Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. EP3151601 - INFORMATION SENDING METHOD, INFORMATION RECEIVING METHOD, APPARATUS AND SYSTEM

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]
Claims

1. 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.


  2. The method according to claim 1, wherein the sending end using the DCI/UCI information to describe the information about time that the unlicensed carrier is occupied comprises one of the following:

the sending end using the DCI information to describe information about time that the unlicensed carrier is occupied by the sending end; and

the sending end using the DCI/UCI information to describe information about time that the unlicensed carrier is occupied by other sending ends.


  3. The method according to claim 2, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied by the sending end comprises:

under a situation that the sending end is a base station, the sending end simultaneously sending a Primary Synchronization Signal, PSS,/ Secondary Synchronization Signal, SSS, and a Physical Broadcast Channel, PBCH, and a demodulation signal Cell-specific Reference Signal, CRS, or a Demodulation Reference Signal, DMRS, needed by a Physical Control Format Indicator Channel, PCFICH, and a Physical Downlink Control Channel, PDCCH, / an Enhanced PDCCH, ePDCCH, in the unlicensed carrier; or

the sending end ensuring that the unlicensed carrier is strictly aligned to the licensed carrier of the sending end; or

the sending end sending the DCI information in the unlicensed carrier according to timing of the licensed carrier of the sending end.


  4. The method according to claim 3, wherein the sending end sending the DCI information in the unlicensed carrier according to the timing of the licensed carrier of the sending end comprises:

under a situation that there are a plurality of licensed carriers of a receiving end, the sending end in the unlicensed carrier being strictly aligned to timing of at least one of the plurality of licensed carriers.


  5. The method according to claim 4, wherein the sending end in the unlicensed carrier being strictly aligned to the timing of at least one of the plurality of licensed carriers comprises:

the sending end in the unlicensed carrier being strictly aligned to timing of a carrier of a minimum frequency point possessed by the sending end.


  6. The method according to any one of claims 1-5, wherein the sending end sending the DCI/UCI information through the licensed carrier or the unlicensed carrier comprises:

the sending end sending the DCI/UCI information in a downlink carrier or an uplink carrier of the licensed carrier or the unlicensed carrier.


  7. The method according to claim 6, wherein the sending end sending the DCI information through the licensed carrier or the unlicensed carrier comprises:

the sending end sending the DCI information through a PDCCH/ePDCCH of the licensed carrier or the unlicensed carrier or on an agreed resource.


  8. The method according to claim 6, wherein the method further comprises:

under a situation that an uplink and a downlink share the same one carrier, the information about time comprising downlink sending time occupied by the sending end and uplink receiving time of the sending end; or the information about time comprising the downlink sending time occupied by the sending end and not comprising the uplink receiving time of the sending end; or the information about time comprising the downlink sending time occupied by the sending end and partial uplink receiving time of the sending end.


  9. The method according to claim 1, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied comprises at least one of the following:

the sending end using a PDCCH in first one, two, three or four OFDM symbols of a subframe to bear the information about time;

the sending end using a PDCCH in an OFDM symbol of a second slot of a subframe to bear the information about time; and

the sending end using a preset resource location of a subframe to bear the information about time.


  10. The method according to claim 1, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied further comprises:

the sending end indicating a location for bearing the information about time through a PCFICH channel.


  11. The method according to claim 1, wherein the sending end sending the DCI/UCI information through the licensed carrier or the unlicensed carrier comprises:

under a situation that the sending end is a base station, the sending end using an ePDCCH channel in a Physical Resource Block, PRB, at an agreed carrier location to send the DCI.


  12. The method according to claim 1, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied comprises:

the sending end indicating, in a current subframe, whether a next subframe will be used by the sending end.


  13. The method according to claim 1, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied comprises:

the sending end using the DCI information according to a preset DCI format to bear the information about time that the unlicensed carrier is occupied.


  14. The method according to claim 13, wherein the preset DCI format comprises at least one of the following: DCI format 3, 3A, 1C and a DCI format corresponding to a unique bit number.
  15. The method according to claim 1, wherein the sending end sending the DCI/UCI information through the licensed carrier or the unlicensed carrier comprises:

the sending end using an agreed Radio Network Temporary Identifier, RNTI, to scramble the DCI information, and sending the DCI information in a common search space of a PDCCH/ePDCCH or in an agreed resource.


  16. The method according to any one of claims 1-15, 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.
  17. The method according to claim 16, 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.


