Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus and method for transmitting control information in a mobile communication system

A mobile communication system and a technology for sending data, applied in transmission systems, wireless communications, digital transmission systems, etc., can solve problems such as data loss

Inactive Publication Date: 2005-08-10
SAMSUNG ELECTRONICS CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] exist figure 1 In the shown scheme, since ACK / NACK information must be inserted within the predetermined interval of the traditional physical channel, the data sent through the traditional physical channel will be lost
In addition, in figure 2 In the scheme shown, although the data sent through the traditional physical channel will not be lost, the power (power) of the physical channel and the additional OVSF code generated by sending ACK / NACK information must be used

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for transmitting control information in a mobile communication system
  • Apparatus and method for transmitting control information in a mobile communication system
  • Apparatus and method for transmitting control information in a mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0037] image 3 is a block diagram showing the structure of a transmitter that transmits ACK / NACK information according to the first embodiment of the present invention. The first embodiment provides a scheme of sending ACK / NACK information through a pilot field (field) of a traditional downlink dedicated physical channel (DPCH).

[0038] In the first embodiment, it is assumed that the phase reference of the dedicated channel is the Common Pilot Channel (CPICH). That is, the dedicated channel DPCH is transmitted after the dedicated physical control channel (DPCCH) (ie, control channel), and the dedicated physical data channel (DPDCH) (ie, data channel) is time-division multiplexed. In addition, the phase reference of the dedicated channel is transmitted through the DPCCH. That is, a pilot field capable of serving as a reference for supporting dedicated channel estimation and channel compensation beamforming is transmitted through the DPCCH. In the first embodiment of the pr...

no. 2 example

[0066] Figure 7 A block diagram showing the structure of a transmitter that transmits ACK / NACK information according to the second embodiment of the present invention. The second embodiment proposes a scheme of sending ACK / NACK information through the pilot field of the traditional downlink DPCH. The transmitter includes a DPDCH generator 700 , a DPCCH generator 702 , a multiplexer 704 , a pilot pattern insertion unit 706 , a modulator 708 and a pilot pattern selector 710 .

[0067] A Node B that has received uplink packet data from a UE demodulates the received data. According to the result of demodulation, the Node B analyzes whether the received data contains errors and generates ACK / NACK information. When the received data contains an error, the Node B generates NACK information requesting retransmission of the packet data. On the contrary, when the received data contains no error, the Node B generates ACK information not requesting retransmission of the packet data. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An apparatus and a method for transmitting control information in a mobile communication system are disclosed. In a mobile communication system including a transmitter for transmitting data and a receiver for receiving the data, when transmitting information regarding whether the data have been received, the receiver generates identifiers having different signs according to whether received data contain an error, adds the generated identifiers to a physical channel, and transmits the physical channel. The transmitter detects a sign corresponding to an existence or absence of an error from the information regarding whether or not the data have been received, detects transmission error for the data according to the detected sign, and determines whether the data are retransmitted according to a result of the detection.

Description

technical field [0001] The invention relates to a device and method for sending control information indicating whether uplink packet data is received in a mobile communication network. In particular, the present invention relates to an apparatus and method for transmitting control information without using a separate channel or code. Background technique [0002] In the Code Division Multiple Access (CDMA) mobile communication system, the IS-95 standard mainly used for transmitting and receiving voice signals has been developed to the International Mobile Telecommunications (IMT)-2000 standard capable of transmitting voice and high-speed data. The IMT-2000 standard is positioned at high-quality voice services, dynamic image services and Internet search services. [0003] As described above, mobile communication systems include various schemes for providing information such as voice, data, and the like. A representative scheme is the High Speed ​​Downlink Packet Access (HSD...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04J13/00H04B1/709H04J13/18H04L1/12H04L1/16H04L1/18H04L29/00H04W16/00H04W28/00H04W28/04H04W28/06H04W76/02H04W92/10
CPCH04L1/1671H04L69/00
Inventor 韩定勋林永析白琼铉朱正熏文庸石
Owner SAMSUNG ELECTRONICS CO LTD