WO2015109805A1 - 无线资源确定、获取方法及装置 - Google Patents
无线资源确定、获取方法及装置 Download PDFInfo
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- WO2015109805A1 WO2015109805A1 PCT/CN2014/083168 CN2014083168W WO2015109805A1 WO 2015109805 A1 WO2015109805 A1 WO 2015109805A1 CN 2014083168 W CN2014083168 W CN 2014083168W WO 2015109805 A1 WO2015109805 A1 WO 2015109805A1
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- resource
- resources
- component carriers
- component carrier
- contention
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0006—Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
Definitions
- an eNodeB (eB or a Base Station, BS) is a device that provides wireless access for a User Equipment (UE), which may also be called a terminal.
- UE User Equipment
- the base station and the user equipment communicate wirelessly by electromagnetic waves.
- a base station may provide one or more service cells, and the wireless communication system may provide wireless coverage for terminals within a certain geographical range through the serving cell.
- Spectrum resources can be divided into licensed spectrum and unlicensed spectrum, as well as dedicated spectrum, such as: wifi systems operate in unlicensed spectrum, proprietary spectrum used by broadcast television, and licensed spectrum purchased by telecom operators.
- the present invention provides a method and apparatus for determining and acquiring radio resources, in order to solve at least the above problems, for a system in which different systems and different operators' wireless communication systems operate simultaneously on the unlicensed spectrum. problem.
- a method for determining a radio resource including: acquiring pre-defined information, where the pre-defined information includes indication information of a dedicated node, and/or, a multi-system shared spectrum component carrier The measured value, where the indication information includes: a maximum component carrier quantity information in a multi-system shared spectrum that the system can use, the measurement value being acquired according to a predetermined signal on the component carrier; determining according to the predefined information The number of maximum component carriers in the multi-system shared spectrum that the system is capable of using.
- the predefined information includes the measured value of the component carrier on the multi-system shared spectrum
- determining, according to the predefined information, the maximum number of component carriers that the system can use the multi-system shared spectrum including: The number of component carriers whose value is less than the threshold is H, and the number of component carriers currently used by the system is small.
- H the number of component carriers used by the system is selected on the premise of satisfying the first pre-defined principle; wherein the first predefined principle includes: The maximum number of component carriers used by the system cannot exceed 11.
- the method further includes: the system releasing the occupied wireless resources.
- the system releases the occupied radio resources, including: the system releases the occupied part of the radio resources at a time, so that the number of component carriers that are aggregated after being released is less than or equal to H, or the number of component carriers that are released is at least equal to or greater than 1.
- the H is 0 or the H is less than or equal to a predefined value N
- the maximum number of component carriers used by the system is N or k, where N, k are positive integers and k is less than N.
- N is 1 or 2 or 3.
- acquiring the predefined information includes: when the system arrives at a predetermined time, sharing each component of the spectrum with the multiple systems The predetermined signal of the carrier is measured, and the measured values of the respective component carriers on the shared spectrum of the multiple systems are obtained.
- the predetermined time comprises one of: a time selected by the system within a predetermined time period; a time when the predetermined measurement period is reached; and a time when the system performance reaches a predetermined value.
- acquiring the predefined information includes one of: determining the corresponding component carrier according to the measured interference signal strength on each of the component carriers. The measured value is determined according to the known signal strength measured on each of the component carriers; the corresponding component is determined according to the ratio of the known signal strength and the interference signal strength measured on each of the component carriers The measured value of the carrier.
- the method further The method includes: determining a component carrier used by the system according to the measured value of each of the component carriers.
- determining the component carriers used by the system according to the measured values of the respective component carriers comprises: performing carrier aggregation according to the measured values from small to large, if the system can only use resources of one component carrier, Select the component carrier with the smallest measured value, or select any component carrier, or select the component carrier with the largest measured value.
- the method further includes: the system adopts a competition manner in which the shared spectrum of the multiple systems is not greater than A resource is acquired on a component carrier of the maximum number of component carriers.
- the method further includes: the system passes the competing resources.
- the user equipment is allocated in a scheduled manner.
- the method further includes: the user equipment acquiring the resource on the shared spectrum of the multiple system according to the system scheduling information, or acquiring the resource on the shared spectrum of the multiple system by the user equipment in a contention manner.
- the system acquires resources on a component carrier of the multi-system shared spectrum that is not greater than the maximum number of component carriers in a contention manner, including one of the following: the system according to a competing signal or channel on a respective component carrier Competing for resources on the respective component carriers, wherein the number of component carriers that the system contends for is not greater than the maximum number of component carriers; if the component carriers corresponding to the multi-system shared spectrum are at least divided into two categories, one type is A carrier for transmitting a contention signal or channel, one of which is to acquire a component carrier for data transmission by contention, and the system acquires a contention signal or channel on a carrier for transmitting a contention signal or channel, and then acquires a contention signal.
- the channel contends for a resource on a component carrier for data transmission, where the sum of the number of component carriers of the transmission contention signal or channel acquired by the system and the number of component carriers of the transmission data is not greater than the maximum number of component carriers; If the multi-system shared spectrum corresponds to at least a component carrier There are two types, one is a component carrier obtained by a competitive method, and the other is a component carrier obtained by a non-contention method, and the system determines a corresponding component carrier acquisition manner according to the component carrier type, where the system passes The sum of the number of component carriers acquired by the contention mode and the number of component carriers acquired by the non-contention mode is not greater than the maximum number of component carriers.
- the method further includes: determining, by the system, the How resources are used.
- the determining, by the system, the usage manner of the resource according to the acquired resource includes: if the contention resource is a discontinuous time domain resource, the usage manner of the resource includes at least one of the following: The continuous physical resource is virtualized as a continuous resource, and the resource is used according to the working mode of the continuous resource in the system; the base station uses the resource in a time division duplex mode, and configures the non-competing resource as an uplink subframe; The working mode of the resource uses the resource, and the base station defines the non-competing resource as a zero power subframe or a null subframe; the base station broadcasts the time domain location information of the discontinuous time domain resource.
- the method further includes: performing automatic hybrid retransmission request HARQ timing on the physical shared channel, and redefining according to the contending resources, so that when the base station or the terminal sends data, resources are available, or according to the existing timing, Handle in an adaptive manner or a pending wait.
- the method further comprises: setting a system bandwidth and a frequency point of the system, wherein different systems are aligned at a frequency point of the same frequency spectrum.
- setting the system bandwidth and the frequency of the system includes: setting a system bandwidth corresponding to the component carrier on the premise of ensuring the number of component carriers used by the system; or determining the number of component carriers used by the system Previously, set the system bandwidth corresponding to the component carrier.
- setting the system bandwidth comprises: setting the system bandwidth to a preset value; wherein the preset value comprises: 20 MHz, 10 MHz, or 5 MHz; or, according to the available spectrum size of the frequency band in which the system is located Determining the preset value; or setting the system bandwidth in such a manner that the available spectrum size can define the number of component carriers as much as possible.
- a device for determining a radio resource including: an obtaining module, configured to acquire pre-defined information, where the pre-defined information includes indication information of a dedicated node, and/or, The system shares the measured value of the component carrier on the spectrum, where the indication information includes: a maximum component carrier quantity information in a multi-system shared spectrum that can be used by the system, where the measured value is obtained according to a predetermined signal on the component carrier;
- a determining module is configured to determine, according to the predefined information, a maximum number of component carriers in the multi-system shared spectrum that the system can use.
- the device further includes: a release module, configured to: when the predefined information includes the measured value of the component carrier on the multi-system shared spectrum, if the number of component carriers whose measured value is less than the threshold is H, and The number of component carriers currently used by the system is greater than H, and the occupied radio resources are released.
- the device further includes: a second determining module, configured to: when the predefined information includes the measured value of the component carrier on the multi-system shared spectrum, determine the used by the system according to the measured value of each of the component carriers Component carrier.
- the apparatus further comprises: a contention module configured to acquire resources on a component carrier of the multi-system shared spectrum that is not greater than the maximum number of component carriers in a contention manner.
- a method for acquiring a radio resource including: the system acquiring a resource on a component carrier of a multi-system shared spectrum in a competitive manner.
- the method further includes: the system allocating the competing resources to the user equipment in a scheduling manner.
- the method further includes: the user equipment acquiring the resource on the shared spectrum of the multiple system according to the system scheduling information, or acquiring the resource on the shared spectrum of the multiple system by the user equipment in a contention manner.
- the system acquires resources on the component carriers of the multi-system shared spectrum in a competitive manner, including one of: the system competing for resources on the respective component carriers according to the contention signals or channels on the respective component carriers;
- the component carriers corresponding to the system shared spectrum are classified into at least two types, one is a carrier for transmitting a contention signal or a channel, and the other is a component carrier for data transmission by contention, and the system is used for transmitting a contention signal.
- the carrier of the channel acquires a contention signal or a channel, and then contends for resources on the component carrier used for data transmission through the acquired contention signal or channel; if the multi-system shared spectrum corresponds to at least two types of component carriers, one class A component carrier obtained by a contention method, and a component carrier obtained by a non-contention method, the system determines a corresponding component carrier acquisition manner according to the component carrier type.
- the resources acquired in a contention manner include: a resource for transmitting a contention signal or a channel.
- the resource acquired in a competitive manner further includes: a resource for competing for conflict resolution or a resource for competing resource confirmation.
- the system acquires resources on the component carriers of the multi-system shared spectrum in a competitive manner, including: the system sends the system to compete in the transmission on the selected contention acknowledgment resource corresponding to the resource for transmitting the contending signal or the channel. A signal that is monitored on a resource of a signal or channel; the system confirms whether it is competing for a corresponding resource by a signal received by each system sent by another system received on the contention confirmation resource.
- the method further includes: determining, by the system, the usage manner of the resources according to the acquired resources.
- the determining, by the system, the usage manner of the resource according to the acquired resource includes: if the contention resource is a discontinuous time domain resource, the usage manner of the resource includes at least one of the following: Decoding the time domain location information of the discontinuous time domain resource; the base station virtualizes the discontinuous physical resource into a continuous resource, and uses the resource according to the working mode of the continuous resource in the system; the base station uses the resource in a time division duplex mode, The resources that are not competing are configured as uplink subframes; according to the system using the resources in the working mode of the continuous resources, the base station defines the resources that are not competing as zero power subframes or null subframes.
- the method further includes: performing automatic hybrid retransmission request HARQ timing on the physical shared channel, and redefining according to the contending resources, so that when the base station or the terminal sends data, resources are available, or according to the existing timing, Handle in an adaptive manner or a pending wait.
- a device for acquiring a radio resource including: an obtaining module, configured to acquire a resource on a component carrier of a multi-system shared spectrum in a contention manner.
- the apparatus further includes: an allocating module, configured to allocate the contending resources to the user equipment by scheduling.
- the device further includes: a determining module, configured to determine a usage manner of the resource according to the resource acquired by the acquiring module.
- a determining module configured to determine a usage manner of the resource according to the resource acquired by the acquiring module.
- FIG. 1 is a flowchart of a method 100 for determining a radio resource according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a determining apparatus 200 for a radio resource according to an embodiment of the present invention
- FIG. 4 is a flowchart of a method 400 for acquiring a radio resource according to an embodiment of the present invention
- FIG. 5 is a diagram of a structure of a radio resource acquiring apparatus 500 according to an embodiment of the present invention; schematic diagram. BEST MODE FOR CARRYING OUT THE INVENTION
- the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
- LTE-A Long Term Evolution
- CA Carrier Aggregation
- the carrier-aggregated LTE system bandwidth can be regarded as a component carrier (Component Carrier, CC for short), and each component carrier can also be called a serving cell, that is, one spectrum can be composed of n component carriers ( Or the service community) is aggregated.
- the resources of one RIO UE are composed of n component carriers (or serving cells) in the frequency domain, where one serving cell is called a primary cell or a primary component carrier, and the remaining serving cells are called secondary cells (Secondary cells) or Secondary component carrier.
- the above component carriers may also be regarded as subchannels, each component carrier corresponding to one subchannel, or the component carrier is regarded as a resource unit.
- the system bandwidth is independently planned by each operator, and the terminal determines by detecting signaling or signals, and the maximum number of aggregated carriers and the size of the licensed spectrum are predefined, and there is no dynamic change and limitation.
- the resources on the spectrum are available resources, and the base station allocates corresponding terminals of the component carriers according to the scheduling algorithm, and the base station can adjust the transmission power according to requirements.
- there may be multiple systems including different systems, such as LTE system and wifi system, LTE system and HSPA system, LTE system and GSM system, LTE system and CDMA system, etc., and also include the same standard of different operators.
- the system such as: LTE system of operator 1 and LTE system of carrier 2, etc.
- FIG. 1 is a flowchart of a method 100 for determining a radio resource according to an embodiment of the present invention.
- the determining method 100 mainly includes step S102 and step S104.
- the pre-defined information is obtained, where the pre-defined information includes the indication information of the dedicated node, and/or the measurement value of the component carrier on the multi-system shared spectrum, where the indication information includes: The maximum component carrier number information in the multi-system shared spectrum that the system can use, the measured value being obtained based on a predetermined signal on the component carrier.
- the system determines the maximum number of component carriers that the system can use to share the spectrum.
- the dedicated node may be a node shared by one or more of the plurality of systems sharing the spectrum, or may be a special node dedicated to the shared spectrum.
- the determining method 100 of the embodiment of the present invention solves the interference problem between systems by controlling the number of carriers used by the system, and can also improve the spectrum use efficiency.
- the predefined information includes the measured value of the component carrier on the multi-system shared spectrum
- the number of carriers whose measured value is less than the threshold in step S102 is H
- the number of currently used carriers is less than H
- the number of carriers to be used may be selected on the premise that the first pre-defined principle is met.
