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Time division scheduling method and time division scheduling device

A scheduling method and a technology for preset time periods, applied in the field of communication, can solve problems such as poor interference effect, and achieve the effect of ensuring user fairness differentiation and reducing interference.

Active Publication Date: 2014-11-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the time-division scheduling method provided by the prior art, the scheduling policy is only to judge each UE separately, and there is only one group of UEs for time-division scheduling, and the number of UEs for time-division scheduling cannot exceed 8, resulting in The scheduling method is too ideal, and the effect of reducing interference is not good

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  • Time division scheduling method and time division scheduling device
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  • Time division scheduling method and time division scheduling device

Examples

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Embodiment 1

[0034] In a CDMA (Code Division Multiple Access) system, uplink UEs are not completely orthogonal, and uplink UEs in a cell interfere with each other. To ensure communication quality, the uplink capacity of a cell is limited by inter-UE interference. To this end, HSUPA uses key technologies such as multi-code transmission, HARQ, and Node B-based fast scheduling to make the maximum uplink data throughput rate of a single cell reach 5.76Mbit / s.

[0035] However, in the HSUPA system, more 2ms TTI uplink UEs and higher uplink rates of UEs lead to increased interference in the cell, and increase the number and throughput of UEs in the cell. Therefore, this embodiment provides a time-division scheduling method, by which UEs are called to different times, thereby reducing interference between UEs and expanding cell uplink capacity. see figure 1 , the method flow provided by this embodiment is specifically as follows:

[0036] 101: Determine whether the UE meets the time division sc...

Embodiment 2

[0064] Embodiment two

[0065] This embodiment provides a time-division scheduling method. Combining the content of the first embodiment above, this embodiment takes the method of time-division scheduling for UEs in the HSUPA system as an example for specific description. Refer to figure 2 , the method flow provided by this embodiment is specifically as follows:

[0066] 201: Determine whether the UE meets the time division scheduling condition according to the parameters of each UE, and obtain a UE candidate set that meets the time division scheduling condition;

[0067] Specifically, this embodiment does not limit the method of determining whether the UE meets the time-division scheduling conditions, which may be based on at least one parameter among the UE's moving speed, TTI, data transmission amount within a preset time period, and chip offset Determine whether the UE meets the time-division scheduling condition. For example, if the mobile speed of the UE is less than ...

Embodiment 3

[0098] This embodiment provides a time-division scheduling device, see Figure 5 , the time-division scheduling device provided in this embodiment includes:

[0099] The first determination module 51 is configured to determine whether the UE meets the time-division scheduling condition according to the parameters of each user equipment UE, and obtain a UE candidate set that meets the time-division scheduling condition;

[0100] A selection module 52, configured to select one or more groups of UEs for time division scheduling in this period from the candidate set obtained by the first determination module 51;

[0101] An allocation module 53, configured to perform a time-division scheduled UE allocation process for the current period selected by the selection module 52;

[0102] The second determination module 54 is configured to determine the correspondence between the UE selected by the selection module 52 for time division scheduling in this period and the process allocated...

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Abstract

The invention discloses a time division scheduling method and a time division scheduling device and belongs to the field of communication. The method comprises: determining whether user equipment (UE) conforms to time division scheduling conditions according to parameters of each piece of UE, and obtaining a UE candidate set conforming to the time division scheduling conditions; selecting one or a plurality of groups of UE for time division scheduling in the period from the candidate set, allocating process for the UE for the time division scheduling in the period, and determining the corresponding relations between the UE for the time division scheduling in the period and the allocated process; and activating the process of allocation for the time division scheduling in the period according to the corresponding relations between the determined UE in the period and the allocated process. One or the plurality of groups of UE for the time division scheduling in the period is selected from the UE candidate set conforming to the time division scheduling conditions, the time division scheduling is performed under consideration of a whole neighborhood, and disturbance in the neighborhood is effectively reduced. Due to the fact that the UE for the time division scheduling can be of the plurality of groups, the number of the UE for the time division scheduling can be increased, and the UE for the time division scheduling can obtain interference offset and characteristic gain.

Description

technical field [0001] The present invention relates to the communication field, in particular to a time-division scheduling method and device. Background technique [0002] As various services have higher and higher requirements for delay, HSUPA (High Speed ​​Uplink Packet Access) adopts multi-code transmission, HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat request) , TTI (Transmission Time Interval, transmission time interval) is 2ms wireless short frame and other technologies, making the maximum uplink data throughput rate of a single cell reach 5.76Mbit / s, further enhancing WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access ) uplink data service bearing capacity and spectrum utilization. However, in the HSUPA system, although more 2ms TTI uplink users and higher uplink rate of users can increase the number of users and throughput in the cell, it will also lead to increased interference in the cell. [0003] In this re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W72/12H04W72/54
Inventor 施荣
Owner HUAWEI TECH CO LTD