WO2015058401A1 - 数据调度方法、装置、基站和终端 - Google Patents

数据调度方法、装置、基站和终端 Download PDF

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Publication number
WO2015058401A1
WO2015058401A1 PCT/CN2013/085947 CN2013085947W WO2015058401A1 WO 2015058401 A1 WO2015058401 A1 WO 2015058401A1 CN 2013085947 W CN2013085947 W CN 2013085947W WO 2015058401 A1 WO2015058401 A1 WO 2015058401A1
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Prior art keywords
data scheduling
data
granularity
wireless communication
specific spectrum
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PCT/CN2013/085947
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English (en)
French (fr)
Inventor
闫志宇
马莎
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020167013325A priority Critical patent/KR101766706B1/ko
Priority to CN201380002073.8A priority patent/CN104854904B/zh
Priority to JP2016526006A priority patent/JP6356793B2/ja
Priority to EP13895898.8A priority patent/EP3051873A4/en
Priority to PCT/CN2013/085947 priority patent/WO2015058401A1/zh
Publication of WO2015058401A1 publication Critical patent/WO2015058401A1/zh
Priority to US15/137,844 priority patent/US20160242200A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a data scheduling method, apparatus, base station, and terminal.
  • Frequency is the cornerstone of wireless communication. From the application point of view, the spectrum is divided into unlicensed spectrum and licensed spectrum. According to the latest published international spectrum white paper, unlicensed spectrum resources will be larger than authorized spectrum resources.
  • the main technology used on the unlicensed spectrum is Wireless Fidelity (WiFi); the licensed spectrum is used for other wireless communication technologies, such as Long Term Evolution (LTE) technology.
  • WiFi Wireless Fidelity
  • LTE Long Term Evolution
  • Figure 1 shows the resource scheduling of the LTE system and the WiFi system that may occur on the shared spectrum during the time of an LTE radio frame.
  • 10 subframes of the LTE system are included, and the frequency domain width is 20 MHz.
  • the LTE system occupies system resources to schedule user data, because LTE is in The scheduling granularity TTI on the time domain is 1 ms, that is, LTE performs user scheduling per lms in the time domain.
  • the result of the system resource usage monitoring by the WiFi system will be that the resources in the time period are unavailable, until the scheduling of the LTE system.
  • the frequency resource is idle before the WiFi user can detect that the resource is available.
  • the WiFi user data is scheduled.
  • the scheduling is in The end of the Subframe #3 period. Since the scheduled user data of the LTE system starts from the beginning of a Subframe, the opportunity for scheduling user data of the next LTE system can only start from Subframe #4, so that some resources in Subframe #3 will be unused. To.
  • the system scheduling resource size is different during the scheduling user data transmission process, and the transmission opportunity occurs when the system shares the specific spectrum resources during the data transmission process. Uneven distribution and insufficient utilization of system resources.
  • an object of the embodiments of the present invention is to provide a data scheduling method, apparatus, base station, and terminal, to overcome the difference in the physical resource allocation manner between the wireless communication systems and the system scheduling resource size in the prior art.
  • the system occurs when sharing specific spectrum resources The problem of uneven distribution of transmission opportunities and insufficient utilization of system resources.
  • the embodiment of the present invention provides the following technical solutions:
  • a first aspect of the present invention provides a data scheduling method, which is applied to a base station, and includes: configuring a data scheduling granularity of a first wireless communication system on a carrier of a specific frequency spectrum in a time domain and a frequency domain;
  • the data scheduling of the terminal is performed according to the configured data scheduling granularity of the carrier on the specific frequency spectrum, and the data scheduling result obtained after the data scheduling is performed is indicated to the terminal.
  • the data scheduling granularity of the first wireless communication system on the carrier of the specific frequency spectrum in the time domain and the frequency domain including:
  • the effective length of the data scheduling of the first wireless communication system is the duration of the shared data channel available during the period of the data scheduling
  • the effective length of the data scheduling of the first wireless communication system is a frequency domain width of one physical resource block
  • the first wireless communication system is a long term evolution LTE system.
  • the data scheduling granularity of the first wireless communication system on the carrier of the specific frequency spectrum in the time domain and the frequency domain includes:
  • the effective length of data scheduling of a wireless communication system is the time domain length of one orthogonal frequency division multiplexing OFDM symbol;
  • the effective length of the data scheduling of the first wireless communication system is the S times bandwidth of the shared data channel available in the period of the data scheduling, and S is a value greater than 0 and less than or equal to 1;
  • the first wireless communication system is an LTE system
  • the second wireless communication system is a wireless fidelity WiFi system.
  • the data scheduling granularity of the wireless communication system on the carrier of the specific spectrum configured in the time domain and the frequency domain includes: Determining whether there is a second wireless communication system applied to the carrier of the particular frequency spectrum; when present, configuring the first wireless communication system on the carrier sharing the specific frequency spectrum on the specific frequency spectrum in the time domain and the frequency domain Data scheduling granularity;
  • the effective length of the data scheduling of the first wireless communication system is a time domain length of one OFDM symbol
  • the effective length of the data scheduling of the first wireless communication system is the S times bandwidth of the shared data channel available in the period of the data scheduling, and S is a value greater than 0 and less than or equal to 1;
  • the effective length of the data scheduling of the first wireless communication system is the duration of the shared data channel available during the period of the data scheduling
  • the effective length of the data scheduling of the first wireless communication system is a frequency domain width of one physical resource block
  • the first wireless communication system is an LTE system
  • the second wireless communication system existing on a specific spectrum is a WiFi system.
  • the data scheduling granularity option on the part or all of the carriers on the specified frequency spectrum is indicated to the terminal, including:
  • the data scheduling granularity on the time domain and/or the frequency domain is indicated to the terminal by scheduling information of carriers on other spectrums other than the carrier sharing the specific frequency spectrum.
  • the data scheduling granularity option on the part or all of the configured carriers on the specific frequency spectrum is indicated to the terminal, where: the first wireless communication system is When the data scheduling granularity on the time domain and the frequency domain, the scheduling information on the carrier sharing the specific spectrum, or the scheduling information of the carrier on the spectrum other than the carrier sharing the specific spectrum, the data The scheduling granularity is indicated to the terminal;
  • the condition that the indication is not sent to the terminal is that the first wireless communication system is in the time domain and the frequency domain on the carrier that is not sharing the specific spectrum on the specific spectrum in the data scheduling granularity option.
  • Data scheduling granularity is that the first wireless communication system is in the time domain and the frequency domain on the carrier that is not sharing the specific spectrum on the specific spectrum.
  • the data scheduling of the terminal is performed according to the configured data scheduling granularity of the carrier on the specific spectrum, including:
  • the data scheduling of the terminal is performed according to the configured data scheduling granularity of the carrier on the specific spectrum, including:
  • the data scheduling of the terminal is performed according to the configured data scheduling granularity of the carrier on the specific spectrum, including:
  • the effective length on the non-shared specific spectrum on the specific spectrum is the data scheduling granularity of the duration of the shared data channel available in the period of the data scheduling;
  • the non-shared specific frequency spectrum on the specific frequency spectrum is a data scheduling granularity of an S times bandwidth of a shared data channel available in a period of the data scheduling according to an effective length in the frequency domain;
  • the indicating the data scheduling result to the terminal includes:
  • the method further includes: When the data scheduling granularity of each carrier on the specific spectrum of the configuration is different, the data scheduling result indicated to the terminal is represented by a resource scheduling field of the same scheduling information.
  • the method further includes:
  • the demodulation reference signal is used for resource mapping according to the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum configured.
  • a second aspect of the embodiments of the present invention provides a data scheduling method, which is applied to a terminal, including: receiving, by a base station, a data scheduling granularity option on a part or all of a specific frequency spectrum, where the data scheduling granularity option includes configuration Data scheduling granularity of the first wireless communication system on the carrier of the particular spectrum in the time domain and on the frequency domain;
  • the demodulation reference signal is used for resource mapping according to the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum configured.
  • the receiving, by the base station, the data scheduling result includes:
  • the data scheduling result of the first wireless communication system on the specific frequency spectrum is received according to the scheduling information on the carrier sharing the specific frequency spectrum, including:
  • a third aspect of the embodiments of the present invention provides a data scheduling apparatus, which is applied to a base station side, and includes: a configuration unit, configured to configure data scheduling on a time domain and a frequency domain of a first wireless communication system on a carrier of a specific frequency spectrum. Granularity, and sending the data scheduling granularity to the indication unit;
  • the indication unit is configured to indicate, to the terminal, the data scheduling granularity option on part or all of the carriers on the specific frequency spectrum, and send the data scheduling granularity to the data scheduling unit;
  • the data scheduling unit is configured to perform data scheduling on the terminal according to the data scheduling granularity indicated in the data scheduling granularity option, and indicate a corresponding data scheduling result to the terminal.
  • the first data transmission unit is configured to receive the data scheduling granularity sent by the configuration unit and the data scheduling result sent by the data scheduling unit, and obtain a mapping demodulation reference in each data scheduling granularity of the scheduled data.
  • the signal is transmitted to the terminal according to the demodulation of the scheduled data according to the demodulation reference signal, wherein the demodulation reference signal is used for resource mapping according to the data scheduling granularity outputted in the configuration unit.
  • the configuration unit includes: a detecting module, configured to detect whether a second wireless communication system is applied to a carrier of a specific frequency spectrum, and when not present, perform the first a configuration module;
  • the first configuration module is configured to be configured in the time domain, where an effective length of the first wireless communication system is a duration of a shared data channel available in the data scheduling period, and in the frequency domain, the first wireless The effective length of the communication system is the data scheduling granularity of the frequency domain width of one resource block.
  • the configuration unit includes: a detecting module, configured to detect whether a second wireless communication system is applied to a carrier of a specific frequency spectrum, and when present, perform a second a configuration module or a third configuration module;
  • the second configuration module is configured to configure, in the time domain, an effective length of the data scheduling of the first wireless communication system is a time domain length of one orthogonal frequency division multiplexing OFDM symbol;
  • the data scheduling effective length of the first wireless communication system is a data scheduling granularity of the S times bandwidth of the shared data channel available in the data scheduling period, and S is a value greater than 0 and less than or equal to 1;
  • the third configuration module is configured to configure a data scheduling granularity of the carrier sharing the specific frequency spectrum on the specific frequency spectrum in the time domain and the frequency domain of the first wireless communication system;
  • the effective length of the data scheduling of the wireless communication system is the time domain length of one OFDM symbol; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is the shared data channel available in the data scheduling period S times the bandwidth, S is a value greater than 0 and less than or equal to 1.
  • the indication unit includes: an acquiring module, configured to acquire, in the data scheduling granularity option, the first wireless communication system on a carrier of the specific frequency spectrum Data scheduling granularity on the time domain and/or frequency domain;
  • a first indication module configured to: indicate, by using the scheduling information on the carrier that shares the specific spectrum, the data scheduling granularity on the time domain and/or the frequency domain to the terminal, and send the data scheduling granularity to the Data scheduling unit;
  • the second indication module is configured to indicate, by using the scheduling information of the carrier on the spectrum other than the carrier sharing the specific spectrum, the data scheduling granularity on the time domain and/or the frequency domain to the terminal, and Transmitting the data scheduling granularity to the data scheduling unit.
  • the data scheduling unit includes: a first data scheduling module, configured to: according to the data scheduling of the first wireless communication system in the time domain
  • the length is the duration of the shared data channel available in the data scheduling period
  • the effective length of the data scheduling of the first wireless communication system in the frequency domain is the data scheduling granularity of the frequency domain width of one resource block PRB.
  • a second indication module configured to indicate, according to the scheduling information on the non-shared specific frequency spectrum, the data scheduling result on the shared specific frequency spectrum in the specific frequency spectrum to the terminal, or by sharing the scheduling information on the specific frequency spectrum to indicate the Sharing the data scheduling result on a specific spectrum to the terminal, and sending the data scheduling result to the first data transmission unit;
  • the non-shared or shared scheduling information on a specific spectrum is a physical downlink control channel.
  • the data scheduling unit when the configuration is performed by using the second configuration module, includes:
  • a second data scheduling module configured to use, according to the S times bandwidth of the shared data channel available in the period scheduled by the data in the frequency domain, as a data length of the effective length, and/or according to the scheduling information in the time domain Dedicating a data length of the effective length to perform data scheduling on the terminal, and acquiring a corresponding data scheduling result;
  • a third indication module configured to indicate, by using the scheduling information of the primary cell on the LTE unshared spectrum, the data scheduling result on the secondary cell on the shared spectrum to the terminal, or by using the scheduling information of the secondary cell on the LTE shared spectrum Transmitting the data scheduling result on the secondary cell on the shared spectrum to the terminal, and sending the data scheduling result to the first number According to the transmission unit.
  • the data scheduling unit when the configuration is performed by using the third configuration module, includes:
  • a third data scheduling module configured to: according to a data scheduling granularity of a carrier sharing a specific spectrum on the specific frequency spectrum in a time domain and a frequency domain, or a carrier of a non-shared specific frequency spectrum in the specific frequency spectrum in a time domain and a frequency The data scheduling granularity on the domain, performing data scheduling on the terminal, and acquiring corresponding data scheduling results;
  • a fourth indication module configured to indicate, by using the scheduling information on the specific spectrum that is not shared, the data scheduling result on the shared specific frequency spectrum to the terminal, or to share the specific specific spectrum by using the scheduling information on the shared specific frequency spectrum
  • the data scheduling result is indicated to the terminal, and the data scheduling result is sent to the first data transmission unit.
  • the data scheduling unit further includes:
  • a unified format module configured to use the same scheduling information when the data scheduling result is performed on the terminal by using different data scheduling granularity of the first wireless communication on the specific frequency spectrum in the data scheduling granularity option Resource scheduling field representation.
  • a fourth aspect of the embodiments of the present invention provides a base station, including:
  • a memory having a storage medium in which a program for performing data scheduling on the base station side is stored;
  • a processor coupled to the memory via a bus, the processor executing the program by the method of data scheduling provided by the above-described embodiments of the present invention.
  • a fifth aspect of the embodiments of the present invention provides a data scheduling apparatus, which is applied to a terminal of a wireless communication system, and includes:
  • a receiving unit configured to receive a data scheduling granularity option indicated by the base station, where the data scheduling granularity option includes a data scheduling granularity of the first wireless communication system on the carrier of the configured specific frequency spectrum, where the specific frequency spectrum includes a shared specific spectrum and a non-shared Specific spectrum;
  • a second data transmission unit configured to receive a data scheduling result indicated by the base station, perform data transmission with the base station according to a result of demodulating the data scheduling result according to the demodulation reference signal, where the demodulation reference signal is configured according to the configuration
  • the data scheduling granularity of the first wireless communication system on the specific frequency spectrum is used for resource mapping.
  • the first aspect of the fifth aspect of the embodiment of the present invention is an implementation manner, where the second data transmission unit package Includes:
  • a first receiving module configured to receive, according to the scheduling information on the shared specific frequency spectrum, a data scheduling result of the first wireless communication system on a carrier of the specific frequency spectrum;
  • the second receiving module is configured to receive, according to the scheduling information on the carrier on the spectrum other than the shared specific frequency, the data scheduling result of the first wireless communication system on the carrier of the specific frequency spectrum.
  • the first receiving module includes:
  • a blind detection module configured to blindly check a physical downlink control channel of the at least one OFDM symbol, and acquire scheduling information on the specific spectrum.
  • a sixth aspect of the embodiments of the present invention provides a terminal, including: a memory having a storage medium, where the terminal stores a program for performing data scheduling on the terminal side;
  • a processor coupled to the memory via a bus, the processor executing the program by the method of data scheduling provided by the above-described embodiments of the present invention.
  • the embodiment of the present invention discloses a data scheduling method, a device, a base station, and a terminal, as compared with the prior art.
  • the method configures the data scheduling granularity of the wireless communication system on the carrier of each specific frequency spectrum, and when the specific frequency spectrum is shared with other wireless communication systems, the data scheduling of the terminal is performed by using the configured data scheduling granularity of the carrier on the specific frequency spectrum, and The data scheduling result corresponding to the carrier on the specific spectrum is indicated to the terminal.
  • the system realizes a more uniform distribution mechanism and more fully utilizes system resources when utilizing carrier resources on a specific spectrum.
  • FIG. 1 is a schematic diagram of spectrum utilization when LTE system and WiFi system share data on a specific spectrum
  • Figure 2 is a definition diagram of the PRB of the LTE system
  • FIG. 3 is a schematic diagram of spectrum utilization after the LTE system performs data scheduling on the licensed spectrum
  • 4 is a schematic diagram of the utilization of the spectrum after the WiFi system performs data scheduling on the unlicensed spectrum
  • FIG. 5 is a flowchart of a data scheduling method according to Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of a data scheduling method according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram of a method for indicating a data scheduling result of a terminal according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of another method for indicating a data scheduling result of a terminal according to Embodiment 3 of the present invention.
  • FIG. 9 is a schematic diagram of another resource occupation in a scheduling period of the wireless communication system after indicating the data scheduling result of the terminal according to the third embodiment of the present invention.
  • FIG. 10 is a schematic diagram of data scheduling of a terminal based on a data scheduling granularity according to Embodiment 3 of the present invention.
  • FIG. 11 is a schematic diagram of data scheduling of a terminal based on another data scheduling granularity according to Embodiment 3 of the present invention.
  • FIG. 12 is a schematic diagram of data scheduling of a terminal based on another data scheduling granularity according to Embodiment 3 of the present invention.