- the first pre-defined principle specifically includes: the maximum number of carriers used by the system cannot exceed H.
- the method further includes: the system releasing the occupied radio resources.
- the releasing the occupied radio resources may include: releasing the one-time release, so that the number of carriers aggregated after being released is less than or equal to H; or, the number of released carriers is at least equal to or greater than 1, after being released.
- the number of aggregated carriers can be greater than H or less than or equal to 11.
- H is 0 or H is less than or equal to the predefined value N
- the maximum number of carriers that can be used by the system determined in step S104 is N or k, N, k are positive integers, and k is less than N;
- the value of N is 1 or 2 or 3.
- the system may perform the measurement in the foregoing step S102 once in a certain time.
- the step S102 may be obtained by measuring a predetermined signal on the component carrier, where each system of the measurement time may be within a certain range. Choose independently, or, measure at a certain period, or use triggered measurements based on system performance.
- the predefined information includes the measured value of the component carrier on the multi-system shared spectrum
- the measured value may be determined according to the measured interference signal strength, or according to the measured known signal strength.
- Determining, or determining, the measured value is determined based on the measured ratio of known signal strength to interference signal strength.
- the measurement is performed in units of component carriers, that is, each component carrier corresponds to one measurement value.
- the method may further include: determining, according to the measured value of each component carrier, the component carrier used by the system.
- determining, according to the measured value of each component carrier, the component carrier used by the system may include: performing carrier aggregation according to the measured value from small to large. If only one component carrier resource is used, the component with the smallest measured value may be selected.
- Carrier or, arbitrarily select one component carrier, or select the component carrier with the largest measured value.
- the measured value size represents the degree of interference
- the measured value of a component carrier indicates that the component carrier is in a strong interference condition, the newly opened system or the opened system needs to be avoided, and the used component is reduced.
- the number of carriers such as: Only one component carrier is used, thereby reducing the generation of self-interference and reducing interference to other systems; when there is an interference system, the maximum number of component carriers used by all systems is limited, such as: When one or two component carriers are used without interfering systems or few interfering systems (relative to the number of available component carriers), the maximum number of carriers aggregated by all systems is not limited or limited.
- the idle scenario resource can be maximized, and the interference generated by each system of the interference scenario is limited (only one carrier), thereby implementing interference control, and the foregoing method provided by the embodiment of the present invention can be reduced. Interference between systems on the unlicensed spectrum. At the same time, avoiding the problem that a system always monopolizes resources without release, so that both the first boot system and the post boot system have the same rights, ensuring the fairness of resource use.
- the resources used by the system can be further obtained in a competitive manner.
- the system allocates the contending resources to the user equipment by using a scheduling manner, for receiving data or sending data; or, different base stations and user equipments may also be viewed.
- the D2D competition mode is adopted to acquire resources on the spectrum.
- the acquiring, by the system, the resources in a contention manner may include one of the following modes: mode a: competing resources on respective component carriers according to a contention signal or channel on a respective component carrier; mode b: dividing the component carrier into at least Two types, one is a carrier for transmitting a contention signal or a channel, and the other is a component carrier for data transmission by contention.
- the system acquires a contention signal or channel from a carrier for transmitting a contention signal or channel, and then passes The acquired contention signal or channel contends for resources on a component carrier for data transmission, where the sum of the number of component carriers transmitting the contention signal or channel and the number of component carriers transmitting the data is not greater than the maximum component carrier
- the number of the component carriers is divided into two types according to the multi-system shared spectrum, one is a component carrier obtained through a contention manner, and the other is a component carrier obtained by a non-contention method, and the system is based on a component.
- the carrier type determines a corresponding component carrier acquisition mode, where the sum of the number of component carriers obtained by the system in a contention manner and the number of component carriers acquired by the non-contention mode is not greater than the maximum number of component carriers; Independent management of component carriers, mode b concentrates on resources occupied by the competition signal or channel, improves resource utilization efficiency, and mode c achieves the combination of competition mode and scheduling mode, which can obtain the advantages of both and improve resource efficiency. Optionally, after the system competes for resources, the system can determine how the resources are used.
- the method for using the corresponding resource specifically includes the following: the base station broadcasts time domain location information of the discontinuous time domain resource; The physical resource is virtualized as a contiguous resource, and the resource is used according to the working mode of the contiguous resource; the base station uses the resource in a time division duplex mode, and configures the non-competing resource as an uplink subframe; The working mode uses the resources, and the resources that the base station does not compete with define a zero power (Muting) subframe or an empty subframe.
- the base station broadcasts time domain location information of the discontinuous time domain resource
- the physical resource is virtualized as a contiguous resource, and the resource is used according to the working mode of the contiguous resource
- the base station uses the resource in a time division duplex mode, and configures the non-competing resource as an uplink subframe
- the working mode uses the resources, and the resources that the base station does not compete with define a zero power (Muting) subframe or an empty subframe.
- the HARQ timing of the physical shared channel may be redefined according to the contending resources, so that when the base station or the terminal sends data, resources are available, and the adaptive timing may also be adopted according to the existing timing.
- the way to wait or suspend waiting, BP When the resource is unavailable, it waits to send to the next available resource, and the corresponding receiver is not receiving when the current resource is unavailable, waiting for the next available resource. receive.
- the system bandwidth management may further include: pre-defining the system bandwidth and the frequency of the system.
- the system bandwidth and the frequency of the system may not be arbitrarily defined. change.
- the number of component carriers can be preferentially determined by considering the system bandwidth corresponding to the component carrier, or the system bandwidth corresponding to the component carrier can be prioritized and the number of component carriers can be considered.
- the predefined system bandwidth may include one of the following modes: (1) The system bandwidth is a predefined value, which may be 20 MHz, 10 MHz, 5 MHz, BP: All systems are uniformly defined according to 20M, or 20M The basic resource unit is divided into two 10M, or four 5M, etc., in each basic resource unit. (2) Determine the predefined value according to the available spectrum size of the frequency band in which it is located, for example: 2G spectrum adopts a predefined 5M spectrum, 3G spectrum adopts 20M spectrum; or, when the available spectrum is 7M, according to 5M Pre-defined, when the available spectrum is 12M, according to 10M reservation, when the available spectrum is 35M, it is defined according to 20M+10M, where 5M is the reserved protection band.
- the system bandwidth is a predefined value, which may be 20 MHz, 10 MHz, 5 MHz, BP: All systems are uniformly defined according to 20M, or 20M
- the basic resource unit is divided into two 10M, or four 5M, etc., in
- FIG. 2 is a schematic structural diagram of a determining apparatus 200 for a radio resource according to an embodiment of the present invention. As shown in FIG. 2, the apparatus for determining a radio resource according to an embodiment of the present invention mainly includes: an obtaining module 202 and a first determining module 204.
- connection relationship of the respective modules shown in Fig. 2 is merely an example, and those skilled in the art can fully adopt other connection relationships as long as each module can implement the functions of the present invention under such a connection relationship.
- the functions of the respective modules can be realized by using dedicated hardware or hardware capable of performing processing in combination with appropriate software.
- Such hardware or special purpose hardware may include application specific integrated circuits (ASICs), various other circuits, various processors, and the like.
- ASICs application specific integrated circuits
- processors When implemented by a processor, this functionality may be provided by a single dedicated processor, a single shared processor, or multiple independent processors, some of which may be shared.
- a processor should not be understood to refer to hardware capable of executing software, but may implicitly include, without limitation, digital signal processor (DSP) hardware, read-only memory (ROM) for storing software, random Access memory (RAM), and non-volatile storage devices.
- DSP digital signal processor
- ROM read-only memory
- RAM random Access memory
- the obtaining module 202 is configured to obtain predefined information, where the predefined information includes indication information of a dedicated node, and/or a measurement value of a component carrier on a multi-system shared spectrum, where The indication information includes: a maximum component carrier quantity information in a multi-system shared spectrum that the system can use, the measurement value is obtained according to a predetermined signal on the component carrier; and the first determining module 204 is configured to determine according to the predefined information.
- the predefined information includes the measured value of the component carrier on the multi-system shared spectrum
- the first determining module 204 is configured to select the number of carriers to be used on the premise that the first pre-defined principle is met; wherein the first pre-defined principle specifically includes: the maximum number of carriers used by the system cannot exceed
- the apparatus 200 may further include: a release module 206, where the number of component carriers whose measured value is less than a threshold is H, and the number of component carriers currently used by the system is greater than H , release the occupied wireless resources.
- the releasing module 206 is configured to release part of the occupied radio resources at a time, such that the number of component carriers that are aggregated after release is less than or equal to H, or the number of component carriers that are released is at least one.
- the H is 0 or the H is less than or equal to the predefined value N
- the maximum number of component carriers used by the system is N or k, where N, k are positive integers, and k is less than N.
- N is 1 or 2 or 3.
- the obtaining module 202 is configured to, when the predetermined time arrives, schedule the component carriers on the multi-system shared spectrum.
- the signal is measured to obtain measurements of respective component carriers on the multi-system shared spectrum.
- the predetermined time includes one of: a time selected by the system within a predetermined time period; a time when the predetermined measurement period arrives; and a time when the system performance reaches a predetermined value.
- the obtaining module 202 may obtain, by using one of the following methods, a measurement value of a component carrier on a multi-system shared spectrum: determining a measurement value of the corresponding component carrier according to the measured interference signal strength on each of the component carriers; The measured signal strength measured on the component carrier determines a measured value of the corresponding component carrier; and the measured value of the corresponding component carrier is determined according to a ratio of the known signal strength measured on each of the component carriers to the interference signal strength.
- the device further includes: a second determining module, configured to: when the predefined information includes the measurement value of the component carrier on the multi-system shared spectrum, determine the system according to the measured value of each component carrier The component carrier used.
- the second determining module is configured to perform carrier aggregation according to the measured value from small to large. If the system can only use resources of one component carrier, select a component carrier with the smallest measured value, or select any One component carrier, or the component carrier with the largest measured value.
- the apparatus further includes: a contention module, configured to acquire resources on a component carrier of the multi-system shared spectrum that is not greater than the maximum number of component carriers in a contention manner.
- the apparatus further includes: a scheduling module, configured to allocate the contending resources to the user equipment by using a scheduling manner.
- the contention module may acquire resources in one of the following manners: competing for resources on the respective component carriers according to the contention signals or channels on the respective component carriers, where the number of the competing component carriers is not greater than the maximum number of component carriers. If the component carriers corresponding to the multi-system shared spectrum are divided into at least two types, one is a carrier for transmitting a contention signal or a channel, and the other is a component carrier for data transmission by contention, and is used for transmission.
- the carrier of the contention signal or channel acquires a contention signal or channel, and then contends for resources on the component carrier used for data transmission through the acquired contention signal or channel, wherein the acquired content of the contention carrier or the component carrier of the channel and the transmitted data
- the sum of the number of component carriers is not greater than the maximum number of component carriers; if the multi-system shared spectrum corresponds to classify the component carriers into at least two types, one is a component carrier obtained through a competitive manner, and the other is a non-competition
- the component carrier obtained by the mode is based on the component carrier type. Given component corresponding carrier acquisition mode, wherein the number of component carriers obtained by competitive manner obtained by a non-competitive manner, and the number of component carriers is not greater than the maximum number of component carriers.
- the apparatus may further include: a third determining module, configured to determine a usage manner of the resource according to the acquired resource. If the contending physical resource is a non-contiguous time domain resource, the usage manner of the resource determined by the third determining module includes at least one of the following: the base station virtualizes the discontinuous physical resource into a continuous resource, according to The system uses the resource in a working mode of the continuous resource; the base station uses the resource in a time division duplex mode, and configures the non-competing resource as an uplink subframe; the base station uses the resource according to the working mode of the continuous resource, the base station A resource that does not compete is defined as a zero power subframe or an empty subframe.
- a third determining module configured to determine a usage manner of the resource according to the acquired resource. If the contending physical resource is a non-contiguous time domain resource, the usage manner of the resource determined by the third determining module includes at least one of the following: the base station virtualizes the discontinuous physical resource into a continuous resource,
- the base station broadcasts time domain location information of the discontinuous time domain resource.
- the device further includes: a HARQ timing processing module, configured to perform automatic hybrid retransmission request HARQ timing on the physical shared channel, and redefine according to the contending resources, so that resources are available when the base station or the terminal sends data. , or according to the existing timing, in an adaptive manner or pending waiting.
- the device further includes: a setting module configured to set a system bandwidth and a frequency point of the system, wherein different systems are aligned at a frequency point of the same frequency spectrum.
- the setting module is configured to set a system bandwidth corresponding to the component carrier on the premise of ensuring the number of component carriers used by the system; or, before determining the number of component carriers used by the system, The system bandwidth corresponding to the component carrier.
- the setting module is configured to set the system bandwidth to a preset value, where the preset value includes: 20 MHz, 10 MHz, or 5 MHz; or, according to a frequency band in which the system is located, The spectrum size determines the preset value; or, the system bandwidth is set in such a manner that the available spectrum size can define as many component carriers as possible.
- FIG. 4 is a flowchart of a method 400 for acquiring a radio resource according to an embodiment of the present invention.
- the method mainly includes step S402.
- step S402 the system acquires resources on the component carriers of the multi-system shared spectrum in a competitive manner.
- different systems acquire resources in a competitive manner, so that systems with stronger mutual interference can be avoided to use the spectrum resources at the same time.
- the method 400 may further include: the system allocates the contending resources to the user equipment by using a scheduling manner, for receiving data or transmitting data; or, in the embodiment of the invention, different base stations may also be used.
- the user equipment is regarded as a general node, and each node adopts a D2D competition mode to acquire resources on the spectrum. Therefore, the method further includes: the user equipment acquires resources on the shared spectrum of the multiple systems according to system scheduling information, or the user equipment acquires resources on the shared spectrum of the multiple systems by using a contention manner.
