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WO2017067236A1 - 支持非标准带宽的调度方法及基站 - Google Patents

支持非标准带宽的调度方法及基站 Download PDF

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Publication number
WO2017067236A1
WO2017067236A1 PCT/CN2016/089184 CN2016089184W WO2017067236A1 WO 2017067236 A1 WO2017067236 A1 WO 2017067236A1 CN 2016089184 W CN2016089184 W CN 2016089184W WO 2017067236 A1 WO2017067236 A1 WO 2017067236A1
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Prior art keywords
bandwidth
terminal
extended
system bandwidth
standard
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PCT/CN2016/089184
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English (en)
French (fr)
Inventor
刘振
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties

Definitions

  • the present application relates to, but is not limited to, wireless communication technologies, and in particular, to a scheduling method and a base station that support non-standard bandwidth.
  • LTE Long Term Evolution
  • the bandwidth owned by the operator may not be the standard bandwidth.
  • operators In order to be able to use the LTE network, operators have to use a standard bandwidth that is smaller than the bandwidth they have. For example, an operator has a bandwidth of 12 MHz. Finally, the operator can only use the standard bandwidth of 10 MHz, and the remaining 2 MHz bandwidth causes waste of spectrum resources.
  • Solution 1 Split the non-standard bandwidth into a combination of standard bandwidths, and then aggregate the two standard bandwidths by carrier aggregation.
  • This approach has the limitation that the non-standard bandwidth owned by the operator may not be exactly divided into several standard bandwidth combinations.
  • an operator has a 12MHz air interface bandwidth. In order to make full use of spectrum resources, it can only be divided into a combination of 10MHz and 1.4MHz standard bandwidth. There will still be some waste of spectrum resources and not all bandwidth combinations can be carrier aggregation. At the same time, it may be necessary to add hardware devices, resulting in increased costs.
  • Solution 2 In order to reduce and avoid the interference of adjacent frequencies, a fixed bandwidth is reserved for both ends of each standard bandwidth in the LTE protocol, and no useful data is transmitted. In order to make full use of the non-standard bandwidth that is owned, the standard bandwidth can be strictly filtered so that the protection bandwidth of the standard bandwidth reservation is smaller than the standard protection bandwidth. For example, if an operator has a non-standard bandwidth of 19.2 MHz, the standard protection bandwidth of 20 MHz bandwidth is 1 MHz, and the middle 18 MHz is used to transmit useful data. After strict filtering, the protection bandwidth at both ends of the 18MHz bandwidth is less than 1MHz, and the filtered protection bandwidth is 0.6MHz, so that the non-standard bandwidth of 19.2MHz can be used. This solution is only applicable to scenarios where the non-standard bandwidth is slightly smaller than the standard bandwidth, and cannot meet the requirements of diverse non-standard bandwidth.
  • Embodiments of the present invention provide a scheduling method and a base station that support non-standard bandwidth.
  • the scheduling method supporting the non-standard bandwidth provided by the embodiment of the present invention is applied to a base station, and the method includes:
  • the cross-carrier scheduling identifier is sent to the terminal that supports the non-standard bandwidth, where the cross-carrier scheduling identifier is used to indicate the terminal in the extended bandwidth and/or the Scheduling on the second system bandwidth.
  • the method further includes:
  • a physical resource block For a terminal supporting a non-standard bandwidth, a physical resource block (PRB) is allocated to the terminal at the extended bandwidth or the second system bandwidth, and the PRB of the extended bandwidth or the second system bandwidth is used.
  • the medium access control control unit MAC CE
  • the terminal allocates a PRB.
  • the method further includes: when the extended bandwidth or the second system bandwidth is separately scheduled, delivered in a Transmission Time Interval (TTI)
  • TTI Transmission Time Interval
  • One PDCCH schedules resources of the extended bandwidth or the second system bandwidth
  • two PDCCHs are sent in one TTI to respectively schedule the resources of the extended bandwidth and the second system bandwidth, and the DCI format in the PDCCH supports cross-carrier. Scheduling, the DCI distinguishes between the PDCCH of the extended bandwidth resource scheduling and the PDCCH of the second system bandwidth resource scheduling by the added CIF identifier bit.
  • the method further includes:
  • the MAC CE is sent to the terminal to notify the terminal to allocate the PRB to the terminal only in the extended bandwidth or the second system bandwidth.
  • the step of configuring the first system bandwidth and the second system bandwidth further includes: configuring the extended bandwidth and the location identifier of the second system bandwidth, where the location identifier represents the location Presetting a positional relationship between the extended bandwidth and the second system bandwidth.
  • the sending, by the broadcast information, the bandwidth of the second system to the terminal includes:
  • MIB Master Information Block
  • the uplink second system bandwidth is delivered in the system information block 2 (SIB2, System Information Block 2);
  • the downlink second system bandwidth and the uplink second system bandwidth are the same when the uplink second system bandwidth is absent in the SIB2.
  • the method further includes:
  • the following information is sent in the reconfiguration message: the first system bandwidth, the extended bandwidth and the location identifier of the second system bandwidth, and the cross-carrier scheduling identifier, so that The terminal calculates the extended bandwidth and its location.
  • the method further includes:
  • the terminal obtains the extended bandwidth and position.
  • the method further includes:
  • the terminal Distributing the following information in the broadcast information SIB2: the first system bandwidth, and the location identifier of the extended bandwidth and the second system bandwidth, so that the terminal calculates the extended bandwidth and its location;
  • the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the method further includes:
  • an extended bandwidth Distributing the following information in the broadcast information SIB2: an extended bandwidth, and a location identifier of the extended bandwidth and the second system bandwidth, so that the terminal obtains the extended bandwidth and its location;
  • the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the method further includes:
  • the PRB is allocated to the terminal at the extended bandwidth and the second system bandwidth.
  • a configuration unit configured to: configure a first system bandwidth and a second system bandwidth, where the first system bandwidth minus the second system bandwidth is an extended bandwidth;
  • a sending unit configured to: send the bandwidth of the second system to the terminal by using broadcast information
  • a receiving unit configured to: when the terminal accesses the cell in the second system bandwidth, receive, by the terminal, indication information used to indicate whether the terminal supports non-standard bandwidth;
  • the sending unit is further configured to: when determining that the terminal supports the non-standard bandwidth according to the indication information, sending a cross-carrier scheduling identifier to the terminal supporting the non-standard bandwidth, where the cross-carrier scheduling identifier is used to indicate the terminal Scheduling over the extended bandwidth and/or the second system bandwidth.
  • the base station further includes:
  • An allocating unit configured to allocate a PRB to the terminal in the extended bandwidth or the second system bandwidth for a terminal supporting a non-standard bandwidth, where the PRB of the extended bandwidth or the second system bandwidth cannot satisfy
  • the MAC CE is sent to the terminal to notify the terminal to allocate a PRB to the terminal at the extended bandwidth and the second system bandwidth.
  • the sending unit is further configured to: when the extended bandwidth or the second system bandwidth is separately scheduled, send a PDCCH to the extended bandwidth or the second system bandwidth in one TTI.
  • the resource is scheduled.
  • two PDCCHs are sent in one TTI to respectively schedule the resources of the extended bandwidth and the second system bandwidth, and the DCI in the PDCCH
  • the format supports cross-carrier scheduling, and the DCI distinguishes between the PDCCH of the extended bandwidth resource scheduling and the PDCCH of the second system bandwidth resource scheduling by the added CIF identifier bit.
  • the base station further includes:
  • the dynamic provisioning unit is configured to: when scheduling the resources of the extended bandwidth and the second system bandwidth simultaneously, according to the extended bandwidth and the second system bandwidth, the PRB utilization rate and the terminal requirements for the PRB are separately When the PRB of the extended bandwidth or the second system bandwidth can meet the requirement of the terminal, the MAC CE is sent to the terminal to notify the terminal that only the extended bandwidth or the second system bandwidth pair is The terminal allocates a PRB.
  • the configuration unit is further configured to: when configuring the first system bandwidth and the second system bandwidth, further configuring the extended bandwidth and the location identifier of the second system bandwidth, where the location identifier A preset positional relationship of the extended bandwidth and the second system bandwidth is characterized.
  • the sending unit is further configured to: send a downlink second system bandwidth in the MIB; and send an uplink second system bandwidth in the SIB2; wherein, when the SIB2 does not have the uplink In the case of the second system bandwidth, the downlink second system bandwidth is the same as the uplink second system bandwidth.
  • the sending unit is further configured to: end to support non-standard bandwidth And sending, in the reconfiguration message, the following information: the first system bandwidth, the extended bandwidth, and the location identifier of the second system bandwidth, and the cross-carrier scheduling identifier, so that the terminal calculates the location Describe the extended bandwidth and its location.
