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Method and apparatus for mitigating downlink control channel interference

A reference signal and indication technology, applied in the direction of synchronization device, wireless communication, network topology, etc., can solve the problems of throughput reduction, terminal failure to read common control channel, physical downlink shared channel performance degradation, etc.

Active Publication Date: 2014-10-29
GOOGLE TECHNOLOGY HOLDINGS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In both connected mode and idle mode, this can cause problems, such as 1) the terminal cannot reliably decode the paging channel leading to missed pages, and thus cannot receive terminal terminated calls; 2) the terminal cannot read the common control channel; 3) Throughput reduction or Physical Downlink Shared Channel (PDSCH) performance degradation

Method used

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  • Method and apparatus for mitigating downlink control channel interference
  • Method and apparatus for mitigating downlink control channel interference
  • Method and apparatus for mitigating downlink control channel interference

Examples

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Embodiment Construction

[0019] figure 1 is an exemplary block diagram of system 100 according to a possible embodiment. The system 100 may include a terminal 110 , a first cell 140 , a first cell base station 145 , a second cell 130 , a second cell base station 135 , and a network controller 120 . Terminal 110 may be a wireless communication device such as a wireless telephone, cellular telephone, personal digital assistant, pager, personal computer, selective call receiver, or any other device capable of sending and receiving communication signals over a network including wireless networks. The first base station 145 may be a heterogeneous cell base station, such as a home base station or a relay node, and the second base station 135 may be a macro cell base station. For example, a heterogeneous cell base station may be a closed subscriber group base station, a relay node, a flying cellular base station, a picocell base station, or any other base station that may be within the coverage of a macroce...

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Abstract

A method and apparatus that mitigates downlink control channel interference is disclosed. The method can include receiving a transmission from a network entity and determining a first timing offset to transmit a downlink subframe based on the transmission received from the network entity. The method can include receiving an uplink transmission from a mobile terminal and determining a second timing offset based on the first timing offset and based on the received uplink transmission. The method can include transmitting a timing advance command to the mobile terminal, the timing advance command including the second timing offset.

Description

[0001] This application is a divisional application of an invention patent application with an application date of September 8, 2010, an application number of 201080045310.5, and an invention title of "Method and Device for Alleviating Downlink Control Channel Interference". technical field [0002] The present disclosure relates to a method and apparatus for mitigating downlink control channel interference. More specifically, the present disclosure relates to the problem of mitigating downlink interference from high-power base stations when low-power base stations are deployed within the coverage of high-power base stations. Background technique [0003] Currently in telecommunications, heterogeneous cells such as Closed Subscriber Group (CSG) cells, hybrid cells, femtocells, pico cells, relay nodes, or other heterogeneous cells can be used in e.g. residential or small business environments Cellular base stations in small coverage areas. It connects to the service provider...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04W56/00H04W72/54
CPCH04W72/0473H04W72/082H04W56/0045H04W72/0406H04W84/045H04W72/20H04W72/541H04W52/04H04W56/001H04W88/08H04W92/20H04W72/23H04L5/0051H04W72/0446
Inventor 桑迪普·克里希纳穆尔蒂罗伯特·洛夫维贾伊·南贾拉维克兰·诺里
Owner GOOGLE TECHNOLOGY HOLDINGS LLC