- acquiring resources in a contention manner may include one of the following modes: mode a: competing resources on respective component carriers according to contention signals or channels on respective component carriers; mode b: if multiple systems share
- the component carriers corresponding to the spectrum are divided into at least two types, one is a carrier for transmitting a contention signal or a channel, and the other is a component carrier for data transmission by contention, and the system is in use.
- Mode C Obtaining a contention signal or channel on a carrier transmitting a contention signal or a channel, and competing for resources on a component carrier used for data transmission through the acquired contention signal or channel;
- Mode C dividing the component carrier into at least the corresponding component corresponding to the multi-system shared spectrum Two types, one is a component carrier obtained through a competitive method, and the other is a component carrier obtained by a non-contention method, the system determines a corresponding component carrier acquisition mode according to the component carrier type; mode a can realize independent management of each component carrier Mode b concentrates on the resources occupied by the competition signal or channel to improve the efficiency of resource utilization.
- the mode c combines the competition mode and the scheduling mode to obtain the advantages of both and improve resource efficiency.
- the resources acquired in a contention manner include: a resource that sends a contention signal or a channel.
- the resources acquired in a competitive manner may further include: resources for competing for conflict resolution or resources for competing resource confirmation.
- the system acquires the resource on the component carrier of the multi-system shared spectrum in a competitive manner, including: the system sends the system to send the system on the selected contention acknowledgment resource corresponding to the resource that transmits the contention signal or the channel. a signal that is audible on a resource of a competition signal or channel; the system confirms whether it contends to a corresponding resource by a signal received by each system sent by another system received on the contention confirmation resource, wherein The data transmission format on the competition confirmation resource is fixed or corresponds to the competition signal.
- step S404 the system can also determine the manner in which the resources are used.
- the system determines that the usage mode of the resource may include at least one of the following: a base station broadcasts time domain location information of the discontinuous time domain resource;
- the non-contiguous physical resource is virtualized as a continuous resource, and the resource is used in the working mode of the continuous resource according to the system;
- the base station uses the resource in a time division duplex mode, and configures the non-competing resource as an uplink subframe;
- the resources that the base station does not compete with are defined as zero power (Muting) subframes or null subframes.
- the HARQ timing of the physical shared channel may be redefined according to the contending resources, so that when the base station or the terminal sends data, resources are available, and the adaptive timing may also be adopted according to the existing timing.
- the way to wait or suspend waiting ie: When the resource is unavailable, it waits to send to the next available resource, and the corresponding receiver is not receiving when the current resource is unavailable, waiting for the next available resource. receive.
- a wireless resource acquiring apparatus 500 is further provided.
- the obtaining device 500 can be used to implement the wireless resource acquiring method 400 described above.
- the device mainly includes: an obtaining module 502, configured to acquire, on a component carrier of a multi-system shared spectrum by a contention method. Resources.
- the apparatus 500 may further include: an allocating module 504, configured to allocate the contending resources to the user equipment by using a scheduling manner.
- the obtaining module 502 may acquire resources on the component carriers of the multi-system shared spectrum by using one of the following ways: the system competes for resources on the respective component carriers according to the contention signals or channels on the respective component carriers; if the multiple systems share The component carriers corresponding to the spectrum are divided into at least two types, one is a carrier set to transmit a contention signal or a channel, and the other is a component carrier set to be a data transmission by contention, and then acquired in a carrier set to transmit a contention signal or channel.
- Competing signals or channels and then set the resources on the component carriers of the data transmission by the obtained contention signals or channel competition; if the multi-system shared spectrum corresponds to classifying the component carriers into at least two types, one type is obtained through competition
- the component carrier is a component carrier obtained by non-contention mode, and the corresponding component carrier acquisition mode is determined according to the component carrier type.
- the resources acquired in a contention manner include: a resource that sends a contention signal or a channel.
- the resources acquired in a competitive manner may further include: resources for competing for conflict resolution or resources for competing resource confirmation.
- the obtaining module 502 may include: a sending module, configured to send, on a contention acknowledgment resource corresponding to the selected resource that sends the contention signal or the channel, a signal that is monitored by the system on the resource that sends the contention signal or the channel; And determining, by the signals received by the systems sent by the other systems received on the contention confirmation resource, whether the user competes with the corresponding resource, where the data transmission format on the contention confirmation resource is fixed or The competition signal corresponds.
- the apparatus 500 may further include: a determining module 506, configured to determine a usage manner of the resource according to the resource acquired by the acquiring module 502.
- the usage mode of the resource determined by the determining module 506 includes at least one of the following: the base station broadcasts time domain location information of the discontinuous time domain resource; The base station virtualizes the discontinuous physical resource into a continuous resource, and uses the resource according to the working mode of the continuous resource in the system; the base station uses the resource in a time division duplex mode, and configures the non-competing resource as an uplink subframe; The system uses the resources in a working mode of continuous resources, and the base station defines resources that are not competing as zero power subframes or null subframes.
- the apparatus may further include: a HARQ timing processing module, configured to perform automatic hybrid retransmission request HARQ timing on the physical shared channel, and redefine according to the contention of the competition, so that the base station or the terminal has resources when transmitting data. Available, or based on existing timing, in an adaptive manner or pending wait.
- a HARQ timing processing module configured to perform automatic hybrid retransmission request HARQ timing on the physical shared channel, and redefine according to the contention of the competition, so that the base station or the terminal has resources when transmitting data. Available, or based on existing timing, in an adaptive manner or pending wait.
- the device for acquiring a radio resource according to the embodiment of the present invention has an implementation manner corresponding to all the optional implementation manners of the foregoing method for acquiring a radio resource, and details are not repeatedly described herein.
- an LTE system is taken as an example for description.
- the LTE system When the LTE system is applied to the spectrum shared by multiple systems, the main problem is the interference between the LTE systems between different operators, and the interference between the LTE system and the wifi system.
- Embodiment 1 the LTE system is applied to an unlicensed spectrum or an authorized spectrum.
- the resource acquisition method of the LTE system acquires resources in units of carriers, and combines interference measurement with carrier aggregation (release) to solve inter-system interference problems and improve spectrum usage efficiency.
- the method for acquiring a resource specifically includes: determining, according to the measured value, a maximum number of carriers used by the system.
- the method may include: assuming that the number of carriers whose measured value is less than the threshold is H, if the number of currently used carriers is less than H, and ij, the number of carriers used may be selected if the first predefined principle is met;
- a pre-defined principle specifically includes: the maximum number of carriers used by the system cannot exceed H; if the H is 0 or the H is less than or equal to a predefined value N, the maximum number of carriers used by the system is N or k, N, k is a positive integer, k is less than N; N is a value of 1 or 2 or 3. If the number of carriers currently used by the system is greater than H, it is necessary to release the occupied radio resources.
- the system performs the above measurement once in a certain period of time; wherein, the measurement time of each system can be selected autonomously within a certain range, or can be measured according to a certain period, or triggered measurement according to system performance, reference The performance includes at least one of the following: CQI reported by the terminal, probability of data retransmission, interference measured by the uplink signal, RSRP or RSRQ, RNTP, interference detected by the base station, and the like.
- the range of the measurement time is limited to ensure that each system must perform measurement, thereby avoiding the constant possession of resources. In this embodiment, if the number of carriers currently aggregated by the system is greater than H, the ij ij needs to release the occupied radio resources.
- the radio resources when the occupied radio resources are released, the radio resources can be released at one time, so that the number of carriers aggregated after being released is less than or equal to H, or the number of released carriers must be at least 1 or greater, and the number of carriers aggregated after release. Can be greater than H. If it is not a one-time release, the measurement time interval is shortened until the number of carriers that satisfy the aggregation is less than or equal to 11.
- the value of H may be a predefined value, or may be changed with time or transmission conditions or measured values. In this way, the measured time interval can be redefined after the number of aggregated carriers is met.
- the time interval for shortening the measurement may be proportionally shortened, for example, each time shortening by 1/2 of the last interval time until shortening to a minimum unit of measurement time (for example, 1 millisecond), or , decreasing by a predefined value.
- the component carrier with a large measured value such as a component carrier with strong interference
- one component carrier may be arbitrarily selected to be released; optionally, if the number of currently aggregated carriers is less than H, the number of aggregated carriers can be further expanded or reduced as needed, while satisfying the above limitations.
- the measured value may be determined according to the measured interference signal strength, or the measured value is determined according to the measured known signal strength, or the measured value is measured according to the known signal strength and interference.
- the signal strength ratio is determined.
- the measured values are measured in units of component carriers. The following examples are described.
- Example 1 In this example, the number of currently available component carriers (subchannels/serving cells) is four, and the number of carriers whose current measured value is less than the threshold is 4. In this case, the system can be arbitrarily selected according to actual application requirements in four component carriers. Select the component carrier to use.
- Example 2 In this example, the number of currently available component carriers (subchannels/serving cells) is five, and the number of carriers whose current measured value is less than the threshold is three.
- the number of component carriers currently used by the system is one, and the system can The component carriers used are arbitrarily selected according to actual application requirements within the three component carriers.
- Example 3 In this example, the number of currently available component carriers (subchannels/serving cells) is three, and the number of carriers whose current measured value is less than the threshold is 0. At this time, the number of component carriers currently used by the system is three, and the system needs Release the used resources, release 2 component carriers, or release 1 component carrier, and release 1 component carrier when the next measurement still does not meet the demand.
- the limitation of the above system carrier aggregation may be used for the base station.
- the base station determines the number of component carriers used for UE access according to the measured value, and the base station transmits the downlink data and the downlink signal only on the component carriers that can be used. If the base station can reduce the interference by the multi-antenna (directional antenna, directional beam, etc.) technology and ignore the interference of the public signal or the public channel, the above limitation can also be used for the terminal, and the base station mainly configures the UE according to the measured value measured by the UE.
- the number of component carriers may further include: determining an aggregated carrier according to the measured value.
- the method may include: performing carrier aggregation according to the measured value from small to large. If only one component carrier resource can be used, the component carrier with the smallest measured value may be selected, or one component carrier may be arbitrarily selected, or the measured value may be selected. The largest component carrier.
- the carrier aggregation is performed, when the resources on the aggregated carrier are used, since the time domain resources are continuous, the existing resource usage mode may be applied, and a new resource mode may be introduced by applying future system evolution. If the measured value represents the degree of interference, when each carrier is in strong interference, the newly opened system or the opened system needs to be avoided, reducing the number of component carriers used, such as: using only one component carrier, thereby reducing itself Interference is generated to reduce interference with other systems.
- the above method can reduce interference between systems on the unlicensed spectrum. At the same time, avoiding the problem that a system always monopolizes resources without release, so that both the first boot system and the post boot system have the same rights, and the fairness of resource use is guaranteed.
- Embodiment 2 the LTE system is applied to an unlicensed spectrum or an authorized spectrum.
- the resource acquisition method of the LTE system solves the interference problem between systems in a resource competition manner, thereby improving the spectrum use efficiency.
- the method specifically includes: the different systems acquire resources in a competitive manner, and the system allocates the competing resources to the user equipment by using a scheduling manner, for receiving data or sending data.
- the obtaining the resource in a competitive manner specifically includes: competing for resources on a component carrier on which the component is located according to a contention signal or a channel.
- the contention mode may adopt a D2D competition mode, or a competition mode in wifi, where the contention resources represented by the contention signal or channel need to be redefined.
- resources on one component carrier are divided into at least two parts, one part is used for competing related resources, and the other part is used for competing resources corresponding to contention channels or contention channels for data transmission.
- the contention related resource includes: a resource for transmitting a contention signal or a channel; and may further include: a resource for competing for conflict resolution or a resource for competing resource confirmation.
- the system sends a signal that is monitored by the system on the contention resource on the queried resource corresponding to the selected contention signal or the channel, and the system sends the system by using other systems received on the acknowledgment resource.
- the signal that is being monitored confirms whether it is competing for the corresponding resource. For example, other systems only monitor the signal or channel of the system when the system selects a contention signal or channel, which proves that the competition is successful. If other systems also monitor signals or channels of other systems, the system may choose to abandon the last competing resources and re-competition according to the situation of the interception; or, still use the competing resources to send subsequent data (this scenario is equivalent to interference). But not serious).
- the data transmission format on the confirmation resource is fixed or corresponds to the competition signal.
- the system determines other system monitoring conditions according to information sent by other systems on the acknowledgment resource; for example, an index of signals monitored by other systems, or using 0 or 1 to indicate whether the number of signals to be monitored is equal to one or the like.
- the contention channel can carry system information. The following describes the specific examples. Example 1 In this example, it is assumed that there are k competing resources that can be selected. System A selects hi to compete for resources to send a contention signal or channel, and listens to other systems' competing signals or channels on other competing resources (partially or completely), if not listening. To the competition signal or channel, it means that only the system is working, or other systems use the same competitive signal or channel as the system.
- the system A may send data on the data resource corresponding to the contention resource hi; or, the system A may select, on the data resources corresponding to the multiple contention resources (eg, tl, t2, t3) among the k competing resources. Send data (sent on tl, one on t2, one on t3); or, system A listens to signals or channels sent by other systems in the acknowledgment resource, and selects one in the acknowledgment resource. Confirming that the resource sends a signal or channel corresponding to the system.
- the multiple contention resources eg, tl, t2, t3
- Send data sent on tl, one on t2, one on t3
- system A listens to signals or channels sent by other systems in the acknowledgment resource, and selects one in the acknowledgment resource. Confirming that the resource sends a signal or channel corresponding to the system.
- system A may send data on the data resource corresponding to the contention resource hi (including the above in a single If the content of the other system is monitored in the acknowledgment resource, the data resource corresponding to the other contending resource h2 is selected according to the predefined priority criterion.
- the priority criterion may be determined according to an index of the acknowledgment resource, or may be determined according to the monitored information.
