Method for scheduling dispersion transmission user, data communication method and net element equipment

Abstract

The invention discloses a method for scheduling disperse transmission users, which includes: transmitting frequency proportionality information; obtaining the time resource and band resource that the disperse transmission users can occupy according to the mappings relationship from the time frequency proportionality information to the time frequency resources occupied by the disperse transmissionusers; allocating scheduling time to the specific disperse transmission users requiring scheduling in the time that the disperse transmission users can occupy; allocating scheduling band to the specific disperse transmission users requiring scheduling in the band resources that the disperse transmission users can occupy; and transmitting the physical layer scheduling control signaling for informing the scheduling time and the scheduling band. The technical scheme provided by the invention can allocate better resources to the users with less physical layer scheduling control signaling.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for scheduling distributed transmission users, a data communication method and network element equipment. Background technique [0002] In the 3rd Generation Partnership Project Long Term Evolution system (3rd Generation Partnership Project Long Term Evolution, 3GPP LTE), frequency selective scheduling and frequency diversity scheduling coexist. Data transmission of users using frequency selective scheduling is called centralized transmission, and data transmission of users using frequency diversity scheduling is called distributed transmission. A user who transmits data intensively is called a centralized transmission user, and the smallest time-frequency unit occupied by the concentrated transmission user is 1 resource block in the frequency domain and a subframe length in time. Wherein, the resource block is 12 consecutive subcarriers in the frequency domain, ...

AI Technical Summary

Problems solved by technology

Using the technical solution of prior art 1, there will be the following two situations: 1. In order to save physical layer scheduling control signaling, in the broadcast channel, the frequency domain ratio of the resource occupied by the distributed transmission user is notified to be 6 resource blocks (used for To ensure that the user with the largest demand for time-frequency resources can meet its resource needs through one scheduling), the scheduling overhead at this time is 10 physical layer scheduling control signaling and 60 time-frequency resource units, and the waste of data resources is serious; 2. In order to save Data resource overhead, in the broadcast channel, the frequency domain ratio of the resources occupied by the distributed transmission users is 2 resource blocks, and the users who need 6 resource blocks × 1ms time-frequency resources need to go through at least three scheduling to meet their resource requirements. When the scheduling overhead is 12 physical layer scheduling control signaling and 20 time-frequency resource units, the waste of physical layer scheduling control signaling is relatively serious; using the technical solution of the prior art 2, there will be the following two situations: 1. In order to Save physical layer scheduling control signaling. In the broadcast channel, the frequency domain ratio of resources occupied by distributed transmission users is notified to be 2 subbands and 10 resource blocks. The scheduling overhead at this time is 10 physical layer scheduling control signaling and 100 resource blocks. Time-frequency resource unit, the waste of data resources is relatively serious; 2. In order to save data resource overhead, in the broadcast channel, the frequency domain ratio of the resource occupied by the distributed transmission user is notified to be 1 subband, that is, 5 resource blocks, and 6 resources are required Users of block × 1ms time-frequency resources must go through at least two scheduling to meet their resource requirements. At this time, the scheduling overhead is 11 physical layer scheduling control signaling and 50 time-frequency resource units. The physical layer scheduling control signaling and data resources are wasted

[0008] 2. The existing technology only quasi-statically notifies the frequency domain ratio occupied by distributed transmission users, and the frequency domain ratio is valid in all subframes within the quasi-static notification period, so distributed transmission users need to monitor in all subframes The physical layer controls the channel to see if it is scheduled, which is not conducive to the energy saving of the user equipment

[0009] 3. When the number of distributed transmission users is small, due to the small number of distributed transmission users multiplexed in each subframe, it is not conducive to fully obtaining the frequency diversity gain brought by distributed transmission

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