Wireless communication system and device

A wireless communication system and equipment technology, applied in the field of wireless communication, can solve problems such as unmatched wireless resources, channel capacity waste, and user experience degradation, and achieve the effects of saving control overhead and scheduling overhead, reducing complexity, and improving system efficiency

Inactive Publication Date: 2013-05-29
BEIJING NUFRONT MOBILE MULTIMEDIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Although the Femto system also allocates radio resources for different terminals through scheduling for uplink and downlink communication, its statically configured frame structure cannot match the flexibly allocated radio resources for uplink and downlink, and cannot adapt to service changes with a small granularity. When the business and resource allocation are unbalanced, it may cause long queues, reduce user experience, or cause waste of channel capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] figure 1 It is a schematic diagram of the frame structure provided by Embodiment 1 of the present invention.

[0135] Such as figure 1 As shown, the abscissa represents time, and the ordinate represents frequency, and the frame only includes downlink subframes and guard intervals. A downlink subframe includes at least a preamble sequence and a system information channel. The duration of the preamble sequence and the system information channel is preset, and there is no need for the network device to indicate in the frame structure indication information. Therefore, the frame structure indication information in this embodiment indicates the communication frame other than the preamble sequence and the system information channel. The existence and configuration of other channels in the

[0136] Preamble can be divided into short training sequence and long training sequence. Among them, the short training sequence is used for frame detection, automatic gain control, coa...

Embodiment 2

[0142] figure 2 It is a schematic diagram of the frame structure provided by Embodiment 2 of the present invention.

[0143] Such as figure 2 shown in figure 1 The basic uplink subframe may also include control channels and downlink transmission channels.

[0144] The control channel is used to send allocation and scheduling of transmission resources, and the transmission format of channels occupying transmission resources. Specifically, according to the application scenario, the control channel can indicate the allocation and scheduling of one or more transmission resources of the downlink transmission channel, downlink sounding channel, uplink transmission channel, uplink sounding channel, uplink scheduling request channel and uplink random access channel , and the transmission format of these channels.

[0145] The downlink transmission channel is used for the network equipment to transmit downlink services, and / or downlink control signaling, and / or feedback informati...

Embodiment 3

[0149] image 3 It is a schematic diagram of the frame structure provided by Embodiment 3 of the present invention.

[0150] Such as image 3 shown in figure 2 The uplink subframe may also be included on the basis of the uplink subframe, and the uplink subframe includes an uplink transmission channel.

[0151] The uplink transmission channel is used for the terminal device to transmit uplink service data, and / or uplink signaling, and / or feedback information to the network device. The feedback here may include feedback for downlink services, and may also include feedback for downlink channel quality information (CQI) and / or downlink channel state information (CSI).

[0152] Perform uplink traffic scheduling transmission, and / or uplink signaling scheduling transmission, and / or uplink feedback scheduling transmission on the uplink transmission channel.

[0153] Each terminal device can share uplink transmission resources by time division, frequency division, code division, s...

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Abstract

The invention discloses a wireless communication system, a network device and a terminal device. The network device is used for dynamically configuring the structure and the length of a current communication frame and transmitting frame structure configuration information in the current communication frame, and the terminal device is used for acquiring the structure and the length of the current communication frame according to the frame structure configuration information of the current communication frame. By dynamically configuring the frame structure, different service features and requirements of future rich and varied data services are considered, the flexible variable frame structure simultaneously meeting link adaptation and service requirements is designed for adaptive dynamic resource allocation, and the requirements of devices with different processing capacities can be met. By dynamically configuring the frame length, and control overhead, scheduling overhead and implementation complexity can be reduced.

Description

[0001] This application claims the priority of the earlier application with the application date of March 25, 2011, the application number 201110074598.5, and the title of the invention "Adjustment method and system for demodulation pilot in wireless communication system". The content has been reflected in this application. [0002] This application claims the priority of the earlier application with the application date of March 31, 2011, the application number 201110081193.4, and the title of the invention as "a wireless communication method, system and equipment". reflected in this application. [0003] This application claims the priority of the earlier application whose application date is May 19, 2011, application number is 201110130194.3, and the title of the invention is "a communication system". The entire content of the earlier application has been embodied in this application. [0004] This application claims the priority of the earlier application with the filing da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W74/08
Inventor 鲍东山王竞刘慎发雷俊潘立军闫志刚王飞飞
Owner BEIJING NUFRONT MOBILE MULTIMEDIA TECH
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