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Method and equipment for allocating physical hybrid automatic repeat request (ARQ) indicator channel (PHICH), and user equipment (UE)

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 the problems of lower transmission quality, misjudgment of data transmission, and less cyclic shift value, etc., and achieve expansion adjustment range effect

Active Publication Date: 2013-02-13
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

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 less at present, and a maximum of 8 PHICHs can be determined. Once the number of uplink multiplexed UEs increases, the configuration requirements of the PHICH cannot be met. It may lead to PHICH allocation conflicts, and two UEs may determine the same PHICH channel, resulting in misjudgment of uplink data transmission and reducing transmission quality

Method used

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  • Method and equipment for allocating physical hybrid automatic repeat request (ARQ) indicator channel (PHICH), and user equipment (UE)
  • Method and equipment for allocating physical hybrid automatic repeat request (ARQ) indicator channel (PHICH), and user equipment (UE)
  • Method and equipment for allocating physical hybrid automatic repeat request (ARQ) indicator channel (PHICH), and user equipment (UE)

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to 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. According to the extended parameters, the demodulation reference signal cyclic shift value indicated in the PDCCH (Physical Downlink Control Channel, physical downlink control channel), and the minimum label of the PRB (Physical Resource Block, physical resource block) occu...

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Abstract

The embodiment of the invention discloses a method and equipment for allocating a physical hybrid automatic repeat request (ARQ) indicator channel (PHICH), and user equipment (UE). The method for allocating the PHICH comprises the following steps of: determining a PHICH index number which corresponds to an uplink data transmission block according to extended parameters, a demodulation reference signal cyclic shifting value which is indicated in a physical downlink control channel (PDCCH) and a minimum label index value of a physical resource block (PRB) which is occupied by the uplink data transmission block, wherein the extended parameters comprise parameters special for a cell and parameters special for the UE; and allocating the PHICH to the uplink data transmission block according to the PHICH index number. By adoption of the method and the equipment for allocating the PHICH and the UE provided by the embodiment of the invention, an adjustment range in which a base station allocates the PHICH to the UE is expanded according to the extended parameters and the demodulation reference signal cyclic shifting value.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method, device and user equipment for allocating physical hybrid retransmission indicator channels. Background technique [0002] In LTE (Long Term Evolution, long-term evolution) technology, data transmission / reception supports HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) technology, and the data receiver feeds back ACK (acknowledgment, positive response) to the data sender / NACK (Negative acknowledgment) information, so that the data sender confirms whether the data is correctly received by the data receiver. [0003] Usually, the eNodeB (base station) will carry HARQ ACK or NACK information on the PHICH (Physical Hybrid ARQ Indicator Channel, Physical Hybrid ARQ Indicator Channel) allocated to the UE (User Equipment, user equipment) to indicate whether the eNodeB is correct After receiving the uplink data transmitted by the UE...

Claims

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Application Information

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