- Example 2 it is assumed that there are k competing resources that can be selected. System A selects the competing resource hi to send a contention signal or channel, and listens to other systems' competing signals or channels on other competing resources (partially or completely), if listening To other competing signals or channels means that the system is still working.
- System A monitors the signal or channel sent by other systems in the acknowledgment resource, and selects the acknowledgment resource corresponding to the contending resource hi in the acknowledgment resource to send the signal or channel corresponding to the system. If system A does not listen to other systems in the acknowledgment resource. The information, the system A, sends data on the data resource corresponding to the contention resource hi. If system A listens to the information of other systems in the confirmation resource, it determines whether there is another system and system A conflicts on the competition resource hi according to other system information. If a conflict occurs, it is monitored according to the confirmation resource. To the information of other systems, the system A determines whether to send data on the data resource corresponding to the contention resource hi, or discards the resource and re-competes the resource.
- the system information with the highest priority may be selected according to the predefined priority.
- the data transmission resource may be The time slot/subframe/radio frame, and/or resource block/resource block group is divided into resource group divisions, and one contention signal or channel corresponds to one resource group.
- the resources that can be used by the system are determined by the different operators or different system systems through the contention signal or channel, and data is transmitted to the UE on the resources, and the UE is scheduled to transmit data to the base station on the corresponding resource.
- the resource usage mode may include at least one of the following: the base station broadcasts time domain location information of the discontinuous time domain resource;
- the discontinuous physical resources are virtualized as continuous resources, and the resources are used according to the way the system works in continuous resources;
- the base station uses the resource in a time division duplex mode to configure an uplink subframe for the non-competitive resource; at this time, as long as the data transmission is not scheduled on the non-competitive resource, the UE can be transparent;
- the system uses the resources in a working mode of continuous resources, and the base station configures the resources that are not competing into a zero-power (Muting) subframe; so that the UE can perform measurement in categories, such as: no competition to resource measurement and competition to resources.
- the UE can perform data transmission and reception according to the available resources according to the new HARQ timing.
- the HARQ timing of the physical shared channel may be redefined according to the contending resources, so that when the base station or the terminal sends data, resources are available, or may be adaptive or suspended according to the existing timing. Waiting mode processing, that is: When the resource is unavailable, it waits to send to the next available resource, and the corresponding receiver is not received when the current resource is unavailable, and waits until the next available resource is received.
- the LTE system is applied to an unlicensed spectrum or a licensed spectrum.
- the resource acquisition method in this embodiment includes: treating a base station and a terminal of different systems as a general node, and acquiring a resource on the spectrum by using a D2D competition mode.
- each node competes for resources on its component carrier according to a contention signal or channel.
- the base station can send signals and system information on the contending resources for the UE to access.
- the UE can independently detect the signal and system information sent by the base station on one or more component carriers, and can independently select one base station to access, or can select A plurality of base stations are connected to perform data transmission.
- the UE also obtains resources in a contention manner and sends data to the base station.
- the LTE system is applied to the unlicensed spectrum, the resource acquisition method of the system, and the interference problem between the systems is solved in a resource competition manner, thereby improving the spectrum use efficiency.
- the base station and the terminal of the different systems are regarded as a general node, and the D2D competition mode is used to acquire resources on the spectrum.
- the component carriers are divided into at least two types, one class. It is a carrier used to transmit a contention signal or channel, and a class is a component carrier for data transmission by contention.
- resources on a part of component carriers are used in a scheduling manner, for example, by granting spectrum unlicensed spectrum resources for data transmission; or, resources on a part of component carriers are determined according to contention signals or channels on other component carriers.
- the competing resources corresponding to the contention signal or channel are no longer only resources of the present component carrier, but also resources on other component carriers.
- the LTE system can be used in the unlicensed spectrum or the licensed spectrum. In this embodiment, the LTE system is applied to the unlicensed spectrum or the licensed spectrum. In this embodiment, the LTE system is applied to the unlicensed spectrum or the licensed spectrum. The way of resource competition solves the problem of interference between systems and improves the efficiency of spectrum use.
- different systems acquire resources in a competitive manner, and the system allocates the competing resources to the user equipment in a scheduling manner for receiving data or transmitting data.
- the system acquires resources in a competitive manner, it competes for resources on its component carrier according to the contention signal or channel.
- the component carriers are divided into at least two types, one is a carrier for transmitting a contention signal or a channel, and the other is a component carrier for data transmission by contention.
- Each base station acquires a component carrier that can be used by a contention signal or channel on at least one component carrier.
- Different carrier or different system systems determine the component carriers that can be used by the system through the contention signal or channel, and transmit data to the UE on these resources, and schedule the UE to transmit data to the base station on the corresponding resource.
- the foregoing method for competing resources in the embodiment can prevent the system with strong mutual interference from using the spectrum resource at the same time.
- Embodiment 6 the method 100 for determining the radio resource is combined with the method 400 for acquiring the radio resource.
- the system first selects the aggregated carrier according to the measured value, and then acquires the resource in a competitive manner on the selected aggregated carrier.
