WO2015176509A1 - 广播资源的调度方法、用户设备和基站 - Google Patents

广播资源的调度方法、用户设备和基站 Download PDF

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Publication number
WO2015176509A1
WO2015176509A1 PCT/CN2014/091674 CN2014091674W WO2015176509A1 WO 2015176509 A1 WO2015176509 A1 WO 2015176509A1 CN 2014091674 W CN2014091674 W CN 2014091674W WO 2015176509 A1 WO2015176509 A1 WO 2015176509A1
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Prior art keywords
dsch
btch
subchannel
resource
resource group
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PCT/CN2014/091674
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English (en)
French (fr)
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高峰
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华为技术有限公司
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Publication of WO2015176509A1 publication Critical patent/WO2015176509A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/18Self-organising networks, e.g. ad-hoc networks or sensor networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a broadcast resource scheduling method, a user equipment, and a base station.
  • the vehicle network is a vehicle interconnection network, that is, a vehicle terminal is equipped with a module having a mobile communication function, and the module having the mobile communication function can be used to realize communication between vehicles, thereby forming an interconnection network. Every year, traffic accidents bring huge loss of life and property.
  • the vehicle networking can perform active security-type services, that is, the vehicle senses the state information of the surrounding vehicles of the vehicle through communication with other vehicles, and takes preventive measures in advance according to the state information of the surrounding vehicles to reduce the probability of traffic accidents.
  • active safety services are carried out by means of broadcasting—that is, the vehicle informs other vehicles within a certain range around the vehicle in the form of broadcasts of state information or alarm information of the own vehicle in order to avoid danger. occur.
  • the allocation of the broadcast resource usually includes the following process: before the user equipment sends the service message in broadcast form, the user equipment first monitors the status of the broadcast resource for broadcasting, and waits for no other device to use the broadcast resource for a certain period of time, and then waits. After a random time, the service message is sent in broadcast form on the broadcast resource.
  • the adjacent user equipment has a service message to be broadcasted in a broadcast manner
  • the use of the broadcast resource may be conflicted, and network congestion may occur.
  • the invention provides a scheduling method for a broadcast resource, a user equipment and a base station, which solves the problem of broadcast resource conflicts existing in the end-to-end broadcast communication and avoids the occurrence of network congestion. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.
  • the embodiment of the present invention provides a method for scheduling a broadcast resource, including: a user equipment sends a scheduling request to a base station; a user equipment receives a sounding and scheduling channel DSCH information sent by a base station in response to a scheduling request; and the user equipment according to the DSCH information Determining a first DSCH subchannel; the user equipment detects a first sounding signal in a DSCH resource group to which the first DSCH subchannel belongs, the DSCH resource group includes at least one DSCH subchannel, and the at least one DSCH subchannel includes a first DSCH subchannel; Determining, by the user equipment, a broadcast transport channel BTCH resource group for transmitting a service message according to the detection result of the first sounding signal, where the BTCH resource group includes at least one BTCH subchannel, and the DSCH resource group corresponds to the BTCH resource group; the user equipment Transmitting the service message in a broadcast form on a BTCH subchannel in the BTCH resource group, and transmit
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is configured by the base station
  • the first detection signal is detected by the user equipment in the DSCH resource group to which the first DSCH subchannel belongs, and specifically includes: the DSCH resource to which the user equipment belongs in the first DSCH subchannel. In the group, whether the first detection signal has a higher priority than other DSCH subchannels of the first DSCH subchannel is detected.
  • the first detection signal carries a resource identifier of a BTCH subchannel that has been occupied;
  • the second sounding signal carries a resource identifier of a BTCH subchannel for transmitting the service message.
  • the user equipment determines, according to the detection result of the first detection signal, a BTCH resource group for sending a service message, Specifically, if the user equipment does not detect the first sounding signal in the DSCH resource group, determining that the BTCH resource group corresponding to the DSCH resource group is used to send the service message; or The user equipment detects the first sounding signal in the DSCH resource group, and the user equipment determines a resource identifier of the BTCH subchannel carried in the first sounding signal, and determines not to use the The resource of the BTCH subchannel identifies the corresponding BTCH subchannel, and determines that other BTCH subchannels not including the BTCH subchannel in the BTCH resource group are used to send the service. Message.
  • the BTCH resource group includes Different BTCH subchannels have different second priorities, the second priority being a priority for transmitting a service message; the user equipment transmitting the service in a broadcast form on a BTCH subchannel in the BTCH resource group
  • the message specifically includes: the user equipment transmitting the service message in a broadcast manner on a BTCH subchannel with the highest priority in the BTCH resource group.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; a combination of the DSCH segment identifier and the DSCH contention resource number corresponding to a DSCH resource index value, where the DSCH resource index value is used to identify the first DSCH sub- channel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; a combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponding to a DSCH resource index value, the DSCH The resource index value is used to identify the first DSCH subchannel.
  • the DSCH resource group is in one-to-one correspondence with the BTCH resource group.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCHs One or more of the DSCH resource groups are included in the segment, and each of the BTCH segments includes one or more of the BTCH resource groups.
  • the embodiment of the present invention provides a method for scheduling a broadcast resource, including: receiving, by a base station, a scheduling request sent by a user equipment; and sending, by the base station, a sounding scheduling channel DSCH information in response to the scheduling request to the user equipment
  • the DSCH information is used by the user equipment to determine a first DSCH subchannel according to the DSCH information, and the user equipment detects a first detection signal in a DSCH resource group to which the first DSCH subchannel belongs, and Determining, according to the detection result of the first sounding signal, a broadcast transport channel BTCH resource group for transmitting a service message, and transmitting the service message in a broadcast form on a BTCH subchannel in the BTCH resource group, and in the Transmitting a second sounding signal on the first DSCH subchannel, the DSCH resource group includes at least one DSCH subchannel, the at least one DSCH subchannel includes the first DSCH subchannel, and the BTCH resource group includes at least one A BTCH subchannel,
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is configured by the base station The priority of the send probe.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; the DSCH segment identifier and The combination of the DSCH contention resource numbers corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length;
  • the combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, where the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH resource group and the The BTCH resource groups correspond one-to-one.
  • Time-frequency occupied by at least one DSCH segment and at least one BTCH segment The resource is located in one subframe in the time domain, and each of the DSCH segments includes one or more of the DSCH resource groups, and each of the BTCH segments includes one or more of the BTCH resource groups.
  • the embodiment of the present invention provides a user equipment, including: a sending module, configured to send a scheduling request to a base station; and a receiving module, configured to receive a sounding scheduling channel DSCH sent by the base station in response to the scheduling request a determining module, configured to determine a first DSCH subchannel according to the DSCH information, and a detecting module, configured to detect a first sounding signal in a DSCH resource group to which the first DSCH subchannel belongs, in the DSCH resource group Included in the at least one DSCH subchannel, the at least one DSCH subchannel includes the first DSCH subchannel; the determining module is further configured to determine, by the user equipment, to send a service message according to the detection result of the first detection signal Broadcast transmission channel BTCH resource group, the BTCH resource group includes at least one BTCH subchannel, the DSCH resource group corresponding to the BTCH resource group; the sending module is further configured to be a BTCH in the BTCH resource group The service message is transmitted in
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is configured by the base station Sending a priority of the sounding signal; the detecting module is configured to: in the DSCH resource group to which the first DSCH subchannel belongs, detect whether the other DSCH subchannels having a higher priority than the first DSCH subchannel have The first detection signal.
  • the first detection signal carries a resource identifier of a BTCH subchannel that has been occupied;
  • the second sounding signal carries a resource identifier of a BTCH subchannel for transmitting the service message.
  • the determining module is specifically configured to: if the detecting module does not detect the first detecting signal, The determining module determines that the BTCH resource group corresponding to the DSCH resource group is used to send the service message; or, if the detecting module detects the first detection signal, the determining module determines the first Detecting a resource identifier of the BTCH subchannel carried in the signal, and determining that the BTCH subchannel corresponding to the resource identifier of the BTCH subchannel is not used, and determining that the BTCH subgroup is not included in the BTCH resource group Letter
  • the other BTCH subchannels of the channel are used to transmit the service message.
  • the BTCH resource group includes Different BTCH subchannels have different second priorities, the second priority is a priority of sending a service message, and the sending module is specifically configured to use a BTCH subchannel with the highest priority among the BTCH resource groups.
  • the service message is sent in broadcast form.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; a combination of the DSCH segment identifier and the DSCH contention resource number corresponding to a DSCH resource index value, where the DSCH resource index value is used to identify the first DSCH sub- channel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; a combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponding to a DSCH resource index value, the DSCH The resource index value is used to identify the first DSCH subchannel.
  • the DSCH resource group is in one-to-one correspondence with the BTCH resource group.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCHs One or more of the DSCH resource groups are included in the segment, and each of the BTCH segments includes one or more of the BTCH resource groups.
  • an embodiment of the present invention provides a base station, including: a receiving module, configured to: Receiving a scheduling request sent by the user equipment; the sending module, configured to send, to the user equipment, the sounding scheduling channel DSCH information that is responsive to the scheduling request; the DSCH information is used by the user equipment to determine, according to the DSCH information, a DSCH subchannel, and the user equipment detects a first sounding signal in a DSCH resource group to which the first DSCH subchannel belongs, and determines a broadcast transmission for transmitting a service message according to the detection result of the first sounding signal.
  • a channel BTCH resource group and transmitting the service message in a broadcast form on a BTCH subchannel in the BTCH resource group, and transmitting a second sounding signal on the first DSCH subchannel, where the DSCH resource group is included
  • At least one DSCH subchannel the at least one DSCH subchannel includes the first DSCH subchannel
  • the BTCH resource group includes at least one BTCH subchannel
  • the DSCH resource group corresponds to the BTCH resource group.
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is configured by the base station The priority of the send probe.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; the DSCH segment identifier and The combination of the DSCH contention resource numbers corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; The combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, where the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH resource group and the The BTCH resource groups correspond one-to-one.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCH segments includes one Or a plurality of the DSCH resource groups, each of the BTCH segments including one or more of the BTCH resource groups.
  • an embodiment of the present invention provides a user equipment, including: a transmitter, configured to send a scheduling request to a base station, and a receiver, configured to receive, by the base station, a probing and scheduling channel, DSCH, in response to the scheduling request.
  • a processor configured to determine a first DSCH subchannel according to the DSCH information, where the processor is further configured to detect, in the DSCH resource group to which the first DSCH subchannel belongs, a first sounding signal, where the DSCH is The resource group includes at least one DSCH subchannel, the at least one DSCH subchannel includes the first DSCH subchannel, and the processor is further configured to be used by the user equipment to determine, according to the detection result of the first detection signal, Transmitting a broadcast transport channel BTCH resource group of the service message, the BTCH resource group includes at least one BTCH subchannel, the DSCH resource group corresponding to the BTCH resource group; and the transmitter is further configured to be in the BTCH resource group
  • the service message is sent in broadcast form on the BTCH subchannel, and the second sounding signal is transmitted on the first DSCH subchannel.
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is configured by the base station Transmitting a priority of the sounding signal; the processor is configured to: in the DSCH resource group to which the first DSCH subchannel belongs, detect whether the other DSCH subchannels having a higher priority than the first DSCH subchannel have The first detection signal.
  • the first detection signal carries a resource identifier of the occupied BTCH subchannel;
  • the second sounding signal carries a resource identifier of a BTCH subchannel for transmitting the service message.
  • the processor is configured to: if the processor does not detect the first detection signal, Determining, by the processor, a BTCH resource group corresponding to the DSCH resource group, for sending the service message; or, if the processor detects the first detection signal, determining, by the processor, the first Detecting a resource identifier of the BTCH subchannel carried in the signal, and determining that the BTCH subchannel corresponding to the resource identifier of the BTCH subchannel is not used, and determining that the BTCH subgroup is not included in the BTCH resource group Other BTCH of the channel The subchannel is used to send the service message.
  • the BTCH resource group includes Different BTCH subchannels have different second priorities, the second priority is a priority for transmitting a service message, and the transmitter is specifically configured to use a BTCH subchannel with the highest priority among the BTCH resource groups.
  • the service message is sent in broadcast form.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; a combination of the DSCH segment identifier and the DSCH contention resource number corresponding to a DSCH resource index value, where the DSCH resource index value is used to identify the first DSCH sub- channel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; a combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponding to a DSCH resource index value, the DSCH The resource index value is used to identify the first DSCH subchannel.
