WO2017016305A1 - 数据传输方法、系统、用户设备及基站 - Google Patents

数据传输方法、系统、用户设备及基站 Download PDF

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Publication number
WO2017016305A1
WO2017016305A1 PCT/CN2016/083919 CN2016083919W WO2017016305A1 WO 2017016305 A1 WO2017016305 A1 WO 2017016305A1 CN 2016083919 W CN2016083919 W CN 2016083919W WO 2017016305 A1 WO2017016305 A1 WO 2017016305A1
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Prior art keywords
channel
scheduled
scheduled ues
allocated
resource allocation
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PCT/CN2016/083919
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English (en)
French (fr)
Inventor
李娜
童辉
陈卓
刘光毅
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中国移动通信集团公司
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Publication of WO2017016305A1 publication Critical patent/WO2017016305A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access

Definitions

  • the present disclosure relates to a wireless communication technology, and in particular, to a data transmission method, system, user equipment (UE, User Equipment), and a base station.
  • UE user equipment
  • a base station a base station
  • LTE Long Term Evolution
  • LAA technology is to aggregate unlicensed frequency bands into LTE networks based on the LTE network platform.
  • the LAA solution is mainly applied to the small station scenario, that is, the LTE network-related spectrum is used as the primary carrier, and the unlicensed spectrum is used as the secondary carrier.
  • the primary and secondary carriers jointly provide services for users in the form of carrier aggregation, and the available bandwidth increases the user data. Rate requirements are guaranteed and such a system can be referred to as an LAA system.
  • the data transmission on the unlicensed carrier must meet the regulatory requirements of the unlicensed band.
  • the LBT (listen before talk) technology must be used to ensure that the channel is idle before transmitting data.
  • each UE needs to perform channel monitoring before transmitting uplink data, and can only send uplink data when the channel is idle, so that multiple UEs cannot be in continuous uplink.
  • the situation of uninterrupted transmission on the frame which greatly reduces the throughput performance of the LAA system.
  • the embodiments of the present disclosure provide a data transmission method, system, UE, and base station.
  • the embodiment of the present disclosure provides a data transmission method, including:
  • the first UE receives scheduling related information of the broadcast; the scheduling related information includes resource allocation information of all scheduled UEs of the current time;
  • the first UE uses the resource allocation information of all the scheduled UEs in the current time, and combines the LBT mechanism to determine that the allocated resources can be used, and sends data on the allocated resources.
  • the utilizing the resource allocation information of all the scheduled UEs in the current time, and combining the LBT mechanism, determining that the allocated resources can be used including:
  • the allocated resources can be used.
  • the utilizing the resource allocation information of all the scheduled UEs in the current time, and combining the LBT mechanism, determining that the allocated resources can be used including:
  • the first UE monitors whether the channel corresponding to the resource allocated by itself is idle, and determines that the allocated resource can be used when the channel is idle.
  • the scheduling related information further includes a channel listening duration of the first UE
  • the first UE monitors whether a channel corresponding to the resource allocated by itself is idle during the channel listening duration.
  • the scheduling related information of the broadcast is broadcasted by a physical downlink control channel (PDCCH, Physical Downlink Control Channel) or a control frame broadcast of a medium access control (MAC) layer.
  • PDCCH Physical Downlink Control Channel
  • MAC medium access control
  • the method further includes:
  • the first UE is the other one of all scheduled UEs in this time.
  • the channel occupation information is transmitted on the reserved resources in the resources allocated by the UE.
  • the channel occupation information is a preamble code.
  • the embodiment of the present disclosure further provides a data transmission method, including:
  • the base station allocates resources for all scheduled UEs
  • the base station broadcasts the scheduling related information of the current time; the scheduling related information includes resource allocation information of all the scheduled UEs of the current time; the resource allocation information of all the scheduled UEs of the current time is used by the scheduled UE to determine whether the allocated resources are Can be used.
  • the scheduling related information of the broadcast is:
  • the current scheduling related information is broadcast by the PDCCH indication or the control frame of the MAC layer.
  • the method further includes:
  • the base station informs other stations around itself that the data cannot be transmitted within a specified time period; the specified time period is the time period for scheduling the UE.
  • the base station After the base station broadcasts the current scheduling related information, the short interframe space (SIFS, short InterFrame Space), the base station is notified that the other station cannot transmit data within a specified time period.
  • SIFS short Interframe space
  • the base station sends a Clear To Send (CTS) frame to notify other stations around itself that the data cannot be sent within a specified time period.
  • CTS Clear To Send
  • the scheduling related information further includes: a channel listening duration of each UE; the channel listening duration is used to determine whether a channel corresponding to a resource allocated by the UE for itself is idle during the channel listening duration.
  • the embodiment of the present disclosure further provides a UE, including: a receiving unit, a resource determining unit, and a first sending unit;
  • the receiving unit is configured to receive scheduling related information of the broadcast; the scheduling related information includes resource allocation information of all scheduled UEs of the current time;
  • the resource determining unit is configured to use the resource allocation information of all the scheduled UEs in the current time, and combine the LBT mechanism to determine that the allocated resource can be used, triggering the sending unit;
  • the first sending unit is configured to send data on the allocated resource after receiving the trigger of the resource determining unit.
  • the first sending unit is further configured to send a channel on a reserved resource in resources allocated by other scheduled UEs in all scheduled UEs in the current scheduled period. Use information.
  • the embodiment of the present disclosure further provides a base station, including: a resource allocation unit and a second sending unit;
  • the resource allocation unit is configured to allocate resources for all scheduled UEs
  • the second sending unit is configured to broadcast current scheduling related information; the scheduling related information includes resource allocation information of all scheduled UEs in this time; and resource allocation information of all scheduled UEs is used for scheduling The UE determines whether the allocated resources are available.
  • the second sending unit is further configured to notify other stations around the base station where the base station is located that the data cannot be sent within a specified time period; and the specified time period is the time period for scheduling the UE.
  • the embodiment of the present disclosure further provides a data transmission system, including: a base station and a first UE;
  • the base station is configured to allocate resources to all the scheduled UEs; and broadcast the current scheduling related information; the scheduling related information includes resource allocation information of all scheduled UEs.
  • the first UE is configured to receive scheduling related information of the broadcast, and use the resource allocation information of all the scheduled UEs in the current time, and combine the LBT mechanism to determine that the allocated resources can be used, and send data on the allocated resources.
  • the base station allocates resources for all the scheduled UEs; and broadcasts the scheduling related information of the current time; after receiving the broadcast scheduling related information, the first UE uses the The resource allocation information of all scheduled UEs in the scheduling related information is combined with the LBT mechanism to determine that the allocated resources can be used, and the data is sent on the allocated resources, because the UE obtains the resources of all the scheduled UEs.
  • assigning information it is possible to know what type of data the channel is occupied, so that it is possible to accurately determine whether or not this data transmission will be affected.
  • FIG. 1 is a schematic diagram of a multi-user uplink data transmission process in an LAA system in the related art
  • FIG. 2 is a schematic flowchart of a data transmission method on a UE side in at least one embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a data transmission method on a base station side in at least one embodiment of the present disclosure
  • FIG. 4 is a schematic flow chart of a data transmission method in at least one embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a data transmission process according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of an application scenario of an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a multi-user uplink data transmission process in at least another embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a multi-user uplink data transmission process in at least another embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a UE in at least another embodiment of the present disclosure.
  • Figure 10 is a schematic structural diagram of a base station in at least another embodiment of the present disclosure.
  • Figure 11 is a block diagram showing the structure of a data transmission system in at least another embodiment of the present disclosure.
  • the multi-user uplink transmission process may cause multiple UEs to be in consecutive uplink subframes due to the influence of the LBT technology. Uninterrupted transmission.
  • the main idea of the LBT technology is that the station that needs to transmit data first monitors whether there is a carrier on the medium (ie, whether the channel is idle) to determine whether another station is transmitting data. If the media is idle (ie, the channel is idle), the site can transmit data; otherwise, the site will evade for a while before trying.
  • the LBT technology is also applied in the uplink data transmission process of the LAA system, that is, the UE performs carrier sensing before transmitting the uplink data, and the uplink data can be sent only when the channel is idle.
  • the uninterrupted transmission of multiple UEs on consecutive uplink subframes cannot be achieved.
  • the channel is considered to be busy, so that data is not transmitted on the designated subframe.
  • the LAA eNB LAA evolved base station
  • the LAA eNB is uplinked when uplink resources are allocated for UE 1.
  • the uplink resource allocated for the UE 2 is the uplink subframe 2
  • the uplink resource allocated for the UE 3 is the uplink subframe 3.
  • the UE 2 monitors that the channel is occupied (because UE1 is uploading uplink data in the uplink subframe 1), the UE 2 does not transmit data on the allocated uplink subframe 2.
  • UE 3 For the same reason as UE 2, if UE 3 monitors that the channel is occupied (because UE 2 is uploading uplink data in uplink subframe 2), UE 3 will not be in the allocated uplink subframe 3 The data is sent up. Since the previous subframe is occupied by the data transmission of other scheduled UEs, UE 2 and UE 3 will not transmit data in the specified subframe, which will greatly reduce the throughput performance of the LAA system.
  • the shaded hatched portion indicates an uplink subframe.
  • the base station allocates resources for all scheduled UEs; and broadcasts the current scheduling related information; the scheduling related information includes resource allocation information of all scheduled UEs of the current time.
  • the first UE uses the resource allocation information of all the scheduled UEs in the current time, and combines the LBT mechanism to determine that the allocated resources can be used, and sends data on the allocated resources.