  18. The method according to claim 17, 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;

the information about time describing the number of subframes which are continuously occupied starting from a certain frame; and

the information about time describing patterns of subframes which will be occupied.


  19. The method according to claim 18, wherein the information about time describing the pattern of the subframes which will be occupied comprises:

if the maximum number of subframes which are allowable to be occupied at one time is N and N is less than or equal to the bit number of DCI, using first N bits in DCI to describe subframes occupied by the sending end or other sending ends in a bitmap mode.


  20. The method according to claim 16, wherein the information about time further comprises:

information about frequency occupied in the unlicensed carrier occupied by the sending end, wherein the information about frequency comprises at least one of the following: Physical Resource Block, PRB, information, subcarrier information and bandwidth information.


  21. The method according to any one of claims 1-15, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied comprises:

the sending end sending the DCI information describing the information about time in each occupied subframe.


  22. The method according to claim 21, wherein the sending end sending the DCI information describing the information about time in each occupied subframe comprises:

the DCI information describing information about current remaining occupied subframes.


  23. The method according to any one of claims 1-15, wherein the sending end using the DCI information to describe the information about time that the unlicensed carrier is occupied comprises:

the sending end sending the DCI information describing the information about time in a first occupied sub frame.


  24. The method according to claim 23, wherein contents of the DCI information comprise at least one of the following:

a bit indicating a mode of describing the information about time that the unlicensed carrier is occupied in the DCI information; and

a bit describing the information about time that the unlicensed carrier is occupied.


  25. The method according to any one of claims 1-24, wherein contents of the DCI information comprise at least one of the following:

a bit indicating a resource seizure mode described in the DCI, wherein the resource seizure mode comprises a bitmap mode or a continuous seizure mode; and

a bit indicating a resource seizure moment described in the DCI, wherein the resource seizure moment comprises starting from a current subframe or starting from a next subframe.


  26. The method according to any one of claims 1-24, wherein the sending end sending the DCI/UCI information through the licensed carrier or the unlicensed carrier comprises:

using different common RNTIs to indicate a location of a bit describing a resource seizure mode in the DCI, wherein the resource seizure mode comprises a bitmap mode or a continuous seizure mode; and/or

using different common RNTIs to indicate a location of a bit describing a resource seizure moment in the DCI, wherein the resource seizure moment comprises starting from a current subframe or starting from a next subframe.


  27. The method according to any one of claims 1-24, wherein the information about time that the unlicensed carrier is occupied refers to information describing length of time that the unlicensed carrier is seized by the sending end in order to execute data transmission for one time.
  28. The method according to any one of claims 1-24, wherein the sending end using the DCI/UCI information to describe the information about time that the unlicensed carrier is occupied comprises:

the sending end using all bits or part of bits in the DCI/UCI to describe the information about time that the unlicensed carrier is occupied.


  29. The method according to any one of claims 1-28, wherein the sending end comprises:

a base station, a relay station and a user equipment, UE.


  30. 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.


  31. The method according to claim 30, wherein, after the receiving end monitoring the DCI/UCI information of the unlicensed carrier, the method further comprises:

the receiving end determining a use policy of the unlicensed carrier of receiving end according to the information about time.


  32. The method according to claim 31, wherein the receiving end determining the use policy of the unlicensed carrier of receiving end according to the information about time comprises at least one of the following:

the receiving end determining whether to continuously occupy the unlicensed carrier according to the information about time;

the receiving end determining a scheduling policy of subordinate UE according to the information about time;

when the receiving end needs to use the unlicensed carrier, determining that the unlicensed carrier is not used by other base stations according to the information about time, or the unlicensed carrier is used by other base stations but the use of the unlicensed carrier by the receiving end is not influenced; and

under a situation that the receiving end receives information about time, forwarded by subordinate UE or a small cell, that the unlicensed carrier is occupied by a proximal base station, the receiving end determining whether a beamforming technology is used for the UE or the small cell to transmit data according to the information about time.


  33. The method according to claim 30, wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises:

under a situation that the receiving end is a base station, the receiving end respectively performing synchronization at different licensed frequency points and acquiring a cell identity of the sending end which sends the DCI; and the receiving end receiving a Physical Control Format Indicator Channel, PCFICH, and a Physical Downlink Control Channel, PDCCH, according to the cell identity, or not receiving the PCFICH but directly receiving an Enhanced PDCCH, ePDCCH, to acquire the DCI; or

under a situation that the receiving end is UE, the receiving end respectively performing synchronization at different licensed frequency points and acquiring a cell identity of the sending end which sends the DCI; and the receiving end receiving a PCFICH and a PDCCH according to the cell identity, or not receiving the PCFICH but directly receiving an ePDCCH to acquire the DCI, and informing a base station, to which the UE belongs, about the DCI through UCI or Radio Resource Control, RRC, signaling.