  • the DSCH resource group is in one-to-one correspondence with the BTCH resource group.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCHs One or more of the DSCH resource groups are included in the segment, and each of the BTCH segments includes one or more of the BTCH resource groups.
  • an embodiment of the present invention provides a base station, including: a receiver, configured to connect Receiving a scheduling request sent by the user equipment; the transmitter is configured to send, to the user equipment, the sounding scheduling channel DSCH information that is responsive to the scheduling request; the DSCH information is used by the user equipment to determine, according to the DSCH information, a DSCH subchannel, and the user equipment detects a first sounding signal in a DSCH resource group to which the first DSCH subchannel belongs, and determines a broadcast transmission for transmitting a service message according to the detection result of the first sounding signal.
  • a channel BTCH resource group and transmitting the service message in a broadcast form on a BTCH subchannel in the BTCH resource group, and transmitting a second sounding signal on the first DSCH subchannel, where the DSCH resource group is included
  • At least one DSCH subchannel the at least one DSCH subchannel includes the first DSCH subchannel
  • the BTCH resource group includes at least one BTCH subchannel
  • the DSCH resource group corresponds to the BTCH resource group.
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is configured by the base station The priority of the send probe.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; the DSCH segment identifier and The combination of the DSCH contention resource numbers corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; The combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, where the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH resource group and the The BTCH resource groups correspond one-to-one.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCH segments includes one or more of the foregoing.
  • the embodiment of the invention provides a scheduling method, a user equipment and a base station of a broadcast resource.
  • the base station sends the probe scheduling channel DSCH information to the user equipment, and the user equipment determines the first DSCH subchannel according to the DSCH information, and detects the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs, and determines by using the first sounding signal.
  • a BTCH resource group for transmitting a broadcast service message further transmitting a broadcast service message through a BTCH subchannel in the BTCH resource group, and transmitting a second sounding signal on the first DSCH subchannel. Therefore, the conflict problem of acquiring BTCH subchannels by different user equipments is solved, and network congestion is avoided. In turn, the communication delay is reduced, and the reliability of the broadcast communication in the Internet of Vehicles is improved.
  • FIG. 1 is a flowchart of a method for scheduling a broadcast resource according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a subframe according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a BTCH segment according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for scheduling a broadcast resource according to another embodiment of the present invention.
  • FIG. 5 is a signaling flowchart of a method for scheduling a broadcast resource according to another embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for mapping a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length and a DSCH resource index value according to another embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to another embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a user equipment according to still another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for scheduling a broadcast resource according to an embodiment of the present invention.
  • the method provided by the embodiment of the present invention is applicable to an implementation scenario in which a vehicle transmits a broadcast service message in a car network, and the user equipment in the car network is a vehicle. Terminal devices installed on it, such as Global Positioning System (GPS), mobile communication devices, etc.
  • GPS Global Positioning System
  • the executor of the method may be a user equipment, and specifically includes the following steps:
  • Step 101 The user equipment sends a scheduling request to the base station.
  • the user equipment sends an active security service message, including the vehicle's own status information or alarm information, in a regional broadcast manner to notify a certain range of vehicles around it in order to avoid danger.
  • the user equipment needs to send a scheduling request to the base station through the uplink data channel, and is used to request a Broadcast Transport Channel (BTCH) subchannel for transmitting the service message.
  • BTCH Broadcast Transport Channel
  • Step 102 The user equipment receives the Detection Scheduling Channel (DSCH) information that is sent by the base station and is in response to the scheduling request.
  • DSCH Detection Scheduling Channel
  • the DSCH information may include: a DSCH segment identifier and a DSCH contention resource number.
  • the combination of the DSCH segment identifier and the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where The combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • Step 103 The user equipment determines the first DSCH subchannel according to the DSCH information.
  • the DSCH resource index value can be determined according to the DSCH information, wherein the DSCH resource index value is used to identify the first DSCH subchannel.
  • Step 104 The user equipment detects the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs.
  • the DSCH resource group includes at least one DSCH subchannel, and at least one DSCH subchannel includes a first DSCH subchannel; thus, it can be seen that the first DSCH subchannel belongs to a certain DSCH resource group, because the DSCH resource group also There are other DSCH sub-channels, and the DSCH resource group is corresponding to the BTCH resource group.
  • the DSCH resource group is in one-to-one correspondence with the BTCH resource group. After the user equipment determines the first DSCH subchannel, it will be in the first DSCH.
  • a certain BTCH subchannel in the BTCH resource group corresponding to the DSCH resource group to which the subchannel belongs belongs to send a service message.
  • the first sounding signal carries the resource identifier of the occupied BTCH subchannel; therefore, the user equipment detects the first sounding signal in the DSCH resource group to determine the BTCH subchannel that can be used in the BTCH resource group.
  • the different DCSH sub-channels included in the DSCH resource group have different first priorities, and the first priority is a priority of the sent probe signal configured by the base station, and therefore, the user equipment belongs to the first DSCH sub-channel.
  • the detecting the first sounding signal in the DSCH resource group includes: the user equipment, in the DSCH resource group to which the first DSCH subchannel belongs, detecting whether the first sounding is higher than the other DSCH subchannels having the higher priority than the first DSCH subchannel signal.
  • An index value corresponding to each DSCH subchannel in the DSCH resource group may be set, where the smaller the index value, the higher the priority of the corresponding DSCH subchannel scheduling, the index value may be the DSCH contention number, and the index is determined. The method of the value is not limited to this.
  • Step 105 The user equipment determines, according to the detection result of the first sounding signal, a broadcast transmission channel BTCH resource group for transmitting a service message.
  • the BTCH resource group includes at least one BTCH sub-channel, and the DSCH resource group corresponds to the BTCH resource group.
  • the DSCH resource group has a one-to-one correspondence with the BTCH resource group.
  • the user equipment does not detect the first sounding signal in the DSCH resource group, determining that the BTCH resource group corresponding to the DSCH resource group is used to send the service message; or
  • the user equipment determines the resource identifier of the BTCH subchannel carried in the first sounding signal, and determines that the BTCH subchannel corresponding to the resource identifier of the BTCH subchannel is not used, And determining to use other BTCH subchannels in the BTCH resource group that do not include the BTCH subchannel for transmitting service messages.
  • Step 106 The user equipment sends a service message in a broadcast form on a BTCH subchannel in the BTCH resource group, and sends a second sounding signal on the first DSCH subchannel.
  • the different BTCH subchannels included in the BTCH resource group have different second priorities, where the second priority is the priority of sending the service message; and the user equipment sends the broadcast in the broadcast mode on the BTCH subchannel in the BTCH resource group.
  • the service message specifically includes: the user equipment sends the service message in a broadcast manner on the BTCH subchannel with the highest priority in the BTCH resource group.
  • each DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each DSCH segment includes one or more DSCH resource groups, and each BTCH segment includes one or more BTCH resource groups.
  • 2 is a schematic structural diagram of a subframe according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a BTCH segment according to an embodiment of the present invention. As shown in FIG. 2, each DSCH segment includes one or more DSCH resource groups, and each BTCH segment includes one or more BTCH resource groups.
  • One of the subframes includes at least one DSCH segment and at least one BTCH segment in the frequency domain direction, and each DSCH segment has one DSCH segment identifier.
  • the BTCH segment includes at least two BTCH sub-segments in the time domain direction.
  • the user equipments using the BTCH subchannel No. 1 in the first BTCH sub-segment The service message sent by the user equipment using the BTCH subchannels 6, 11, and 16 cannot be heard.
  • the second BTCH subsection is obtained, so that 1, 6, 11
  • the 16th BTCH subchannels are in the same frequency domain, different time domains, and each user equipment repeatedly transmits the service message content, so that the user equipment using the BTCH subchannel No. 1 can hear the BTCH subchannels of 6, 11, and 16 The service message sent by the user equipment.
  • the DSCH contention resource number is a number made to the DSCH subchannel in each DSCH segment.
  • the present embodiment provides a scheduling method for a broadcast resource, including: receiving, by a user equipment, a sounding scheduling channel DSCH information that is sent by a base station in response to a scheduling request, and then determining a first DSCH subchannel according to the DSCH information, and in the first DSCH subchannel. Detecting a first sounding signal in the associated DSCH resource group, determining a broadcast transport channel BTCH resource group for transmitting a service message according to the detection result of the first sounding signal, and then transmitting the service in a broadcast manner on the BTCH subchannel in the BTCH resource group Message and send a second probe on the first DSCH subchannel Measuring signal.
  • the problem of the broadcast resource conflict existing in the end-to-end broadcast communication is solved, that is, the collision problem of the BTCH subchannel is acquired by different user equipments, and network congestion is avoided.
  • the communication delay is reduced, and the reliability of the broadcast communication in the Internet of Vehicles is improved.
  • FIG. 4 is a flowchart of a method for scheduling a broadcast resource according to another embodiment of the present invention.
  • the method provided by the embodiment of the present invention is applicable to an implementation scenario in which a vehicle sends a broadcast service message in a car network, and the execution entity of the method may be a base station.
  • the steps include the following steps:
  • Step 401 The base station receives a scheduling request sent by the user equipment.
  • the communication method of the active security service of the Internet of Vehicles is to broadcast the status information or alarm information of the own vehicle to the vehicle within a certain range around the vehicle in the form of a broadcast in order to avoid the occurrence of danger.
  • the status information or the alarm information is a service message, and the base station receives the scheduling request sent by the user equipment by using the uplink data channel.
  • Step 402 The base station sends the probe scheduling channel DSCH information in response to the scheduling request to the user equipment.
  • the DSCH information is used by the user equipment to determine the first DSCH subchannel according to the DSCH information, and the user equipment detects the first detection signal in the DSCH resource group to which the first DSCH subchannel belongs, and according to the detection result of the first detection signal.
  • the at least one DSCH subchannel includes at least one DSCH subchannel
  • the BTCH resource group includes at least one BTCH subchannel
  • the DSCH resource group corresponds to the BTCH resource group.
  • the different DCSH subchannels included in the DSCH resource group have different first priorities, where the first priority is a priority of a transmit probe configured by the base station.
  • the DSCH information may include: a DSCH segment identifier and a DSCH contention resource number.
  • the combination of the DSCH segment identifier and the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where DSCH segment identification, DSCH competition resources The combination of the number and the DSCH contention queue length corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each DSCH segment includes one or more DSCH resource groups, and each BTCH segment includes one or more BTCH resource groups.
  • the present embodiment provides a scheduling method for a broadcast resource scheduling method, including: receiving, by a base station, a scheduling request sent by a user equipment, and transmitting, to the user equipment, a sounding scheduling channel DSCH information in response to the scheduling request.
  • the user equipment determines the first DSCH subchannel according to the DSCH information, and the user equipment detects the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs, and determines, according to the detection result of the first sounding signal, the method for sending the service message.
  • the problem of broadcast resource conflicts in end-to-end broadcast communication avoids the occurrence of network congestion. In turn, the communication delay is reduced, and the reliability of the broadcast communication in the Internet of Vehicles is improved.
  • FIG. 5 is a signaling flowchart of a method for scheduling a broadcast resource according to another embodiment of the present invention.
  • the method provided by the embodiment of the present invention is applicable to an implementation scenario in which a vehicle sends a broadcast service message in a car network, and the embodiment is implemented in the foregoing.
  • the scheduling process of the broadcast resource one subframe is used as the scheduling period, and the signaling interaction process between the user equipment and the base station is performed.
  • the specific includes:
  • the user equipment sends a scheduling request message to the base station.
  • the communication method of the active security service of the Internet of Vehicles is to broadcast the status information or alarm information of the own vehicle to the vehicle within a certain range around the vehicle in the form of a broadcast in order to avoid the occurrence of danger.
  • the status information or the alarm information is a service message, and the scheduling request message sent by the user equipment to the base station through the uplink data channel. Used to request broadcast channel resources.
  • the base station sends, to the user equipment, the sounding scheduling channel DSCH information in response to the scheduling request.
  • the base station sends the probe scheduling channel DSCH information in response to the scheduling request to the user equipment.
  • the DSCH information may include: a DSCH segment identifier and a DSCH contention resource number. The combination of the DSCH segment identifier and the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where The combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the user equipment determines the first DSCH subchannel according to the DSCH information.
  • the user equipment detects the first detection signal in the DSCH resource group to which the first DSCH subchannel belongs.
