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A physical hybrid retransmission indication channel allocation method, device and user equipment

A technology of retransmission indication and physical mixing, which is applied in the direction of transmission path sub-channel allocation, signaling allocation, transmission system, etc., can solve problems such as lowering transmission quality, misjudgment of data transmission, PHICH allocation conflicts, etc., and achieves the goal of expanding the adjustment range Effect

Active Publication Date: 2016-01-06
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] However, the cyclic shift value of the DMRS (Demodulation Reference Signal, demodulation reference signal) used to determine the PHICH is relatively small at present, and a maximum of 8 PHICHs can be determined. Once the number of uplink multiplexed UEs increases, it cannot meet the configuration requirements of the PHICH, which may cause PHICH allocation conflicts, two UEs will determine the same PHICH channel, resulting in misjudgment of uplink data transmission and lower transmission quality

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  • A physical hybrid retransmission indication channel allocation method, device and user equipment
  • A physical hybrid retransmission indication channel allocation method, device and user equipment
  • A physical hybrid retransmission indication channel allocation method, device and user equipment

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Embodiment Construction

[0028] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] Such as figure 1 As shown, the embodiment of the present invention provides a physical hybrid retransmission indication channel allocation method, including:

[0030] 11. Determine the uplink based on the extended parameters, the cyclic shift value of the demodulation reference signal indicated in the PDCCH (Physical Downlink Control Channel) and the minimum index value of the PRB (Physical Resource Block) occupied by the uplink data t...

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Abstract

Embodiments of the present invention disclose a method, device, and user equipment for allocating a physical hybrid retransmission indicator channel, wherein the method for allocating a physical hybrid retransmission indicator channel includes: according to an extension parameter, a demodulation indicated in a physical downlink control channel PDCCH The reference signal cyclic shift value and the minimum index index value of the PRB of the physical resource block occupied by the uplink data transmission block are used to determine the PHICH index number corresponding to the uplink data transmission block. The extended parameters include cell-specific parameters and user equipment-specific parameters. parameter; allocate a PHICH to the uplink data transport block according to the PHICH index number. The physical hybrid retransmission indication channel allocation method, device and user equipment according to the embodiments of the present invention expand the adjustment range when the base station allocates the PHICH channel to the UE by extending the parameters and the cyclic shift value of the demodulation reference signal.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method, equipment and user equipment for assigning a physical hybrid retransmission indicator channel. Background technique [0002] In LTE (LongTerm Evolution, Long Term Evolution) technology, data transmission / reception supports HARQ (Hybrid Automatic Repeat Request) technology. The data receiver sends back ACK (acknowledgement) / NACK (Negative acknowledgement, Negative response) information to enable the data sender to confirm whether the data is correctly received by the data receiver. [0003] Generally, the eNodeB (base station) will carry HARQ ACK or NACK information on the PHICH (Physical Hybrid ARQ Indicator Channel) allocated for the UE (User Equipment) to indicate whether the eNodeB correctly receives the UE transmission. Correspondingly, the UE needs to be able to determine the PHICH and obtain the ACK or NACK information for uplink data transmission thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04L1/16H04L1/18
CPCH04L1/1887H04L1/1893H04L1/1812H04L1/1861H04L1/1896H04L1/1864H04W72/21H04L5/0053
Inventor 倪威张佳胤任晓涛
Owner HUAWEI TECH CO LTD
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