[go: up one dir, main page]

WO2017067236A1 - Procédé de planification prenant en charge une bande passante non standard, et station de base - Google Patents

Procédé de planification prenant en charge une bande passante non standard, et station de base Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
bandwidth
terminal
extended
system bandwidth
standard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/089184
Other languages
English (en)
Chinese (zh)
Inventor
刘振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2017067236A1 publication Critical patent/WO2017067236A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de planification prenant en charge une bande passante non standard, et une station de base. Le procédé comprend les opérations suivantes : une station de base configure une première bande passante de système et une seconde bande passante de système, et distribue la seconde bande passante de système à un terminal au moyen d'informations de diffusion, une bande passante étendue étant acquise en soustrayant la seconde bande passante de système à la première bande passante de système ; lorsque le terminal accède à une cellule au niveau de la seconde bande passante de système, recevoir des informations d'indication qui sont envoyées par le terminal et qui sont utilisées pour indiquer si le terminal prend en charge une bande passante non standard ; et lorsqu'il est déterminé, selon les informations d'indication, que le terminal prend en charge la bande passante non standard, distribuer un identificateur de planification entre porteuses au terminal prenant en charge la bande passante non standard, l'identificateur de planification entre porteuses étant utilisé pour indiquer que le terminal est planifié sur la bande passante étendue et/ou la seconde bande passante de système.
PCT/CN2016/089184 2015-10-21 2016-07-07 Procédé de planification prenant en charge une bande passante non standard, et station de base Ceased WO2017067236A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510688842.5A CN106612547B (zh) 2015-10-21 2015-10-21 支持非标准带宽的调度方法及基站
CN201510688842.5 2015-10-21

Publications (1)

Publication Number Publication Date
WO2017067236A1 true WO2017067236A1 (fr) 2017-04-27

Family

ID=58556623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/089184 Ceased WO2017067236A1 (fr) 2015-10-21 2016-07-07 Procédé de planification prenant en charge une bande passante non standard, et station de base

Country Status (2)

Country Link
CN (1) CN106612547B (fr)
WO (1) WO2017067236A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107484203A (zh) * 2017-07-24 2017-12-15 武汉虹信通信技术有限责任公司 一种用于支持扩展带宽的数据传输方法
CN109309960B (zh) * 2017-07-28 2023-09-08 中国移动通信有限公司研究院 一种多终端调度方法、信令冲突的处理方法、基站及终端
JP7037635B2 (ja) 2017-08-04 2022-03-16 北京小米移動軟件有限公司 データ送信方法、デバイス、およびコンピュータ可読記憶媒体
JP6917480B2 (ja) 2017-08-11 2021-08-11 北京小米移動軟件有限公司Ｂｅｉｊｉｎｇ Ｘｉａｏｍｉ Ｍｏｂｉｌｅ Ｓｏｆｔｗａｒｅ Ｃｏ．，Ｌｔｄ． クロスキャリアスケジューリング方法及び装置
AU2017439930A1 (en) * 2017-11-15 2020-06-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Data transmission method, terminal device and network device
CN111937452A (zh) * 2018-04-04 2020-11-13 华为技术有限公司 通信方法、通信装置和系统
CN110958662B (zh) 2018-09-27 2022-11-22 维沃移动通信有限公司 一种接入控制方法、终端及网络侧设备
CN115734345A (zh) * 2021-08-30 2023-03-03 中国移动通信有限公司研究院 一种调度方法、网络侧设备和终端设备
CN117915353A (zh) * 2022-10-09 2024-04-19 中国电信股份有限公司 终端专用带宽配置方法、系统、设备及介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102045865A (zh) * 2009-10-23 2011-05-04 华为技术有限公司 基站和用户终端之间的通信方法及相应设备
US20120270585A1 (en) * 2010-01-11 2012-10-25 Huawei Technologies Co., Ltd. Data Transmission Method, Base Station and Terminal
CN104348600A (zh) * 2013-08-02 2015-02-11 中国移动通信集团公司 一种动态空闲频率的指示方法、系统及装置
CN104871581A (zh) * 2012-11-02 2015-08-26 瑞典爱立信有限公司 蜂窝无线通信中的灵活频谱支持

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102045865A (zh) * 2009-10-23 2011-05-04 华为技术有限公司 基站和用户终端之间的通信方法及相应设备
US20120270585A1 (en) * 2010-01-11 2012-10-25 Huawei Technologies Co., Ltd. Data Transmission Method, Base Station and Terminal
CN104871581A (zh) * 2012-11-02 2015-08-26 瑞典爱立信有限公司 蜂窝无线通信中的灵活频谱支持
CN104348600A (zh) * 2013-08-02 2015-02-11 中国移动通信集团公司 一种动态空闲频率的指示方法、系统及装置

Also Published As

Publication number Publication date
CN106612547B (zh) 2020-04-17
CN106612547A (zh) 2017-05-03

Similar Documents

Publication Publication Date Title
US11848875B2 (en) Communications device
US11395358B2 (en) Communications device
WO2017067236A1 (fr) Procédé de planification prenant en charge une bande passante non standard, et station de base
CN111279777B (zh) 在无线通信系统中根据组公共dci进行操作的方法和装置
CN108282303B (zh) 信号传输的方法及设备
KR101507867B1 (ko) 이종 네트워크 환경에서의 네트워크 통신 방법 및 단말
CN107872847B (zh) 传输数据的方法、网络设备和终端设备
CN105519222B (zh) 数据传输方法和设备
EP2244409A2 (fr) Procédé d'accouplement de porteuses dans un système de communication sans fil multi-porteuse
WO2013007144A1 (fr) Procédé, dispositif et système de transmission et de réception de données
CN105578608A (zh) 一种下行控制信息的发送、接收方法和设备
CN108631969A (zh) 一种指示信息的发送方法、接收方法、基站及终端
CN105227282B (zh) 一种ue、基站中的用于laa资源分配的方法和装置
CN102045865A (zh) 基站和用户终端之间的通信方法及相应设备
US11291029B2 (en) Scheduling information transmission method and apparatus
JP2012522471A5 (fr)
CN106162656A (zh) 数据传输的方法、基站、终端及通信系统
CN103973425B (zh) 一种下行控制信道资源分配的方法
US20190124705A1 (en) Identifier management method, apparatus, and system
CN106658725A (zh) 一种数据传输方法及装置
CN110741590B (zh) 免授权频谱的信道传输方法及网络设备、终端
WO2016026087A1 (fr) Procédé et appareil de transmission de données
WO2020061755A1 (fr) Procédé d'indication d'une approche de mappage de ressources, et produit associé
CN111164927B (zh) 无线通信系统中生成参考信号序列的方法和装置
WO2015014125A1 (fr) Procédé et dispositif pour accéder à des canaux

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16856673

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16856673

Country of ref document: EP

Kind code of ref document: A1