Data transmission method for hybrid ARQ type II/III downlink of a wide-band radio communication system

• US 6,731,623 B2
• Filed: 04/10/2001
• Issued: 05/04/2004
• Est. Priority Date: 04/10/2000
• Status: Expired due to Term

• Current Assignee: Yamazaki Holdings LLC (Intellectual Ventures LLC)
• Original Assignee: Hyundai Electronics Industries Co. Ltd. (SK Hynix Inc.)
• Inventors: Lee, Yu-Ro, Park, Jae-Hong, Ye, Jeong-Hwa, Lee, Chong-Won
• Primary Examiner(s): Patel, Ajit
• Application Number:
  US09/832,250
• Publication Number:
  US 20020009999A1
• Time in Patent Office: 1,120 Days
• Field of Search: 370/352-356, 370/338, 370/349, 370/389, 370/394, 370/465, 370/466, 370/474, 714/746, 714/748, 714/749, 714/750, 714/751, 455/422, 455/426
• US Class Current: 370/349
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/0066 Parallel concatenated codes
• CPC Class Codes: H04L 1/0069 Puncturing patterns
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

A data processing method for a hybrid ARQ type II/III downlink of a wide-band radio communication system, wherein SRNC and CRNC are located on the same radio network, includes the steps of: a) generating RLC-PDU in a RLC layer of the SRNC and generating a PDU having RLC-PDU information needed for supporting the hybrid ARQ type II/III based on a header of the RLC-PDU (HARQ-RLC-Control-PDU); b) transmitting the RLC-PDU and the HARQ-RLC-Control-PDU to a MAC-D, treating a general user part of a MAC layer through a logical channel; c) transmitting the RLC-PDU and the HARQ-RLC-Control-PDU from the MAC-D to a MAC-C/SH, treating common/shared channel part of the MAC layer; d) transforming the PLC-PDU and the HARQ-RLC-Control-PDU to MAC-PDU and the HARQ-MAC-Control-PDU, respectively, in the MAC-C/SH, and allocating a format TFI1 of the MAC-PDU and TFI2 of the HARQ-MAC-Control-PDU, and transmitting the TFI1 and TFI2 to the MAC-D, and transmitting the MAC-PDU and the HARQ-MAC-Control-PDU to a physical layer of BTS, through a transport channel; and e) forming the TFI1 and the TFI2 in the MAC-D to a TFCI, then transmitting the TFCI to the user equipment through a first physical channel, and transforming the MAC-PDU and the HARQ-MAC-Control-PDU to a radio frame, then transmitting the radio frame to the mobile station through a second physical channel.

Claims

1. A data processing method for a hybrid ARQ type II/III downlink of a wide-band radio communication system, wherein a serving radio network controller (hereinafter, referred to as a SRNC) which is directly connected to a user equipment to allocate wireless resources to the user equipment and provides services by interlocking with a wireless communication core network in case of a call connection and a controlling radio network controller (hereinafter, referred to as a CRNC) which controls a sharing channel of a radio network are located on the same radio network, comprising the steps of:

a) generating a radio link control-protocol data unit (hereinafter, referred to as a RLC-PDU) in a radio link control (hereinafter, referred to as a RLC) layer of the SRNC and generating a ptotocol data unit having RLC-PDU information needed for supporting the hybrid ARQ type II/III based on a header of the RLC-PDU (hereinafter, referred to as a HARQ-RLC-Control-PDU);

b) transmitting the RLC-PDU and the HARQ-RLC-Control-PDU to a medium access control dedicated (hereinafter, referred to as a MAC-D), treating a general user part of a MAC layer, through a logical channel;

c) transmitting the RLC-PDU and the HARQ-RLC-Control-PDU of the MAC-D to a medium access control common/shared (hereinafter, referred to as a MAC-C/SH), treating a common/shared channel part of the MAC layer;

