift register operably connected to the bit extractor;
- a switch operably connected to the first shift register to control an output signal of the first shift register;
- a second shift register operably connected to the switch, wherein the scrambler scrambles the packet data using at least one of the plurality of code masks in a transmitting device, wherein the packet data having different slot lengths are scrambled with scrambling codes generated using different code masks.
A mobile terminal for use with a wireless transmission system using communication channels capable of transferring packet data having variable slot lengths, the communication system comprising a scrambler for scrambling the packet data with at least one of the plurality of code masks, wherein the packet data having different slot lengths are scrambled with scrambling codes generated using different code masks, the terminal comprising:
- a descrambler that descrambles the scrambed packet data using a common code mask that is used to generate the plurality of code masks used in the transmission system.
Dependencies are inferred from the claim text.