  • the base station further includes:
  • a computing unit configured to: calculate, for the terminal supporting the non-standard bandwidth, the extended bandwidth according to the second system bandwidth and the first system bandwidth;
  • the sending unit is further configured to: send the following information in the reconfiguration message: the extended bandwidth, the extended bandwidth and the location identifier of the second system bandwidth, and the cross-carrier scheduling identifier, so that The terminal obtains the extended bandwidth and its location.
  • the sending unit is further configured to: send the following information in the broadcast information SIB2: the first system bandwidth, and the extended bandwidth and the location identifier of the second system bandwidth, And causing the terminal to calculate the extended bandwidth and its location; and for the terminal that supports the non-standard bandwidth, the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the base station further includes:
  • a calculating unit configured to: calculate the extended bandwidth according to the second system bandwidth and the first system bandwidth
  • the sending unit is further configured to: send the following information in the broadcast information SIB2: an extended bandwidth, and a location identifier of the extended bandwidth and the second system bandwidth, so that the terminal obtains the extended bandwidth and The location of the cross-carrier scheduling identifier is sent in the reconfiguration message for the terminal that supports the non-standard bandwidth.
  • the base station further includes:
  • the first determining unit is configured to: determine whether the extended bandwidth meets the requirement of the terminal, and if yes, allocate a PRB to the terminal in the extended bandwidth;
  • the second judging unit is configured to: determine whether the bandwidth of the second system satisfies the requirement of the terminal when the extended bandwidth does not meet the requirement of the terminal, and if yes, allocate a PRB to the terminal in the second system bandwidth And when the second system bandwidth does not meet the terminal requirement, the PRB is allocated to the terminal in the extended bandwidth and the second system bandwidth.
  • Embodiments of the present invention provide a computer readable storage medium storing computer executable instructions. The above method is implemented when the computer executable instructions are executed by a processor.
  • the base station configures two system bandwidths, and the actual bandwidth owned by the operator is referred to as the first system bandwidth, and the standard bandwidth smaller than the first system bandwidth is referred to as the second system bandwidth, and the first system bandwidth is subtracted.
  • the second system bandwidth is called the extended bandwidth.
  • the base station sends the bandwidth of the second system to the terminal by using broadcast information.
  • the terminal searches for broadcast information. When the terminal accesses the cell, if the terminal supports non-standard bandwidth, the terminal sends the terminal to support non-standard bandwidth.
  • the base station If the non-standard bandwidth is not sent, the base station considers that the terminal only supports standard bandwidth; for supporting non-standard bandwidth
  • the terminal sends a cross-carrier scheduling identifier to the base station, and the terminal can use the physical downlink control channel (PDCCH, Physic Downlink Control Channel) in the second system bandwidth to schedule the PRB on the second system bandwidth and/or the extended bandwidth;
  • the base station For a non-standard bandwidth terminal, the base station first allocates a PRB to the terminal in the extended bandwidth or the second system bandwidth. If the PRB of the extended bandwidth or the second system bandwidth cannot meet the terminal requirement, the base station sends a MAC CE to notify the terminal.
  • PDCCH Physical Downlink Control Channel
  • the base station performs PRB allocation on the terminal simultaneously with the extended bandwidth and the second system bandwidth; after the base station performs PRB allocation on the extended bandwidth and the second system bandwidth, the base station dynamically dynamically allocates the PRB and the bandwidth remaining according to the terminal needs.
  • the case of the PRB notifying the terminal only in the extended bandwidth or the second system It is distributed on the PRB.
  • the terminal and the base station supporting the non-standard bandwidth can perform data transmission on the second system bandwidth and the extended bandwidth; and the terminal that does not support the non-standard bandwidth can perform communication and data transmission with the base station in the second system bandwidth normal. Therefore, the base station in the embodiment of the present invention can enable the terminal supporting the standard bandwidth to work normally without any modification, thereby ensuring system compatibility.
  • a terminal supporting non-standard bandwidth it can use more air interface resource blocks of the base station, which can improve data throughput and improve spectrum utilization. It enables operators to make full use of the non-standard bandwidth they have and improve their spectrum resource utilization.
  • FIG. 1 is a schematic flowchart of a scheduling method for supporting a non-standard bandwidth according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • 3 is a schematic diagram showing the structure of a PRB in LTE
  • FIG. 5 is a schematic diagram of cross-carrier scheduling according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of scheduling of a non-standard bandwidth according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for supporting a non-standard bandwidth according to an embodiment of the present invention.
  • the scheduling method for supporting a non-standard bandwidth is applied to a base station.
  • the scheduling method for supporting a non-standard bandwidth includes The following steps:
  • Step 101 Configure a first system bandwidth and a second system bandwidth, and send the second system bandwidth to the terminal by using broadcast information, where the first system bandwidth minus the second system bandwidth is an extended bandwidth.
  • the extended bandwidth and the location identifier of the second system bandwidth are further configured, where the location identifier characterizes the extended bandwidth and the The preset positional relationship of the second system bandwidth.
  • the sending, by the broadcast information, the bandwidth of the second system to the terminal includes:
  • the uplink second system bandwidth is delivered in the SIB2;
  • the downlink second system bandwidth and the uplink second system bandwidth are the same when the uplink second system bandwidth is absent in the SIB2.
  • Step 102 When the terminal accesses the cell in the second system bandwidth, the terminal receives the indication information sent by the terminal to indicate whether the terminal supports the non-standard bandwidth.
  • a PRB is allocated to the terminal in the extended bandwidth or the second system bandwidth, and the PRB of the extended bandwidth or the second system bandwidth cannot be satisfied.
  • the MAC CE is sent to the terminal to notify the terminal.
  • the terminal is allocated a PRB at the extended bandwidth and the second system bandwidth.
  • one PDCCH is sent in one TTI to schedule resources of the extended bandwidth or the second system bandwidth;
  • two PDCCHs are sent in one TTI to respectively schedule the resources of the extended bandwidth and the second system bandwidth, and the DCI format used at this time is to support cross-carrier.
  • the scheduled DCI format that is, the CIF flag bit of the 3-bit is added in front of the DCI, and the PDCCH for the extended bandwidth resource scheduling and the PDCCH for the second system bandwidth resource scheduling are distinguished by the CFI flag.
  • the PRB is allocated to the terminal at the extended bandwidth and the second system bandwidth.
  • Step 103 When determining that the terminal supports the non-standard bandwidth according to the indication information, sending a cross-carrier scheduling identifier to the terminal supporting the non-standard bandwidth, where the cross-carrier scheduling identifier is used to indicate that the terminal is in the extended bandwidth and/or Or scheduling on the second system bandwidth.
  • the terminal that supports the non-standard bandwidth delivers at least the following information in the reconfiguration message: the first system bandwidth, the extended bandwidth, and the location identifier of the second system bandwidth, the cross
  • the carrier scheduling identifier is such that the terminal calculates the extended bandwidth and its location.
  • the terminal that supports the non-standard bandwidth calculates the extended bandwidth according to the second system bandwidth and the first system bandwidth.
  • At least the following information is sent in the broadcast information SIB2: the first system bandwidth, and the location identifier of the extended bandwidth and the second system bandwidth, so that the terminal Calculating the extended bandwidth and its location;
  • the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the extended bandwidth is calculated according to the second system bandwidth and the first system bandwidth
  • the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the MAC CE is sent to the terminal to notify the terminal that the extended bandwidth or the second system bandwidth is only The terminal allocates a PRB.
  • the base station includes:
  • the configuration unit 21 is configured to: configure a first system bandwidth and a second system bandwidth, where the first system bandwidth minus the second system bandwidth is an extended bandwidth;
  • the sending unit 22 is configured to: send the bandwidth of the second system to the terminal by using broadcast information;
  • the receiving unit 23 is configured to: when the terminal accesses the cell in the second system bandwidth, receive, by the terminal, indication information used to indicate whether the terminal supports non-standard bandwidth;
  • the sending unit 22 is further configured to: when determining that the terminal supports the non-standard bandwidth according to the indication information, sending a cross-carrier scheduling identifier to the terminal supporting the non-standard bandwidth, where the cross-carrier scheduling identifier is used to indicate The terminal schedules on the extended bandwidth and/or the second system bandwidth.
  • the base station may further include:
  • the allocating unit 24 is configured to: for a terminal supporting a non-standard bandwidth, allocate a PRB to the terminal in the extended bandwidth or the second system bandwidth, when the PRB of the extended bandwidth or the second system bandwidth cannot be satisfied
  • the MAC CE is sent to the terminal to notify the terminal to allocate a PRB to the terminal in the extended bandwidth and the second system bandwidth.
  • the sending unit 22 is further configured to: when the extended bandwidth or the second system bandwidth is separately scheduled, send a PDCCH in one TTI to schedule resources of the extended bandwidth or the second system bandwidth; When the extended bandwidth and the second system bandwidth are simultaneously scheduled, two PDCCHs are sent in one TTI to respectively schedule the resources of the extended bandwidth and the second system bandwidth, and the DCI format used at this time is to support cross-carrier scheduling.
