CN106162908B

CN106162908B - Method and device for transmitting scheduling request

Info

Publication number: CN106162908B
Application number: CN201510165658.2A
Authority: CN
Inventors: 陈宪明; 戴博; 夏树强; 鲁照华; 刘锟; 石靖; 张雯; 方惠英
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-04-09
Filing date: 2015-04-09
Publication date: 2021-04-06
Anticipated expiration: 2035-04-09
Also published as: WO2016161791A1; CN106162908A

Abstract

The invention discloses a method and a device for transmitting Scheduling Request (SR), comprising the following steps: the terminal acquires a first transmission parameter of the SR; wherein the first transmission parameter at least comprises an offset, a scheduling period and/or a repeated transmission interval; and the terminal determines the time interval for transmitting the SR according to the first transmission parameter of the SR and repeatedly transmits the SR within the determined time interval. By the scheme of the invention, the SR is repeatedly transmitted in the time interval determined according to the first transmission parameter of the SR, thereby enhancing the coverage of the SR.

Description

Method and device for transmitting scheduling request

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for transmitting a Scheduling Request (SR).

Background

Machine Type Communication (MTC) or Machine to Machine (M2M) User Equipment (UE) is the main application form of the internet of things at present. Low power consumption/low cost is an important guarantee for its scalable applications. The M2M devices currently deployed in the market are mainly based on Global System for Mobile communications (GSM) System. In recent years, as the spectrum efficiency of Long Term Evolution (LTE) systems is higher, and more mobile operators have determined LTE as the Evolution direction of future broadband wireless communication systems, various types of data services of M2M based on LTE will be more attractive.

The cost of the UE (including MTC UE) is mainly from two parts: a baseband processing section and a radio frequency section. To reduce the cost of MTC UEs, reducing the uplink and/or downlink transmission bandwidth (including baseband bandwidth and radio frequency bandwidth) of UEs is a very effective way to reduce the cost of MTC UEs, for example, setting the uplink and/or downlink transmission bandwidth of all MTC UEs to be only a narrow bandwidth (even if the system bandwidth far exceeds 1.4MHz) such as 1.4 megahertz (MHz). Besides the method for reducing the transmission bandwidth, the following method can be adopted to further reduce the cost of the MTC UE: single receive antenna, reduced transmit power, reduced maximum Transport Block Size (TBS), etc.

Since some MTC UEs are installed in basements of houses or in places sheltered by aluminum alloy windows or conventional thick-wall building structures, these UEs experience considerable penetration loss on the radio frequency interface compared to normal MTC UEs, and therefore, in order to ensure normal data transmission of such UEs, it is necessary to enhance the coverage of MTC UEs. The types of channels for which enhanced coverage is required include: a Physical Uplink or Downlink Shared Channel (PUSCH/PDSCH), a Physical Uplink/Downlink Shared Channel (PUCCH/PDCCH), and a Physical Uplink/Downlink Control Channel (PUCCH/PDCCH). Wherein, the coverage enhancement of the PDSCH includes coverage enhancement of System Information Block (SIB) data, Paging (Paging) message, and coverage enhancement of unicast service data. To accumulate more energy to improve coverage, iterative methods are commonly used to achieve transmission enhancements for various channel types.

A PUCCH in the existing LTE system is used to carry Uplink Control Information (UCI); wherein, the UCI includes: hybrid Automatic repeat Request (HARQ) Acknowledgement (ACK)/Negative Acknowledgement (NACK), SR, and Channel State Information (CSI). The existing method for transmitting scheduling requests roughly comprises the following steps: the base station (eNB) and the terminal transmit and attempt to receive the SR at a determined subframe interval at a determined uplink subframe position, i.e., uplink subframes for SR transmission periodically occur at the determined subframe interval. In the existing method for transmitting the scheduling request, when the signal-to-noise ratio is low, the eNB cannot accurately receive the SR. While the prior art does not give a good solution to enhance SR coverage.

Disclosure of Invention

In order to solve the above problem, the present invention provides a method and an apparatus for transmitting a scheduling request, which can enhance the coverage of an SR.

In order to achieve the above object, the present invention provides a method for transmitting a scheduling request SR, including:

the terminal acquires a first transmission parameter of the SR;

wherein the first transmission parameter at least comprises an offset, a scheduling period and/or a repeated transmission interval;

and the terminal determines the time interval for transmitting the SR according to the first transmission parameter of the SR and repeatedly transmits the SR within the determined time interval.

Preferably, the acquiring, by the terminal, the first transmission parameter of the SR includes:

the terminal presets a first transmission parameter of the SR; or acquiring a first transmission parameter of the SR according to a received indication signaling from a base station; or acquiring a first transmission parameter of the SR according to the coverage enhancement grade of the SR.

Preferably, the determining, by the terminal, the time interval for sending the SR according to the first transmission parameter includes:

the terminal sends the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession;

the terminal determines that the time interval for sending the SR is P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks;

wherein, P_SRIs the first transmission parameterScheduling period of (1), N_SRIs the number of repetitions in the first transmission parameter.

Preferably, the time interval for transmitting the SR is determined to be P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the terminal is according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, the time interval for which the transmission SR is determined to be N consecutive in time from the start of the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (P)_SR/N_SR-1) is any integer.

Preferably, the determining, by the terminal, the time interval for sending the SR according to the first transmission parameter of the SR includes:

the terminal sends the scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR；

The terminal determines that the time interval for sending the SR is K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks;

wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the time interval for transmitting the SR is determined to be K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks includes:

the terminal is according to the formula TIN _1mod P_SR＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (P)_SR/N_SR-1) or (K)_SR-1) is any integer.

Preferably, the time interval for transmitting the SR is determined to be K according to the offset in the first transmission parameter_SROne of the time interval blocks includes:

the terminal is according to the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

the terminal sends the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession;

the terminal divides all time intervals in each scheduling area into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR；

the terminal is according to the formula TIN _1mod P_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval,

O_SR，1and O_SR，2Is an offset in the first transmission parameter, and the O_SR，1Is 0 to

Is any one of the integers, O_SR,2Is 0 to (K)_SR-1) is any integer.

the terminal divides all time intervals into K_SRGrouping time intervals;

wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR；

The terminal determines that the time interval for sending the SR is K according to the offset in the first transmission parameter_SROne of the groups;

wherein, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, said transmitting according to the first transmissionThe offset in the parameters determines the time interval for transmitting the SR to be K_SROne of the packets includes:

the terminal is according to a formula TIN mod K_SR＝O_SRDetermining a time interval for transmitting the SR;

wherein TIN is the number of the time interval for transmitting the SR, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

Preferably, when the duration of the SR sent by the terminal exceeds the scheduling period in the M first transmission parameters and no uplink grant is received from the base station, the method further includes:

the terminal acquires a second transmission parameter of the SR; wherein the second transmission parameters comprise at least an offset, a scheduling period and/or a repeated transmission interval; determining a time interval for sending the SR according to the obtained second transmission parameter, and repeatedly sending the SR within the determined time interval;

wherein M is a positive integer greater than or equal to 1.

Preferably, the M is determined according to an instruction from the base station or according to a coverage enhancement level of the SR.

Preferably, the scheduling period in the first transmission parameter is smaller than the scheduling period in the second transmission parameter, and/or the repetition transmission interval in the second transmission parameter is smaller than the repetition transmission interval in the first transmission parameter, and/or the first transmission parameter further includes the repetition number, the second transmission parameter further includes the repetition number, and the repetition number in the first transmission parameter is smaller than the repetition number in the second transmission parameter.

Preferably, when the duration of the SR sent by the terminal exceeds the scheduling period of the M first transmission parameters and no uplink grant is received from the base station, before the terminal acquires the second transmission parameter of the SR, the method further includes:

the terminal receives a signaling from the base station indicating adjustment of transmission parameters of the SR.

The invention also provides a method for transmitting the scheduling request SR, which comprises the following steps:

a base station acquires a first transmission parameter of an SR; wherein the first transmission parameter at least comprises an offset, a scheduling period and/or a repeated transmission interval;

and the base station determines a time interval for receiving the SR according to the obtained first transmission parameter, and combines and receives the SR in the determined time interval.

