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PUSCH (physical uplink shared channel) transmission method and mobile terminal in dynamic TDD (time division duplex) system for supporting carrier aggregation

A transmission method and a technology of carrier aggregation, applied in multi-frequency code systems, using return channels for error prevention/detection, etc., can solve problems such as no solution, inability to simply multiplex transmission methods, etc.

Inactive Publication Date: 2013-02-06
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology

[0026] In this scenario, if PUSCH transmission is implemented through non-cross-carrier scheduling, the PUSCH transmission method is determined according to the high-layer signaling or physical layer signaling indication in the serving cell where PUSCH is located; and if PUSCH transmission is through cross-carrier scheduling Realized, the PUSCH transmission method cannot simply reuse the existing pure carrier aggregation system cross-carrier scheduling PUSCH transmission method, and as far as the current research results are concerned, there is no solution in this regard

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  • PUSCH (physical uplink shared channel) transmission method and mobile terminal in dynamic TDD (time division duplex) system for supporting carrier aggregation
  • PUSCH (physical uplink shared channel) transmission method and mobile terminal in dynamic TDD (time division duplex) system for supporting carrier aggregation
  • PUSCH (physical uplink shared channel) transmission method and mobile terminal in dynamic TDD (time division duplex) system for supporting carrier aggregation

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[0104] In order to make the purpose, technical means and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0105] The present invention is mainly aimed at the situation that the TDD uplink and downlink configurations of one or more serving cells of the UE can be dynamically changed in a TDD system using both CA and dynamic TDD.

[0106] If it is non-cross-carrier scheduling, for a serving cell working in a fixed TDD configuration, the PUSCH transmission method can be determined according to the TDD uplink and downlink configuration of the serving cell; for a serving cell working in a dynamic TDD mode, the PUSCH transmission method can be determined according to the The physical layer or the signaling indication of the upper layer is determined. Therefore, the present application will not describe the PUSCH transmission method in non-cross-carrier scheduling.

[0107...

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Abstract

The invention relates to a PUSCH (physical uplink shared channel) transmission method and a mobile terminal in a dynamic TDD (time division duplex) system for supporting carrier aggregation. The invention discloses the PUSCH transmission method, which comprises the following steps: in the system for supporting the carrier aggregation, if one or a plurality of serving cells work in a dynamic TDD mode, when in cross-carrier scheduling, eNB (effective noise bandwidth) can determine a synchronous HARQ (hybrid automatic retransmission request) timing relationship of a PUSCH to be scheduled through the working modes of a scheduling serving cell and a scheduled serving cell as well as the TDD uplink-downlink configuration of the scheduling serving cell and the scheduled serving cell. UE (user equipment) can determine a synchronous HARQ timing relationship of the PUSCH through the working modes of the scheduling serving cell and the scheduled serving cell as well as the TDD uplink-downlink configuration of the scheduling serving cell and the scheduled serving cell, detects an uplink scheduling instruction and finally sends the PUSCH according to the scheduling instruction.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, and more specifically relates to the time division multiplexing system supporting carrier aggregation (CA, Carrier Aggregation), one or more serving cells simultaneously work in dynamic TDD (Dynamic Time Division Duplexing) mode is , a physical uplink shared channel (PUSCH, Physical Uplink Shared Channel) transmission method and a mobile terminal. Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) technology supports frequency division duplexing (FDD, Frequency Division Duplexing) and time division duplexing (TDD, Time Division Duplexing) two duplexing modes. figure 1 It is a schematic diagram of the frame structure of the TDD system of LTE. The length of each wireless frame is 10 milliseconds (ms), and it is divided into two half-frames with a length of 5ms. Each half-frame contains 8 time slots with a length of 0.5ms and 3 special domains. The...

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Application Information

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IPC IPC(8): H04L1/18H04L27/26
Inventor 张世昌李迎阳孙程君
Owner BEIJING SAMSUNG TELECOM R&D CENT
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