  • the DCI format that is, the CIF flag bit of the 3 bit is added in front of the DCI, and the PDCCH for the extended bandwidth resource scheduling and the PDCCH for the second system bandwidth resource scheduling are distinguished by the CFI flag.
  • the base station may further include:
  • the dynamic provisioning unit 25 is configured to: when scheduling the resources of the extended bandwidth and the second system bandwidth simultaneously, according to the PRB utilization rate of each system bandwidth and the requirement of the terminal for the PRB, when the extended bandwidth is used separately When the PRB of the second system bandwidth can meet the requirement of the terminal, the MAC CE is sent to the terminal to notify the terminal to allocate the PRB to the terminal only in the extended bandwidth or the second system bandwidth. .
  • the configuration unit 21 is further configured to: when configuring the first system bandwidth and the second system bandwidth, further configuring the extended bandwidth and the location identifier of the second system bandwidth, where the location identifier represents the extension A preset positional relationship between the bandwidth and the bandwidth of the second system.
  • the sending unit 22 is further configured to: send a downlink second system bandwidth in the MIB; and send an uplink second system bandwidth in the SIB2; where, when the SIB2 does not have the uplink second system bandwidth, The downlink second system bandwidth is the same as the uplink second system bandwidth.
  • the sending unit 22 is further configured to: send, in the reconfiguration message, at least the following information to the terminal that supports the non-standard bandwidth: the first system bandwidth, the extended bandwidth, and the location of the second system bandwidth And identifying the cross-carrier scheduling identifier, so that the terminal calculates the extended bandwidth and its location.
  • the base station may further include:
  • the calculating unit 26 is configured to: calculate, for the terminal supporting the non-standard bandwidth, the extended bandwidth according to the second system bandwidth and the first system bandwidth;
  • the sending unit 22 is further configured to: send at least the following information in the reconfiguration message: the extended bandwidth, the extended bandwidth and the location identifier of the second system bandwidth, and the cross-carrier tone The degree is identified such that the terminal obtains the extended bandwidth and its location.
  • the sending unit 22 is further configured to: send at least the following information in the broadcast information SIB2: the first system bandwidth, and the location identifier of the extended bandwidth and the second system bandwidth, so that the terminal The extended bandwidth and the location thereof are calculated.
  • the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the calculating unit 26 is configured to: calculate the extended bandwidth according to the second system bandwidth and the first system bandwidth;
  • the sending unit 22 is further configured to: send at least the following information in the broadcast information SIB2: an extended bandwidth, and a location identifier of the extended bandwidth and the second system bandwidth, so that the terminal obtains the extension The bandwidth and its location; for the terminal supporting the non-standard bandwidth, the cross-carrier scheduling identifier is sent in the reconfiguration message.
  • the base station may further include:
  • the first determining unit 27 is configured to: determine whether the extended bandwidth meets the terminal requirement, and if yes, allocate a PRB to the terminal in the extended bandwidth;
  • the second determining unit 28 is configured to: determine, when the extended bandwidth does not meet the requirement of the terminal, whether the bandwidth of the second system meets the requirement of the terminal, and if yes, allocate the bandwidth to the terminal in the second system bandwidth PRB; when the second system bandwidth does not meet the terminal requirement, the PRB is allocated to the terminal at the extended bandwidth and the second system bandwidth.
  • a scheduling method supporting non-standard bandwidth according to an embodiment of the present invention will be described below with reference to the embodiments.
  • the embodiment of the invention configures the extended bandwidth by reconfiguring the message.
  • the LTE standard bandwidth defined in the 3GPP protocol is: 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz, and the corresponding maximum available resource blocks are 6, 15, 25, 50, 75, and 100, respectively. It is represented by n6, n15, n25, n50, n75, and n100, where the digital part represents the maximum available PRB corresponding to the bandwidth.
  • FIG. 3 is in LTE.
  • a schematic diagram of the PRB, a PRB consists of 12 subcarriers in the vertical direction and 7 orthogonal frequency division multiplexing (OFDM) symbols in the horizontal direction.
  • OFDM orthogonal frequency division multiplexing
  • non-standard bandwidth For the case of non-standard bandwidth, it can be represented by n*, where * represents the number of PRBs of non-standard bandwidth. Therefore, the value range of * is any value other than 6, 15, 25, 50, 75, and 100 in the interval [7, 200], that is, the value range can also be expressed as [7, 14], [16, 24], [26, 74], [76, 99] and [101, 200].
  • n* For the case of non-standard bandwidth, it can be represented by n*, where * represents the number of PRBs of non-standard bandwidth. Therefore, the value range of * is any value other than 6, 15, 25, 50, 75, and 100 in the interval [7, 200], that is, the value range can also be expressed as [7, 14], [16, 24], [26, 74], [76, 99] and [101, 200].
  • the non-standard bandwidth owned by the operator is referred to as the first system bandwidth
  • the standard bandwidth smaller than the first system bandwidth is referred to as the second system bandwidth.
  • the second system bandwidth may take any standard bandwidth smaller than the first system bandwidth.
  • the bandwidth of the first system is n80
  • the bandwidth of the second system may be set to any one of n6, n15, n25, n50, and n75
  • the extended bandwidth may be n74, n65, n55, n30, and n5.
  • description is made only with the largest second system bandwidth that is smaller than the bandwidth of the first system.
  • the first system bandwidth, the second system bandwidth, the extended bandwidth, and the second system bandwidth location identifier are configured in the base station of the embodiment of the present invention.
  • the extended bandwidth may be on the right side of the second system bandwidth, as shown in case A in FIG. 4; the extended bandwidth may also be on the left side of the second system bandwidth, as shown in case B in FIG. 4; the extended bandwidth is also It can be evenly distributed at both ends of the second system bandwidth, as shown in case C in FIG.
  • the base station determines the relationship between the second system bandwidth and the extended bandwidth by sending three parameters of the first system bandwidth or the extended bandwidth, the second system bandwidth, the extended bandwidth, and the second system bandwidth location identifier, where the first system bandwidth and the second system are
  • the bandwidth can be represented by the number of PRBs, and the extended bandwidth and the second system bandwidth location identifier can use two bits of data to represent the three cases of the second system bandwidth and the extended bandwidth location.
  • the second system bandwidth is sent by the base station in the broadcast mode.
  • the downlink (DL, Downlink) second system bandwidth is sent in the MIB, and the uplink (UL, Uplink) second system bandwidth is sent in the SIB2. If there is no UL in the SIB2.
  • the DL second system bandwidth is considered to be the same as the UL second system bandwidth. All terminals receive broadcast information on the second system bandwidth and initiate access on the second system bandwidth.
  • the terminal searches for a cell in the second system bandwidth configured by the base station, receives broadcast information, and initiates an access procedure.
  • a terminal supporting non-standard bandwidth transmits capability to support non-standard bandwidth through UE capability message To the base station.
  • the base station delivers the parameters in the reconfiguration message: the number of the first system bandwidth resource block, the location identifier of the second system bandwidth and the extended bandwidth, and the indication of supporting cross-carrier scheduling.
  • the terminal can calculate the number of resource blocks and the location of the extended bandwidth according to the second system bandwidth received in the broadcast information, the first system bandwidth received in the message, and the location identifier of the second system bandwidth and the extended bandwidth.
  • the terminal determines whether the base station schedules the second system bandwidth, the extended bandwidth, or the two-part resource scheduling according to the carrier indicator field (CIF) in the Downlink Control Information (DCI) format.
  • CIF carrier indicator field
  • DCI Downlink Control Information
  • the UE When the base station delivers the first system bandwidth resource block number in the reconfiguration message, the UE calculates the resource block number of the extended bandwidth. Alternatively, the base station may calculate the number of the extended bandwidth resource blocks and send the information to the terminal through the reconfiguration message. The base station sends the extended bandwidth, the second system bandwidth, and the extended bandwidth location identifier in the reconfiguration message. Supports parameters such as cross-carrier scheduling indication.
  • Embodiments of the present invention configure extended bandwidth by broadcasting messages.
  • the first system bandwidth or the extended bandwidth, the extended bandwidth, and the second system bandwidth location identifier may also be delivered in the system broadcast.
  • the base station sends a broadcast message to the second system bandwidth, the DL second system bandwidth is sent in the MIB, and the UL second system bandwidth is sent in the SIB2. If the SIB2 does not have the UL second system bandwidth, the DL second system bandwidth is considered. Same bandwidth as UL second system.
  • the first system bandwidth resource block number, the second system bandwidth, and the extended bandwidth location identifier of the DL and the UL are sent to the terminal under the SIB2, and the terminal receives the first system bandwidth, the second system bandwidth, the extended bandwidth, and the second system bandwidth.
  • the location identifier is capable of calculating the number and location of resource blocks for the extended bandwidth.