Preferably, the determining, by the base station, the time interval for receiving the SR according to the first transmission parameter includes:

the base station transmits the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession;

the base station determines that the time interval for receiving the SR is P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks;

wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

the base station is according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, the time interval of the receiving SR being N consecutive in time from the first time interval_SRA time interval;

Preferably, the determining, by the base station, the time interval for receiving the SR according to the first transmission parameter of the SR includes:

the base station transmits the first transmission parametersScheduling period P_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR；

The base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks;

Preferably, the time interval for receiving the SR is determined to be K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks includes:

the base station is according to the formula TIN _1mod P_SR＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

Preferably, the time interval for receiving the SR is determined to be K according to the offset in the first transmission parameter_SROne of the time interval blocks includes:

the base station follows the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 isNumber of said first time interval, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

the base station transmits the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession;

the base station divides all time intervals in each scheduling area into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR；

Preferably, the time interval for receiving the SR is determined as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the base station is according to the formula TIN _1mod P_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval,

O_SR,1and O_SR,2For the offset in the first transmission parameter,and said O is_SR,1Is 0 to

Is any one of the integers, O_SR,2Is 0 to (K)_SR-1) is any integer.

the base station divides all time intervals into K_SRGrouping time intervals;

The base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROne of the groups;

Preferably, the time interval for receiving the SR is determined to be K according to the offset in the first transmission parameter_SROne of the packets includes:

the base station follows the formula TIN mod K_SR＝O_SRDetermining a time interval for receiving the SR;

wherein TIN is the number of the time interval for receiving the SR, O_SRIs an offset in the first transmission parameter or the second transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

Preferably, the combining the received SRs during the determined time interval includes:

and receiving the SR according to sliding window combination in the determined time interval.

Preferably, when the base station does not correctly decode the SR, the method further comprises:

the base station acquires a second transmission parameter of the SR; wherein the second transmission parameters comprise at least an offset, a scheduling period and/or a repeated transmission interval;

and the base station determines a time interval for receiving the SR according to the second transmission parameter of the SR, and combines and receives the SR in the determined time interval.

Preferably, when the base station does not correctly decode the SR, before the obtaining the second transmission parameter of the SR, the method further includes:

and the base station sends a signaling for indicating the adjustment of the transmission parameter of the SR to a terminal.

The invention also provides a device for transmitting the scheduling request SR, which at least comprises:

the first acquisition module is used for acquiring a first transmission parameter of the SR; wherein the first transmission parameter at least comprises an offset, a scheduling period and/or a repeated transmission interval;

the first determining module is used for determining a time interval for sending the SR according to the first transmission parameter of the SR;

and the sending module is used for repeatedly sending the SR within the determined time interval.

Preferably, the first obtaining module is specifically configured to:

presetting a first transmission parameter of the SR; or acquiring a first transmission parameter of the SR according to a received indication signaling from a base station; or acquiring a first transmission parameter of the SR according to the coverage enhancement grade of the SR.

Preferably, the first determining module is specifically configured to:

scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; determining the time interval for sending the SR to be P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

Preferably, the first determining module is specifically configured to:

dividing all time intervals within a scheduling period in the first transmission parameter into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, the time interval for which the transmission SR is determined to be N consecutive in time from the start of the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (P)_SR/N_SR-1) is any integer.

Preferably, the first determining module is specifically configured to:

scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a Determining that the time interval for sending the SR is K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRFor the number of repetitions in the first transmission parameterNumber, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the first determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod P_SR＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRFor a repeat transmission interval in said first transmission parameter, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (P)_SR/N_SR-1) or (K)_SR-1) is any integer.

Preferably, the first determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the first time zoneNumber of cells, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRFor a repeat transmission interval in said first transmission parameter, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

Preferably, the first determining module is specifically configured to:

scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a Determining the time interval for sending the SR to be P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the first determining module is specifically configured to:

dividing all time intervals within a scheduling period in the first transmission parameter into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals with discontinuous time; wherein each time interval block comprises N_SRA time interval, and the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN _1mod P_SR＝O_SR, ₁K_SRN_SR+O_SR,2Determining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, O_SR，1And O_SR，2Is an offset in the first transmission parameter, and the O_SR，1Is 0 to

Is any one of the integers, O_SR，2Is 0 to (K)_SR-1) any integer, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the first determining module is specifically configured to:

dividing all time intervals into K_SRGrouping time intervals; wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a Determining that the time interval for sending the SR is K according to the offset in the first transmission parameter_SROne of the groups; wherein, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the first determining module is specifically configured to:

dividing all time intervals into K_SRA group of the data; wherein the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN mod K_SR＝O_SRDetermining a time interval for transmitting the SR;

wherein TIN is the number of the time interval for transmitting the SR, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) any integer, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the first obtaining module is further configured to:

the duration of the SR is sent to exceed the scheduling period of the M first transmission parameters, and no uplink grant from the base station is received, so that a second transmission parameter of the SR is obtained; wherein the second transmission parameter comprises an offset, a scheduling period and/or a repeated transmission interval;

the first determination module is further to:

determining a time interval for sending the SR according to the obtained second transmission parameter;

wherein M is a positive integer greater than or equal to 1.

Preferably, the first obtaining module is specifically configured to:

sending a scheduling period that the duration of the SR exceeds M first transmission parameters, receiving no uplink grant from the base station, receiving a signaling indicating to adjust the transmission parameters of the SR from the base station, and acquiring second transmission parameters of the SR; wherein the second transmission parameters include at least an offset, a scheduling period, and/or a repetition transmission interval.

the second acquisition module is used for acquiring the first transmission parameter of the SR; wherein the first transmission parameter at least comprises an offset, a scheduling period and/or a repeated transmission interval;

the second determining module is used for determining a time interval for receiving the SR according to the obtained first transmission parameter;

and the receiving module is used for combining and receiving the SR in the determined time interval.

Preferably, the second determining module is specifically configured to:

dividing all time intervals within a scheduling period in the first transmission parameter into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; determining the time interval for receiving the SR as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

Preferably, the second determining module is specifically configured to:

scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, the time interval of the receiving SR being N consecutive in time from the first time interval_SRA time interval;

Preferably, the second determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a Determining a time interval for receiving the SR as K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the second determining module is specifically configured to:

will be described inScheduling period P in first transmission parameters_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod P_SR＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRIs a scheduling period, O, in the first transmission parameter_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (P)_SR/N_SR-1) or (K)_SR-1) is any integer.

Preferably, the second determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

Preferably, the second determining module is specifically configured to:

scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a Determining the time interval for receiving the SR as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the second determining module is specifically configured to:

dividing all time intervals within a scheduling period in the first transmission parameter into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals with discontinuous time; wherein each time interval block comprises N_SRA time interval, and the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN _1mod P_SR＝O_SR, ₁K_SRN_SR+O_SR,2Determining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

Preferably, the second determining module is specifically configured to:

dividing all time intervals into K_SRGrouping time intervals; wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a Determining a time interval for receiving the SR as K according to the offset in the first transmission parameter_SROne of the groups; wherein, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the second determining module is specifically configured to:

dividing all time intervals into K_SRA group of the data; wherein the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN mod K_SR＝O_SRDetermining a time interval for receiving the SR;

wherein TIN is the number of the time interval for receiving the SR, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) any integer, K_SRIs a repeated transmission interval in the first transmission parameter.

Preferably, the receiving module is specifically configured to:

and combining the received SRs according to the sliding window within the determined time interval.

Preferably, the second obtaining module is further configured to:

when the SR is not decoded correctly, acquiring a second transmission parameter of the SR; wherein the second transmission parameters comprise at least an offset, a scheduling period and/or a repeated transmission interval;

the second determination module is further to:

and determining a time interval for receiving the SR according to the second transmission parameter of the SR.

Preferably, the second obtaining module is specifically configured to:

when the decoding is not correct, sending a signaling for indicating to adjust the transmission parameters of the SR to a terminal to obtain second transmission parameters of the SR; wherein the second transmission parameters include at least an offset, a scheduling period, and/or a repetition transmission interval.

Compared with the prior art, the invention comprises the following steps: the terminal acquires a first transmission parameter of the SR; wherein the first transmission parameter at least comprises an offset, a scheduling period and/or a repeated transmission interval; the terminal determines a time interval for transmitting the SR according to the first transmission parameter of the SR, and repeatedly transmits the SR within the determined time interval. By the scheme of the invention, the SR is repeatedly transmitted in the time interval determined according to the first transmission parameter of the SR, thereby enhancing the coverage of the SR.

Further, when the duration of the SR sent by the terminal exceeds the scheduling period in the M first transmission parameters and no uplink grant is received from the base station, the method further includes: the terminal acquires a second transmission parameter of the SR; wherein the second transmission parameters comprise at least an offset, a scheduling period and/or a repeated transmission interval; determining a time interval for transmitting the SR according to the obtained second transmission parameter, and repeatedly transmitting the SR within the determined time interval; further improves the coverage enhancement capability of the SR, and simultaneously reduces the SR transmission delay, thereby greatly improving the transmission efficiency of the coverage enhancement.