  • FIG. 13 is a resource mapping manner of a demodulation reference signal according to Embodiment 3 of the present invention
  • FIG. 14 is a flowchart of a data scheduling method according to Embodiment 4 of the present invention.
  • FIG. 16 is a schematic structural diagram of a data scheduling apparatus according to Embodiment 5 of the present invention
  • FIG. 17 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention
  • FIG. 18 is a schematic structural diagram of a data scheduling apparatus according to Embodiment 6 of the present invention
  • FIG. 19 is a schematic structural diagram of a terminal according to Embodiment 6 of the present invention.
  • UE User Equipment, user equipment
  • WiFi Wireless Fidelity, wireless fidelity
  • eNB evolved Node B, evolved base station
  • OFDM Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing
  • Subframe sub-element
  • LTE Long Term Evolution, long-term evolution
  • PRB Physical Resource Block, resource block
  • PDSCH Physical Downlink/Uplink Shared Channel, physical downlink/uplink shared channel
  • PDCCH Physical Downlink Control Channel, physical downlink control channel
  • E-PDCCH enhanced physical downlink control channel
  • TTI scheduling granularity
  • Secondary cell Secondary cell: Secondary cell.
  • the uplink/downlink time-frequency domain physical resources are grouped into resource blocks (PRBs), which are scheduled and allocated as physical resource units.
  • PRBs resource blocks
  • one PRB includes 12 consecutive subcarriers in the frequency domain (the number of subcarriers in one PRB is N ), and 7 consecutive orthogonal frequency division multiplexing (OFDM) in the time domain. ) symbol (6 in the case of Extended CP). That is, a PRB has a frequency domain width ⁇ / of 180 kHz and a time domain length of 0.5 ms.
  • R0 in FIG. 2 refers to the pilot symbol of antenna 0;
  • R1 is the pilot symbol of antenna 1;
  • R2 is the pilot symbol of antenna 2; and
  • R4 is the pilot symbol of antenna 3.
  • the evolved base station In the downlink transmission of the LTERel-8 / 9 / 10 communication system, the evolved base station (eNB) will send a physical downlink/uplink shared channel (PDSCH/PUSCH) to each scheduled user equipment (UE) according to the scheduling result. ), and its corresponding physical downlink control channel (PDCCH), and the PDCCH and PDSCH are time division multiplexed in one subframe (Subframe). Therefore, in the LTE system, the primary scheduling time of the UE is 1 ms, and the frequency domain is usually "* (" ⁇ N and the number of downlink or uplink PRBs respectively.
  • the slash portion shown in Figure 3 is LTE. Schematic diagram of the utilization of the spectrum after the system performs data scheduling on the licensed spectrum.
  • the transmission resource of the uplink and downlink data is scheduled for the user through the RTS/CTS protocol.
  • WiFi uses OFDM modulation, and the length of one OFDM symbol is 4 microseconds.
  • the frequency domain resource occupied by one data transmission process is w , that is, the bandwidth of the entire spectrum resource (shown as 20 MHz in FIG. 4), and the time domain
  • the resource is " ⁇ , where is the length of time of one OFDM symbol," and the size depends on the size of the data packet to be transmitted and the channel condition of the user.
  • the logarithm in the data transmission process based on the foregoing LTE system and the WiFi system According to the different processing modes, the LTE system and the WiFi system cause the problem that the transmission opportunities are unevenly distributed and the system resources are insufficiently utilized when sharing carrier resources on a specific spectrum in the process of data transmission.
  • the embodiment of the invention discloses a data scheduling method, device, base station and terminal. The details are described in detail by the following examples.
  • the core idea of the embodiment of the present invention is: on the base station side, before performing data transmission, by configuring the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum, in the process of data transmission, using the configured specific spectrum
  • the data scheduling granularity of the carrier on the carrier performs data scheduling on the terminal, and indicates the data scheduling result to the terminal.
  • the data scheduling granularity of the first wireless communication system and the data scheduling message of the base station on the carrier of the specific spectrum configured by the base station are acquired, and the data scheduling result is obtained according to the data scheduling granularity and the data scheduling message.
  • FIG. 5 it is a flowchart of a data scheduling method according to an embodiment of the present invention.
  • the data scheduling method is applied to a base station, and the method includes the following steps:
  • Step S101 The base station configures a data scheduling granularity of the first wireless communication system on the carrier of the specific frequency spectrum in the time domain and the frequency domain.
  • the base station specifically configures the data scheduling granularity of the first wireless communication system on the time domain and the frequency domain on the carrier of the specific frequency spectrum.
  • the carrier of the specific spectrum includes a carrier on a specific spectrum and a carrier on a non-shared specific spectrum;
  • the shared specific spectrum corresponds to a carrier that is allowed to be shared among different wireless communication systems among multiple carriers, and is not shared.
  • the spectrum corresponds to a carrier of a plurality of carriers that only allows communication by a particular wireless communication system.
  • the data scheduling granularity of the carrier sharing the specific spectrum for the current first wireless communication system is configured from the time domain and the frequency domain respectively on the carrier sharing the specific spectrum in the specific frequency spectrum.
  • the data scheduling granularity of the carrier on the shared frequency spectrum on the domain and the frequency domain and the data scheduling granularity of the second wireless communication system sharing the spectrum resource are closer, such that the first wireless communication system and the second wireless communication system are sharing specific Resource sharing on the spectrum is more adequate and reasonable.
  • the base station may adopt a default configuration manner, or may configure a data scheduling granularity of the first wireless communication system on a carrier of a specific spectrum by using an allocation manner when sharing a specific spectrum resource.
  • Step S102 The base station indicates, to the terminal, a data scheduling granularity option on part or all of the carriers on the specific spectrum.
  • the data scheduling granularity option includes part or all of a specific frequency spectrum.
  • the data scheduling granularity of the first wireless communication system configured on the carrier in the time domain and the frequency domain.
  • the data scheduling granularity option indicates the data scheduling granularity on the frequency domain and/or the time domain on part or all of the carriers on the specific frequency spectrum to the terminal.
  • the terminal can confirm in which manner the data scheduling granularity of the first wireless communication system on the carrier on the specific frequency spectrum is configured in step S101.
  • Step S103 The base station performs data scheduling on the terminal according to the data scheduling granularity of the carrier on the specific spectrum, and indicates the data scheduling result obtained after performing data scheduling to the terminal.
  • step S103 the base station performs data scheduling on the terminal according to the data scheduling granularity type of the carrier on the specific spectrum configured in step S101, and obtains a corresponding data scheduling result. That is, for the carrier adopting the default data scheduling granularity configuration mode in step S101, the base station performs data scheduling on the terminals on the carriers according to the existing manner; and uses the data when sharing the specific spectrum resources with other systems in step S101. The carrier of the granularity configuration mode is scheduled, and the base station performs data scheduling on the terminal on the carriers according to the configured new data scheduling granularity.
  • the embodiment of the present invention configures the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum, so that the data scheduling granularity in the time domain and the frequency domain on the carrier of the specific spectrum and the second wireless communication system coexisting exist.
  • the data scheduling granularity is closer, and the data scheduling of the terminal is performed by using the configured data scheduling granularity of the carrier on the specific spectrum.
  • the corresponding data scheduling result is indicated to the terminal, and the system is utilized in the specific spectrum based on the foregoing configuration manner.
  • specific spectrum resources are used, the distribution opportunities are more uniform and the system resources are more fully utilized.
  • the specific frequency is configured.
  • the first wireless communication system on the carrier of the language has the data scheduling granularity in the time domain and the frequency domain, it can be configured in two ways according to the situation of the first wireless communication system existing on the carrier of the specific spectrum, thereby Get the data scheduling granularity after configuration in two different ways.
  • the first way is: There is no second wireless communication system applied to the carrier of a particular spectrum, in which case all carriers of a particular spectrum are determined to use the default data scheduling granularity of the first wireless communication system.
  • the second way is: when there is a second wireless communication system applied to a carrier of a specific spectrum, there are two Case: The first case is to determine that the data scheduling granularity is the same on all carriers of a particular spectrum and different from the default configuration of the first wireless communication system; the second case is to determine the sharing of a specific spectrum in a specific spectrum.
  • the data scheduling granularity on the carrier is different from the default data scheduling granularity of the first wireless communication system, and the default configuration mode is used on the carrier of the specific spectrum in the non-shared specific spectrum, that is, the first wireless communication system is used by default.
  • the scheduling granularity In the second embodiment of the present invention, the data scheduling granularity configured in two ways is described.
  • the configuration method adopted is:
  • the LTE system is a first wireless communication system
  • the data scheduling granularity of LTE is the existing scheduling granularity PRB of LTE. That is, in the time domain, the effective length of the data scheduling granularity of the LTE is the duration of the shared data channel available in the data scheduling period; in the frequency domain, the effective length of the LTE data scheduling granularity is a PRB frequency. Domain width.
  • the above configuration can be the default data scheduling granularity on a particular spectrum.
  • the carrier sharing the specific spectrum in the specific spectrum has both the LTE system and the WiFi system (the LTE system and the WiFi system)
  • the WiFi system is a second wireless communication system, there are two ways to configure it:
  • the first case is: for the data scheduling of the current LTE system, in the time domain, the data scheduling granularity of the LTE system is the time domain length of one OFDM symbol; in the frequency domain, the effective length of the data scheduling granularity of the LTE system is The S times bandwidth of the shared data channel available in the period of the data scheduling, and the value of S is a value greater than 0 and less than or equal to 1.
  • the effective length of the data scheduling granularity of the LTE system in the frequency domain is generally equal to the bandwidth of the shared data channel available in the data scheduling period.
  • the bandwidth of the shared data channel available in the data scheduling period is divided into 1/S according to the data scheduling granularity, and one of the shared data channels is divided.
  • the bandwidth is used as the effective length of the data scheduling granularity in the frequency domain.
  • the resources in each copy are integers or approximately equal to integers.
  • the second case is a first case
  • the data scheduling granularity of the LTE system is the time domain length of one OFDM symbol;
  • the effective length of the data scheduling granularity of the LTE system is the S times bandwidth of the shared data channel available in the data scheduling period, and the value of S is greater than 0 and less than or equal to 1.
  • the effective length of the data scheduling granularity of the LTE system in the frequency domain is generally equal to the bandwidth of the shared data channel available in the data scheduling period.
  • the bandwidth of the shared data channel available in the data scheduling period is divided into 1/S according to the data scheduling granularity, and one of the shared data channels is divided.
  • the bandwidth is used as the effective length of the data scheduling granularity in the frequency domain.
  • the resources in each copy are integers or approximately equal to integers.
  • the data scheduling granularity of the LTE is LTE existing scheduling granularity PRB for data scheduling of each LTE system. That is, in the time domain, the effective length of the data scheduling granularity of the LTE is the duration of the shared data channel available in the data scheduling period; in the frequency domain, the effective length of the LTE data scheduling granularity is a PRB frequency. Domain width. This configuration can be the default data scheduling granularity on a particular spectrum.
  • the base station indicates the data scheduling granularity option on part or all of the carriers on the specific spectrum to the terminal.
  • all carriers of a particular spectrum use the default data scheduling granularity.
  • the indication may be unnecessary, and the terminal uses the default data scheduling granularity when the data scheduling granularity configuration indication of the carrier on the specific frequency spectrum is not received;
  • the base station needs to be on all carriers on the specific spectrum.
  • the data scheduling granularity option is indicated to the terminal; in the second case, since the default configuration is used on the carrier of the non-shared specific spectrum on the specific spectrum, no indication is needed at this time, and the terminal does not have the non-shared specific spectrum on the specific spectrum.
  • the data scheduling granularity configuration indication on the carrier that is, the default data scheduling granularity is used on the carrier of the non-shared specific spectrum on the specific frequency spectrum, and only the data scheduling granularity on the partial carrier where the specific spectrum is shared on the specific spectrum is required.
  • the option is indicated to the terminal.
  • the data scheduling granularity of the LTE system in the time domain and the frequency domain on the carrier of the specific spectrum can be obtained by using the foregoing configuration, and the data scheduling granularity of the LTE system configured by the foregoing is compared with the WiFi system on the carrier sharing the specific spectrum.
  • the data scheduling granularity is as close as possible, so that the sharing of the specific spectrum resources between the LTE system and the WiFi system is more fully and reasonably reasonable.
  • At least three types of data scheduling granularity can be obtained, that is, the first type, the PRB data scheduling granularity; and the second data scheduling granularity is an OFDM in the time domain.
  • the symbol which occupies the entire bandwidth in the frequency domain;
  • the third data scheduling granularity is an OFDM symbol in the time domain and a bandwidth of S times in the frequency domain.
  • Different values of S can be obtained by using different values of S.
  • the base station may number the at least three types of data scheduling granularities, and only send the number when the terminal is notified later.
  • FIG. 6 is a flowchart of a data scheduling method according to Embodiment 2 of the present invention, which mainly includes the following steps:
  • Step S201 the base station determines whether the second wireless communication system is applied to the carrier of the specific frequency spectrum. If not, step S202 is performed; if yes, step S2031 or step S2032 is performed; in step S201, the base station currently performs data scheduling.
  • the first wireless communication system is an LTE system.
  • the data scheduling granularity of the carrier on the specific frequency spectrum is configured in an existing manner; the data scheduling granularity of the carrier on the specific frequency spectrum configured is an existing scheduling granularity PRB of the LTE system, that is, in the time domain.
  • the effective length of the data scheduling of the first wireless communication system is the duration of the shared data channel available in the data scheduling period; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is one physical resource block Frequency domain width; the granularity of the data scheduling may be the default data scheduling granularity in the first wireless communication system.
  • step S202 the first wireless communication system currently performing data scheduling by the base station is an LTE system.
  • Step S2031 Configure a data scheduling granularity of the carrier on the specific frequency spectrum.
  • the effective length of the data scheduling of the first wireless communication system is one.
  • the time domain length of the OFDM symbol; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is the S times bandwidth of the shared data channel available in the period of the data scheduling, and S is a value greater than 0 and less than or equal to 1. ;
  • the current first wireless communication system is an LTE system
  • the second wireless communication system existing on a specific spectrum is a WiFi system.
  • Step S2032 configuring a data scheduling granularity of the carrier sharing the specific spectrum on the specific frequency spectrum in the time domain and the frequency domain; in the time domain, the effective length of the data scheduling of the first wireless communication system is a time domain of one OFDM symbol Length; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is the S times bandwidth of the shared data channel available in the period of the data scheduling, and S is a value greater than 0 and less than or equal to 1.
  • the granularity is the existing scheduling granularity PRB of the LTE system, that is, in the time domain, the effective length of the data scheduling of the first wireless communication system is the duration of the shared data channel available in the period of the data scheduling; in the frequency domain, The effective length of the data scheduling of the first wireless communication system is the frequency domain width of one PRB, and the granularity of the data scheduling may be the default data scheduling granularity in the first wireless communication system.
  • the current first wireless communication system is an LTE system
  • the second wireless communication system existing on the carrier of the specific spectrum is a WiFi system.
  • the data scheduling granularity of the LTE system is as close as possible to the data scheduling granularity of the WiFi system, so that when the LTE system is used to share a specific spectrum, not only can the specific spectrum resources be effectively utilized, but also more efficient wireless access can be provided. To meet the growing demand for mobile broadband services.
  • Step S204 indicating, to the terminal, a data scheduling granularity option on part or all of the configured carriers on the specific frequency spectrum;
  • step S204 when the data scheduling granularity configuration of step S202 is adopted, the data scheduling granularity option on some or all of the carriers on the specific frequency spectrum includes: the LTE system configured through step S202. Data scheduling granularity on the time domain and/or frequency domain. If the data scheduling granularity used in the first wireless communication system is the default data scheduling granularity on the time domain and/or the frequency domain, the data scheduling granularity may not need to be indicated to the terminal by signaling.
  • the data scheduling granularity option on the carrier on the specific frequency spectrum includes: the LTE system configured in step S2031 in the time domain and/or the frequency The granularity of data scheduling on the domain.
  • the data scheduling granularity configuration mode of the step S2032 When the data scheduling granularity configuration mode of the step S2032 is adopted, the data scheduling granularity on the specific frequency spectrum is different on the carrier sharing the specific frequency spectrum and the carrier sharing the specific frequency spectrum. If the data scheduling granularity on the non-shared specific spectrum carrier used in the first wireless communication system is the default data scheduling granularity, the signaling may not be required to indicate to the terminal that the non-shared specific frequency spectrum is on the carrier.
  • the data scheduling granularity configured through the step S202, the S2031, or the step S2032 may be embodied as a corresponding number, which is preset by the base station. Only the number can be sent when the subsequent base station notifies the terminal.
  • the data scheduling granularity of the first type of PRB is set to 1 in advance
  • the second data scheduling granularity is numbered 2
  • the third data scheduling granularity is numbered 3.
  • the base station correspondingly sets the allocation number according to the preset. That is, by indicating in step S204, the terminal may confirm, by using the specific content or number and/or the default data scheduling granularity in the indicated data scheduling granularity option, which way the base station is on the carrier of the specific spectrum.
  • the data scheduling granularity of the wireless communication system is configured.
  • Step S205 The base station performs data scheduling on the terminal according to the data scheduling granularity configured on the carrier of the specific spectrum, and indicates a corresponding data scheduling result to the terminal.
  • step S205 the base station performs data scheduling on the terminal according to the data scheduling granularity type configured in step S201. That is, when the data scheduling granularity configuration mode in step S202 is adopted, the base station performs data scheduling on the terminal according to the existing manner; and configures the specific frequency spectrum LTE in the configuration mode when sharing the spectrum resource with the WiFi system in step S2031. When the data scheduling granularity of the system is performed, the base station performs data scheduling on the terminal according to the configured data scheduling granularity close to the WiFi system.