  • the terminal initiates the access on the second system bandwidth, and the terminal that supports the non-standard bandwidth reports the capability of supporting the non-standard bandwidth in the UE capability report message, and the base station sends the cross-carrier scheduling in the reconfiguration message according to whether the UE supports the non-standard bandwidth. It is indicated that the UE determines whether the base station schedules the second system bandwidth, the extended bandwidth, or the two parts of resources according to the CIF in the DCI sent by the base station.
  • the terminal calculates the resource block number of the extended bandwidth according to the first system bandwidth and the second system bandwidth.
  • the base station may also calculate the number of resource blocks of the extended bandwidth, and broadcast the extended bandwidth, the extended bandwidth, and the second system bandwidth location identifier in the SIB2 message.
  • the embodiment of the invention describes the allocation of resources on the bandwidth of the first system.
  • the base station For a terminal that does not support the non-standard bandwidth, the base station directly allocates a resource block to the terminal in the second system bandwidth, and sends the uplink and downlink scheduling information to the terminal through the PDCCH, and the terminal demodulates the physical downlink shared channel according to the DCI delivered by the PDCCH.
  • the physical uplink shared channel (PDSCH/PUSCH, Physical Downlink Shared Channel/Physical Uplink Shared Channel) implements data transmission.
  • the steps for resource allocation for the terminal supporting the non-standard bandwidth are as follows:
  • the first step is to determine whether the resources of the extended bandwidth can meet the requirements of the terminal.
  • set threshold parameters of the two resource utilization rates for the extended bandwidth E_Threshold1 and E_Threshold2.
  • E1(T) represents the actual PRB utilization of the extended bandwidth at the current time
  • E2(T) represents the estimated PRB utilization of the extended bandwidth after the UE is allocated the PRB.
  • the terminal allocates resources on the extended bandwidth. Otherwise, if the resource utilization of the extended bandwidth is high, the extended bandwidth is not The terminal allocates resources and goes to the second step.
  • Step 2 In order to measure the bandwidth usage of the second system, the threshold parameters N_Threshold1 and N_Threshold2 of the two resource utilization are also set.
  • N1(T) represents the actual PRB utilization of the second system bandwidth at the current time
  • N2(T) represents the estimated RRB utilization of the second system bandwidth after the UE allocates the PRB.
  • the resource utilization of the bandwidth of the second system is not too high at this time, and the requirement for allocating resources for the terminal can be satisfied, and the resource is allocated to the terminal on the bandwidth of the second system, otherwise, the process goes to the third step.
  • Step 3 Since the resource utilization of the extended bandwidth and the second system bandwidth are relatively high, it is necessary to allocate resource blocks for the terminal simultaneously on the two bandwidths, in order to enable the terminal to simultaneously detect resources in the extended bandwidth and the second system bandwidth.
  • the base station sends a MAC CE to notify the terminal and simultaneously expands Bandwidth and second system bandwidth scheduling.
  • the eNB sends two PDCCHs in a TTI using the resources of the second system bandwidth.
  • One PDCCH is the allocation of the bandwidth resources of the second system
  • one PDCCH is the allocation of the extended bandwidth resources, and the terminal is blindly detected in one TTI.
  • Step 4 Since the terminal blindly detects two PDCCHs at the same time, the power consumption of the terminal increases, and in order to reduce the power consumption of the terminal, when the extended bandwidth or the second system bandwidth can meet the terminal requirement, the base station only schedules the extended bandwidth or The resources of the second system bandwidth.
  • two parameters E_UE_Threshold and N_UE_Threshold are set.
  • N_UE(T) represents the average value of the ratio of the total RBs of the RBs allocated by the UE in the second system bandwidth in the second system bandwidth;
  • E_UE(T) indicates that the RBs allocated by the UE in the extended bandwidth are in the extended bandwidth. The average of the ratio of RBs.
  • the base station continues to judge the resource usage on the extended bandwidth, if it satisfies:
  • the base station sends a MAC CE to notify the terminal to schedule it only on the extended bandwidth, and the terminal demodulates the PDSCH/PUSCH only in the extended bandwidth. Otherwise, the base station continues to determine the bandwidth allocation of the second system bandwidth, if:
  • the base station sends the MAC CE to notify the terminal to schedule the second system bandwidth only, and the terminal performs demodulation of the PDSCH/PUSCH only in the second system bandwidth.
  • the base station continues to schedule the terminal within the extended bandwidth and the second system bandwidth.
  • Embodiments of the present invention describe scheduling of bandwidth and extended bandwidth resources in the second system.
  • the base station When the base station performs scheduling on the extended bandwidth and the second system bandwidth, the base station sends two PDCCHs for scheduling. At this time, DCI with 3bit CIF supporting cross-carrier scheduling is used.
  • FIG. 5 is a schematic diagram of cross-carrier scheduling according to an embodiment of the present invention.
  • the terminal After receiving a PDCCH scheduled for a second system bandwidth resource block, the terminal demodulates downlink data according to a DCI message on a PDSCH of a second system bandwidth or The uplink data is sent on the PUSCH. Demodulate PDSCH root The symbol position is determined according to a control format indicator (CFI, Control Format Indicator) of the cell. If the uplink data is transmitted, the terminal parses the PDCCH and sends the uplink data at the corresponding PUSCH resource location.
  • CFI Control Format Indicator
  • the terminal After receiving the PDCCH scheduled for the resource block of the extended bandwidth, the terminal demodulates the downlink data on the PDSCH of the extended bandwidth according to the DCI message or transmits the uplink data on the PUSCH. Since the control channel PDCCH is not set for the extended bandwidth, the symbol position of the PDSCH does not depend on the CFI configured by the base station, and all symbols are used to transmit the PDSCH. If the uplink data is transmitted, the terminal parses the PDCCH and sends the uplink data at the corresponding PUSCH resource location.
  • FIG. 6 is a schematic diagram of scheduling of a non-standard bandwidth according to an embodiment of the present invention.
  • the base station sends two PDCCHs, so the base station and the terminal are at the same time.
  • the two hybrid automatic repeat request (HAQR) entities are maintained.
  • the UE feeds back 4 ACK/NACK information at most, and also feeds back 4 ACK/NACK for the uplink data base station.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the above-mentioned scheduling method supporting non-standard bandwidth.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. .
  • the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place. It can also be distributed to multiple network units; the purpose of the solution of this embodiment can be implemented according to actual selection of some or all of the units.
  • the functional units in the embodiments of the present invention may all be integrated in one second processing unit, or the units may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the base station in the embodiment of the present invention can enable the terminal supporting the standard bandwidth to work normally without any modification, thereby ensuring system compatibility.
  • a terminal supporting non-standard bandwidth it can use more air interface resource blocks of the base station, which can improve data throughput and improve spectrum utilization. It enables operators to make full use of the non-standard bandwidth they have and improve their spectrum resource utilization.