Drawings

The accompanying drawings in the embodiments of the present invention are described below, and the drawings in the embodiments are provided for further understanding of the present invention, and together with the description serve to explain the present invention without limiting the scope of the present invention.

FIG. 1 is a flowchart illustrating a method for transmitting an SR at a terminal side according to the present invention;

FIG. 2(a) shows a scheduling period P_SRAll time intervals in the time interval are divided into P_SR/N_SRA schematic of time interval blocks;

FIG. 2(b) shows a scheduling period P_SROr K_SRN_SRAll time intervals in the time interval are divided into P_SR/N_SROr K_SRA schematic of time interval blocks;

FIG. 2(c) is a diagram illustrating the division of all time intervals in a scheduling period into P_SR/(K_SRN_SR) A schematic diagram of a scheduling region;

FIG. 2(d) shows the division of all time intervals into K_SRA schematic diagram of a packet;

FIG. 3 is a flowchart of a method for transmitting SR at the network side according to the present invention;

FIG. 4 is a diagram illustrating a method for transmitting an SR in accordance with a first embodiment of the present invention;

FIG. 5 is a diagram illustrating a method for transmitting an SR in accordance with a second embodiment of the present invention;

fig. 6 is a diagram illustrating a method for transmitting an SR according to a third embodiment of the invention.

FIG. 7 is a schematic structural diagram of an apparatus for transmitting SR according to the present invention;

FIG. 8 is a schematic diagram of another structure of an apparatus for transmitting SR in accordance with the present invention.

Detailed Description

The following further description of the present invention, in order to facilitate understanding of those skilled in the art, is provided in conjunction with the accompanying drawings and is not intended to limit the scope of the present invention. In the present application, the embodiments and various aspects of the embodiments may be combined with each other without conflict.

To transmit new Uplink data, the SR is used to request Uplink Shared Channel (UL-SCH) resources from the base station.

Referring to fig. 1, the present invention provides a method for transmitting an SR, including:

step 100, the terminal acquires a first transmission parameter of the SR.

In this step, the first transmission parameter of the SR at least includes an offset, a scheduling period, and/or a repetition transmission interval.

Wherein the first transmission parameter may further include a repetition number. It can be said that the first transmission parameters of the SR include all transmission parameters related to the determination of the SR repetition transmission time domain resource.

The scheduling period, or the offset, or the retransmission interval, or the number of repeated transmissions includes an integer number of time intervals, i.e., the time intervals are units.

The time interval may be any determined or fixed time span, such as a radio frame, or a half frame, or a time occupied by at least one subframe.

Wherein the scheduling period is greater than or equal to the number of repetitions. This enables SR repeated transmission within the scheduling period of the SR, thereby ensuring performance of SR repeated transmission within the SR scheduling period.

The scheduling period may also be referred to as a combining period, and represents a time interval between two adjacent combining and receiving of the SR; the repetition transmission interval means: when the repeated transmission of the SR is a time interval with discontinuous occupied time, the number of time intervals between two adjacent time intervals is equal to the number of the time intervals; the number of repetitions refers to the number of time intervals in which the SR is repeatedly transmitted.

In this step, the acquiring, by the terminal, the first transmission parameter of the SR includes:

the terminal presets a first transmission parameter of the SR; or acquiring a first transmission parameter of the SR according to the received indication signaling from the base station; or, obtaining the first transmission parameter of the SR according to the coverage enhancement grade of the SR.

Wherein, the coverage enhancement level of the SR is also called as the repetition level of the SR, and a higher level indicates that the coverage enhancement degree required by the SR is larger.

Wherein, the indication signaling comprises a first transmission parameter of the SR; the terminal acquires a first transmission parameter of the SR according to the received indication signaling from the base station, and the first transmission parameter comprises:

the terminal receives a high-level Radio Resource Control (RRC) parameter from the base station, and acquires a first transmission parameter in the received high-level RRC parameter.

Or the terminal receives the high-layer RRC parameter from the base station, and searches the corresponding relation between the preset high-layer RRC parameter and one or more of the first transmission parameters for the second received high-layer RRC parameterOne or more of a transmission parameter. For example, the terminal passes a unique higher layer RRC parameter I_SR(sr-ConfigIndex) obtaining the number of repetitions K in the first transmission parameter_SRAnd an offset O_SR. As shown in Table 1, I can be preconfigured_SR、K_SRAnd O_SRThe corresponding relation between the two RRC parameters is obtained_SRThen, searching I in the corresponding relation_SRCorresponding K_SRAnd O_SR。

I_SR	K_SR	O_SR
			0–4	5	I_SR
5–14	10	I_SR-5
			15–34	20	I_SR-15
35–74	40	I_SR-35
			75–154	80	I_SR-75
......	......	......

TABLE 1

Wherein, obtaining the first transmission parameter of the SR according to the coverage enhancement level of the SR includes: and searching a first transmission parameter corresponding to the coverage enhancement grade of the SR in the preset corresponding relation between the coverage enhancement grade of the SR and the first transmission parameter. For example, different SR coverage enhancement levels may be paired with different SR first transmission parameters before the first transmission parameters of the SRs are obtained according to the coverage enhancement levels of the SRs, such that any SR coverage enhancement level corresponds to a unique SR first transmission parameter.

The repeated transmission interval, and/or the scheduling period, and/or the number of repetitions in the first transmission parameter may also be preset.

Wherein, the number of repetitions in the first transmission parameter may also be obtained according to the coverage enhancement level of the current SR.

Step 101, the terminal determines a time interval for transmitting the SR according to the first transmission parameter of the SR, and repeatedly transmits the SR within the determined time interval.

In this step, the time interval determined according to the first transmission parameter is a time-continuous or discontinuous time interval. In this step, the determining, by the terminal, the time interval for sending the SR according to the first transmission parameter includes:

the terminal sends the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; the terminal determines the time interval for sending the SR to be P according to the offset in the first transmission parameter_SR/N_SRA time zoneOne of the inter blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

The terminal determines that the time interval for sending the SR is P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the terminal determines a first time interval according to equation (1), and determines that the time interval for transmitting the SR is N consecutive in time from the start of the first time interval_SRAnd (4) a time interval.

TIN_1mod P_SR＝O_SRN_SR (1)

Wherein, O_SRIs 0 to (P)_SR/N_SR-1) is any integer.

Wherein TIN _1 is the first time interval number, O_SRIs an offset in the first transmission parameter.

FIG. 2(a) shows a scheduling period P_SRAll time intervals in the time interval are divided into P_SR/N_SRSchematic of time interval chunking. In this method of determining the time interval, as shown in fig. 2, each scheduling period P is divided into two or more scheduling periods_SRAll time intervals in the time interval are divided into P_SR/N_SREach time interval block comprises N_SRA time interval of time succession, such that it depends on the allocated O_SRTaking values, the UE can select one of the blocks in all the time intervals to repeatedly send the SR; by allocating different O's to different UEs_SRTaking values, different UEs can use different time interval blocks to repeatedly send SRs, and the base station can also receive SRs sent by different UEs in different time interval blocks. The method has the advantages of lower implementation complexity and smaller transmission delay.

Or the terminal sends the scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRWhen a time is not continuousInterval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a The terminal determines the time interval for sending the SR to be K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

Wherein, the time interval for transmitting the SR is determined to be K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks includes:

the terminal determines a first time interval according to formula (2), and determines that the time interval for transmitting the SR is discontinuous N from the first time interval_SRAnd (4) a time interval.

Wherein, the time interval between two adjacent time intervals may be P_SR/N_SR。

TIN_1mod P_SR＝O_SR (2)

Wherein, O_SRIs 0 to (P)_SR/N_SR-1) or 0 to (K)_SR-1) is any integer.

Or, the terminal determines a first time interval according to formula (3), and determines that the time interval for transmitting the SR is N discontinuous in time from the first time interval_SRAnd (4) a time interval.

Wherein, the time interval between two adjacent time intervals can be P_SR/N_SR。

TIN_1mod(K_SRN_SR)＝O_SR (3)

Wherein, O_SRIs 0 to (K)_SR-1) is any integer.

FIG. 2(b) shows a scheduling period P_SROr K_SRN_SRAll time intervals in the time interval are divided into P_SR/N_SROr K_SRSchematic of time interval chunking. In this method of determining time intervals, all time intervals in each scheduling period are divided into P, as shown in fig. 2(b)_SR/N_SROr K_SREach time interval block comprises N_SRThe time intervals are uniformly distributed and are not continuous in time, and the time interval between two adjacent time intervals is P_SR/N_SROr K_SRDependent on O_SRTaking values, the UE can select one of the blocks in all the time intervals to repeatedly send the SR; by allocating different O's to different UEs_SRTaking values, different UEs may use different time intervals to repeatedly send SRs in blocks, and the base station may also receive SRs sent by different UEs in blocks in different time intervals. The method provides enough time diversity gain, reduces the number of required repetition times in the range of the scheduling period, and further reduces the corresponding control overhead; when the HARQ-ACK retransmission occupies a continuous time interval, the SR and the HARQ-ACK may not share the same number of retransmissions since the SR retransmission occupies a discontinuous time interval.