d) transforming the RLC-PDU and the HARQ-RLC-Control-PDU to MAC-PDU and the HARQ-MAC-Control-PDU, respectively, in the MAC-C/SH and allocating a transport format indicator 1 (TFI1) of the MAC-PDU and a transport format indicator 2 (TFI2) of the HARQ-MAC-Control-PDU and transmitting the TFI1 and TFI2 to the MAC-D, and transmitting the MAC-PDU and the HARQ-MAC-Control-PDU to a physical layer of BTS, through a transport channel; and

e) forming the TFI1 and the TFI2 in the MAC-D to a transport format combination set (TFC1), then transmitting the TFC1 to the user equipment through a first physical channel, and transforming the MAC-PDU and the HARQ-MAC-Control-PDU to a radio frame, then transmitting the radio frame to the mobile station through a second physical channel.

2. The data processing method as recited in claim 1, wherein the RLC layer generates an relation indicator representing a relation between the RLC-PDU and the HARQ-RLC-Control-PDU, and transmits the RLC-PDU and the HARQ-RLC-Control-PDU along with each PDU.

3. The data processing method as recited in claim 2, wherein the relation indicator is made to each of the HARQ-RLC-Control-PDU generated based on the RLC-PDU and the header of the RLC-PDU, and in case of having a relation between the RLC-PDU and the HARQ-RLC-Control-PDU, the relation indicator has the same value.

4. The data processing method as recited in claim 3, wherein the MAC-C/SH treats the RLC-PDU and the HARQ-RLC-Control-PDU simultaneously, in case of receiving the relation indicator along with each of the RLC-PDU through the MAC-D from the RLC layer.

5. The data processing method as recited in claim 1, further comprising the step of:

f) storing the RLC-PDU in a buffer, extracting the RLC-PDU from the buffer by using the HARQ-RLC-Control-PDU, transmitting the RLC-PDU to an upper layer after interpreting and transmitting a response to the radio network.

6. The data processing method as recited in claim 5, wherein the step f) includes the steps of:

f1) receiving a radio frame, which has the RLC-PDU and the HARQ-RLC-Control-PDU PDU, and information (TFCI) required for performing a physical layer operation;

f2) transmitting the TFCI to the MAC-D of the user equipment (UE);

f3) obtaining the TFI2 of the HARQ-RLC-Control-PDU from the TFCI and transmitting the TFI2 to MAC-C/SH of the UE, through a demodulating, a deinterleaving and a decoding process;

f4) when performing the step f3), storing the radio frame having the RLC-PDU to the buffer, generating a data identifier for identifying the buffer storing the RLC-PDU and transmitting the data identifier to the MAC-C/SH of the UE, with the HARQ-RLC-Control-PDU;

f5) receiving the HARQ-MAC-Control-PDU, which has the HARQ-RLC-Control-PDU, and the data identifier, transforming the HARQ-MAC-Control-PDU to the HARQ-RLC-Control-PDU and transmitting the HARQ-RLC-Control-PDU and the data identifier to MAC-D of the UE;

f6) transmitting the HARQ-RLC-Control-PDU and the data identifier to the RLC layer of the UE, through a logical channel;

f7) interpreting the HARQ-RLC-Control-PDU to extract a sequence number and a version number of the RLC-PDU and transmitting the sequence number, the version number and the data identifier to a radio resource control (RRC) layer of the UE;

f8) transmitting the sequence number, the version number and the data identifier of the PDU to the physical layer of the UE;

f9) extracting the radio frame having the RLC-PDU from the buffer, and the TFI1, by using the data identifier, and by using the TFI1, the sequence number and the version number, transforming the extracted radio frame to MAC-PDU through modulating, a deinterleaving and a decoding process, and then transmitting the radio frame to MAC-C/SH of the UE;

f10) at the MAC-C/SH of the UE, transforming the MAC-PDU to the RLC-PDU, after interpreting the MAC-PDU, and transmitting the RLC-PDU to the MAC-D of the UE;

f11) at the MAC-D of the UE, transmitting the RLC-PDU to the RLC layer of the UE through a logical channel; and

f12) transmitting the RLC-PDU which is received from RLC layer of the UE, after interpreting the RLC-PDU, and transmitting a response to the radio network.