  • the user equipment determines, according to the detection result of the first detection signal, a broadcast transmission channel BTCH resource group used to send the service message.
  • the DSCH resource group and the corresponding BTCH resource group are first established.
  • the present invention provides a seed frame structure in which: the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCH segments includes one or more of the DSCH resources.
  • the subframe structure includes two DSCH segments in the frequency domain direction, and the DSCH segment identifiers corresponding to the two DSCH segments are: DSCH-A and DSCH-B, respectively.
  • DSCH-A corresponds to an index value DSCH-A-index
  • DSCH-B corresponds to an index value DSCH-B-index.
  • the BTCH segment includes at least two BTCH sub-segments in the time domain direction, so that the service message can be repeatedly sent at different times to prevent the user equipments at the same time from being able to hear each other's service messages.
  • each of the BTCH sub-segments can also be divided into two parts according to the DSCH segment identifiers DSCH-A and DSCH-B, and the corresponding identifiers are BTCH-A and BTCH-B respectively.
  • the BTCH sub-segment includes M BTCH sub-channels.
  • the BTCH subchannel order corresponding numbers are 1 to M.
  • the method for scheduling the BTCH-A resource by the DSCH-A is given below, and the method for scheduling the BTCH-B resource by the DSCH-B is similar, and details are not described herein again.
  • the corresponding channel resources in BTCH-A are also divided into N groups, which are respectively labeled as BTCH-A-group-0, BTCH-A-group-1, ...
  • BTCH-A-group-N-1 BTCH-A-group-N-1
  • R-1 the maximum number of sub-channels in each BTCH-A-group-n
  • N 5
  • the number of subchannels included in DSCH-A is 30.
  • the channel resources in DSCH-A are divided into five groups: DSCH-A-group-0, DSCH-A-group-1, ... DSCH-A-group-4.
  • the DSCH-A subchannels included in DSCH-A-group-0 are: A0, A5, A10, A15, A20, A25;
  • the DSCH-A subchannels included in the DSCH-A-group-1 group are: A1, A6, A11, A16, A21, A26;
  • the DSCH-A subchannels included in the DSCH-A-group-2 group are: A2, A7, A12, A17, A22, A27;
  • the DSCH-A subchannels included in the DSCH-A-group-3 group are: A3, A8, A13, A18, A23, A28;
  • the DSCH-A subchannels included in the DSCH-A-group-4 group are: A4, A9, A14, A19, A24, and A29.
  • BTCH-A includes 10 BTCH subchannels, and the corresponding channel resources in BTCH-A are also divided into 5 groups, which are labeled as BTCH-A-group-0, BTCH-A-group-1, etc.
  • BTCH-A-group -4 wherein each subchannel is arranged in BTCH-A-group-n in the order of BTCH-A-index, and the maximum number of subchannels in each BTCH-A-group-n is recorded as 1.
  • the BTCH-A-index of the subchannels included in the BTCH-A-group-0 group is: 1, 2; the numbers in the group are: 0, 1;
  • the BTCH-A-index of the subchannel included in the BTCH-A-group-1 group is: 3, 4;
  • the internal numbers are: 0, 1;
  • the BTCH-A-index of the subchannels included in the BTCH-A-group-2 group is: 5, 6; the numbers in the group are: 0, 1;
  • the BTCH-A-index of the subchannels included in the BTCH-A-group-3 group is: 7, 8; the numbers in the group are: 0, 1;
  • the BTCH-A-index of the subchannels included in the BTCH-A-group-4 group is: 9, 10; the numbers in the group are: 0, 1.
  • the user equipment determines, according to the DSCH information, a DSCH resource group to which the first DSCH subchannel belongs, that is, which DSCH-A-group-n belongs to, because DSCH-A-group-n and BTCH-A-group-n
  • the correspondence is corresponding, and preferably, may be one-to-one correspondence, so the user equipment uses the corresponding BTCH-A-group-n as the initial available resource set.
  • the user equipment detects, in the corresponding DSCH resource group, a first sounding signal on other DSCH subchannels having a higher priority than the first DSCH subchannel corresponding to the user, wherein each of the first sounding signals carries each user equipment required
  • the BTCH subchannel resource identifier, the first sounding signal is a sequence set, which can be represented as q 0 , q 1 ..., q R-1 .
  • the above sequence set can adopt good autocorrelation characteristics.
  • the user equipment After detecting the detection signal on the other DSCH subchannels with higher priority than the first DSCH subchannel corresponding to the first DSCH resource group, the user equipment determines whether the BTCH-A-group-n is empty. If the BTCH-A-group-n is not empty, the user equipment uses the subchannel with the lowest number in the BTCH-A-group-n as the transmission resource of the next subframe, and sends a BTCH subchannel request message to the base station, and at the same time Transmitting a second sounding signal on the corresponding first DSCH subchannel. If the BTCH-A-group-n is empty, the user equipment does not have available BTCH subchannel resources in the current scheduling period.
  • the user equipment sends a BTCH subchannel request message to the base station.
  • the base station sends a BTCH subchannel response message to the user equipment.
  • the base station allocates a BTCH subchannel to the user equipment, and transmits a BTCH subchannel response cancellation. interest.
  • the user equipment can then send a broadcast service message in the next subframe.
  • consecutive T subframes are used as one scheduling period of the user equipment, and T subframes are respectively S(1), S(2)...S(T).
  • the DSCH information may include: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length correspond to the DSCH resource index value, and the DSCH resource index value is used to identify a first DSCH subchannel. Then S501 needs to be completed before the S(0) subframe.
  • the embodiment of the present invention provides a method for scheduling a broadcast resource, where the base station sends the DSCH information to the user equipment, and the user equipment detects the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs, between the user equipments.
  • the BTCH subchannel for transmitting the service message is determined by the detected first sounding signal, thereby solving the broadcast resource conflict problem existing in the end-to-end broadcast communication, and avoiding the occurrence of network congestion. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.
  • FIG. 6 is a flowchart of a DSCH segment identifier, a DSCH contention resource number, and a mapping method between a DSCH contention queue length and a DSCH resource index value according to another embodiment of the present invention.
  • the mapping method provided by the embodiment of the present invention is applicable to a scenario in which a continuous T subframes (T>1) are used as a scheduling period of the user equipment.
  • the user equipment can parse the belonging according to the DSCH information.
  • the DSCH segment identifier and the DSCH contention resource number and the DSCH contention queue length determine the first DSCH subchannel by mapping between the DSCH segment identifier and the DSCH contention resource number and the DSCH contention queue length and the DSCH resource index value.
  • the mapping between the DSCH segment identifier and the DSCH contention resource number and the DSCH contention queue length and the DSCH resource index value may be:
  • the user equipment defines a circular queue of the length of the DSCH competition queue, which is marked as Loop-Q.
  • T subframes T>1 are used as a scheduling period of the user equipment, and there is competition of the DSCH subchannel between the user equipments in one scheduling period, so for each user
  • the device sets a circular queue and establishes a circular queue to achieve fair competition between the user equipments to the DSCH subchannel.
  • L is the number of subchannels included in DSCH-A.
  • the queue Q is transformed to obtain a queue Q'.
  • the process of converting the queue Q to the queue Q' includes, but is not limited to, only this process: the L data sequences are filled in the X*Y matrix in the order of the preceding and following columns, then the columns are exchanged, and finally read in the preceding and following columns.
  • S607 and Loop-Q are cyclically shifted to the left by W bits.
  • n is not equal to T, then return to S604 to start execution.
  • n is equal to T, it ends.
  • S505 it is determined whether the user equipment satisfies the following two conditions: first, the user equipment obtains the DSCH subchannel in the current subframe; second, the user equipment has a broadcast service message to be sent in the current subframe. If both the above conditions are met, then S505 is performed; otherwise, the next scheduling period is restarted.
  • the embodiments of the present invention provide a mapping method between a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length and a DSCH resource index value. Since the present embodiment adopts consecutive T subframes (T>1) as one scheduling period of the user equipment, the time for the user equipment to request resources from the base station is saved, and the broadcast resource conflict problem existing in the end-to-end broadcast communication is solved. Avoid the emergence of network congestion. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • Embodiment of the present invention The method provided can be applied to an implementation scenario in which a vehicle transmits a broadcast service message in an Internet of Vehicles.
  • the user equipment includes: a sending module 701, a receiving module 702, a determining module 703, and a detecting module 704. specifically:
  • the sending module 701 is configured to send a scheduling request to the base station.
  • the user equipment sends an active security service message, including the vehicle's own status information or alarm information, in a regional broadcast manner to notify a certain range of vehicles around it in order to avoid danger.
  • the sending module 701 of the user equipment needs to send a scheduling request to the base station through the uplink data channel, for requesting the broadcast channel resource.
  • the receiving module 702 is configured to receive the probe scheduling channel DSCH information that is sent by the base station and is in response to the scheduling request.
  • the receiving module 702 receives the probe scheduling channel DSCH information sent by the base station, where the base station sends the sounding of the scheduling channel DSCH information, so that the user equipment determines the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number.
  • the DSCH segment identifier and the DSCH contention resource number correspond to one DSCH resource index value, and the DSCH resource index value is used to identify a first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where the DSCH segment identifier, the DSCH contention number, and the DSCH contention The queue length corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify a first DSCH subchannel.
  • the subframe structure has been introduced in the above embodiments, and details are not described herein again.
  • the determining module 703 is configured to determine the first DSCH subchannel according to the DSCH information.
  • the DSCH information sent by the base station to the user equipment may correspond to one DSCH resource index value, and the DSCH resource index value is used to identify a specific first DSCH subchannel. Therefore, the determining module 703 of the user equipment may determine the first DSCH subchannel belonging to the user equipment according to the DSCH information.
  • the detecting module 704 is configured to detect the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs.
  • Each of the first DSCH sub-channels is corresponding to the DSCH resource group, and the DSCH resource group and the BTCH resource group have a corresponding relationship.
  • the one-to-one correspondence is used, and the detection module 704 of each user equipment is The detection signal is detected in the DSCH resource group to which the first DSCH subchannel belongs. The purpose is to determine the BTCH resource group corresponding to the user equipment.
  • the first sounding signal carries the resource identifier of the BTCH subchannel that has been occupied.
  • the different DCSH sub-channels included in the DSCH resource group have different first priorities, and the first priority is the priority of the sent probe signal configured by the base station; the detecting module 704 is specifically configured to be in the first DSCH sub- In the DSCH resource group to which the channel belongs, it is detected whether the first detection signal has a higher priority than other DSCH subchannels of the first DSCH subchannel.
  • the determining module 703 is further configured to determine, by the user equipment, a broadcast transport channel BTCH resource group for transmitting a service message according to the detection result of the first sounding signal, where the BTCH resource group includes at least one BTCH subchannel, and the DSCH resource group corresponds to the BTCH resource group.
  • the determining module 703 is specifically configured to: if the detecting module 704 does not detect the first detecting signal, the determining module 703 determines that the BTCH resource group corresponding to the DSCH resource group is used to send a service message; or, if the detecting module 704 After detecting the first sounding signal, the determining module 703 determines the resource identifier of the BTCH subchannel carried in the first sounding signal, and determines that the BTCH subchannel corresponding to the resource identifier of the BTCH subchannel is not used, and determines that the BTCH resource group is to be used. Other BTCH subchannels that do not include a BTCH subchannel are used to transmit service messages.
  • the sending module 701 is further configured to send the service message in a broadcast form on the BTCH subchannel in the BTCH resource group, and send the second sounding signal on the first DSCH subchannel.
  • the second sounding signal carries a resource identifier of a BTCH subchannel for transmitting a service message.
  • the different BTCH sub-channels included in the BTCH resource group have different second priorities, the second priority is the priority of sending the service message, and the sending module 701 is specifically configured to use the BTCH with the highest priority in the BTCH resource group.
  • the service message is sent in broadcast form on the subchannel.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCH segments includes one or more of the DSCH resource groups, and each of the BTCHs One or more of the BTCH resource groups are included in the segment.
  • the embodiment provides a user equipment, including: a sending module, a receiving module, a determining module, and a detecting module.
  • the sending module is configured to send a scheduling request to the base station, and the receiving module
  • the determining module is configured to determine a first DSCH subchannel according to the DSCH information
  • the detecting module is configured to detect the first detection signal in the DSCH resource group to which the first DSCH subchannel belongs, and determine the module. It is also used to determine a BTCH resource group, and the last sending module is further configured to send a broadcast service message through a BTCH subchannel in the BTCH resource group, and send a second sounding signal on the first DSCH subchannel.