Or the terminal sends the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; the terminal divides all time intervals in each scheduling region into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a The terminal determines the time interval for sending the SR to be P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks.

the terminal determines a first time interval according to equation (4),determining that a time interval for transmitting the SR is N discontinuous in time from a first time interval_SRAnd (4) a time interval.

Wherein, the time interval between two adjacent time intervals may be K_SR。

TIN_1mod P_SR＝O_SR,1K_SRN_SR+O_SR,2 (4)

Wherein, O_SR,1Is 0 to P_SR/[(K_SRN_SR)-1]And any one of the integers of (1), and O_SR,2Is 0 to (K)_SR-1) is any integer.

FIG. 2(c) shows a scheduling period P_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) Schematic diagram of each scheduling region. In this method for determining time intervals, all time intervals in each scheduling period are divided into P as shown in fig. 2(c)_SR/(K_SRN_SR) Each scheduling region including K_SRN_SRA time interval dividing all time intervals in each scheduling region into K_SREach time interval block comprises N_SRA plurality of time intervals with uniformly distributed time discontinuity, and the interval between two adjacent time intervals is K_SRDependent on allocated O_SR,1And O_SR,2Taking values, the UE can select one of the blocks in all the time intervals to repeatedly send the SR; by allocating different O's to different UEs_SR,1And O_SR,2Taking values, different UEs may use different time intervals in the same or different scheduling regions to repeatedly transmit SRs in blocks, and the base station may also use different time intervals in the same or different scheduling regions to block and receive SRs transmitted by different UEs.

The method has relatively smaller time diversity gain, but reduces the transmission delay of the SR to a certain extent, thereby realizing the balance between control overhead and delay; when the HARQ-ACK retransmission occupies a continuous time interval, the SR and the HARQ-ACK may not share the same number of retransmissions since the SR retransmission at this time occupies a discontinuous time interval.

If the UE has a valid PUCCH format 1 resource for SR and has not received UL-SCH resource grant information from the base station, when the number of SR scheduling cycles experienced by the UE for repeatedly transmitting SR is less than the allowed maximum value (predefined or indicated by RRC parameter from the base station), the UE continuously transmits SR signal on the configured PUCCH format 1 resource in one of all SR repeated transmission modes; otherwise, initiating a random access procedure.

It should be emphasized that, in the above-mentioned repeated transmission scheme of all SRs, N of the transmission SR_SREach time interval is a scheduling period P_SROccurs periodically for intervals.

Or, the terminal divides all time intervals into K_SRGrouping time intervals; wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a The terminal determines the time interval for sending the SR to be K according to the offset in the first transmission parameter_SROne of the groups; wherein, K_SRIs a repeated transmission interval in the first transmission parameter.

Wherein, the time interval for transmitting the SR is determined to be K according to the offset in the first transmission parameter_SROne of the packets includes:

the terminal determines a time interval for transmitting the SR according to equation (5).

Wherein, the time interval between two adjacent time intervals may be K_SR。

TIN mod K_SR＝O_SR (5)

Wherein, O_SRIs 0 to (K)_SR-1) is any integer.

Where, TIN is the number of the time interval for transmitting SR.

FIG. 2(d) shows the division of all time intervals into K_SRSchematic diagram of a packet. In this method of determining time intervals, all time intervals are divided into K as shown in fig. 2(d)_SRTime interval groups, each group comprising N_SRUniformly distributed timeConsecutive time intervals, and the time interval between two adjacent time intervals is K_SRDependent on allocated O_SRTaking values, the UE can select one of all time interval groups to continuously send the SR; by allocating different O for different UEs_SRTaking values, different UEs may use different time interval packets to continuously transmit SRs, and the base station may also use different time interval packets to combine and receive the SRs transmitted by different UEs.

If the UE has a valid PUCCH format 1 resource for SR and has not received UL-SCH resource grant information from the base station, when the number of times that the UE continuously transmits the SR is less than the allowed maximum value (predefined or indicated by an RRC parameter from the base station), the UE continuously transmits an SR signal on the configured PUCCH format 1 resource in the SR repeated transmission mode; otherwise, initiating a random access procedure.

And when the duration of the SR sent by the terminal exceeds the scheduling period in the M first transmission parameters and does not receive the uplink grant from the base station, wherein M is a positive integer greater than or equal to 1 and is determined according to the indication signaling from the base station or according to the coverage enhancement level of the SR.

Wherein the determining, by M, of the coverage enhancement level according to the SR comprises: and searching M corresponding to the coverage enhancement level of the SR in the preset corresponding relation between M and the coverage enhancement level of the SR.

Wherein, the coverage enhancement level of the SR corresponding to each M in the correspondence relationship may be one or more than one. For example, before determining M according to SR coverage enhancement levels, different SR coverage enhancement levels and different M values may be paired with each other, so that any one M value corresponds to at least one SR coverage enhancement level; thus, the value of M can be easily determined according to the SR coverage enhancement level.

The method further comprises the following steps:

102, the terminal acquires a second transmission parameter of the SR; and the terminal determines the time interval for transmitting the SR according to the second transmission parameter of the SR and repeatedly transmits the SR within the determined time interval. The UE automatically determines the time interval for sending the SR according to the second transmission parameter of the SR and repeatedly sends the SR in the determined time interval, so that the base station is prevented from redistributing or indicating a new transmission parameter to the UE, or an unnecessary random access process is avoided, and the SR transmission delay is reduced.

In this step, before the terminal acquires the second transmission parameter of the SR, the method further includes: the terminal receives signaling from the base station indicating to adjust transmission parameters of the SR. At this time, the function of the terminal to adjust the transmission parameter (i.e. determine the time interval for transmitting the SR according to the second transmission parameter) is an optional or alternative function of the terminal, that is, the function is enabled by the terminal only if the terminal receives a signaling from the base station indicating to adjust the transmission parameter of the SR.

In this step, in order to ensure that the coverage performance of transmitting the SR according to the second transmission parameter is not lower than the coverage performance of transmitting the SR according to the first transmission parameter, the scheduling period in the first transmission parameter may be smaller than the scheduling period in the second transmission parameter, and/or the repeated transmission interval in the second transmission parameter may be smaller than the repeated transmission interval in the first transmission parameter, and/or the number of repetitions in the first transmission parameter may be smaller than the number of repetitions in the second transmission parameter.

In this step, the second transmission parameter and the first transmission parameter have the same parameter set, but have different values. The terminal only obtains the first transmission parameter and the second transmission parameter of the SR at different times, and how the terminal specifically obtains the second transmission parameter of the SR may be the same as the process of obtaining the first transmission parameter of the SR by the terminal, but only the specific values of the obtained transmission parameters are different.

Or, the acquiring, by the terminal, the second transmission parameter of the SR includes: and the terminal acquires a second transmission parameter according to the first transmission parameter. Specifically, the base station indicates differentially based on the first transmission parameter, that is, the indication signaling from the base station carries a variation value of at least one of the second transmission parameters with respect to the first transmission parameter. For example, it may be defined that the scheduling period or the number of repetitions in the second transmission parameter is always the first of all available values that are larger than the scheduling period or the number of repetitions in the first transmission parameter.

In this step, the time interval determined according to the second transmission parameter is a time-continuous or discontinuous time interval.

In this step, how the terminal determines the time interval for transmitting the SR according to the second transmission parameter of the SR is the same as the process of determining the time interval for transmitting the SR according to the first transmission parameter of the SR.

Referring to fig. 3, the present invention further provides a method for transmitting an SR, including:

step 300, the base station obtains a first transmission parameter of the SR.

In this step, the first transmission parameter at least includes an offset, a scheduling period, and/or a retransmission interval. Wherein the first transmission parameter may further include a repetition number. It can be said that the first transmission parameters of the SR include all transmission parameters related to the determination of the SR repetition transmission time domain resource.

The scheduling period, or the offset, or the repetition transmission interval, or the repetition number includes an integer number of time intervals, that is, the time intervals are units.

Wherein the scheduling period is greater than or equal to the number of repetitions. This enables SR repeated transmission within the SR scheduling period, thereby ensuring performance of SR repeated transmission within the SR scheduling period.

The scheduling period may also be referred to as a combining period, which represents a time interval between two adjacent combining and receiving of the SR by the base station; the repetition transmission interval means: when the repeated transmission of the SR is a time interval with discontinuous occupied time, the number of time intervals between two adjacent time intervals is equal to the number of the time intervals; the number of repetitions refers to the number of time intervals in which the SR is repeatedly transmitted.

