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Scheduling method and device in TD-SCDMA baseband processing

A TD-SCDMA, scheduling control technology, applied in radio transmission systems, electrical components, transmission systems, etc., to achieve the effects of low-cost implementation, accurate scheduling, and reduced computational complexity

Inactive Publication Date: 2009-04-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to simplify the hardware implementation complexity and cost of TD-SCDMA baseband processing multi-carrier and multi-slot scheduling control, and propose a scheduling control method and device based on fixed time points

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  • Scheduling method and device in TD-SCDMA baseband processing
  • Scheduling method and device in TD-SCDMA baseband processing
  • Scheduling method and device in TD-SCDMA baseband processing

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] In the present invention, assuming that one uplink time slot of each carrier includes M beats, that is, there are M starting time points, then X carrier Y uplink time slots correspond to X*Y*M time points. The method and device of the present invention are used as an example to describe the scheduling control of TD-SCDMA baseband processing operations with 6 carriers and 3 time slots.

[0031] Firstly, according to the rule that the length of processing time and the use of operation processing resources do not conflict, each algorithm processing module of each uplink time slot is divided into 5 pipeline beats.

[0032] Then, according to the processing time required for the maximum amount of calculation as a reference, determine the starting time point of each beat, and each beat corresponds to a starting time point, then a tot...

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Abstract

The present invention discloses a scheduling control method and device in the TD-SCDMA base-band processing According to the method, related operation procedure is divided into a plurality of streamline beats and a starting time point is determined, 'information elements' are scheduled and controlled by using the starting time point as the core code, the operation time count values and the starting time points in the scheduling control information elements are compared in order, if the comparing result is equal, corresponding scheduling control signals are generated according to the carrier wave number, the time slot time and the beat number in the information element, and then an execution of a corresponding arithmetic operation module is started. The device comprises a ROM storage, a ROM controller, a time point counter, a time point comparator and a scheduling control signal decoder. Based on the scheduling control method with a fixed time point, accurate scheduling can be achievedand software and hardware are easy to realize. The device can complete complicated scheduling tasks which need high-performance CPU and DSP by only utilizing a few of hardware circuits.

Description

technical field [0001] The invention belongs to the technical field of wireless communication baseband processing, in particular to a method and device for multi-carrier and multi-slot operation scheduling control implemented based on FPGA or ASIC in wireless communication baseband processing. Background technique [0002] Baseband processing is defined when the processing from digital intermediate frequency to transmission channel is completed, including channel uplink and downlink processing and baseband measurement. Specifically, after the downlink receives data from the MAC layer, according to the configured channel attributes, the encoding, modulation, spread spectrum, and scrambling of the transmission channel are performed, and synchronous power control information is added to form a burst, and finally the IQ baseband digital signal is output. After the downlink beamforming is performed, it is processed by the transmitter (TX); in the uplink direction, after receiving...

Claims

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Application Information

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IPC IPC(8): H04B1/40H04B7/216
Inventor 赵兴山
Owner ZTE CORP
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