  • the problem of the broadcast resource conflict existing in the end-to-end broadcast communication is solved, that is, the conflict problem of acquiring the BTCH subchannel between different user equipments is solved, and the network congestion is avoided. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.
  • FIG. 8 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • the method provided by the embodiment of the present invention can be applied to an implementation scenario in which a vehicle transmits a broadcast service message in an Internet of Vehicles.
  • the base station includes: a receiving module 801 and a sending module 802. specifically:
  • the receiving module 801 is configured to receive a scheduling request sent by the user equipment.
  • the communication method of the active security service of the Internet of Vehicles is to broadcast the status information or alarm information of the own vehicle to the vehicle within a certain range around the vehicle in the form of a broadcast in order to avoid the occurrence of danger.
  • the status information or the alarm information is a service message, and the receiving module 801 of the base station receives the scheduling request sent by the user equipment by using the uplink data channel.
  • the sending module 802 is configured to send, to the user equipment, the sounding scheduling channel DSCH information in response to the scheduling request.
  • the base station sending module 802 sends the probe scheduling channel DSCH information to the user equipment, so that the user equipment can determine the first DSCH subchannel.
  • the DSCH information is used by the user equipment to determine the first DSCH subchannel according to the DSCH information, and the user equipment detects the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs, and determines, according to the detection result of the first sounding signal, Transmitting a broadcast transport channel BTCH resource group of the service message, and transmitting the service message in a broadcast form on the BTCH subchannel in the BTCH resource group, and transmitting the second sounding signal on the first DSCH subchannel, the DSCH resource group including at least one
  • the DSCH subchannel includes at least one DSCH subchannel including a first DSCH subchannel, a BTCH resource group including at least one BTCH subchannel, and a DSCH resource group corresponding to the BTCH resource group.
  • the different DCSH sub-channels included in the DSCH resource group have different first priorities.
  • the first priority is the priority of the sent probe signal configured by the base station
  • the DSCH information includes: The DSCH segment identifier and the DSCH contention resource number; the combination of the DSCH segment identifier and the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; a combination of a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length corresponding to a DSCH resource index value, where the DSCH resource index value is used to identify the first A DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier and a DSCH contention resource number.
  • the combination of the DSCH segment identifier and the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where The combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each DSCH segment includes one or more DSCH resource groups, and each BTCH segment includes one or more BTCH resource groups.
  • This embodiment provides a base station, including: a receiving module, a sending module, and an allocating module.
  • the receiving module is configured to receive a scheduling request sent by the user equipment, where the sending module is configured to send the probing and scheduling channel DSCH information to the user equipment, where the user equipment determines the first DSCH subchannel according to the DSCH information, and the user equipment is in the first DSCH subchannel.
  • the second detection signal is sent on the channel, which solves the problem of broadcast resource conflicts in the end-to-end broadcast communication and avoids network congestion. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.
  • FIG. 9 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
  • the method provided by the embodiment of the present invention can be applied to an implementation scenario in which a vehicle transmits a broadcast service message in an Internet of Vehicles.
  • the user equipment includes a transmitter 901, a receiver 902, and a processor 903. specifically:
  • the transmitter 901 is configured to send a scheduling request to the base station.
  • the user equipment sends an active security service message, including the vehicle's own status information or alarm information, in a regional broadcast manner to notify a certain range of vehicles around it in order to avoid danger.
  • the transmitter 901 of the user equipment needs to send a scheduling request to the base station through the uplink data channel for requesting the broadcast channel resource.
  • the receiver 902 is configured to receive the probe scheduling channel DSCH information that is sent by the base station and is in response to the scheduling request.
  • the receiver 902 receives the probe scheduling channel DSCH information sent by the base station, where the base station transmits the sounding of the scheduling channel DSCH information, so that the user equipment determines the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number.
  • the DSCH segment identifier and the DSCH contention resource number correspond to one DSCH resource index value, and the DSCH resource index value is used to identify a first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where the DSCH segment identifier, the DSCH contention number, and the DSCH contention The queue length corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify a first DSCH subchannel.
  • the subframe structure has been introduced in the above embodiments, and details are not described herein again.
  • the processor 903 is configured to determine the first DSCH subchannel according to the DSCH information.
  • the DSCH information sent by the base station to the user equipment may correspond to one DSCH resource index value, and the DSCH resource index value is used to identify a specific first DSCH subchannel. Therefore, the processor 903 of the user equipment can determine the first DSCH subchannel belonging to the user equipment according to the DSCH information.
  • the processor 903 is further configured to detect the first detection signal in the DSCH resource group to which the first DSCH subchannel belongs.
  • Each of the first DSCH sub-channels is corresponding to the DSCH resource group, where the DSCH resource group and the BTCH resource group are corresponding, preferably, may be one-to-one correspondence, and the processor 903 of each user equipment is at the first Detection in the DSCH resource group to which the DSCH subchannel belongs Probe signal.
  • the purpose is to determine the BTCH resource group corresponding to the user equipment.
  • the first sounding signal carries the resource identifier of the BTCH subchannel that has been occupied.
  • the different DCSH sub-channels included in the DSCH resource group have different first priorities, where the first priority is the priority of the sent probe signal configured by the base station, and the processor 903 is specifically configured to be in the first DSCH sub- In the DSCH resource group to which the channel belongs, it is detected whether the first detection signal has a higher priority than other DSCH subchannels of the first DSCH subchannel.
  • the processor 903 is further configured to determine, by the user equipment, a broadcast transport channel BTCH resource group for transmitting a service message according to the detection result of the first sounding signal, where the BTCH resource group includes at least one BTCH subchannel, and the DSCH resource group corresponds to the BTCH resource group.
  • the processor 903 is specifically configured to: if the processor 903 does not detect the first sounding signal, the processor 903 determines that the BTCH resource group corresponding to the DSCH resource group is used to send a service message; or, if the processor 903 Detecting the first sounding signal, the processor 903 determines the resource identifier of the BTCH subchannel carried in the first sounding signal, and determines that the BTCH subchannel corresponding to the resource identifier of the BTCH subchannel is not used, and determines that the BTCH resource group is to be used. Other BTCH subchannels that do not include a BTCH subchannel are used to transmit service messages.
  • the transmitter 901 is further configured to send a service message in a broadcast form on a BTCH subchannel in the BTCH resource group, and send a second sounding signal on the first DSCH subchannel.
  • the second sounding signal carries a resource identifier of a BTCH subchannel for transmitting a service message.
  • the different BTCH subchannels included in the BTCH resource group have different second priorities, where the second priority is the priority of sending the service message, and the transmitter 901 is specifically configured to use the BTCH with the highest priority in the BTCH resource group.
  • the service message is sent in broadcast form on the subchannel.
  • the time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each of the DSCH segments includes one or more of the DSCH resource groups, and each of the BTCHs One or more of the BTCH resource groups are included in the segment.
  • This embodiment provides a user equipment, including: a transmitter, a receiver, and a processor.
  • the transmitter is configured to send a scheduling request to the base station
  • the receiver is configured to receive the DSCH information of the sounding and scheduling channel sent by the base station
  • the processor is configured to determine the first DSCH subchannel according to the DSCH information
  • the processor is configured to use the DSCH resource that belongs to the first DSCH subchannel.
  • the first detection signal is detected in the group, and is also used to determine the BTCH resource group
  • the transmitter is further configured to send a broadcast service message through the BTCH subchannel in the BTCH resource group, and send the second message on the first DSCH subchannel.
  • Probe signal The problem of broadcast resource conflicts in end-to-end broadcast communication is solved, and network congestion is avoided. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.
  • FIG. 10 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • the method provided by the embodiment of the present invention can be applied to an implementation scenario in which a vehicle transmits a broadcast service message in an Internet of Vehicles.
  • the base station includes a receiver 1001 and a transmitter 1002. specifically:
  • the receiver 1001 is configured to receive a scheduling request sent by the user equipment.
  • the communication method of the active security service of the Internet of Vehicles is to broadcast the status information or alarm information of the own vehicle to the vehicle within a certain range around the vehicle in the form of a broadcast in order to avoid the occurrence of danger.
  • the status information or the alarm information is a service message, and the receiver 1001 of the base station receives the scheduling request sent by the user equipment through the uplink data channel.
  • the transmitter 1002 is configured to send, to the user equipment, the sounding scheduling channel DSCH information in response to the scheduling request.
  • the base station transmitter 1002 sends the probe scheduling channel DSCH information to the user equipment, so that the user equipment can determine the first DSCH subchannel.
  • the DSCH information is used by the user equipment to determine the first DSCH subchannel according to the DSCH information, and the user equipment detects the first sounding signal in the DSCH resource group to which the first DSCH subchannel belongs, and determines, according to the detection result of the first sounding signal, Transmitting a broadcast transport channel BTCH resource group of the service message, and transmitting the service message in a broadcast form on the BTCH subchannel in the BTCH resource group, and transmitting the second sounding signal on the first DSCH subchannel, the DSCH resource group including at least one
  • the DSCH subchannel includes at least one DSCH subchannel including a first DSCH subchannel, a BTCH resource group including at least one BTCH subchannel, and a DSCH resource group corresponding to the BTCH resource group.
  • the different DCSH sub-channels included in the DSCH resource group have different first priorities.
  • the first priority is the priority of the sent probe signal configured by the base station
  • the DSCH information includes: a DSCH segment identifier and a DSCH contention resource number; and a DSCH segment identifier.
  • the combination of the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information includes: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length; a combination of a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, a DSCH resource index value, and a DSCH resource index value. Used to identify the first DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier and a DSCH contention resource number.
  • the combination of the DSCH segment identifier and the DSCH contention resource number corresponds to the DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • the DSCH information may include: a DSCH segment identifier, a DSCH contention resource number, and a DSCH contention queue length, where The combination of the DSCH segment identifier, the DSCH contention resource number, and the DSCH contention queue length corresponds to a DSCH resource index value, and the DSCH resource index value is used to identify the first DSCH subchannel.
  • time-frequency resources occupied by the at least one DSCH segment and the at least one BTCH segment are located in one subframe in the time domain, and each DSCH segment includes one or more DSCH resource groups, and each BTCH segment includes one or more BTCH resource groups.
  • This embodiment provides a base station, including: a receiver and a transmitter.
  • the receiver is configured to receive a scheduling request sent by the user equipment, where the transmitter is configured to send the probing scheduling channel DSCH information to the user equipment, where the user equipment determines the first DSCH subchannel according to the DSCH information, and the user equipment belongs to the first DSCH subchannel.
  • the first sounding signal is detected in the DSCH resource group, and then the BTCH resource group is determined according to the detection result of the first sounding signal, and the service message is sent in a broadcast manner on the BTCH subchannel in the BTCH resource group, and is simultaneously on the first DSCH subchannel.
  • the second detection signal is sent to solve the problem of broadcast resource conflicts in the end-to-end broadcast communication, thereby avoiding network congestion. Thereby reducing the communication delay and improving the reliability of the broadcast communication in the vehicle network.