  • a data transmission method for application to a UE. As shown in FIG. 2, the method includes the following steps:
  • Step 201 The first UE receives the scheduling related information of the broadcast; the scheduling related information includes the Resource allocation information of all scheduled UEs;
  • the scheduling related information of the broadcast may be broadcasted by a PDCCH indication or a control frame of a MAC layer.
  • the scheduling related information may further include: location information of the scheduled UE and/or an identity (ID, IDentity) of the scheduled UE.
  • the ID of the UE may be a Temporary Mobile Subscriber Identity (TMSI), an International Mobile Equipment Identity (IMEI), or an International Mobile Subscriber Identification Number (IMSI). Wait.
  • TMSI Temporary Mobile Subscriber Identity
  • IMEI International Mobile Equipment Identity
  • IMSI International Mobile Subscriber Identification Number
  • Step 202 The first UE uses the resource allocation information of all the scheduled UEs in the current time, and combines the LBT mechanism to determine that the allocated resources can be used, and send data on the allocated resources.
  • the first UE monitors whether a channel corresponding to a resource allocated by itself is idle, determines that the channel is idle, determines that the allocated resource can be used, and sends data on the allocated resource;
  • the allocated resources can be used.
  • the allocated resources may be occupied by the transmission of the WIFI data, and therefore, may not be allocated. Send upstream data on the resource.
  • the scheduling related information may further include: a channel listening duration;
  • the first UE monitors whether the channel corresponding to the resource allocated by itself is idle during the channel listening duration.
  • the channel listening duration is determined by the base station.
  • the base station can determine the listening duration of the channel as needed.
  • the first UE may determine, according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, whether the channel is used by the other The data transmission of the scheduled UE is occupied.
  • the first UE may determine, according to resource allocation information of other scheduled UEs, IDs of other scheduled UEs, whether the channel is used by the other scheduled UEs. The data transfer is occupied.
  • the scheduling related information further includes: location information of the scheduled UE and an ID of the scheduled UE
  • the first UE may be configured according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, and other The ID of the UE is scheduled to determine whether the channel is occupied by data transmission of the other scheduled UEs.
  • the method may further include:
  • the first UE sends channel occupation information on the reserved resources in the resources allocated by the other scheduled UEs of all the scheduled UEs, so that the first UE is in the present In the subsequent process within the secondary scheduling period, there is no need to listen to the channel again.
  • the channel occupation information may be a preamble code.
  • the embodiment further provides a data transmission method, which is applied to a base station. As shown in FIG. 3, the method includes the following steps:
  • Step 301 The base station allocates resources for all scheduled UEs.
  • the embodiments of the present disclosure do not limit the specific processing procedure for allocating resources to all scheduled UEs.
  • the base station first knows how much data each UE needs to transmit in all the scheduled UEs, and then according to the amount of data that each UE needs to transmit, and combines its own resources to all the scheduled UEs. resource allocation.
  • Step 302 The base station broadcasts the scheduling related information of the current time.
  • the scheduling related information includes resource allocation information of all scheduled UEs this time.
  • the base station may broadcast the current scheduling related information by using a PDCCH indication or a control frame of the MAC layer.
  • the resource allocation information of all the scheduled UEs of the current time is used by the scheduled UE to determine whether the allocated resources are available.
  • the scheduling related information may further include: a channel listening duration of each UE; the channel listening duration is used to determine whether a channel corresponding to a resource allocated by the UE for itself is idle during the channel listening duration.
  • the base station can determine the channel listening duration of each UE as needed.
  • the scheduling related information may further include: location information of the scheduled UE and/or an ID of the scheduled UE, so that the scheduled UE is allocated according to resource allocation information, location information, and/or scheduling of other scheduled UEs.
  • the ID of the UE determines whether the channel corresponding to the allocated resource is idle.
  • the scheduled UE may determine, according to the resource allocation information and the location information of the other scheduled UEs, the allocated resources. Whether the channel is idle;
  • the scheduled UE may determine, according to the resource allocation information and the ID of the other scheduled UE, whether the channel corresponding to the allocated resource is idle;
  • the scheduled UE may determine according to resource allocation information, location information, and ID of other scheduled UEs. Whether the channel corresponding to the allocated resource is idle.
  • the scheduling related information of the broadcast may be received by at least all the scheduled UEs of the current time, and may also be received by other UEs served by the base station or other surrounding stations.
  • the method may further include:
  • the base station informs other stations around itself that the data cannot be sent within a specified time period; the specified time period is the time period for scheduling the UE, and thus, the data reception sent by the other station to the first UE can be effectively avoided. Impact.
  • the base station may notify the other station that the data cannot be sent within a specified time period after the SIFS is broadcasted after the scheduling related information is broadcasted.
  • the SIFS is a short interframe space in the WIFI system for a high priority transmission scenario; thus, the channel listening process can be avoided.
  • the base station may notify the other station that the data cannot be sent within a specified time period by sending a CTS frame.
  • the other site may be a WIFI site or the like.
  • This embodiment further provides a data transmission method. As shown in FIG. 4, the method includes the following steps:
  • Step 401 The base station allocates resources for all scheduled UEs; and broadcasts the scheduling related to this time. information;
  • the scheduling related information includes resource allocation information of all scheduled UEs this time.
  • the embodiments of the present disclosure do not limit the specific processing procedure for allocating resources to all scheduled UEs. For example, the base station first knows how much data each UE needs to transmit in all the scheduled UEs, and then according to the amount of data that each UE needs to transmit, and combines its own resources to all the scheduled UEs. resource allocation.
  • the base station may broadcast the current scheduling related information by using a PDCCH indication or a control frame of the MAC layer.
  • the scheduling related information may further include: a channel listening duration of each UE; the channel listening duration is used to determine whether a channel corresponding to a resource allocated by the UE for itself is idle during the channel listening duration.
  • the base station can determine the channel listening duration of each UE as needed.
  • the scheduling related information may further include: location information of the scheduled UE and/or an ID of the scheduled UE, so that the scheduled UE is allocated according to resource allocation information, location information, and/or scheduling of other scheduled UEs.
  • the ID of the UE determines whether the channel corresponding to the allocated resource is idle.
  • the scheduling related information of the broadcast may be received by at least all the scheduled UEs of the current time, and may also be received by other UEs served by the base station or other surrounding stations.
  • the method may further include:
  • the base station informs other stations around itself that the data cannot be sent within a specified time period; the specified time period is the time period for scheduling the UE, and thus, the data reception sent by the other station to the first UE can be effectively avoided. Impact.
  • the base station may notify the other station that the data cannot be sent within a specified time period after the SIFS is broadcasted after the scheduling related information is broadcasted.
  • the SIFS is a short interframe space in the WIFI system for a high priority transmission scenario; thus, the channel listening process can be avoided.
  • the base station may notify the other station that the data cannot be sent within a specified time period by sending a CTS frame.
  • the other site may be a WIFI site or the like.
  • Step 402 After receiving the scheduling related information of the broadcast, the first UE uses the resource allocation information of all the scheduled UEs in the current time, and combines the LBT mechanism to determine that the allocated resources can be used, and sends data on the allocated resources.
  • the first UE monitors whether a channel corresponding to a resource allocated by itself is idle, determines that the channel is idle, determines that the allocated resource can be used, and sends data on the allocated resource;
  • the allocated resources may be occupied by the transmission of the WIFI data, and therefore, may not be allocated. Send upstream data on the resource.
  • the first UE monitors whether a channel corresponding to the resource allocated by itself is idle during the channel listening duration.
  • the first UE may determine, according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, whether the channel is used by the other The data transmission of the scheduled UE is occupied.
  • the first UE may determine, according to resource allocation information of other scheduled UEs, IDs of other scheduled UEs, whether the channel is scheduled by the other. The data transmission of the UE is occupied.
  • the first UE may be configured according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, and other The ID of the UE is used to determine whether the channel is occupied by data transmission of the other scheduled UEs.
  • the method may further include:
  • the first UE sends channel occupation information on the reserved resources in the resources allocated by the other scheduled UEs of all the scheduled UEs, so that the first UE is in the present
  • the channel does not need to be monitored again, and the number of monitoring is reduced.
  • the UE that is scheduled in the current scheduling period includes: a first UE, a second UE, and a third UE, where the resources allocated by the base station for the first UE are uplink subframe 1 and uplink subframe 3, but The uplink subframe 2 is not allocated.
  • the first UE sends the channel occupation information on the uplink subframe 2, so that the channel monitoring process before the data is transmitted on the uplink subframe 3 can be avoided. If the channel occupation information is not sent, other stations such as the WIFI station will listen to the channel idle on the uplink subframe 2, and then start transmitting data on the uplink subframe 2, which may cause the first UE to fail on the uplink subframe 3. send data.
  • the channel occupancy information may be a preamble code.
  • TDD Time Division Duplexing
  • FDD Frequency Division Duplexing
  • the base station allocates resources for all the scheduled UEs; and broadcasts the scheduling related information of the current time; after receiving the broadcast scheduling related information, the first UE uses the scheduling related information This time, the resource allocation information of all the scheduled UEs, combined with the LBT mechanism, determines that the allocated resources can be used, and transmits data on the allocated resources. Since the UE obtains the resource allocation information of all the scheduled UEs, the information can be learned. The channel is occupied by what type of data, so that it can accurately determine whether this data transmission will be affected.
  • the first UE monitors whether the channel corresponding to the resource allocated by itself is idle; and when determining that the channel is busy, determining, according to the resource allocation information of other scheduled UEs in the resource allocation information of all the scheduled UEs in the current time, Whether the channel is occupied by the data transmission of the other scheduled UEs; thus, the UE can accurately know whether the channel is occupied by other scheduled UEs, and if it is occupied by other scheduled UEs, the UE can send on the allocated resources. Data, so that in the multi-user uplink transmission process, continuous transmission on consecutive uplink subframes can be realized, which greatly improves the throughput performance of the network system.
