US 8,553,591 B2Granted

Method and equipment for user'S uplink data scheduling

AssigneeChina Mobile Communications Corporation

InventorsDajie Jiang, Zhenping Hu, Chunfeng Cui

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Abstract

A user uplink data scheduling method and user equipment, which are applied to multiple-periodicity mode semi-persistent scheduling supporting Transmission Timing Interval (TTI) bundling in the second Downlink/Uplink (DL/UL) timing interval proportion configuration mode (Time Division Duplex (TDD) DL/UL subframe configuration 1) in a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) TDD system. The user uplink data scheduling method includes the steps of: acquiring an indication message transmitted from a base station for indicating user uplink data based on the multiple-periodicity mode semi-persistent scheduling; setting a periodicity offset of the multiple-periodicity mode semi-persistent scheduling; determining the periodicities of the multiple-periodicity mode semi-persistent scheduling of per two adjacent TTI bundles according to the set offset; scheduling user uplink new transmission packet data according to the determined periodicities of the multiple-periodicity mode semi-persistent scheduling. The problem that the new-transmission packet and the re-transmission packet of the same user of the multiple-periodicity semi-persistent scheduling conflict is solved, and signal overhead is reduced when TTI bundling supports the VoIP service and so on.

Claims3

Dependent claims

A method for scheduling uplink data of a user, applicable to semi-persistent scheduling in a multi-periodicity mode supporting TTI bundling for a second proportional configuration of uplink and downlink subframes in a 3GPP Long Term Evolution Time Division Duplex system, TDD DL/UL Subframe Configuration 1, comprising:

obtaining an indication message transmitted from a base station to indicate to schedule uplink data of the user based on the semi-persistent scheduling in the multi-periodicity mode;
setting a value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode;
determining periodicities of the semi-persistent scheduling in the multi-periodicity mode for every two adjacent TTI bundles according to the set value of periodicity offset;
and
scheduling uplink newly transmitted packet of the user according to the determined periodicities of the semi-persistent scheduling in the multi-periodicity mode,
wherein setting a value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode comprises:
setting the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode according to a system frame number of a system frame where a first TTI bundle allocated by the semi-persistent scheduling is located;
or
setting the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode according to a system frame number of a system frame where a Nth uplink subframe in a first TTI bundle allocated by the semi-persistent scheduling is located, wherein N is a natural number larger than 0 but not exceeding the number of uplink subframes comprised in a TTI bundle,
and wherein the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode is set as 10ms or −10ms when the system frame number is odd;
and
the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode is set as −10ms or 10ms when the system frame number is even.

9 more elements

A user equipment, applicable to semi-persistent scheduling in a multi-periodicity mode supporting TTI bundling for 3GPP Long Term Evolution TDD DL/UL Subframe Configuration 1, comprising:

an obtaining module configured to obtain an indication message transmitted from a base station to indicate to schedule uplink data of the user based on the semi-persistent scheduling in the multi-periodicity mode;
a periodicity offset setting module configured to set a value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode after the obtaining module obtains the indication message;
a periodicity setting module configured to determine periodicities of the semi-persistent scheduling in the multi-periodicity mode for every two adjacent TTI bundles according to the value of periodicity offset set by the periodicity offset setting module;
and
a scheduling module configured to schedule uplink newly transmitted packet of the user according to the periodicities of the semi-persistent scheduling in the multi-periodicity mode determined by the periodicity setting module,
wherein the periodicity offset setting module comprises:
a frame number extraction sub-module configured to extract a system frame number of a system frame where a first TTI bundle allocated by the semi-persistent scheduling is located or a system frame number of a system frame where a Nth subframe of a first TTI bundle allocated by the semi-persistent scheduling is located, wherein N is a natural number larger than 0 but not exceeding the number of uplink subframes comprised in a TTI bundle;
and
a setting sub-module configured to set the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode according to the system frame number extracted by the frame number extraction sub-module,
and wherein the setting sub-module sets the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode as 10ms or −10ms when the system frame number extracted by the frame number extraction sub-module is odd and sets the value of periodicity offset of the semi-persistent scheduling in the multi-periodicity mode as −10ms or 10ms when the system frame number extracted by the frame number extraction sub-module is even.

7 more elements

Dependencies are inferred from the claim text.