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Abstract

本发明提供了一种广播资源的调度方法、用户设备和基站,该方法包括:用户设备向基站发送调度请求,接收基站发送的响应于调度请求的探测调度信道DSCH信息,然后根据DSCH信息确定第一DSCH子信道;并且在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,最后在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号。从而解决不同用户设备获取BTCH子信道的冲突问题,避免了网络拥塞的出现。进而降低了通信时延,提高了车联网中广播通信的可靠性。

Description

广播资源的调度方法、用户设备和基站 技术领域
本发明实施例涉及通信技术领域,尤其涉及一种广播资源的调度方法、用户设备和基站。
背景技术
车联网即车辆互联网络,即车辆终端安装具有移动通讯功能的模块,可以利用该具有移动通讯功能的模块实现车辆之间的通讯,进而形成互联网络。每年,交通事故都带来了巨大的生命和财产损失。车联网可以进行主动安全类业务,即,车辆通过与其他车辆之间的通信,感知到该车辆的周围车辆的状态信息,根据该周围车辆的状态信息提前采取预防措施,以降低交通事故概率。在车联网中是通过广播的方式来进行主动安全类业务——即车辆将自身车辆的状态信息或者告警信息,以广播的形式,通知给该车辆周围一定范围内的其他车辆,以便避免危险的发生。
目前,对于广播资源的分配通常包括如下流程:用户设备在以广播形式发送业务消息前,先监听用于广播的广播资源的状态,在确定一段时间内没有其它设备使用该广播资源后,再等待一段随机时间后在该广播资源上以广播形式发送业务消息。
然而,在相邻的用户设备同时有业务消息要以广播形式发送的场景下,如果用户设备的随机时间选择相同,可能会造成广播资源的使用冲突,进而出现网络拥塞。
发明内容
本发明提供了一种广播资源的调度方法、用户设备和基站,解决了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
第一方面,本发明实施例提供了一种广播资源的调度方法,包括:用户设备向基站发送调度请求;用户设备接收基站发送的响应于调度请求的探测调度信道DSCH信息;用户设备根据DSCH信息确定第一DSCH子信道;用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,DSCH资源组中包括至少一个DSCH子信道,至少一个DSCH子信道包括第一DSCH子信道;用户设备根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与所述BTCH资源组对应;所述用户设备在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号。
结合第一方面,在第一方面的第一种可能实施方式中,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级;所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,具体包括:所述用户设备在所述第一DSCH子信道所属的DSCH资源组中,检测优先级高于所述第一DSCH子信道的其他DSCH子信道中是否具有所述第一探测信号。
结合第一方面或第一方面的第一种可能实施方式,在第一方面的第二种可能实施方式中,所述第一探测信号中携带已被占用的BTCH子信道的资源标识;所述第二探测信号中携带用于发送所述业务消息的BTCH子信道的资源标识。
结合第一方面的第二种可能实施方式,在第一方面的第三种可能实施方式中,所述用户设备根据所述第一探测信号的检测结果确定用于发送业务消息的BTCH资源组,具体包括:若所述用户设备在所述DSCH资源组中没有检测到所述第一探测信号,则确定所述DSCH资源组所对应的BTCH资源组用于发送所述业务消息;或,若所述用户设备在所述DSCH资源组中检测到所述第一探测信号,则所述用户设备确定所述第一探测信号中所携带的所述BTCH子信道的资源标识,并确定不使用所述BTCH子信道的资源标识对应的所述BTCH子信道,并确定将所述BTCH资源组中不包括所述BTCH子信道的其他BTCH子信道用于发送所述业务 消息。
结合第一方面或第一方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式,在第一方面的第四种可能实施方式中,所述BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,所述第二优先级为发送业务消息的优先级;所述用户设备在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,具体包括:所述用户设备在所述BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送所述业务消息。
结合第一方面或第一方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第一方面的第五种可能实施方式中,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第一方面或第一方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第一方面的第六种可能实施方式中,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第一方面或第一方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式或第五种可能实施方式或第六种可能实施方式,在第一方面的第七种可能实施方式中,所述DSCH资源组与所述BTCH资源组一一对应。
结合第一方面或第一方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式或第五种可能实施方式或第六种可能实施方式或第七种可能实施方式,在第一方面的第八种可能实施方式中,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
第二方面,本发明实施例提供了一种广播资源的调度方法,包括:基站接收用户设备发送的调度请求;所述基站向所述用户设备发送响应于所述调度请求的探测调度信道DSCH信息;所述DSCH信息用于,所述用户设备根据所述DSCH信息确定第一DSCH子信道,并且所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应。
结合第二方面,在第二方面的第一种可能实施方式中,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级。
结合第二方面或第二方面的第一种可能实施方式,在第二方面的第二种可能实施方式中,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第二方面或第二方面的第一种可能实施方式,在第二方面的第三种可能实施方式中,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第二方面或第二方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式,在第二方面的第四种可能实施方式中,所述DSCH资源组与所述BTCH资源组一一对应。
结合第二方面或第二方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第二方面的第五种可能实施方式中,至少一个DSCH段和至少一个BTCH段所占用的时频 资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
第三方面,本发明实施例提供了一种用户设备,包括:发送模块,用于向基站发送调度请求;接收模块,用于接收所述基站发送的响应于所述调度请求的探测调度信道DSCH信息;确定模块,用于根据所述DSCH信息确定第一DSCH子信道;检测模块,用于在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道;所述确定模块还用于所述用户设备根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应;所述发送模块还用于在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号。
结合第三方面,在第三方面的第一种可能实施方式中,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级;所述检测模块,具体用于在所述第一DSCH子信道所属的DSCH资源组中,检测优先级高于所述第一DSCH子信道的其他DSCH子信道中是否具有所述第一探测信号。
结合第三方面或第三方面的第一种可能实施方式,在第三方面的第二种可能实施方式中,所述第一探测信号中携带已被占用的BTCH子信道的资源标识;所述第二探测信号中携带用于发送所述业务消息的BTCH子信道的资源标识。
结合第三方面的第二种可能实施方式,在第三方面的第三种可能实施方式中,所述确定模块,具体用于:若所述检测模块没有检测到所述第一探测信号,则所述确定模块确定所述DSCH资源组所对应的BTCH资源组用于发送所述业务消息;或,若所述检测模块检测到所述第一探测信号,则所述确定模块确定所述第一探测信号中所携带的所述BTCH子信道的资源标识,并确定不使用所述BTCH子信道的资源标识对应的所述BTCH子信道,并确定将所述BTCH资源组中不包括所述BTCH子信 道的其他BTCH子信道用于发送所述业务消息。
结合第三方面或第三方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式,在第三方面的第四种可能实施方式中,所述BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,所述第二优先级为发送业务消息的优先级;所述发送模块,具体用于在所述BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送所述业务消息。
结合第三方面或第三方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第三方面的第五种可能实施方式中,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第三方面或第三方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第三方面的第六种可能实施方式中,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第三方面或第三方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式或第五种可能实施方式或第六种可能实施方式,在第三方面的第七种可能实施方式中,所述DSCH资源组与所述BTCH资源组一一对应。
结合第三方面或第三方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式或第五种可能实施方式或第六种可能实施方式或第七种可能实施方式,在第三方面的第八种可能实施方式中,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
第四方面,本发明实施例提供了一种基站,包括:接收模块,用于 接收用户设备发送的调度请求;发送模块,用于向所述用户设备发送响应于所述调度请求的探测调度信道DSCH信息;所述DSCH信息用于,所述用户设备根据所述DSCH信息确定第一DSCH子信道,并且所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应。
结合第四方面,在第四方面的第一种可能实施方式中,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级。
结合第四方面或第四方面的第一种可能实施方式,在第四方面的第二种可能实施方式中,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第四方面或第四方面的第一种可能实施方式,在第四方面的第三种可能实施方式中,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第四方面或第四方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式,在第四方面的第四种可能实施方式中,所述DSCH资源组与所述BTCH资源组一一对应。
结合第四方面或第四方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四方面的第四种可能实施方式,在第四方面的第五种可能实施方式中,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个 或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
第五方面,本发明实施例提供了一种用户设备,包括:发送器,用于向基站发送调度请求;接收器,用于接收所述基站发送的响应于所述调度请求的探测调度信道DSCH信息;处理器,用于根据所述DSCH信息确定第一DSCH子信道;所述处理器,还用于在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道;所述处理器还用于所述用户设备根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应;所述发送器还用于在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号。
结合第五方面,在第五方面的第一种可能实施方式中,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级;所述处理器,具体用于在所述第一DSCH子信道所属的DSCH资源组中,检测优先级高于所述第一DSCH子信道的其他DSCH子信道中是否具有所述第一探测信号。
结合第五方面或第五方面的第一种可能实施方式,在第五方面的第二种可能实施方式中,所述第一探测信号中携带已被占用的BTCH子信道的资源标识;所述第二探测信号中携带用于发送所述业务消息的BTCH子信道的资源标识。
结合第五方面的第二种可能实施方式,在第五方面的第三种可能实施方式中,所述处理器,具体用于:若所述处理器没有检测到所述第一探测信号,则所述处理器确定所述DSCH资源组所对应的BTCH资源组用于发送所述业务消息;或,若所述处理器检测到所述第一探测信号,则所述处理器确定所述第一探测信号中所携带的所述BTCH子信道的资源标识,并确定不使用所述BTCH子信道的资源标识对应的所述BTCH子信道,并确定将所述BTCH资源组中不包括所述BTCH子信道的其他BTCH 子信道用于发送所述业务消息。
结合第五方面或第五方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式,在第五方面的第四种可能实施方式中,所述BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,所述第二优先级为发送业务消息的优先级;所述发送器,具体用于在所述BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送所述业务消息。
结合第五方面或第五方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第五方面的第五种可能实施方式中,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第五方面或第五方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第五方面的第六种可能实施方式中,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第五方面或第五方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式或第五种可能实施方式或第六种可能实施方式,在第五方面的第七种可能实施方式中,所述DSCH资源组与所述BTCH资源组一一对应。
结合第五方面或第五方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式或第五种可能实施方式或第六种可能实施方式或第七种可能实施方式,在第五方面的第八种可能实施方式中,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
第六方面,本发明实施例提供了一种基站,包括:接收器,用于接 收用户设备发送的调度请求;发送器,用于向所述用户设备发送响应于所述调度请求的探测调度信道DSCH信息;所述DSCH信息用于,所述用户设备根据所述DSCH信息确定第一DSCH子信道,并且所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应。
结合第六方面,在第六方面的第一种可能实施方式中,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级。
结合第六方面或第六方面的第一种可能实施方式,在第六方面的第二种可能实施方式中,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第六方面或第六方面的第一种可能实施方式,在第六方面的第三种可能实施方式中,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
结合第六方面或第六方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式,在第六方面的第四种可能实施方式中,所述DSCH资源组与所述BTCH资源组一一对应。
