Resource distribution method of uplink transmission data block response information and system thereof

A technology of response information and resource allocation, applied in transmission path sub-channel allocation, transmission system, digital transmission system, etc., to reduce the amount of detection calculation, save frequency domain resources, and ensure performance.

Inactive Publication Date: 2012-05-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem solved by the present invention is to provide a method and system for allocating response information resources of uplink transmission data blocks, so as to solve the problem of feeding back response information through the PHICH channel when sending multiple transmission blocks on the UE

Method used

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  • Resource distribution method of uplink transmission data block response information and system thereof
  • Resource distribution method of uplink transmission data block response information and system thereof
  • Resource distribution method of uplink transmission data block response information and system thereof

Examples

Experimental program
Comparison scheme
Effect test

application example 1

[0080] Take the user equipment simultaneously sending uplink data of two transmission blocks as an example for description. In this example, the response information of the two transport blocks is issued in different PHICH groups. The feedback process is described as follows:

[0081] 1. Calculate the total number of PHICH groups available to the current base station based on the UL / DL configuration information and the Ng parameters provided by the upper layer of the system

[0082] 2. Extract the lowest PRB index information and DMRS cyclic offset information n when PUSCH is sent from DCI0 DMRS .

[0083] 3. According to the information provided by 1 and 2, formula (1) is used to calculate the total number of PHICH groups when PHICH is issued.

[0084] n PHICH group = ( I PRB lowest + n DMRS + G Enable · Ci ) mod N PHICH group + I PHICH · N PHICH group , i = 0,1 . . . M - - - ( 1 ) ...

application example 2

[0090] Take the user equipment simultaneously sending uplink data of two transmission blocks as an example for description. In this example, the response information of the two transport blocks is delivered in the same PHICH group. The specific description is as follows:

[0091] 1. Calculate the total number of PHICH groups available to the current base station based on the UL / DL configuration information and the Ng parameters provided by the upper layer of the system

[0092] 2. Extract the lowest PRB index information and DMRS cyclic offset information when PUSCH is sent from DCI0.

[0093] 3. According to the information provided by 1 and 2, formula (1) is used to calculate the total number of PHICH groups when PHICH is issued.

[0094] n PHICH group = ( I PRB lowest + n DMRS + G Enable · Ci ) mod N PHICH group + I PHICH · N PHICH group , i = 0,1 . . . M - - - ( 1 )

[0095] T...

application example 3

[0100] In this example, taking the number of transmission blocks of the user equipment as M as an example, the delivery of the response information is described, and the process is described as follows.

[0101] 1. Calculate the total number of PHICH groups available to the current base station based on the UL / DL configuration information and the Ng parameters provided by the upper layer of the system

[0102] 2. Extract the lowest PRB index information and DMRS cyclic offset information when PUSCH is sent from DCI0.

[0103] 3. According to the information provided by 1 and 2, calculate the total number of PHICH groups when PHICH is issued.

[0104] n PHICH group = ( I PRB lowest + n DMRS + G Enable · Ci ) mod N PHICH group + I PHICH · N PHICH group , i = 0,1 . . . M - - - ( 1 )

[0105] If the response information of M transport blocks is issued in different PHICH groups, then G ...

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Abstract

The invention discloses a resource distribution method of uplink transmission data block response information. When a terminal sends more than one transmission block on an uplink component carrier wave, a base station respectively feedbacks response information of each of the uplink transmission block by a physical hybrid ARQ indicator channel (PHICH) on a downlink component carrier wave corresponded to the uplink component carrier wave. According to the invention, when a plurality of transmission blocks are sent on user equipment (UE), response information of the plurality of transmission blocks can be respectively transmitted by a code division multiplexing mode or can be respectively transmitted by a packet mode, so that a problem that the system throughput is reduced due to logic and operation can be solved. Besides, the detection calculated amount of a UE side on a PHICH can be reduced; and a forward and backward compatible characteristic can be realized.

Description

Technical field [0001] The present invention relates to the field of mobile communications, and in particular to a method and system for allocating response information resources of uplink transmission data blocks. Background technique [0002] The rapid development of digital communication systems has put forward higher requirements for the reliability of data communication. However, under harsh channels, especially in high data rates or high-speed mobile environments, multipath interference and Doppler frequency shifts are seriously affected. Affect system performance. Therefore, effective error control technology, especially Hybrid Auto Repeat Request (Hybrid Auto Repeat Request, referred to as HARQ) technology has become a focus of research in the communication field. [0003] In HARQ mode, the code sent by the sender can not only detect errors, but also have certain error correction capabilities. After receiving the codeword, the decoder at the receiving end first checks the...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/18H04W72/04
CPCH04L1/0027H04L5/0053H04L1/1812H04L1/1607H04L1/0029H04L5/0055
Inventor 费佩燕
Owner ZTE CORP
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