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Abstract

本文公布一种支持非标准带宽的调度方法及基站，包括：基站配置第一系统带宽和第二系统带宽，通过广播信息将第二系统带宽下发给终端，其中，第一系统带宽减去第二系统带宽为扩展带宽；当终端在第二系统带宽接入小区时，接收终端发送的用于指示终端是否支持非标准带宽的指示信息；当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，跨载波调度标识用于指示终端在扩展带宽和/或第二系统带宽上调度。

Description

支持非标准带宽的调度方法及基站 技术领域
本申请涉及但不限于无线通信技术，尤其是一种支持非标准带宽的调度方法及基站。
背景技术
在一些网络结构的标准中定义了特定的标准带宽，如第三代合作伙伴计划(3GPP，3rd Generation Partnership Project)标准中的长期演进(LTE，Long Term Evolution)定义了1.4MHz、3MHz、5MHz、10MHz、15MHz和20MHz六种标准的小区带宽。
而实际的应用中，运营商所拥有的带宽可能并不是标准带宽。为了能够使用LTE网络，运营商不得不使用比其所拥有的带宽小的标准带宽。例如，某运营商拥有12MHz的带宽，最后该运营商只能使用10MHz的标准带宽，剩余2MHz带宽造成了频谱资源的浪费。
相关技术有两种方案解决运营商拥有非标准带宽时导致频谱资源不能有效利用的问题：
方案一：将非标准带宽分割为标准带宽的组合，然后再采用载波聚合的方式将两个标准带宽进行聚合。该方式有一定的局限性，即运营商拥有的非标准带宽不一定能够正好分割为几个标准带宽的组合。如上所说，某运营商有12MHz的空口带宽，为了充分利用频谱资源，仅能够分割为10MHz和1.4MHz标准带宽的组合，还是会有部分频谱资源浪费并且不是所有的带宽组合都能够进行载波聚合，同时可能还需要增加硬件设备，导致成本增加。
方案二：为了减小和避免邻频的干扰，LTE协议中每个标准带宽的两端都预留了一定带宽作为保护带宽，不进行有用数据的传输。为了能够充分利用所拥有的非标准带宽，可以将标准带宽进行严格滤波，使得标准带宽预留的保护带宽小于标准保护带宽。如某运营商有19.2MHz的非标准带宽，由于20MHz带宽的标准保护带宽为1MHz，中间18MHz用来传输有用数据，进行 严格滤波后，使得18MHz带宽两端的保护带宽小于1MHz，滤波后的保护带宽为0.6MHz，这样就可以使用19.2MHz的非标准带宽。该方案仅适用于非标准带宽稍小于标准带宽的场景，不能满足多样性非标准带宽的需求。
上述两种解决频谱资源浪费的方案，都有其一定的局限性不能够满足多样性的非标准带宽的需求。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种支持非标准带宽的调度方法及基站。
本发明实施例提供的支持非标准带宽的调度方法应用于基站，所述方法包括：
配置第一系统带宽和第二系统带宽；
通过广播信息将所述第二系统带宽下发给终端，其中，所述第一系统带宽减去所述第二系统带宽为扩展带宽；
当终端在所述第二系统带宽接入小区时，接收所述终端发送的用于指示所述终端是否支持非标准带宽的指示信息；
当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，所述跨载波调度标识用于指示终端在所述扩展带宽和/或所述第二系统带宽上调度。
本发明实施例中，所述方法还包括：
对于支持非标准带宽的终端，在所述扩展带宽或所述第二系统带宽对所述终端分配物理资源块(PRB，Physic Resource Block)，当所述扩展带宽或所述第二系统带宽的PRB不能满足所述终端需求时，向所述终端下发介质访问控制单元(MAC CE，Medium Access Control Control Element)，以通知所述终端同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
本发明实施例中，所述方法还包括：当对所述扩展带宽或第二系统带宽单独调度时，在一个传输时间间隔(TTI，Transmission Time Interval)内下发 一个PDCCH对所述扩展带宽或第二系统带宽的资源进行调度；
当对所述扩展带宽和第二系统带宽同时调度时，在一个TTI内下发两个PDCCH分别对所述扩展带宽和第二系统带宽的资源进行调度，所述PDCCH中的DCI格式支持跨载波调度，所述DCI通过增加的CIF标识位来区分所述扩展带宽资源调度的PDCCH和所述第二系统带宽资源调度的PDCCH。
本发明实施例中，所述方法还包括：
同时对所述扩展带宽和第二系统带宽的资源进行调度时，根据所述扩展带宽和第二系统带宽上PRB利用率和所述终端对PRB的需求，当单独使用所述扩展带宽或所述第二系统带宽的PRB能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端仅在所述扩展带宽或所述第二系统带宽对所述终端分配PRB。
本发明实施例中，所述配置第一系统带宽和第二系统带宽的步骤中，还包括：配置所述扩展带宽与所述第二系统带宽的位置标识，其中，所述位置标识表征了所述扩展带宽与所述第二系统带宽的预设位置关系。
本发明实施例中，所述通过广播信息将所述第二系统带宽下发给终端，包括：
在主消息块(MIB，Master Information Block)中下发下行第二系统带宽；
在系统消息块2(SIB2，System Information Block2)中下发上行第二系统带宽；
其中，当所述SIB2中无所述上行第二系统带宽时，所述下行第二系统带宽和所述上行第二系统带宽相同。
本发明实施例中，，所述方法还包括：
对于支持非标准带宽的终端，在重配消息中下发以下信息：所述第一系统带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调度标识，以使所述终端计算得到所述扩展带宽及其位置。
本发明实施例中，所述方法还包括：
对于支持非标准带宽的终端，根据所述第二系统带宽和所述第一系统带 宽计算得到所述扩展带宽；
在重配消息中下发以下信息：所述扩展带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调度标识，以使所述终端得到所述扩展带宽及其位置。
本发明实施例中，所述方法还包括：
在广播信息SIB2中下发以下信息：所述第一系统带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端计算得到所述扩展带宽及其位置；
对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
本发明实施例中，所述方法还包括：
根据所述第二系统带宽和所述第一系统带宽计算得到所述扩展带宽；
在广播信息SIB2中下发以下信息：扩展带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端得到所述扩展带宽及其位置；
对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
本发明实施例中，所述方法还包括：
判断所述扩展带宽是否满足所述终端需求，满足时，在所述扩展带宽对所述终端分配PRB；
所述扩展带宽未满足所述终端需求时，判断所述第二系统带宽是否满足所述终端需求，满足时，在所述第二系统带宽对所述终端分配PRB；
所述第二系统带宽未满足所述终端需求时，同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
本发明实施例提供的基站包括：
配置单元，设置为：配置第一系统带宽和第二系统带宽，其中，所述第一系统带宽减去所述第二系统带宽为扩展带宽；
下发单元，设置为：通过广播信息将所述第二系统带宽下发给终端；
接收单元，设置为：当终端在所述第二系统带宽接入小区时，接收所述终端发送的用于指示所述终端是否支持非标准带宽的指示信息；
所述下发单元，还设置为：当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，所述跨载波调度标识用于指示终端在所述扩展带宽和/或所述第二系统带宽上调度。
本发明实施例中，所述基站还包括：
分配单元，设置为：对于支持非标准带宽的终端，在所述扩展带宽或所述第二系统带宽对所述终端分配PRB，当所述扩展带宽或所述第二系统带宽的PRB不能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
本发明实施例中，所述下发单元，还设置为：当对所述扩展带宽或第二系统带宽单独调度时，在一个TTI内下发一个PDCCH对所述扩展带宽或第二系统带宽的资源进行调度；当对所述扩展带宽和第二系统带宽同时调度时，在一个TTI内下发两个PDCCH分别对所述扩展带宽和第二系统带宽的资源进行调度，所述PDCCH中的DCI格式支持跨载波调度，所述DCI通过增加的CIF标识位来区分所述扩展带宽资源调度的PDCCH和所述第二系统带宽资源调度的PDCCH。
本发明实施例中，所述基站还包括：
动态调配单元，设置为：同时对所述扩展带宽和第二系统带宽的资源进行调度时，根据所述扩展带宽和第二系统带宽带宽上PRB利用率和所述终端对PRB的需求，当单独使用所述扩展带宽或所述第二系统带宽的PRB能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端仅在所述扩展带宽或所述第二系统带宽对所述终端分配PRB。
本发明实施例中，所述配置单元，还设置为：配置第一系统带宽和第二系统带宽时，还配置所述扩展带宽与所述第二系统带宽的位置标识，其中，所述位置标识表征了所述扩展带宽与所述第二系统带宽的预设位置关系。
本发明实施例中，所述下发单元，还设置为：在MIB中下发下行第二系统带宽；在SIB2中下发上行第二系统带宽；其中，当所述SIB2中无所述上行第二系统带宽时，所述下行第二系统带宽和所述上行第二系统带宽相同。
本发明实施例中，所述下发单元，还设置为：对于支持非标准带宽的终 端，在重配消息中下发以下信息：所述第一系统带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调度标识，以使所述终端计算得到所述扩展带宽及其位置。