  • the base station shares the specific frequency spectrum according to the configured data scheduling granularity of the approaching WiFi system.
  • the terminal performs data scheduling, and performs data scheduling on the terminal according to the existing manner on the non-shared specific spectrum.
  • the second embodiment of the present invention configures the data scheduling granularity of the LTE system on the carrier of the specific spectrum, so that the data scheduling granularity on the time domain and the frequency domain is closer to the data scheduling granularity of the WiFi system when there is a coexisting WiFi system. And performing data scheduling on the terminal by using the configured data scheduling granularity, and finally indicating the corresponding data scheduling result to the terminal, and based on the foregoing configuration manner, when the specific frequency resource is used between the LTE system and the WiFi system on the specific spectrum, Achieve more uniform distribution opportunities and make full use of system resources.
  • step S201 when step S201 is performed to determine that only the LTE system exists on the specific spectrum, step S2031 or step S2032 may be performed, and the data scheduling granularity of the LTE system is configured by using the configuration manner of step S2031 or step S2032.
  • the configuration mode in step S202 configures the data scheduling granularity of the LTE system, and the above gives a more preferred embodiment of the present invention.
  • a data scheduling method performing the step S102 shown in FIG. 5 and the step S204 shown in FIG. 6, the base station transmits the carrier of the specific spectrum.
  • the data scheduling granularity option is indicated to the terminal, in the obtaining the data scheduling granularity option, after the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum in the time domain and/or the frequency domain , there are two ways to indicate.
  • the first manner is: indicating, by using the scheduling information on the carrier sharing the specific spectrum, the data scheduling granularity on the time domain and/or the frequency domain to the terminal.
  • the second way is to indicate the data scheduling granularity on the time domain and/or the frequency domain to the terminal by using scheduling information of carriers on other spectrums other than the carrier sharing the specific spectrum.
  • the above two indication manners have no limitation on which data scheduling granularity is specified after which the configuration is generated.
  • a data scheduling method according to the first embodiment of the present invention and the second embodiment of the present invention: performing step S103 shown in FIG. 5 and step S205 shown in FIG.
  • the base station performs data scheduling on the terminal according to the data scheduling granularity on the carrier of the specific spectrum that is configured in the data scheduling granularity option, and indicates the corresponding data scheduling result to the terminal.
  • step S103 shown in FIG. 5 and step S205 shown in FIG. 6 there are at least two ways of performing data scheduling on the terminal, and there are at least two corresponding manners of indicating the data scheduling result to the terminal.
  • the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum is configured according to the preferred two different manners shown in the second embodiment of the present invention, and the data scheduling granularity on the carrier of the configured specific frequency spectrum is utilized.
  • the process of the terminal performing data scheduling and indicating the data scheduling result to the terminal is:
  • the corresponding data scheduling result is obtained according to the data scheduling granularity.
  • the data scheduling granularity is obtained on the terminal according to the configuration manner of the data scheduling granularity of the LTE system on the carrier of the specific spectrum in the step S202 as shown in FIG. 6, and the data scheduling result is indicated to the terminal:
  • the data scheduling result of the carrier on the specific spectrum may be indicated to the terminal by using the scheduling information on the non-shared specific spectrum, or may be indicated by sharing the scheduling information on the specific spectrum.
  • the scheduling information on the non-shared or shared specific frequency spectrum is a PDCCH/E-PDCCH instruction.
  • step S2031 When the data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum is configured in the manner of step S2031 as shown in FIG. 6, according to the shared data channel available in the period scheduled by the data on the frequency domain s times the bandwidth as the effective length of the data scheduling granularity, and / or, according to the time domain
  • the data scheduling of the effective length is indicated by the scheduling information, and the data scheduling is performed on the terminal, and the corresponding data scheduling result is obtained.
  • the same S can take a value greater than 0 and less than or equal to 1.
  • the scheduling information of the primary cell on the LTE non-shared specific spectrum may be used to indicate that the data scheduling result on the secondary cell on the specific spectrum is shared to the terminal, or may be indicated by the LTE sharing scheduling information of the secondary cell on the specific spectrum. Sharing the data scheduling result on the secondary cell on a specific spectrum to the terminal.
  • Obtaining data scheduling granularity to perform data scheduling on the terminal based on the configuration manner of the data scheduling granularity of the LTE system on the carrier of the specific spectrum in step S2032 as shown in FIG. 6 and indicating the data scheduling result to the terminal may be two Kind:
  • the first type is: indicating, by the scheduling information on the carrier that does not share the specific spectrum, the data scheduling result of the carrier on the shared specific spectrum to the terminal.
  • the second type is as shown in FIG. 8 : indicating, by using the scheduling information on the carrier sharing the specific frequency spectrum, the data scheduling result of the carrier on the shared specific frequency spectrum to the terminal; Some of the resources are used as data scheduling control channels. Since the first wireless communication system (LTE system) and the second wireless communication system (WiFi system) share spectrum resources on a shared specific spectrum, the location of the transmission resource of the scheduling information on the carrier sharing the specific spectrum may not be stable. As shown in Figure 9, during a chirp period of the first wireless communication system, a portion of the resources are occupied by the second wireless communication system (WiFi system). Then, the transmission resource of the data scheduling control channel (PDCCH) on the carrier sharing the specific spectrum of the first wireless communication system is related to the case where the second wireless communication system occupies a specific spectrum.
  • PDCCH data scheduling control channel
  • the data scheduling result in the same format may be used to indicate the data scheduling result to the terminal in the process of indicating the data scheduling result to the terminal.
  • the format of the data scheduling result is that the resource scheduling field using the same scheduling information indicates the data scheduling result.
  • the data scheduling granularity of the LTE system on the specific spectrum is configured in different manners by performing the steps S202, S2031 or S2032, and the data scheduling of the terminal is implemented according to the configured data scheduling granularity, and the corresponding data scheduling result is obtained, and the terminal is obtained.
  • the scheduling of the data scheduling granularity obtained by using different data scheduling granularities, using the same resource tuning indicates the corresponding data scheduling result.
  • the Resource assignment field of the downlink scheduling signaling uses the X bit to indicate the corresponding data scheduling result.
  • Equation (2) represents the granularity of various data scheduling in the uplink scheduling - the resource allocation result of F;
  • is the maximum value of the frequency domain scheduling of the shared data channel available in the data scheduling period, and the source thereof is: the ratio of the shared data channel bandwidth to the frequency domain scheduling granularity.
  • W ⁇ M is the maximum value of the time domain scheduling of the shared data channel available in the scheduling period, and the source thereof is: the ratio of the shared data time domain length to the time domain scheduling granularity;
  • N ⁇ and respectively are the number of PRBs that are downlink or uplink in the LTE system.
  • the existing data scheduling granularity of the LTE system that is, the effective length of each data scheduling in the time domain is the time of the shared data channel available in the scheduling period, and the effective length in the frequency domain is the frequency domain width of one PRB.
  • the 13bit can be as shown in Figure 10: indicating that the data scheduling for one UE starts from any PRB to the end of any PRB.
  • the effective length of each data scheduling in the frequency domain is the S times bandwidth of the shared data channel available in the scheduling period, and the effective length in the time domain is indicated by the scheduling signaling. At this time, the value of S is 1
  • the first 7 bits in 13 bits can be as shown in FIG. 11:
  • the data time domain scheduling for one UE is indicated from the beginning of any one OFDM symbol to the end of any one OFDM symbol.
  • the last 6 bits of the 13 bits are set to be reserved for expansion.
  • the effective length of each data scheduling in the frequency domain is 1/4 of the bandwidth of the shared data channel available in the scheduling period (ie, S is 0.25), and the effective length in the time domain is indicated by the scheduling information.
  • the data sharing channel resources in one scheduling period are numbered as 0 to 55 resources according to the scheduling granularity.
  • the first 12 bits of the 13 bits may indicate that the data time domain scheduling for one UE starts from any one of the scheduling resources to the end of any one of the scheduling resources as shown in FIG.
  • the most in 13bit After lbit is set to reserved bits to be used for expansion.
  • the method further includes: After the data scheduling of the configured data is scheduled by the terminal, when the scheduled data is transmitted, a demodulation reference signal required for demodulating the scheduled data is mapped in each data scheduling granularity of the scheduled data. To achieve the purpose of data transmission between the base station and the terminal. When the demodulation reference signal is mapped, the current data scheduling granularity is used as a mapping condition. Through this step, data communication between the base station and the terminal using the above-configured data scheduling result can be finally completed.
  • the demodulation reference signal is executed according to step S101 shown in FIG. 5, or the data of the first wireless communication system on the specific spectrum configured in step S202, S2031 or step S2032 shown in FIG.
  • the scheduling granularity is used for resource mapping so that the data scheduling resource size can be correctly demodulated when it is the data scheduling granularity.
  • the effective length of each data scheduling in the frequency domain is the bandwidth of the shared data channel available in the scheduling period, and the effective length in the time domain is indicated by the scheduling information.
  • the effective length indicated by the scheduling information is the time domain length of one OFDM symbol.
  • FIG. 13 A resource mapping manner of the demodulation reference signal is shown in FIG. 13 below: the oblique line portion in FIG. 13 is the frequency domain of the shared data channel and the time of one OFDM symbol available for the demodulation reference signal DMRS in the scheduling period. The location of the mapped on the width of the resource. In this way, when the data scheduling result is an OFDM symbol, the data can be correctly demodulated.
  • the data scheduling of the first wireless communication system on the carrier sharing the specific frequency is emphasized.
  • Granularity, and performing data scheduling on the terminal according to the configured data scheduling granularity in the time domain and the frequency domain are shared.
  • spectrum resources according to the more accurate data scheduling granularity in the time domain and in the frequency domain, the transmission opportunities of the LTE system and the WiFi system are more evenly distributed during data transmission, and the utilization of system resources is more sufficient.
  • Embodiment 4 As shown in FIG. 14 , it is a flowchart of a data scheduling method according to an embodiment of the present invention.
  • the data scheduling method is applied to a terminal, and includes the following steps:
  • Step S301 The terminal receives a data scheduling granularity option indicated by the base station, where the data scheduling granularity option includes a data scheduling granularity of the first wireless communication system in the time domain and the frequency domain on the carrier of the configured specific frequency spectrum, where the specific spectrum is Including sharing specific spectrum and non-sharing specific spectrum;
  • step S301 the manner in which the terminal receives the data scheduling result indicated by the base station is the same as that disclosed in the first embodiment and the second embodiment of the present invention.
  • One is: receiving, according to the scheduling information on the non-shared specific spectrum, a data scheduling result of the first wireless communication system on the carrier of the specific spectrum;
  • Another method is: receiving, according to the scheduling information on the shared specific spectrum, a data scheduling result of the first wireless communication system on the carrier of the specific spectrum.
  • Step S302 The terminal receives the data scheduling result indicated by the base station, and performs data transmission on the base station according to a result of demodulating the data scheduling result according to the demodulation reference signal.
  • the demodulation reference signal is used for resource mapping according to the configured data scheduling granularity of the first wireless communication system on the specific frequency spectrum.
  • step S302 the terminal receives the data scheduling result indicated by the base station, and demodulates the data scheduling result according to the demodulation reference signal, and the manner in which the base station performs data transmission is the same as the base station disclosed in the third embodiment of the present invention. And demodulating the data scheduling result according to the demodulation reference signal, and echoing the manner in which the terminal performs the data transmission step.
  • step S301 when receiving the data scheduling result of the first wireless communication system on the carrier of the specific frequency spectrum according to the scheduling information on the shared specific frequency spectrum, the first wireless communication is performed on the shared specific frequency spectrum.
  • the system (LTE system) and the second wireless communication system (WiFi system) share a specific spectrum resource, and the location of the transmission resource sharing the scheduling information on the specific spectrum may not be fixed.
  • the transmission resource of the scheduling information (PDCCH) of the first wireless communication system is related to the case where the second wireless communication system occupies a specific spectrum.
  • the terminal is required to blindly detect scheduling information on multiple OFDMs sharing a carrier of a specific spectrum until the scheduling information (PDCCH) of the first wireless communication system is detected, and then according to the scheduling information on the shared specific spectrum.
  • the specific data spectrum can be reasonably utilized by the data transmission method applied to the base station and the terminal disclosed in Embodiment 1 to Embodiment 4 of the present invention, such as different wireless communication systems for physical resource allocation mode and scheduling resource size.
  • the LTE system and the WiFi system coexist in a specific spectrum, as shown in FIG. 15, in order to utilize the data scheduling method disclosed in Embodiment 1 to Embodiment 4 of the present invention, in a specific spectrum.
  • a structure diagram of a radio frame the horizontal line in FIG. 15 is the data transmission of the LTE system, and the oblique line part is the data transmission of the WiFi system.
  • the device is configured to correspond to the data scheduling method according to the first embodiment of the present invention.
  • the data scheduling device is applied to the base station side, and mainly includes:
  • the configuration unit 101 is configured to configure a data scheduling granularity of the first wireless communication system on the carrier of the specific frequency spectrum on the time domain and the frequency domain, and send the data scheduling granularity to the indication unit 102;
  • the indicating unit 102 is configured to indicate the data scheduling granularity option on part or all of the carriers on the specific frequency spectrum to the terminal UE, and send the data scheduling granularity to the data scheduling unit 103;
  • the data scheduling unit 103 is configured to perform data scheduling on the terminal UE according to the data scheduling granularity indicated in the data scheduling granularity option of the carrier on the specific frequency spectrum configured, and indicate the corresponding data scheduling result to the Terminal UE.
  • the structure of the data scheduling apparatus disclosed in the fifth embodiment of the present invention further includes a first data transmission unit, and the first data transmission unit is connected to the data scheduling unit, and is configured to use each data of the scheduled data that needs to be transmitted.
  • Mapping the demodulation reference signal in the scheduling granularity performing data transmission with the terminal UE according to the result of demodulating the scheduled data according to the demodulation reference signal, where the demodulation reference signal is mapped in the configuration unit
  • the case of the output data scheduling granularity is used as a condition for mapping.
  • the execution principle and the process of the data transmission device disclosed in the fifth embodiment of the present invention are the same as the corresponding portions of the data transmission device disclosed in the third embodiment of the present invention, and details are not described herein.
  • configuration unit 101 may be specifically:
  • a detecting module configured to detect whether a second wireless communication system is applied to a carrier of a specific frequency spectrum, if not, execute the first configuration module, and if yes, execute the second configuration module or the third configuration module.
  • a first configuration module configured to configure, in an existing manner, a data scheduling granularity of carriers on the specific frequency spectrum
  • the configured data scheduling granularity of the carrier on the specific frequency spectrum is an existing scheduling granularity PRB of the LTE system, that is, the effective length of the data scheduling of the first wireless communication system in the time domain is available in the period of the data scheduling.
  • the length of the shared data channel, the effective length of the data scheduling of the first wireless communication system in the frequency domain is the data scheduling granularity of the frequency domain width of one physical resource block.
  • the granularity of the data scheduling may be the default data scheduling granularity in the first wireless communication system.
  • a second configuration module configured to configure data scheduling of carriers on the specific frequency spectrum
  • the effective length of the data scheduling of the first wireless communication system is the time domain length of one OFDM symbol; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is the data scheduling
  • the data scheduling granularity of the S times bandwidth of the shared data channel available during the period, S is a value greater than 0 and less than or equal to 1;
  • a third configuration module configured to configure a data scheduling granularity of the carrier sharing the specific spectrum on the specific frequency spectrum in the time domain and the frequency domain; in the time domain, the effective length of the data scheduling of the first wireless communication system is one OFDM The time domain length of the symbol; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is the S times bandwidth of the shared data channel available in the period of the data scheduling, and S is a value greater than 0 and less than or equal to 1.
  • the data scheduling granularity of the carriers in the time domain and the frequency domain of the non-shared specific frequency spectrum on the specific frequency spectrum is the existing scheduling granularity PRB of the LTE system, that is, the data scheduling of the first wireless communication system in the time domain.
  • the effective length is the duration of the shared data channel available in the data scheduling period; in the frequency domain, the effective length of the data scheduling of the first wireless communication system is the frequency domain width of one PRB, and the granularity of the data scheduling may be The default data scheduling granularity in the first wireless communication system.
  • the indication unit 102 includes: And an obtaining module, configured to obtain, in the data scheduling granularity option, a data scheduling granularity of the first wireless communication system on the carrier of the specific frequency spectrum in the time domain and/or the frequency domain;
  • a first indication module configured to: indicate, by using the scheduling information on the carrier that shares the specific spectrum, the data scheduling granularity on the time domain and/or the frequency domain to the terminal, and send the data scheduling granularity to the Data scheduling unit;
  • the second indication module is configured to indicate, by using the scheduling information of the carrier on the spectrum other than the carrier sharing the specific spectrum, the data scheduling granularity on the time domain and/or the frequency domain to the terminal, and Transmitting the data scheduling granularity to the data scheduling unit.
  • the data scheduling unit 103 also has different indication manners according to the received data scheduling granularity indicated by the indication unit 102.
  • the data scheduling is performed.
