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Methods and devices for rank check and rank mask as well as communication system

A verification method and a verification device technology

Active Publication Date: 2013-10-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the inventors of the present invention found in the process of implementing the present invention that the codebook set of CQI / PMI is determined by Rank, if Rank is wrong, even if the CRC check of CQI / PMI succeeds, the CQI / PMI at this time is also invalid , cannot be adopted by the base station
Therefore, in the prior art, the impact of Rank is not considered when determining whether to adopt the received CQI / PMI

Method used

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  • Methods and devices for rank check and rank mask as well as communication system
  • Methods and devices for rank check and rank mask as well as communication system
  • Methods and devices for rank check and rank mask as well as communication system

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Embodiment Construction

[0038] The embodiment of the present invention provides a Rank checking mechanism, so that it can be known whether the Rank is received correctly without adding additional signaling overhead.

[0039] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail:

[0040] Such as figure 1 As shown, it is a schematic flowchart of an embodiment of the rank checking method of the present invention. Include the following steps:

[0041] Step 101, receiving the CRC code scrambled with Rank.

[0042] During the process of encoding the CRC code, the terminal scrambles the Rank on the CRC code. If there is CQI / PMI in the PUSCH, the Rank is scrambled on the CRC code of the CQI / PMI; if there is no CQI / PMI in the PUSCH, the Rank is scrambled on the CRC code of the data.

[0043] Step 102, use the received Rank to descramble the CRC code.

[0044] Those skilled in the art can understand that the received...

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Abstract

The embodiment of the invention discloses a method for rank check. The method comprises the following steps: receiving a cyclic redundancy check (CRC) code scrambled with a Rank; descrambling the CRC code by the received Rank; checking the CRC code obtained after descrambling; and judging whether the received Rank is correctly received or not according to a checking result of the CRC code. The embodiment of the invention also discloses a device for rank check, a method and a device for rank mask as well as a communication system. The methods, the devices and the communication system can provide a check mechanism for the Rank on the premise of no extra signaling cost increase, thereby improving the reliability for controlling the signaling receiving.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a rank masking and verification method, device and communication system. Background technique [0002] In recent years, the third-generation mobile communication system has gradually been commercialized worldwide. In order to maintain the competitiveness of the third-generation mobile communication system in the next 10 years and improve its performance and functions in an all-round way, 3GPP officially started the Long Term Evolution of the third-generation mobile communication (hereinafter referred to as: LTE) system standardization work. [0003] LTE physical layer technical specification involves uplink control signaling, uplink reference signal, downlink control signaling, downlink reference signal, channel coding, rate matching and many other aspects. Wherein, the uplink control signaling includes: ACK (ACKnowledge Character, acknowledgment character) / NACK (Negative...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/09
Inventor 唐臻飞陈实
Owner HUAWEI TECH CO LTD