In this step, the base station acquiring the first transmission parameter of the SR includes:

and acquiring a first transmission parameter of the SR according to the coverage enhancement grade of the SR. For example, before the first transmission parameter of the SR is acquired according to the coverage enhancement level of the SR, different values of the coverage enhancement level of the different SRs and the first transmission parameter of the SR may be paired with each other, so that the coverage enhancement level of any SR corresponds to the value of the first transmission parameter of the only SR.

The first transmission parameter may also be preset or preconfigured.

Step 301, the base station determines a time interval for receiving the SR according to the first transmission parameter of the SR, and combines and receives the SR within the determined time interval.

In this step, the time interval determined according to the first transmission parameter is a time-continuous or discontinuous time interval.

In this step, the base station determining the SR receiving time interval according to the first transmission parameter of the SR includes:

the base station transmits a scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; the base station determines the time interval for receiving the SR as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

The base station determines that the time interval for receiving the SR is P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the base station determines a first time interval according to formula (1), and determines that the time interval for receiving the SR is N which is continuous in time from the beginning of the first time interval_SRAnd (4) a time interval.

In the method for determining time interval, the period P is scheduled_SRAll time intervals in the time interval are divided into P_SR/N_SREach time interval block comprises N_SRA time interval of time succession, such that it depends on the allocated O_SRValue taking, wherein the base station selects one of all time interval blocks to be combined and receives the SR; by allocating different O for different UEs_SRTaking values, different UEs can makeThe SR is repeatedly transmitted in different time interval blocks, and the base station may also combine and receive the SRs transmitted by different UEs in different time interval blocks. The method has the advantages of lower implementation complexity and smaller transmission delay.

Or the base station transmits the scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a The base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks.

The base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks includes: the base station determines a first time interval according to the formula (2) or (3), and determines that the time interval for receiving the SR is discontinuous N from the time of the first time interval_SRAnd (4) a time interval.

In the method for determining the time interval, each scheduling period P_SRAll time intervals in the time interval are divided into P_SR/N_SROr K_SREach time interval block comprises N_SRA time interval with uniform distribution and discontinuous time, and the time interval of two adjacent time intervals is P_SR/N_SROr K_SRDependent on allocated O_SRValue taking, wherein the base station selects one of all time interval blocks to be combined and receives the SR; by allocating different O's to different UEs_SRTaking values, different UEs may use different time intervals to repeatedly send SRs in blocks, and the base station may also receive SRs sent by different UEs in blocks in different time intervals. The method provides sufficient time diversity gain, reduces the number of repetitions required within the scheduling period, and thereby reduces the corresponding control overhead(ii) a When the HARQ-ACK retransmission occupies a continuous time interval, the SR and the HARQ-ACK may not share the same number of retransmissions since the SR retransmission at this time occupies a discontinuous time interval.

Or the base station transmits the scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; the base station divides all time intervals in each scheduling area into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a The base station determines the time interval for receiving the SR as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks.

the base station determines a first time interval according to formula (4), and determines that the time interval for receiving the SR is discontinuous N from the time of the first time interval_SRAnd (4) a time interval.

Wherein, the time interval between two adjacent time intervals may be K_SR。

In the method for determining the time interval, each scheduling period P_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) Each scheduling region including K_SRN_SRA time interval dividing all time intervals in each scheduling region into K_SREach time interval block comprises N_SRA plurality of time intervals with uniformly distributed time discontinuity, and the interval between two adjacent time intervals is K_SRDependent on allocated O_SR,1And O_SR,2Taking value, the base station selects one of the blocks in all time intervals to be combined and connectedSR receiving; by allocating different O's to different UEs_SR,1And O_SR,2Taking values, different UEs may use different time intervals in the same or different scheduling regions to repeatedly transmit SRs in blocks, and the base station may also use different time intervals in the same or different scheduling regions to block and receive SRs transmitted by different UEs.

It should be emphasized that, in the above-mentioned repeated transmission scheme of all SRs, N of the received SR_SREach time interval is a scheduling period P_SROccurs periodically for intervals.

Alternatively, the base station divides all time intervals into K_SRGrouping time intervals; wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a The base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROne of the groups.

The base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROne of the packets includes: the base station determines a time interval for receiving the SR according to equation (5).

Wherein, the time interval between two adjacent time intervals may be K_SR。

In the method for determining time intervals, all time intervals are divided into K_SRA plurality of packets, each packet comprising N_SRA time interval with uniformly distributed time discontinuity, and the time interval between two adjacent time intervals is K_SRDependent on allocated O_SRTaking values, the base station selects one of all time interval groups to be combined and receives the SR; by allocating different O's to different UEs_SRValue of notThe same UE may repeatedly transmit the SR using different time interval packets, and the base station may also group and receive the SRs transmitted by different UEs in different time intervals.

In this step, when the base station determines that the time interval for receiving the SR is K according to the offset in the first transmission parameter_SRCombining the received SRs for the determined time interval for one of the packets comprises: and combining the received SRs according to the sliding window within the determined time interval.

Since the base station cannot know the time interval position of the first transmission SR, combining the reception SRs must be tried in sequence according to a sliding window. The sliding window comprises an integer number of time intervals, namely the sliding window is also in units of the time intervals; the sliding window may also be determined according to the coverage enhancement level of the SR, and specifically, the sliding window may be set in the base station in advance to be determined according to a corresponding relationship between the sliding window and the coverage enhancement level of the SR.

Wherein, the receiving the SR in the determined time interval according to the sliding window combination comprises:

the combining attempts are sequentially made to receive the SRs over the following W time intervals:

{TIN₀,TIN₁,TIN₂,……,TIN_W-1}，{TIN₁,TIN₂,TIN₃,……,TIN_W}，

{TIN₂,TIN₃,TIN₄,……,TIN_W+1}，

{TIN₃,TIN₄,TIN₅,……,TIN_W+2}，……。

wherein W represents a sliding window, TIN_i(i ═ 0,1,2, …) denotes a set of numbers that can be used to merge time intervals in which the SR is received.

For example, consider TIN_iCan be expressed as:

1m,2m,3m,4m,5m,6m,7m,8m,9m,……，

at this time, bias O_SREqual to 0, and a repeat transmission interval K_SRIs equal to m; assuming that the determined sliding window W is 5 time intervals, in this case, the base station sequentially tries to combine and receive the potential SR transmissions in the following 5 time intervalsUntil the SR is decoded correctly:

{1m,2m,3m,4m,5m}，{2m,3m,4m,5m,6m}，

{3m,4m,5m,6m,7m}，{4m,5m,6m,7m,8m}，……。

specifically, the base station may preset one or more sliding windows with different sizes, and the base station may respectively attempt reception using the preset sliding windows (for example, in order from small to large).

In this step, the merging and receiving the SR within the determined time interval includes:

and receiving the SR data in the determined time interval, calculating the sum of the SR data received in each time interval, and decoding the calculated sum. In particular, the decoding approach may follow the prior art, e.g., determining the received sum energy to determine whether there is an SR transmission.

When the base station does not correctly decode the SR, the method further comprises:

and step 302, the base station acquires a second transmission parameter of the SR, determines a time interval for receiving the SR according to the second transmission parameter of the SR, and combines and receives the SR in the determined time interval.

In this step, in order to ensure that the coverage performance of receiving the SR according to the second transmission parameter is not lower than the coverage performance of receiving the SR according to the first transmission parameter, the scheduling period in the first transmission parameter may be smaller than the scheduling period in the second transmission parameter, and/or the repeated transmission interval in the second transmission parameter may be smaller than the repeated transmission interval in the first transmission parameter, and/or the number of repetitions in the first transmission parameter may be smaller than the number of repetitions in the second transmission parameter.

In this step, the second transmission parameter and the first transmission parameter have the same parameter set, but have different values. The base station only acquires the first transmission parameter and the second transmission parameter of the SR at different times, and how the base station specifically acquires the second transmission parameter of the SR is the same as the process of acquiring the first transmission parameter of the SR, but only the specific values of the acquired transmission parameters are different.

In this step, how the base station determines the time interval for receiving the SR according to the second transmission parameter of the SR is the same as the process of determining the time interval for receiving the SR according to the first transmission parameter of the SR.