  • the unit includes:
  • a first data scheduling module configured to: according to a data length of the first wireless communication system in the time domain, an effective length is a duration of a shared data channel available in the data scheduling period, and the first wireless communication system in the frequency domain
  • the effective length of the data scheduling is the data scheduling granularity of the frequency domain width of one PRB, and the data is scheduled by the terminal, and the corresponding data scheduling result is obtained;
  • a second indication module configured to indicate, according to the scheduling information on the non-shared specific frequency spectrum, the data scheduling result on the shared specific frequency spectrum to the terminal, or to indicate the sharing on a specific spectrum by sharing scheduling information on a specific frequency spectrum Transmitting the data scheduling result to the terminal, and sending the data scheduling result to the first data transmission unit;
  • the scheduling information on the non-shared or shared spectrum is a PDCCH or an E-PDCCH instruction.
  • the data scheduling unit includes:
  • a second data scheduling module configured to use, according to the s times bandwidth of the shared data channel available in the period scheduled by the data in the frequency domain, the data scheduling granularity of the effective length, and/or according to the scheduling information in the time domain
  • the data scheduling granularity indicating the effective length performs data scheduling on the terminal, and acquires a corresponding data scheduling result.
  • a third indication module configured to indicate, by using the scheduling information of the primary cell on the LTE unshared spectrum, the data scheduling result on the secondary cell on the shared spectrum to the terminal, or by using the scheduling information of the secondary cell on the LTE shared spectrum And transmitting, by the data scheduling result on the secondary cell of the shared spectrum to the terminal, and sending the data scheduling result to the first data transmission unit.
  • the scheduling information of the primary cell on the non-shared specific spectrum is a physical downlink control channel command, or an enhanced physical downlink control channel command.
  • the data scheduling unit includes:
  • a third data scheduling module configured to: according to a data scheduling granularity of a carrier sharing a specific spectrum on the specific frequency spectrum in a time domain and a frequency domain, or a carrier of a non-shared specific frequency spectrum in the specific frequency spectrum in a time domain and a frequency
  • the data scheduling granularity on the domain that is, the existing scheduling granularity PRB of the LTE system performs data scheduling on the terminal, and acquires a corresponding data scheduling result.
  • a fourth indication module configured to indicate, by using the scheduling information on the specific spectrum that is not shared, the data scheduling result on the shared specific frequency spectrum to the terminal, or to share the specific specific spectrum by using the scheduling information on the shared specific frequency spectrum
  • the data scheduling result is indicated to the terminal, and the data scheduling result is sent to the first data transmission unit.
  • the unified format module is configured to unify the data scheduling result when the data scheduling of the terminal is performed by indicating different data scheduling granularity of the first wireless communication on the specific frequency spectrum in the data scheduling granularity option.
  • the data scheduling apparatus applied to the base station side based on the above-described fifth embodiment of the present invention can be integrated into a memory including a storage medium in an actual application. From the above description, it will be apparent to those skilled in the art that the present application can be implemented by means of software plus a necessary general hardware platform. Therefore, the present application also provides a base station. As shown in FIG. 17, the base station 600 includes a memory 601 and a processor 603 connected to the memory 601 via a bus 602.
  • the memory 601 stores a program for performing data scheduling on the base station side.
  • the memory may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
  • the processor runs the above program.
  • the above program may include program code, and the program code includes a series of operation instructions arranged in a certain order.
  • the processor may be a central processing unit CPU, or a specific integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the program for performing data scheduling on the base station side may specifically include: Configuring a data scheduling granularity of the first wireless communication system on the carrier of the specific spectrum in the time domain and the frequency domain;
  • the module structure defined or added in each unit performs the principle in the data transmission process, and the execution process is the same as the corresponding part of the data transmission method disclosed in Embodiment 2 of the present invention and Embodiment 3 of the present invention, and can be referred to each other. No more details are given.
  • Embodiment 6 It is intended that the data scheduling device is applied to the terminal side, and mainly includes:
  • the receiving unit 201 is configured to receive a data scheduling granularity option indicated by the base station eNB, where the data scheduling granularity option includes a data scheduling granularity of the first wireless communication system on the carrier of the configured specific frequency spectrum, where the specific frequency spectrum includes sharing a specific frequency spectrum and Non-shared specific spectrum;
  • the second data transmission unit 202 is configured to receive a data scheduling result indicated by the base station eNB, and perform data transmission on the base station eN B according to a result of demodulating the data scheduling result according to the demodulation reference signal;
  • the demodulation reference signal is used for resource mapping according to the configured data scheduling granularity of the first wireless communication system on the specific frequency spectrum.
  • the second data transmission unit 202 can be specifically:
  • a first receiving module configured to receive, according to the scheduling information on the shared specific spectrum, a data scheduling result of the first wireless communication system on the carrier of the specific spectrum;
  • the first receiving module includes a blind detection module, configured to blindly detect a physical downlink control channel on at least one OFDM symbol, and acquire scheduling information on the specific frequency spectrum.
  • the second data transmission unit 202 can also be specifically:
  • a second receiving module configured to receive, according to scheduling information on a carrier on a spectrum other than the shared specific spectrum, a data scheduling result of the first wireless communication system on the carrier of the specific spectrum.
  • the data scheduling apparatus applied to the terminal side disclosed in the above embodiment 6 of the present invention can also be integrated into a memory including a storage medium in practical applications. It will be apparent to those skilled in the art from the above description that the present application can be implemented by means of software plus a necessary general hardware platform. Realized. Therefore, the present application also provides a terminal. As shown in FIG. 19, the terminal 700 includes a memory 701 and a processor 703 connected to the memory 701 via a bus 702.
  • the memory stores a program for data scheduling on the terminal side.
  • the memory may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
  • the processor runs the above program.
  • the above program may include program code, and the program code includes a series of operation instructions arranged in a certain order.
  • the processor may be a central processing unit CPU, or a specific integrated circuit, or one or more integrated circuits configured to implement embodiments of the present invention.
  • the program for performing data scheduling on the terminal side may specifically include:
  • the data scheduling granularity option includes a data scheduling granularity of the first wireless communication system on the carrier of the configured specific frequency spectrum, where the specific frequency spectrum includes a shared specific spectrum and a non-shared specific spectrum;
