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HSUPA (High Speed Uplink Packet Access) scheduler and scheduling method by adopting MU MIMO (Multiple User Multiple Input Multiple Output) technology

A scheduling method and technology, applied in electrical components, wireless communication, preventing/detecting errors through diversity reception, etc., can solve problems such as UE inability to multiplex, achieve the effect of increasing the uplink peak rate and uplink throughput

Active Publication Date: 2011-10-12
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a defect in the existing technology to allocate training sequence offsets to UEs only based on a special default training sequence offset allocation method: this method makes it impossible for UEs that do not support the special default training sequence offset allocation methods to reuse other E-PUCH resource of UE

Method used

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  • HSUPA (High Speed Uplink Packet Access) scheduler and scheduling method by adopting MU MIMO (Multiple User Multiple Input Multiple Output) technology
  • HSUPA (High Speed Uplink Packet Access) scheduler and scheduling method by adopting MU MIMO (Multiple User Multiple Input Multiple Output) technology
  • HSUPA (High Speed Uplink Packet Access) scheduler and scheduling method by adopting MU MIMO (Multiple User Multiple Input Multiple Output) technology

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Effect test

Embodiment 1

[0185] The scheduling process of the HSUPA scheduler using MU MIMO technology proposed in Embodiment 1 of the present invention is as follows: figure 2 shown, including the following steps:

[0186] Step 201: Determine the channel combination or resource type combination multiplexed by the HSUPA UE. The HSUPA UE will multiplex the uplink resources occupied by each channel or each resource type included in the channel combination or resource type combination in the manner of MU MIMO.

[0187] Step 202: The HSUPA scheduler starts periodic scheduling. In any subsequent subframe (n), the HSUPA scheduler performs HSUPA scheduling once.

[0188] In any subframe (the nth subframe), the scheduling process of the HSUPA scheduler is as follows image 3 shown, including the following steps:

[0189] Step 202-1: Determine the UEs that can be scheduled in the current subframe, and then determine the scheduling priority of each UE that can be scheduled. All UEs that can be scheduled a...

specific Embodiment approach

[0254] When the uplink scheduling resource pool is formed in step 202-3, the determined channel combination or resource type combination includes channel types other than idle uplink resources, such as UL DPCH, non-scheduling E-PUCH, SPS E-PUCH, HS - For any one or multiple uplink channels of SICH, PRACH and E-RUCCH, in the uplink scheduling resource pool, it is necessary to determine whether the uplink resource occupied by any other uplink channel included in the resource pool is beneficial to the scheduled UE available. Methods as below:

[0255] For any other uplink channel included in the uplink scheduling resource pool in the (n+d1+2)th subframe, it is determined whether the uplink channel is empty or bears a signal of which UE. If the channel is vacant, the resources occupied by the channel can be used by the UE. Otherwise, examine the correlation between the radio channel of the UE being scheduled and the radio channel of the UE carried on the uplink channel. If the ...

Embodiment 2

[0288] Embodiment 2 and Embodiment 3 are supplements to Embodiment 1 from different perspectives.

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Abstract

The invention provides an HSUPA (High Speed Uplink Packet Access) scheduler and a scheduling method by adopting MU MIMO (Multiple User Multiple Input Multiple Output) technology, aiming to realize the scheduling of UE so as to share the resource except the resource occupied by the uplink channels scheduling E-PUCH (Enhanced Physical Uplink Channel) resource in MU MIMO mode or the uplink idle resource. The scheduling of the uplink channels out of the E-PUCH includes but not limited to: UL-DPCH (Uplink Dedicated Physical Channel), unscheduled E-PUCH, SPSE-PUCH, HS-SICH (High Speed Shared Information Channel), PRACH (Physical Random Access Channel) and E-RUCCH (E-DCH (Enhanced Dedicated Channel) Random-Access Uplink Control Channel). If the uplink channel types in the later TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) system increase, the invention can be extended to apply to the increased uplink channels, namely the scheme can realize the scheduling of UE to multiplex uplink resources constituted by all uplink time slots in MU MIMO mode, so the uplink throughputs and the uplink peak rate of the HSUPA can be improved. The invention also provides a midamble shift in a default configuration mode to distribute the midamble shift for the HSUPA UEs which multiplex the same resource.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a high-speed uplink packet (HSUPA) access technology, in particular to an HSUPA scheduler and a scheduling method using the multi-user multiple-input multiple-output (MU MIMO) technology. Background technique [0002] Currently, a Multi-User (MU) Multiple-Input Multiple-Output (MIMO) technology has been introduced into High Speed ​​Uplink Packet Access (HSUPA). That is: in the uplink direction, multiple HSUPA user equipments (UEs) can share the same scheduling enhanced dedicated channel physical uplink channel (E-PUCH) resource. These UEs sharing the same scheduled E-PUCH resource have different midamble shifts (Midamble Shift), and the midamble shift is used as a basis for distinguishing radio channels of these UEs. Different training sequence offsets are assigned to these UEs based on a special default configuration manner of training sequence offsets. The specif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04L1/06
Inventor 魏立梅赵渊沈东栋
Owner TD TECH COMM TECH LTD
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