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Media access control frame structure in wireless communication network

A medium access control and wireless communication network technology, applied in the field of medium access control frame structure, can solve the problems of inaccurate CSI information, reduced joint transmission performance, and inability to make full use of it, so as to meet resource requirements and reduce information. The effect of improving transmission cost and network operation efficiency

Inactive Publication Date: 2006-07-12
SIEMENS CHINA
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Problems solved by technology

However, since the sender needs to wait for the CSI information from the receiver, compared with joint detection, the signaling overhead and CSI delay of joint transmission are much larger, which also means that the CSI information is not very accurate in the case of fast fading , thus degrading the performance of the joint launch
[0011] Based on the above situation, it can be seen that joint detection is suitable for fast fading channels, but the receiving end needs to provide high enough computing power
On the other hand, joint transmission can simplify the computational complexity of the receiver, but it is not suitable for fast fading channels
[0012] There is no corresponding communication protocol or structure in the prior art to ensure the simultaneous use of joint detection and joint emission, so joint detection and joint emission cannot be used at the same time, resulting in the inability to fully utilize the advantages of both

Method used

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  • Media access control frame structure in wireless communication network
  • Media access control frame structure in wireless communication network
  • Media access control frame structure in wireless communication network

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Embodiment Construction

[0041] FIG. 3 is a diagram illustrating signal functions of the downlink MAC frame structure of the present invention. In the downlink transmission in FIG. 3 , mobile terminals can be divided into two types: joint detection mobile receiving terminals and joint transmission mobile receiving terminals. When a mobile terminal registers with a cell, the mobile terminal must indicate the capabilities it can provide (for example, whether it can support joint detection), and then the central control unit can use channel conditions, such as the number of antennas, the corresponding channel quality, the mobile speed of the terminal, etc. Factors adaptively and dynamically divide mobile terminals into joint detection mobile receiving terminals (JD-MT 1 to JD-MT m) and joint transmission mobile receiving terminals (JT-MT 1 to JT-MT n). In each frame, corresponding adjustments are also made to the joint detecting mobile receiving terminal and the joint transmitting mobile receiving termin...

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Abstract

A wireless communication network medium accessing control frame structure, Which includes one down link frame and one uplink , above-mentioned down link frame containing broadcast stage frame and data service stage , above-mentioned broadcast stage containing one pilot frequency domain, one broadcast control domain, one accessing control domain one frame control domain , above-mentioned frame control domain divided into combined detecting frame control part, combined detecting / transmitting frame control part, above-mentioned uplink frame containing one channel state information reporting domain one data service domain, one wireless resource request domain, and one random accessing domain, Said invention reduces multi-user interference and raises mobile communication systematical capacity.

Description

(1) Technical field [0001] The invention relates to a medium access control frame structure in a wireless communication network, which is used in a third-generation mobile communication (B3G) system to use distributed coordinated antennas to simultaneously perform mixed joint detection and joint transmission. (2) Background technology [0002] Mobile communication technology has gone through three generations. The third generation mobile communication system (3rd Generation Mobile Communications System; 3G) is a mobile communication system that is being fully developed. It can provide various broadband information services that the previous two generations of products cannot provide, such as high-speed data, TV images, etc. The third generation mobile communication system will be put into the market in recent years. [0003] In order to provide higher-quality multimedia data services while providing voice services, a concept of a Beyond Third Generation (B3G) system has eme...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 常欣郦辉
Owner SIEMENS CHINA
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