本发明实施例中，所述基站还包括：
计算单元，设置为：对于支持非标准带宽的终端，根据所述第二系统带宽和所述第一系统带宽计算得到所述扩展带宽；
所述下发单元，还设置为：在重配消息中下发以下信息：所述扩展带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调度标识，以使所述终端得到所述扩展带宽及其位置。
本发明实施例中，所述下发单元，还设置为：在广播信息SIB2中下发以下信息：所述第一系统带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端计算得到所述扩展带宽及其位置；对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
本发明实施例中，所述基站还包括：
计算单元，设置为：根据所述第二系统带宽和所述第一系统带宽计算得到所述扩展带宽；
所述下发单元，还设置为：在广播信息SIB2中下发以下信息：扩展带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端得到所述扩展带宽及其位置；对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
本发明实施例中，所述基站还包括：
第一判断单元，设置为：判断所述扩展带宽是否满足所述终端需求，满足时，在所述扩展带宽对所述终端分配PRB；
第二判断单元，设置为：所述扩展带宽未满足所述终端需求时，判断所述第二系统带宽是否满足所述终端需求，满足时，在所述第二系统带宽对所述终端分配PRB；所述第二系统带宽未满足所述终端需求时，同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
本发明实施例提供一种计算机可读存储介质，存储有计算机可执行指令， 所述计算机可执行指令被处理器执行时实现上述方法。
本发明实施例的技术方案中，基站配置两个系统带宽，运营商拥有的实际带宽称为第一系统带宽，小于第一系统带宽的标准带宽称为第二系统带宽，第一系统带宽减去第二系统带宽称为扩展带宽。基站通过广播信息将所述第二系统带宽下发给终端。终端搜索广播信息，在接入小区时，如果该终端支持非标准带宽则发送该终端支持非标准带宽，如果不发送支持非标准带宽，则基站认为该终端仅支持标准带宽；对于支持非标准带宽的终端，基站下发跨载波调度标识，终端即可以使用第二系统带宽内的物理下行控制信道(PDCCH，Physic Downlink Control Channel)来调度第二系统带宽和/或扩展带宽上的PRB；对于支持非标准带宽的终端，基站首先会单独在扩展带宽或第二系统带宽对终端分配PRB，如果单独使用扩展带宽或第二系统带宽的PRB不能满足终端需求时，基站下发一个MAC CE来通知终端，基站在扩展带宽和第二系统带宽同时对终端进行PRB分配；基站同时在扩展带宽和第二系统带宽上对终端进行PRB分配后，基站还会动态地根据终端需要分配的PRB和带宽上剩余的PRB的情况，通知终端仅在扩展带宽或者第二系统带宽上对其进行PRB分配。基于此，对于支持非标准带宽的终端和基站可以在第二系统带宽和扩展带宽上进行数据传输；对于不支持非标准带宽的终端能够在第二系统带宽正常的和基站进行通信和数据传输。所以，本发明实施例的基站能够让支持标准带宽的终端无需做任何改动的情况下正常工作，保证了系统的兼容性。对于支持非标准带宽的终端能够使用该基站更多的空口资源块，可以提高数据的吞吐量和提高频谱利用率。使得运营商能够充分利用所拥有的非标准带宽，提高其频谱资源利用率。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本发明实施例的支持非标准带宽的调度方法的流程示意图；
图2为本发明实施例的基站的结构组成示意图；
图3为LTE中的PRB的构成示意图；
图4为本发明实施例的扩展带宽和标准带宽的关系示意图；
图5为本发明实施例的跨载波调度示意图；
图6为本发明实施例的非标准带宽的调度示意图。
本发明的实施方式
下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
图1为本发明实施例的支持非标准带宽的调度方法的流程示意图，本示例中的支持非标准带宽的调度方法应用于基站，如图1所示，所述支持非标准带宽的调度方法包括以下步骤：
步骤101：配置第一系统带宽和第二系统带宽，并通过广播信息将所述第二系统带宽下发给终端，其中，所述第一系统带宽减去所述第二系统带宽为扩展带宽。
本发明实施例中，配置第一系统带宽和第二系统带宽时，还配置所述扩展带宽与所述第二系统带宽的位置标识，其中，所述位置标识表征了所述扩展带宽与所述第二系统带宽的预设位置关系。
本发明实施例中，所述通过广播信息将所述第二系统带宽下发给终端，包括：
在MIB中下发下行第二系统带宽；
在SIB2中下发上行第二系统带宽；
其中，当所述SIB2中无所述上行第二系统带宽时，所述下行第二系统带宽和所述上行第二系统带宽相同。
步骤102：当终端在所述第二系统带宽接入小区时，接收所述终端发送的用于指示所述终端是否支持非标准带宽的指示信息。
本发明实施例中，对于支持非标准带宽的终端，在所述扩展带宽或所述第二系统带宽对所述终端分配PRB，当所述扩展带宽或所述第二系统带宽的PRB不能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端 同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
本发明实施例中，当对所述扩展带宽或第二系统带宽单独调度时，在一个TTI内下发一个PDCCH对所述扩展带宽或第二系统带宽的资源进行调度；
当对所述扩展带宽和第二系统带宽同时调度时，在一个TTI内下发两个PDCCH分别对所述扩展带宽和第二系统带宽的资源进行调度，此时使用的DCI格式为支持跨载波调度的DCI格式，即DCI前面增加3bit的CIF标识位，通过CFI标识位来区分对扩展带宽资源调度的PDCCH和对第二系统带宽资源调度的PDCCH。
本发明实施例中，判断所述扩展带宽是否满足所述终端需求，满足时，在所述扩展带宽对所述终端分配PRB；
所述扩展带宽未满足所述终端需求时，判断所述第二系统带宽是否满足所述终端需求，满足时，在所述第二系统带宽对所述终端分配PRB；
所述第二系统带宽未满足所述终端需求时，同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
步骤103：当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，所述跨载波调度标识用于指示终端在所述扩展带宽和/或所述第二系统带宽上调度。
本发明实施例中，对于支持非标准带宽的终端，在重配消息中下发至少以下信息：所述第一系统带宽、所述扩展带宽与所述第二系统带宽的位置标识、所述跨载波调度标识，以使所述终端计算得到所述扩展带宽及其位置。
本发明实施例中，对于支持非标准带宽的终端，根据所述第二系统带宽、所述第一系统带宽计算得到所述扩展带宽；
在重配消息中下发至少以下信息：所述扩展带宽、所述扩展带宽与所述第二系统带宽的位置标识、所述跨载波调度标识，以使所述终端得到所述扩展带宽及其位置。
本发明实施例中，在广播信息SIB2中下发至少以下信息：所述第一系统带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端 计算得到所述扩展带宽及其位置；
对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
本发明实施例中，根据所述第二系统带宽、所述第一系统带宽计算得到所述扩展带宽；
在广播信息SIB2中下发至少以下信息：扩展带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端得到所述扩展带宽及其位置；
对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
本发明实施例中，同时对所述扩展带宽和第二系统带宽的资源进行调度时，根据所述扩展带宽和第二系统带宽上PRB利用率和所述终端对PRB的需求，当单独使用所述扩展带宽或所述第二系统带宽的PRB能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端仅在所述扩展带宽或所述第二系统带宽对所述终端分配PRB。
图2为本发明实施例的基站的结构组成示意图，如图2所示，所述基站包括：
配置单元21，设置为：配置第一系统带宽和第二系统带宽，其中，所述第一系统带宽减去所述第二系统带宽为扩展带宽；
下发单元22，设置为：通过广播信息将所述第二系统带宽下发给终端；
接收单元23，设置为：当终端在所述第二系统带宽接入小区时，接收所述终端发送的用于指示所述终端是否支持非标准带宽的指示信息；
所述下发单元22，还设置为：当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，所述跨载波调度标识用于指示终端在所述扩展带宽和/或所述第二系统带宽上调度。
所述基站还可包括：
分配单元24，设置为：对于支持非标准带宽的终端，在所述扩展带宽或所述第二系统带宽对所述终端分配PRB，当所述扩展带宽或所述第二系统带宽的PRB不能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
所述下发单元22，还设置为：当对所述扩展带宽或第二系统带宽单独调度时，在一个TTI内下发一个PDCCH对所述扩展带宽或第二系统带宽的资源进行调度；当对所述扩展带宽和第二系统带宽同时调度时，在一个TTI内下发两个PDCCH分别对所述扩展带宽和第二系统带宽的资源进行调度，此时使用的DCI格式为支持跨载波调度的DCI格式，即DCI前面增加3bit的CIF标识位，通过CFI标识位来区分对扩展带宽资源调度的PDCCH和对第二系统带宽资源调度的PDCCH。
所述基站还可包括：
动态调配单元25，设置为：同时对所述扩展带宽和第二系统带宽的资源进行调度时，根据每个系统带宽上PRB利用率和所述终端对PRB的需求，当单独使用所述扩展带宽或所述第二系统带宽的PRB能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端仅在所述扩展带宽或所述第二系统带宽对所述终端分配PRB。
