User equipment, node equipment and method for determining uplink timing relationship

A technology for user equipment and determination methods, applied in the direction of using the return channel for error prevention/detection, transmission system, digital transmission system, etc., can solve the problem that the uplink timing relationship cannot be determined, etc.

Inactive Publication Date: 2015-03-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The present invention proposes a method for determining user equipment, node equipment, and uplink timing relationship to solve the technical problem that the uplink timing relationship cannot be determined when FDD serving cells and TDD serving cells are aggregated and support cross-carrier scheduling

Method used

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  • User equipment, node equipment and method for determining uplink timing relationship
  • User equipment, node equipment and method for determining uplink timing relationship
  • User equipment, node equipment and method for determining uplink timing relationship

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0115] This embodiment provides a method for determining an uplink timing relationship, including the following operations:

[0116] When the FDD serving cell and the TDD serving cell are aggregated and support cross-carrier scheduling, the device determines the uplink HARQ timing relationship of the scheduled serving cell according to the type of the scheduled serving cell;

[0117] Specifically, when determining the uplink HARQ timing relationship of the scheduled serving cell according to the type of the scheduled serving cell: if the FDD serving cell is the scheduling serving cell and the TDD serving cell is the scheduled serving cell, the UE may determine in at least one of the following ways The uplink HARQ timing relationship of the TDD serving cell:

[0118] Method 1: The timing between PDCCH / EPDCCH and PUSCH on the TDD serving cell, or the timing between PUSCH and PHICH adopts the uplink HARQ timing relationship corresponding to FDD, and the timing between PUSCH and ret...

Embodiment 2

[0151] This embodiment provides a UE that can implement all the implementation methods in Embodiment 1 above, and the UE includes:

[0152] The first unit, when the FDD serving cell and the TDD serving cell are aggregated and support cross-carrier scheduling, the UE determines the uplink HARQ timing relationship of the scheduled serving cell according to the type of the scheduled serving cell;

[0153] The second unit sends uplink data according to the determined uplink HARQ timing relationship of the scheduled serving cell.

[0154] Wherein, when the FDD serving cell is the scheduling serving cell and the TDD serving cell is the scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the TDD serving cell in the following two ways:

[0155] 1. The timing between PDCCH / EPDCCH and PUSCH on the TDD serving cell, or the timing between PUSCH and PHICH adopts the uplink HARQ timing relationship corresponding to FDD, and the timing between PUSCH and r...

Embodiment 3

[0180] This embodiment provides a node device, which may be a base station, and includes at least two units.

[0181] The first unit, when the frequency division duplex (FDD) serving cell and the time division duplex (TDD) serving cell are aggregated and support cross-carrier scheduling, the system determines the uplink hybrid automatic retransmission of the scheduled serving cell according to the type of the scheduled serving cell request (HARQ) timing relationship;

[0182] The second unit receives uplink data according to the determined uplink HARQ timing relationship of the scheduled serving cell.

[0183] Wherein, when the FDD serving cell is the scheduling serving cell and the TDD serving cell is the scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the TDD serving cell in the following two ways:

[0184] Method 1. The timing between PDCCH / EPDCCH and PUSCH on the TDD serving cell, or the timing between PUSCH and PHICH adopts the up...

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Abstract

The invention discloses user equipment, node equipment and a method for determining an uplink timing relationship, and relates to the wireless communication technology. The method disclosed in the invention comprises: when a Frequency Division Duplex (FDD) service cell and a Time Division Duplex (TDD) service cell aggregate and support cross-carrier scheduling, the equipment determines an uplink Hybrid Automatic Resending Request (HARQ) timing relationship of the scheduled service cell in accordance with a type of the scheduled service cell. The invention further discloses the user equipment and the node equipment. Through the method for determining uplink timing relationship provided in the technical solution of the invention, a problem of determining uplink timing relationship when the FDD service cell and the TDD service cell aggregate is solved.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method for determining the relationship between user equipment, node equipment and uplink timing. Background technique [0002] The radio frame in LTE (Long Term Evolution) system and LTE-A (LTE-Advanced) system includes FDD (Frequency Division Duplex, Frequency Division Duplex) mode and TDD (Time Division Duplex) mode. Work, Time Division Duplex) mode frame structure. figure 1 It is a schematic diagram of the frame structure in the existing LTE / LTE-A FDD system, such as figure 1 As shown, a 10 millisecond (ms) wireless frame consists of twenty slots (slots) with a length of 0.5ms and numbers 0 to 19, and slots 2i and 2i+1 form a subframe (subframe) with a length of 1ms i. figure 2 It is a schematic diagram of the frame structure in the existing LTE / LTE-A TDD system. A 10ms radio frame consists of two half frames (half frame) with a length of 5ms. A half frame in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/18
CPCH04L5/001H04L5/0055H04L5/1469
Inventor 杨维维戴博梁春丽夏树强方惠英
Owner ZTE CORP
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