In this step, when the base station does not correctly decode the SR, before obtaining the second transmission parameter of the SR, the method further includes: the base station sends signaling indicating adjustment of transmission parameters of the SR to the terminal. At this time, the function of the base station to adjust the transmission parameters (i.e. determine the time interval for receiving the SR according to the second transmission parameters) is an optional or alternative function of the base station, that is, the function is enabled by the base station only if the base station sends signaling indicating to adjust the transmission parameters of the SR to the terminal. In the case that the base station enables the function, since the base station cannot know whether the UE transmits the SR with the first or second transmission parameter, in order to ensure SR transmission performance, the base station needs to attempt to combine and receive the SRs according to the first and second transmission parameters, respectively.

It should be noted that, if not specifically stated, the scheduling period is equivalent to the scheduling period size and the sliding window is equivalent to the sliding window size in the context of the present invention.

The process of the present invention is illustrated in detail by the following specific examples.

Fig. 4 is a schematic diagram of a method for transmitting an SR according to a first embodiment.

As shown in fig. 4, the repetitive transmission scheme of the coverage enhancement SR has the following features: occupying SR scheduling period P_SROne of all time interval blocks within the range, wherein each time interval block comprises N_SR(number of repetitions) consecutive time intervals. The transmission parameters related to the above-mentioned repetitive transmission scheme include: scheduling period, repetition number, and offset.

Specifically, in the initial stage of UE transmitting SR, as shown in the upper diagram of fig. 4, according to the first transmission parameter (including the scheduling period P)_SR,1Number of repetitions N_SR,1And offset) the transmit SR; when the duration of transmitting the SR exceeds the scheduling period P in the M first transmission parameters_SR,1Meanwhile, if the UE does not receive the uplink grant from the base station, as shown in the lower diagram of fig. 4, according to the second transmission parameter (including the scheduling period P)_SR,2Number of repetitions N_SR,2And offset) the transmission SR. Wherein the content of the first and second substances,scheduling period P in the second transmission parameter_SR,2Equal to the scheduling period P in the first transmission parameter_SR,1The number of repetitions in the second transmission parameter N_SR,2(equal to 6) greater than the number of repetitions N in the first transmission parameter_SR,1(equal to 4), the offset in the second transmission parameter is equal to the offset in the first transmission parameter (both occupying a first time interval chunk within the SR scheduling period size). The base station executes combined receiving in the range of the corresponding time continuous time interval blocks; first, the SR is received according to the first transmission parameter, and if the SR is not decoded correctly, the SR is received according to the second transmission parameter.

Fig. 5 is a schematic diagram of a method for transmitting an SR according to a second embodiment.

As shown in fig. 5, the repetitive transmission scheme of the coverage enhancement SR has the following features: occupying scheduling period P_SROne of all time interval blocks within the range, wherein each time interval block comprises N_SR(number of repetitions) number of times of discontinuity but uniform distribution in P_SRTime intervals of the range, and the interval between two adjacent time intervals is P_SR/N_SR. The transmission parameters related to the above-mentioned repetitive transmission scheme include: scheduling period, repetition number, and offset.

Specifically, in the initial stage of UE transmitting SR, as shown in the upper diagram of fig. 5, according to the first transmission parameter (including the scheduling period P)_SR,1Number of repetitions N_SR,1And offset) the transmit SR; when the duration of transmitting the SR exceeds the scheduling period P in the M first transmission parameters_SR,1Meanwhile, if the UE does not receive the uplink grant from the base station, as shown in the lower diagram of fig. 5, according to the second transmission parameter (including the scheduling period P)_SR,2Number of repetitions N_SR,2And offset) the transmission SR. Wherein the scheduling period P in the second transmission parameter_SR,2(equal to 24) greater than the scheduling period P in the first transmission parameter_SR,1(equal to 16), number of repetitions in second transmission parameter N_SR,2(equal to 6) greater than the number of repetitions N in the first transmission parameter_SR,1(equal to 4) and the offset in the second transmission parameter is equal to the offset in the first transmission parameter (both occupying SR scheduling period size)A first time-discontinuous time interval block within range). The base station executes combined receiving in the range of time interval blocks with discontinuous corresponding time; first, the SR is received according to the first transmission parameter, and if the SR is not decoded correctly, the SR is received according to the second transmission parameter.

Fig. 6 is a schematic diagram of a method for transmitting an SR according to a third embodiment.

As shown in fig. 6, the repetitive transmission scheme of the coverage enhancement SR has the following features: occupying scheduling period P_SROne of all time interval blocks within the range, wherein each time interval block comprises N_SR(number of repetitions) time-discrete and centrally distributed over P_SRTime interval of one scheduling region of the range, but within the scheduling region, the N_SRThe time intervals are evenly distributed and the interval between two adjacent time intervals is K_SR. The transmission parameters related to the above-mentioned repetitive transmission scheme include: a scheduling period, a number of repetitions, a repeated transmission interval, and a first offset and a second offset.

Specifically, in the initial stage of UE transmitting SR, as shown in the upper diagram of fig. 6, according to the first transmission parameter (including the scheduling period P)_SR,1Number of repetitions N_SR,1A repetition transmission interval and first and second offsets) to transmit an SR; when the duration of transmitting the SR exceeds the scheduling period P in the M first transmission parameters_SR,1Meanwhile, if the UE does not receive the uplink grant from the base station, as shown in the lower diagram of fig. 6, according to the second transmission parameter (including the scheduling period P)_SR,2Number of repetitions N_SR,2Repeated transmission interval, and first and second offsets) transmits the SR. Wherein the scheduling period P in the second transmission parameter_SR,2Equal to the scheduling period P in the first transmission parameter_SR,1The number of repetitions in the second transmission parameter N_SR,2(equal to 6) greater than the number of repetitions N in the first transmission parameter_SR,1(equal to 4), the repetition transmission interval in the second transmission parameter is equal to the repetition transmission interval in the first transmission parameter (equal to 4), and the first offset in the second transmission parameter is equal to the first offset in the first transmission parameter (both occupying the SR scheduling period size range)A first scheduling region within the enclosure), a second offset in the second transmission parameters is equal to a second offset in the first transmission parameters (both occupying first time discontinuous time interval partitions within the first scheduling region). The base station executes combined receiving in the range of time interval blocks with discontinuous corresponding time; first, the SR is received according to the first transmission parameter, and if the SR is not decoded correctly, the SR is received according to the second transmission parameter.

With the second and third embodiments, when a Hybrid Automatic Repeat Request (HARQ) -Acknowledgement Character (ACK) is a repeated transmission occupying a continuous time interval, the SR and the HARQ-ACK may not share the same number of repetitions since the SR at this time is a repeated transmission occupying a discontinuous time interval.

The SR coverage enhancement transmission methods corresponding to the second and third embodiments provide sufficient time diversity gain, reduce the number of SR repetitions required within the SR scheduling period, and thus reduce the corresponding SR control overhead. However, the SR coverage enhancement transmission method of the first embodiment has lower implementation complexity and smaller SR transmission delay; considering that the existing HARQ-ACK repeated transmission occupies continuous subframes or time intervals, the SR coverage enhancement transmission method of the first embodiment may be preferable in order to ensure the coverage enhancement SR and the HARQ-ACK to share the same set of repetition times, thereby ensuring the alignment of the coverage enhancement SR and the HARQ-ACK repeated subframe resources.

It should be noted that the above-mentioned SR retransmission method only relates to the determination of the time domain resource for repeatedly transmitting the SR, and the determination of the frequency domain/code domain resource for repeatedly transmitting the SR can continue to use the existing manner, that is, the base station configures the UE to repeat or continuously transmit the SR on which specific PUCCH format 1 resource through the RRC parameter (SR-PUCCH-resource index) of the higher layer. If the UE does not have any PUCCH format 1 resources valid for SR, a random access procedure is initiated.

Referring to fig. 7, the present invention further provides an apparatus for transmitting a scheduling request SR, which may be disposed in a terminal and at least include:

In the apparatus of the present invention, the first obtaining module is specifically configured to:

presetting a first transmission parameter of the SR; or acquiring a first transmission parameter or a second transmission parameter of the SR according to the received indication signaling from the base station; or acquiring the first transmission parameter or the second transmission parameter of the SR according to the coverage enhancement grade of the SR.

