Information sending method, information receiving method, apparatus and system

A method for receiving information, comprising:

• a receiving end monitoring Downlink Control Information, DCI, / Uplink Control Information, UCI, of an unlicensed carrier, wherein the DCI/UCI information is used by the receiving end to acquire information about time that the unlicensed carrier is occupied by a proximal sending end;
• wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises at least one of the following:
• the receiving end acquiring the information about time through a PDCCH in first one, two, three or four OFDM symbols of a subframe;
• the receiving end acquiring the information about time through a PDCCH in an OFDM symbol of a second slot of a subframe;
• and
• the receiving end acquiring the information about time borne at a preset resource location of a subframe;
• or
• wherein the receiving end monitoring the DCI information of the unlicensed carrier further comprises:
• the receiving end being indicated a location for bearing the information about time through a PCFICH channel by the proximal sending end;
• or
• wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises:
• under a situation that the proximal sending end is a base station, the DCI information is sent from the proximal sending end using an ePDCCH channel in a Physical Resource Block, PRB, at an agreed carrier location;
• and
• wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises:
• the receiving end being indicated, in a current subframe, whether a next subframe will be used by the proximal sending end.

An apparatus for sending information located at a sending end, comprising:

• a description module configured to use DCI/UCI information to describe information about time that an unlicensed carrier is occupied;
• and
• a sending module configured to send the DCI/UCI information through an licensed carrier or the unlicensed carrier;
• wherein the sending module is configured to use the DCI information to describe the information about time that the unlicensed carrier is occupied by means of at least one of the following:
• using a PDCCH in first one, two, three or four OFDM symbols of a subframe to bear the information about time;
• using a PDCCH in an OFDM symbol of a second slot of a subframe to bear the information about time;
• and
• using a preset resource location of a subframe to bear the information about time;
• or
• wherein the sending module is further configured to indicate a location for bearing the information about time through a PCFICH channel;
• or
• wherein under a situation that the sending end is a base station, the sending module is configured to use an ePDCCH channel in a Physical Resource Block, PRB, at an agreed carrier location to send the DCI;
• and
• wherein the sending module is configured to indicate, in a current subframe, whether a next subframe will be used by the sending end.

An apparatus for receiving information located at a receiving end, comprising:

• a monitoring module configured to monitor DCI/UCI information of an unlicensed carrier, wherein the DCI/UCI information is used by the receiving end to acquire information about time that the unlicensed carrier is occupied by a proximal sending end;
• wherein the monitoring module is configured to monitor the DCI/UCI information of the unlicensed carrier by means of at least one of the following:
• acquiring the information about time through a PDCCH in first one, two, three or four OFDM symbols of a subframe;
• acquiring the information about time through a PDCCH in an OFDM symbol of a second slot of a subframe;
• and
• acquiring the information about time borne at a preset resource location of a subframe;
• or
• wherein the monitoring module is further configured to be indicated a location for bearing the information about time through a PCFICH channel by the proximal sending end;
• or
• wherein under a situation that the proximal sending end is a base station, the monitoring module is configured to monitor the DCI information, sent from the proximal sending end, using an ePDCCH channel in a Physical Resource Block, PRB, at an agreed carrier location;
• and
• wherein the monitoring module is configured to be indicated, in a current subframe, whether a next subframe will be used by the proximal sending end.

A method for sending information, comprising:

• a sending end using Downlink Control Information, DCI, / Uplink Control Information, UCI, to describe information about time that an unlicensed carrier is occupied;
• and
• the sending end sending the DCI/UCI information through a licensed carrier or the unlicensed carrier;
• wherein the information about time is described by taking a subframe as a unit, or described by taking an OFDM symbol as a unit or described by taking a slot as a unit;
• wherein the information about time is described by taking the subframe as the unit, or described by taking the OFDM symbol as the unit or described by taking the slot as the unit comprises:
• the information about time describing a subframe, an OFDM symbol or a slot which will be occupied by the sending end or other sending ends,
• wherein the information about time describing the subframe which will be occupied by the sending end or other sending ends comprises at least one of the following:
• the information about time describing that a plurality of continuous subframes starting from a current subframe are occupied;
• and
• the information about time describing patterns of subframes which will be occupied.

An apparatus for sending information located at a sending end, comprising:

• a description module configured to use DCI/UCI information to describe information about time that an unlicensed carrier is occupied;
• and
• a sending module configured to send the DCI/UCI information through an licensed carrier or the unlicensed carrier;
• wherein the information about time is described by taking a subframe as a unit, or described by taking an OFDM symbol as a unit or described by taking a slot as a unit,
• wherein the information about time being described by taking the subframe as the unit, or described by taking the OFDM symbol as the unit or described by taking the slot as the unit comprises:
• the information about time describing a subframe, an OFDM symbol or a slot which will be occupied by the sending end or other sending ends,
• wherein the information about time describing the subframe which will be occupied by the sending end or other sending ends comprises at least one of the following:
• the information about time describing that a plurality of continuous subframes starting from a current subframe are occupied;
• and
• the information about time describing patterns of subframes which will be occupied.