High speed downlink packages access user scheduling method and base station

Abstract

The invention provides a high speed downlink packages access user scheduling method and a base station. The high speed downlink packages access user scheduling method comprises the steps that: when a transmission time interval of a currently scheduled HS-PDSCH is a first scheduling time interval of a scheduled carrier pre-allocated to a scheduled cell, the base station normally schedules a user to be scheduled on the scheduled carrier of the scheduled cell according to a margin user priority rule; and when the transmission time interval of the currently scheduled HS-PDSCH is a non-first scheduling time interval, the base station carries out adaptability scheduling on the user to be scheduled on the scheduled carrier of the scheduled cell according to scheduling information of a detected adjacent region common frequency within an appointed time duration before current scheduling and a beam direction of the user to be scheduled on the scheduled carrier of the scheduled cell by adopting a center user priority rule. According to the technical scheme of the invention, the common frequency interference between adjacent cells is reduced, and various defects in the prior art are overcome.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a high-speed downlink packet access user scheduling method and a base station. Background technique [0002] At present, the High Speed ​​Downlink Packet Access (HSDPA) service of the Time Division-Synchronous Code Division Multiple Access (Time Division-Synchronous Code Division Multiple Access; TD-SCDMA for short) system basically uses the same frequency group network. HSDPA services carry actual user data through the High-Speed ​​Downlink Shared Channel (HS-DSCH for short). HS-DSCH is a transmission channel; at the physical layer, HS-DSCH should be mapped to high-speed Physical Downlink Shared Channel (High-Speed ​​Physical Downlink Shared Channel; HS-PDSCH for short). Although HS-PDSCH has beamforming, HS-PDSCH does not perform power control, and a user terminal (User Equipment; UE for short) generally only has one receiving antenna, and interference cancellation cannot be...

AI Technical Summary

Problems solved by technology

Another method is that the base station schedules users at the edge of the cell with a certain random probability. In this way, the scheduling of users on the same carrier frequency in adjacent cells is staggered to a certain extent to reduce co-channel interference. However, this The method will bring about an extreme increase in interference instability and increase the packet error rate

[0004] From the above analysis, it can be seen that while the existing technology reduces co-channel interference, it also has various deficiencies, and cannot solve the problem of co-channel interference well.

Images