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

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

Example Embodiment

[0259] The E-PUCH in the first embodiment is a method for allocating the 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 assigned 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 communicate 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 can 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 time slot occupi...

Example Embodiment

[0323] The allocation method of the signature sequence group when the E-PUCH is a semi-static E-PUCH described in the second embodiment.

[0324] In the 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 command information. Therefore, different signature sequence groups can be allocated to each UE with the same semi-static E-PUCH, so that when NODEB needs to send the ACK information (or NACK information) of the UE to the UE, NODEB will assign the above-mentioned signature sequence to the UE. The reverse 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 command information of the UE to the UE, NODEB will communicate with the TPC&SS command information The original sequence or the reverse sequence of the signature sequence in the corresponding signature sequence group is sent to the UE throu...

Example Embodiment

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

[0472] Specifically, according to the space division multiplexing multiple K in advance, K MID Each Midamble Shift is divided into K subgroups, and the mapping relationship between the channel code and the Midamble Shift in each subgroup in the K subgroups is preset. When multiple UEs share the same scheduling E-PUCH, the mapping relationship between the channel code of the scheduling E-PUCH assigned to any UE and the Midamble Shift assigned to the UE follows the k-th sub-group of the K sub-groups When the mapping relationship between the channel code and the 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 N=3 bit...

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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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