  • the data transmission method and apparatus disclosed in the embodiments of the present invention configure a data scheduling granularity of a first wireless communication system on a carrier of a specific spectrum by a base station before performing data transmission, and involve sharing a specific spectrum resource in the process of performing data transmission.
  • the data scheduling of the terminal is performed by using the configured data scheduling granularity, and the corresponding data scheduling result is indicated to the terminal by configuring the data scheduling granularity of the wireless communication on the carrier of the specific spectrum, so that the allocation opportunities between the systems when using the specific spectrum resource are more realized. Uniform, make full use of system resources. Further, data transmission between the base station and the terminal is implemented based on the data scheduling result.
  • the steps of the method or algorithm described in connection with the embodiments disclosed herein may be directly in hardware,
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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Abstract

本发明公开了一种数据调度方法和装置,该方法首先配置特定频谱的载波上第一无线通信***的数据调度粒度;其次,将数据调度粒度选项指示给终端;最后,按照所述数据调度粒度选项中指示的数据调度粒度对所述终端进行数据调度,并将对应数据调度结果指示给所述终端通过上述配置特定频谱上的载波上的无线通信的数据调度粒度,从而实现***间在利用特定频谱资源时分配机会更加均匀,更加充分利用***资源的目的。

Description

数据调度方法、 装置、 基站和终端 技术领域
本发明涉及无线通信技术领域, 更具体的说, 是涉及一种数据调度方法、 装置、 基站和终端。
背景技术
频语是无线通信的基石出,从应用的角度出发频谱分为未授权频谱和授权频 谱,根据最新发布的国际频谱***可知, 未授权频谱资源将要大于授权频谱 资源。 目前,未授权频谱上使用的主要技术是无线保真技术(Wireless Fidelity, WiFi ); 授权频谱上则使用为其他无线通信技术, 如长期演进(Long Term Evolution, LTE )技术。
如图 1所示为一个 LTE无线帧的时间内可能在共享的频谱上发生的 LTE ***和 WiFi ***的资源调度情况。 在该时间范围内包括 LTE ***的 10 个 Subframe, 频域宽度为 20MHz, 在进行上下行数据传输时, 在 Subframe#0、 #1的时间内, LTE***占用***资源调度用户数据, 由于 LTE在时域上的调 度粒度 TTI为 1ms,即 LTE在时域上每 lms做一次用户调度。因此,在 Subframe #0、 # 1共 2ms时间内, 由于 LTE对***资源的使用, WiFi***进行***资源 的使用情况侦听的结果将是该时间段内的资源不可用, 直至 LTE ***的调度 用户数据在 Subframe #1结束后, 该频率资源空闲下来方可被 WiFi用户侦听 到该资源可用, 在 Subframe #2的时间范围内, WiFi用户数据被调度, 如图 1 所示, 该调度在 Subframe #3期间结束。 由于 LTE***的调度用户数据是从一 个 Subframe的开始位置起始的, 那么下一次的 LTE***的调度用户数据的机 会只能从 Subframe #4开始, 这样 Subframe #3内将有一部分资源未被用到。
由上述可知, 由于无线通信***间的物理资源分配方式的不同,在进行调 度用户数据传输过程中***调度资源大小也各不相同,在数据传输过程中导致 ***间共享特定频谱资源时出现传输机会分配不均匀,***资源利用不充分的 问题。
发明内容
有鉴于此, 本发明实施例的目的在于提供一种数据调度方法、 装置、基站 和终端 , 以克服现有技术中由于无线通信***间的物理资源分配方式和***调 度资源大小的不同,在数据传输过程中导致***间在共享特定频谱资源时出现 传输机会分配不均匀、 ***资源利用不充分的问题。
为实现上述目的, 本发明实施例提供如下技术方案:
本发明实施例的第一方面提供了一种数据调度方法, 应用于基站, 包括: 配置特定频谱的载波上第一无线通信***在时域上和频域上的数据调度 粒度;
将配置的所述特定频谱上的部分或全部载波上的数据调度粒度选项指示 给终端;
按照配置的所述特定频谱上的载波的数据调度粒度对所述终端进行数据 调度, 并将进行数据调度后获得的数据调度结果指示给所述终端。
在本发明实施例的第一方面的第一种实现方式中, 配置的所述特定频谱 的载波上第一无线通信***在时域上和频域上的数据调度粒度, 包括:
确定是否存在第二无线通信***应用于所述特定频谱的载波上
当不存在时,配置所述特定频谱的载波上所述第一无线通信***在时域和 频域上的数据调度粒度;
在时域上,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的时长;
在频域上,所述第一无线通信***的数据调度的有效长度为一个物理资源 块的频域宽度;
其中, 所述第一无线通信***为长期演进 LTE***。
在本发明实施例的第一方面的第二种实现方式中,配置的所述特定频谱的 载波上第一无线通信***在时域上和频域上的数据调度粒度包括:
确定是否存在第二无线通信***应用于所述特定频谱的载波上; 当存在时, 配置所述特定频谱的载波上在时域和频域上的数据调度粒度; 在时域上,所述第一无线通信***的数据调度的有效长度为一个正交频分 复用 OFDM符号的时域长度;
在频域上 ,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值; 其中, 所述第一无线通信***为 LTE ***, 所述第二无线通信***为无 线保真 WiFi***。
在本发明实施例的第一方面的第三种实现方式中,配置的所述特定频谱的 载波上无线通信***在时域上和频域上的数据调度粒度包括: 确定是否存在第二无线通信***应用于所述特定频谱的载波上; 当存在时,配置所述特定频谱上的共享特定频谱的载波上所述第一无线通 信***在时域和频域上的数据调度粒度;
在时域上, 所述第一无线通信***的数据调度的有效长度为一个 OFDM 符号的时域长度;
在频域上 ,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值; 配置所述特定频谱上的非共享特定频谱的载波上所述第一无线通信*** 在时域和频域上的数据调度粒度;
在时域上,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的时长;
在频域上,所述第一无线通信***的数据调度的有效长度为一个物理资源 块的频域宽度;
其中, 所述第一无线通信***为 LTE ***, 特定频谱上存在的所述第二 无线通信***为 WiFi***。
在本发明实施例第一方面的第四种实现方式中,所述将配置的所述特定频 谱上的部分或全部载波上的数据调度粒度选项指示给终端, 包括:
获取所述数据调度粒度选项中,所述特定频谱上所述第一无线通信***在 时域上和 /或频域上的数据调度粒度;
通过所述共享特定频谱的载波上的调度信息将所述时域上和 /或频域上的 数据调度粒度指示给终端;
或者,通过除所述共享特定频谱的载波之外的其他频谱上的载波的调度信 息将所述时域上和 /或频域上的数据调度粒度指示给终端。
在本发明实施例第一方面的第五种实现方式中,将配置的所述特定频谱上 的部分或全部载波上的数据调度粒度选项指示给终端, 包括: 上所述第一无线通信***在时域上和频域上的数据调度粒度时,通过所述共享 特定频谱的载波上的调度信息,或除所述共享特定频谱的载波之外的其他频谱 上的载波的调度信息将所述数据调度粒度指示给终端;
其中,不向所述终端发送指示的条件为所述数据调度粒度选项中是所述特 定频谱上的非共享特定频谱的载波上所述第一无线通信***在时域和频域上 的数据调度粒度。
在本发明实施例第一方面的第六种实现方式中,按照配置的所述特定频谱 上的载波的数据调度粒度对所述终端进行数据调度, 包括:
依据所述时域上的有效长度是所述数据调度的周期内可用的共享数据信 道的时长的数据调度粒度;
和 /或, 依据在频域上一个资源块的频域宽度的调度粒度对所述终端进行 数据调度, 并获取对应的数据调度结果。
在本发明实施例第一方面的第七种实现方式中,按照配置的所述特定频谱 上的载波的数据调度粒度对所述终端进行数据调度, 包括:
依据所述频域上的有效长度是所述数据调度的周期内可用的共享数据信 道的 S倍带宽的数据调度粒度;
和 /或, 依据在时域上有效长度为一个 OFDM符号的时域长度的数据调度 粒度对所述终端进行数据调度, 并获取对应的数据调度结果。
在本发明实施例第一方面的第八种实现方式中,按照配置的所述特定频谱 上的载波的数据调度粒度对所述终端进行数据调度, 包括:
在所述特定频谱上的非共享特定频谱上依据所述时域上的有效长度是所 述数据调度的周期内可用的共享数据信道的时长的数据调度粒度;
和 /或, 依据在频域上一个资源块的频域宽度的调度粒度对所述终端进行 数据调度, 并获取对应的数据调度结果。
在所述特定频谱上的非共享特定频谱上,依据所述频域上的有效长度是所 述数据调度的周期内可用的共享数据信道的 S倍带宽的数据调度粒度;
和 /或, 依据在时域上有效长度为一个 OFDM符号的时域长度的数据调度 粒度对所述终端进行数据调度, 并获取对应的数据调度结果。
在本发明实施例第一方面的第九种实现方式中,所述将对应数据调度结果 指示给所述终端, 包括:
依据所述非共享特定频谱上的调度信息将所述共享特定频谱上的所述数 据调度结果指示至所述终端;
或者,依据所述共享特定频谱上的调度信息将所述共享特定频谱上的所述 数据调度结果指示至所述终端。
在本发明实施例第一方面的第十种实现方式中,所述将对应数据调度结果 指示给所述终端, 还包括: 当所述配置的特定频谱上的各个载波的数据调度粒度不同时,指示给所述 终端的所述数据调度结果采用相同的调度信息的资源调度字段表示。
在本发明实施例第一方面的第十一种实现方式中,在将对应数据调度结果 指示给所述终端之后, 还包括:
按照所述配置的数据调度粒度对所述终端进行数据调度;
获取所调度的数据,在所述调度的数据的每个数据调度粒度中映射解调所 调度的数据所需的解调参考信号;
依据解调结果与所述终端进行数据传输;
其中,所述解调参考信号按照配置的所述特定频谱的载波上第一无线通信 ***的数据调度粒度做资源映射。
本发明实施例的第二方面提供了一种数据调度方法, 应用于终端, 包括: 接收基站指示的特定频谱上的部分或全部载波上的数据调度粒度选项,所 述数据调度粒度选项中包括配置的特定频谱的载波上第一无线通信***在时 域上和频域上的数据调度粒度;
接收基站指示的数据调度结果,依据解调参考信号对所述数据调度结果进 行解调的结果与所述基站进行数据传输;
其中,所述解调参考信号按照配置的所述特定频谱的载波上第一无线通信 ***的数据调度粒度做资源映射。
本发明实施例的第二方面的第一种实现方式中,接收基站指示的数据调度 结果, 包括:
依据所述共享特定频谱的载波上的调度信息接收所述特定频谱上第一无 线通信***的数据调度结果;
或者,依据除所述共享特定频谱的载波之外的其他频谱上的载波的调度信 息接收所述特定频谱上所述第一无线通信***的数据调度结果。
本发明实施例的第二方面的第二种实现方式中 ,依据所述共享特定频谱的 载波上的调度信息接收所述特定频谱上第一无线通信***的数据调度结果,包 括:
盲检至少一个 OFDM符号的物理下行控制信道, 获取所述特定频谱上的 调度信息;
依据所述共享特定频谱的载波上的调度信息接收所述特定频谱上所述第 一无线通信***的数据调度结果。 本发明实施例的第三方面提供了一种数据调度装置,应用于基站侧,包括: 配置单元,用于配置特定频谱的载波上第一无线通信***在时域上和频域 上的数据调度粒度, 并将所述数据调度粒度发送至指示单元;
所述指示单元,用于将所述特定频谱上部分或全部载波上的所述数据调度 粒度选项指示给终端, 及将所述数据调度粒度发送至数据调度单元;
所述数据调度单元,用于按照所述数据调度粒度选项中指示的数据调度粒 度对所述终端进行数据调度, 并将对应数据调度结果指示给所述终端。
本发明实施例的第三方面的第一种实现方式中, 还包括:
所述第一数据传输单元,用于接收配置单元发送的所述数据调度粒度和所 述数据调度单元发送的所述数据调度结果,获取所调度的数据的每个数据调度 粒度中映射解调参考信号,依据所述解调参考信号对所调度的数据进行解调的 结果与所述终端进行数据传输, 其中, 所述解调参考信号按照所述配置单元中 输出的数据调度粒度做资源映射。
本发明实施例的第三方面的第二种实现方式中, 所述配置单元包括: 检测模块, 用于检测是否存在第二无线通信***应用于特定频谱的载波 上, 当不存在时, 执行第一配置模块;
所述第一配置模块, 用于配置在时域上, 所述第一无线通信***的有效长 度是所述数据调度的周期内可用的共享数据信道的时长, 频域上, 所述第一无 线通信***的有效长度是一个资源块的频域宽度的数据调度粒度。
本发明实施例的第三方面的第三种实现方式中, 所述配置单元包括: 检测模块, 用于检测是否存在第二无线通信***应用于特定频谱的载波 上, 当存在时, 执行第二配置模块或第三配置模块;
所述第二配置模块, 用于配置在时域上, 所述第一无线通信***的数据调 度的有效长度为一个正交频分复用 OFDM符号的时域长度; 在频域上, 所述 第一无线通信***的数据调度有效长度是所述数据调度的周期内可用的共享 数据信道的 S倍带宽的数据调度粒度, S为大于 0小于等于 1的数值;
所述第三配置模块,用于配置所述特定频谱上的共享特定频谱的载波在所 述第一无线通信***在时域和频域上的数据调度粒度; 在时域上, 所述第一无 线通信***的数据调度的有效长度为一个 OFDM符号的时域长度;在频域上, 所述第一无线通信***的数据调度的有效长度是所述数据调度的周期内可用 的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值。 本发明实施例的第三方面的第四种实现方式中, 所述指示单元包括: 获取模块, 用于获取所述数据调度粒度选项中, 所述特定频谱的载波上所 述第一无线通信***在时域上和 /或频域上的数据调度粒度;
第一指示模块,用于通过所述共享特定频谱的载波上的调度信息将所述时 域上和 /或频域上的数据调度粒度指示给终端, 及将所述数据调度粒度发送至 所述数据调度单元;
或, 第二指示模块, 用于通过除所述共享特定频谱的载波之外的其他频谱 上的载波的调度信息将所述时域上和 /或频域上的数据调度粒度指示给终端, 及将所述数据调度粒度发送至所述数据调度单元。
本发明实施例的第三方面的第五种实现方式中, 所述数据调度单元包括: 第一数据调度模块,用于依据所述在时域上所述第一无线通信***的数据 调度的有效长度是所述数据调度的周期内可用的共享数据信道的时长,在所述 频域上所述第一无线通信***的数据调度的有效长度为一个资源块 PRB的频 域宽度的数据调度粒度对所述终端进行数据调度, 并获取对应的数据调度结 果;
第二指示模块,用于依据非共享特定频谱上的调度信息指示所述特定频谱 中的共享特定频谱上的所述数据调度结果至所述终端,或者通过共享特定频谱 上的调度信息指示所述共享特定频谱上的所述数据调度结果至所述终端,及将 所述数据调度结果发送至所述第一数据传输单元;
其中, 所述非共享或共享特定频谱上的调度信息为物理下行控制信道
PDCCH/增强型物理下行控制信道 E- PDCCH指令。
本发明实施例的第三方面的第六种实现方式中,当采用所述第二配置模块 进行配置时, 所述数据调度单元包括:
第二数据调度模块,用于依据所述频域上由所述数据调度的周期内可用的 共享数据信道的 S倍带宽作为有效长度的数据调度粒度, 和 /或, 依据时域上 由调度信息指示有效长度的数据调度粒度对所述终端进行数据调度,并获取对 应的数据调度结果;
第三指示模块, 用于通过 LTE非共享频谱上 Primary cell的调度信息指示 所述共享频谱上 Secondary cell上的所述数据调度结果至所述终端, 或者通过 LTE共享频谱上 Secondary cell的调度信息指示所述共享频谱上 Secondary cell 上的所述数据调度结果至所述终端,及将所述数据调度结果发送至所述第一数 据传输单元。
本发明实施例的第三方面的第七种实现方式中,当采用第三配置模块进行 配置时, 所述数据调度单元包括:
第三数据调度模块,用于依据所述特定频谱上的共享特定频谱的载波在时 域和频域上的数据调度粒度,或所述特定频谱上的非共享特定频谱的载波在时 域和频域上的数据调度粒度,对所述终端进行数据调度, 并获取对应的数据调 度结果;
第四指示模块,用于通过非共享特定频谱上的调度信息将所述共享特定频 谱上的数据调度结果指示给所述终端 ,或者通过所述共享特定频谱上的调度信 息将所述共享特定频谱上的数据调度结果指示给所述终端,及将所述数据调度 结果发送至所述第一数据传输单元。
本发明实施例的第三方面的第八种实现方式中, 所述数据调度单元还包 括:
统一格式模块,用于当所述数据调度粒度选项中指示所述特定频谱上的所 述第一无线通信的不同数据调度粒度对所述终端进行数据调度时,将数据调度 结果采用相同的调度信息的资源调度字段表示。
本发明实施例的第四方面提供了一种基站, 包括:
具有存储介质的存储器, 所述存储器中存储有基站侧进行数据调度的程 序;
通过总线与所述存储器连接的处理器,所述处理器通过上述本发明实施例 提供的数据调度的方法执行所述程序。
本发明实施例的第五方面提供了一种数据调度装置,应用于无线通信*** 的终端, 包括:
接收单元, 用于接收基站指示的数据调度粒度选项, 所述数据调度粒度选 项中包括配置的特定频谱的载波上第一无线通信***的数据调度粒度,所述特 定频谱包括共享特定频谱和非共享特定频谱;
第二数据传输单元, 用于接收基站指示的数据调度结果,依据解调参考信 号对所述数据调度结果进行解调的结果与所述基站进行数据传输; 其中, 所述 解调参考信号按照配置的所述特定频谱上所述第一无线通信***的数据调度 粒度做资源映射。
本发明实施例的第五方面的第一种是实现方式中, 第二数据传输单元包 括:
第一接收模块,用于依据所述共享特定频谱上的调度信息接收所述特定频 谱的载波上所述第一无线通信***的数据调度结果;
或者, 第二接收模块, 用于依据除所述共享特定频语之外的其他频谱上的 载波上的调度信息接收所述特定频谱的载波上所述第一无线通信***的数据 调度结果。
本发明实施例的第五方面的第二种是实现方式中, 所述第一接收模块包 括:
盲检模块, 用于盲检至少一个 OFDM符号的物理下行控制信道, 获取所 述特定频谱上的调度信息。
本发明实施例的第六方面提供了一种终端, 其特征在于, 包括: 具有存储介质的存储器, 所述存储器中存储有终端侧进行数据调度的程 序;
通过总线与所述存储器连接的处理器,所述处理器通过上述本发明实施例 所提供的数据调度的方法执行所述程序。
