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Method and system for allocating maximum number of soft channel bits available

A soft channel bit and maximum value technology, which is applied in the field of allocation of the maximum value of available soft channel bits, can solve problems such as low buffer utilization, and achieve the effect of preventing buffer overflow and high buffer utilization.

Inactive Publication Date: 2011-11-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The inventors found that in the related art, in the case of explicit allocation, Node B does not allocate a reasonable maximum value of available soft channel bits in the virtual incremental redundancy buffer for each HARQ processing process, which may lead to low buffer utilization

Method used

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  • Method and system for allocating maximum number of soft channel bits available
  • Method and system for allocating maximum number of soft channel bits available
  • Method and system for allocating maximum number of soft channel bits available

Examples

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Embodiment 1

[0063] In this embodiment, the UE capability is 14, and the corresponding total number of soft channel bits is 259200 bits as an example to illustrate the method of allocating the buffer size of HARQ, such as Figure 7 shown, including the following steps:

[0064] Step 710: Node B divides the total number of soft channel bits (Total soft bits T=259200) corresponding to the UE capability level by the number of HARQs (N=6) to obtain temp_process_memory_size (that is, N TIR =43200);

[0065] Step 720: The method for determining the process_memory_size of the first to (N-1)th HARQ is as follows: use temp_process_memory_size (43200) to find the value process memory that is closest to the value but greater than or equal to the temp_process_memory_size from the predefined enumeration values size1=44000.

[0066] Step 730: Then let process_memory_size2 (that is, N LIR )=T-(N-1)×process_memory_size1, get process_memory_size2=39200, then the process memory size of the Nth HARQ is eq...

Embodiment 2

[0070] In this embodiment, the UE capability is 10, and the corresponding total number of soft channel bits is 172800 bits as an example to describe the method of allocating the buffer size of HARQ, such as Figure 8 shown, including the following steps:

[0071] Step 810: Node B divides the total number of soft channel bits (Total soft bits T=172800) corresponding to the UE capability level by the number of HARQs (N=6) to obtain temp_process_memory_size (28800);

[0072] Step 820: The method for determining the process_memory_size of the 1st to (N-1)th HARQ is as follows: use temp_process_memory_size (28800) to find the value closest to the value but greater than or equal to the temp_process_memory_size from the predefined enumeration values ​​process_memory_size1= 28800.

[0073] Step 830: Then set process_memory_size2=T-(N-1)×process_memory_size1 to obtain process_memory_size2=28800, then the process_memory_size of the Nth HARQ is equal to the process_memory_size2 that is ...

Embodiment 3

[0077] In this embodiment, the UE capability is 26, and the corresponding total number of soft channel bits is 619200 bits as an example to describe the method of allocating the buffer size of HARQ, as Figure 9 shown, including the following steps:

[0078] Step 910: Node B divides the total number of soft channel bits (Total soft bits T=619200) corresponding to the UE capability level by the number of HARQs (N=12) to obtain temp_process_memory_size (51600);

[0079] Step 920: The method for determining the process_memory_size of the 1st to (N-1)th HARQ is as follows: use temp_process_memory_size (51600) to find the value closest to the value but greater than or equal to the value of the temp_process_memory_size process_memory_size1= 52000.

[0080] Step 930: Then set process_memory_size2=T-(N-1)×process_memory_size1 to obtain process_memory_size2=47200, then the process memory size of the Nth HARQ is equal to the value closest to but less than Equal to the value of the pro...

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Abstract

The invention discloses a method and a system for allocating the maximum number of soft channel bits available in a hybrid automatic repeat request (HARQ) application process. The method comprises the following steps of: setting a temporary memory size NTIR=T / N at a node B, wherein T is the total number of the soft channel bits of user equipment (UE), and N is the number of HARQ processes configured for the UE; determining that NIR1= NIR2= ... NIRN-1= a value which is closest to and not less than NTIR in pre-defined enumeration values, wherein NIRi is the maximum number of soft channel bits available in the ith HARQ process; setting a residual memory size to determine that NIRN is equal to a value which is closest to and not more than NLIR in the enumeration values; and notifying a wireless network controller of NIR1...NIRN at the node B. By the method and the system, a high memory utilization rate can be achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for allocating the maximum value of available soft channel bits in a Hybrid-Automatic Repeat reQuest (HARQ) processing process. Background technique [0002] High-Speed ​​Downlink Packet Access (HSDPA for short) technology can improve system capacity, and can significantly increase the WCDMA downlink user data rate, and can provide 10Mbit / s for packet data services within a 5MHz bandwidth. Downlink data transfer rate. This improvement in performance comes from some of the key technologies it adopts, including: adaptive modulation and coding, fast scheduling, HARQ, advanced receiver design, and so on. [0003] The HSDPA technology introduces a new transmission channel, a high speed downlink shared channel (High Speed ​​Downlink Shared Channel, hereinafter referred to as HS-DSCH), which is used to bear the load of HSDPA. The functions provided by HS-DSCH incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L1/18
Inventor 柯雅珠程翔张海燕刘霖
Owner ZTE CORP