  • the base station after the base station broadcasts the scheduling related information, the base station informs other stations around itself that the data cannot be sent within a specified time period; the specified time period is the scheduled UE.
  • the time period in this way, can further effectively avoid the influence of other stations on the data reception sent by the scheduled UE.
  • the first UE sends channel occupation information on the reserved resources in the resources allocated by the other scheduled UEs of all the scheduled UEs, so that the first UE is in the present In the subsequent process within the secondary scheduling period, there is no need to listen to the channel again.
  • the WIFI system and the LAA system are taken as an example to illustrate how to implement continuous transmission of multi-user uplink data.
  • the UE scheduled by the LAA eNB in this embodiment includes: UE 1, UE 2, and UE 3.
  • the UE 3 is also in the coverage of the WIFI access point (AP, Access Point).
  • AP Access Point
  • the arrow indicates that data transmission is performed, and the dotted circle indicates the listening range.
  • the LAA eNB determines to schedule UE 1, UE 2, and UE in uplink subframes 1, 2, and 3 according to the amount of data that UE 1 , UE 2, and UE 3 need to transmit according to their own resources.
  • the resources allocated for the UE 1 are the uplink subframes 1, 2
  • the resources allocated for the UE 2 are the uplink subframes 1, 3
  • the resources allocated for the UE 3 are the uplink subframe 2
  • the scheduling related to the current broadcast is related.
  • the scheduling related information includes: resource allocation information, location information, and ID of UE 1, UE2, and UE3.
  • the UE 1 monitors whether the channel is idle in the previous subframe of the uplink subframe 1, and determines that the channel is idle, in the uplink subframes 1, 2 Send upstream data.
  • the UE 2 monitors whether the channel is idle in the previous subframe of the uplink subframe 1, and determines that the channel is idle and transmits on the uplink subframe 1. Upstream data; and, the UE 2 sends the preamble code on the reserved resource corresponding to the uplink subframe 2, so that in the subsequent process in the current scheduling period, the UE 2 does not need to listen to the channel again, directly in the uplink subframe. 3 sends uplink data.
  • the reserved resource may be determined according to requirements, for example, a 1.08 MHz frequency domain resource corresponding to a physical random access channel (PRACH) is used as a reserved resource.
  • PRACH physical random access channel
  • the UE 3 After receiving the scheduling related information of the broadcast, the UE 3 monitors whether the channel is idle in the previous subframe of the uplink subframe 2, and the UE 3 monitors that the channel is busy, and according to the UE. 1 and the resource allocation information, location information, and ID of the UE 2, determining that the channel is surrounded by the WIFI AP So, UE 3 does not send uplink data on uplink subframe 2.
  • a blank rectangular frame (for example, a box in which "broadcast scheduling information" is located) indicates a downlink subframe
  • a gray rectangular frame (for example, a frame in which "uplink data” is located) indicates an uplink subframe
  • a horizontal line 100 indicates a preamble. code.
  • the present embodiment actually uses narrowband placeholders (channel occupancy information is transmitted on reserved resources among resources allocated to other scheduled UEs in all scheduled UEs). , to avoid the impact of the WIFI system on the LAA system data.
  • the WIFI system and the LAA system are taken as an example to illustrate how continuous transmission of multi-user uplink data is achieved.
  • the UE scheduled by the LAA eNB in this embodiment includes: UE 1, UE 2, and UE 3. Among them, UE 3 is also within the coverage of the WIFI AP.
  • the LAA eNB determines to schedule UE 1, UE 2, and UE 3 in uplink subframes 1, 2, and 3 according to the amount of data that UE 1, UE 2, and UE 3 need to transmit, and in combination with their own resources. .
  • the resources allocated for the UE 1 are the uplink subframes 1, 3
  • the resources allocated for the UE 2 are the uplink subframe 2
  • the resources allocated for the UE 3 are the uplink subframes 2 and 3
  • the scheduling related information includes: resource allocation information, location information, and ID of the UE 1, the UE 2, and the UE 3.
  • the LAA eNB has a WIFI module, that is, the LAA eNB can communicate with the surrounding WIFI AP.
  • the LAA eNB sends the broadcast scheduling information to the scheduled information about the uplink data transmission of the scheduled UE, the LAA eNB sends a CTS frame through the WIFI module to notify the surrounding WIFI AP that the WIFI AP cannot be sent within the specified time period (the current scheduling time). Data, thereby avoiding the impact of the WIFI network on the data reception of the LAA network.
  • the CTS frame may be directly sent after the SIFS is sent after the broadcast scheduling related information is sent, thereby avoiding the channel monitoring process.
  • the SIFS is a short interframe space in the WIFI system, and is used for high priority transmission occasions.
  • the WIFI AP shown in FIG. 6 receives the CTS frame, the data will not be transmitted within the specified time period.
  • the UE 1 After receiving the scheduling related information of the broadcast, the UE 1 monitors whether the channel is idle in the previous subframe of the uplink subframe 1, and determines that the channel is idle and transmits on the uplink subframe 1. Row data. At the same time, the UE 1 sends the preamble code on the reserved resource corresponding to the uplink subframe 2, so that in the subsequent process in the current scheduling period, the UE 1 does not need to listen to the channel again and directly sends the uplink subframe 3. Upstream data.
  • the UE 2 After receiving the scheduling related information of the broadcast, the UE 2 monitors whether the channel is idle in the previous subframe of the uplink subframe 1. At this time, the UE 2 monitors that the channel is busy, and according to the UE1 and The resource allocation information, the location information, and the ID of the UE 3 are determined to be occupied by the LAA uplink data transmission of the UE 1. Since the previous subframe is occupied by the LAA uplink data transmission, the UE 2 may be in the uplink. The uplink data is transmitted on the frame 2.
  • the WIFIAP For the UE 3, as shown in FIG. 8, after the UE 3 receives the broadcast scheduling related information, since the WIFIAP receives the CTS frame sent by the LAA eNB base station, the WIFI AP does not send the WIFI data within the current scheduling time, so at this time, The UE 3 monitors the channel idle in the previous subframe of the uplink subframe 2, and the UE 3 transmits the uplink data on the uplink subframes 2 and 3.
  • a blank rectangular frame (for example, a box in which "broadcast scheduling information" is located) indicates a downlink subframe
  • a gray rectangular frame (for example, a frame in which "uplink data” is located) indicates an uplink subframe.
  • the embodiment further adopts a method for informing the WIFI AP that data cannot be sent within the current scheduling period, thereby further avoiding the influence of the WIFI system on the LAA system data.
  • a UE is provided in at least another embodiment. As shown in FIG. 9, the UE includes: a receiving unit 91, a resource determining unit 92, and a first sending unit 93;
  • the receiving unit 91 is configured to receive scheduling related information of the broadcast; the scheduling related information includes resource allocation information of all scheduled UEs of the current time;
  • the resource determining unit 92 is configured to use the resource allocation information of all the scheduled UEs in the current time, and combine the LBT mechanism to determine that the allocated resource can be used, triggering the sending unit;
  • the first sending unit 93 is configured to send data on the allocated resources after receiving the trigger of the resource determining unit.
  • the scheduling related information of the broadcast may be broadcasted by a PDCCH indication or a control frame of a MAC layer.
  • the scheduling related information may further include: location information of the scheduled UE and/or being adjusted The ID of the UE.
  • the ID of the UE may be a TMSI, an IMEI, or an IMSI.
  • the resource determining unit 92 is specifically configured to:
  • the allocated resources can be used.
  • the resource determining unit 92 determines that the allocated resource cannot be used. At this time, the allocated resource may be occupied by the transmission of the WIFI data. Therefore, uplink data cannot be sent on the allocated resources.
  • the scheduling related information may further include: a channel listening duration;
  • the resource determining unit 92 monitors whether the channel corresponding to the resource allocated for itself is idle during the channel listening duration.
  • the channel listening duration is determined by the base station.
  • the base station can determine the listening duration of the channel as needed.
  • the resource determining unit 92 may determine, according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, whether the channel is The data transmission of other scheduled UEs is occupied.
  • the resource determining unit 92 may determine, according to resource allocation information of other scheduled UEs, IDs of other scheduled UEs, whether the channel is scheduled by the other. The data transmission of the UE is occupied.
  • the resource determining unit 92 may be configured according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, and other The ID of the UE is scheduled to determine whether the channel is occupied by data transmission of the other scheduled UEs.
  • the first sending unit 93 is further configured to: when the first UE sends data on the allocated resource In the process, the channel occupation information is sent on the reserved resources in the resources allocated by the other scheduled UEs in all the scheduled UEs in the current scheduled period, so that the resource determining unit 92 is in the present In the subsequent process in the secondary scheduling period, the channel does not need to be monitored again, and the number of monitoring is reduced.
  • the UE that is scheduled in the current scheduling period includes: a first UE, a second UE, and a third UE, where the resources allocated by the base station for the first UE are uplink subframe 1 and uplink subframe 3, but The uplink subframe 2 is not allocated.
  • the first sending unit 93 of the first UE sends the channel occupation information on the uplink subframe 2, so that the channel monitoring process before the data is transmitted on the uplink subframe 3 can be avoided. If the channel occupation information is not sent, other stations such as the WIFI station may monitor the channel idle on the uplink subframe 2, thereby starting to transmit data on the uplink subframe 2, which may cause the first sending unit 93 of the first UE. Data cannot be sent smoothly on the uplink subframe 3.
