Method and apparatus for operating supplementary cells in licensed exempt spectrum

A cell and cell aggregation technology, applied in duplex signal operation, communication between multiple stations, wireless communication, etc., can solve problems such as limited aggregation situations

Inactive Publication Date: 2013-12-18
INTERDIGITAL PATENT HLDG INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the aggregation scenarios they support may be very limited (e.g. DL is usually performed in scenarios where the number of DL SCCs may exceed the number of UL SCCs used in aggregation)

Method used

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  • Method and apparatus for operating supplementary cells in licensed exempt spectrum
  • Method and apparatus for operating supplementary cells in licensed exempt spectrum
  • Method and apparatus for operating supplementary cells in licensed exempt spectrum

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Embodiment

[0165] CLAIMS 1. A method of aggregating carriers, the method comprising providing an aggregated cell configured to operate in frequency division duplex (FDD) licensed spectrum.

[0166] 2. The method of embodiment 1, further comprising associating the aggregated cell with at least one license-exempt (LE) supplementary cell operating in time-shared mode for uplink (UL) operation and downlink (DL) operation polymerization.

[0167] 3. The method according to any one of the above embodiments, wherein the at least one LE supplementary cell is dynamically configurable between UL-only mode, DL-only mode and shared mode to match the requested ratio of UL service to DL service FDD supplementary cells.

[0168] 4. The method according to any one of the preceding embodiments, wherein for shared mode, the at least one LE supplementary cell switches between UL and DL at switching intervals to match the requested UL traffic to DL traffic ratio.

[0169] 5. The method according to any on...

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Abstract

A method and an apparatus for operating supplementary cells in licensed exempt (LE) spectrum are disclosed. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary / secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 440,288, filed February 7, 2011, and U.S. Provisional Patent Application No. 61 / 560,571, filed November 16, 2011, the contents of each of which are hereby incorporated by reference . technical field [0003] This application relates to wireless communications. Background technique [0004] As the number of mobile users continues to increase, additional licensed spectrum is required to support these mobile users. However, licensed-band spectrum is not immediately available, and obtaining licensed-band spectrum can be very expensive. Therefore, there is an urgent desire to deploy cellular radio access technologies, such as Long Term Evolution (LTE), for example in newly available spectrum, such as Television White Space (TVWS) or unlicensed bands, which may be collectively referred to as licensed exempt (LE) spectrum. ). [0005] The operation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W72/08H04L5/06H04L5/14H04B7/26H04W16/24
CPCH04L1/1893H04L5/06H04L5/143H04W16/24H04L1/1812H04L1/1861H04W16/14H04W28/16H04W72/0453H04W72/541H04W72/0446H04W16/32H04W72/04H04W72/12H04W74/08H04W72/54H04L5/14H04L5/1469H04L5/0032H04L5/0055
Inventor J-L·格鲁M·M·弗雷达林子柟J·M·默里叶春璇E·巴拉M·C·贝卢里D·R·卡斯特A·V·辛丘利A·A·卡费洛Y·戴A·德米尔J·W·格雷多纳杨瑞马良平R·迪吉罗拉墨A·陶格D·帕卡亚斯塔
Owner INTERDIGITAL PATENT HLDG INC
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