  34. The method according to claim 30, wherein the receiving end monitoring the DCI information of the unlicensed carrier comprises:

the receiving end receiving a Primary Synchronization Signal, PSS, / Secondary Synchronization Signal, SSS, and a Physical Broadcast Channel, PBCH, of a sending-end base station, and then receiving a PCFICH and a PDCCH/ePDCCH; or

the receiving end being synchronized with an licensed carrier; the receiving end determining a location of the DCI sent in the unlicensed carrier according to timing of the licensed carrier; and the receiving end receiving the DCI information according to the location of the DCI.


  35. The method according to claim 30, wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises at least one of the following:

the receiving end receiving the information about time through a PDCCH in first one, two, three or four OFDM symbols of a subframe;

the receiving end receiving the information about time through a PDCCH in an OFDM symbol of a second slot of a subframe; and

the receiving end receiving the information about time through a PDCCH/ePDCCH at a preset resource location of a subframe.


  36. The method according to claim 30, wherein the receiving end monitoring the DCI information of the unlicensed carrier comprises:

the receiving end receiving the information about time on a PDCCH/ePDCCH of the unlicensed carrier or on an agreed resource according to an agreed DCI format.


  37. The method according to claim 36, wherein, before the receiving end receiving the information about time on the PDCCH/ePDCCH or on the agreed resource according to the agreed DCI format, the method further comprises:

the receiving end determining information about time that the unlicensed carrier is occupied by other stations according to a bit in the DCI; or

the receiving end determining a location and/or meaning of a bit describing the information about time in the DCI according to a bit in the DCI.


  38. The method according to claim 30, wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises:

if the receiving end receives the DCI/UCI information in an uplink carrier of the unlicensed carrier, determining that the DCI/UCI information describes information about time that the unlicensed carrier is occupied by other base stations proximal to the sending end.


  39. The method according to claim 30, wherein the receiving end monitoring the DCI/UCI information of the unlicensed carrier comprises:

the receiving end determining an occupation situation of the unlicensed carrier in a mode of monitoring the DCI/UCI information subframe by subframe in the unlicensed carrier; or

after other stations occupy a first subframe of the unlicensed carrier to receive the DCI/UCI information to obtain the information about time that the unlicensed carrier is occupied, the receiving end not monitoring the DCI information until occupation of the unlicensed carrier is ended.


  40. The method according to any one of claims 30-39, wherein the information about time that the unlicensed carrier is occupied refers to information describing length of time that the unlicensed carrier is seized by the sending end in order to execute data transmission for one time.
  41. The method according to any one of claims 30-39, wherein the receiving end comprises:

a base station, a relay station and a UE.


  42. 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.


  43. The apparatus according to claim 42, 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.
  44. The apparatus according to claim 43, 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.


  45. The apparatus according to claim 44, 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;

the information about time describing the number of subframes which are continuously occupied starting from a certain frame; and

the information about time describing patterns of subframes which will be occupied.


  46. The apparatus according to claim 42, wherein the information about time further comprises:

information about frequency occupied in the unlicensed carrier occupied by the sending end, wherein the information about frequency comprises at least one of the following: Physical Resource Block, PRB, information, subcarrier information and bandwidth information.


  47. 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.


  48. The apparatus according to claim 47, wherein the monitoring module comprises:

an acquisition unit configured to, under a situation that the receiving end is a base station, respectively perform synchronization at different licensed frequency points and acquire a cell identity of the sending end which sends the DCI; and the receiving end receives a Physical Control Format Indicator Channel, PCFICH, and a Physical Downlink Control Channel, PDCCH, according to the cell identity, or not receive the PCFICH but directly receive an Enhanced PDCCH, ePDCCH, to acquire the DCI; or under a situation that the receiving end is UE, respectively perform synchronization at different licensed frequency points and acquire a cell identity of the sending end which sends the DCI; and the receiving end receives a PCFICH and a PDCCH according to the cell identity, or not receive the PCFICH but directly receive an ePDCCH to acquire the DCI, and inform a base station, to which the UE belongs, about the DCI through UCI or Radio Resource Control, RRC, signaling.


  49. A system for sending information, comprising the apparatus for sending information according to any one of claims 42-46, and further comprising the apparatus for receiving information according to claim 47 or 48.