结合第六方面或第六方面的第一种可能实施方式或第二种可能实施方式或第三种可能实施方式或第四种可能实施方式,在第六方面的第五种可能实施方式中,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述 DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
本发明实施例提供了一种广播资源的调度方法、用户设备和基站。基站向用户设备发送探测调度信道DSCH信息,用户设备根据该DSCH信息确定第一DSCH子信道,并在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,通过第一探测信号来确定用于发送广播业务消息的BTCH资源组,进而通过BTCH资源组中的BTCH子信道发送广播业务消息,并在第一DSCH子信道上发送第二探测信号。从而解决了不同用户设备获取BTCH子信道的冲突问题,避免了网络拥塞的出现。进而降低了通信时延,提高了车联网中广播通信的可靠性。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简要介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域的普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为本发明一实施例提供的广播资源的调度方法的流程图;
图2为本发明一实施例提供的子帧结构示意图;
图3为本发明一实施例提供的BTCH段的结构示意图;
图4为本发明另一实施例提供的广播资源的调度方法的流程图;
图5为本发明再一实施例提供的广播资源的调度方法的信令流程图;
图6为本发明又一实施例提供的DSCH段标识,DSCH竞争资源编号和DSCH竞争队列长度与DSCH资源索引值之间的映射方法的流程图;
图7为本发明一实施例提供的用户设备的结构示意图;
图8为本发明另一实施例提供的基站的结构示意图;
图9为本发明再一实施例提供的用户设备的结构示意图;
图10为本发明又一实施例提供的基站的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中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发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
图1为本发明一实施例提供的广播资源的调度方法的流程图,本发明实施例提供的方法可适用于车联网中车辆发送广播业务消息的实施场景,车联网中的用户设备即为车辆上安装的终端设备,例如:全球定位系统(Global Positioning System,GPS),移动通信设备等。
该方法的执行主体可以是一种用户设备,具体包括如下步骤:
步骤101:用户设备向基站发送调度请求。
在车联网中,用户设备以区域广播的方式发送主动安全类业务消息,包括车辆自身的状态信息或者告警信息等,用以通知其周围一定范围内的车辆,以便避免危险的发生。在发送业务消息之前,用户设备需要通过上行数据信道向基站发送调度请求,用于请求发送业务消息的广播传输信道(Broadcast Transport Channel,BTCH)子信道。
步骤102:用户设备接收基站发送的响应于调度请求的探测调度信道(Detection Scheduling Channel,DSCH)信息。
作为一种可选的实施方式,若采用一个子帧作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
作为另一种可选地实施方式,若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
步骤103:用户设备根据DSCH信息确定第一DSCH子信道。
具体地,步骤102中已经描述到根据DSCH信息可以确定DSCH资源索引值,其中DSCH资源索引值用于标识第一DSCH子信道。
步骤104:用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号。
具体地,DSCH资源组中包括至少一个DSCH子信道,至少一个DSCH子信道包括第一DSCH子信道;由此可见,第一DSCH子信道是属于某一DSCH资源组,由于该DSCH资源组里面还有其他DSCH子信道,并且DSCH资源组跟BTCH资源组是对应的,优选的,DSCH资源组跟BTCH资源组是一一对应的,用户设备确定了第一DSCH子信道之后,会在第一DSCH子信道所属的DSCH资源组对应的BTCH资源组中某一BTCH子信道发送业务消息,因此存在不同的用户设备有可能会竞争同一个BTCH子信道的情况。可选地,第一探测信号中携带已被占用的BTCH子信道的资源标识;所以用户设备在这个DSCH资源组里面去检测第一探测信号目的是为了确定BTCH资源组中可使用的BTCH子信道。进一步地,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,该第一优先级为基站配置的发送探测信号的优先级,因此,用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,具体包括:用户设备在第一DSCH子信道所属的DSCH资源组中,检测优先级高于第一DSCH子信道的其他DSCH子信道中是否具有第一探测信号。其中可以设定DSCH资源组中每一个DSCH子信道对应一个索引值,其中索引值越小,则所对应的DSCH子信道调度优先级越高,该索引值可以为DSCH竞争资源编号,确定该索引值的方法不限于此。
步骤105:用户设备根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组。
其中,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与BTCH资源组对应,优选的,所述DSCH资源组与所述BTCH资源组一一对应。
进一步地,若用户设备在DSCH资源组中没有检测到第一探测信号,则确定DSCH资源组所对应的BTCH资源组用于发送所述业务消息;或,
若用户设备在DSCH资源组中检测到第一探测信号,则用户设备确定第一探测信号中所携带的BTCH子信道的资源标识,并确定不使用BTCH子信道的资源标识对应的BTCH子信道,并确定将BTCH资源组中不包括BTCH子信道的其他BTCH子信道用于发送业务消息。
步骤106:用户设备在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号。
其中BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,该第二优先级为发送业务消息的优先级;则用户设备在BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,具体包括:用户设备在BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送业务消息。
进一步地,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个DSCH段中包括一个或多个DSCH资源组,每个BTCH段中包括一个或多个BTCH资源组。图2为本发明一实施例提供的子帧结构示意图,图3为本发明一实施例提供的BTCH段的结构示意图。如图2所示,其中,每个DSCH段中包括一个或多个DSCH资源组,每个BTCH段中包括一个或多个BTCH资源组。其中一个子帧在频域方向上包括至少一个DSCH段和至少一个BTCH段,每个DSCH段分别具有一个DSCH段标识。如图3所示,BTCH段在时域方向上包括至少两个BTCH子段。这时为了考虑到处于同一时刻发送业务消息的用户设备互相无法侦听到彼此所发送的业务消息,例如,如图3中,在第一个BTCH子段中使用1号BTCH子信道的用户设备无法侦听到使用6,11,16号BTCH子信道的用户设备所发送的业务消息,因此,经过对第一个BTCH子段进行变换,得到第二个BTCH子段,使得1,6,11,16号BTCH子信道处于同一频域,不同时域,并且每一个用户设备重复发送业务消息内容,从而使用1号BTCH子信道的用户设备可以侦听到使用6,11,16号BTCH子信道的用户设备所发送的业务消息。进一步地,DSCH竞争资源编号是对每个DSCH段中的DSCH子信道所做的编号。
本实施例提供了一种广播资源的调度方法,包括:用户设备接收基站发送的响应于调度请求的探测调度信道DSCH信息,然后根据DSCH信息确定第一DSCH子信道,并在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,进而在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探 测信号。从而解决了端对端广播通信中存在的广播资源冲突问题,即不同用户设备获取BTCH子信道的冲突问题,避免了网络拥塞的出现。进而降低了通信时延,提高了车联网中广播通信的可靠性。
图4为本发明另一实施例提供的广播资源的调度方法的流程图,本发明实施例提供的方法可适用于车联网中车辆发送广播业务消息的实施场景,该方法的执行主体可以是基站,具体包括如下步骤:
步骤401、基站接收用户设备发送的调度请求。
车联网的主动安全类业务的通信方式是以区域广播——即用户设备将自身车辆的状态信息或者告警信息,以广播的形式,通知给其周围一定范围内的车辆,以便避免危险的发生。其中,状态信息或者告警信息均为业务消息,基站通过上行数据信道接收用户设备发送的调度请求。
步骤402、基站向用户设备发送响应于调度请求的探测调度信道DSCH信息。
具体地,DSCH信息用于,用户设备根据DSCH信息确定第一DSCH子信道,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号,其中DSCH资源组中包括至少一个DSCH子信道,至少一个DSCH子信道包括第一DSCH子信道,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与BTCH资源组对应。进一步地,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,该第一优先级为基站配置的发送探测信号的优先级。
作为一种可选的实施方式,若采用一个子帧作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
作为另一种可选地实施方式,若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源 编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
进一步地,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个DSCH段中包括一个或多个DSCH资源组,每个BTCH段中包括一个或多个BTCH资源组。
本实施例提供了一种广播资源的调度方法广播资源的调度方法,包括:基站接收用户设备发送的调度请求,并且向用户设备发送响应于调度请求的探测调度信道DSCH信息。其中用户设备根据DSCH信息确定第一DSCH子信道,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,最后在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,同时在第一DSCH子信道上发送第二探测信号,基站通过向用户设备发送DSCH信息从而实现了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。进而降低了通信时延,提高了车联网中广播通信的可靠性。
图5为本发明再一实施例提供的广播资源的调度方法的信令流程图,本发明实施例提供的方法可适用于车联网中车辆发送广播业务消息的实施场景,本实施例在上述实施例的基础上,提供了广播资源的调度过程中,以一个子帧作为调度周期,用户设备与基站之间的信令交互流程。
如图5所示,具体包括:
S501、用户设备向基站发送调度请求消息。
车联网的主动安全类业务的通信方式是以区域广播——即用户设备将自身车辆的状态信息或者告警信息,以广播的形式,通知给其周围一定范围内的车辆,以便避免危险的发生。其中,状态信息或者告警信息均为业务消息,用户设备通过上行数据信道向基站发送的调度请求消息。用于请求广播信道资源。
S502、基站向用户设备发送响应于调度请求的探测调度信道DSCH信息。
基站向用户设备发送响应于调度请求的探测调度信道DSCH信息,作为一种可选的实施方式,若采用一个子帧作为用户设备的一个调度周 期,则DSCH信息可以包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
作为另一种可选地实施方式,若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
S503、用户设备根据DSCH信息确定第一DSCH子信道。
S504、用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号。
S505、用户设备根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组。
用户设备向基站发送BTCH子信道请求消息之前,先要建立DSCH资源组和对应的BTCH资源组。本发明提供了一种子帧结构为:至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
具体地,假设子帧结构在频域方向上包括两个DSCH段,两个DSCH段所对应的DSCH段标识分别为:DSCH-A和DSCH-B。DSCH-A中每一个子信道对应有索引值DSCH-A-index,DSCH-B中每一个子信道对应有索引值DSCH-B-index。BTCH段在时域方向上包括至少两个BTCH子段,目的是可以在不同时刻上重复发送业务消息,避免处于同一时刻的用户设备之间无法收听到彼此的业务消息。并且根据DSCH段标识DSCH-A和DSCH-B也可以将每一个BTCH子段划分为两部分,分别对应的标识为BTCH-A和BTCH-B。假设BTCH子段包括M个BTCH子信道。BTCH子信道顺序对应编号为1至M。其中,每一个BTCH子信道在BTCH-A内的索引值记为:BTCH-A-index,BTCH-A-index=子信道编号,每一个BTCH子信道在BTCH-B内的索引值记为:BTCH-B-index,BTCH-B-index=子信道编号-M/2。
下面给出DSCH-A调度BTCH-A资源的方法,DSCH-B调度BTCH-B资源的方法类似,在此不再赘述。
将DSCH-A的信道资源分为N组,分别标记为:DSCH-A-group-0、DSCH-A-group-1……DSCH-A-group-N-1,其中DSCH-A-group-n(n=0,1……N-1)中包括索引值DSCH-A-index满足n=mod(DSCH-A-index,N)的所有子信道。规定每一个DSCH-A-group-n中DSCH-A-index越小,则所对应的DSCH子信道调度优先级越高。对应的BTCH-A中信道资源也被分为N组,分别标记为BTCH-A-group-0、BTCH-A-group-1……BTCH-A-group-N-1,其中每一个子信道按照BTCH-A-index顺序排入BTCH-A-group-n中,每个BTCH-A-group-n内子信道最大编号记为R-1。
例如:N=5,DSCH-A中包括的子信道的个数为30。则DSCH-A中的信道资源被分为5组,分别为:DSCH-A-group-0、DSCH-A-group-1……DSCH-A-group-4。
DSCH-A-group-0中包含的DSCH-A子信道为:A0、A5、A10、A15、A20、A25;
DSCH-A-group-1组中包含的DSCH-A子信道有:A1、A6、A11、A16、A21、A26;
DSCH-A-group-2组中包含的DSCH-A子信道有:A2、A7、A12、A17、A22、A27;
DSCH-A-group-3组中包含的DSCH-A子信道有:A3、A8、A13、A18、A23、A28;
DSCH-A-group-4组中包含的DSCH-A子信道有:A4、A9、A14、A19、A24、A29。
BTCH-A包括10个BTCH子信道,对应的BTCH-A中信道资源也被分为5组,分别标记为BTCH-A-group-0、BTCH-A-group-1……BTCH-A-group-4,其中每一个子信道按照BTCH-A-index顺序排入BTCH-A-group-n中,每个BTCH-A-group-n内子信道最大编号记为1。
BTCH-A-group-0组中包含的子信道的BTCH-A-index为:1、2;组内编号分别为:0,1;
BTCH-A-group-1组中包含的子信道的BTCH-A-index为:3、4;组 内编号分别为:0,1;
BTCH-A-group-2组中包含的子信道的BTCH-A-index为:5、6;组内编号分别为:0,1;
BTCH-A-group-3组中包含的子信道的BTCH-A-index为:7、8;组内编号分别为:0,1;
BTCH-A-group-4组中包含的子信道的BTCH-A-index为:9、10;组内编号分别为:0,1。
具体地,用户设备根据DSCH信息,确定第一DSCH子信道属于的DSCH资源组,即属于哪一个DSCH-A-group-n,由于DSCH-A-group-n与BTCH-A-group-n之间是对应的,优选的,可以是一一对应的,因此用户设备将所对应的BTCH-A-group-n作为初始可用资源集。用户设备在对应的DSCH资源组中检测比自己所对应的第一DSCH子信道优先级高的其它DSCH子信道上的第一探测信号,其中每一个第一探测信号携带每一个用户设备所需的BTCH子信道资源标识,第一探测信号为一个序列集,可以表示为q0,q1…,qR-1。为了确保用户设备之间第一探测信号发送的可靠性,上述序列集可以采用良好的自相关特性的
序列,例如Zadoff-Chu序列,
Figure PCTCN2014091674-appb-000001
r=0,1,……R-1。其中,NZC=11。若R=2时,
Figure PCTCN2014091674-appb-000002