经由上述的技术方案可知, 与现有技术相比, 本发明实施例公开了一种数 据调度方法、 装置、基站和终端。 该方法通过配置各特定频谱的载波上的无线 通信***的数据调度粒度,在与其他无线通信***共享特定频谱时, 利用配置 后的特定频谱上的载波的数据调度粒度对终端进行数据调度,并将对应特定频 谱上的载波的数据调度结果指示给终端。通过配置各特定频谱上的载波上的无 线通信的数据调度粒度,使***间在利用特定频谱上的载波资源时实现分配机 会更加均匀, 更加充分利用***资源的目的。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创 造性劳动的前提下, 还可以根据提供的附图获得其他的附图。
图 1为 LTE***和 WiFi***在共享特定频谱上进行数据传输时频谱利用 的示意图;
图 2为 LTE*** PRB的定义图;
图 3为 LTE***在授权频谱上执行数据调度后频谱的利用情况示意图; 图 4为 WiFi***在非授权频谱上执行数据调度后频谱的利用情况示意图; 图 5为本发明实施例一公开的一种数据调度方法的流程图;
图 6为本发明实施例二公开的一种数据调度方法的流程图;
图 7 为本发明实施例三公开的一种对终端的数据调度结果指示方式的示 意图;
图 8 为本发明实施例三公开的另一种对终端的数据调度结果指示方式的 示意图;
图 9 为本发明实施例三公开的另一种对终端的数据调度结果指示后在本 无线通信***的一个 ΤΉ调度周期内资源占用的示意图;
图 10为本发明实施例三公开的基于一种数据调度粒度对终端进行数据调 度的示意图;
图 11为本发明实施例三公开的基于另一种数据调度粒度对终端进行数据 调度的示意图;
图 12为本发明实施例三公开的基于另一种数据调度粒度对终端进行数据 调度的示意图;
图 13为本发明实施例三公开的一种解调参考信号的一种资源映射方式; 图 14为本发明实施例四公开的一种数据调度方法的流程图; 图 15为本发明实施例四公开的 LTE***和 WiFi***共享特定频"普资源 后一个无线帧的结构示意图;
图 16为本发明实施例五公开的一种数据调度装置的结构示意图; 图 17为本发明实施例五公开的一种基站的结构示意图;
图 18为本发明实施例六公开的一种数据调度装置的结构示意图; 图 19为本发明实施例六公开的一种终端的结构示意图。
具体实施方式
为了引用和清楚起见, 下文中使用的技术名词的说明、 简写或缩写总结如 下:
UE: User Equipment, 用户设备; WiFi: Wireless Fidelity, 无线保真; eNB: evolved Node B, 演进型基站;
OFDM: Orthogonal Frequency Division Multiplexing , 正交频分复用;
Subframe: 子中贞; LTE: Long Term Evolution, 长期演进; PRB: Physical Resource Block, 资源块;
PDSCH: Physical Downlink/Uplink Shared Channel , 物理下行 /上行共享 信道;
PDCCH: Physical Downlink Control Channel, 物理下行控制信道;
E- PDCCH: 增强型物理下行控制信道; TTI: 调度粒度;
Primary cell: 主小区; Secondary cell: 辅小区。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
在现有技术中, LTE ***进行数据传输时, 将上行 /下行时频域物理资源 组成资源块(PRB ), 作为物理资源单位进行调度与分配。 如图 2所示, 一个 PRB在频域上包含 12个连续的子载波(一个 PRB内的子载波个数记为 N ), 在时域上包含 7个连续的正交频分复用 ( OFDM )符号(在 Extended CP情况 下为 6个)。 即一个 PRB的频域宽度 Δ /为 180kHz, 时域长度为 0.5ms。 图 2 中的 R0指天线 0的导频符号; R1为天线 1的导频符号; R2为天线 2的导频 符号; R4为天线 3的导频符号。
在 LTERel-8 / 9 / 10通信***的下行传输中, 演进型基站 ( eNB )根据调 度的结果, 将向每个调度到的用户设备 ( UE )发送一个物理下行 /上行共享信 道 ( PDSCH/PUSCH ),以及其对应的物理下行控制信道 ( PDCCH ),且 PDCCH 和 PDSCH时分复用在一个子帧 (Subframe ) 中。 因此, 在 LTE ***中, 对 UE的一次调度时域上为 1ms,频域上通常为" * ("≤ N 和 分别为下行或上行的 PRB数目。 图 3所示出的斜线部分为 LTE***在授权频 谱上执行数据调度后频谱的利用情况示意图。
WiFi***在进行数据传输时, 通过 RTS/CTS协议为用户调度上下行数据 的传输资源。 WiFi使用 OFDM调制方式, 一个 OFDM符号的长度是 4微秒。 经过侦听***资源的使用情况, 对一个 UE来说, 如图 4所示, 一次数据传输 过程占用的频域资源为 w 即整个频谱资源的带宽(图 4中示出为 20MHz ), 时域资源为" ^^Μ , 其中, 为一个 OFDM符号的时间长度, "的大小取 决于待传输数据包大小和用户的信道情况等。
由背景技术可知, 基于上述 LTE***和 WiFi***数据传输过程中的对数 据的不同处理方式, LTE***和 WiFi***, 在数据传输的过程中导致***间 在共享特定频谱上的载波资源时出现传输机会分配不均匀、***资源利用不充 分的问题, 根据该需求, 本发明实施例公开了一种数据调度方法、 装置、 基站 和终端。 具体内容通过以下实施例进行详细说明。
本发明实施例的核心思想为: 在基站侧, 在进行数据传输前, 通过配置特 定频谱的载波上的第一无线通信***的数据调度粒度,在进行数据传输的过程 中, 利用配置的特定频谱上的载波的数据调度粒度对终端进行数据调度, 并将 数据调度结果指示给终端。在终端侧, 获取基站配置的特定频谱的载波上的第 一无线通信***的数据调度粒度及基站的数据调度消息,按照数据调度粒度和 数据调度消息获取数据调度结果。 具体通过以下实施例进行详细说明。
实施例一
如图 5所示, 为本发明实施例公开的一种数据调度方法的流程图, 该数据 调度方法应用于基站上, 主要包括以下步骤:
步骤 S101 , 基站配置特定频谱的载波上第一无线通信***在时域上和频 域上的数据调度粒度。
在步骤 S101中, 基站具体配置的是在位于特定频谱的载波上的第一无线 通信***在时域上和频域上的数据调度粒度。具体来说, 该特定频谱的载波包 括共享特定频谱上的载波和非共享特定频谱上的载波;共享特定频谱对应的是 多个载波中允许不同的无线通信***之间共享的载波,非共享特定频谱对应的 是多个载波中只允许特定无线通信***通信的载波。
在配置的过程中,在特定频谱中的共享特定频谱的载波上,针对当前第一 无线通信***对共享特定频谱上的载波的数据调度粒度从时域上和频域上分 别进行配置,使时域上和频域上的共享特定频谱上的载波的数据调度粒度和共 享该频谱资源的第二无线通信***的数据调度粒度更加接近,使得第一无线通 信***和第二无线通信***在共享特定频谱上资源共享更加充分和合理。在特 定频谱中的非共享特定频谱的载波上,基站可以采用默认配置的方式,也可以 采用共享特定频谱资源时的分配方式配置特定频谱的载波上的第一无线通信 ***的数据调度粒度。
步骤 S102, 基站将特定频谱上的部分或全部载波上的数据调度粒度选项 指示给终端;
在步骤 S102中, 所述数据调度粒度选项包括在特定频谱上的部分或全部 载波上经过配置的第一无线通信***在时域上和频域上的数据调度粒度。执行 步骤 S102时, 该数据调度粒度选项将特定频谱上部分或全部载波上在频域上 和 /或时域上的数据调度粒度指示给终端。
通过该步骤 S102中的指示,终端可确认步骤 S101中是以哪种方式对特定 频谱上的载波上的第一无线通信***的数据调度粒度进行配置的。
步骤 S103 , 基站按照配置的特定频谱上的载波的所述数据调度粒度对所 述终端进行数据调度,并将进行数据调度后获得的数据调度结果指示给所述终 端。
在步骤 S103 ,基站按照步骤 S101中配置的特定频谱上的载波的数据调度 粒度类型对终端进行数据调度并获取到相应的数据调度结果。也就是说,对步 骤 S101中采用默认的数据调度粒度配置方式的载波, 基站按照现有的方式在 这些载波上对终端进行数据调度; 对步骤 S101中采用与其他***共享特定频 谱资源时的数据调度粒度配置方式的载波,基站则按照配置后的新的数据调度 粒度在这些载波上对终端进行数据调度。
本发明实施例通过对特定频谱的载波上的第一无线通信***的数据调度 粒度进行配置 ,使特定频谱的载波上的时域和频域上的数据调度粒度与存在共 存的第二无线通信***的数据调度粒度更加接近,并利用配置后的特定频谱上 的载波的数据调度粒度对终端进行数据调度,最后将对应数据调度结果指示给 终端,基于上述配置方式使特定频谱上的***间在利用特定频谱资源时, 实现 分配机会更加均匀, 更加充分利用***资源目的。
实施例二
针对上述本发明实施例一种公开的数据调度方法,在执行如图 1示出的步 骤 S101的过程中, 配置特定频谱的载波上的第一无线通信***的数据调度粒 度时,即配置特定频语的载波上的第一无线通信***在时域上和频域上的数据 调度粒度时, 可以根据特定频谱的载波上所存在的第一无线通信***的情况 , 采用两种方式进行配置,从而得到采用两种不同方式进行配置后的数据调度粒 度。
第一种方式为: 不存在第二无线通信***应用于特定频谱的载波上, 这种 情况下确定特定频谱的所有载波都使用第一无线通信***默认的数据调度粒 度。
第二种方式为: 存在第二无线通信***应用于特定频谱的载波上时,有两 种情况:第一种情况是确定在所有的特定频谱的载波上都配置相同的且和第一 无线通信***默认配置不同的数据调度粒度;第二种情况是确定特定频谱中的 共享特定频谱的载波上的数据调度粒度,该数据调度粒度不同于第一无线通信 ***默认的数据调度粒度,而在特定频谱中的非共享特定频谱的载波上使用默 认配置方式, 即使用第一无线通信***默认的调度粒度。在本发明该实施例二 中结合采用两种方式进行配置后的数据调度粒度进行说明。
第一种,在特定频谱的载波上配置第一无线通信***在时域上和频域上的 数据调度粒度时, 当特定频谱的载波只有非共享特定频谱的载波, 且仅存在 LTE***, 而不存在第二无线通信***时, 所采用的配置方式为:
针对当前 LTE***(该 LTE***为第一无线通信*** ) 的数据调度, 该
LTE的数据调度粒度为 LTE现有的调度粒度 PRB。 即在时域上, 该 LTE的数 据调度粒度的有效长度是所述数据调度的周期内可用的共享数据信道的时长; 在频域上, 该 LTE的数据调度粒度的有效长度为一个 PRB的频域宽度。
上述配置可以为特定频谱上的默认的数据调度粒度。
第二种,在特定频谱的载波上配置第一无线通信***在时域上和频域上的 数据调度粒度时, 当特定频谱中的共享特定频谱的载波上同时存在 LTE *** 和 WiFi***(该 WiFi***为第二无线通信***)时, 所采用的配置方式有两 种情况:
第一种情况: 针对当前 LTE***的数据调度, 在时域上, 该 LTE***的 数据调度粒度为一个 OFDM符号的时域长度; 在频域上, 该 LTE***的数据 调度粒度的有效长度是所述数据调度的周期内可用的共享数据信道的 S 倍带 宽, S的取值为大于 0小于等于 1的数值。
需要说明的是, 上述在频域上的 LTE ***的数据调度粒度的有效长度通 常取 1倍的所述数据调度的周期内可用的共享数据信道的带宽。
当 S的取值为大于 0小于等于 1之间的数值时,将该数据调度的周期内可 用的共享数据信道的带宽按照数据调度粒度划分为 1/S份,将其中一份的共享 数据信道的带宽作为该数据调度粒度在频域上的有效长度, 另, 在划分 1/S份 时使每一份中的资源为整数或者约等于整数。
第二种情况:
在特定频谱中的共享特定频谱的载波上, 针对 LTE ***的数据调度, 在 时域上, 该 LTE***的数据调度粒度为一个 OFDM符号的时域长度; 在频域 上, 该 LTE ***的数据调度粒度的有效长度是所述数据调度的周期内可用的 共享数据信道的 S倍带宽, S的取值为大于 0小于等于 1的数值。
需要说明的是, 上述在频域上的 LTE ***的数据调度粒度的有效长度通 常取 1倍的所述数据调度的周期内可用的共享数据信道的带宽。
当 S的取值为大于 0小于等于 1之间的数值时,将该数据调度的周期内可 用的共享数据信道的带宽按照数据调度粒度划分为 1/S份,将其中一份的共享 数据信道的带宽作为该数据调度粒度在频域上的有效长度, 另, 在划分 1/S份 时使每一份中的资源为整数或者约等于整数。
在特定频谱中的非共享特定频谱的载波上, 针对每次 LTE ***的数据调 度,该 LTE的数据调度粒度为 LTE现有的调度粒度 PRB。即在时域上,该 LTE 的数据调度粒度的有效长度是所述数据调度的周期内可用的共享数据信道的 时长;在频域上,该 LTE的数据调度粒度的有效长度为一个 PRB的频域宽度。 该配置可以为特定频谱上的默认的数据调度粒度。 步骤 S102中, 基站将特定 频谱上的部分或全部载波上的数据调度粒度选项指示给终端。
具体地, 当采用第一种方式时,特定频谱的所有载波都使用默认的数据调 度粒度。可以不需要指示, 终端在没有收到特定频谱上的载波的数据调度粒度 配置指示时即使用默认的数据调度粒度;
当采用第二种方式时,对第一种情况, 由于在所有的特定频谱所在的载波 上都配置了相同的且和默认配置不同的数据调度粒度,需要基站将特定频谱上 的全部载波上的数据调度粒度选项指示给终端; 对第二种情况, 由于在特定频 谱上的非共享特定频谱的载波上使用了默认配置, 此时则不需要进行指示, 终 端没有特定频谱上的非共享特定频谱的载波上的数据调度粒度配置指示时,即 在特定频谱上的非共享特定频谱的载波上使用默认的数据调度粒度,只需要将 特定频谱上的共享特定频谱所在的部分载波上的数据调度粒度选项指示给终 端。
通过上述配置即可获取到特定频谱的载波上 LTE ***在时域上和频域上 的数据调度粒度, 经由上述配置的 LTE***的数据调度粒度, 其与 WiFi*** 在共享特定频谱的载波上的数据调度粒度尽量接近, 使得 LTE***和 WiFi系 统之间共享特定频谱资源上的共享更加充分合理。
基于上述两种不同的分配方式, 可获得至少三种类型的数据调度粒度, 即 第一种, PRB的数据调度粒度; 第二种数据调度粒度为时域上占一个 OFDM 符号, 频域上占整个带宽; 第三种数据调度粒度为时域上占一个 OFDM符号, 频域上占 S倍的带宽。通过 S的取值不同,可以获得更多不同的数据调度粒度。 基站可对上述至少三种类型的数据调度粒度进行编号 ,在后续通知终端时仅发 送编号即可。
如图 6所示, 为本发明实施例二公开的一种数据调度方法的流程图, 主要 包括以下步骤:
步骤 S201 , 基站确定是否存在第二无线通信***应用于特定频谱的载波 上, 如果否, 则执行步骤 S202; 如果是, 则执行步骤 S2031或步骤 S2032; 在步骤 S201中,基站当前要进行数据调度的第一无线通信***为 LTE系 统。
步骤 S202, 采用现有的方式配置所述特定频谱上的载波的数据调度粒度; 所配置的所述特定频谱上的载波的数据调度粒度是 LTE ***现有的调度 粒度 PRB, 即在时域上, 第一无线通信***的数据调度的有效长度是所述数 据调度的周期内可用的共享数据信道的时长; 在频域上, 第一无线通信***的 数据调度的有效长度为一个物理资源块的频域宽度;该数据调度的粒度可以为 该第一无线通信***中默认的数据调度粒度。
在步骤 S202中, 当前由基站进行数据调度的第一无线通信***为 LTE系 统。
步骤 S2031 , 配置所述特定频谱上的载波的数据调度粒度;
具体配置为,在时域上, 第一无线通信***的数据调度的有效长度为一个
OFDM符号的时域长度; 在频域上, 第一无线通信***的数据调度的有效长 度是所述数据调度的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于 等于 1的数值;
其中, 当前的第一无线通信***为 LTE ***, 特定频谱上存在的第二无 线通信***为 WiFi***。
步骤 S2032, 配置所述特定频谱上的共享特定频谱的载波在时域和频域上 的数据调度粒度; 在时域上, 第一无线通信***的数据调度的有效长度为一个 OFDM符号的时域长度; 在频域上, 第一无线通信***的数据调度的有效长 度是所述数据调度的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于 等于 1的数值。
配置所述特定频谱上的非共享特定频谱的载波在时域和频域上的数据调 度粒度为 LTE***现有的调度粒度 PRB, 即在时域上, 第一无线通信***的 数据调度的有效长度是所述数据调度的周期内可用的共享数据信道的时长;在 频域上, 第一无线通信***的数据调度的有效长度为一个 PRB的频域宽度, 该数据调度的粒度可以为该第一无线通信***中默认的数据调度粒度。
其中, 当前的第一无线通信***为 LTE ***, 特定频谱的载波上存在的 第二无线通信***为 WiFi***。
通过上述配置使该 LTE***的数据调度粒度尽量接近 WiFi***的数据调 度粒度, 使得 LTE ***应用在共享特定频谱上时, 不仅可以有效利用共享特 定频谱资源,还可以提供更为有效的无线接入、 满足日益增长移动宽带服务需 求。
步骤 S204, 将配置的所述特定频谱上的部分或全部载波上的数据调度粒 度选项指示给终端;
在步骤 S204中, 当上述采用的是步骤 S202的数据调度粒度的配置方式, 此时, 所述特定频谱上的部分或全部载波上的数据调度粒度选项中包括: 经由 步骤 S202配置后的 LTE***在时域上和 /或频域上的数据调度粒度。如果该第 一无线通信***中采用的该数据调度粒度为默认的时域上和 /或频域上的数据 调度粒度, 则可以不需要通过信令向终端指示该数据调度粒度。
当上述采用的是步骤 S2031的数据调度粒度的配置方式,此时,所述特定 频谱上的载波上的数据调度粒度选项中包括: 经由步骤 S2031 配置后的 LTE ***在时域上和 /或频域上的数据调度粒度。
当上述采用的是步骤 S2032的数据调度粒度的配置方式时,所述特定频谱 上数据调度粒度在共享特定频谱的载波上和非共享特定频谱的载波上不同。如 果该第一无线通信***中所采用的所述非共享特定频谱的载波上的数据调度 粒度为默认的数据调度粒度,则可以不需要通过信令向终端指示该非共享特定 频谱的载波上的数据调度粒度。 在上述数据调度粒度选项中, 经由步骤 S202、 S2031或步骤 S2032配置后的数据调度粒度均可以体现为一个对应的编号,该 编号由基站进行预先设定。 在后续基站通知终端时仅发送编号即可。 如, 预先 设定上述第一种的 PRB的数据调度粒度的编号为 1 , 第二种数据调度粒度的 编号为 2, 第三种数据调度粒度的编号为 3。 在执行上述步骤 S202、 S2031或 步骤 S2032的过程中,根据其获取到的不同类型的数据调度粒度, 由基站对应 按照预设设定分配编号。 也就是说, 通过该步骤 S204中指示, 终端可通过指示的数据调度粒度选 项中的具体内容或者编号和 /或默认的数据调度粒度确认基站是以哪种方式对 特定频谱的载波上的第一无线通信***的数据调度粒度进行配置的。
步骤 S205, 基站按照特定频谱的载波上配置的所述数据调度粒度对所述 终端进行数据调度, 并将对应数据调度结果指示给所述终端。
在步骤 S205中,基站按照步骤 S201中配置的数据调度粒度类型对终端进 行数据调度。 也就是说, 当采用步骤 S202中的数据调度粒度配置方式, 则基 站按照现有的方式对终端进行数据调度; 当采用步骤 S2031中与 WiFi***共 同分享频谱资源时的配置方式配置特定频谱上 LTE ***的数据调度粒度时, 则基站则按照配置后的接近 WiFi***的数据调度粒度对终端进行数据调度。 当采用步骤 S2032中与 WiFi***共同分享特定频谱资源时的配置方式配置共 享的特定频谱上 LTE ***的数据调度粒度时, 则基站在共享特定频谱上则按 照配置后的接近 WiFi***的数据调度粒度对终端进行数据调度, 在非共享特 定频谱上则按照现有的方式对终端进行数据调度。
