Method and device for allocating and scheduling radio resources in orthogonal frequency division multiplexing (OFDM) system

A technology of wireless resources and orthogonal frequency division, applied in multi-frequency code systems, transmission systems, wireless communications, etc., can solve the problems of system spectrum efficiency decline and wireless resource waste, so as to improve the utilization rate of wireless resources and save wireless resources Effect

Inactive Publication Date: 2011-11-09
ZTE CORP
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Problems solved by technology

Therefore, when the existing LTE system bears such services, a large waste of wireless resources will be generated, because only a small ratio of the allocated wireless resources is used, resulting in a serious decline in the spectral efficiency of the entire system

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  • Method and device for allocating and scheduling radio resources in orthogonal frequency division multiplexing (OFDM) system
  • Method and device for allocating and scheduling radio resources in orthogonal frequency division multiplexing (OFDM) system
  • Method and device for allocating and scheduling radio resources in orthogonal frequency division multiplexing (OFDM) system

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Embodiment Construction

[0048] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0049] The main ideas of wireless resource allocation and scheduling in the present invention are as follows: figure 2 shown, including:

[0050] Step 201, the network side defines at least one kind of short resource unit, and the short resource unit is smaller than a resource block RB.

[0051] In order to improve the efficiency of radio resource allocation and ensure compatibility with the radio resource allocation of the prior art, the radio resource unit is redefined by the network side in the present invention. The characteristic of the redefined radio resource unit is that it must be smaller than the radio resource unit in the existing LTE system. The radio resource unit is RB. Therefore, the present invention calls the redefined radio resource unit a short resource unit, wherein the network side can define a...

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Abstract

The invention discloses a method for allocating and scheduling radio resources in an orthogonal frequency division multiplexing (OFDM) system. The method comprises the following steps of: defining at least one short resource unit on a network side, wherein the short resource unit is smaller than a resource block (RB); selecting a short resource unit at an evolved node B (eNB); and allocating the radio resources for user equipment (UE) according to the selected short resource unit at the eNB, and notifying the UE of scheduling information of the radio resources. The invention also discloses a device for allocating and scheduling the radio resources in the OFDM system. By the method, more efficient resource allocation can be provided for a service with small data volume so as to improve the utilization rate of the radio resources.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a wireless resource allocation and scheduling method and device for an OFDM system. Background technique [0002] In the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) of the third-generation mobile communication Long Term Evolution (LTE, Long Term Evolution) system, the uplink data shares the channel through the physical uplink (PUSCH, Physical Uplink Shared Channel) transmission, and downlink data is transmitted through a Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel). [0003] The evolved base station (eNB, Evolved NodeB) allocates uplink radio resources to each user terminal (UE, User Equipment) for uplink transmission, or indicates which downlink radio resource the UE receives on the downlink transmission . [0004] The access technology adopted by LTE is Or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04L27/26
CPCH04L5/0091H04W72/1226H04L27/2601H04L5/003H04W72/042H04W72/1289H04W72/0453H04W28/06H04W72/1205
Inventor 戴谦
Owner ZTE CORP
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