Subframe offset in tdd-fdd carrier aggregation

A technology of carrier aggregation and subframe offset, which is applied in the field of communication systems and can solve problems such as limited flexibility and/or efficiency

Inactive Publication Date: 2016-05-11
SHARP KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, the communication structure used may on

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  • Subframe offset in tdd-fdd carrier aggregation
  • Subframe offset in tdd-fdd carrier aggregation
  • Subframe offset in tdd-fdd carrier aggregation

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[0024] The 3rd Generation Partnership Project (also referred to as "3GPP") is a collaborative agreement aimed at defining globally applicable technical specifications and technical reports for third and fourth generation wireless communication systems. 3GPP may define specifications for next generation mobile networks, systems and devices.

[0025] 3GPP Long Term Evolution (LTE) is the name of a project for improving the Universal Mobile Telecommunications System (UMTS) mobile phone or equipment standard to meet future requirements. In one aspect, UMTS has been modified to provide support and specifications for Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN).

[0026] At least some aspects of the systems and methods disclosed herein may be described in conjunction with 3GPP LTE, LTE-Advanced (LTE-A), and other standards (eg, 3GPP Releases 8, 9, 10, and / or 11). However, the scope of the present disclosure shou

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Abstract

One embodiment of the present invention discloses a user equipment (UE) for performing carrier aggregation, comprising: a processor; memory in electronic communication with the processor, wherein instructions stored in the memory are executable to: determine a duplex method of each serving cell for frequency-division duplexing (FDD) and time-division duplexing (TDD) carrier aggregation, wherein at least one serving cell is a TDD cell and at least one serving cell is a FDD cell; determine a subframe offset; determine physical downlink shared channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) transmission timing for a serving cell, wherein when a primary cell is a TDD cell, the PDSCH HARQ-ACK transmission timing for the serving cell is determined based on a downlink (DL) association set with the subframe offset for the serving cell; and send PDSCH HARQ-ACK information based on the PDSCH HARQ-ACK transmission timing.

Description

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Claims

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Application Information

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Owner SHARP KK
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