- the base station first determines the maximum number of carriers that can be aggregated according to the measured value, and then determines the number of carriers to be aggregated according to the requirements, and selects a component carrier to be used for competing resources according to the measured value, and the other base stations or The UE competes for resources and transmits data on the acquired resources.
- Embodiment 7 In this embodiment, the LTE system is applied to an unlicensed spectrum.
- This embodiment describes a system bandwidth management manner provided by an embodiment of the present invention.
- the system bandwidth and the frequency of the system are predefined and cannot be arbitrarily changed.
- the system bandwidth can be defined in the following two ways: Mode 1: The number of component carriers is considered after satisfying the premise of increasing the system bandwidth corresponding to the component carrier.
- the system bandwidth is a predefined value of 20M
- BP All systems are defined in accordance with 20M. This ensures that the system's center frequency is the same when different operators' systems work on the same spectrum, thus ensuring the orthogonality of the corresponding sequences, such as: synchronization signal sequence, reference signal sequence, And interference coordination in the frequency domain. Since there are many cases of available spectrum, the available spectrum of different frequency bands is also different. Consider the guard interval between component carriers that need to be reserved. In some scenarios, the available resource size is not an integer multiple of 20M. In this case, according to the remaining resources. The size of the system can also be considered to define a system bandwidth of less than 20M.
- the orthogonality of the sequences between different systems is not considered, and the interference randomization is used.
- the system only needs to meet specific access requirements.
- the central frequency point meets the multiple of 300 kHz.
- the system is selected autonomously. Bandwidth and system center frequency location. Manner 2: When the number of certain component carriers is met, the system bandwidth corresponding to the component carrier is increased as much as possible to obtain more component carriers for interference control. The number of component carriers can be defined as much as possible according to the available spectrum size. The number of carriers is balanced.
- the system bandwidth corresponding to the component carrier is increased as much as possible.
- the system bandwidth is increased by at least two component carriers.
- 20M is defined as two 10MHz component carriers
- 40M defines two 20MHz component carriers
- 100MHz defines five 20MHz component carriers; for example, at least 3
- the system bandwidth is increased under the premise of the number of component carriers.
- 20M is defined as four 5MHz component carriers
- 40M defines five 10MHz component carriers
- 100MHz defines five 20MHz component carriers.
- modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
- the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
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Abstract
本发明公开了一种无线资源确定、获取方法及装置。其中,该无线资源确定方法包括:获取预定义信息,其中,上述预定义信息包括专有节点的指示信息,和/或,多系统共用频谱上分量载波的测量值,其中,上述指示信息包括:系统能够使用的多系统共用频谱中的最大分量载波数量信息,上述测量值根据分量载波上的预定信号获取;根据上述预定义信息确定系统能够使用的多系统共用频谱中的最大分量载波数量。通过本发明,可以解决系统间的干扰问题,提高频谱的使用效率。
Description
无线资源确定、 获取方法及装置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种无线资源确定、 获取方法及装置。 背景技术 在无线蜂窝通信系统中, 基站 (evolved Node B, e B或 Base Station, BS) 是为 用户设备 (User Equipment, UE), 也可称为终端 (terminal), 提供无线接入的设备, 基站与用户设备之间通过电磁波进行无线通信。 一个基站可能提供一个或多个服务小 区, 无线通信系统通过服务小区可以为一定地理范围内的终端提供无线覆盖。 频谱资源可以划分为授权频谱和免授权频谱, 以及专用频谱, 例如: wifi 系统工 作在免授权频谱,广播电视所使用的专有频谱, 以及各电信运营商所购买的授权频谱。 为了更好的利用频谱资源, 提高频谱使用效率, 以及提高数据传输的吞吐量, 更多的 系统将在免授权频谱上工作, 如: LTE系统及 HSPA系统等。 不同系制式统以及不同 运营商的无线通信系统在免授权频谱上同时工作将导致相互干扰问题, 目前尚未提出 有效的解决方案。 发明内容 针对不同系制式统以及不同运营商的无线通信系统在免授权频谱上同时工作将导 致相互干扰问题的问题, 本发明提供了一种无线资源的确定、 获取方法和装置, 以至 少解决上述问题。 根据本发明的一个方面, 提供了一种无线资源的确定方法, 包括: 获取预定义信 息, 其中, 所述预定义信息包括专有节点的指示信息, 和 /或, 多系统共用频谱上分量 载波的测量值, 其中, 所述指示信息包括: 系统能够使用的多系统共用频谱中的最大 分量载波数量信息, 所述测量值根据所述分量载波上的预定信号获取; 根据所述预定 义信息确定所述系统能够使用的所述多系统共用频谱中的最大分量载波数量。 优选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 根 据预定义信息确定系统能够使用所述多系统共用频谱的最大分量载波数量, 包括: 如 果所述测量值小于阈值的分量载波数量为 H, 且所述系统当前使用的分量载波数量小
于 H, 则在满足第一种预定义原则前提下, 选择所述系统使用的分量载波数量; 其中, 所述第一种预定义原则包括: 所述系统使用的最大分量载波数量不能超过11。 优选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 如 果所述测量值小于阈值的分量载波数量为 H, 且所述系统当前使用的分量载波数量大 于 H, 则所述方法还包括: 所述系统释放已占有的无线资源。 优选地, 所述系统释放已占有的无线资源, 包括: 所述系统一次性释放已占有的 部分无线资源, 使得释放后聚合的分量载波数量小于等于 H, 或者, 释放的分量载波 数量至少大于等于 1。 优选地, 如果所述 H为 0或者所述 H小于等于预定义值 N, 则所述系统使用的最 大分量载波数量为 N或 k, 其中, N、 k为正整数, k小于 N。 优选地, N为 1或 2或 3。 优选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 获 取预定义信息包括: 所述系统在预定时间到达时, 对所述多系统共用频谱上的各个分 量载波的预定信号进行测量, 获取所述多系统共用频谱上的各个分量载波的测量值。 优选地, 所述预定时间包括以下之一: 所述系统在预定时间段内选择的时间; 预 定测量周期到达的时间; 系统性能达到预定值的时间。 优选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 获 取预定义信息包括以下之一: 根据各个所述分量载波上测量到的干扰信号强度确定对 应分量载波的测量值; 根据各个所述分量载波上测量到的已知信号强度确定对应分量 载波的测量值; 根据各个所述分量载波上测量到的已知信号强度与干扰信号强度的比 值, 确定对应分量载波的测量值。 优选地, 在所述预定义信息包括多系统共用频谱上分量载波的测量值时, 在根据 预定义信息确定系统能够使用的所述多系统共用频谱中的最大分量载波数量之后, 所 述方法还包括: 根据各个所述分量载波的测量值确定所述系统使用的分量载波。 优选地, 根据各个所述分量载波的测量值确定所述系统使用的分量载波包括: 按 照所述测量值从小到大的顺序进行载波聚合, 如果所述系统只能使用一个分量载波的 资源, 则选择测量值最小的分量载波, 或者, 选择任意一个分量载波, 或者, 选泽测 量值最大的分量载波。
优选地, 根据预定义信息确定系统能够使用的所述多系统共用频谱中的最大分量 载波数量之后, 所述方法还包括: 所述系统采用竞争的方式在所述多系统共用频谱的 不大于所述最大分量载波数量的分量载波上获取资源。 优选地, 在所述系统采用竞争的方式在所述多系统共用频谱的不大于所述最大分 量载波数量的分量载波上获取资源之后, 所述方法还包括: 所述系统将竞争到的资源 通过调度的方式分配用户设备。 优选地, 所述方法还包括: 用户设备根据系统调度信息在所述多系统共用频谱上 获取资源, 或者, 用户设备通过竞争方式, 在所述多系统共用频谱上获取资源。 优选地, 所述系统采用竞争的方式在所述多系统共用频谱的不大于所述最大分量 载波数量的分量载波上获取资源, 包括以下之一: 所述系统根据各自分量载波上竞争 信号或信道来竞争各自分量载波上的资源, 其中, 所述系统竞争到的分量载波的数量 不大于所述最大分量载波数量; 如果所述多系统共用频谱对应的分量载波至少划分为 两类, 一类是用于传输竞争信号或信道的载波, 一类是通过竞争获取用于数据传输的 分量载波, 则所述系统在用于传输竞争信号或信道的载波获取竞争信号或信道, 再通 过获取的竞争信号或信道竞争用于数据传输的分量载波上的资源, 其中, 所述系统获 取的传输竞争信号或信道的分量载波的数量与传输数据的分量载波的数量之和不大于 所述最大分量载波数量;如果所述多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过竞争方式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 则所 述系统根据分量载波类型确定相应的分量载波获取方式, 其中, 所述系统通过竞争方 式获取的分量载波数量与通过非竞争方式获取的分量载波数量之和不大于所述最大分 量载波数量。 优选地, 所述系统采用竞争的方式在所述多系统共用频谱的不大于所述最大分量 载波数量的分量载波上获取资源之后, 所述方法还包括: 所述系统根据获取的资源确 定所述资源的使用方式。 优选地, 所述系统根据获取的资源确定所述资源的使用方式包括: 如果所述竞争 到的资源为不连续的时域资源时, 所述资源的使用方式包括以下至少之一: 基站将不 连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方式使用所述资源; 基 站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行子帧; 按照系 统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源定义为零功率子帧 或空子帧; 基站广播所述不连续时域资源的时域位置信息。
优选地, 所述方法还包括: 对物理共享信道的自动混合重传请求 HARQ定时, 根 据竞争到的资源重新定义, 使得当基站或终端发送数据时都有资源可用, 或者根据已 有的定时, 采用自适应的方式或挂起等待的方式处理。 优选地, 所述方法还包括: 设定系统带宽和系统的频点, 其中, 不同系统在相同 频谱的频点对齐。 优选地, 设定系统带宽和系统的频点包括: 在保证所述系统使用的分量载波数量 的前提下, 设定所述分量载波对应的系统带宽; 或者, 确定所述系统使用的分量载波 数量之前, 设定分量载波对应的系统带宽。 优选地, 设定系统带宽包括: 将所述系统带宽设定为预设值; 其中, 所述预设值 包括: 20MHz、 10MHz、 或 5MHz; 或者, 根据所述系统所在的频段的可用频谱大小 确定所述预设值; 或者, 使可用频谱大小能够尽量多的定义分量载波数量的方式设置 所述系统带宽。 根据本发明的另一个方面, 提供了一种无线资源的确定装置, 包括: 获取模块, 设置为获取预定义信息, 其中, 所述预定义信息包括专有节点的指示信息, 和 /或, 多 系统共用频谱上分量载波的测量值, 其中, 所述指示信息包括: 系统能够使用的多系 统共用频谱中的最大分量载波数量信息, 所述测量值根据所述分量载波上的预定信号 获取; 第一确定模块, 设置为根据所述预定义信息确定系统能够使用的所述多系统共 用频谱中的最大分量载波数量。 优选地, 所述装置还包括: 释放模块, 设置为在所述预定义信息包括所述多系统 共用频谱上分量载波的测量值时, 如果所述测量值小于阈值的分量载波数量为 H, 且 所述系统当前使用的分量载波数量大于 H, 释放已占有的无线资源。 优选地, 所述装置还包括: 第二确定模块, 设置为在所述预定义信息包括多系统 共用频谱上分量载波的测量值时, 根据各个所述分量载波的测量值确定所述系统使用 的分量载波。 优选地, 所述装置还包括: 竞争模块, 设置为采用竞争的方式在所述多系统共用 频谱的不大于所述最大分量载波数量的分量载波上获取资源。 根据本发明的又一个方面, 提供了一种无线资源的获取方法, 包括: 系统采用竞 争的方式在多系统共用频谱的分量载波上获取资源。
