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Methods, devices and computer program products for interference reduction in TDD systems allowing allocation of flexible subframes for uplink or downlink transmission

A technology for downlink and link transmission, applied in the field of interference reduction to achieve the effect of reducing interference

Inactive Publication Date: 2014-01-15
BROADCOM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, interference between PDCCH / PCFICH / CRS and PUCCH still exists

Method used

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  • Methods, devices and computer program products for interference reduction in TDD systems allowing allocation of flexible subframes for uplink or downlink transmission
  • Methods, devices and computer program products for interference reduction in TDD systems allowing allocation of flexible subframes for uplink or downlink transmission
  • Methods, devices and computer program products for interference reduction in TDD systems allowing allocation of flexible subframes for uplink or downlink transmission

Examples

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Embodiment 2

[0068] A physical channel denoted as "channel C" between the eNB#1 of the first type and all other eNBs#2-#N of the second type is introduced in the flexible subframe #m. The physical channel C may be based on the PDSCH or PUSCH / PUCCH format specified in LTE Rel-8 / 9 / 10. The information transmitted by the physical channel C includes at least scheduling information in a period immediately following the flexible subframe #m.

[0069] In fact, the information about channel C may not be as exemplary figure 1 (Illustrated as being transmitted in subframes 3, 4, 8, and 9) each radio frame suggested in it is transmitted four times. In the scenario shown, the information will be figure 1 Not shown in the figure in the UL scheduling in the subframe. If this information is shared less frequently, such as once every 10ms or 20ms (ie, once per radio frame or once every two radio frames), this information can be considered by eNB#2 before performing UL scheduling in flexible subframes ( For ...

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Abstract

The present invention proposes methods, devices and computer program products in relation to interference reduction, in particular for devices comprising a transceiver module configured for TDD operation in a network environment wherein a partition of subframes of channels are configurable to be flexibly assigned for downlink or uplink transmission while other subframes are fixedly configured for either uplink or downlink transmission. Aspects of such devices encompass a controller module configured to determine those subframes that are flexibly assigned and configured for downlink transmission, identify, among those determined subframes, a subframe carrying a control channel, and restrict physical resources for the control channel in the identified subframe. In another aspect, such devices encompass control of a transmitter of the transceiver module to transmit information indicative of restricted physical resources for the control channel in the identified subframe. The invention also addresses corresponding receiving devices and terminals as well as associated methods.

Description

Technical field [0001] The present invention relates to a method, device and computer program product for interference reduction in a TDD system that allows flexible subframe allocation for uplink or downlink transmission. More specifically, the present invention relates to a method and device configured for TDD operation in a network environment and for reducing interference of a control channel in such an environment, wherein a part of the subframe of the channel can be configured to be flexibly allocated for use. For downlink or uplink transmission, and other subframes are fixedly configured for uplink or downlink transmission. Background technique [0002] Mobile data transmission and data services continue to make progress. As the popularity of such services increases, there is a need for increased bandwidth for transferring data. The more efficiently the bandwidth is used, the higher the chance of interference. In particular, interference to control data or control chann...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W28/04
CPCH04W72/0446H04L1/0006H04B7/2643H04W28/04H04W72/20H04L5/14
Inventor 曾二林高春艳汪海明韩晶
Owner BROADCOM CORP
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