  • the channel occupation information may be a preamble code.
  • the receiving unit 91 may be implemented by a receiver in the UE;
  • the resource determining unit 92 may be a central processing unit (CPU), a microprocessor (MCU, a Micro Control Unit), and a number in the UE.
  • the DSP Signal Processor
  • FPGA Field-Programmable Gate Array
  • the first transmitting unit 93 can be implemented by a transmitter in the UE.
  • the embodiment further provides a base station, as shown in FIG. 10, the base station includes: a resource allocation unit 101 and a second sending unit 102;
  • the resource allocation unit 101 is configured to allocate resources for all scheduled UEs
  • the second sending unit 102 is configured to broadcast current scheduling related information, where the scheduling related information includes resource allocation information of all scheduled UEs.
  • the embodiment of the present disclosure does not limit the specific processing procedure for the resource allocation unit 101 to allocate resources to all scheduled UEs. For example, the resource allocation unit 101 first knows how much data each UE needs to transmit in all the scheduled UEs; and then according to the amount of data that each UE needs to send, and combines the resources of the base station where it is located, All scheduled UEs allocate resources.
  • the scheduling related information includes resource allocation information of all scheduled UEs this time.
  • the second sending unit 102 may broadcast the current scheduling related information by using a PDCCH indication or a control frame of the MAC layer.
  • the resource allocation information of all the scheduled UEs of the current time is used by the scheduled UE to determine whether the allocated resources are available.
  • the scheduling related information may further include: a channel listening duration of each UE; the channel listening duration is used to determine whether a channel corresponding to a resource allocated by the UE for itself is idle during the channel listening duration.
  • the base station can determine the channel listening duration of each UE as needed.
  • the scheduling related information may further include: location information of the scheduled UE and/or an ID of the scheduled UE, so that the scheduled UE is allocated according to resource allocation information, location information, and/or scheduling of other scheduled UEs.
  • the ID of the UE determines whether the channel corresponding to the allocated resource is idle.
  • the scheduled UE may determine, according to the resource allocation information and the location information of the other scheduled UEs, the allocated resources. Whether the channel is idle;
  • the scheduled UE may determine, according to the resource allocation information and the ID of the other scheduled UE, whether the channel corresponding to the allocated resource is idle;
  • the scheduled UE may determine according to resource allocation information, location information, and ID of other scheduled UEs. Whether the channel corresponding to the allocated resource is idle.
  • the scheduling related information of the broadcast may be received by at least all the scheduled UEs of the current time, and may also be received by other UEs served by the base station or other surrounding stations.
  • the second sending unit 102 is further configured to notify other stations around the base station where the base station is located that the data cannot be sent within a specified time period; the specified time period is the time period for scheduling the UE, and thus, The influence of other stations on the data reception sent by the first UE can be effectively avoided.
  • the second sending unit 102 may notify the other station that the data cannot be sent within a specified time period after the SIFS is broadcasted after the current scheduling related information is broadcasted.
  • the SIFS is a short interframe space in the WIFI system for a high priority transmission scenario; thus, the channel listening process can be avoided.
  • the second sending unit 102 may notify the other station that the data cannot be sent within a specified time period by sending a CTS frame.
  • the other site may be a WIFI site or the like.
  • the resource allocation unit 101 and the second sending unit 102 may be implemented by a CPU, an MCU, a DSP, or an FPGA in a base station in combination with a transceiver.
  • the embodiment of the present disclosure further provides a data transmission system, as shown in FIG. 11, the system includes: a base station 111 and a first UE 112;
  • the base station 111 is configured to allocate resources to all scheduled UEs; and broadcast the scheduling related information of the current time;
  • the first UE 112 is configured to receive scheduling related information of the broadcast, and use the resource allocation information of all the scheduled UEs in the current time, and combine the LBT mechanism to determine that the allocated resources can be used, and send data on the allocated resources. .
  • the scheduling related information includes resource allocation information of all scheduled UEs this time.
  • the embodiments of the present disclosure do not limit the specific processing procedure for allocating resources to all scheduled UEs. For example, the base station first knows how much data each UE needs to transmit in all the scheduled UEs, and then according to the amount of data that each UE needs to transmit, and combines its own resources to all the scheduled UEs. resource allocation.
  • the base station 111 may broadcast the current scheduling related information through a PDCCH indication or a control frame of the MAC layer.
  • the scheduling related information may further include: a channel listening duration of each UE; the channel listening duration is used to determine whether a channel corresponding to a resource allocated by the UE for itself is idle during the channel listening duration.
  • the base station can determine the channel listening duration of each UE as needed.
  • the scheduling related information may further include: location information of the scheduled UE and/or an ID of the scheduled UE, so that the scheduled UE is allocated according to resource allocation information, location information, and/or scheduling of other scheduled UEs.
  • the ID of the UE determines whether the channel corresponding to the allocated resource is idle.
  • the scheduling related information of the broadcast may be received by at least all the scheduled UEs of the current time, and may also be received by other UEs served by the base station or other surrounding stations.
  • the base station 111 is further configured to: after the scheduling related information is broadcast, notify other stations around itself that the data cannot be sent within a specified time period; the specified time period is a time period for scheduling the UE, and thus, effectively The effect of other stations on the reception of data transmitted by the first UE 111 is avoided.
  • the base station 111 may notify the other station that the data cannot be sent within a specified time period after the SIFS is broadcasted after the current scheduling related information is broadcasted.
  • the SIFS is a short interframe space in the WIFI system for a high priority transmission scenario; thus, the channel listening process can be avoided.
  • the base station 111 can notify the other station that the data cannot be sent within a specified time period by transmitting a CTS frame.
  • the other site may be a WIFI site or the like.
  • the first UE 112 is specifically configured to:
  • the first UE 112 determines that the allocated resource cannot be used. At this time, the allocated resource may be occupied by the transmission of the WIFI data. Therefore, uplink data cannot be sent on the allocated resources.
  • the first UE 112 is configured to monitor whether a channel corresponding to the resource allocated for itself is idle during the channel listening duration.
  • the first UE 112 may determine, according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, whether the channel is The data transmission of other scheduled UEs is occupied.
  • the first UE 112 may determine, according to resource allocation information of other scheduled UEs, IDs of other scheduled UEs, whether the channel is used by the other Scheduling the data transmission occupation of the UE.
  • the first UE 112 may be configured according to resource allocation information of other scheduled UEs, location information of other scheduled UEs, and other The ID of the UE is scheduled to determine whether the channel is occupied by data transmission of the other scheduled UEs.
  • the first UE 112 is further configured to reserve in the resources allocated by the other scheduled UEs in all the scheduled UEs in the current scheduled period in the process of sending data on the allocated resources.
  • the channel occupancy information is sent on the resource, so that the first UE 112 does not need to listen to the channel again in the subsequent process in the current scheduling period, and the number of times of monitoring is reduced.
  • the UE that is scheduled in the current scheduling period includes: a first UE, a second UE, and a third UE, where the resources allocated by the base station for the first UE are uplink subframe 1 and uplink subframe 3, but The uplink subframe 2 is not allocated.
  • the first UE sends the channel occupation information on the uplink subframe 2, so that the channel monitoring process before the data is transmitted on the uplink subframe 3 can be avoided. If the channel occupation information is not sent, other stations such as the WIFI station will listen to the channel idle on the uplink subframe 2, and then start transmitting data on the uplink subframe 2, which may cause the first UE to fail on the uplink subframe 3. send data.
  • the channel occupation information may be a preamble code.
  • the base station 111 allocates resources for all the scheduled UEs; and broadcasts the scheduling related information of the current time; after receiving the broadcast scheduling related information, the first UE 112 uses the scheduling related information.
  • the resource allocation information of all the scheduled UEs combined with the LBT mechanism, determines that the allocated resources can be used, and transmits data on the allocated resources. Since the UE obtains the resource allocation information of all the scheduled UEs, the information can be learned. The channel is occupied by what type of data, so that it can accurately determine whether this data transmission will be affected.
  • the first UE 112 monitors whether the channel corresponding to the resource allocated by itself is idle; and when determining that the channel is busy, determining the resource allocation information of other scheduled UEs in the resource allocation information of all the scheduled UEs in the current time. Whether the channel is occupied by data transmission of the other scheduled UEs; In this way, the UE can accurately know whether the channel is occupied by other scheduled UEs. If it is occupied by other scheduled UEs, the UE can send data on the allocated resources, so that continuous continuous transmission can be implemented in the multi-user uplink transmission process. The uninterrupted transmission on the uplink subframe greatly improves the throughput performance of the network system.
  • the base station 111 informs other stations around itself that the data cannot be transmitted within a specified time period; the specified time period is the time period for scheduling the UE, The impact of other stations on the data reception sent by the scheduled UE can be further effectively avoided.
  • the first UE 112 sends channel occupation information on the reserved resources in the resources allocated by the other scheduled UEs of all the scheduled UEs, such that the first UE 112 In the subsequent process within this scheduling period, there is no need to listen to the channel again.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device. Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing one or more processes and/or block diagrams in the flowchart. The steps of a function specified in a box or multiple boxes.

