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Method and device for resource allocation in mimo communication system

A technology of user equipment, wireless communication network, applied in the field of computer program products

Active Publication Date: 2017-07-07
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although providing uplink MIMO facilitates transmission from user equipment to the network, unintended consequences can occur

Method used

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  • Method and device for resource allocation in mimo communication system

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Embodiment Construction

[0042] overview

[0043] Before discussing the embodiments in any more detail, an overview will first be provided. Embodiments provide techniques for selecting user equipment for uplink MIMO. Currently, it is proposed that the user equipment can only use 2 if the two streams are coded using 2×SF2+2×SF4. The problem with this approach is that, in case of limited buffering, the amount of information bits to be transmitted via the secondary stream may not exhaust the capacity provided by the 2xSF2+2xSF4 codes. Since the power of E-DPDCH and S-E-DPDCH is intended to be equal, the information bits in the secondary stream will consume unnecessarily high power, causing:

[0044] 1) unnecessarily high inter-stream interference; and

[0045] 2) Uplink interference to other users.

[0046] Embodiments impose criteria such that the secondary stream is only allowed to be fully utilized (ie, the secondary stream is established) when the secondary stream is to be fully utilized. In o...

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Abstract

The present invention reveals a method of controlling the uplink between the user device and the base station of the wireless communication data network multi-input multiple output transmission, the user device and the computer program product. The method comprises the following steps: identifying whether there is insufficient capacity on the primary uplink flow to carry pending uplink packets; And if there is insufficient capacity, then when it is determined that the pending uplink packets that will not be carried by the primary uplink flow will not make full use of the secondary uplink flow, to prevent the establishment of the secondary uplink flow. In this manner, to avoid disproportionate interference and resource consumption that could have been due to the establishment of the secondary stream in order to carry relatively few data, which reduces the resources utilized, increases power efficiency and minimizes interference.

Description

technical field [0001] The invention relates to a method of controlling uplink MIMO transmission between a user equipment and a base station of a wireless communication network, a user equipment and a computer program product. Background technique [0002] Known wireless telecommunications networks. Base stations in such networks provide wireless connectivity to user equipment within a geographic area or cell associated with the base station. The wireless communication link between the base station and each of the user equipment typically includes one or more downlink (or forward) channels for transmitting information from the base station to the user equipment and for transmitting information from the user equipment One or more uplink (or reverse) channels for transmission to a base station. [0003] Multiple-input multiple-output (MIMO) techniques may be employed when base stations and (optionally) user equipment include multiple antennas. For example, a user equipment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0023H04L5/0064H04W72/52H04W72/563H04B7/0413H04W28/0252
Inventor 黄晟峰马修·贝克
Owner NOKIA TECH OY