Method of transmitting and receiving data in a wireless communication system including error detection code decoded using equipment identifiers and group identifiers

• US 8,347,174 B2
• Filed: 01/09/2008
• Issued: 01/01/2013
• Est. Priority Date: 01/09/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Park, Sung Jun, Yi, Seung June
• Primary Examiner(s): SCHELL, JOSEPH O
• Application Number:
  US12/448,803
• Publication Number:
  US 20100088580A1
• Time in Patent Office: 1,819 Days
• Field of Search: 714/49, 714/52, 714/758, 370/342, 370/345
• US Class Current: 714/758
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/04 using frequency diversity
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 61/35 involving non-standard use of addresses for implementing network functionalities, e.g. coding subscription information within the address or functional addressing, i.e. assigning an address to a function
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A method for transmitting data from a network to a user equipment in a wireless communication system is provided. The network adds an error detection code, generated using a first identifier allocated to the user equipment, to scheduling information for data to be transmitted to the user equipment and transmits the scheduling information to which the error detection code has been added to the user equipment. The network also adds an error detection code, generated using a second identifier allocated to the user equipment, to the data to be transmitted to the user equipment and transmits the data to which the error detection code has been added to the user equipment.

Claims

1. A method for transmitting data from a network to a user equipment in a wireless communication system, the method comprising:

adding an error detection code, generated using a first identifier allocated to the user equipment, to scheduling information for data to be transmitted to the user equipment;

transmitting the scheduling information to which the error detection code has been added to the user equipment;

adding an error detection code, generated using a second identifier allocated to the user equipment, to the data to be transmitted to the user equipment, wherein the second identifier is not included in the data; and

transmitting the data to which the error detection code has been added to the user equipment,

wherein decoding, of the error detection code added to the data is executed if decoding, of the error detection code added to the scheduling information, is successful,

wherein the first identifier is a group identifier used to identify a user equipment group including the user equipment and the second identifier is a user equipment identifier used to identify the user equipment.

2. The method according to claim 1, wherein the error detection code is a Cyclic Redundancy Check (CRC) code.

3. A method for receiving data transmitted from a network at a user equipment in a wireless communication system, the method comprising:

receiving scheduling information transmitted from the network through a control channel, the scheduling information including an error detection code that has been added to the scheduling information by the network;

decoding the error detection code added to the scheduling information using a first identifier that the network has allocated to the user equipment;

receiving data transmitted from the network through a data channel using the scheduling information, the data including an error detection code that has been added to the data by the network; and

if the decoding, of the error detection code added to the scheduling information, is successful, decoding the error detection code added to the received data using a second identifier that the network has allocated to the user equipment,

wherein the second identifier is not included in the received data,

wherein the first identifier is a group identifier used to identify a user equipment group including the user equipment and the second identifier is a user equipment identifier used to identify the user equipment.

4. The method according to claim 3, further comprising transferring the received data to an upper layer if the decoding, of the error detection code added to the data, is successful.

5. The method according to claim 3, further comprising discarding the received data if the decoding, of the error detection code added to the data, is unsuccessful.

6. The method according to claim 3, wherein the error detection code is a Cyclic Redundancy Check (CRC) code.