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

Broadcasting/multicasting service transmitting method for TDD system

A technology of time division duplex system and multicast service, applied in diversity/multi-antenna system, radio/induction link selection arrangement, selection device, etc., can solve the problems of wasting system resources, unable to send data, etc., and improve reception performance , improve the utilization rate, eliminate the effect of interference

Active Publication Date: 2007-01-31
SHANGHAI ULTIMATE POWER COMM TECH
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the above three time slots t1, t2 and t3 are allocated to three MBMS sets respectively. When set 1 uses time slot t1, sets 2 and 3 cannot send data in the corresponding time slots, which greatly wastes system resources.

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
  • Broadcasting/multicasting service transmitting method for TDD system
  • Broadcasting/multicasting service transmitting method for TDD system
  • Broadcasting/multicasting service transmitting method for TDD system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The core of the present invention is that in a TDD system, when scheduling a certain broadcast / multicast service, determine the cell that needs to transmit the broadcast / multicast service in the system, and configure It uses the same time slot resource, and coordinates the synchronization of data transmitted by each cell to ensure that adjacent cells transmit the same data at the same time. In order to facilitate the UE to perform diversity combining, fixed time slots or time slot groups for carrying broadcast / multicast service signals can be set, or time slots or time slot groups for carrying broadcast / multicast service signals can be configured in real time, and adjacent cells The configured slots or groups of slots are the same. The UE determines neighboring cells for diversity combining through measurement, and performs diversity reception on the broadcast / multicast signals of these cells. Utilizing the same characteristic of data from each cell, joint detection is...

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

The invention discloses a method of transmitting broadcast / multicast service for a time division diplex (TDD) system, comprising the steps of: determining a village in the system which needs to transmit broadcast / multicast service; configuring channel resources to bear broadcast / multicast service for the system; when an adjacent village needs to transmit the same information, making the base station of the adjacent village transmit broadcast / multicast service signal in the same time gap or time gap group bearing broadcast / multicast service channel resources; user equipment makes diversity reception on the adjacent base station. And it can eliminate the interference of broadcast / multicast service with other time gap services and largely raise utilization ratio of system resources.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for transmitting broadcast / multicast services in a time division duplex system. Background technique [0002] With the rapid development of mobile communication technology and Internet (Internet) technology, multimedia communication technology has been developed rapidly. Some of the application services, such as video on demand, TV broadcast, video conferencing, online education, interactive games, etc., multiple users need Receive the same data at the same time. Compared with general service data, these mobile multimedia service data have the characteristics of large data volume and long duration. In order to effectively utilize mobile network resources, the global standardization organization 3GPP proposes MBMS (broadcast and multicast) services. MBMS refers to a point-to-multipoint service in which one data source sends data to multiple users to realize...

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
IPC IPC(8): H04B7/02H04Q7/22
Inventor 王映民胡金玲任世岩
Owner SHANGHAI ULTIMATE POWER COMM TECH