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High-speed packet transmission system

A transmission system, high-speed grouping technology, applied in the transmission system, digital transmission system, diversity/multi-antenna system, etc., can solve problems such as difficulty in implementation, interference, and reduced frequency utilization efficiency

Inactive Publication Date: 2003-01-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regardless of the method, it will become a large interference to other stations, and it is difficult to realize because the frequency utilization efficiency is significantly reduced.

Method used

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  • High-speed packet transmission system
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  • High-speed packet transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In this embodiment, it will be described that information for managing the order of packet transmission, such as the IP packet number itself or a number newly assigned to wireless transmission, is given to the base station in the uplink control signal from the communication terminal, and each base station This information is managed to enable synchronization among a plurality of base stations.

[0053] Figure 7 It is a block diagram illustrating the configuration of a base station apparatus in the high-speed packet transmission system according to Embodiment 1 of the present invention. exist Figure 7 In , only the transmission system used by the channel for transmitting high-speed packets is shown, and the transmission system used by the auxiliary control channel is omitted.

[0054] Figure 7 The illustrated base station device (hereinafter, abbreviated as base station) receives an uplink signal from a communication terminal device (hereinafter, abbreviated as com...

Embodiment 2

[0105] In this embodiment, it is described that a desired packet number is directly transmitted through an uplink from a communication terminal without managing the transmission order, and a check signal (for managing the transmission order) is periodically transmitted from the communication terminal indicating how the reception status is. information), a method to synchronize the transmission sequence of packet numbers between base stations.

[0106] Figure 11 It is a block diagram illustrating the configuration of a base station apparatus of a high-speed packet transmission system according to Embodiment 2 of the present invention. exist Figure 11 in, for with Figure 7 The same part is appended with Figure 7 The same reference numerals are used, and detailed descriptions are omitted.

[0107] Figure 11 The shown base station device is provided with a check signal detection circuit 301 instead of Figure 7 The packet number detection circuit 110 of the base station...

Embodiment 3

[0122] In this embodiment, it is explained that instead of exchanging control signals such as packet numbers or verification signals wirelessly between the communication terminal and the base station, a transmission rule is set between the base station and the control station so that the information of the packet numbers can be obtained between the base stations. The case of synchronous sending order.

[0123] For example, a restriction is set on scheduling management in the base station (a restriction is set for obtaining synchronization between base stations) so that transmission of all packets transmitted from the control station ends within a predetermined number of frames. In an extreme case, the transmission from the control station to the base station is performed in units of only one packet. The constraints information is entered into e.g. Figure 7 and Figure 11 The scheduling circuit 112 of the base station apparatus is shown. Then, the scheduling circuit 112 sch...

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PUM

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Abstract

A system for making efficient the high-speed packet transmission of a down line by a site selection diversity, wherein information for a base station to control the transmission order of packets, such as an IP packet number itself or a number given newly for wireless transmissions, is given to a control signal and is controlled at each base station. As a result, the packets are sequence-matched (or synchronized) between the base stations so that the synchronization of the transmission order such as the packet number can be controlled between the base stations while retaining a scheduling function at each base station.

Description

technical field [0001] The invention relates to a high-speed packet transmission system of a digital wireless communication system, in particular to a high-speed packet transmission system with station selection diversity. Background technique [0002] With the development of Internet-related technologies in recent years, various services such as music distribution can be provided using the Internet. In such a service, the amount of downlink transmission is very large. In order to realize a service with a large amount of downlink transmission, high-speed downlink packet transmission is highly expected. Furthermore, various technical developments are being made for such downlink high-speed packet transmission. [0003] As far as efficient transmission of high-speed packets is concerned, information such as line status can also be considered, and according to the line status, the transmission rate can be appropriately changed by changing the channel c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/10H04B7/005H04B7/26H04L1/00H04L1/12H04L1/18H04L12/28H04L12/70H04W4/00H04W36/18H04W52/40H04W84/12H04W88/08
CPCH04L1/1806H04W52/40H04L1/1809H04L2001/125H04L1/0003H04L1/1812H04L1/1803H04L1/1887H04W36/18H04B7/26
Inventor 宫和行上丰树
Owner PANASONIC CORP