A high-speed packet access carrier dedicated physical channel scheduling method and device

Abstract

The invention provides a scheduling method and device for a DPCH (dedicated physical channel) of HSPA (high speed packet access) carrier waves. The method includes: according to the attributes of the HSPA carrier waves and HSPA uplink and downlink user numbers, judging whether a DPCH is needed to be added to a time slot 0TS0 of the HSPA carrier waves; and when the DPCH is needed to be added, configuring the frame division multiplexing DPCH according to the code-channel power of the TS0. Through the attributes of the HSPA carrier waves of a TD-SCDMA, the DPCH scheduling method and device for the HSPA carrier waves configure dynamically the DPCH on the TS0 of the HSPA carrier waves and expand HSPA carrier-frequency downlink DPCH channel resources so that capacity of the HSPA carrier waves is improved, code-power balance of an HSPA carrier-frequency uplink and downlink accompanying DPCH is realized, capability for overall access user number of the HSPA carrier waves is improved and frequency-spectrum resource utilization maximization is realized.

Description

technical field [0001] The present invention relates to time division-synchronous code division multiple access (TD-SCDMA) wireless communication technology, in particular to a high speed packet access (High Speed ​​Packet Access, HSPA) carrier dedicated physical channel (Dedicated Physical Channel, DPCH) scheduling method and device. Background technique [0002] TD-SCDMA adopts TDD duplex mode, and can better support asymmetric services by adjusting the ratio of uplink and downlink time slots; among them, the subframe structure of TD-SCDMA includes uplink pilot time slot (UpPTS), guard interval (GP), downlink pilot time slot (DwPTS) and seven business time slots from time slot 0 to time slot 6 (TS0~TS6), TS0 is the downlink broadcast time slot for publishing system broadcast, and TS1~TS6 are common services Time slots can be configured with different ratios of uplink and downlink time slots according to the needs of uplink and downlink data transmission. For example, the r...

AI Technical Summary

Problems solved by technology

Among them, compared with the HSDPA carrier, the HSUPA carrier has newly added channels such as E-HICH, E-AGCH, FPACH, ERUCCH, and EPUCH; wherein, the E-HICH, E-AGCH, FPACH, and ERUCCH are for implementing HSUPA service calls , a newly added channel for public overhead, and the E-HICH, E-AGCH, and FPACH are common overhead for the downlink, therefore, the common overhead for the downlink uses four more code channel resources compared to the uplink, which can be used for The downlink resources used by users are correspondingly reduced, resulting in the unbalanced uplink and downlink resources of HSPA carriers, and the system capacity is limited by downlink resources

[0004] Furthermore, with the rapid increase of wireless data services, in the areas where users and services are busy, the capacity of HSPA carriers in the TD-SCDMA network has become a bottleneck, which directly affects user access and service establishment.

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