优选地, 系统采用竞争的方式在多系统共用频谱的分量载波上获取资源之后, 所 述方法还包括: 所述系统将竞争到的资源通过调度的方式分配用户设备。 优选地, 所述方法还包括: 用户设备根据系统调度信息在所述多系统共用频谱上 获取资源, 或者, 用户设备通过竞争方式, 在所述多系统共用频谱上获取资源。 优选地, 系统采用竞争的方式在多系统共用频谱的分量载波上获取资源, 包括以 下之一:所述系统根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资源; 如果所述多系统共用频谱对应的分量载波至少划分为两类, 一类是用于传输竞争信号 或信道的载波, 一类是通过竞争获取用于数据传输的分量载波, 则所述系统在用于传 输竞争信号或信道的载波获取竞争信号或信道, 再通过获取的竞争信号或信道竞争用 于数据传输的分量载波上的资源; 如果所述多系统共用频谱对应的将分量载波至少划 分为两类, 一类是通过竞争方式获取的分量载波, 一类是通过非竞争方式获取的分量 载波, 则所述系统根据分量载波类型确定相应的分量载波获取方式。 优选地, 采用竞争的方式获取的所述资源包括: 发送竞争信号或信道的资源。 优选地, 采用竞争的方式获取的所述资源还包括: 用于竞争冲突解决的资源或竞 争资源确认的资源。 优选地, 系统采用竞争的方式在多系统共用频谱的分量载波上获取资源, 包括: 所述系统在其选择的发送竞争信号或信道的资源对应的竞争确认资源上发送本系统在 所述发送竞争信号或信道的资源上监听到的信号; 所述系统通过在所述竞争确认资源 上接收到的其他系统发出的各系统监听到的信号, 确认自身是否竞争到相应资源。 优选地, 系统采用竞争的方式在多系统共用频谱的分量载波上获取资源之后, 所 述方法还包括: 所述系统根据获取的资源确定所述资源的使用方式。 优选地, 所述系统根据获取的资源确定所述资源的使用方式包括: 如果所述竞争 到的资源为不连续的时域资源时, 所述资源的使用方式包括以下至少之一: 基站广播 所述不连续时域资源的时域位置信息; 基站将不连续的物理资源虚拟为连续资源, 按 照系统在连续资源的工作方式使用所述资源;基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行子帧;按照系统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源定义为零功率子帧或空子帧。
优选地, 所述方法还包括: 对物理共享信道的自动混合重传请求 HARQ定时, 根 据竞争到的资源重新定义, 使得当基站或终端发送数据时都有资源可用, 或者根据已 有的定时, 采用自适应的方式或挂起等待的方式处理。 根据本发明的又一个方面, 提供了一种无线资源的获取装置, 包括: 获取模块, 设置为通过竞争的方式在多系统共用频谱的分量载波上获取资源。 优选地, 所述装置还包括: 分配模块, 设置为将竞争到的资源通过调度的方式分 配用户设备。 优选地, 所述装置还包括: 确定模块, 设置为根据所述获取模块获取的资源确定 所述资源的使用方式。 通过本发明, 通过控制系统使用的载波数量, 解决了系统间的干扰问题, 提高了 频谱的使用效率。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中: 图 1是根据本发明实施例的无线资源的确定方法 100的流程图; 图 2是根据本发明实施例的无线资源的确定装置 200的结构示意图; 图 3是根据本发明实施例的无线资源的确定装置 200的可选结构示意图; 图 4是根据本发明实施例的无线资源的获取方法 400的流程图; 图 5是根据本发明实施例的无线资源的获取装置 500的结构示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 为了满足高级国际电信联盟 (International Telecommunication Union-Advanced, 简 称为 ITU-Advanced)的要求,作为 LTE演进标准的高级长期演进(Long Term Evolution
Advanced, 简称为 LTE- A)系统需要支持更大的系统带宽 (最高可达 100MHz), 并需 要后向兼容 LTE现有的标准。 在现有 LTE系统的基础上, 可以通过将 LTE系统的带 宽进行合并来获得更大的带宽, 这种技术称为载波聚合 (Carrier Aggregation, 简称为 CA)技术。 该技术能够提高 IMT-Advance系统的频谱利用率、 缓解频谱资源紧缺, 进 而优化频谱资源的利用。所述载波聚合的 LTE系统带宽可以看作分量载波(Component Carrier, 简称为 CC), 每个分量载波也可以称为一个服务小区( Serving Cell), 也就是 说一个频谱可以由 n个分量载波 (或服务小区) 聚合而成。 一个 RIO UE的资源由频 域的 n个分量载波(或服务小区)构成,其中,一个服务小区称为主小区(Primary cell) 或主分量载波, 其余服务小区称为辅小区 (Secondary cell) 或辅分量载波。 上述分量载波也可以看作子信道, 每一个分量载波对应一个子信道, 或者, 分量 载波看作一种资源单元。 现有技术中, 对于授权频谱, 系统带宽为各运营商自主规划, 终端通过检测信令 或信号确定, 聚合的最大载波数量跟授权频谱的大小预先定义, 不会存在动态的改变 和限制,授权频谱上的资源都是可用资源,基站根据调度算法分配分量载波相应终端, 基站可以根据需求调整发射功率。 对于某一频谱上可以存在多种系统包括不同制式的系统,如 LTE系统和 wifi系统, LTE系统和 HSPA系统, LTE系统和 GSM系统, LTE系统和 CDMA系统等, 也包括 不同运营商的相同制式系统, 如: 运营商 1的 LTE系统和运营商 2的 LTE系统等。则 将面临的不同运营商之间 LTE系统之间的干扰问题, 以及 LTE系统和 wifi系统等异 系统之间的干扰问题。 针对该问题, 本发明实施例提供了一种无线资源的确定方法。 图 1为根据本发明实施例的无线资源的确定方法 100的流程图, 如图 1所示, 该 确定方法 100主要包括步骤 S102和步骤 S104。其中, 在步骤 S102中, 获取预定义信 息, 其中, 所述预定义信息包括专有节点的指示信息, 和 /或, 多系统共用频谱上分量 载波的测量值, 其中, 所述指示信息包括: 系统能够使用的多系统共用频谱中的最大 分量载波数量信息, 所述测量值根据所述分量载波上的预定信号获取。 然后, 在步骤 S104中,根据所述预定义信息确定系统能够使用所述多系统共用频谱的最大分量载波 数量。 所述专有节点可以是所述共用频谱的多个系统中某一个系统或多个系统共享的节 点, 也可以是专用于共用频谱的特殊节点。
本发明实施例的确定方法 100, 通过控制系统使用的载波数量, 解决系统间的干 扰问题, 还可以实现频谱使用效率的提升。 可选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 假 设步骤 S102中得到的测量值小于阈值的载波数量为 H,如果当前使用的载波数量小于 H, 则在步骤 S104中可以在满足第一种预定义原则前提下, 选择使用的载波数量; 其 中, 所述第一种预定义原则具体包括: 所述系统使用的最大载波数量不能超过 H。 可选地,假设步骤 S102中得到的测量值小于阈值的载波数量为 H,如果所述系统 当前使用的载波数量大于 H, 则所述方法还包括: 所述系统释放已占有的无线资源。 可选地, 在本发明实施例中, 释放已占有的无线资源可以包括: 一次性释放, 使 得释放后聚合的载波数量小于等于 H; 或者, 释放的载波数量至少要满足大于等于 1, 释放后聚合的载波数量可以大于 H, 也可以小于等于11。 可选地, 如果 H为 0或 H小于等于预定义值 N, 则在步骤 S104中确定的所述系 统能够使用的最大载波数量为 N或 k, N、 k为正整数, k小于 N; 可选地, 在本发明实施例中, N的取值为 1或 2或 3。 可选地, 在本发明实施例中, 所述系统可以在一定时间内执行一次上述步骤 S102 中的测量。 可选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 步 骤 S102中可以通过测量分量载波上的预定信号获取,其中,测量时间各系统可以在一 定范围内自主选择, 或者, 按照一定周期进行测量, 或者, 根据系统性能采用触发式 的测量。 在本发明实施例中, 在所述预定义信息包括所述多系统共用频谱上分量载波的测 量值时, 上述测量值可以根据测量到的干扰信号强度确定, 或者, 根据测量到已知信 号强度确定, 或者, 所述测量值根据测量到已知信号强度和干扰信号强度比值确定。 可选地, 步骤 S102中, 以分量载波为单位进行测量, 即每个分量载波对应一个测 量值。 可选地, 在所述预定义信息包括多系统共用频谱上分量载波的测量值时, 在执行 步骤 S102之后,所述方法还可以包括:根据各个分量载波的测量值确定系统使用的分 量载波。
可选地, 根据各个分量载波的测量值确定系统使用的分量载波可以包括: 按照测 量值从小到大的顺序进行载波聚合, 如果只能使用一个分量载波的资源时, 可以选择 测量值最小的分量载波, 或者, 任意选择一个分量载波, 或者, 选泽测量值最大的分 量载波。 可选地, 当测量值大小代表了干扰程度时, 如果某个分量载波的测量值指示所述 分量载波处于强干扰情况下, 则新开启的系统或已开启的系统需要回避, 降低使用的 分量载波数量, 如: 仅使用一个分量载波, 从而, 降低自身干扰的产生, 减少对其他 系统的干扰; 当有干扰系统存在时, 所有系统使用的最大分量载波数量受限, 如: 此 时仅能使用 1个或 2个分量载波, 而没有干扰系统或干扰系统很少 (相对可用的分量 载波数量) 时, 所有系统聚合的最大载波数量不受限制或少量限制。 通过上述方法, 可以使得空闲场景资源可以最大化使用, 而干扰场景每个系统产 生的干扰受限 (仅有一个载波), 从而, 实现干扰控制, 通过本发明实施例提供的上述方法可以降低在免授权频谱上各系统之间干扰, 同 时, 避免某系统一直独占资源不释放问题, 使得先启动系统和后启动系统都具有相同 的权利, 保证资源使用的公平性。 可选地, 在确定系统能够使用的最大分量载波数量之后, 还可以进一步通过竞争 的方式获取系统使用的资源。 可选地, 不同系统采用竞争的方式获取资源之后, 所述系统将竞争到的资源通过 调度的方式分配用户设备, 用于接收数据或发送数据; 或者, 也可以将不同基站以及 用户设备都看作一般节点, 采用 D2D的竞争方式, 在所述频谱上获取资源。 可选地, 所述系统采用竞争的方式获取资源可以包括以下方式之一: 方式 a: 根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资源; 方式 b: 将分量载波至少划分为两类, 一类是用于传输竞争信号或信道的载波, 一类是通过竞争获取用于数据传输的分量载波, 系统从用于传输竞争信号或信道的载 波上获取竞争信号或信道, 再通过获取的竞争信号或信道竞争用于数据传输的分量载 波上的资源, 其中, 所述系统传输竞争信号或信道的分量载波的数量与传输数据的分 量载波的数量之和不大于所述最大分量载波数量; 方式 c: 所述多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过竞 争方式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 所述系统根据分量
载波类型确定相应的分量载波获取方式, 其中, 所述系统通过竞争方式获取的分量载 波数量与通过非竞争方式获取的分量载波数量之和不大于所述最大分量载波数量; 采用方式 a可以实现各分量载波的独立管理, 方式 b集中竞争信号或信道占用的 资源, 提高资源使用效率, 方式 c实现竞争方式和调度方式的结合, 可以获得二者的 优势, 提高资源效率。 可选地, 系统在竞争到资源后, 可以确定所述资源的使用方式。 可选地, 所述竞争到的资源为不连续的时域资源时, 相应资源的使用方法具体包 括以下之一: 基站广播所述不连续时域资源的时域位置信息; 基站将不连续的物理资 源虚拟为连续资源, 按照系统在连续资源的工作方式使用所述资源; 基站采用时分双 工的方式使用所述资源, 将没有竞争到的资源配置为上行子帧; 按照系统在连续资源 的工作方式使用所述资源, 基站没有竞争到的资源定义为零功率 (Muting, 静默) 子 帧或空子帧。 可选地, 在本发明实施例中, 物理共享信道的 HARQ定时可以根据竞争到的资源 重新定义, 使得当基站或终端发送数据时都有资源可用, 也可以根据已有的定时, 采 用自适应的方式或挂起等待的方式处理, BP : 当资源不可用时, 就等待到下一个可用 资源上发送, 相应的接收方也是在当前资源不可用时, 暂不接收, 等待到下一个可用 资源上再接收。 通过上述竞争的方式, 可以避免相互干扰较强的系统同时使用该频谱资源。 可选地, 在本发明实施例中, 还可以对系统带宽管理, 具体包括: 预定义系统带 宽和系统的频点,在本发明实施例中,系统带宽和系统的频点定义后不可以任意改变。 为了降低不同运营商系统之间的干扰, 需要不同运营商之间的系统进行协调, 保 证在相同频谱大家频点对齐, 以便进行频域的干扰协调。 在本发明实施例中,可以优先保证分量载波数量再考虑分量载波对应的系统带宽, 或者, 也可以优先考虑分量载波对应的系统带宽再考虑分量载波数量。 在本实施例中, 预定义系统带宽可以包括以下方式之一: (1 ) 系统带宽为预定义 值, 可以是 20MHz、 10MHz、 5MHz, BP : 所有系统都按照 20M统一定义, 或者, 以 20M为基本资源单位, 在每个基本资源单位进行预定义划分, 如划分为两个 10M, 或 者, 四个 5M等。 (2)根据所在的频段的可用频谱大小确定所述预定义值, 如: 2G频 谱采用预定义 5M大小, 3G频谱采用 20M频谱; 或者, 可用频谱为 7M时, 按照 5M
预定义, 可用频谱 12M时, 按照 10M预定, 可用频谱 35M时, 按照 20M+10M预定 义, 其中, 5M为预留保护带。 (3 ) 为获得更多的分量载波数量, 以便进行干扰控制, 可以根据可用频谱大小尽量多的定义分量载波数量, 其中, 最小系统带宽为 5MHz, 如: 20M定义为 4个 5MHz分量载波, 40M定义 4个 10MHz的分量载波, 100MHz 定义 5个 20MHz的分量载波等。 根据本发明实施例, 还提供一种无线资源的确定装置。 用于实现上述的无线资源 的确定方法 100。 图 2为根据本发明实施例的无线资源的确定装置 200的结构示意图,如图 2所示, 本发明实施例的无线资源的确定装置主要包括: 获取模块 202和第一确定模块 204。 应当理解, 图 2中所表示的各个模块的连接关系仅为示例, 本领域技术人员完全可以 采用其它的连接关系, 只要在这样的连接关系下各个模块也能够实现本发明的功能即 可。 在本说明书中, 各个模块的功能可以通过使用专用硬件、 或者能够与适当的软件 相结合来执行处理的硬件来实现。 这样的硬件或专用硬件可以包括专用集成电路 (ASIC)、 各种其它电路、 各种处理器等。 当由处理器实现时, 该功能可以由单个专 用处理器、 单个共享处理器、 或者多个独立的处理器(其中某些可能被共享)来提供。 另外, 处理器不应该被理解为专指能够执行软件的硬件, 而是可以隐含地包括、 而不 限于数字信号处理器 (DSP) 硬件、 用来存储软件的只读存储器 (ROM)、 随机存取 存储器 (RAM)、 以及非易失存储设备。 在图 2中, 获取模块 202, 设置为获取预定义信息, 其中, 所述预定义信息包括 专有节点的指示信息, 和 /或, 多系统共用频谱上分量载波的测量值, 其中, 所述指示 信息包括: 系统能够使用的多系统共用频谱中的最大分量载波数量信息, 所述测量值 根据所述分量载波上的预定信号获取; 第一确定模块 204, 设置为根据所述预定义信 息确定系统能够使用的所述多系统共用频谱中的最大分量载波数量。 可选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 如 果获取模块 202得到的测量值小于阈值的载波数量为 H, 且当前使用的载波数量小于 H, 则在第一确定模块 204设置为在满足第一种预定义原则前提下, 选择使用的载波 数量; 其中, 所述第一种预定义原则具体包括: 所述系统使用的最大载波数量不能超
可选地, 如图 3所示, 所述装置 200还可以包括: 释放模块 206, 设置为所述测 量值小于阈值的分量载波数量为 H, 且所述系统当前使用的分量载波数量大于 H时, 释放已占有的无线资源。 可选地, 释放模块 206设置为一次性释放已占有的部分无线资源, 使得释放后聚 合的分量载波数量小于等于 H, 或者, 释放的分量载波数量至少大于等于 1。 可选地, 如果所述 H为 0或者所述 H小于等于预定义值 N, 则所述系统使用的最 大分量载波数量为 N或 k, 其中, N、 k为正整数, k小于 N。 可选地, N为 1或 2或 3。 可选地, 在所述预定义信息包括所述多系统共用频谱上分量载波的测量值时, 获 取模块 202设置为在预定时间到达时, 对所述多系统共用频谱上的各个分量载波的预 定信号进行测量, 获取所述多系统共用频谱上的各个分量载波的测量值。 可选地, 所述预定时间包括以下之一: 所述系统在预定时间段内选择的时间; 预 定测量周期到达的时间; 系统性能达到预定值的时间。 可选地, 获取模块 202可以通过以下方式之一获取多系统共用频谱上分量载波的 测量值: 根据各个所述分量载波上测量到的干扰信号强度确定对应分量载波的测量值; 根据各个所述分量载波上测量到的已知信号强度确定对应分量载波的测量值; 根据各个所述分量载波上测量到的已知信号强度与干扰信号强度的比值, 确定对 应分量载波的测量值。 可选地, 所述装置还包括: 第二确定模块, 设置为所述预定义信息包括所述多系 统共用频谱上分量载波的测量值时, 根据各个所述分量载波的测量值确定所述系统使 用的分量载波。 可选地, 第二确定模块设置为按照所述测量值从小到大的顺序进行载波聚合, 如 果所述系统只能使用一个分量载波的资源, 则选择测量值最小的分量载波, 或者, 选 择任意一个分量载波, 或者, 选泽测量值最大的分量载波。 可选地, 所述装置还包括: 竞争模块, 设置为采用竞争的方式在所述多系统共用 频谱的不大于所述最大分量载波数量的分量载波上获取资源。