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Abstract

本公开文本公开了一种数据传输方法，包括：第一用户设备(UE)接收广播的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；所述第一UE利用所述本次所有被调度UE的资源分配信息，并结合先听后说(LBT)机制，确定分配的资源能使用时，在分配的资源上发送数据。本公开文本同时还公开了一种UE、基站及数据传输系统。

Description

数据传输方法、系统、用户设备及基站
相关申请的交叉引用
本申请主张在2015年7月24日在中国提交的中国专利申请No.201510441687.7的优先权，其全部内容通过引用包含于此。
技术领域
本公开文本涉及无线通信技术，尤其涉及一种数据传输方法、系统、用户设备(UE，User Equipment)及基站。
背景技术
随着长期演进(LTE，Long Term Evolution)技术的发展，人们对无线宽带数据的需求越来越明显。而稀缺的频谱资源无疑是制约LTE技术的一大因素。为了满足人们日益增长的需求，扩大系统带宽是行之有效的方法。因此，授权辅助接入(LAA，Licensed-Assisted Access)方案应运而生。
LAA技术的核心思想是，基于LTE网络平台，将未授权的频段聚合到LTE网络中使用。LAA方案主要应用在小站场景，即将LTE网络相关频谱作为主载波，未授权(unlicensed)频谱作为辅载波，主、辅载波以载波聚合的方式共同为用户提供服务，可用带宽的增加使得用户数据速率要求得到了保证，这样的系统可以称为LAA系统。
在LAA系统中，未授权载波上的数据传输必须要满足未授权频段的规章要求，比如采用发送数据前必须采用先听后说(LBT，listen before talk)技术来保证信道空闲。
然而，由于采用LBT技术，那么在多用户上行传输过程中，每个UE在发送上行数据前要做信道监听，只有当信道闲时才能发送上行数据，这样就会出现多UE无法在连续上行子帧上的不间断传输的情况，从而极大地降低了LAA系统的吞吐量性能。
发明内容
为解决相关技术中存在的技术问题，本公开文本实施例提供一种数据传输方法、系统、UE及基站。
为达到上述目的，本公开文本实施例的技术方案是这样实现的：
本公开文本实施例提供了一种数据传输方法，包括：
第一UE接收广播的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；
所述第一UE利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
上述方案中，所述利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用，包括：
所述第一UE监听为自身分配的资源对应的信道是否空闲；
确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；
确定所述信道被所述其他被调度UE的数据传输占用时，确定分配的资源能使用。
上述方案中，所述利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用，包括：
所述第一UE监听为自身分配的资源对应的信道是否空闲，确定信道空闲时，确定分配的资源能使用。
上述方案中，所述调度相关信息还包含所述第一UE的信道监听时长；
相应地，所述第一UE监听为自身分配的资源对应的信道是否空闲，为：
所述第一UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
上述方案中，所述广播的调度相关信息通过物理下行控制信道(PDCCH，Physical Downlink Control Channel)指示或介质访问控制(MAC，Media Access Control)层的控制帧广播。
上述方案中，所述方法还包括：
在本次被调度时段内，所述第一UE在为本次所有被调度UE中的其他被 调度UE分配的资源中的预留资源上发送信道占用信息。
上述方案中，所述信道占用信息为前导(preamble)码。
本公开文本实施例还提供了一种数据传输方法，包括：
基站为本次所有被调度UE分配资源；
所述基站广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；所述本次所有被调度UE的资源分配信息用于被调度UE确定分配的资源是否能用。
上述方案中，所述广播本次的调度相关信息，为：
通过PDCCH指示或MAC层的控制帧广播本次的调度相关信息。
上述方案中，所述方法还包括：
所述基站告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段。
上述方案中，所述基站广播本次的调度相关信息后间隔短帧间间隔(SIFS，Short InterFrame Space)后，告知所述其他站点不能在指定时间段内发送数据。
上述方案中，所述基站通过发送清除发送(CTS，Clear To Send)帧，告知自身周围的其他站点不能在指定时间段内发送数据。
上述方案中，所述调度相关信息还包括：每个UE的信道监听时长；所述信道监听时长用于对应UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
本公开文本实施例又提供了一种UE，包括：接收单元、资源确定单元及第一发送单元；其中，
所述接收单元，用于接收广播的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；
所述资源确定单元，用于利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，触发所述发送单元；
所述第一发送单元，用于收到资源确定单元的触发后，在分配的资源上发送数据。
上述方案中，所述第一发送单元，还用于在本次被调度时段内，在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占 用信息。
本公开文本实施例还提供了一种基站，包括：资源分配单元及第二发送单元；其中，
所述资源分配单元，用于为本次所有被调度UE分配资源；
所述第二发送单元，用于广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；所述本次所有被调度UE的资源分配信息用于被调度UE确定分配的资源是否能用。
上述方案中，所述第二发送单元，还用于告知自身所在基站周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段。
本公开文本实施例又提供了一种数据传输系统，包括：基站及第一UE；其中，
所述基站，用于为本次所有被调度UE分配资源；并广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息。
所述第一UE，用于接收广播的调度相关信息；利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
本公开文本实施例提供的数据传输方法、系统、UE及基站，基站为本次所有被调度UE分配资源；并广播本次的调度相关信息；第一UE接收广播的调度相关信息后，利用所述调度相关信息中的本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据，由于UE获得了本次所有被调度UE的资源分配信息，进而能获知信道被什么类型的数据占据，从而能准确地确定是否会影响本次的数据传输。这样，当UE确定分配的资源能使用时，可以实现在连续上行子帧上的不间断传输，且多个被调度UE能彼此无干扰地进行上行数据传输，极大地提升了网络系统的吞吐量性能。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例描述中所 需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。以下附图并未刻意按实际尺寸等比例缩放绘制，重点在于示出本申请的主旨。在附图中，相似的附图标记可在不同的视图中描述相似的部件。具有不同字母后缀的相似附图标记可表示相似部件的不同示例。附图以示例而非限制的方式大体示出了本文中所讨论的各个实施例。
图1为相关技术中LAA系统中多用户上行数据传输过程示意图；
图2为本公开文本至少一个实施例中UE侧的数据传输方法流程示意图；
图3为本公开文本所述至少一个实施例中基站侧的数据传输方法流程示意图；
图4为本公开文本所述至少一个实施例中一种数据传输方法流程示意图；
图5为本公开文本实施例数据传输过程示意图；
图6为本公开文本实施例应用场景示意图；
图7为本公开文本至少另一个实施例中多用户上行数据传输过程示意图；
图8为本公开文本至少另一个实施例中多用户上行数据传输过程示意图；
图9为本公开文本至少另一个实施例中UE结构示意图；
图10本公开文本至少另一个实施例中基站结构示意图；
图11为本公开文本至少另一个实施例中数据传输系统结构示意图。
具体实施方式
为使本公开文本实施例的目的、技术方案和优点更加清楚，下面将结合本公开文本实施例的附图，对本公开文本实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开文本的一部分实施例，而不是全部的实施例。基于所描述的本公开文本的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
下面结合附图及实施例对本公开文本再作进一步详细的描述。
在描述本公开文本实施例之前，先详细了解一下为什么由于LBT技术的影响，使得多用户上行传输过程，就会出现多UE无法在连续上行子帧上的 不间断传输的情况。
LBT技术的主要思想是，需要传输数据的站点首先对媒体上有无载波进行监听(即监听信道是否空闲)，以确定是否有别的站点在传输数据。假如媒体空闲(即信道空闲)，该站点便可传输数据；否则，该站点将避让一段时间后再做尝试。
在LAA系统的上行数据传输过程中也要应用LBT技术，即UE在发送上行数据前先进行载波监听，只有当信道闲时才能发送上行数据。当存在多个UE时，即在多用户上行传输过程中，由于LBT技术的影响，将不能实现多UE在连续上行子帧上的不间断传输。具体地，当某个被调度UE监听到前一个子帧上其他被调度UE的数据传输时，会认为信道忙，从而不会在指定子帧上发送数据。
举个例子来说，如图1所示，在一次调度中，假设UE 1、UE 2和UE 3同时被同一个LAA演进型基站(eNB)调度，LAA eNB为UE 1分配的上行资源时上行子帧1，为UE 2分配的上行资源是上行子帧2，为UE 3分配的上行资源是上行子帧3。在发送上行数据前，UE 2监听到信道被占用(由于UE1正在上行子帧1上传上行数据)，所以UE 2不会在分配的上行子帧2上发送数据。同理，对于UE 3来说，与UE 2相同的理由，如果UE 3监听到信道被占用(由于UE 2正在上行子帧2上传上行数据)，所以UE 3不会在分配的上行子帧3上发送数据，由于前一个子帧被其他调度UE的数据传输占用，所以UE 2和UE 3就不会在指定的子帧上发送数据，这样就会极大地降低LAA系统吞吐量性能。其中，在图1中，斜线阴影部分表示上行子帧。
基于此，在本公开文本的各种实施例中：基站为本次所有被调度UE分配资源；并广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；所述第一UE接收到广播的调度相关信息后，利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
在至少一个实施例中，提供一种数据传输方法，应用于UE，如图2所示，该方法包括以下步骤：
步骤201：第一UE接收广播的调度相关信息；所述调度相关信息包含本 次所有被调度UE的资源分配信息；
这里，实际应用时，所述广播的调度相关信息可以通过PDCCH指示或MAC层的控制帧广播。