In the apparatus of the present invention, the first determining module is specifically configured to:

dividing all time intervals within a scheduling period in a first transmission parameter into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; determining a time interval P for transmitting the SR according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

scheduling period P in first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, the time interval for transmitting the SR being N consecutive in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, O_SRIs an offset in the first transmission parameter, and O_SRIs 0 to (P)_SR/N_SR-1) is any integer.

scheduling period P in first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a Determining a time interval for transmitting the SR to be K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

scheduling period or K in first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod P_SR＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRFor repeated transmission intervals in the first transmission parameter, O_SRIs an offset in the first transmission parameter, andO_SRis 0 to (P)_SR/N_SR-1) or (K)_SR-1) is any integer.

scheduling period or K in first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRFor repeated transmission intervals in the first transmission parameter, O_SRIs an offset in the first transmission parameter, and O_SRIs 0 to (K)_SR-1) is any integer.

scheduling period P in first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a Determining a time interval P for transmitting the SR according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs firstNumber of repetitions in transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

dividing all time intervals within a scheduling period in a first transmission parameter into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals with discontinuous time; wherein each time interval block comprises N_SRA time interval of K between two adjacent time intervals_SR(ii) a According to the formula TIN _1mod P_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, O_SR，1And O_SR，2Is an offset in the first transmission parameter, and O_SR，1Is 0 to

dividing all time intervals into K_SRGrouping time intervals; wherein, the time interval between two adjacent time intervals is K_SR(ii) a Determining a time interval for transmitting the SR to be K according to the offset in the first transmission parameter_SROne of the groups; wherein, K_SRIs a repeated transmission interval in the first transmission parameter.

dividing all time intervals into K_SRA group of the data; wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN mod K_SR＝O_SRDetermining a time interval for transmitting the SR;

where TIN is the number of the time interval for transmitting SR, O_SRIs an offset in the first transmission parameter, and O_SRIs 0 to (K)_SR-1) any integer, K_SRIs a repeated transmission interval in the first transmission parameter.

In the apparatus of the present invention, the first obtaining module is further configured to:

the duration of the SR sending exceeds the scheduling period of the M first transmission parameters, and the uplink grant from the base station is not received, so that the second transmission parameters of the SR are obtained; wherein the second transmission parameters comprise at least an offset, a scheduling period and/or a repeated transmission interval;

the first determining module is further configured to:

determining two or more time intervals for transmitting the SR according to the obtained second transmission parameter;

wherein M is a positive integer greater than or equal to 1.

the duration of the SR is sent to exceed the scheduling period in the M first transmission parameters, an uplink grant from the base station is not received, a signaling indicating the transmission parameters of the SR to be adjusted is received from the base station, and a second transmission parameter of the SR is obtained; wherein the second transmission parameter comprises a scheduling period and/or a repeated transmission interval.

Referring to fig. 8, the present invention further provides an apparatus for transmitting a scheduling request SR, which may be disposed in a base station and at least include:

In the apparatus of the present invention, the second determining module is specifically configured to:

dividing all time intervals within a scheduling period in a first transmission parameter into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; determining a time interval P for receiving the SR according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter.

scheduling period P in first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession; according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, the time interval for receiving the SR being N consecutive in time from the start of the first time interval_SRA time interval;

scheduling period P in first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval is divided into block packetsDraw N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a Determining a time interval for receiving the SR as K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

scheduling period or K in first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod P_SR＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, P_SRFor the scheduling period in the first transmission parameter, O_SRIs an offset in the first transmission parameter, and O_SRIs 0 to (P)_SR/N_SR-1) or (K)_SR-1) is any integer.

scheduling period P in first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval, O_SRIs an offset in the first transmission parameter, and O_SRIs 0 to (K)_SR-1) is any integer.

scheduling period P in first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a Determining a time interval P for receiving the SR according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks; wherein, P_SRFor the scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

dividing all time intervals within a scheduling period in a first transmission parameter into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals with discontinuous time; wherein each time interval block comprises N_SRA time interval of K between two adjacent time intervals_SR(ii) a According to the formula TIN _1mod P_SR＝O_SR,1K_SRN_SR+O_SR,2Determine the first timeInter-interval, N, determining that the time interval for receiving the SR is discontinuous in time from the first time interval_SRA time interval;

dividing all time intervals into K_SRGrouping time intervals; wherein, the time interval between two adjacent time intervals is K_SR(ii) a Determining a time interval for receiving the SR as K according to the offset in the first transmission parameter_SROne of the groups; wherein, K_SRIs a repeated transmission interval in the first transmission parameter.

dividing all time intervals into K_SRA group of the data; wherein each time interval group comprises time intervals with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TINmodK_SR＝O_SRDetermining a time interval for receiving the SR;

where TIN is the number of the time interval for receiving SR, O_SRIs an offset in the first transmission parameter, and O_SRIs 0 to (K)_SR-1) any integer, K_SRIs a repeated transmission interval in the first transmission parameter.

In the apparatus of the present invention, the receiving module is specifically configured to: and combining the received SRs according to the sliding window within the determined time interval.

In the apparatus of the present invention, the second obtaining module is further configured to:

when the SR is not decoded correctly, acquiring a second transmission parameter of the SR; wherein the second transmission parameters comprise at least an offset, a scheduling period and/or a repetition transmission interval

The second determination module is further to:

In the apparatus of the present invention, the second obtaining module is specifically configured to:

when the SR is not decoded correctly, sending a signaling for indicating the adjustment of the transmission parameter of the SR to the terminal to obtain a second transmission parameter of the SR; wherein the second transmission parameters include at least an offset, a scheduling period, and/or a repetition transmission interval.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

It should be noted that the above-mentioned embodiments are only for facilitating the understanding of those skilled in the art, and are not intended to limit the scope of the present invention, and any obvious substitutions, modifications, etc. made by those skilled in the art without departing from the inventive concept of the present invention are within the scope of the present invention.

Claims

1. A method of transmitting a scheduling request, SR, comprising:

the terminal acquires a first transmission parameter of the SR;

wherein the first transmission parameter at least comprises an offset, a scheduling period, a repetition number and/or a repeated transmission interval;

the scheduling period represents the time interval of the two adjacent combined receiving repeated transmission SRs of the base station; the repeated transmission interval represents the number of time intervals spaced between two adjacent time intervals when the repeated transmission of the SR is a time interval occupying discontinuous time; the number of repetitions represents the number of time intervals occupied by the repeated transmission of the SR;

the terminal determines a time interval for sending the SR according to the first transmission parameter of the SR, and repeatedly sends the SR within the determined time interval;

the terminal determines the time interval for sending the SR according to the first transmission parameter of the SR, and the method comprises the following steps:

dividing the time interval used in the scheduling period in the first transmission parameter into a plurality of time interval blocks according to the repetition times and/or the repeated transmission intervals in the first transmission parameter;

and determining the time interval for transmitting the SR to be one of a plurality of time interval blocks according to the offset in the first transmission parameter.

2. The method of claim 1, wherein the obtaining, by the terminal, the first transmission parameters of the SR comprises:

3. The method of claim 1, wherein the terminal determining the time interval for transmitting the SR according to the first transmission parameter comprises:

the terminal sends the scheduling period P in the first transmission parameter_SRAll of thereinTime interval division into P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval of time succession;

4. The method of claim 3, wherein the time interval for transmitting the SR is determined as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the terminal is according to a formula TIN _1modP_SR＝O_SRN_SRDetermining a first time interval, the time interval for which the transmission SR is determined to be N consecutive in time from the start of the first time interval_SRA time interval;

5. The method of claim 1, wherein the terminal determining the time interval for transmitting the SR according to the first transmission parameter of the SR comprises:

The terminal participates in the first transmissionAn offset in number determines a time interval for transmitting the SR to be K_SROr P_SR/N_SROne of the time interval blocks;

6. The method of claim 5, wherein the time interval for transmitting the SR is determined to be K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks includes:

the terminal is according to a formula TIN _1modP_SR＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

7. The method of claim 5, wherein the time interval for transmitting the SR is determined as K according to the offset in the first transmission parameter_SROne of the time interval blocks includes:

8. The method of claim 1, wherein the terminal determining the time interval for transmitting the SR according to the first transmission parameter of the SR comprises:

9. The method of claim 8, wherein the time interval for transmitting the SR is determined as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the terminal is according to a formula TIN _1modP_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval,

O_SR,1and O_SR,2Is an offset in the first transmission parameter, and the O_SR,1Is 0 to

Is any one of the integers, O_SR,2Is 0 to (K)_SR-1) is any integer.

10. The method of claim 1, wherein the terminal determining the time interval for transmitting the SR according to the first transmission parameter of the SR comprises:

the terminal divides all time intervals into K_SRGrouping time intervals;

11. The method of claim 10, wherein the determining the time interval for transmitting the SR as a function of the offset in the first transmission parameter is K_SROne of the packets includes:

12. The method of claim 1, wherein when the duration of the SR transmitted by the terminal exceeds the scheduling period of the M first transmission parameters and no uplink grant is received from the base station, the method further comprises:

wherein M is a positive integer greater than or equal to 1.

13. The method of claim 12, wherein the M is determined according to an instruction from the base station or according to a coverage enhancement level of the SR.

