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Distribution method of signature sequence or signature sequence group on E-HICH

A signature sequence and distribution method technology, applied to electrical components, wireless communication, etc., can solve problems such as the inability to determine control information

Inactive Publication Date: 2011-05-25
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using MU MIMO technology, since NODEB will allocate the same E-PUCH to multiple UEs in the same uplink subframe, it is impossible to determine only based on the method of returning control information provided in the prior art The control information related to E-PUCH fed back by NODEB to each UE

Method used

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  • Distribution method of signature sequence or signature sequence group on E-HICH
  • Distribution method of signature sequence or signature sequence group on E-HICH
  • Distribution method of signature sequence or signature sequence group on E-HICH

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0259] The E-PUCH in the first embodiment is a method for assigning a signature sequence when scheduling the E-PUCH.

[0260] In the embodiment of the present invention, when the E-PUCH is a scheduling E-PUCH, the control information is ACK / NACK information. Therefore, different signature sequences can be allocated to each UE with the same scheduled E-PUCH, so that when NODEB needs to return ACK information (or NACK information) to each UE with the same scheduled E-PUCH, NODEB can share the same sequence with the UE The reverse sequence (or original sequence) of the signature sequence corresponding to the ACK / NACK information is sent to each UE through the E-HICH.

[0261] We may set the spreading factor of the scheduled E-PUCH allocated to the UE as Q, where Q=1, 2, 4, 8. Therefore, the number of signature sequences on each E-HICH corresponding to each time slot occupied by the scheduled E-PUCH is: The number of signature sequences on the E-HICH pair corresponding to each ...

Embodiment 2

[0323] The method for allocating signature sequence groups when the E-PUCH described in the second embodiment is a semi-static E-PUCH.

[0324] In an embodiment of the present invention, when the E-PUCH is a semi-static E-PUCH, the control information is ACK / NACK information and TPC&SS instruction information. Therefore, different signature sequence groups can be allocated to each UE with the same semi-static E-PUCH, so that when the NODEB needs to send the UE's ACK information (or NACK information) to the UE, the NODEB will assign the above signature sequence to the UE The inverse sequence (or original sequence) of the first signature sequence in the group is sent to the UE through E-HICH; and when NODEB needs to send a certain TPC&SS instruction information of UE to UE, NODEB will communicate with the TPC&SS instruction information The corresponding original sequence or reverse sequence of the signature sequence in the above signature sequence group is sent to the UE through...

Embodiment 3

[0471] Embodiment 3: a method of sending the logic ID of the signature sequence assigned to the UE to the UE through the information bits selected on the E-AGCH.

[0472] Specifically, according to the space division multiplexing factor K, the K MID The Midamble Shifts are divided into K subgroups, and the mapping relationship between channel codes and Midamble Shifts in each of the K subgroups is preset. When multiple UEs share the same scheduled E-PUCH, the mapping relationship between the channel code of the scheduled E-PUCH allocated to any UE and the Midamble Shift allocated to the UE follows the k-th subgroup of the K subgroups When the mapping relationship between the channel code and Midamble Shift specified in , the group number k of the k-th subgroup is sent to the UE through the information bits selected on the E-AGCH. For each UE sharing the same scheduled E-PUCH, the group number of each UE is different.

[0473] When K=8, use the N=3 bits selected on the E-AGCH...

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Abstract

The invention discloses a distribution method of a signature sequence or a signature sequence group on an E-HICH, comprising the following steps of determining a value of each parameter needed when distributing the signature sequence or the signature sequence group to each user equipment UE which shares a same enhanced physical uplink channel (E-PUCH); and distributing corresponding signature sequence or signature sequence group to each UE which shares the same E-PUCH according to the value of each parameter. By the method, different signature sequences or different signature sequence groupsare distributed to each UE sharing the same E-PUCH, and therefore, NODEB can respectively feed back control information of the E-PUCH of each UE to each UE sharing the same E-PUCH by distributing thesignature sequence or the signature sequence group to each UE.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for allocating signature sequences or signature sequence groups on an Enhanced Dedicated Channel Hybrid ARQ Indicator Channel (E-HICH, E-DCH Hybrid ARQ Indicator Channel). Background technique [0002] With the rapid development of wireless communication technology, people put forward higher and higher requirements for system capacity and spectrum efficiency. In order to meet the needs of high-speed data services in mobile networks, Time Division Synchronous Code Division Multiple Access (TD-SCDMA, Time Division Synchronous Code Division Multiple Access) system introduces High Speed ​​Uplink Packet Access (HSUPA, High Speed ​​Uplink Packet Access) technology. The technology can greatly improve the uplink throughput and uplink peak rate. In the HSUPA technology, a MU MIMO (multi-user multiple-input multiple-output) technology is introduced, so that...

Claims

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Application Information

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IPC IPC(8): H04W72/04
Inventor 魏立梅赵渊沈东栋
Owner TD TECH COMM TECH LTD
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