所述调度相关信息还可以进一步包括：被调度UE的位置信息和/或被调度UE的身份标识(ID，IDentity)。
其中，所述UE的ID可以是临时识别码(TMSI，Temporary Mobile Subscriber Identity)、移动设备国际身份码(IMEI，International Mobile Equipment Identity)、或者国际移动用户识别码(IMSI，International Mobile Subscriber Identification Number)等。
步骤202：所述第一UE利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
具体地，所述第一UE监听为自身分配的资源对应的信道是否空闲，确定信道空闲时，确定分配的资源能使用，并在分配的资源上发送数据；
确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；
确定所述信道被所述其他被调度UE的数据传输占用时，确定分配的资源能使用。
其中，当确定所述信道不是被所述其他被调度UE的数据传输占用时，则确定分配的资源不能使用，此时，分配的资源可能被WIFI数据的传输所占用，因此，不能在分配的资源上发送上行数据。
在一实施例中，所述调度相关信息还可以包括：信道监听时长；
相应地，所述第一UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
这里，所述信道监听时长由基站来确定。其中，基站可以根据需要来确定信道的监听时长。
当所述调度相关信息还包括被调度UE的位置信息时，所述第一UE可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括被调度UE的ID，所述第一UE可以根据其他被调度UE的资源分配信息、其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括：被调度UE的位置信息及被调度UE的ID时，所述第一UE可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息、以及其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述第一UE在分配的资源上发送数据的过程中，该方法还可以包括：
在本次被调度时段内，所述第一UE在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息，这样，所述第一UE在本次调度时间段内的后续过程中，则不需要再监听信道。
这里，所述信道占用信息可以为preamble码。
本实施例还提供一种数据传输方法，应用于基站，如图3所示，该方法包括以下步骤：
步骤301：基站为本次所有被调度UE分配资源；
这里，本公开文本实施例不对为本次所有被调度UE分配资源的具体处理过程作限定。比如：所述基站先获知本次所有被调度UE中每个UE有多少数据需要发送；然后再根据每个UE需要发送的数据量，并结合自身的资源情况，来为本次所有被调度UE分配资源。
步骤302：所述基站广播本次的调度相关信息；
这里，所述调度相关信息包含本次所有被调度UE的资源分配信息。
具体地，所述基站可以通过PDCCH指示或MAC层的控制帧广播本次的调度相关信息。
这里，所述本次所有被调度UE的资源分配信息用于被调度UE确定分配的资源是否能用。
所述调度相关信息还可以包括：每个UE的信道监听时长；所述信道监听时长用于对应UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
其中，所述基站可以根据需要来确定每个UE的信道监听时长。
实际应用时，所述调度相关信息还可以进一步包括：被调度UE的位置信息和/或被调度UE的ID，以便被调度UE根据其他被调度UE的资源分配信息、位置信息和/或被调度UE的ID，来判断分配的资源对应的信道是否为空闲。
具体地，当所述调度相关信息包括被调度UE的资源分配信息及被调度UE的位置信息时，被调度UE可以根据其他被调度UE的资源分配信息及位置信息，来判断分配的资源对应的信道是否为空闲；
当所述调度相关信息包括被调度UE的资源分配信息及被调度UE的ID时，被调度UE可以根据其他被调度UE的资源分配信息及ID，来判断分配的资源对应的信道是否为空闲；
当所述调度相关信息包括被调度UE的资源分配信息、被调度UE的位置信息及被调度UE的ID时，被调度UE可以根据其他被调度UE的资源分配信息、位置信息及ID，来判断分配的资源对应的信道是否为空闲。
实际应用时，广播的调度相关信息至少可以被本次所有被调度的UE接收到，还可以被所述基站服务的其他UE或周围的其他站点接收到。
在一实施例中，该方法还可以包括：
所述基站告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段，如此，能有效地避免其他站点对所述第一UE发送的数据接收的影响。
具体地，所述基站可以在广播本次的调度相关信息后间隔SIFS后，告知所述其他站点不能在指定时间段内发送数据。
这里，SIFS是WIFI系统中的短帧间间隔，用于高优先级的传输场景；如此，可以避免信道监听过程。
实际应用时，所述基站可以通过发送CTS帧，告知所述其他站点不能在指定时间段内发送数据。
所述其他站点可以是WIFI站点等。
本实施例还提供了一种数据传输方法，如图4所示，该方法包括以下步骤：
步骤401：基站为本次所有被调度UE分配资源；并广播本次的调度相关 信息；
这里，所述调度相关信息包含本次所有被调度UE的资源分配信息。
本公开文本实施例不对为本次所有被调度UE分配资源的具体处理过程作限定。比如：所述基站先获知本次所有被调度UE中每个UE有多少数据需要发送；然后再根据每个UE需要发送的数据量，并结合自身的资源情况，来为本次所有被调度UE分配资源。
所述基站可以通过PDCCH指示或MAC层的控制帧广播本次的调度相关信息。
这里，所述调度相关信息还可以包括：每个UE的信道监听时长；所述信道监听时长用于对应UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
其中，所述基站可以根据需要来确定每个UE的信道监听时长。
实际应用时，所述调度相关信息还可以进一步包括：被调度UE的位置信息和/或被调度UE的ID，以便被调度UE根据其他被调度UE的资源分配信息、位置信息和/或被调度UE的ID，来判断分配的资源对应的信道是否为空闲。
实际应用时，广播的调度相关信息至少可以被本次所有被调度的UE接收到，还可以被所述基站服务的其他UE或周围的其他站点接收到。
在一实施例中，所述基站广播所述调度相关信息后，该方法还可以包括：
所述基站告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段，如此，能有效地避免其他站点对所述第一UE发送的数据接收的影响。
具体地，所述基站可以在广播本次的调度相关信息后间隔SIFS后，告知所述其他站点不能在指定时间段内发送数据。
这里，SIFS是WIFI系统中的短帧间间隔，用于高优先级的传输场景；如此，可以避免信道监听过程。
实际应用时，所述基站可以通过发送CTS帧，告知所述其他站点不能在指定时间段内发送数据。
所述其他站点可以是WIFI站点等。
步骤402：第一UE接收广播的调度相关信息后，利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
具体地，所述第一UE监听为自身分配的资源对应的信道是否空闲，确定信道空闲时，确定分配的资源能使用，并在分配的资源上发送数据；
确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；
确定所述信道被所述其他被调度UE的数据传输占用时，确定分配的资源能使用，如图5所示。
其中，当确定所述信道不是被所述其他被调度UE的数据传输占用时，则确定分配的资源不能使用，此时，分配的资源可能被WIFI数据的传输所占用，因此，不能在分配的资源上发送上行数据。
当所述调度相关信息还包括信道监听时长时，所述第一UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
当所述调度相关信息还包括被调度UE的位置信息时，所述第一UE可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括被调度UE的ID时，所述第一UE可以根据其他被调度UE的资源分配信息、其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括被调度UE的位置信息及被调度UE的ID时，所述第一UE可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息、以及其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
在所述第一UE在分配的资源上发送数据的过程中，该方法还可以包括：
在本次被调度时段内，所述第一UE在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息，这样，所述第一UE在本次调度时间段内的后续过程中，则不需要再监听信道，减少了监听次数。 具体来说，假设本次调度时段内被调度的UE包含：第一UE、第二UE及第三UE；其中，基站为第一UE分配的资源是上行子帧1和上行子帧3，但并未分配上行子帧2，此时，第一UE在上行子帧2上发送信道占用信息，可以避免在上行子帧3上发送数据前的信道监听过程。如果不发送信道占用信息，其他站点比如WIFI站点会在上行子帧2上监听到信道空闲，从而在上行子帧2上开始发送数据，这样可能会导致第一UE不能在上行子帧3上顺利发送数据。
这里，所述信道占用信息可以为前导(preamble)码。
需要说明的是：本公开文本实施例提供的方案，既可以适用于时分双工(TDD，Time Division Duplexing)系统，还可以适用于频分双工(FDD，Frequency Division Duplexing)系统。
本公开文本实施例提供的数据传输方法，基站为本次所有被调度UE分配资源；并广播本次的调度相关信息；第一UE接收广播的调度相关信息后，利用所述调度相关信息中的本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据，由于UE获得了本次所有被调度UE的资源分配信息，进而能获知信道被什么类型的数据占据，从而能准确地确定是否会影响本次的数据传输。这样，当UE确定分配的资源能使用时，可以实现在连续上行子帧上的不间断传输，且多个被调度UE能彼此无干扰地进行上行数据传输，极大地提升了网络系统的吞吐量性能。
另外，所述第一UE监听为自身分配的资源对应的信道是否空闲；确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；这样，UE可以准确地获知信道是否是被其他被调度UE所占用，如果是被其他被调度UE占用，则UE可以在分配的资源上发送数据，从而在多用户上行传输过程中，可以实现连续上行子帧上的不间断传输，极大地提升了网络系统的吞吐量性能。
除此以外，所述基站广播所述调度相关信息后，所述基站告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE 的时间段，如此，能进一步有效地避免其他站点对被调度UE发送的数据接收的影响。
在本次被调度时段内，所述第一UE在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息，这样，所述第一UE在本次调度时间段内的后续过程中，则不需要再监听信道。
在上述至少一个实施例的基础上，在至少另一个实施例中以WIFI系统和LAA系统为例，来说明在如何实现多用户上行数据的连续传输。
如图6所示，本实施例被LAA eNB调度的UE包括：UE 1、UE 2以及UE 3。其中，UE 3还在WIFI接入点(AP，Access Point)的覆盖范围内。其中，在图6中，箭头表示在进行数据传输，虚线圆框表示监听范围。
