Method and device for realizing resource allocation

A resource allocation and resource technology, applied in wireless communication, electrical components, etc., can solve the problems of high resource allocation overhead and large number of bits in resource allocation domains

Inactive Publication Date: 2016-11-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For MTC UEs that support a small bandwidth, the resources allocated to the UE by the eNB can only be limited to a narrowband with a bandwidth smaller than the system bandwidth. If the existing resource allocation method is used, the number of bits occupied by the resource allocation field in DCI More, the overhead of resource allocation is relatively large, which is unacceptable for UE under coverage enhancement

Method used

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  • Method and device for realizing resource allocation
  • Method and device for realizing resource allocation
  • Method and device for realizing resource allocation

Examples

Experimental program
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no. 4 example

[0194] In the fourth embodiment, the resources allocated by the eNB are similar to those in Embodiments 1 to 3, except that the indication methods are different. The preset information of the downlink control channel of the partial information scheduling UE indicates that the downlink control channel may be a PDCCH, may also be an EPDCCH, or may be a newly defined downlink control channel carrying downlink control information. The preset information may be the aggregation level or the number of repetitions of the downlink control channel scheduling the PUSCH / PDSCH, or the resource or transmission mode occupied by the control channel.

[0195] For example, the aggregation level and the partial information representing the resource information allocated to the UE have the corresponding relationship shown in Table 2:

[0196] aggregation level

allocated resources

4

1 RBG

8

2 RBGs

16

3 RBGs

[0197] Table 2

[0198] Which 1 / 2 / 3 R...

no. 5 example

[0199] In the fifth embodiment, the resources allocated to the UE by the eNB are similar to those in the first to third embodiments, except for the method of configuring the information representing the resources allocated to the UE. The information indicating the resource allocated to the UE is completely represented by the preset information of the PDCCH for scheduling the UE, such as the aggregation level or the number of repetitions or the resource occupied by the control channel or the transmission mode.

[0200] For example, there is a preset correspondence between the narrowband that UE receives PDSCH and the narrowband of PDCCH that schedules UE to receive PDSCH. For example, if PDCCH occupies a certain narrowband #5, then the narrowband occupied by PDSCH is (the narrowband where PDCCH is located + 2) mod The total number of narrowbands, where "mod" is a modulo calculation, assuming that the total number of narrowbands is 16, then the narrowband where the PDSCH is locat...

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Abstract

The invention discloses a method and a device for realizing the resource allocation. The method comprises the steps of indicating and allocating resources to UE (user equipment) by a base station, wherein the resources allocated to the UE include one or more resource block groups (RBG), and / or one or more sub-RBG, and the frequency domain span of the resources allocated to the UE is smaller than the number of physical resource blocks (PRB) corresponding to the bandwidth of the system. According to the technical scheme of the invention, the frequency domain span of the resources allocated to the UE by the base station is smaller than the number of physical resource blocks (PRB) corresponding to the bandwidth of the system. Therefore, the number of bits occupied by resource allocation is reduced when the base station sends the information that indicates the resources allocated to the UE.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for realizing resource allocation. Background technique [0002] Machine Type Communication (MTC, Machine Type Communication) User Terminal (UE, User Equipment), also known as Machine to Machine (M2M, Machine to Machine) UE, is currently the main application form of the Internet of Things. [0003] In recent years, more and more mobile operators choose LTE / LTE-A as the Evolution direction of wideband wireless communication system. MTC multi-type data services based on LTE / LTE-A will also be more attractive. [0004] The MTC device is generally a low-cost device, and has features such as a relatively small supported radio frequency (RF, Radio Frequency) bandwidth and a single receiving antenna, and its sending and receiving bandwidth is generally 1.4 megahertz (MHz). There is a type of MTC equipment, such as electric meters, which may be placed in metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/04
Inventor 张雯夏树强戴博石靖刘锟陈宪明方惠英
Owner ZTE CORP
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