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Combined feedback method and device of uplink control information

A technology to control information and to be fed back, applied in the field of communication, can solve problems such as no clear scheme, no proposed implementation scheme, coding and modulation, etc.

Active Publication Date: 2014-09-10
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] However, so far, no specific implementation scheme has been proposed for the simultaneous feedback of these two types of information, that is, how to independently encode and modulate ACK / NACK information and CSI information, and how to map the obtained symbols to physical resources has not yet been clarified. plan

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  • Combined feedback method and device of uplink control information

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Embodiment Construction

[0045] In the embodiment of the present invention, a specific implementation scheme for joint feedback of ACK / NACK information and periodic CSI (hereinafter referred to as CSI) is given. The solution is: when ACK / NACK information and CSI are simultaneously fed back in an uplink subframe, the ACK / NACK information and CSI are interleaved in blocks, and then the interleaved data is mapped to a PUCCH in the uplink subframe The transmission is performed in the corresponding physical resource, wherein, in each time slot occupied by the physical resource corresponding to the PUCCH, the mapped ACK / NACK information is continuously arranged, and the mapped CSI is continuously arranged.

[0046] In practical applications, the number of physical resources corresponding to a PUCCH can be adjusted according to specific application scenarios. For example, the physical resources corresponding to a PUCCH can be a PRB pair (Physical Resource Block, physical resource block pair) occupying two tim...

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Abstract

The invention relates to the communication field and discloses a combined feedback method and device of uplink control information. The method comprises the following steps of: obtaining ACK(Acknowledgement) / NACK (Negative Acknowledgement) information and period CSI (Channel State Information) to be fed back and determining uplink sub-frames for bearing the ACK / NACK information and the period CSI; an performing block interleaving treatment on the ACK / NACK information and period CSI, and mapping interleaved data to a physical resource corresponding to a PUCCH (Physical Uplink Control Channel) in the uplink sub-frames and then feeding back the data to a network side, wherein in each time slot occupied by the physical resource corresponding to the PUCCH, the mapped ACK / NACK information is continuously arrayed and the mapped CIS is continuously arrayed. Therefore, according to the method and the device provided by the invention, the combined feedback of the ACK / NACK information and the CIS is realized and the frequency diversity effect in the process of sending the data is increased, so that the system performance is improved in the process of transmitting the ACK / NACK information and the CIS.

Description

technical field [0001] The present invention relates to the communication field, in particular to a joint feedback method and device for uplink control information. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) system and the original wireless communication system, there is usually only one carrier in a cell, for example, refer to figure 1 As shown, the maximum bandwidth in the LTE system is 20MHz. [0003] In the LTE-A (LTE Advanced, the long-term evolution of development) system, the peak rate of the system is greatly improved compared with LTE, and it is required to reach 1 Gbps in the downlink and 500 Mbps in the uplink. If only one carrier with a maximum bandwidth of 20MHz is used, the peak rate requirement cannot be met. Therefore, the LTE-A system needs to expand the bandwidth that the terminal can use, and thus introduces the CA (Carrier Aggregation, Carrier Aggregation) technology, which aggregates multiple continuous or disco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/06H04L1/16
Inventor 司倩倩林亚男沈祖康高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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