设本次调度中，在LAA eNB根据UE 1、UE 2以及UE 3需要发送的数据量，并结合自身的资源情况，确定在上行子帧1、2、3中调度UE 1、UE 2以及UE 3。具体地，为UE 1分配的资源是上行子帧1、2，为UE 2分配的资源是上行子帧1、3，为UE 3分配的资源是上行子帧2，并广播本次的调度相关信息；所述调度相关信息包括：UE 1、UE2及UE3的资源分配信息、位置信息以及ID。
对于UE 1来说，如图7所示，UE 1收到广播的调度相关信息后，在上行子帧1的前一子帧监听信道是否空闲，确定信道空闲时，在上行子帧1、2上发送上行数据。
对于UE 2来说，如图7所示，UE 2收到广播的调度相关信息后，在上行子帧1的前一子帧监听信道是否空闲，确定信道空闲时，在上行子帧1上发送上行数据；并且，UE 2在上行子帧2对应的预留资源上发送preamble码，这样，在本次调度时间段内的后续过程中，则UE 2不需要再监听信道，直接在上行子帧3上发送上行数据。
这里，所述预留资源可以根据需要确定，比如：将与物理随机接入信道(PRACH)对应的1.08MHz频域资源作为预留资源等。
对于UE 3来说，如图7所示，UE 3收到广播的调度相关信息后，在上行子帧2的前一子帧监听信道是否空闲，此时UE 3监听到信道忙，且根据UE 1及UE 2的资源分配信息、位置信息以及ID，确定信道被周围的WIFI AP 所占用，所以，UE 3不会在上行子帧2上发送上行数据。
其中，在图7中，空白矩形框(例如“广播调度信息”所在的框)表示下行子帧，灰色矩形框(例如“上行数据”所在的框)表示上行子帧，并且横线100表示preamble码。
从上面的描述中可以看出，本实施例实际上通过窄带占位符(在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息)的方式，避免了WIFI系统对LAA系统数据的影响。
在参照图2-5所描述的至少一个实施例的基础上，在至少另一个实施例中以WIFI系统和LAA系统为例，来说明在如何实现多用户上行数据的连续传输。
如图6所示，本实施例被LAA eNB调度的UE包括：UE 1、UE 2以及UE 3。其中，UE 3还在WIFI AP的覆盖范围内。
设本次调度中，LAA eNB根据UE 1、UE 2以及UE 3需要发送的数据量，并结合自身的资源情况，确定在上行子帧1、2、3中调度UE 1、UE 2以及UE 3。具体地，为UE 1分配的资源是上行子帧1、3，为UE 2分配的资源是上行子帧2，为UE 3分配的资源是上行子帧2、3，并广播本次的调度相关信息；所述调度相关信息包括：UE 1、UE 2及UE3的资源分配信息、位置信息以及ID。
同时，假设LAA eNB具有WIFI模块，也就是说，设LAA eNB可以与周围的WIFI AP进行通信。当LAA eNB发送广播调度信息告诉被调度UE本次上行数据传输的调度相关信息后，LAA eNB通过WIFI模块发送CTS帧，以告知周围WIFI AP在指定的时段内(本次调度时长内)不能发送数据，由此避免WIFI网络对LAA网络数据接收的影响。
其中，CTS帧可以在广播调度相关信息发送后间隔SIFS后直接发送，由此避免信道监听过程。这里，SIFS是WIFI系统中的短帧间间隔，用于高优先级的传输场合，这样，当图6所示的WIFI AP收到CTS帧后，不会在指定的时段内发送数据。
对于UE 1，如图8所示，UE 1收到广播的调度相关信息后，在上行子帧1的前一子帧监听信道是否空闲，确定信道空闲时，在上行子帧1上发送上 行数据。同时，UE 1在上行子帧2对应的预留资源上发送preamble码，这样，在本次调度时间段内的后续过程中，则UE 1不需要再监听信道，直接在上行子帧3上发送上行数据。
对于UE 2，如图8所示，UE 2收到广播的调度相关信息后，在上行子帧1的前一子帧监听信道是否空闲，此时，UE 2监听到信道忙，且根据UE1及UE 3的资源分配信息、位置信息以及ID，确定信道是被UE 1的LAA上行数据传输所占用，由于前一子帧是被LAA上行数据传输所占用，所以此时，UE 2可以在上行子帧2上发送上行数据。
对于UE 3，如图8所示，UE 3收到广播的调度相关信息后，由于WIFIAP收到了LAA eNB基站发送的CTS帧，所以WIFI AP不在本次调度时长内发送WIFI数据，所以此时，UE 3在上行子帧2的前一子帧监听到信道空闲，UE 3在上行子帧2、3上发送上行数据。
其中，在图8中，空白矩形框(例如“广播调度信息”所在的框)表示下行子帧，并且灰色矩形框(例如“上行数据”所在的框)表示上行子帧。
从上面的描述中可以看出，本实施例进一步采用了告知WIFI AP在本次调度时长内不能发送数据的方式，进一步避免了WIFI系统对LAA系统数据的影响。
为实现本公开文本实施例的方法，在至少另一个实施例中提供一种UE，如图9所示，该UE包括：接收单元91、资源确定单元92及第一发送单元93；其中，
所述接收单元91，用于接收广播的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；
所述资源确定单元92，用于利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，触发所述发送单元；
所述第一发送单元93，用于收到资源确定单元的触发后，在分配的资源上发送数据。
其中，实际应用时，所述广播的调度相关信息可以通过PDCCH指示或MAC层的控制帧广播。
所述调度相关信息还可以进一步包括：被调度UE的位置信息和/或被调 度UE的ID。
其中，所述UE的ID可以是TMSI、IMEI、或者IMSI等。
所述资源确定单元92，具体用于：
监听为自身分配的资源对应的信道是否空闲，确定信道空闲时，确定分配的资源能使用，并在分配的资源上发送数据；
确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；
确定所述信道被所述其他被调度UE的数据传输占用时，确定分配的资源能使用。
其中，当确定所述信道不是被所述其他被调度UE的数据传输占用时，则所述资源确定单元92确定分配的资源不能使用，此时，分配的资源可能被WIFI数据的传输所占用，因此，不能在分配的资源上发送上行数据。
在一实施例中，所述调度相关信息还可以包括：信道监听时长；
相应地，所述资源确定单元92在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
这里，所述信道监听时长由基站来确定。其中，基站可以根据需要来确定信道的监听时长。
当所述调度相关信息还包括被调度UE的位置信息时，所述资源确定单元92可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括被调度UE的ID，所述资源确定单元92可以根据其他被调度UE的资源分配信息、其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括：被调度UE的位置信息及被调度UE的ID时，所述资源确定单元92可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息、以及其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
所述第一发送单元93，还用于当所述第一UE在分配的资源上发送数据 的过程中，在本次被调度时段内，在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息，这样，所述资源确定单元92在本次调度时间段内的后续过程中，则不需要再监听信道，减少了监听次数。具体来说，假设本次调度时段内被调度的UE包含：第一UE、第二UE及第三UE；其中，基站为第一UE分配的资源是上行子帧1和上行子帧3，但并未分配上行子帧2，此时，第一UE的所述第一发送单元93在上行子帧2上发送信道占用信息，可以避免在上行子帧3上发送数据前的信道监听过程。如果不发送信道占用信息，其他站点比如WIFI站点会在上行子帧2上监听到信道空闲，从而在上行子帧2上开始发送数据，这样可能会导致第一UE的所述第一发送单元93不能在上行子帧3上顺利发送数据。
这里，所述信道占用信息可以为preamble码。
实际应用时，所述接收单元91可由UE中的接收机实现；所述资源确定单元92可由UE中的中央处理器(CPU，Central Processing Unit)、微处理器(MCU，Micro Control Unit)、数字信号处理器(DSP，Digital Signal Processor)或可编程逻辑阵列(FPGA，Field-Programmable Gate Array)实现；所述第一发送单元93可由UE中的发射机实现。
为实现本公开文本实施例的方法，本实施例还提供一种基站，如图10所示，该基站包括：资源分配单元101及第二发送单元102；其中，
所述资源分配单元101，用于为本次所有被调度UE分配资源；
所述第二发送单元102，用于广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息。
其中，本公开文本实施例不对所述资源分配单元101为本次所有被调度UE分配资源的具体处理过程作限定。比如：所述资源分配单元101先获知本次所有被调度UE中每个UE有多少数据需要发送；然后再根据每个UE需要发送的数据量，并结合自身所在基站的资源情况，来为本次所有被调度UE分配资源。
所述调度相关信息包含本次所有被调度UE的资源分配信息。
具体地，所述第二发送单元102可以通过PDCCH指示或MAC层的控制帧广播本次的调度相关信息。
这里，所述本次所有被调度UE的资源分配信息用于被调度UE确定分配的资源是否能用。
所述调度相关信息还可以包括：每个UE的信道监听时长；所述信道监听时长用于对应UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
其中，所述基站可以根据需要来确定每个UE的信道监听时长。
实际应用时，所述调度相关信息还可以进一步包括：被调度UE的位置信息和/或被调度UE的ID，以便被调度UE根据其他被调度UE的资源分配信息、位置信息和/或被调度UE的ID，来判断分配的资源对应的信道是否为空闲。
具体地，当所述调度相关信息包括被调度UE的资源分配信息及被调度UE的位置信息时，被调度UE可以根据其他被调度UE的资源分配信息及位置信息，来判断分配的资源对应的信道是否为空闲；
当所述调度相关信息包括被调度UE的资源分配信息及被调度UE的ID时，被调度UE可以根据其他被调度UE的资源分配信息及ID，来判断分配的资源对应的信道是否为空闲；
当所述调度相关信息包括被调度UE的资源分配信息、被调度UE的位置信息及被调度UE的ID时，被调度UE可以根据其他被调度UE的资源分配信息、位置信息及ID，来判断分配的资源对应的信道是否为空闲。
实际应用时，广播的调度相关信息至少可以被本次所有被调度的UE接收到，还可以被所述基站服务的其他UE或周围的其他站点接收到。
在一实施例中，所述第二发送单元102，还用于告知自身所在基站周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段，如此，能有效地避免其他站点对所述第一UE发送的数据接收的影响。
具体地，所述第二发送单元102可以在广播本次的调度相关信息后间隔SIFS后，告知所述其他站点不能在指定时间段内发送数据。
这里，SIFS是WIFI系统中的短帧间间隔，用于高优先级的传输场景；如此，可以避免信道监听过程。
实际应用时，所述第二发送单元102可以通过发送CTS帧，告知所述其他站点不能在指定时间段内发送数据。
所述其他站点可以是WIFI站点等。
实际应用时，所述资源分配单元101及第二发送单元102可由基站中的CPU、MCU、DSP或FPGA结合收发机实现。
为实现本公开文本实施例的方法，本公开文本实施例还提供一种数据传输系统，如图11所示，该系统包括：基站111及第一UE 112；其中，
