Device and method for dividing resource blocks of wireless communication system

A wireless communication system and channel resource technology, applied in the field of dividing channel resources, to achieve good frequency diversity effect and small signaling requirements

Inactive Publication Date: 2007-09-26
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Aiming at the problems existing in the existing methods, the present invention pr

Method used

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  • Device and method for dividing resource blocks of wireless communication system
  • Device and method for dividing resource blocks of wireless communication system
  • Device and method for dividing resource blocks of wireless communication system

Examples

Experimental program
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Embodiment

[0052] This part gives two embodiments of the invention, where it is assumed that the system pre-allocates one distributed physical resource unit, and the situation of pre-allocating multiple distributed physical resource units can be realized by a similar method. In order to avoid making the description of this patent too lengthy, in the following description, detailed descriptions of functions or devices that are well known to the public are omitted.

no. 1 example

[0054] In this embodiment, it is assumed that the system resources are divided into 12 physical resource units, and each physical resource unit contains an equal number of time-frequency resources, and it is assumed that the resources of the distributed physical resource units are evenly distributed to all the system bandwidth and subframe Symbolically, the resources of the distributed physical resource unit and the localized physical resource unit divided by the system are interleaved with each other. For the convenience of drawing, the resource distribution style of the distributed physical resource units in FIGS. 2 to 4 is just an example.

[0055] FIG. 2 is a distribution diagram of physical resource units pre-allocated by the system in this manner. As shown in the figure, each evenly dispersed time-frequency resource forms a distributed physical resource unit (200) suitable for distributed transmission; then the remaining time-frequency resources are continuously divided ...

no. 2 example

[0061] In this embodiment, it is assumed that the system resources need to be divided into 12 physical resource units, and each physical resource unit contains an equal number of time-frequency resources, and it is assumed that the allocated resources of the distributed physical resource units are different from those of the localized physical resource units. Resources do not interleave with each other and are completely separated in the frequency domain.

[0062] FIG. 5 is a distribution diagram of physical resource units pre-allocated by the system in this manner. As shown in the figure, resource blocks (5000) and resource blocks (5001) contain equal or substantially equal numbers of resources, and together they form a distributed physical resource unit (500) suitable for distributed transmission; then the remaining Resources are continuously divided into 11 localized physical resource units (501~511) suitable for localized transmission; the number of time-frequency resource...

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Abstract

The division method for channel resource in a wireless communication system comprises: pre-dividing some resource from system physical time-frequency source to carry at least one distributed physical resource unit for distributed transmission, setting the number as n; dividing the residual resource into (N-n) local physical resource units for local distributed transmission; and mapping the distributed/local virtual resource block to the distributed/local physical resource unit, respectively. This invention can provide well frequency diversity effect, and affects little to local transmission user.

Description

technical field [0001] The present invention relates to a wireless communication system, and more specifically relates to a device and method for dividing channel resources in a wireless communication system. Background technique [0002] Now, the 3GPP standardization organization has begun to carry out long-term evolution (LTE, Long Term Evolution) of its existing system specifications. Among the many physical layer transmission technologies, Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) technology has become a promising one among all downlink solutions due to its high spectrum utilization rate and low processing complexity. kind. OFDM technology is essentially a multi-carrier modulation communication technology. Its basic principle is to decompose a high-rate data stream into several low-rate data streams and transmit them simultaneously on a group of mutually orthogonal sub-carriers. OFDM technology has performance advanta...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04B7/26
Inventor 李迎阳李小强张玉建李周镐
Owner BEIJING SAMSUNG TELECOM R&D CENT
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