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Terminal device and response signal transmission method

A terminal device, a technology for responding to a signal, applied in the direction of error detection/prevention using a signal quality detector, wireless communication, digital transmission systems, etc.

Active Publication Date: 2017-04-05
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the number of PUCCH resources required for notification of the error detection result mode is limited

Method used

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  • Terminal device and response signal transmission method
  • Terminal device and response signal transmission method
  • Terminal device and response signal transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0136] Figure 8 It is a main structural diagram of the terminal 200 of this embodiment. The terminal 200 communicates with the base station 100 using a plurality of component frequency bands including the first component frequency band and the second component frequency band, performs bundling including space bundling and time domain bundling for the error detection result of the downlink data, and sends The base station 100 notifies. In terminal 200, extraction section 204 extracts downlink data from the first component frequency band and the second component frequency band. Thus, downlink data is received in terminal 200 . The CRC section 211 detects an error of each downlink data, and the response signal generating section 212 bundles the error detection results based on the ratio of the number of bits of the error detection result between the first component frequency band and the second component frequency band so that the CRC section 211 The total number of bits of t...

Embodiment approach 2

[0245] In this embodiment, the terminal 200 ( Figure 10 ) based on the number of bits (ratio of the number of bits between CCs) of the error detection result of each CC after spatial bundling determines to base station 100 ( Figure 9 ) is the same as the first embodiment in that the number of bits of the error detection result notified. In Embodiment 1, terminal 200 performs time-domain bundling for each CC, and allocates so that bundling rates are equal among CCs. On the other hand, in this embodiment, terminal 200 performs time-domain bundling and frequency-domain bundling (frequency-domain bundling) in all CCs so that the bundling rate is equal among CCs, This point is different from Embodiment 1.

[0246] Specifically, the response signal generation unit 212 of the terminal 200 performs time-domain bundling and frequency-domain bundling, so that the number of bits of the error detection results of all CCs obtained after spatial bundling is Image 6 The number of bits ...

Embodiment approach 3

[0261] In Embodiments 1 and 2, the terminal 200 ( Figure 10 ) A case where time-domain bundling (or frequency-domain bundling) of each CC is performed based on the number of bits of the error detection result of each CC after spatial bundling (ratio of the number of bits among CCs). In contrast, in this embodiment, a case will be described in which terminal 200 performs bundling for each CC based on the number of bits of error detection results before bundling (spatial bundling and time domain bundling).

[0262] Specifically, the response signal generation section 212 of the terminal 200 determines the ratio between CCs based on the number of bits of the error detection result before bundling. Image 6 The number of bits per CC to be mapped in step 3 of (a). Furthermore, response signal generating section 212 performs bundling (spatial bundling and time-domain bundling) for each CC so that the error detection result of each CC becomes the specified number of bits.

[0263]...

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Abstract

It is disclosed that, in communication using an uplink component band and a plurality of downlink component bands associated with the uplink component band, ARQ is applied and UL-DL configurations set for each component band are different, enabling correct transmission and reception Terminal device for error detection results. The terminal (200) notifies the base station (100) of the response signal generated by binding the error detection results of the downlink data of the first component frequency band and the second component frequency band to the base station (100), and the extraction unit (204) receives each component frequency band respectively Downlink data; the CRC unit (211) detects the error of each downlink data, and the response signal generation unit (212) binds the error detection result based on the ratio of the number of bits of the error detection result between the first unit frequency band and the second unit frequency band Determined so that the total number of bits of the error detection results of each downlink data obtained by the CRC unit (211) is the number of notification bits of the response signal, thereby generating the response signal.

Description

technical field [0001] The present invention relates to a terminal device and a response signal transmission method. Background technique [0002] In 3GPP LTE, OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) is adopted as a downlink communication method. In a wireless communication system to which 3GPP LTE is applied, a base station transmits a synchronization signal (Synchronization Channel: SCH) and a broadcast signal (Broadcast Channel: BCH) using predetermined communication resources. And, the terminal first ensures synchronization with the base station by acquiring the SCH. Then, the terminal reads the BCH information to interpret base station-specific parameters (such as bandwidth, etc.) (see Non-Patent Documents 1, 2, and 3). [0003] In addition, after completing the acquisition of the parameters dedicated to the base station, the terminal sends a connection request to the base station, thereby establishing commu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04W16/28H04W28/04
CPCH04L1/0061H04L1/20H04L1/1607H04L1/1861H04L41/0654
Inventor 大泉透今村大地星野正幸堀内绫子
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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