所述配置单元21，还设置为：配置第一系统带宽和第二系统带宽时，还配置所述扩展带宽与所述第二系统带宽的位置标识，其中，所述位置标识表征了所述扩展带宽与所述第二系统带宽的预设位置关系。
所述下发单元22，还设置为：在MIB中下发下行第二系统带宽；在SIB2中下发上行第二系统带宽；其中，当所述SIB2中无所述上行第二系统带宽时，所述下行第二系统带宽和所述上行第二系统带宽相同。
所述下发单元22，还设置为：对于支持非标准带宽的终端，在重配消息中下发至少以下信息：所述第一系统带宽、所述扩展带宽与所述第二系统带宽的位置标识、所述跨载波调度标识，以使所述终端计算得到所述扩展带宽及其位置。
所述基站还可包括：
计算单元26，设置为：对于支持非标准带宽的终端，根据所述第二系统带宽、所述第一系统带宽计算得到所述扩展带宽；
所述下发单元22，还设置为：在重配消息中下发至少以下信息：所述扩展带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调 度标识，以使所述终端得到所述扩展带宽及其位置。
所述下发单元22，还设置为：在广播信息SIB2中下发至少以下信息：所述第一系统带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端计算得到所述扩展带宽及其位置；对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
计算单元26，设置为：根据所述第二系统带宽和所述第一系统带宽计算得到所述扩展带宽；
所述下发单元22，还设置为：在广播信息SIB2中下发至少以下信息：扩展带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端得到所述扩展带宽及其位置；对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
所述基站还可包括：
第一判断单元27，设置为：判断所述扩展带宽是否满足所述终端需求，满足时，在所述扩展带宽对所述终端分配PRB；
第二判断单元28，设置为：所述扩展带宽未满足所述终端需求时，判断所述第二系统带宽是否满足所述终端需求，满足时，在所述第二系统带宽对所述终端分配PRB；所述第二系统带宽未满足所述终端需求时，同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
本领域技术人员应当理解，本发明实施例的上述基站中的每个单元所实现的功能可参照前述支持非标准带宽的调度方法的描述而理解。
下面结合实施例对本发明实施例的支持非标准带宽的调度方法进行描述。
实施例一
本发明实施例通过重配消息配置扩展带宽。
在3GPP协议中定义的LTE标准带宽为：1.4MHz、3MHz、5MHz、10MHz、15MHz和20MHz六种，对应的最大可用的资源块数分别为6、15、25、50、75和100个，可以使用n6、n15、n25、n50、n75和n100表示，其中数字部分表示该带宽对应的最大可用PRB。参照图3，图3为LTE中的 PRB的构成示意图，一个PRB由纵向的12个子载波以及横向的7个正交频份复用(OFDM，Orthogonal Frequency Division Multiplexing)符号组成。
针对非标准带宽的情况，可以使用n*来表示，其中*表示非标准带宽的PRB数量。因此*的取值范围是[7,200]区间内除6、15、25、50、75和100外的任意一个值，即取值范围还可以表示为[7,14]、[16,24]、[26,74]、[76,99]和[101,200]。在部署LTE时，通常采用这些标准系统带宽中的一个，并在相应的带宽内发射信号。
本发明实施例中，运营商拥有的非标准带宽称为第一系统带宽，小于第一系统带宽的标准带宽称为第二系统带宽。在第一系统带宽和第二系统带宽不同时，第二系统带宽可以取比第一系统带宽小的任意的标准带宽。比如第一系统带宽为n80，则第二系统带宽可以设置为n6、n15、n25、n50和n75中的任意一个，扩展带宽可以为n74、n65、n55、n30和n5。在本发明实施例中仅以小于第一系统带宽的最大的第二系统带宽来进行说明。
在本发明实施例的基站中配置第一系统带宽、第二系统带宽、扩展带宽与第二系统带宽位置标识。扩展带宽可以在第二系统带宽的右边位置，如图4所示中的情况A所示；扩展带宽也可以在第二系统带宽的左边位置，如图4中的情况B所示；扩展带宽还可以平均分布在第二系统带宽的两端，如图4中的情况C所示。基站通过下发第一系统带宽或扩展带宽、第二系统带宽、扩展带宽与第二系统带宽位置标识三个参数来确定第二系统带宽和扩展带宽的关系，其中第一系统带宽、第二系统带宽可以使用PRB的数量来表示，扩展带宽与第二系统带宽位置标识可以使用2比特(bit)的数据来表示第二系统带宽与扩展带宽位置的三种情况。
基站会通过广播的方式下发第二系统带宽，下行(DL，Downlink)第二系统带宽在MIB中下发，上行(UL，Uplink)第二系统带宽在SIB2中下发，如果SIB2中没有UL第二系统带宽，则认为DL第二系统带宽和UL第二系统带宽相同。所有的终端在第二系统带宽上接收广播信息，并在第二系统带宽发起接入。
终端在基站配置的第二系统带宽搜索小区，接收广播信息并发起接入流程。支持非标准带宽的终端通过UE能力消息把支持非标准带宽的能力发送 给基站。对于支持非标准带宽的终端，基站在重配消息中下发：第一系统带宽资源块数、第二系统带宽与扩展带宽的位置标识、支持跨载波调度的指示等参数。终端根据广播信息中接收的第二系统带宽，重配消息中接收的第一系统带宽和第二系统带宽与扩展带宽的位置标识，可以计算出扩展带宽的资源块数和位置。终端根据下行控制信息(DCI，Downlink Control Information)格式中的载波指示域(CIF，Carrier Indicator Field)来判断基站调度的是第二系统带宽、扩展带宽还是两部分资源同时调度。
当基站在重配消息中下发第一系统带宽资源块数时，UE计算扩展带宽的资源块数。也可以采用另一种方式，由基站计算出扩展带宽资源块数后通过重配消息下发给终端，此时基站在重配消息中下发扩展带宽、第二系统带宽和扩展带宽位置标识、支持跨载波调度指示等参数。
实施例二
本发明实施例通过广播消息配置扩展带宽。
第一系统带宽或扩展带宽、扩展带宽和第二系统带宽位置标识还可以在系统广播中下发。基站在第二系统带宽上下发广播消息，DL第二系统带宽在MIB中下发，UL第二系统带宽在SIB2中下发，如果SIB2中没有UL第二系统带宽，则认为DL第二系统带宽和UL第二系统带宽相同。DL和UL的第一系统带宽资源块数、第二系统带宽和扩展带宽位置标识在SIB2下发给终端，终端通过接收到的第一系统带宽、第二系统带宽、扩展带宽与第二系统带宽位置标识能够计算出扩展带宽的资源块数和位置。终端在第二系统带宽上发起接入，支持非标准带宽的终端会在UE能力上报消息中上报支持非标准带宽的能力，基站根据UE是否支持非标准带宽在重配消息中下发跨载波调度指示，UE根据基站下发的DCI中的CIF来判断基站调度的是第二系统带宽、扩展带宽还是两部分资源同时调度。
基站在SIB2消息中下发第一系统带宽时，终端根据第一系统带宽和第二系统带宽来计算扩展带宽的资源块数。基站还可以计算出扩展带宽的资源块数，在SIB2消息中广播扩展带宽、扩展带宽和第二系统带宽位置标识。
实施例三
本发明实施例阐述了第一系统带宽上资源的分配情况。
对于不支持非标准带宽的终端，基站直接在第二系统带宽内给其分配资源块，通过PDCCH把上下行调度的信息发送给终端，终端根据PDCCH下发的DCI来解调物理下行共享信道/物理上行共享信道(PDSCH/PUSCH，Physical Downlink Shared Channel/Physical Uplink Shared Channel)，实现数据的传输。
为了提高基站第一系统带宽上资源块的利用率同时不增加终端的耗电，对于支持非标准带宽的终端，资源分配的步骤如下：
第一步：优先判断扩展带宽的资源是否能够满足终端需求，为了衡量扩展带宽资源使用情况，对于扩展带宽设置两个资源利用率的门限参数：E_Threshold1和E_Threshold2。E1(T)表示当前时刻扩展带宽的实际PRB利用率，E2(T)表示估算为UE分配PRB后扩展带宽的PRB利用率。
如果E1(T)＜E_Threshold 1且E2(T)＜E_Threshold 2
则认为此时扩展带宽的资源利用率并不是太高，可以满足该终端资源的需求，则在扩展带宽上对终端分配资源，否则认为扩展带宽的资源利用率较高，则不在扩展带宽上为终端分配资源，转到第二步。
第二步：为了衡量第二系统带宽资源使用情况，同样设置两个资源利用率的门限参数N_Threshold1和N_Threshold2。N1(T)表示当前时刻第二系统带宽的实际PRB利用率，N2(T)表示估算为UE分配PRB后第二系统带宽的RRB利用率。
如果N1(T)＜N_Threshold 1且N2(T)＜N_Threshold 2
则认为此时第二系统带宽的资源利用率并不是太高，可以满足为终端分配资源的需求，则在第二系统带宽上为终端分配资源，否则转到第三步。
第三步：由于扩展带宽和第二系统带宽的资源利用率都比较高，所以需要在两个带宽上同时为终端分配资源块，为了让终端能够同时检测在扩展带宽和第二系统带宽的资源分配，基站下发一个MAC CE通知终端同时对扩展 带宽和第二系统带宽调度。基站在1个TTI内使用第二系统带宽的资源下发两个PDCCH，一个PDCCH是对第二系统带宽资源的分配，一个PDCCH是对扩展带宽资源的分配，终端在1个TTI内会盲检测这两个PDCCH。
第四步：由于终端同时盲检测两个PDCCH会导致终端的耗电量增加，为了降低终端的耗电，在扩展带宽或第二系统带宽能满足终端需求的情况下，基站仅调度扩展带宽或者第二系统带宽的资源。为了衡量终端在扩展带宽和第二系统带宽的资源使用情况，设置两个参数E_UE_Threshold和N_UE_Threshold。N_UE(T)表示为该UE在第二系统带宽分配的RB在第二系统带宽中总的RB的比的平均值；E_UE(T)表示为该UE在扩展带宽分配的RB在扩展带宽中总的RB的比的平均值。
如果N_UE(T)＜N_UE_Threshold或E_UE(T)＜E_UE_Threshold