7. The data processing method as recited in claim 6, wherein in the step f7), the RLC layer of the UE interprets the received HARQ-RLC-Control-PDU and after extracting a sequence number and a version number, the sequence number, the version number and the data identifier are transmitted to a RRC layer of the UE through CRLC-HARQ-IND primitive.

8. The data processing method as recited in claim 6, wherein in the step f8), the RRC layer of the UE transmits the sequence number, the version number and the data identifier to the physical layer of the UE through a CPHY-HARQ-REQ primitive.

9. The data processing method as recited in claim 1, wherein the step d) includes the steps of:

d1) receiving the RLC-PDU and the HARQ-RLC-Control-PDU from the MAC-D;

d2) allocating the TFI1 and the TFI2 to the RLC-PDU and the HARQ-RLC-Control-PDU, respectively, and transmitting the TFI1 and the TFI2 to the MAC-D;

d3) transforming the received RLC-PDU and the HARQ-RLC-Control-PDU to the MAC-PDU and the HARQ-MAC-Control-PDU, respectively, and carrying out transmission scheduling to transmitting the MAC-PDU and the HARQ-MAC-Control-PDU by using transport channel;

d4) transmitting the MAC-PDU and the HARQ-MAC-Control-PDU to the physical layer of the UE; and

d5) in case of receiving the relation identifier with each of the PDU, through the MAC-D, when carrying out the steps d3) and d4), the RLC-PDU and the HARQ-RLC-Control-PDU are processed based on the relation identifier.

10. The data processing method as recited in claim 1, wherein the step d) includes the steps of:

d1) forming the TFI1 and the TFI2 to the TFCI by the MAC-D and transmitting the TFCI to the UE through the first physical channel; and

d2) transforming the RLC-PDU and the HARQ-RLC-Control-PDU to a radio frame through an encoding, a rate matching and an interleaving, then transmitting the transformed radio frame to the UE through the second physical channel.

11. The data processing method as recited in claim 10, wherein the logical channel is a dedicated traffic channel (DTCH) logical channel for transmitting the RLC-PDU and the HARQ-RLC-Control-PDU.

12. The data processing method as recited in claim 10, wherein the logical channel includes the DTCH and a dedicated control channel (DCCH) logical channels for transmitting the RLC-PDU and the HARQ-RLC-Control-PDU, respectively.

13. The data processing method as recited in claim 10, wherein the transport channel includes a downlink shared channel (DSCH) for transmitting the RLC-PDU and the HARQ-RLC-Control-PDU.

14. The data processing method as recited in claim 10, wherein the first physical channel includes a dedicated physical channel (DPCH) for transmitting the TFCI.

15. The data processing method as recited in claim 14, wherein the second physical channel includes a physical downlink shared channel (PDSCH) for transmitting the MAC-PDU and the HARQ-MAC-Control-PDU.

16. The data processing method as recited in claim 10, wherein the radio network is an asynchronous radio network.

17. A computer readable data recording media having instructions for implementing a method for a hybrid ARQ type II/III on a downlink of a wide-band radio communication system, wherein a serving radio network controller (hereinafter, referred to as a SRNC) which is directly connected to a user equipment to allocate wireless resources to the user equipment and provides services by interlocking with a wireless communication core network in case of a call connection and a controlling radio network controller (hereinafter, referred to as a CRNC) which controls a sharing channel of a radio network are located on the same radio network, comprising the functions of:

a) generating a radio link control-protocol data unit (hereinafter, referred to as a RLC-PDU) in a radio link control (hereinafter, referred to as a RLC) layer of the SRNC and generating a protocol data unit having RLC-PDU information needed for supporting the hybrid ARQ type II/III based on a header of the RLC-PDU (hereinafter, referred to as a HARQ-RLC-Control-PDU);