可选地, 所述装置还包括: 调度模块, 设置为将竞争到的资源通过调度的方式分 配用户设备。 可选地, 竞争模块可以通过以下方式之一获取资源: 根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资源, 其中, 竞争 到的分量载波的数量不大于所述最大分量载波数量; 如果所述多系统共用频谱对应的分量载波至少划分为两类, 一类是用于传输竞争 信号或信道的载波, 一类是通过竞争获取用于数据传输的分量载波, 则在用于传输竞 争信号或信道的载波获取竞争信号或信道, 再通过获取的竞争信号或信道竞争用于数 据传输的分量载波上的资源, 其中, 获取的传输竞争信号或信道的分量载波的数量与 传输数据的分量载波的数量之和不大于所述最大分量载波数量; 如果所述多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过竞争方 式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 则根据分量载波类型确 定相应的分量载波获取方式, 其中, 通过竞争方式获取的分量载波数量与通过非竞争 方式获取的分量载波数量之和不大于所述最大分量载波数量。 可选地, 所述装置还可以包括: 第三确定模块, 设置为根据获取的资源确定所述 资源的使用方式。 如果所述竞争到的资源为不连续的时域资源时, 则所述第三确定模块确定的所述 资源的使用方式包括以下至少之一: 基站将不连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方式使用 所述资源; 基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行子帧; 按照系统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源定义为 零功率子帧或空子帧。 基站广播所述不连续时域资源的时域位置信息。 可选地, 所述装置还包括: HARQ定时处理模块, 设置为对物理共享信道的自动 混合重传请求 HARQ定时, 根据竞争到的资源重新定义, 使得当基站或终端发送数据 时都有资源可用, 或者根据已有的定时, 采用自适应的方式或挂起等待的方式处理。
可选地, 所述装置还包括: 设定模块, 设置为设定系统带宽和系统的频点, 其中, 不同系统在相同频谱的频点对齐。 可选地, 所述设定模块设置为在保证所述系统使用的分量载波数量的前提下, 设 定所述分量载波对应的系统带宽; 或者, 确定所述系统使用的分量载波数量之前, 设 定分量载波对应的系统带宽。 可选地, 所述设定模块设置为将所述系统带宽设定为预设值; 其中, 所述预设值 包括: 20MHz、 10MHz、 或 5MHz; 或者, 根据所述系统所在的频段的可用频谱大小 确定所述预设值; 或者, 使可用频谱大小能够尽量多的定义分量载波数量的方式设置 所述系统带宽。 本发明实施例的无线资源的确定装置具有上述无线资源的确定方法中所有可选实 施方式对应的实施方式, 具体不再赘述。 根据本发明实施例, 还提供了一种无线资源的获取方法 400。 图 4为根据本发明实施例的无线资源的获取方法 400的流程图, 如图 4所示, 该 方法主要包括步骤 S402。 在步骤 S402中, 系统采用竞争的方式在多系统共用频谱的 分量载波上获取资源。 在本发明实施例中, 不同系统采用竞争的方式获取资源, 从而可以避免相互干扰 较强的系统同时使用该频谱资源。 在执行步骤 S402之后,方法 400还可以包括:所述系统将竞争到的资源通过调度 的方式分配用户设备, 用于接收数据或发送数据; 或者, 在在发明实施例中, 也可以 将不同基站以及用户设备都看作一般节点, 各个节点采用 D2D的竞争方式, 在所述频 谱上获取资源。 因此, 可选地, 所述方法还包括: 用户设备根据系统调度信息在所述 多系统共用频谱上获取资源, 或者, 用户设备通过竞争方式, 在所述多系统共用频谱 上获取资源。 可选地, 在步骤 S402中, 采用竞争的方式获取资源可以包括以下方式之一: 方式 a: 根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资源; 方式 b : 如果多系统共用频谱对应的分量载波至少划分为两类, 一类是用于传输 竞争信号或信道的载波, 一类是通过竞争获取用于数据传输的分量载波, 则系统在用
于传输竞争信号或信道的载波获取竞争信号或信道, 再通过获取的竞争信号或信道竞 争用于数据传输的分量载波上的资源; 方式 C : 如果多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过竞 争方式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 则系统根据分量载 波类型确定相应的分量载波获取方式; 方式 a可以实现各分量载波的独立管理,方式 b集中竞争信号或信道占用的资源, 提高资源使用效率, 方式 c实现竞争方式和调度方式的结合, 可以获得二者的优势, 提高资源效率。 可选地, 采用竞争的方式获取的所述资源包括: 发送竞争信号或信道的资源。 可选地, 采用竞争的方式获取的所述资源还可以包括: 用于竞争冲突解决的资源 或竞争资源确认的资源。 可选地, 系统采用竞争的方式在多系统共用频谱的分量载波上获取资源, 包括: 所述系统在其选择的发送竞争信号或信道的资源对应的竞争确认资源上发送本系 统在所述发送竞争信号或信道的资源上监听到的信号; 所述系统通过在所述竞争确认资源上接收到的其他系统发出的各系统监听到的信 号, 确认自身是否竞争到相应资源, 其中, 在所述竞争确认资源上的数据发送格式是 固定的或与竞争信号对应。 例如, 其他系统在所述系统选择竞争信号或信道上仅监听 了所述系统的信号或信道, 则证明竞争成功。 如果其他系统还监听到了其他系统的信 号或信道, 所述系统可以根据监听的情况选择放弃上次竞争资源, 重新竞争; 或者, 仍然使用所述竞争资源发送后续数据。 其中, 所述系统根据其他系统在竞争确认资源 上发送的信息可以确定其他系统监听情况。 在竞争到资源后,在步骤 S404中,系统还可以确定所述资源的使用方式。可选地, 所述竞争到的资源为不连续的时域资源时, 系统确定所述资源的使用方式可以包括以 下至少之一: 基站广播所述不连续时域资源的时域位置信息; 基站将不连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方式使用 所述资源; 基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行子帧;
按照系统在连续资源的工作方式使用所述资源, 基站没有竞争到的资源定义为零 功率 (Muting, 静默) 子帧或空子帧。 可选地, 在本发明实施例中, 物理共享信道的 HARQ定时可以根据竞争到的资源 重新定义, 使得当基站或终端发送数据时都有资源可用, 也可以根据已有的定时, 采 用自适应的方式或挂起等待的方式处理, 即: 当资源不可用时, 就等待到下一个可用 资源上发送, 相应的接收方也是在当前资源不可用时, 暂不接收, 等待到下一个可用 资源上再接收。 通过上述竞争的方式, 可以避免相互干扰较强的系统同时使用该频谱资源。 根据本发明实施例, 还提供了一种无线资源的获取装置 500。 该获取装置 500可 以用于实现上述无线资源的获取方法 400。 图 5为根据本发明实施例的无线资源的获取装置 500的结构示意图,如图 5所示, 该装置主要包括: 获取模块 502, 设置为通过竞争的方式在多系统共用频谱的分量载 波上获取资源。 可选地, 如图 5所示, 所述装置 500还可以包括: 分配模块 504, 设置为将竞争 到的资源通过调度的方式分配用户设备。 可选地, 获取模块 502可以通过以下方式之一在多系统共用频谱的分量载波上获 取资源: 系统根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资源; 如果所述多系统共用频谱对应的分量载波至少划分为两类, 一类是设置为传输竞 争信号或信道的载波, 一类是通过竞争获取设置为数据传输的分量载波, 则在设置为 传输竞争信号或信道的载波获取竞争信号或信道, 再通过获取的竞争信号或信道竞争 设置为数据传输的分量载波上的资源; 如果所述多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过竞争方 式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 则根据分量载波类型确 定相应的分量载波获取方式。 可选地, 采用竞争的方式获取的所述资源包括: 发送竞争信号或信道的资源。 可选地, 采用竞争的方式获取的所述资源还可以包括: 用于竞争冲突解决的资源 或竞争资源确认的资源。
则获取模块 502可以包括: 发送模块, 设置为在选择的发送竞争信号或信道的资源对应的竞争确认资源上发 送本系统在所述发送竞争信号或信道的资源上监听到的信号; 确认模块, 设置为通过在所述竞争确认资源上接收到的其他系统发出的各系统监 听到的信号, 确认自身是否竞争到相应资源, 其中, 在所述竞争确认资源上的数据发 送格式是固定的或与竞争信号对应。 可选地, 如图 5所示, 所述装置 500还可以包括: 确定模块 506, 设置为根据所 述获取模块 502获取的资源确定所述资源的使用方式。 可选地, 如果竞争到的资源为不连续的时域资源时, 确定模块 506确定的所述资 源的使用方式包括以下至少之一: 基站广播所述不连续时域资源的时域位置信息; 基站将不连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方式使用 所述资源; 基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行子帧; 按照系统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源定义为 零功率子帧或空子帧。 可选地, 所述装置还可以包括: HARQ定时处理模块, 设置为对物理共享信道的 自动混合重传请求 HARQ定时, 根据竞争到的资源重新定义, 使得当基站或终端发送 数据时都有资源可用, 或者根据已有的定时, 采用自适应的方式或挂起等待的方式处 理。 本发明实施例的无线资源的获取装置具有上述无线资源的获取方法中所有可选实 施方式对应的实施方式, 具体不再赘述。 为了进一步描述本发明实施例提供的技术方案, 下面以 LTE系统为例进行说明。
LTE系统应用于多个系统共用的频谱时, 面临的主要问题是不同运营商之间 LTE 系统之间的干扰问题, 以及 LTE系统和 wifi系统等异系统之间的干扰问题。 实施例一
在本实施例中, LTE系统应用于免授权频谱或授权频谱。 本实施例中, LTE系统的资源获取方法, 以载波为单位获取资源, 通过干扰测量 与载波的聚合 (释放) 结合的方法, 解决系统间的干扰问题, 实现频谱使用效率的提 升。 本实施例中, 所述资源获取方法具体包括: 所述系统使用的最大载波数量根据测 量值确定。 具体可以包括: 假设测量值小于阈值的载波数量为 H, 如果当前使用的载波数量小于 H, 贝 ij, 可 以在满足第一种预定义原则前提下, 选择使用的载波数量; 其中, 所述第一种预定义 原则具体包括: 所述系统使用的最大载波数量不能超过 H; 如果所述 H为 0或所述 H 小于等于预定义值 N, 所述系统使用的最大载波数量为 N或 k, N、 k为正整数, k小 于 N; N优先值为 1或 2或 3。 如果所述系统当前使用的载波数量大于 H, 贝 lj, 需要 释放已占有的无线资源。 在本实施例中, 系统在一定时间内进行一次上述测量; 其中, 测量时间各系统可 以在一定范围内自主选择, 也可以按照一定周期进行测量, 或者, 根据系统性能采用 触发式的测量, 参考性能包括以下至少之一: 终端上报的 CQI、 数据重传概率、 通过 上行信号测量到的干扰、 RSRP或 RSRQ、 RNTP、 基站测到的干扰情况等。 在本实施例中, 其中, 所述测量时间的范围是受限的, 以保证各系统一定会执行 测量, 从而, 避免资源的一直占有。 在本实施例中, 如果系统当前聚合的载波数量大于 H, 贝 ij, 需要释放已占有的无 线资源。 在本实施例中, 在释放已占用的无线资源时, 可以一次性释放, 使得释放后聚合 的载波数量小于等于 H, 或者, 释放的载波数量至少要满足大于等于 1, 释放后聚合 的载波数量可以大于 H。 如果不是一次性释放, 则缩短测量的时间间隔, 直到满足聚合的载波数量小于等 于11。 在本实施例中, H取值可以是预定义值, 也可以是随时间或传输情况或测量值情 况变化。 采用这种方式, 在满足聚合的载波数量后可以重新定义测量的时间间隔。
在本实施例中, 缩短所述测量的时间间隔可以是等比例缩短, 例如, 每次都按照 上一次间隔时间的 1/2缩短直到缩短到测量时间的最小单位 (例如, 1毫秒), 或者, 按照预定义值逐次减少。 在所述释放无线资源时, 可以将所述测量值大 (如: 干扰强的分量载波) 的分量 载波优先释放, 或, 任意选择一个分量载波释放; 可选地, 如果当前聚合的载波数量小于 H, 则可以在满足上述限定前提下, 根据 需要进一步扩大或减少聚合的载波数量。 在本实施例中, 所述测量值可以根据测量到的干扰信号强度确定, 或者, 所述测 量值根据测量到已知信号强度确定, 或者, 所述测量值根据测量到已知信号强度和干 扰信号强度比值确定。 所述测量值以分量载波为单位测量。 下面举例进行描述。 实例 1 在本实例中, 当前可用分量载波 (子信道 /服务小区)数量为 4个, 当前测量值小 于阈值的载波数量为 4, 此时, 系统可以在 4个分量载波内根据实际应用需求任意选 择使用的分量载波。 实例 2 在本实例中, 当前可用分量载波 (子信道 /服务小区)数量为 5个, 当前测量值小 于阈值的载波数量为 3, 此时, 系统当前使用的分量载波数量为 1个, 系统可以在 3 个分量载波内根据实际应用需求任意选择使用的分量载波。 实例 3 在本实例中, 当前可用分量载波 (子信道 /服务小区)数量为 3个, 当前测量值小 于阈值的载波数量为 0, 此时, 系统当前使用的分量载波数量为 3个, 系统需要释放 使用的资源, 可以释放 2个分量载波, 也可以释放 1个分量载波, 等到下次测量仍不 满足需求时, 再释放 1个分量载波。 在本实施例中, 上述系统载波聚合的限定可以用于基站。 主要指基站可以使用的 分量载波数量; 如: 基站根据测量值, 确定用于 UE接入的分量载波数量, 基站仅在 可以使用的分量载波上传输下行数据和下行信号。
如果基站可以通过多天线 (定向天线、 定向波束等) 技术降低干扰并且忽略公有 信号或公有信道的干扰, 上述限定也可以用于终端, 主要指基站根据 UE测到的测量 值来配置所述 UE的分量载波数量。 在本实施例中, 所述方法还可以包括: 根据测量值确定聚合的载波。 具体可以包 括: 按照测量值从小到大的顺序进行载波聚合,如果只能使用一个分量载波的资源时, 可以选择测量值最小的分量载波, 或者, 任意选择一个分量载波, 或者, 选泽测量值 最大的分量载波。 在进行载波聚合后, 在使用聚合载波上的资源时, 由于时域资源是连续的, 因此, 可以应用现有资源使用方式, 也可以应用未来系统演进引入新的资源方式。 如果测量值大小代表了干扰程度, 当各载波都处于强干扰情况下, 新开启的系统 或已开启的系统需要回避, 降低使用的分量载波数量, 如: 仅使用一个分量载波, 从 而, 降低自身干扰的产生, 减少对其他系统的干扰。 通过上述方法可以降低在免授权频谱上各系统之间干扰, 同时, 避免某系统一直 独占资源不释放问题, 使得先启动系统和后启动系统都具有相同的权利, 保证资源使 用的公平性。 实施例二 在本实施例中, LTE系统应用于免授权频谱或授权频谱。 本实施例中, LTE系统的资源获取方法, 以资源竞争的方式解决系统间的干扰问 题, 实现频谱使用效率的提升。 所述方法具体包括: 不同系统采用竞争的方式获取资源, 所述系统将竞争到的资 源通过调度的方式分配用户设备, 用于接收数据或发送数据。 所述采用竞争的方式获取资源具体包括: 根据竞争信号或信道来竞争其所在分量 载波上的资源。 注: 所述竞争方式可以采用 D2D的竞争方式, 或者, wifi中的竞争方式, 其中, 所述竞争信号或信道代表的可用资源需要重新定义。 在本实施例中, 将一个分量载波上的资源划分为至少两部分, 一部分用于竞争相 关资源, 一部分用于竞争信号或竞争信道对应的竞争到的用于数据传输的资源。