若用户设备在DSCH-A-group-n中没有检测到第一探测信号,则确定DSCH-A-group-n对应的BTCH-A-group-n为用于发送广播业务消息的BTCH资源。若用户设备检测到第一探测信号,则将第一探测信号中所携带的BTCH子信道资源标识对应的BTCH子信道从BTCH-A-group-n中删除。用户设备在对应的DSCH资源组中检测完比自己所对应的第一DSCH子信道优先级高的其它DSCH子信道上的探测信号后,确定BTCH-A-group-n是否为空。若BTCH-A-group-n非空,则用户设备将BTCH-A-group-n中编号最小的子信道作为下一个子帧的传输资源,并且向基站发送BTCH子信道请求消息,同时在其对应的第一DSCH子信道上发送第二探测信号。若BTCH-A-group-n为空,则在本次调度周期内该用户设备没有可用的BTCH子信道资源。
S506、用户设备向基站发送BTCH子信道请求消息。
S507、基站向用户设备发送BTCH子信道响应消息。
基站向用户设备分配BTCH子信道,并且发送BTCH子信道响应消 息。用户设备则可以在下一个子帧发送广播业务消息。
需要说明的是,如果本实施例中采用连续T个子帧(T>1)作为用户设备的一个调度周期,T个子帧分别为S(1),S(2)……S(T)。则DSCH信息可以包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度对应DSCH资源索引值,DSCH资源索引值用于标识一个第一DSCH子信道。则S501需要在S(0)子帧之前完成。
本发明实施例提供了一种广播资源的调度方法,其中,基站通过向用户设备发送DSCH信息,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,用户设备之间通过检测到的第一探测信号确定用于发送业务消息的BTCH子信道,从而解决了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
图6为本发明又一实施例提供的DSCH段标识,DSCH竞争资源编号和DSCH竞争队列长度与DSCH资源索引值之间的映射方法的流程图。本发明实施例提供的映射方法适用于采用连续T个子帧(T>1)作为用户设备的一个调度周期的实施场景,在上述实施例的基础上,其中,用户设备根据DSCH信息可以解析出属于DSCH段标识和DSCH竞争资源编号和DSCH竞争队列长度,通过DSCH段标识和DSCH竞争资源编号和DSCH竞争队列长度与DSCH资源索引值之间的映射,确定第一DSCH子信道。进一步地,如图6所示,DSCH段标识和DSCH竞争资源编号和DSCH竞争队列长度与DSCH资源索引值之间的映射可以为:
S601、用户设备定义一个DSCH竞争队列长度的循环队列,标记为Loop-Q。
为了节省用户设备向基站请求资源的时间,将连续T个子帧(T>1)作为用户设备的一个调度周期,在一个调度周期内用户设备之间存在DSCH子信道的竞争,因此为每一个用户设备设置一个循环队列,通过建立循环队列从而实现用户设备之间可以公平竞争到DSCH子信道。
S602、按照DSCH竞争资源编号将循环队列Loop-Q对应位置置为1,其余位置置为0,置n=1。
S603、从Loop-Q的起始位置开始,顺序取出L个数据组成新的队列Q。
其中L为DSCH-A中所包括的子信道个数。
S604、队列Q进行变换,得到队列Q’。
具体地,队列Q变换到队列Q’过程包括但不限于仅此过程:L个数据顺序按照先行后列顺序填入X*Y矩阵,然后列交换,最后按照先行后列读出。
S605、队列Q’重新写入循环队列Loop-Q的前L个位置。
S606、循环队列Loop-Q中置为1的位置顺序号标记为Loop-Q-id。
如果Loop-Q-id<=L,则获得子帧S(n)的DSCH子信道,其中DSCH子信道的索引值DSCH-A-index为Loop-Q-id。
如果Loop-Q-id>L,则未获得子帧S(n)的DSCH子信道。
S607、Loop-Q向左循环移位W位。
其中W为固定值,包括但不限于:W=L-M。
S608、n=n+1。
S609、n==T。
如果n不等于T,则返回S604开始执行。
S610、结束。
如果n等于T,则结束。
进一步地,S505之前需判断用户设备是否满足如下两个条件:第一,用户设备在当前子帧获得到了DSCH子信道;第二,用户设备在当前子帧有广播业务消息要发送。若同时满足上述两个条件则进行S505,否则进入下一调度周期重新开始。
本发明实施例提供的是DSCH段标识,DSCH竞争资源编号和DSCH竞争队列长度与DSCH资源索引值之间的映射方法。由于本实施例采用连续T个子帧(T>1)作为用户设备的一个调度周期,因此节省了用户设备向基站请求资源的时间,并且解决了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
图7为本发明一实施例提供的用户设备的结构示意图。本发明实施例 提供的方法可适用于车联网中车辆发送广播业务消息的实施场景。如图7所示,其中用户设备包括:发送模块701、接收模块702、确定模块703和检测模块704。具体地:
发送模块701,用于向基站发送调度请求。
在车联网中,用户设备以区域广播的方式发送主动安全类业务消息,包括车辆自身的状态信息或者告警信息等,用以通知其周围一定范围内的车辆,以便避免危险的发生。在发送业务消息之前,用户设备的发送模块701需要通过上行数据信道向基站发送调度请求,用于请求广播信道资源。
接收模块702,用于接收基站发送的响应于调度请求的探测调度信道DSCH信息。
接收模块702接收基站发送的探测调度信道DSCH信息,其中基站发送探测调度信道DSCH信息的目的是使得用户设备确定第一DSCH子信道。
可选地,若采用一个子帧作为用户设备的一个调度周期,则DSCH信息包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号对应一个DSCH资源索引值,DSCH资源索引值用于标识一个第一DSCH子信道。
若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度对应DSCH资源索引值,DSCH资源索引值用于标识一个第一DSCH子信道。其中子帧结构在上面的实施例中已经介绍,在此不再赘述。
确定模块703,用于根据DSCH信息确定第一DSCH子信道。
由于基站发送给用户设备的DSCH信息可以对应一个DSCH资源索引值,而DSCH资源索引值用于标识一个具体的第一DSCH子信道。因此用户设备的确定模块703可以根据DSCH信息确定属于该用户设备的第一DSCH子信道。
检测模块704,用于在第一DSCH子信道所属的DSCH资源组中检测第一探测信号。
每一个第一DSCH子信道会对应到DSCH资源组中,其中DSCH资源组与BTCH资源组之间具有对应的关系,优选的,可以是一一对应的关系,每一个用户设备的检测模块704在第一DSCH子信道所属的DSCH资源组中检测探测信号。目的是为了确定该用户设备所对应的BTCH资源组。
可选地,第一探测信号中携带已被占用的BTCH子信道的资源标识。进一步地,DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,第一优先级为基站配置的发送探测信号的优先级;所述检测模块704,具体用于在第一DSCH子信道所属的DSCH资源组中,检测优先级高于第一DSCH子信道的其他DSCH子信道中是否具有第一探测信号。
确定模块703还用于用户设备根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与BTCH资源组对应。
可选地,确定模块703,具体用于:若检测模块704没有检测到第一探测信号,则确定模块703确定DSCH资源组所对应的BTCH资源组用于发送业务消息;或,若检测模块704检测到第一探测信号,则确定模块703确定第一探测信号中所携带的BTCH子信道的资源标识,并确定不使用BTCH子信道的资源标识对应的BTCH子信道,并确定将BTCH资源组中不包括BTCH子信道的其他BTCH子信道用于发送业务消息。
发送模块701还用于在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号。其中第二探测信号中携带用于发送业务消息的BTCH子信道的资源标识。其中BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,该第二优先级为发送业务消息的优先级;发送模块701,具体用于在BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送业务消息。进一步地,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
本实施例提供了一种用户设备,包括:发送模块、接收模块、确定模块和检测模块。其中,发送模块用于向基站发送调度请求,接收模块 用于接收基站发送的探测调度信道DSCH信息,确定模块用于根据DSCH信息确定第一DSCH子信道,检测模块用于在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,确定模块还用于确定BTCH资源组,最后发送模块还用于通过BTCH资源组中的BTCH子信道发送广播业务消息,并在第一DSCH子信道上发送第二探测信号。从而解决了端对端广播通信中存在的广播资源冲突问题,即解决了不同用户设备之间获取BTCH子信道所存在的冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
图8为本发明另一实施例提供的基站的结构示意图。本发明实施例提供的方法可适用于车联网中车辆发送广播业务消息的实施场景。如图8所示,其中基站包括:接收模块801和发送模块802。具体地:
接收模块801,用于接收用户设备发送的调度请求。
车联网的主动安全类业务的通信方式是以区域广播——即用户设备将自身车辆的状态信息或者告警信息,以广播的形式,通知给其周围一定范围内的车辆,以便避免危险的发生。其中,状态信息或者告警信息均为业务消息,基站的接收模块801通过上行数据信道接收用户设备发送的调度请求。
发送模块802,用于向用户设备发送响应于调度请求的探测调度信道DSCH信息。
具体地,基站发送模块802向用户设备发送探测调度信道DSCH信息,目的是使得用户设备可以确定第一DSCH子信道。DSCH信息用于,用户设备根据DSCH信息确定第一DSCH子信道,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号,DSCH资源组中包括至少一个DSCH子信道,至少一个DSCH子信道包括第一DSCH子信道,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与BTCH资源组对应。其中DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,第一优先级为基站配置的发送探测信号的优先级,DSCH信息包括: DSCH段标识以及DSCH竞争资源编号;DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识所述第一DSCH子信道。或者DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值用于标识所述第一DSCH子信道。
作为一种可选的实施方式,若采用一个子帧作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
作为另一种可选地实施方式,若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
进一步地,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个DSCH段中包括一个或多个DSCH资源组,每个BTCH段中包括一个或多个BTCH资源组。
本实施例提供了一种基站,包括:接收模块、发送模块和分配模块。其中,接收模块用于接收用户设备发送的调度请求,发送模块用于向用户设备发送探测调度信道DSCH信息,其中用户设备根据DSCH信息确定第一DSCH子信道,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,然后根据第一探测信号的检测结果确定BTCH资源组,并在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,同时在第一DSCH子信道上发送第二探测信号,解决了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
图9为本发明再一实施例提供的用户设备的结构示意图。本发明实施例提供的方法可适用于车联网中车辆发送广播业务消息的实施场景。如图9所示,其中用户设备包括:发送器901、接收器902和处理器903。 具体地:
发送器901,用于向基站发送调度请求。
在车联网中,用户设备以区域广播的方式发送主动安全类业务消息,包括车辆自身的状态信息或者告警信息等,用以通知其周围一定范围内的车辆,以便避免危险的发生。在发送业务消息之前,用户设备的发送器901需要通过上行数据信道向基站发送调度请求,用于请求广播信道资源。
接收器902,用于接收基站发送的响应于调度请求的探测调度信道DSCH信息。
接收器902接收基站发送的探测调度信道DSCH信息,其中基站发送探测调度信道DSCH信息的目的是使得用户设备确定第一DSCH子信道。
可选地,若采用一个子帧作为用户设备的一个调度周期,则DSCH信息包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号对应一个DSCH资源索引值,DSCH资源索引值用于标识一个第一DSCH子信道。
若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度对应DSCH资源索引值,DSCH资源索引值用于标识一个第一DSCH子信道。其中子帧结构在上面的实施例中已经介绍,在此不再赘述。
处理器903,用于根据DSCH信息确定第一DSCH子信道。
由于基站发送给用户设备的DSCH信息可以对应一个DSCH资源索引值,而DSCH资源索引值用于标识一个具体的第一DSCH子信道。因此用户设备的处理器903可以根据DSCH信息确定属于该用户设备的第一DSCH子信道。
处理器903,还用于在第一DSCH子信道所属的DSCH资源组中检测第一探测信号。
每一个第一DSCH子信道会对应到DSCH资源组中,其中DSCH资源组与BTCH资源组之间是对应的,优选的,可以是一一对应的,每一个用户设备的处理器903在第一DSCH子信道所属的DSCH资源组中检测 探测信号。目的是为了确定该用户设备所对应的BTCH资源组。
可选地,第一探测信号中携带已被占用的BTCH子信道的资源标识。进一步地,DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,第一优先级为基站配置的发送探测信号的优先级;所述处理器903,具体用于在第一DSCH子信道所属的DSCH资源组中,检测优先级高于第一DSCH子信道的其他DSCH子信道中是否具有第一探测信号。
处理器903还用于用户设备根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与BTCH资源组对应。
可选地,处理器903,具体用于:若处理器903没有检测到第一探测信号,则处理器903确定DSCH资源组所对应的BTCH资源组用于发送业务消息;或,若处理器903检测到第一探测信号,则处理器903确定第一探测信号中所携带的BTCH子信道的资源标识,并确定不使用BTCH子信道的资源标识对应的BTCH子信道,并确定将BTCH资源组中不包括BTCH子信道的其他BTCH子信道用于发送业务消息。
发送器901还用于在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号。其中第二探测信号中携带用于发送业务消息的BTCH子信道的资源标识。其中BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,该第二优先级为发送业务消息的优先级;发送器901,具体用于在BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送业务消息。进一步地,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
本实施例提供了一种用户设备,包括:发送器、接收器和处理器。其中,发送器用于向基站发送调度请求,接收器用于接收基站发送的探测调度信道DSCH信息,处理器用于根据DSCH信息确定第一DSCH子信道,处理器用于在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,还用于确定BTCH资源组,最后发送器还用于通过BTCH资源组中的BTCH子信道发送广播业务消息,并在第一DSCH子信道上发送第二 探测信号。解决了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
图10为本发明又一实施例提供的基站的结构示意图。本发明实施例提供的方法可适用于车联网中车辆发送广播业务消息的实施场景。如图10所示,其中基站包括:接收器1001和发送器1002。具体地:
接收器1001,用于接收用户设备发送的调度请求。
车联网的主动安全类业务的通信方式是以区域广播——即用户设备将自身车辆的状态信息或者告警信息,以广播的形式,通知给其周围一定范围内的车辆,以便避免危险的发生。其中,状态信息或者告警信息均为业务消息,基站的接收器1001通过上行数据信道接收用户设备发送的调度请求。
发送器1002,用于向用户设备发送响应于调度请求的探测调度信道DSCH信息。
具体地,基站发送器1002向用户设备发送探测调度信道DSCH信息,目的是使得用户设备可以确定第一DSCH子信道。DSCH信息用于,用户设备根据DSCH信息确定第一DSCH子信道,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,并在第一DSCH子信道上发送第二探测信号,DSCH资源组中包括至少一个DSCH子信道,至少一个DSCH子信道包括第一DSCH子信道,BTCH资源组中包括至少一个BTCH子信道,DSCH资源组与BTCH资源组对应。其中DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,第一优先级为基站配置的发送探测信号的优先级,DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识所述第一DSCH子信道。或者DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值 用于标识所述第一DSCH子信道。
