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

Base station device, user device and method for mobile communication system

A user device and mobile communication technology, applied in wireless communication, signaling distribution, transmission path sub-channel distribution, etc., can solve problems such as unfavorable wireless transmission, achieve the effect of shortening delay and ensuring interchangeability

Inactive Publication Date: 2011-05-25
NTT DOCOMO INC
View PDF1 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, as it is, it is not conducive to wireless transmission

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
  • Base station device, user device and method for mobile communication system
  • Base station device, user device and method for mobile communication system
  • Base station device, user device and method for mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058]

[0059] image 3 An example of a subframe structure is shown. In downlink transmission, one subframe is, for example, 0.5 ms or 1 ms, and there are 14 OFDM symbols in one subframe. exist image 3 Among them, the numbers (#1, #2, #3, . . . .., #L−1, #L, L is a positive integer) represents a number for identifying a resource block.

[0060] In the first M OFDM symbols of the subframe, the above-mentioned physical downlink control channel PDCCH and the like are mapped. As the value of M, three types of 1, 2, and 3 are set. exist image 3 , the physical downlink control channel described above is mapped to two OFDM symbols from the head of one subframe, that is, OFDM symbols #1 and #2 (that is, M=2). In addition, user data and a synchronization channel (SCH: Synchronization Channel), a broadcast channel (BCH: Physical Broadcast Channel), and / or A data channel using persistent scheduling (Persistent Scheduling), etc.

[0061] Figure 4 It schematically shows a ca...

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

A downlink control channel transmitted by a base station device comprises multiple control channel elements (CCE), and the PUCCH resources are determined so as to differ in response to the CCE to which the control information for each user device destination corresponds. When the PDSCH of a given sub-frame is allocated to the user device of an old system, the control information of said user device destination is allocated to a given CCE, and the PDSCH of a sub-frame which comes a prescribed interval after the given sub-frame is allocated to the user device of a new system, the control information of said user device destination can be associated with a CCE other than the given CCE. Alternatively, the same CCE as for the control information of the user device destination of the first system is associated with the control information of the user device destination of the second system, but it is possible to distribute using a different spread code.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a mobile communication system, base station device, user device and method using the next generation mobile communication technology. Background technique [0002] In this technical field, a so-called third-generation subsequent mobile communication system is being studied by 3GPP, a standardization body for the Wideband Code Division Multiple Access (W-CDMA) system. In particular, not only Long Term Evolution (LTE: Long Term Evolution) but related Further follow-up research on mobile communication methods. As a successor to the LTE system, for example, LTE-Advanced (LTE-Advanced) or a fourth-generation mobile communication system or the like can be mentioned. [0003] figure 1 A conceptual diagram representing a mobile communication system. The mobile communication system includes a cell 50 and a user equipment 100 located in the cell 50 1 、100 2 、100 ...

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): H04W72/04H04W72/12H04W28/04H04W72/14
CPCH04W72/0406H04W72/1278H04W72/1215H04W72/20H04L5/0055H04W72/23H04W72/0446H04W72/21H04W72/1273
Inventor 三木信彦岸山祥久丹野元博佐和桥卫
Owner NTT DOCOMO INC