则基站继续判断扩展带宽上资源使用情况，如果满足：
E1(T)＜E_Threshold 1且E2(T)＜E_Threshold 2，则基站下发MAC CE通知终端仅在扩展带宽上对其进行调度，终端也仅在扩展带宽内进行解调PDSCH/PUSCH。否则基站继续判断第二系统带宽资源分配，如果满足：
N1(T)＜N_Threshold 1且N2(T)＜N_Threshold 2
则基站下发MAC CE通知终端仅在第二系统带宽上对其进行调度，终端也仅在第二系统带宽内进行解调PDSCH/PUSCH。
如果上面的条件不满足，则基站继续在扩展带宽和第二系统带宽内对终端进行调度。
实施例四
本发明实施例阐述了在第二系统带宽和扩展带宽资源的调度情况。
基站在扩展带宽和第二系统带宽上对终端进行调度时下发两个PDCCH来进行调度。此时使用的是支持跨载波调度的包含3bit CIF的DCI。
参照图5，图5为本发明实施例的跨载波调度示意图，终端在接收到对第二系统带宽资源块调度的PDCCH后，根据DCI消息在第二系统带宽的PDSCH上解调下行数据或者在PUSCH上发送上行数据。解调PDSCH时根 据小区的控制格式指示(CFI，Control Format Indicator)来确定符号位置。如果是上行数据传输，终端解析出PDCCH后，在对应的PUSCH资源位置上发送上行数据。
终端在接收到对扩展带宽的资源块调度的PDCCH后，根据DCI消息在扩展带宽的PDSCH上解调下行数据或者在PUSCH上发送上行数据。由于扩展带宽没有设置控制信道PDCCH，所以PDSCH的符号位置不依赖于基站配置的CFI，所有的符号都用于发送PDSCH。如果是上行数据传输，终端解析出PDCCH后，在对应的PUSCH资源位置上发送上行数据。
参照图6，图6为本发明实施例的非标准带宽的调度示意图，由于同时使用扩展带宽和第二系统带宽资源时，采用了基站下发两个PDCCH的方式，所以基站和终端在同一时刻维护两个混合自动重传请求(HAQR，Hybrid Automatic Repeat Request)实体，对于下行数据，UE最多时反馈4个ACK/NACK信息，对于上行数据基站最多时也反馈4个ACK/NACK。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述支持非标准带宽的调度方法。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方， 也可以分布到多个网络单元上；可以根据实际的选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明实施例中的功能单元可以全部集成在一个第二处理单元中，也可以是单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。
工业实用性
本发明实施例的基站能够让支持标准带宽的终端无需做任何改动的情况下正常工作，保证了系统的兼容性。对于支持非标准带宽的终端能够使用该基站更多的空口资源块，可以提高数据的吞吐量和提高频谱利用率。使得运营商能够充分利用所拥有的非标准带宽，提高其频谱资源利用率。

Claims (15)

  1. 一种支持非标准带宽的调度方法，应用于基站，所述方法包括：
    配置第一系统带宽和第二系统带宽；
    通过广播信息将所述第二系统带宽下发给终端，其中，所述第一系统带宽减去所述第二系统带宽为扩展带宽；
    当终端在所述第二系统带宽接入小区时，接收所述终端发送的用于指示所述终端是否支持非标准带宽的指示信息；
    当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，所述跨载波调度标识用于指示所述终端在所述扩展带宽和/或所述第二系统带宽上调度。
  2. 根据权利要求1所述的支持非标准带宽的调度方法，所述方法还包括：
    对于支持非标准带宽的终端，在所述扩展带宽或所述第二系统带宽对所述终端分配物理资源块PRB，当所述扩展带宽或所述第二系统带宽的PRB不能满足所述终端需求时，向所述终端下发介质访问控制单元MAC CE，以通知所述终端同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
  3. 根据权利要求2所述的支持非标准带宽的调度方法，所述方法还包括：
    当对所述扩展带宽或第二系统带宽单独调度时，在一个传输时间间隔TTI内下发一个物理下行控制信道PDCCH对所述扩展带宽或第二系统带宽的资源进行调度；
    当对所述扩展带宽和第二系统带宽同时调度时，在一个TTI内下发两个PDCCH分别对所述扩展带宽和第二系统带宽的资源进行调度，所述PDCCH中的下行控制信息DCI格式支持跨载波调度，所述DCI通过增加的载波指示域CIF标识位来区分所述扩展带宽资源调度的PDCCH和所述第二系统带宽资源调度的PDCCH。
  4. 根据权利要求3所述的支持非标准带宽的调度方法，所述方法还包括：
    当对所述扩展带宽和第二系统带宽同时进行调度时，根据所述扩展带宽和第二系统带宽上PRB利用率和所述终端对PRB的需求，若单独使用所述扩展带宽或所述第二系统带宽的PRB能满足所述终端需求，则向所述终端下发MAC CE，以通知所述终端在所述扩展带宽或所述第二系统带宽对所述终端分配PRB。
  5. 根据权利要求1所述的支持非标准带宽的调度方法，其中，所述配置第一系统带宽和第二系统带宽的步骤中，还包括：配置所述扩展带宽与所述第二系统带宽的位置标识，其中，所述位置标识用于表征所述扩展带宽与所述第二系统带宽的预设位置关系。
  6. 根据权利要求1所述的支持非标准带宽的调度方法，其中，所述通过广播信息将所述第二系统带宽下发给终端，包括：
    在主消息块MIB中下发下行第二系统带宽；
    在系统消息块2SIB2中下发上行第二系统带宽；
    其中，当所述SIB2中无所述上行第二系统带宽时，所述下行第二系统带宽和所述上行第二系统带宽相同。
  7. 根据权利要求5所述的支持非标准带宽的调度方法，所述方法还包括：
    对于支持非标准带宽的终端，在重配消息中下发以下信息：所述第一系统带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调度标识，以使所述终端计算得到所述扩展带宽及其位置。
  8. 根据权利要求5所述的支持非标准带宽的调度方法，所述方法还包括：
    对于支持非标准带宽的终端，根据所述第二系统带宽和所述第一系统带宽计算得到所述扩展带宽；
    在重配消息中下发以下信息：所述扩展带宽、所述扩展带宽与所述第二系统带宽的位置标识、以及所述跨载波调度标识，以使所述终端得到所述扩展带宽及其位置。
  9. 根据权利要求5所述的支持非标准带宽的调度方法，所述方法还包 括：
    在广播信息SIB2中下发以下信息：所述第一系统带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端计算得到所述扩展带宽及其位置；
    对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
  10. 根据权利要求5所述的支持非标准带宽的调度方法，所述方法还包括：
    根据所述第二系统带宽和所述第一系统带宽计算得到所述扩展带宽；
    在广播信息SIB2中下发以下信息：扩展带宽、以及所述扩展带宽与所述第二系统带宽的位置标识，以使所述终端确定所述扩展带宽及其位置；
    对于支持非标准带宽的终端，在重配消息中下发所述跨载波调度标识。
  11. 根据权利要求2所述的支持非标准带宽的调度方法，所述方法还包括：
    判断所述扩展带宽是否满足所述终端的需求，满足时，在所述扩展带宽对所述终端分配PRB；
    所述扩展带宽未满足所述终端需求时，判断所述第二系统带宽是否满足所述终端需求，满足时，在所述第二系统带宽对所述终端分配PRB；
    所述第二系统带宽未满足所述终端需求时，同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
  12. 一种基站，所述基站包括：
    配置单元，设置为：配置第一系统带宽和第二系统带宽，其中，所述第一系统带宽减去所述第二系统带宽为扩展带宽；
    下发单元，设置为：通过广播信息将所述第二系统带宽下发给终端；
    接收单元，设置为：当终端在所述第二系统带宽接入小区时，接收所述终端发送的用于指示所述终端是否支持非标准带宽的指示信息；
    所述下发单元，还设置为：当根据所述指示信息确定所述终端支持非标准带宽时，向支持非标准带宽的终端下发跨载波调度标识，所述跨载波调度 标识用于指示终端在所述扩展带宽和/或所述第二系统带宽上调度。
  13. 根据权利要求12所述的基站，所述基站还包括：
    分配单元，设置为：对于支持非标准带宽的终端，在所述扩展带宽或所述第二系统带宽对所述终端分配PRB，当所述扩展带宽或所述第二系统带宽的PRB不能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端同时在所述扩展带宽和所述第二系统带宽对所述终端分配PRB。
  14. 根据权利要求13所述的基站，其中，所述下发单元，还设置为：当对所述扩展带宽或第二系统带宽单独调度时，在一个TTI内下发一个PDCCH对所述扩展带宽或第二系统带宽的资源进行调度；当对所述扩展带宽和第二系统带宽同时调度时，在一个TTI内下发两个PDCCH分别对所述扩展带宽和第二系统带宽的资源进行调度，所述PDCCH中的DCI格式支持跨载波调度，所述DCI通过增加的CIF标识位来区分所述扩展带宽资源调度的PDCCH和所述第二系统带宽资源调度的PDCCH。
  15. 根据权利要求14所述的基站，所述基站还包括：
    动态调配单元，设置为：同时对所述扩展带宽和第二系统带宽的资源进行调度时，根据所述扩展带宽和第二系统带宽上PRB利用率和所述终端对PRB的需求，当单独使用所述扩展带宽或所述第二系统带宽的PRB能满足所述终端需求时，向所述终端下发MAC CE，以通知所述终端仅在所述扩展带宽或所述第二系统带宽对所述终端分配PRB。
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