作为一种可选的实施方式,若采用一个子帧作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识以及DSCH竞争资源编号。其中DSCH段标识以及DSCH竞争资源编号的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
作为另一种可选地实施方式,若采用连续T个子帧(T>1)作为用户设备的一个调度周期,则DSCH信息可以包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度,其中DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度的组合对应DSCH资源索引值,DSCH资源索引值用于标识第一DSCH子信道。
进一步地,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个DSCH段中包括一个或多个DSCH资源组,每个BTCH段中包括一个或多个BTCH资源组。
本实施例提供了一种基站,包括:接收器、发送器。其中,接收器用于接收用户设备发送的调度请求,发送器用于向用户设备发送探测调度信道DSCH信息,其中用户设备根据DSCH信息确定第一DSCH子信道,并且用户设备在第一DSCH子信道所属的DSCH资源组中检测第一探测信号,然后根据第一探测信号的检测结果确定BTCH资源组,并在BTCH资源组中的BTCH子信道上以广播形式发送业务消息,同时在第一DSCH子信道上发送第二探测信号,解决了端对端广播通信中存在的广播资源冲突问题,避免了网络拥塞的出现。从而降低了通信时延,提高了车联网中广播通信的可靠性。
最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (45)

  1. 一种广播资源的调度方法,其特征在于,包括:
    用户设备向基站发送调度请求;
    所述用户设备接收所述基站发送的响应于所述调度请求的探测调度信道DSCH信息;
    所述用户设备根据所述DSCH信息确定第一DSCH子信道;
    所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道;
    所述用户设备根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应;
    所述用户设备在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号。
  2. 根据权利要求1所述的方法,其特征在于,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级;
    所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,具体包括:
    所述用户设备在所述第一DSCH子信道所属的DSCH资源组中,检测优先级高于所述第一DSCH子信道的其他DSCH子信道中是否具有所述第一探测信号。
  3. 根据权利要求1或2所述的方法,其特征在于,所述第一探测信号中携带已被占用的BTCH子信道的资源标识;所述第二探测信号中携带用于发送所述业务消息的BTCH子信道的资源标识。
  4. 根据权利要求3所述的方法,其特征在于,所述用户设备根据所述第一探测信号的检测结果确定用于发送业务消息的BTCH资源组,具体包括:
    若所述用户设备在所述DSCH资源组中没有检测到所述第一探测信号,则确定所述DSCH资源组所对应的BTCH资源组用于发送所述业务消 息;或,
    若所述用户设备在所述DSCH资源组中检测到所述第一探测信号,则所述用户设备确定所述第一探测信号中所携带的所述BTCH子信道的资源标识,并确定不使用所述BTCH子信道的资源标识对应的所述BTCH子信道,并确定将所述BTCH资源组中不包括所述BTCH子信道的其他BTCH子信道用于发送所述业务消息。
  5. 根据权利要求1-4任一项所述的方法,其特征在于,所述BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,所述第二优先级为发送业务消息的优先级;
    所述用户设备在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,具体包括:
    所述用户设备在所述BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送所述业务消息。
  6. 根据权利要求1-5任一项所述的方法,其特征在于,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;
    所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  7. 根据权利要求1-5任一项所述的方法,其特征在于,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;
    所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  8. 根据权利要求1-7任一项所述的方法,其特征在于,所述DSCH资源组与所述BTCH资源组一一对应。
  9. 根据权利要求1-8任一项所述方法,其特征在于,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
  10. 一种广播资源的调度方法,其特征在于,包括:
    基站接收用户设备发送的调度请求;
    所述基站向所述用户设备发送响应于所述调度请求的探测调度信道DSCH信息;
    所述DSCH信息用于,所述用户设备根据所述DSCH信息确定第一DSCH子信道,并且所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应。
  11. 根据权利要求10所述的方法,其特征在于,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级。
  12. 根据权利要求10或11所述的方法,其特征在于,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;
    所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  13. 根据权利要求10或11所述的方法,其特征在于,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;
    所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  14. 根据权利要求10-13任一项所述的方法,其特征在于,所述DSCH资源组与所述BTCH资源组一一对应。
  15. 根据权利要求10-14任一项所述方法,其特征在于,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
  16. 一种用户设备,其特征在于,包括:
    发送模块,用于向基站发送调度请求;
    接收模块,用于接收所述基站发送的响应于所述调度请求的探测调度信道DSCH信息;
    确定模块,用于根据所述DSCH信息确定第一DSCH子信道;
    检测模块,用于在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道;
    所述确定模块还用于根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应;
    所述发送模块还用于在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号。
  17. 根据权利要求16所述的用户设备,其特征在于,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级;
    所述检测模块,具体用于在所述第一DSCH子信道所属的DSCH资源组中,检测优先级高于所述第一DSCH子信道的其他DSCH子信道中是否具有所述第一探测信号。
  18. 根据权利要求16或17所述的用户设备,其特征在于,所述第一探测信号中携带已被占用的BTCH子信道的资源标识;所述第二探测信号中携带用于发送所述业务消息的BTCH子信道的资源标识。
  19. 根据权利要求18所述的用户设备,其特征在于,所述确定模块,具体用于:
    若所述检测模块没有检测到所述第一探测信号,则所述确定模块确定所述DSCH资源组所对应的BTCH资源组用于发送所述业务消息;或,
    若所述检测模块检测到所述第一探测信号,则所述确定模块确定所述第一探测信号中所携带的所述BTCH子信道的资源标识,并确定不使用所述BTCH子信道的资源标识对应的所述BTCH子信道,并确定将所述BTCH资源组中不包括所述BTCH子信道的其他BTCH子信道用于发送所 述业务消息。
  20. 根据权利要求16-19任一项所述的用户设备,其特征在于,所述BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,所述第二优先级为发送业务消息的优先级;
    所述发送模块,具体用于在所述BTCH资源组中的优先级最高的BTCH子信道上以广播形式发送所述业务消息。
  21. 根据权利要求16-20任一项所述的用户设备,其特征在于,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;
    所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  22. 根据权利要求16-20任一项所述的用户设备,其特征在于,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;
    所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  23. 根据权利要求16-22任一项所述的用户设备,其特征在于,所述DSCH资源组与所述BTCH资源组一一对应。
  24. 根据权利要求16-23任一项所述的用户设备,其特征在于,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
  25. 一种基站,其特征在于,包括:
    接收模块,用于接收用户设备发送的调度请求;
    发送模块,用于向所述用户设备发送响应于所述调度请求的探测调度信道DSCH信息;
    所述DSCH信息用于,所述用户设备根据所述DSCH信息确定第一DSCH子信道,并且所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在所述BTCH资源组 中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应。
  26. 根据权利要求25所述的基站,其特征在于,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级。
  27. 根据权利要求25或26所述的基站,其特征在于,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;
    所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  28. 根据权利要求25或26所述的基站,其特征在于,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;
    所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  29. 根据权利要求25-28任一项所述的基站,其特征在于,所述DSCH资源组与所述BTCH资源组一一对应。
  30. 根据权利要求25-29任一项所述的基站,其特征在于,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
  31. 一种用户设备,其特征在于,包括:
    发送器,用于向基站发送调度请求;
    接收器,用于接收所述基站发送的响应于所述调度请求的探测调度信道DSCH信息;
    处理器,用于根据所述DSCH信息确定第一DSCH子信道;
    所述处理器,还用于在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所 述至少一个DSCH子信道包括所述第一DSCH子信道;
    所述处理器还用于所述用户设备根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应;
    所述发送器还用于在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号。
  32. 根据权利要求31所述的用户设备,其特征在于,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级;
    所述处理器,具体用于在所述第一DSCH子信道所属的DSCH资源组中,检测优先级高于所述第一DSCH子信道的其他DSCH子信道中是否具有所述第一探测信号。
  33. 根据权利要求31或32所述的用户设备,其特征在于,所述第一探测信号中携带已被占用的BTCH子信道的资源标识;所述第二探测信号中携带用于发送所述业务消息的BTCH子信道的资源标识。
  34. 根据权利要求33所述的用户设备,其特征在于,所述处理器,具体用于:
    若所述处理器没有检测到所述第一探测信号,则所述处理器确定所述DSCH资源组所对应的BTCH资源组用于发送所述业务消息;或,
    若所述处理器检测到所述第一探测信号,则所述处理器确定所述第一探测信号中所携带的所述BTCH子信道的资源标识,并确定不使用所述BTCH子信道的资源标识对应的所述BTCH子信道,并确定将所述BTCH资源组中不包括所述BTCH子信道的其他BTCH子信道用于发送所述业务消息。
  35. 根据权利要求31-34任一项所述的用户设备,其特征在于,所述BTCH资源组中包括的不同BTCH子信道具有不同的第二优先级,所述第二优先级为发送业务消息的优先级;
    所述发送器,具体用于在所述BTCH资源组中的优先级最高的BTCH 子信道上以广播形式发送所述业务消息。
  36. 根据权利要求31-35任一项所述的用户设备,其特征在于,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;
    所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  37. 根据权利要求31-35任一项所述的用户设备,其特征在于,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;
    所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  38. 根据权利要求31-37任一项所述的用户设备,其特征在于,所述DSCH资源组与所述BTCH资源组一一对应。
  39. 根据权利要求31-38任一项所述的用户设备,其特征在于,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
  40. 一种基站,其特征在于,包括:
    接收器,用于接收用户设备发送的调度请求;
    发送器,用于向所述用户设备发送响应于所述调度请求的探测调度信道DSCH信息;
    所述DSCH信息用于,所述用户设备根据所述DSCH信息确定第一DSCH子信道,并且所述用户设备在所述第一DSCH子信道所属的DSCH资源组中检测第一探测信号,并根据所述第一探测信号的检测结果确定用于发送业务消息的广播传输信道BTCH资源组,并在所述BTCH资源组中的BTCH子信道上以广播形式发送所述业务消息,并在所述第一DSCH子信道上发送第二探测信号,所述DSCH资源组中包括至少一个DSCH子信道,所述至少一个DSCH子信道包括所述第一DSCH子信道,所述BTCH资源组中包括至少一个BTCH子信道,所述DSCH资源组与所述BTCH资源组对应。
  41. 根据权利要求40所述的基站,其特征在于,所述DSCH资源组中包括的不同DCSH子信道具有不同的第一优先级,所述第一优先级为所述基站配置的发送探测信号的优先级。
  42. 根据权利要求40或41所述的基站,其特征在于,所述DSCH信息包括:DSCH段标识以及DSCH竞争资源编号;
    所述DSCH段标识以及所述DSCH竞争资源编号的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  43. 根据权利要求40或41所述的基站,其特征在于,所述DSCH信息包括:DSCH段标识、DSCH竞争资源编号和DSCH竞争队列长度;
    所述DSCH段标识、所述DSCH竞争资源编号和所述DSCH竞争队列长度的组合对应DSCH资源索引值,所述DSCH资源索引值用于标识所述第一DSCH子信道。
  44. 根据权利要求40-43任一项所述的基站,其特征在于,所述DSCH资源组与所述BTCH资源组一一对应。
  45. 根据权利要求40-44任一项所述的基站,其特征在于,至少一个DSCH段和至少一个BTCH段所占用的时频资源在时域上位于一个子帧,每个所述DSCH段中包括一个或多个所述DSCH资源组,每个所述BTCH段中包括一个或多个所述BTCH资源组。
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