本发明实施例二通过对特定频谱的载波上 LTE ***的数据调度粒度进行 配置, 使其时域上和频域上的数据调度粒度在存在共存的 WiFi***时与 WiFi ***的数据调度粒度更加接近,并利用配置后的数据调度粒度对终端进行数据 调度, 最后将对应数据调度结果指示给终端,基于上述配置方式使特定频谱上 的 LTE***和 WiFi***之间在利用特定频 "普资源时,实现分配机会更加均匀, 更加充分利用***资源目的。
需要说明的是, 在执行步骤 S201确定特定频谱上仅存在 LTE***时, 也 可以执行步骤 S2031或步骤 S2032,采用步骤 S2031或步骤 S2032的配置方式 对 LTE***的数据调度粒度进行配置, 并非一定按照步骤 S202中的配置方式 对 LTE ***的数据调度粒度进行配置, 上述所给出的是本发明较为优选的实 施例。
实施例三
基于上述本发明实施例一和本发明实施例二中公开的一种数据调度方法: 在执行如图 5所示出的步骤 S102和如图 6所示出的步骤 S204,基站将特 定频谱的载波上的数据调度粒度选项指示给终端的过程中 ,在获取所述数据调 度粒度选项中, 所述特定频谱的载波上第一无线通信***在时域上和 /或频域 上的数据调度粒度后, 可以采用两种方式进行指示。 第一种方式为:通过所述共享特定频谱的载波上的调度信息将所述时域上 和 /或频域上的数据调度粒度指示给终端。
第二种方式为:通过除所述共享特定频谱的载波之外的其他频谱上的载波 的调度信息将所述时域上和 /或频域上的数据调度粒度指示给终端。
上述两种指示方式对所指示的数据调度粒度是经过哪一种方式配置后生 成的没有限制。
基于上述本发明实施例一和本发明实施例二中公开的一种数据调度方法: 在执行如图 5所示的步骤 S103和如图 6所示出的步骤 S205 ,在对终端进 行数据调度的过程中,基站按照数据调度粒度选项中指示配置后的特定频谱的 载波上的数据调度粒度对终端进行数据调度,并将对应数据调度结果指示给所 述终端。
在图 5示出的步骤 S103和图 6示出的步骤 S205中,对终端进行数据调度 存在至少两种方式, 对应的将数据调度结果指示给终端的方式也存在至少两 种。
依据在本发明实施例二中示出的优选的两个不同方式对特定频谱的载波 上第一无线通信***的数据调度粒度进行配置,且利用配置后的特定频谱的载 波上的数据调度粒度对终端进行数据调度 ,并将数据调度结果指示给终端的过 程为:
当采用如图 6示出的步骤 S202中的方式配置特定频谱的载波上第一无线 通信***的数据调度粒度时, 依据所述数据调度粒度获取对应的数据调度结 果。
基于如图 6所示出的步骤 S202中在特定频谱的载波上对 LTE***的数据 调度粒度的配置方式获得数据调度粒度对终端进行数据调度,并将数据调度结 果指示给终端:
对一个终端来说,可以通过非共享特定频谱上的调度信息指示所述共享特 定频谱上的载波的所述数据调度结果至所述终端,也可以通过共享特定频谱上 的调度信息指示所述共享特定频谱上的载波的所述数据调度结果至所述终端。 其中, 所述非共享或共享特定频谱上的调度信息为 PDCCH/ E- PDCCH指令。
当采用如图 6示出的步骤 S2031中的方式配置特定频谱的载波上第一无线 通信***的数据调度粒度时,依据所述频域上由所述数据调度的周期内可用的 共享数据信道的 s倍带宽作为有效长度的数据调度粒度, 和 /或, 依据时域上 由调度信息指示有效长度的数据调度粒度对所述终端进行数据调度,并获取对 应的数据调度结果。 同样的 S可以取大于 0小于等于 1的数值。可以通过 LTE 非共享特定频谱上 Primary cell的调度信息指示所述共享特定频谱上 Secondary cell 上的所述数据调度结果至所述终端, 也可以通过 LTE共享特定频谱上 Secondary cell的调度信息指示所述共享特定频谱上 Secondary cell上的所述数 据调度结果至所述终端。
基于如图 6所示出的步骤 S2032中在特定频谱的载波上对 LTE***的数 据调度粒度的配置方式获得数据调度粒度对终端进行数据调度,并将数据调度 结果指示给终端的方式可以有两种:
第一种,如图 7所示为: 通过所述非共享特定频谱的载波上的调度信息将 所述共享特定频谱上的载波的数据调度结果指示给所述终端。
第二种,如图 8所示为: 通过所述共享特定频谱的载波上的调度信息将所 述共享特定频谱上的载波的数据调度结果指示给所述终端;此时共享特定频谱 的载波上的部分资源作为数据调度控制信道使用。由于在共享特定频谱上第一 无线通信***(LTE***)和第二无线通信***(WiFi***)共享频谱资源, 则所述的共享特定频谱的载波上的调度信息的发射资源的位置可能是不固定 的。 如图 9所示, 在第一无线通信***的一个 ΤΉ调度周期内, 有一部分资源 是被第二无线通信***(WiFi ***) 占用的。 则第一无线通信***的所述共 享特定频谱的载波上的数据调度控制信道(PDCCH ) 的发射资源和第二无线 通信***占用共享特定频谱的情况有关。
需要说明的是, 采用不同的数据调度粒度对数据调度时,数据调度的结果 指示给所述终端的过程中,可以使用相同格式的数据调度信息将数据调度结果 指示给所述终端。上述以相同格式将数据调度结果指示给所述终端时, 其数据 调度结果的格式为,采用相同的调度信息的资源调度字段表示所述数据调度结 果。
结合附图 6, 以及本发明实施例二中对附图 6中各个步骤的进一步说明, 在 LTE***和 WiFi***的基础上进行举例说明:
通过执行步骤 S202、 S2031或步骤 S2032按照不同的方式配置特定频谱 上 LTE ***的数据调度粒度, 分别按照配置的数据调度粒度实现上述对终端 的数据调度, 并获取对应的数据调度结果, 在对终端进行数据调度的过程中, 上述采用不同数据调度粒度而得到的数据调度粒度的调度,使用相同的资源调 度字段表示各自对应的数据调度结果。
例如: 在下行调度信令的 Resource assignment字段使用 X bit表示各自对 应的数据调度结果。
Figure imgf000022_0001
公式(2 )表示上行调度中各种数据调度粒度情况- F的资源分配结果;
X≥ maxj log2(A (A + 1)/ 2) | ,| log2 (N0M (N0M + 1) /2)
Figure imgf000022_0002
( 2 ) 其中, ^为数据调度周期内可用的共享数据信道频域调度的最大值, 其 来源为: 共享数据信道带宽与频域调度粒度的比值。
W<^M为调度周期内可用的共享数据信道时域调度的最大值, 其来源为: 共享数据时域长度与时域调度粒度的比值;
N^和 分别为在 LTE***中下行或上行的 PRB数目。
以 = 100 , W M = 14的下行调度时, X = 13bit为例:
针对第一种数据调度粒度:
LTE***现有的数据调度粒度,即每次数据调度在时域上的有效长度是调 度周期内可用的共享数据信道的时间, 频域上的有效长度为一个 PRB的频域 宽度。
通过 13bit可以如图 10所示:指示对一个 UE的数据调度从任意一个 PRB 开始到任意一个 PRB结束。
针对第二种数据调度粒度:
每次数据调度在频域上的有效长度是调度周期内可用的共享数据信道的 S倍带宽, 时域上的有效长度由调度信令指示。 此时, S的取值为 1
通过 13bit中的前 7bit (包含 0〜13共 14个 OFDM符号 )可以如图 11所 示: 指示对一个 UE的数据时域调度从任意一个 OFDM符号开始到任意一个 OFDM符号结束。 而 13bit中的后 6bit位设为保留位待扩展使用。
针对第三种数据调度粒度:
每次数据调度在频域上的有效长度是调度周期内可用的共享数据信道的 带宽的 1/4 (即 S取 0.25 ), 时域上的有效长度由调度信息指示。
如图 12所示, 将一个调度周期内的数据共享信道资源按照调度粒度编号 为 0〜55资源。通过 13bit中的前 12bit可以如图 12所示指示对一个 UE的数据 时域调度从任意一个调度资源开始到任意一个调度资源结束。 而 13bit中的最 后 lbit设为保留位待扩展使用。
基于上述本发明实施例一和本发明实施例二中公开的一种数据调度方法, 在执行如图 5所示的步骤 S103或者如图 6所示出的步骤 S205之后, 还包括: 基站按照所述配置的数据调度粒度对所述终端进行数据调度后 ,在传输所 调度的数据时,在所调度的数据的每个数据调度粒度中, 映射解调所调度的数 据所需的解调参考信号, 以达成基站与终端进行数据传输的目的。该解调参考 信号进行映射时以当前的数据调度粒度的情况作为映射的条件。通过该步骤可 最终完成基站与终端之间采用上述配置的数据调度结果进行数据通信。
在该步骤中,解调参考信号按照执行如图 5示出的步骤 S101 ,或者如图 6 示出的步骤 S202、 S2031、 或者步骤 S2032中配置的所述特定频谱上第一无线 通信***的数据调度粒度做资源映射,以使数据调度资源大小为数据调度粒度 时可以被正确解调。
上述资源映射针对上述本发明实施例二所示出步骤 S2031 执行配置得到 的数据调度粒度进行说明。
针对执行如图 6示出的步骤 S2031得到的数据调度粒度,每次数据调度在 频域上的有效长度是调度周期内可用的共享数据信道的带宽,时域上的有效长 度由调度信息指示, 该调度信息所指示的有效长度为一个 OFDM符号的时域 长度。则数据传输中使用的解调参考信号可以在调度周期内可用的共享数据信 道的频域和一个 OFDM符号的时间宽度的资源上映射。
如下图 13所示为解调参考信号的一种资源映射方式:该附图 13中的斜线 部分为解调参考信号 DMRS在调度周期内可用的共享数据信道的频域和一个 OFDM符号的时间宽度的资源上映射的位置。 使用这种方式, 当数据调度结 果为一个 OFDM符号时, 该数据可以被正确解调。
通过上述本发明实施例一基于附图 5和本发明实施例二基于附图 6中示出 的执行各个步骤的进一步说明,强调了配置共享特定频语的载波上第一无线通 信***的数据调度粒度,并按照所配置的在时域上和频域上都更加精确的数据 调度粒度执行对终端的数据调度,在 LTE***和 WiFi***共存于特定频谱时, 使得 LTE***和 WiFi***在共享特定频谱资源时, 根据时域上和频域上更加 精确的数据调度粒度, 使得 LTE***和 WiFi***在进行数据传输时传输机会 分配较为均匀, 对***资源的利用也更加充分。
实施例四 如图 14所示, 为本发明实施例公开的一种数据调度方法的流程图, 该数 据调度方法应用于终端上, 主要包括以下步骤:
步骤 S301 , 终端接收基站指示的数据调度粒度选项, 所述数据调度粒度 选项中包括配置的特定频谱的载波上第一无线通信***在时域上和频域上的 数据调度粒度, 所述特定频谱包括共享特定频谱和非共享特定频谱;
在步骤 S301中, 终端接收基站指示的数据调度结果的方式与上述本发明 实施例一和实施例二中公开的方式相同, 主要有两种:
一种为:依据所述非共享特定频谱上的调度信息接收所述特定频谱的载波 上第一无线通信***的数据调度结果;
另一种为:依据所述共享特定频谱上的调度信息接收所述特定频谱的载波 上第一无线通信***的数据调度结果。 步骤 S302, 终端接收基站指示的数据 调度结果 ,依据解调参考信号对所述数据调度结果进行解调的结果与所述基站 进行数据传输。
其中,所述解调参考信号按照配置的所述特定频谱上第一无线通信***的 数据调度粒度做资源映射。
在步骤 S302中, 终端接收基站指示的数据调度结果, 依据解调参考信号 对所述数据调度结果进行解调的结果,所述基站进行数据传输的方式与上述本 发明实施例三中公开的基站依据解调参考信号对所述数据调度结果进行解调 的结果, 及与所述终端进行数据传输这一步骤的方式相呼应。
需要说明的是, 在执行步骤 S301中, 依据所述共享特定频谱上的调度信 息接收所述特定频谱的载波上第一无线通信***的数据调度结果时,由于在共 享特定频谱上第一无线通信***(LTE ***)和第二无线通信***(WiFi 系 统)共享特定频谱资源, 则所述的共享特定频谱上的调度信息的发射资源的位 置可能是不固定的。如图 9所示,在本第一无线通信***的一个 ΤΉ调度周期 内, 有一部分资源是被第二无线通信***(WiFi ***) 占用的。 则第一无线 通信***的调度信息 (PDCCH ) 的发射资源和第二无线通信***占用共享特 定频谱的情况有关。
因此需要所述终端在共享特定频谱的载波的多个 OFDM上盲检测调度信 息, 直到检测到本第一无线通信***的调度信息 (PDCCH ) 为止, 然后再依 据所述共享特定频谱上的调度信息接收所述特定频谱上第一无线通信***的 数据调度结果。 通过上述本发明实施例一至本发明实施例四中公开的应用于基站和终端 上的数据传输方法,使特定频谱能够合理的被利用,如针对物理资源分配方式 和调度资源大小的不同无线通信***,通过配置共享特定频谱的载波上第一无 线通信***的数据调度粒度, 使其在时域上和频域上的数据调度更加精确。
在本发明上述实施例中给出的在特定频谱中共存 LTE***和 WiFi***, 如图 15所示, 为利用上述本发明实施例一至本发明实施例四中公开的数据调 度方法, 在特定频谱上 LTE***和 WiFi***进行数据调度过程中共同分享特 定频谱资源后, 一个无线帧的结构示意图, 图 15中的横线部分为 LTE***数 据传输, 斜线部分为 WiFi***数据传输。
针对本发明公开的上述实施例中详细描述的数据调度方法,本发明实施例 还分别公开了对应执行上述方法的装置, 下面给出具体的实施例进行详细说 明。
实施例五
如图 16所示, 为对应本发明实施例一所述的数据调度方法的装置结构示 意图, 该数据调度装置应用于基站侧, 主要包括:
配置单元 101 , 用于配置特定频谱的载波上第一无线通信***在时域上和 频域上的数据调度粒度, 并将所述数据调度粒度发送至指示单元 102;
所述指示单元 102, 用于将特定频谱上的部分或全部载波上的所述数据调 度粒度选项指示给终端 UE,及将所述数据调度粒度发送至数据调度单元 103;
所述数据调度单元 103 , 用于按照上述配置的特定频谱上的载波的所述数 据调度粒度选项中指示的数据调度粒度对所述终端 UE进行数据调度, 并将对 应数据调度结果指示给所述终端 UE。
上述本发明实施例五公开的该数据传输装置内各部分的执行原理和过程 与上述本发明实施例一公开的数据传输方法的对应部分相同,这里不再进行贅 述。
基于上述本发明实施例五公开的数据调度装置的结构,还包括第一数据传 输单元, 该第一数据传输单元与数据调度单元相连, 用于在需要进行传输的所 调度的数据的每个数据调度粒度中映射解调参考信号 ,依据解调参考信号对所 调度的数据进行解调的结果与所述终端 UE进行数据传输, 其中, 所述解调参 考信号进行映射时以所述配置单元中输出的数据调度粒度的情况作为映射的 条件。 上述本发明实施例五公开的该数据传输装置内各部分的执行原理和过程 与上述本发明实施例三公开的涉及数据传输的对应部分相同,这里不再进行贅 述。
针对上述本发明实施例五公开的该数据调度装置, 其中, 所述配置单元 101可以具体为:
检测模块, 用于检测是否存在第二无线通信***应用于特定频谱的载波 上,如果不存在则执行第一配置模块,如果存在则执行第二配置模块或第三配 置模块。
第一配置模块,用于采用现有的方式配置所述特定频谱上的载波的数据调 度粒度;
所配置的所述特定频谱上的载波的数据调度粒度是 LTE ***现有的调度 粒度 PRB, 即在时域上第一无线通信***的数据调度的有效长度是所述数据 调度的周期内可用的共享数据信道的时长,在频域上第一无线通信***的数据 调度的有效长度为一个物理资源块的频域宽度的数据调度粒度。该数据调度的 粒度可以为该第一无线通信***中默认的数据调度粒度。
第二配置模块, 用于配置所述特定频谱上的载波的数据调度;
具体配置为,在时域上, 第一无线通信***的数据调度的有效长度为一个 OFDM符号的时域长度; 在频域上, 第一无线通信***的数据调度的有效长 度是所述数据调度的周期内可用的共享数据信道的 S倍带宽的数据调度粒度, S为大于 0小于等于 1的数值;
第三配置模块,用于配置所述特定频谱上的共享特定频谱的载波在时域和 频域上的数据调度粒度; 在时域上, 第一无线通信***的数据调度的有效长度 为一个 OFDM符号的时域长度; 在频域上, 第一无线通信***的数据调度的 有效长度是所述数据调度的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值。
同时,配置所述特定频谱上的非共享特定频谱的载波在时域和频域上的数 据调度粒度为 LTE***现有的调度粒度 PRB, 即在时域上, 第一无线通信系 统的数据调度的有效长度是所述数据调度的周期内可用的共享数据信道的时 长; 在频域上, 第一无线通信***的数据调度的有效长度为一个 PRB的频域 宽度, 该数据调度的粒度可以为该第一无线通信***中默认的数据调度粒度。
所述指示单元 102中则包括: 获取模块, 用于获取所述数据调度粒度选项中, 所述特定频谱的载波上第 一无线通信***在时域上和 /或频域上的数据调度粒度;
第一指示模块,用于通过所述共享特定频谱的载波上的调度信息将所述时 域上和 /或频域上的数据调度粒度指示给终端, 及将所述数据调度粒度发送至 所述数据调度单元;
或, 第二指示模块, 用于通过除所述共享特定频谱的载波之外的其他频谱 上的载波的调度信息将所述时域上和 /或频域上的数据调度粒度指示给终端, 及将所述数据调度粒度发送至所述数据调度单元。
所述数据调度单元 103根据接收到的指示单元 102所指示的数据调度粒度 的不同指示方式也对应不同,当进行特定频谱上的载波的数据调度粒度配置的 是第一配置模块, 则该数据调度单元中包括:
第一数据调度模块,用于依据在时域上第一无线通信***的数据调度的有 效长度是所述数据调度的周期内可用的共享数据信道的时长,在频域上第一无 线通信***的数据调度的有效长度为一个 PRB的频域宽度的数据调度粒度对 所述终端进行数据调度, 并获取对应的数据调度结果;
第二指示模块,用于依据非共享特定频谱上的调度信息指示所述共享特定 频谱上的所述数据调度结果至所述终端,或者通过共享特定频谱上的调度信息 指示所述共享特定频谱上的所述数据调度结果至所述终端 ,及将所述数据调度 结果发送至所述第一数据传输单元;
其中,所述非共享或共享频谱上的调度信息为 PDCCH或 E- PDCCH指令。 当进行特定频谱上的载波的数据调度粒度配置的是第二配置模块,则该数 据调度单元中包括:
第二数据调度模块,用于依据所述频域上由所述数据调度的周期内可用的 共享数据信道的 s倍带宽作为有效长度的数据调度粒度, 和 /或, 依据时域上 由调度信息指示有效长度的数据调度粒度对所述终端进行数据调度,并获取对 应的数据调度结果。
第三指示模块, 用于通过 LTE非共享频谱上 Primary cell的调度信息指示 所述共享频谱上 Secondary cell上的所述数据调度结果至所述终端, 或者通过 LTE共享频谱上 Secondary cell的调度信息指示所述共享频谱上 Secondary cell 上的所述数据调度结果至所述终端,及将所述数据调度结果发送至所述第一数 据传输单元。 其中, 所述非共享特定频谱上 Primary cell的调度信息为物理下行控制信 道指令, 或者, 增强型物理下行控制信道指令。
当进行特定频谱上的载波的数据调度粒度配置的是第三配置模块,则该数 据调度单元中包括:
第三数据调度模块,用于依据所述特定频谱上的共享特定频谱的载波在时 域和频域上的数据调度粒度,或所述特定频谱上的非共享特定频谱的载波在时 域和频域上的数据调度粒度, 即 LTE***现有的调度粒度 PRB对所述终端进 行数据调度, 并获取对应的数据调度结果。
第四指示模块,用于通过非共享特定频谱上的调度信息将所述共享特定频 谱上的数据调度结果指示给所述终端,或者通过所述共享特定频谱上的调度信 息将所述共享特定频谱上的数据调度结果指示给所述终端 ,及将所述数据调度 结果发送至所述第一数据传输单元。
基于上述公开的各个单元中的所具有的模块结构, 在所述数据调控单元
103中还包括:
统一格式模块,用于当所述数据调度粒度选项中指示所述特定频谱上的第 一无线通信的不同数据调度粒度对所述终端进行数据调度时,将数据调度结果 进行格式统一。
基于上述本发明实施例五公开的应用于基站侧的数据调度装置,在实际应 用中可以集成到包括存储介质的存储器中。通过以上描述可知, 本领域的技术 人员可以清楚地了解到本申请可借助软件加必需的通用硬件平台的方式来实 现。 因此本申请还提供了一种基站,如图 17所示,该基站 600包括存储器 601 和通过总线 602与存储器 601连接的处理器 603。