所述基站111，用于为本次所有被调度UE分配资源；并广播本次的调度相关信息；
所述第一UE 112，用于接收广播的调度相关信息；利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
这里，所述调度相关信息包含本次所有被调度UE的资源分配信息。
本公开文本实施例不对为本次所有被调度UE分配资源的具体处理过程作限定。比如：所述基站先获知本次所有被调度UE中每个UE有多少数据需要发送；然后再根据每个UE需要发送的数据量，并结合自身的资源情况，来为本次所有被调度UE分配资源。
所述基站111可以通过PDCCH指示或MAC层的控制帧广播本次的调度相关信息。
这里，所述调度相关信息还可以包括：每个UE的信道监听时长；所述信道监听时长用于对应UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
其中，所述基站可以根据需要来确定每个UE的信道监听时长。
实际应用时，所述调度相关信息还可以进一步包括：被调度UE的位置信息和/或被调度UE的ID，以便被调度UE根据其他被调度UE的资源分配信息、位置信息和/或被调度UE的ID，来判断分配的资源对应的信道是否为空闲。
实际应用时，广播的调度相关信息至少可以被本次所有被调度的UE接收到，还可以被所述基站服务的其他UE或周围的其他站点接收到。
所述基站111，还用于广播所述调度相关信息后，告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段，如此，能有效地避免其他站点对所述第一UE 111发送的数据接收的影响。
具体地，所述基站111可以在广播本次的调度相关信息后间隔SIFS后，告知所述其他站点不能在指定时间段内发送数据。
这里，SIFS是WIFI系统中的短帧间间隔，用于高优先级的传输场景；如此，可以避免信道监听过程。
实际应用时，所述基站111可以通过发送CTS帧，告知所述其他站点不能在指定时间段内发送数据。
所述其他站点可以是WIFI站点等。
所述第一UE 112，具体用于：
监听为自身分配的资源对应的信道是否空闲，确定信道空闲时，确定分配的资源能使用，并在分配的资源上发送数据；
确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；
确定所述信道被所述其他被调度UE的数据传输占用时，确定分配的资源能使用，如图5所示。
其中，当确定所述信道不是被所述其他被调度UE的数据传输占用时，则所述第一UE 112确定分配的资源不能使用，此时，分配的资源可能被WIFI数据的传输所占用，因此，不能在分配的资源上发送上行数据。
当所述调度相关信息还包括：信道监听时长时，所述第一UE 112用于在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
当所述调度相关信息还包括被调度UE的位置信息时，所述第一UE 112可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括被调度UE的ID时，所述第一UE 112可以根据其他被调度UE的资源分配信息、其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
当所述调度相关信息还包括被调度UE的位置信息及被调度UE的ID时，所述第一UE 112可以根据其他被调度UE的资源分配信息、其他被调度UE的位置信息、以及其他被调度UE的ID，来判断所述信道是否被所述其他被调度UE的数据传输占用。
所述第一UE 112，还用于在分配的资源上发送数据的过程中，在本次被调度时段内，在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息，这样，所述第一UE 112在本次调度时间段内的后续过程中，则不需要再监听信道，减少了监听次数。具体来说，假设本次调度时段内被调度的UE包含：第一UE、第二UE及第三UE；其中，基站为第一UE分配的资源是上行子帧1和上行子帧3，但并未分配上行子帧2，此时，第一UE在上行子帧2上发送信道占用信息，可以避免在上行子帧3上发送数据前的信道监听过程。如果不发送信道占用信息，其他站点比如WIFI站点会在上行子帧2上监听到信道空闲，从而在上行子帧2上开始发送数据，这样可能会导致第一UE不能在上行子帧3上顺利发送数据。
这里，所述信道占用信息可以为preamble码。
需要说明的是：本公开文本实施例提供的方案，既可以适用于TDD系统，还可以适用于FDD系统。
本公开文本实施例提供的方案，基站111为本次所有被调度UE分配资源；并广播本次的调度相关信息；第一UE 112接收广播的调度相关信息后，利用所述调度相关信息中的本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据，由于UE获得了本次所有被调度UE的资源分配信息，进而能获知信道被什么类型的数据占据，从而能准确地确定是否会影响本次的数据传输。这样，当UE确定分配的资源能使用时，可以实现在连续上行子帧上的不间断传输，且多个被调度UE能彼此无干扰地进行上行数据传输，极大地提升了网络系统的吞吐量性能。
另外，所述第一UE 112监听为自身分配的资源对应的信道是否空闲；确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用； 这样，UE可以准确地获知信道是否是被其他被调度UE所占用，如果是被其他被调度UE占用，则UE可以在分配的资源上发送数据，从而在多用户上行传输过程中，可以实现连续上行子帧上的不间断传输，极大地提升了网络系统的吞吐量性能。
除此以外，所述基站111广播所述调度相关信息后，所述基站111告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段，如此，能进一步有效地避免其他站点对被调度UE发送的数据接收的影响。
在本次被调度时段内，所述第一UE 112在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息，这样，所述第一UE 112在本次调度时间段内的后续过程中，则不需要再监听信道。
本领域内的技术人员应明白，本公开文本的实施例可提供为方法、系统、或计算机程序产品。因此，本公开文本可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开文本可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开文本是参照根据本公开文本实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本公开文本的可选实施例而已，并非用于限定本公开文本的保护范围。

Claims (18)

  1. 一种数据传输方法，包括：
    第一用户设备UE接收广播的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；
    所述第一UE利用所述本次所有被调度UE的资源分配信息，并结合先听后说LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
  2. 根据权利要求1所述的方法，其中，所述利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用，包括：
    所述第一UE监听为自身分配的资源对应的信道是否空闲；
    确定信道忙时，根据所述本次所有被调度UE的资源分配信息中其他被调度UE的资源分配信息，判断所述信道是否被所述其他被调度UE的数据传输占用；
    确定所述信道被所述其他被调度UE的数据传输占用时，确定分配的资源能使用。
  3. 根据权利要求1所述的方法，其中，所述利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用，包括：
    所述第一UE监听为自身分配的资源对应的信道是否空闲，确定信道空闲时，确定分配的资源能使用。
  4. 根据权利要求2或3所述的方法，其中，所述调度相关信息还包含所述第一UE的信道监听时长；以及
    所述第一UE监听为自身分配的资源对应的信道是否空闲，为：
    所述第一UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
  5. 根据权利要求1所述的方法，其中，所述广播的调度相关信息通过物理下行控制信道PDCCH指示或介质访问控制MAC层的控制帧广播。
  6. 根据权利要求1所述的方法，还包括：
    在本次被调度时段内，所述第一UE在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息。
  7. 根据权利要求6所述的方法，其中，所述信道占用信息为前导preamble码。
  8. 一种数据传输方法，包括：
    基站为本次所有被调度UE分配资源；
    所述基站广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；所述本次所有被调度UE的资源分配信息用于被调度UE确定分配的资源是否能用。
  9. 根据权利要求8所述的方法，其中，所述广播本次的调度相关信息，为：
    通过PDCCH指示或MAC层的控制帧广播本次的调度相关信息。
  10. 根据权利要求8所述的方法，还包括：
    所述基站告知自身周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段。
  11. 根据权利要求10所述的方法，其中，所述基站广播本次的调度相关信息后间隔短帧间间隔SIFS后，告知所述其他站点不能在指定时间段内发送数据。
  12. 根据权利要求10所述的方法，其中，所述基站通过发送清除发送CTS帧，告知自身周围的其他站点不能在指定时间段内发送数据。
  13. 根据权利要求8所述的方法，其中，所述调度相关信息还包括：每个UE的信道监听时长；所述信道监听时长用于对应UE在所述信道监听时长内监听为自身分配的资源对应的信道是否空闲。
  14. 一种UE，包括：接收单元、资源确定单元及第一发送单元；其中，所述接收单元，用于接收广播的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；
    所述资源确定单元，用于利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，触发所述发送单元；
    所述第一发送单元，用于收到资源确定单元的触发后，在分配的资源上发送数据。
  15. 根据权利要求14所述的UE，其中，所述第一发送单元，还用于在 本次被调度时段内，在为本次所有被调度UE中的其他被调度UE分配的资源中的预留资源上发送信道占用信息。
  16. 一种基站，包括：资源分配单元及第二发送单元；其中，
    所述资源分配单元，用于为本次所有被调度UE分配资源；
    所述第二发送单元，用于广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息；所述本次所有被调度UE的资源分配信息用于被调度UE确定分配的资源是否能用。
  17. 根据权利要求16所述的基站，其中，所述第二发送单元，还用于告知自身所在基站周围的其他站点不能在指定时间段内发送数据；所述指定时间段为本次调度UE的时间段。
  18. 一种数据传输系统，包括：基站及第一UE；其中，
    所述基站，用于为本次所有被调度UE分配资源；并广播本次的调度相关信息；所述调度相关信息包含本次所有被调度UE的资源分配信息。
    所述第一UE，用于接收广播的调度相关信息；利用所述本次所有被调度UE的资源分配信息，并结合LBT机制，确定分配的资源能使用时，在分配的资源上发送数据。
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