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Method, device and system for indicating resources

A technology that indicates resources and resource locations, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as affecting terminal performance and waste of CCE resources.

Active Publication Date: 2009-12-16
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The present invention provides a method, device and system for indicating resources to solve the problems of wasting CCE resources and affecting terminal performance existing in existing solutions

Method used

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  • Method, device and system for indicating resources
  • Method, device and system for indicating resources
  • Method, device and system for indicating resources

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Embodiment 1. In this embodiment, a CCE number is used to indicate a resource location.

[0087] First, the base station indicates the resource location through the CCE number, please refer to figure 2 , there are N CCEs in total, which are CCE1, CCE2, ..., CCEN, and the number 1 of CCE1 indicates two physical resource blocks (PRB, physical resource block) pointed by the arrow, where PRB is used to store data, and CCE2 The number 2 of CCE2 indicates the two PRBs indicated by the arrows of CCE2, and the number N of CCEN indicates the two PRBs indicated by the arrows of CCEN.

[0088] In this embodiment, each CCE indicates two PRBs, which is only one solution, and of course other solutions can also be included, for example, each CCE indicates one PRB or more PRBs, or each CCE can indicate different number of PRBs, for example, CCE1 indicates 1 PRB, CCE2 indicates 3 PRBs, CCE3 indicates 3 PRBs, and so on.

[0089] The CCE number is used to indicate the resource location...

Embodiment 2

[0109] Embodiment 2 is different from Embodiment 1 in that Embodiment 2 numbers PRB resource blocks to indicate resource positions, and there is a mapping relationship between CCEs of PDCCHs and PRBs.

[0110] Please refer to Figure 5 , shows that the PRB block number indicates the resource location. Number the resource group of the resource blocks to be sent in advance, and assign a PRB number to each group of PRBs, such as Figure 5 PRB group No. 1, PRB group No. 2, and PRB group No. 3.

[0111] The PRB number is used to indicate the resource location, and the comparison between the number of control information bits of the compressed DCI and the uncompressed DCI is shown in Table 7.

[0112] Table 7

[0113] control information field

Uncompressed DCI bits

number

Compressed DCI bits

Distributed transmission flag

1

0

Resource allocation header

1

0

RB allocation

25

3 or 4

...

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Abstract

The invention discloses a method, a device and a system for indicating resources. The method comprises the following steps: user equipment (UE) monitors a compressed physical downlink control channel (PDCCH) obtained by compressed corresponding downlink control information (DCI); the UE resolves the DCI of the PDCCH to obtain a resource number; and the UE utilizes the preset corresponding relation between resource numbers and resource positions to confirm the corresponding resource position of the obtained resource number. The device comprises a distribution unit, a first notification unit and a channel-compressing unit for a substation and comprises a monitoring unit, a resolving unit and a confirmation unit for a terminal. The invention saves command control equipment (CCE) resources and avoids causing influence on other equipment in a section.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, device and system for indicating resources. Background technique [0002] The long-term evolution technology (LTE, Long Term Evolution) takes Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) as the core. The basic idea of ​​OFDM is to disperse high-speed data streams to multiple orthogonal subcarriers for transmission, thereby The symbol rate on the sub-carrier is greatly reduced, and the symbol duration is greatly lengthened, so it has strong resistance to delay extension and reduces the impact of inter-symbol interference. [0003] The physical downlink control channel PDCCH (Packet Dedicated Control Channel) is composed of control channel elements (CCE, control channel elements), and the downlink control information (DCI, downlink control information) is carried on the CCE. In the existing scheme, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04W72/14
Inventor 杨晓东索士强丁昱
Owner DATANG MOBILE COMM EQUIP CO LTD
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