b) transmitting the RLC-PDU and the HARQ-RLC-Control-PDU to a medium access control dedicated (hereinafter, referred to as a MAC-D) treating a general user part of a MAC layer through a logical channel;

c) transmitting the RLC-PDU and the HARQ-RLC-Control-PDU of the MAC-D to a medium access control common/shared (hereinafter, referred to as a MAC-C/SH), treating a common/shared channel part of the MAC layer;

d) transforming the RLC-PDU and the HARQ-RLC-Control-PDU to MAC-PDU and the HARQ-MAC-Control-PDU, respectively, in the MAC-C/SH and allocating a transport format indicator 1 (TFI1) of the MAC-PDU and a transport format indicator 2 (TFI2) of the HARQ-MAC-Control-PDU and transmitting the TFI1 and TFI2 to the MAC-D, and transmitting the MAC-PDU and the HARQ-MAC-Control-PDU to a physical layer of BTS, through a transport channel; and

e) forming the TFI1 and the TFI2 in the MAC-D to a transport format combination set (TFCI), then transmitting the TFCI to the user equipment through a first physical channel, and transforming the MAC-PDU and the HARQ-MAC-Control-PDU to a radio frame, then transmitting the radio frame to the mobile station through a second physical channel.

18. The computer readable data recording media as recited in claim 17, further comprising the step of:

f) storing the RLC-PDU from a buffer, extracting the RLC-PDU of the buffer by using the HARQ-RLC-Control-PDU, transmitting the RLC-PDU to an upper layer after interpreting and transmitting the response to the radio network.

19. The computer readable data recording media as recited in claim 18, wherein the function f) includes the steps of:

f1) receiving a radio frame, which has the RLC-PDU and the HARQ-RLC-Control-PDU, and information (TFCI) required for performing a physical layer operation;

f2) transmitting the TFCI to the MAC-D of the user equipment (UE);

f3) Obtaining the TFI2 of the HARQ-RLC-Control-PDU from the TFCI and transmitting the TFI2 to MAC-C/SH of the UE, through a demodulating, a deinterleaving and a decoding process;

f4) when performing the step f3), storing the radio frame having the RLC-PDU to the buffer, generating a data identifier for identifying the buffer storing the RLC-PDU and transmitting the data identifier to the MAC-C/SH of the UE, with the HARQ-RLC-Control-PDU;

f5) receiving the HARQ-MAC-Control-PDU, which has the HARQ-RLC-Control-PDU, and the data identifier, transforming the HARQ-MAC-Control-PDU to the HARQ-RLC-Control-PDU and transmitting the HARQ-RLC-Control-PDU and the data identifier to MAC-D of the UE;

f6) transmitting the HARQ-RLC-Control-PDU and the data identifier to the RLC layer of the UE, through a logical channel;

f7) interpreting the HARQ-RLC-Control-PDU to extract a sequence number and a version number of the RLC-PDU and transmitting the sequence number, the version number and the data identifier to a radio resource control (RRC) layer of the UE;

f8) transmitting the sequence number, the version number and the data identifier of the PDU to the physical layer of the UE;

f9) extracting the radio frame having the RLC-PDU from the buffer, and the TFI1, by using the data identifier, and by using the TFI1, the sequence number and the version number, transforming the extracted radio frame to MAC-PDU through modulating, a deinterleaving and a decoding process, and then transmitting the radio frame to MAC-C/SH of the UE;

f10) at the MAC-C/SH of the UE, transforming the MAC-PDU to the RLC-PDU, after interpreting the MAC-PDU, and transmitting the RLC-PDU to the MAC-D of the UE;

f11) at the MAC-D of the UE, transmitting the RLC-PDU to the RLC layer of the UE through a logical channel; and

f12) transmitting the RLC-PDU which is received from RLC layer of the UE, after interpreting the RLC-PDU and transmitting a response to the radio network.