Method and device for processing information in uplink shared channel of LTE-A system
A processing method and a technology of physical uplink sharing, which are applied in the field of information processing in the physical uplink shared channel, can solve the problems of increasing the complexity of system implementation and processing delay, and achieve the purpose of shortening time overhead, reducing complexity, and saving hardware resources. Effect
Active Publication Date: 2019-09-13
INST OF AUTOMATION CHINESE ACAD OF SCI
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Therefore, for the PUSCH channel that only schedules uplink control information, the receiving end performs MIMO detection first and then performs soft bit combination processing, which will not bring additional performance gain, but will increase the implementation complexity and processing delay of the system.
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[0031] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
[0032] The processing method of the information in the physical uplink shared channel of the present invention comprises the following steps:
[0033] Step 1, performing OFDM demodulation, resource mapping, and PUSCH channel estimation on the received information;
[0034] Step 2, judge according to the type of information carried on the PUSCH channel, if it contains service data, then perform step 3; if there is only control information, then perform step 4;
[0035] Step 3: Perform symbol-level processing and bit-level processing according to the general processing flow; the general processing flow is the processing flow currently used by L...
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The present invention belongs to the mobile communication field and discloses a method and device for processing information in the uplink shared channel of an LTE-A (long-term Evolution Advanced) system. According to the method and device, information is operated separately according to the types of the information borne in the shared channel; if only service data exist in the shared channel, or service data and control information exist in the shared channel, the data or information is processed according to a general processing flow; If only control information exists in the shared channel, the information is processed according to a merging processing flow. According to the merging processing flow, equivalent channel impulse response is calculated, and therefore, algorithm complexity of MIMO detection, rate de-matching and merging can be decreased, the data processing amount of modules such as a IDFT module, a demodulation module and a descrambling module can be reduced, and the operation of modules such as a layer de-mapping module and a soft bit layer merging module can be omitted. With the method and device of the invention adopted, the implementation complexity of the system can be effectively reduced, hardware and delay costs can be decreased, calculation power consumption can be reduced, and the performance of the entire system can be improved.
Description
technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and device for processing information in a physical uplink shared channel based on an LTE-A (Long Term Evolution Advanced) system. Background technique [0002] When only uplink control information is scheduled on the PUSCH (Physical Uplink Shared Channel, the physical uplink shared channel), the control information bits are transmitted in duplicate on each data stream, and the information bits transmitted by each data stream are exactly the same . After the base station receives it, the receiving end first needs to perform channel estimation on the received information according to the local demodulation reference information of different data streams, and then perform MIMO (Multiple-Input Multiple-Output, Multiple-input multiple-output) detection to obtain soft symbols of different data streams, and after de-channel interleaving, it is necessary to combine ...
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IPC IPC(8): H04L27/26H04L25/02
Inventor 郭晨王戈王晓琴林啸
Owner INST OF AUTOMATION CHINESE ACAD OF SCI