该存储器 601存储基站侧进行数据调度的程序。
存储器可能包含高速 RAM存储器, 也可能还包括非易失性存储器, 例如 至少一个磁盘存储器。
该处理器运行上述程序。上述程序可以包括程序代码, 所述程序代码包括 一系列按照一定顺排列的操作指令。 处理器可能是一个中央处理器 CPU, 或 者是特定集成电路, 或者是被配置成实施本发明实施例的一个或多个集成电 路。
基站侧进行数据调度的程序具体可以包括: 配置特定频谱的载波上第一无线通信***在时域上和频域上的数据调度 粒度;
将特定频谱上的部分或全部载波上的所述数据调度粒度选项指示给终端; 按照上述配置的特定频谱上的载波的所述数据调度粒度选项中指示的数 据调度粒度对所述终端 UE进行数据调度, 并将对应数据调度结果指示给所述 终端 UE。
上述各个单元中限定的或增加的模块结构执行数据传输过程中的原理,以 及执行过程与本发明实施例二和本发明实施例三中公开的数据传输方法的相 应部分相同, 可以相互参照, 这里不再进行贅述。
实施例六 意图, 该数据调度装置应用于终端侧, 主要包括:
接收单元 201 ,用于接收基站 eNB指示的数据调度粒度选项,所述数据调 度粒度选项中包括配置的特定频谱的载波上第一无线通信***的数据调度粒 度, 所述特定频谱包括共享特定频谱和非共享特定频谱;
第二数据传输单元 202,用于接收基站 eNB指示的数据调度结果,依据解 调参考信号对所述数据调度结果进行解调的结果与所述基站 eNB进行数据传 输;
其中,所述解调参考信号按照配置的所述特定频谱上第一无线通信***的 数据调度粒度做资源映射。
该第二数据传输单元 202可以具体为:
第一接收模块,用于依据所述共享特定频谱上的调度信息接收所述特定频 谱的载波上第一无线通信***的数据调度结果;
其中所述第一接收模块中包括盲检模块, 用于在至少一个 OFDM符号上 盲检物理下行控制信道, 获取所述特定频谱上的调度信息。
该第二数据传输单元 202也可以具体为:
第二接收模块,用于依据除所述共享特定频谱之外的其他频谱上的载波上 的调度信息接收所述特定频谱的载波上第一无线通信***的数据调度结果。
基于上述本发明实施例六公开的应用于终端侧的数据调度装置,在实际应 用中也可以集成到包括存储介质的存储器中。通过以上描述可知, 本领域的技 术人员可以清楚地了解到本申请可借助软件加必需的通用硬件平台的方式来 实现。 因此本申请还提供了一种终端, 如图 19所示, 该终端 700包括存储器 701和通过总线 702与存储器 701连接的处理器 703。
该存储器存储终端侧进行数据调度的程序。
存储器可能包含高速 RAM存储器, 也可能还包括非易失性存储器, 例如 至少一个磁盘存储器。
该处理器运行上述程序。上述程序可以包括程序代码, 所述程序代码包括 一系列按照一定顺排列的操作指令。 处理器可能是一个中央处理器 CPU, 或 者是特定集成电路, 或者是被配置成实施本发明实施例的一个或多个集成电 路。
终端侧进行数据调度的程序具体可以包括:
接收基站 eNB指示的数据调度粒度选项, 所述数据调度粒度选项中包括 配置的特定频谱的载波上第一无线通信***的数据调度粒度,所述特定频谱包 括共享特定频谱和非共享特定频谱;
接收基站 eNB指示的数据调度结果, 依据解调参考信号对所述数据调度 结果进行解调的结果与所述基站 eNB进行数据传输。
上述本发明实施例六公开的该数据传输装置内各部分的执行原理和过程 与上述本发明实施例四公开的数据传输方法的对应部分相同,这里不再进行贅 述。
综上所述:
本发明实施例公开的数据传输方法和装置,在进行数据传输前, 由基站配 置特定频谱的载波上的第一无线通信***的数据调度粒度 ,在进行数据传输的 过程中, 涉及共享特定频谱资源时, 利用配置的数据调度粒度对终端进行数据 调度,并将对应数据调度结果指示给终端通过配置特定频谱的载波上无线通信 的数据调度粒度, 实现***间在利用特定频谱资源时的分配机会更加均匀, 更 加充分利用***资源目的。进一步的,基于该数据调度结果实现基站与终端之 间的数据传输。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是 与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。对于 实施例公开的装置而言, 由于其与实施例公开的方法相对应, 所以描述的比较 简单, 相关之处参见方法部分说明即可。
结合本文中所公开的实施例描述的方法或算法的步骤可以直接用硬件、处 理器执行的软件模块, 或者二者的结合来实施。软件模块可以置于随机存储器 ( RAM )、内存、只读存储器 ( ROM )、电可编程 ROM、电可擦除可编程 ROM, 寄存器、 硬盘、 可移动磁盘、 CD-ROM, 或技术领域内所公知的任意其它形式 的存储介质中。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本 发明。 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见 的, 因此, 本发明将不会被限制于本文所示的这些实施例, 而是要符合与本文 所公开的原理和新颖特点相一致的最宽的范围。

Claims

权 利 要 求
1、 一种数据调度方法, 应用于基站, 其特征在于,
配置特定频谱的载波上第一无线通信***在时域上和频域上的数据调度 粒度;
将配置的所述特定频谱上的部分或全部载波上的数据调度粒度选项指示 给终端;
按照配置的所述特定频谱上的载波的数据调度粒度对所述终端进行数据 调度, 并将进行数据调度后获得的数据调度结果指示给所述终端。
2、根据权利要求 1所述的方法, 其特征在于, 配置的所述特定频谱的载 波上第一无线通信***在时域上和频域上的数据调度粒度, 包括:
确定是否存在第二无线通信***应用于所述特定频谱的载波上
当不存在时,配置所述特定频谱的载波上所述第一无线通信***在时域和 频域上的数据调度粒度;
在时域上 ,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的时长;
在频域上,所述第一无线通信***的数据调度的有效长度为一个物理资源 块的频域宽度;
其中, 所述第一无线通信***为长期演进 LTE***。
3、 根据权利要求 1所述的方法, 其特征在于, 配置的所述特定频-潜的载 波上第一无线通信***在时域上和频域上的数据调度粒度包括:
确定是否存在第二无线通信***应用于所述特定频谱的载波上; 当存在时, 配置所述特定频谱的载波上在时域和频域上的数据调度粒度; 在时域上,所述第一无线通信***的数据调度的有效长度为一个正交频分 复用 OFDM符号的时域长度;
在频域上,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值; 其中, 所述第一无线通信***为 LTE ***, 所述第二无线通信***为无 线保真 WiFi***。
4、 根据权利要求 1所述的方法, 其特征在于, 配置的所述特定频-潜的载 波上无线通信***在时域上和频域上的数据调度粒度包括:
确定是否存在第二无线通信***应用于所述特定频谱的载波上; 当存在时,配置所述特定频谱上的共享特定频谱的载波上所述第一无线通 信***在时域和频域上的数据调度粒度;
在时域上, 所述第一无线通信***的数据调度的有效长度为一个 OFDM 符号的时域长度;
在频域上,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值; 配置所述特定频谱上的非共享特定频谱的载波上所述第一无线通信*** 在时域和频域上的数据调度粒度;
在时域上 ,所述第一无线通信***的数据调度的有效长度是所述数据调度 的周期内可用的共享数据信道的时长;
在频域上,所述第一无线通信***的数据调度的有效长度为一个物理资源 块的频域宽度;
其中, 所述第一无线通信***为 LTE ***, 特定频谱上存在的所述第二 无线通信***为 WiFi***。
5、 根据权利要求 1〜4中的任意一项所述的方法, 其特征在于, 所述将配 置的所述特定频谱上的部分或全部载波上的数据调度粒度选项指示给终端,包 括:
获取所述数据调度粒度选项中,所述特定频谱上所述第一无线通信***在 时域上和 /或频域上的数据调度粒度;
通过所述共享特定频谱的载波上的调度信息将所述时域上和 /或频域上的 数据调度粒度指示给终端;
或者,通过除所述共享特定频谱的载波之外的其他频谱上的载波的调度信 息将所述时域上和 /或频域上的数据调度粒度指示给终端。
6、 根据权利要求 4所述的方法, 其特征在于, 将配置的所述特定频语上 的部分或全部载波上的数据调度粒度选项指示给终端, 包括: 上所述第一无线通信***在时域上和频域上的数据调度粒度时,通过所述共享 特定频谱的载波上的调度信息,或除所述共享特定频谱的载波之外的其他频谱 上的载波的调度信息将所述数据调度粒度指示给终端;
其中,不向所述终端发送指示的条件为所述数据调度粒度选项中是所述特 定频谱上的非共享特定频谱的载波上所述第一无线通信***在时域和频域上 的数据调度粒度。
7、 根据权利要求 1或 2所述的方法, 其特征在于, 按照配置的所述特定 频谱上的载波的数据调度粒度对所述终端进行数据调度, 包括:
依据所述时域上的有效长度是所述数据调度的周期内可用的共享数据信 道的时长的数据调度粒度;
和 /或, 依据在频域上一个资源块的频域宽度的调度粒度对所述终端进行 数据调度, 并获取对应的数据调度结果。
8、 根据权利要求 1或 3所述的方法, 其特征在于, 按照配置的所述特定 频谱上的载波的数据调度粒度对所述终端进行数据调度, 包括:
依据所述频域上的有效长度是所述数据调度的周期内可用的共享数据信 道的 S倍带宽的数据调度粒度;
和 /或, 依据在时域上有效长度为一个 OFDM符号的时域长度的数据调度 粒度对所述终端进行数据调度, 并获取对应的数据调度结果。
9、 根据权利要求 1或 4所述的方法, 其特征在于, 按照配置的所述特定 频谱上的载波的数据调度粒度对所述终端进行数据调度, 包括:
在所述特定频谱上的非共享特定频谱上依据所述时域上的有效长度是所 述数据调度的周期内可用的共享数据信道的时长的数据调度粒度;
和 /或, 依据在频域上一个资源块的频域宽度的调度粒度对所述终端进行 数据调度, 并获取对应的数据调度结果;
在所述特定频谱上的非共享特定频谱上,依据所述频域上的有效长度是所 述数据调度的周期内可用的共享数据信道的 S倍带宽的数据调度粒度;
和 /或, 依据在时域上有效长度为一个 OFDM符号的时域长度的数据调度 粒度对所述终端进行数据调度, 并获取对应的数据调度结果。
10、 根据权利要求 7、 8或 9所述的方法, 其特征在于, 所述将对应数据 调度结果指示给所述终端, 包括:
依据所述非共享特定频谱上的调度信息将所述共享特定频谱上的所述数 据调度结果指示至所述终端;
或者,依据所述共享特定频谱上的调度信息将所述共享特定频谱上的所述 数据调度结果指示至所述终端。
11、 根据权利要求 10所述的方法, 其特征在于, 所述将对应数据调度结 果指示给所述终端, 还包括: 当所述配置的特定频谱上的各个载波的数据调度粒度不同时,指示给所述 终端的所述数据调度结果采用相同的调度信息的资源调度字段表示。
12、 根据权利要求 1 ~ 11中任意一项所述的方法, 其特征在于, 在将对应 数据调度结果指示给所述终端之后, 还包括:
按照所述配置的数据调度粒度对所述终端进行数据调度;
获取所调度的数据,在所述调度的数据的每个数据调度粒度中映射解调所 调度的数据所需的解调参考信号;
依据解调结果与所述终端进行数据传输;
其中,所述解调参考信号按照配置的所述特定频谱的载波上第一无线通信 ***的数据调度粒度做资源映射。
13、 一种数据调度方法, 应用于终端, 其特征在于, 包括:
接收基站指示的特定频谱上的部分或全部载波上的数据调度粒度选项,所 述数据调度粒度选项中包括配置的特定频谱的载波上第一无线通信***在时 域上和频域上的数据调度粒度;
接收基站指示的数据调度结果,依据解调参考信号对所述数据调度结果进 行解调的结果与所述基站进行数据传输;
其中,所述解调参考信号按照配置的所述特定频谱的载波上第一无线通信 ***的数据调度粒度做资源映射。
14、 根据权利要求 13所述的方法, 其特征在于, 接收基站指示的数据调 度结果, 包括:
依据所述共享特定频谱的载波上的调度信息接收所述特定频谱上第一无 线通信***的数据调度结果;
或者,依据除所述共享特定频谱的载波之外的其他频谱上的载波的调度信 息接收所述特定频谱上所述第一无线通信***的数据调度结果。
15、 根据权利要求 14所述的方法, 其特征在于, 依据所述共享特定频谱 的载波上的调度信息接收所述特定频谱上第一无线通信***的数据调度结果, 包括:
盲检至少一个 OFDM符号的物理下行控制信道, 获取所述特定频谱上的 调度信息;
依据所述共享特定频谱的载波上的调度信息接收所述特定频谱上所述第 一无线通信***的数据调度结果。
16、一种数据调度装置, 其特征在于,应用于基站侧, 其特征在于, 包括: 配置单元,用于配置特定频谱的载波上第一无线通信***在时域上和频域 上的数据调度粒度, 并将所述数据调度粒度发送至指示单元;
所述指示单元,用于将所述特定频谱上部分或全部载波上的所述数据调度 粒度选项指示给终端, 及将所述数据调度粒度发送至数据调度单元;
所述数据调度单元,用于按照所述数据调度粒度选项中指示的数据调度粒 度对所述终端进行数据调度, 并将对应数据调度结果指示给所述终端。
17、 根据权利要求 16所述的装置, 其特征在于, 还包括:
所述第一数据传输单元,用于接收配置单元发送的所述数据调度粒度和所 述数据调度单元发送的所述数据调度结果,获取所调度的数据的每个数据调度 粒度中映射解调参考信号,依据所述解调参考信号对所调度的数据进行解调的 结果与所述终端进行数据传输, 其中, 所述解调参考信号按照所述配置单元中 输出的数据调度粒度做资源映射。
18、根据权利要求 16或 17所述的装置,其特征在于,所述配置单元包括: 检测模块, 用于检测是否存在第二无线通信***应用于特定频谱的载波 上, 当不存在时, 执行第一配置模块;
所述第一配置模块, 用于配置在时域上, 所述第一无线通信***的有效长 度是所述数据调度的周期内可用的共享数据信道的时长, 频域上, 所述第一无 线通信***的有效长度是一个资源块的频域宽度的数据调度粒度。
19、根据权利要求 16或 17所述的装置,其特征在于,所述配置单元包括: 检测模块, 用于检测是否存在第二无线通信***应用于特定频谱的载波 上, 当存在时, 执行第二配置模块或第三配置模块;
所述第二配置模块, 用于配置在时域上, 所述第一无线通信***的数据调 度的有效长度为一个 OFDM符号的时域长度; 在频域上, 所述第一无线通信 ***的数据调度有效长度是所述数据调度的周期内可用的共享数据信道的 S 倍带宽的数据调度粒度, S为大于 0小于等于 1的数值;
所述第三配置模块,用于配置所述特定频谱上的共享特定频谱的载波在所 述第一无线通信***在时域和频域上的数据调度粒度; 在时域上, 所述第一无 线通信***的数据调度的有效长度为一个 OFDM符号的时域长度;在频域上, 所述第一无线通信***的数据调度的有效长度是所述数据调度的周期内可用 的共享数据信道的 S倍带宽, S为大于 0小于等于 1的数值。
20、根据权利要求 16〜19中任意一项所述的装置, 其特征在于, 所述指示 单元包括:
获取模块, 用于获取所述数据调度粒度选项中, 所述特定频谱的载波上所 述第一无线通信***在时域上和 /或频域上的数据调度粒度;
第一指示模块,用于通过所述共享特定频谱的载波上的调度信息将所述时 域上和 /或频域上的数据调度粒度指示给终端, 及将所述数据调度粒度发送至 所述数据调度单元;
或, 第二指示模块, 用于通过除所述共享特定频谱的载波之外的其他频谱 上的载波的调度信息将所述时域上和 /或频域上的数据调度粒度指示给终端, 及将所述数据调度粒度发送至所述数据调度单元。
21、 根据权利要求 16 ~ 18中任意一项所述的装置, 其特征在于, 所述数 据调度单元包括:
第一数据调度模块,用于依据所述在时域上所述第一无线通信***的数据 调度的有效长度是所述数据调度的周期内可用的共享数据信道的时长,在所述 频域上所述第一无线通信***的数据调度的有效长度为一个资源块 PRB的频 域宽度的数据调度粒度对所述终端进行数据调度, 并获取对应的数据调度结 果;
第二指示模块,用于依据非共享特定频谱上的调度信息指示所述特定频谱 中的共享特定频谱上的所述数据调度结果至所述终端,或者通过共享特定频谱 上的调度信息指示所述共享特定频谱上的所述数据调度结果至所述终端,及将 所述数据调度结果发送至所述第一数据传输单元;
其中, 所述非共享或共享特定频谱上的调度信息为物理下行控制信道 PDCCH/增强型物理下行控制信道 E- PDCCH指令。
22、 根据权利要求 19所述的装置, 其特征在于, 当采用所述第二配置模 块进行配置时, 所述数据调度单元包括:
第二数据调度模块,用于依据所述频域上由所述数据调度的周期内可用的 共享数据信道的 s倍带宽作为有效长度的数据调度粒度, 和 /或, 依据时域上 由调度信息指示有效长度的数据调度粒度对所述终端进行数据调度,并获取对 应的数据调度结果;
第三指示模块, 用于通过 LTE非共享频谱上 Primary cell的调度信息指示 所述共享频谱上 Secondary cell上的所述数据调度结果至所述终端, 或者通过 LTE共享频谱上 Secondary cell的调度信息指示所述共享频谱上 Secondary cell 上的所述数据调度结果至所述终端,及将所述数据调度结果发送至所述第一数 据传输单元。
23、 根据权利要求 19所述的装置, 其特征在于, 当采用第三配置模块进 行配置时, 所述数据调度单元包括:
第三数据调度模块,用于依据所述特定频谱上的共享特定频谱的载波在时 域和频域上的数据调度粒度,或所述特定频谱上的非共享特定频谱的载波在时 域和频域上的数据调度粒度,对所述终端进行数据调度, 并获取对应的数据调 度结果;
第四指示模块,用于通过非共享特定频谱上的调度信息将所述共享特定频 谱上的数据调度结果指示给所述终端 ,或者通过所述共享特定频谱上的调度信 息将所述共享特定频谱上的数据调度结果指示给所述终端 ,及将所述数据调度 结果发送至所述第一数据传输单元。
24、 根据权利要求 16 ~ 23中任意一项所述的装置, 其特征在于, 所述数 据调度单元还包括:
统一格式模块,用于当所述数据调度粒度选项中指示所述特定频谱上的所 述第一无线通信的不同数据调度粒度对所述终端进行数据调度时,将数据调度 结果采用相同的调度信息的资源调度字段表示。
25、 一种基站, 其特征在于, 包括:
具有存储介质的存储器, 所述存储器中存储有基站侧进行数据调度的程 序;
通过总线与所述存储器连接的处理器, 所述处理器通过权利要求 1 ~ 12 中所述的任意一项数据调度的方法执行所述程序。
26、 一种数据调度装置, 应用于终端, 其特征在于, 包括:
接收单元, 用于接收基站指示的数据调度粒度选项, 所述数据调度粒度选 项中包括配置的特定频谱的载波上第一无线通信***的数据调度粒度,所述特 定频谱包括共享特定频谱和非共享特定频谱;
第二数据传输单元, 用于接收基站指示的数据调度结果,依据解调参考信 号对所述数据调度结果进行解调的结果与所述基站进行数据传输; 其中, 所述 解调参考信号按照配置的所述特定频谱上所述第一无线通信***的数据调度 粒度做资源映射。
27、 根据权利要求 26所述的装置, 其特征在于, 第二数据传输单元包括: 第一接收模块,用于依据所述共享特定频谱上的调度信息接收所述特定频 谱的载波上所述第一无线通信***的数据调度结果;
或者, 第二接收模块, 用于依据除所述共享特定频语之外的其他频谱上的 载波上的调度信息接收所述特定频谱的载波上所述第一无线通信***的数据 调度结果。
28、 根据权利要求 27所述的装置, 其特征在于, 所述第一接收模块包括: 盲检模块, 用于盲检至少一个 OFDM符号的物理下行控制信道, 获取所 述特定频谱上的调度信息。
29、 一种终端, 其特征在于, 包括:
具有存储介质的存储器, 所述存储器中存储有终端侧进行数据调度的程 序;
通过总线与所述存储器连接的处理器, 所述处理器通过权利要求 13 ~ 15 中所述的任意一项数据调度的方法执行所述程序。
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