14. The method according to claim 12, wherein the scheduling period in the first transmission parameter is smaller than the scheduling period in the second transmission parameter, and/or wherein the repetition transmission interval in the second transmission parameter is smaller than the repetition transmission interval in the first transmission parameter, and/or wherein the first transmission parameter further comprises a repetition number, and wherein the repetition number in the first transmission parameter is smaller than the repetition number in the second transmission parameter.

15. The method of claim 12, wherein when the duration of the SR sent by the terminal exceeds the scheduling period of M first transmission parameters and no uplink grant is received from the base station, before the terminal acquires the second transmission parameter of the SR, the method further comprises:

16. A method of transmitting a scheduling request, SR, comprising:

a base station acquires a first transmission parameter of an SR; wherein the first transmission parameter at least comprises an offset, a scheduling period, a repetition number and/or a repeated transmission interval;

the base station determines a time interval for receiving the SR according to the obtained first transmission parameter, and combines and receives the SR in the determined time interval;

the base station determines a time interval for receiving the SR according to the obtained first transmission parameter, including:

and determining the time interval for receiving the SR as one of a plurality of time interval blocks according to the offset in the first transmission parameter.

17. The method of claim 16, wherein the base station determining a time interval for receiving the SR according to the first transmission parameter comprises:

18. The method of claim 17, wherein the time interval for transmitting the SR is determined as P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the base station is according to the formula TIN _1mod P_SR＝O_SRN_SRDetermining a first time interval, determining the connectionThe time interval for receiving SR is N continuous in time from the first time interval_SRA time interval;

19. The method of claim 16, wherein the base station determining the time interval for receiving the SR according to the first transmission parameter of the SR comprises:

the base station transmits the scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR；

20. The method of claim 19, wherein the time interval for receiving the SR is determined to be K according to an offset in a first transmission parameter_SROr P_SR/N_SROne of the time interval blocks includes:

21. The method of claim 19, wherein the determining the time interval for receiving the SR as a function of the offset in the first transmission parameter is K_SROne of the time interval blocks includes:

22. The method of claim 16, wherein the base station determining the time interval for receiving the SR according to the first transmission parameter of the SR comprises:

23. The method of claim 22, wherein the determining the time interval for receiving the SR is P according to the offset in the first transmission parameter_SR/N_SROne of the time interval blocks includes:

the base station modP according to the formula TIN _1_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

wherein TIN _1 is the number of the first time interval,

Is any one of the integers, O_SR,2Is 0 to (K)_SR-1) is any integer.

24. The method of claim 16, wherein the base station determining the time interval for receiving the SR according to the first transmission parameter of the SR comprises:

the base station divides all time intervals into K_SRGrouping time intervals;

wherein, K_SRIs that it isA repeating transmission interval in the first transmission parameter.

25. The method of claim 24, wherein the determining the time interval for receiving the SR is K according to the offset in the first transmission parameter_SROne of the packets includes:

wherein TIN is the number of the time interval for receiving the SR, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

26. The method of claim 24, wherein the combining the received SRs for the determined time interval comprises:

27. The method of claim 16, wherein when the base station does not correctly decode the SR, the method further comprises:

28. The method of claim 27, wherein when the base station does not correctly decode the SR, before the obtaining the second transmission parameter of the SR, further comprising:

29. The method according to claim 27, wherein the scheduling period in the first transmission parameter is smaller than the scheduling period in the second transmission parameter, and/or wherein the repetition transmission interval in the second transmission parameter is smaller than the repetition transmission interval in the first transmission parameter, and/or wherein the first transmission parameter further comprises a repetition number, and wherein the repetition number in the first transmission parameter is smaller than the repetition number in the second transmission parameter.

30. An apparatus for transmitting a scheduling request, SR, comprising at least:

the first acquisition module is used for acquiring a first transmission parameter of the SR; wherein the first transmission parameter at least comprises an offset, a scheduling period, a repetition number and/or a repeated transmission interval;

the transmitting module is used for repeatedly transmitting the SR within the determined time interval;

31. The apparatus of claim 30, wherein the first obtaining module is specifically configured to:

32. The apparatus of claim 30, wherein the first determining module is specifically configured to:

33. The apparatus of claim 32, wherein the first determining module is specifically configured to:

34. The apparatus of claim 30, wherein the first determining module is specifically configured to:

scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a Determining that the time interval for sending the SR is K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

35. The apparatus of claim 34, wherein the first determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1modP_SR＝O_SRDetermining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

36. The apparatus of claim 34, wherein the first determining module is specifically configured to:

wherein TIN _1 is the number of the first time interval, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRFor a repeat transmission interval in said first transmission parameter, O_SRIs an offset in the first transmission parameter, and the O_SRIs 0 to (K)_SR-1) is any integer.

37. The apparatus of claim 30, wherein the first determining module is specifically configured to:

scheduling period P in the first transmission parameter_SRAll time intervals in the time interval are divided into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval of time succession; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SR(ii) a According to the first transmissionThe offset in the parameters determines the time interval for transmitting the SR to be P_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

38. The apparatus of claim 37, wherein the first determining module is specifically configured to:

dividing all time intervals within a scheduling period in the first transmission parameter into P_SR/(K_SRN_SR) A scheduling area; wherein each scheduling region includes K_SRN_SRA time interval; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals with discontinuous time; wherein each time interval block comprises N_SRA time interval, and the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN _1modP_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for transmitting the SR being N discontinuous in time from the first time interval_SRA time interval;

39. The apparatus of claim 30, wherein the first determining module is specifically configured to:

40. The apparatus of claim 39, wherein the first determining module is specifically configured to:

41. The apparatus of claim 30, wherein the first obtaining module is further configured to:

the first determination module is further to:

wherein M is a positive integer greater than or equal to 1.

42. The apparatus of claim 41, wherein the first obtaining module is specifically configured to:

43. An apparatus for transmitting a scheduling request, SR, comprising at least:

the second acquisition module is used for acquiring the first transmission parameter of the SR; wherein the first transmission parameter at least comprises an offset, a scheduling period, a repetition number and/or a repeated transmission interval; the scheduling period represents the time interval of the two adjacent combined receiving repeated transmission SRs of the base station; the repeated transmission interval represents the number of time intervals spaced between two adjacent time intervals when the repeated transmission of the SR is a time interval occupying discontinuous time; the number of repetitions represents the number of time intervals occupied by the repeated transmission of the SR;

the receiving module is used for combining and receiving the SR within the determined time interval;

44. The apparatus of claim 43, wherein the second determining module is specifically configured to:

45. The apparatus of claim 44, wherein the second determining module is specifically configured to:

46. The apparatus of claim 43, wherein the second determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and two adjacent timeThe time interval between intervals is K_SROr P_SR/N_SR(ii) a Determining a time interval for receiving the SR as K according to the offset in the first transmission parameter_SROr P_SR/N_SROne of the time interval blocks; wherein, P_SRIs a scheduling period, N, in the first transmission parameter_SRIs the number of repetitions in the first transmission parameter, K_SRIs a repeated transmission interval in the first transmission parameter.

47. The apparatus of claim 46, wherein the second determining module is specifically configured to:

scheduling period P in the first transmission parameter_SROr K_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA time interval with discontinuous time, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1modP_SR＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

48. The apparatus of claim 46, wherein the second determining module is specifically configured to:

transmitting the scheduling period or K in the first transmission parameter_SRN_SRAll time intervals in are divided into K_SROr P_SR/N_SRPartitioning time intervals; wherein each time interval block comprises N_SRA timeDiscontinuous time intervals, and the time interval between two adjacent time intervals is K_SROr P_SR/N_SR(ii) a According to the formula TIN _1mod (K)_SRN_SR)＝O_SRDetermining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

49. The apparatus of claim 43, wherein the second determining module is specifically configured to:

50. The apparatus of claim 49, wherein the second determining module is specifically configured to:

dividing all time intervals within a scheduling period in the first transmission parameter into P_SR/(K_SRN_SR) A scheduling area; wherein each oneThe scheduling region includes K_SRN_SRA time interval; dividing all time intervals in each scheduling region into K_SRPartitioning time intervals with discontinuous time; wherein each time interval block comprises N_SRA time interval, and the time interval between two adjacent time intervals is K_SR(ii) a According to the formula TIN _1modP_SR＝O_SR,1K_SRN_SR+O_SR,2Determining a first time interval, the time interval for receiving the SR being N discontinuous in time from the first time interval_SRA time interval;

51. The apparatus of claim 43, wherein the second determining module is specifically configured to:

52. The apparatus of claim 51, wherein the second determining module is specifically configured to:

53. The apparatus of claim 52, wherein the receiving module is specifically configured to:

54. The apparatus of claim 43, wherein the second obtaining module is further configured to:

the second determination module is further to:

55. The apparatus of claim 54, wherein the second obtaining module is specifically configured to: