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Method and equipment for scheduling feedback information resources

A technology for resource scheduling and feedback information, applied in signaling allocation, wireless communication, transmission path separation device, etc., can solve problems such as PHICH resource conflict, achieve the effect of simple implementation, optimized system performance, and small changes

Active Publication Date: 2011-06-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0034] The problem of PHICH resource conflict is mainly considered in the case of UL SPS transmission. Since the CS (Cyclic Shift, cyclic shift) of the DMRS defined in the current UL SPS transmission in LTE is 0, refer to Section 9.2 in 3GPP TS 36.213 As described in , PHICH resource conflicts cannot be avoided through DMRSCS scheduling
If the existing definition in LTE is used in LTE-A, when one DL CC schedules UL SPSs of two UEs, if the two UL SPSs are located in different UL CCs, and their I PRB_RA lowest_index Both are 0, then PHICH resources will conflict

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  • Method and equipment for scheduling feedback information resources
  • Method and equipment for scheduling feedback information resources
  • Method and equipment for scheduling feedback information resources

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Embodiment Construction

[0062] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0063] In order to facilitate the understanding of the present invention, firstly a brief introduction is made to the related background in the current LTE-A.

[0064] The current conclusions about PDCCH control include: PDCCH needs to support cross-carrier scheduling; cross-carrier scheduling is realized by adding a 3-bit CIF (Carrier Indicator Field, carrier indicator field) information field in DCI; whether there is a CIF information field, this is a Based on UE, it is also based on component carrier configuration; DCI without CIF inf...

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Abstract

The invention provides a method for scheduling feedback information resources. The method comprises the following steps: after receiving UL SPS (uplink semi-persistent scheduling) information in the current DL CC (downlink component carrier) sent by a base station (BS), a terminal transmits a UL SPS PUSCH (physical uplink shared channel) on a UL Primary CC according to transmission attributes indicated in the UL SPS scheduling information; if the carrier indicator field (CIF) of the current DL CC is available, a DMRS (demodulation reference signal) is determined according to a CS (cyclic shift) value of the DMRS indicated by the information field (INF) of the CIF or a DMRS CS value indicated by a DMRS CS INF; and the terminal monitors a corresponding PHICH (physical hybrid-automatic repeat request (ARQ) indicator channel) thereof on a DL ACK (acknowledgement) / NAK (negative acknowledgment) feedback sub-frame corresponding to the UL SPS PUSCH, and PHICH resources are calculated according to a resource indication INF in the UL SPS information and the corresponding DMRS CS value. The technical scheme provided by the invention has the advantages that a PHICH resource mapping method in the existing LTE (long term evolution) R8 version is not changed, reliability of a UL SPS PDCCH (physical downlink control channel) is not affected, and PHICH resource conflict can be effectively avoided in the case of UL SPS transmission.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular, the present invention relates to a resource scheduling method and equipment for feedback information. Background technique [0002] Mobile and broadband have become the development direction of modern communication technology. 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) is committed to the evolution of 3G systems. The goal is to develop 3GPP wireless access technology towards high data rate, low delay and optimized packet data Application direction evolution. In 3GPP LTE (Long Term Evolution, long-term evolution) and LTE-A (LongTerm Evolution-Advanced, long-term evolution advanced) systems, the transmission of feedback information ACK / NACK for PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) is through PHICH (Physical hybrid-ARQ Indicator Channel, physical hybrid automatic retransmission request indication channe...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04W72/12H04W72/04
CPCH04W72/0446H04L5/0094H04L5/0042H04L5/001H04L5/0053
Inventor 赵锐沈祖康潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD
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