在本实施例中, 所述竞争相关资源包括: 发送竞争信号或信道的资源; 还可以包 括: 用于竞争冲突解决的资源或竞争资源确认的资源。 在本实施例中, 所述系统在其选择竞争信号或信道对应的确认资源上发送本系统 在竞争资源上监听到的信号, 所述系统通过在确认资源上接收到的其他系统发出的各 系统监听到的信号, 确认自身是否竞争到相应资源。 例如, 其他系统在所述系统选择 竞争信号或信道上仅监听了所述系统的信号或信道, 则证明竞争成功。 如果其他系统 还监听到了其他系统的信号或信道, 所述系统可以根据监听的情况选择放弃上次竞争 资源, 重新竞争; 或者, 仍然使用所述竞争资源发送后续数据 (此场景, 相当于有干 扰但不严重情况)。 其中, 确认资源上数据发送格式是固定的或与竞争信号对应。 其中, 所述系统根据其他系统在确认资源上发送的信息确定其他系统监听情况; 例如,其他系统监听到的信号索引,或,使用 0或 1表示监听的信号数量是否等于 1 等 其他方法。 其中, 所述竞争信道可以承载系统信息。 下面通过具体实例进行描述。 实例 1 本实例中, 假设可以选择的竞争资源有 k个, 系统 A选择 hi竞争资源发送竞争 信号或信道, 在其他竞争资源 (部分或全部) 上监听其他系统的竞争信号或信道, 如 果没有监听到竞争信号或信道, 意味着只有本系统在工作, 或者, 其他系统与本系统 使用了相同的竞争信号或信道。 则系统 A可以在所述竞争资源 hi对应的数据资源上发送数据; 或者, 系统 A可以在所述 k个竞争资源中选择多个竞争资源(如: tl、 t2、 t3 )对应的数 据资源上发送数据 (一会在 tl上发送、 一会在 t2上发送、 一会在 t3上发送); 或者, 系统 A在确认资源中监听其他系统发送的信号或信道, 同时, 在确认资源中选择 一个确认资源发送本系统对应的信号或信道, 如果系统 A在确认资源中没有监听到其 他系统的信息, 贝 lj, 系统 A可以在所述竞争资源 hi对应的数据资源上发送数据 (包 括上述在单个竞争资源上发送或在多个竞争资源上发送),如果在确认资源中监听到其 他系统的信息, 贝 lj, 按照预定义的优先准则, 选择另一个竞争资源 h2对应的数据资源
上发送数据, 或, 还在所述竞争资源 hi对应的数据资源上发送数据; 优选的, 所述 优先准则可以根据确认资源的索引确定, 或, 根据监听到的信息确定。 实例 2 本实例中, 假设, 可以选择的竞争资源有 k个, 系统 A选择竞争资源 hi发送竞 争信号或信道, 在其他竞争资源 (部分或全部) 上监听其他系统的竞争信号或信道, 如果监听到其他竞争信号或信道, 意味着还有本系统在工作。 系统 A在确认资源中监听其他系统发送的信号或信道, 同时, 在确认资源中选择 竞争资源 hi对应的确认资源发送本系统对应的信号或信道, 如果系统 A在确认资源 中没有监听到其他系统的信息, 贝 lj, 系统 A在所述竞争资源 hi对应的数据资源上发 送数据。 如果系统 A在确认资源中监听到其他系统的信息, 贝 1」, 根据其他系统信息确定是 否有其他系统和系统 A在所述竞争资源 hi上发生冲突, 如果发生冲突, 根据在确认 资源中监听到其他系统的信息, 系统 A确定在所述竞争资源 hi对应的数据资源上发 送数据, 还是放弃该资源, 重新竞争资源。 注: 如果在确认资源上监听到多个系统的信息且各系统信息不一致, 可以按照预 定义的优先级, 选择优先级最高的系统信息确定; 在本实施例中, 所述数据传输资源可以按照时隙 /子帧 /无线帧, 和 /或, 资源块 /资 源块组为单位进行资源组划分, 一个竞争信号或信道对应一个资源组。 不同运营商或不同制式系统之间通过所述竞争信号或信道确定自身系统可以使用 的资源, 并在这些资源上向 UE传输数据, 调度 UE在相应资源上传输数据给基站。 在本实施例中, 如果所述竞争到的资源为不连续的时域资源时, 资源使用方式具 体可以包括以下至少之一: 基站广播所述不连续时域资源的时域位置信息; 基站将不连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方式使用 所述资源;
UE根据基站广播信息确定不连续资源的时域位置信息,然后,确定虚拟连续资源 的位置, 根据虚拟连续资源上的传输, 确定相应物理资源上传输方式, 所述传输包括 发送和接收;
基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置上行子帧; 此 时, 只要不在所述没有竞争到的资源上调度数据发送, 对于 UE可以做到透明的方式; 按照系统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源配置为 零功率 (Muting, 静默) 子帧; 以便 UE可以分类别进行测量, 如: 没有竞争到资源 测量和竞争到资源的测量; 并且, UE可以根据可用资源按照新的 HARQ定时进行数 据传输和接收。 在本实施例中, 物理共享信道的 HARQ定时可以根据竞争到的资源重新定义, 使 得当基站或终端发送数据时都有资源可用, 也可以根据已有的定时, 采用自适应的方 式或挂起等待的方式处理, 即: 当资源不可用时, 就等待到下一个可用资源上发送, 相应的接收方也是在当前资源不可用时, 暂不接收,等待到下一个可用资源上再接收。 通过上述竞争的方式, 可以避免相互干扰较强的系统同时使用该频谱资源。 实施例三 本实施例中, LTE系统应用于免授权频谱或授权频谱。 本实施例中的资源获取方法, 以资源竞争的方式解决系统间的干扰问题, 实现频 谱使用效率的提升。 本实施例中的资源获取方法包括: 将不同系统的基站以及终端都看作一般节点, 采用 D2D的竞争方式, 在所述频谱上获取资源。 在本实施例中, 各个节点根据竞争信号或信道来竞争其所在分量载波上的资源。 基站可以在竞争的资源上发送信号和系统信息, 供 UE接入, UE可以自主的在一 个或多个分量载波上检测基站发送的信号和系统信息, 可以自主选择一个基站接入, 也可以选择多个基站接入, 进行数据传输; 其中, 所述 UE也是通过竞争的方式获得 资源, 向基站发送数据。 通过上述竞争的方式, 可以避免相互干扰较强的系统同时使用该频谱资源。 实施例四 本实施例中, LTE系统应用于免授权频谱, 系统的资源获取方法, 以资源竞争的 方式解决系统间的干扰问题, 实现频谱使用效率的提升。
在本实施例中, 将不同系统的基站以及终端都看作一般节点, 采用 D2D的竞争方 式, 在所述频谱上获取资源; 在本实施例中, 将分量载波至少划分为两类, 一类是用于传输竞争信号或信道的 载波, 一类是通过竞争获取用于数据传输的分量载波。 在本实施例, 部分分量载波上资源采用调度的方式使用, 例如, 通过授权频谱调 度免授权频谱资源用于数据传输; 或者, 部分分量载波上资源根据其他分量载波上竞 争信号或信道来确定使用对像, 例如, 竞争信号或信道对应的竞争到的资源不再仅是 本分量载波的资源, 也包括其他分量载波上的资源。 通过本实施例的上述竞争的方式, 可以避免相互干扰较强的系统同时使用该频谱 资源; 实施例五 本实施例中, LTE系统应用于免授权频谱或授权频谱, 在本实施例中, 以资源竞 争的方式解决系统间的干扰问题, 实现频谱使用效率的提升。 在本实施例中, 不同系统采用竞争的方式获取资源, 系统将竞争到的资源通过调 度的方式分配用户设备, 用于接收数据或发送数据。 系统在采用竞争的方式获取资源时, 根据竞争信号或信道来竞争其所在分量载波 上的资源。 在本实施例中, 将分量载波至少划分为两类, 一类是用于传输竞争信号或信道的 载波, 一类是通过竞争获取用于数据传输的分量载波。 各基站通过至少一个分量载波 上的竞争信号或信道来获取可以使用的分量载波。 不同运营商或不同制式系统之间通过所述竞争信号或信道确定自身系统可以使用 的分量载波, 并在这些资源上向 UE传输数据, 调度 UE在相应资源上传输数据给基 站。 通过实施例的上述资源竞争的方式, 可以避免相互干扰较强的系统同时使用该频 谱资源; 实施例六 本实施例中将上述无线资源的确定方法 100与无线资源的获取方法 400相结合。
在实施例中, 系统先根据测量值选择聚合的载波, 然后, 在选择的聚合载波上通 过竞争的方式获取资源。 在本实施例中, 基站先根据测量值确定可以聚合的最大载波数量, 再根据需求确 定需要聚合的载波数量, 根据测量值选择准备竞争资源的分量载波, 在所述分量载波 上同其他基站或 UE竞争资源, 在获取的资源上传输数据。 实施例七 本实施例中, LTE系统应用于免授权频谱。 本实施例对本发明实施例提供的系统带宽管理方式进行描述。 在本实施例中, 系统带宽和系统的频点是预定义的, 不可以任意改变。 其中, 可 以采取以下两种方式定义系统带宽: 方式 1 : 当满足尽量增加分量载波对应的系统带宽前提后再考虑分量载波数量 在该实施方式中, 系统带宽为预定义值可以是 20M, BP : 所有系统都按照 20M统 一定义,这样可以保证不同运营商的系统在相同频谱上工作时各系统的中心频点相同, 从而, 保证相应序列的正交性, 如: 同步信号序列、 参考信号序列, 以及频域的干扰 协调。 由于可用频谱存在多种情况, 不同频段可用频谱的大小也不同, 再考虑需要预留 的分量载波之间保护间隔, 某些场景, 可用资源大小并不是 20M的整数倍, 此时, 根 据剩余资源的大小, 也可以考虑定义一个小于 20M的系统带宽。 或者, 也可以采用另一种方式, 即不考虑不同系统之间序列的正交性, 采用干扰 随机化的方式处理。 采用这种方式, 系统仅需要满足特定的接入需求, 例如, 中心频 点满足 300kHz倍数需求, 根据检测到的其他系统带宽或相邻小区的系统带宽, 结合 当前可用资源的大小, 自主选择系统带宽和系统中心频点位置。 方式 2: 当满足一定分量载波数量后尽量增加分量载波对应的系统带宽 为获得更多的分量载波数量, 以便进行干扰控制, 可以根据可用频谱大小尽量多 的定义分量载波数量, 在系统带宽和分量载波数量之间进行平衡, 当满足一定分量载 波数量后尽量增加分量载波对应的系统带宽。
例如, 至少保证 2个分量载波数量前提下再增加系统带宽, 如, 20M定义为 2个 10MHz分量载波, 40M定义 2个 20MHz的分量载波, 100MHz定义 5个 20MHz的分 量载波; 例如, 至少保证 3个分量载波数量前提下再增加系统带宽, 如, 20M定义为 4个 5MHz分量载波, 40M定义 5个 10MHz的分量载波, 100MHz定义 5个 20MHz的分 量载波。 从以上的描述中, 可以看出, 本发明实施例提供的技术方案, 通过针对不同资源 类型采用特定的管理方式, 可以提高无线资源的使用效率和无线系统传输性能, 降低 不同系统间的干扰。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
Claims
1. 一种无线资源的确定方法, 包括: 获取预定义信息, 其中, 所述预定义信息包括专有节点的指示信息, 和 / 或, 多系统共用频谱上分量载波的测量值, 其中, 所述指示信息包括: 系统能 够使用的多系统共用频谱中的最大分量载波数量信息, 所述测量值根据所述分 量载波上的预定信号获取;
根据所述预定义信息确定所述系统能够使用的所述多系统共用频谱中的最 大分量载波数量。
2. 根据权利要求 1所述的方法, 其中, 在所述预定义信息包括所述多系统共用频 谱上分量载波的测量值时, 根据预定义信息确定系统能够使用所述多系统共用 频谱的最大分量载波数量, 包括:
如果所述测量值小于阈值的分量载波数量为 H, 且所述系统当前使用的分 量载波数量小于 H, 则在满足第一种预定义原则前提下, 选择所述系统使用的 分量载波数量; 其中, 所述第一种预定义原则包括: 所述系统使用的最大分量 载波数量不能超过 H。
3. 根据权利要求 1所述的方法, 其中, 在所述预定义信息包括所述多系统共用频 谱上分量载波的测量值时, 如果所述测量值小于阈值的分量载波数量为 H, 且 所述系统当前使用的分量载波数量大于 H, 则所述方法还包括: 所述系统释放 已占有的无线资源。
4. 根据权利要求 3所述的方法, 其中, 所述系统释放已占有的无线资源, 包括: 所述系统一次性释放已占有的部分无线资源, 使得释放后聚合的分量载波数量 小于等于 H, 或者, 释放的分量载波数量至少大于等于 1。
5. 根据权利要求 2或 3所述的方法,其中, 如果所述 H为 0或者所述 H小于等于 预定义值 N, 则所述系统使用的最大分量载波数量为 N或 k, 其中, N、 k为正 整数, k小于 N。
6. 根据权利要求 5所述的方法, 其中, N为 1或 2或 3。
7. 根据权利要求 1所述的方法, 其中, 在所述预定义信息包括所述多系统共用频 谱上分量载波的测量值时, 获取预定义信息包括:
所述系统在预定时间到达时, 对所述多系统共用频谱上的各个分量载波的 预定信号进行测量, 获取所述多系统共用频谱上的各个分量载波的测量值。
8. 根据权利要求 7所述的方法, 其中, 所述预定时间包括以下之一: 所述系统在 预定时间段内选择的时间; 预定测量周期到达的时间; 系统性能达到预定值的 时间。
9. 根据权利要求 1所述的方法, 其中, 在所述预定义信息包括所述多系统共用频 谱上分量载波的测量值时, 获取预定义信息包括以下之一: 根据各个所述分量载波上测量到的干扰信号强度确定对应分量载波的测量 值; 根据各个所述分量载波上测量到的已知信号强度确定对应分量载波的测量 值;
根据各个所述分量载波上测量到的已知信号强度与干扰信号强度的比值, 确定对应分量载波的测量值。
10. 根据权利要求 1至 9中任一项所述的方法, 其中, 在所述预定义信息包括多系 统共用频谱上分量载波的测量值时, 在根据预定义信息确定系统能够使用的所 述多系统共用频谱中的最大分量载波数量之后, 所述方法还包括: 根据各个所 述分量载波的测量值确定所述系统使用的分量载波。
11. 根据权利要求 10所述的方法,其中,根据各个所述分量载波的测量值确定所述 系统使用的分量载波包括: 按照所述测量值从小到大的顺序进行载波聚合, 如果所述系统只能使用一 个分量载波的资源, 则选择测量值最小的分量载波, 或者, 选择任意一个分量 载波, 或者, 选泽测量值最大的分量载波。
12. 根据权利要求 1至 9中任一项所述的方法, 其中, 根据预定义信息确定系统能 够使用的所述多系统共用频谱中的最大分量载波数量之后, 所述方法还包括: 所述系统采用竞争的方式在所述多系统共用频谱的不大于所述最大分量载 波数量的分量载波上获取资源。
13. 根据权利要求 12所述的方法,其中,在所述系统采用竞争的方式在所述多系统 共用频谱的不大于所述最大分量载波数量的分量载波上获取资源之后, 所述方 法还包括:
所述系统将竞争到的资源通过调度的方式分配用户设备。
14. 根据权利要求 12所述的方法, 其中, 所述方法还包括: 用户设备根据系统调度信息在所述多系统共用频谱上获取资源, 或者, 用 户设备通过竞争方式, 在所述多系统共用频谱上获取资源。
15. 根据权利要求 12所述的方法,其中,所述系统采用竞争的方式在所述多系统共 用频谱的不大于所述最大分量载波数量的分量载波上获取资源,包括以下之一: 所述系统根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资 源, 其中, 所述系统竞争到的分量载波的数量不大于所述最大分量载波数量; 如果所述多系统共用频谱对应的分量载波至少划分为两类, 一类是用于传 输竞争信号或信道的载波, 一类是通过竞争获取用于数据传输的分量载波, 则 所述系统在用于传输竞争信号或信道的载波获取竞争信号或信道, 再通过获取 的竞争信号或信道竞争用于数据传输的分量载波上的资源, 其中, 所述系统获 取的传输竞争信号或信道的分量载波的数量与传输数据的分量载波的数量之和 不大于所述最大分量载波数量;
如果所述多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过 竞争方式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 则所述系 统根据分量载波类型确定相应的分量载波获取方式, 其中, 所述系统通过竞争 方式获取的分量载波数量与通过非竞争方式获取的分量载波数量之和不大于所 述最大分量载波数量。
16. 根据权利要求 14所述的方法,其中,所述系统采用竞争的方式在所述多系统共 用频谱的不大于所述最大分量载波数量的分量载波上获取资源之后, 所述方法 还包括: 所述系统根据获取的资源确定所述资源的使用方式。
17. 根据权利要求 16所述的方法,其中,所述系统根据获取的资源确定所述资源的 使用方式包括:
如果所述竞争到的资源为不连续的时域资源时, 所述资源的使用方式包括 以下至少之一:
基站将不连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方 式使用所述资源;
基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行 子帧;
按照系统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源 定义为零功率子帧或空子帧; 基站广播所述不连续时域资源的时域位置信息。
18. 根据权利要求 17所述的方法, 其中, 所述方法还包括: 对物理共享信道的自动 混合重传请求 HARQ定时, 根据竞争到的资源重新定义, 使得当基站或终端发 送数据时都有资源可用, 或者根据已有的定时, 采用自适应的方式或挂起等待 的方式处理。
19. 根据权利要求 1至 9中任一项所述的方法, 其中, 所述方法还包括: 设定系统带宽和系统的频点, 其中, 不同系统在相同频谱的频点对齐。
20. 根据权利要求 19所述的方法, 其中, 设定系统带宽和系统的频点包括: 在保证 所述系统使用的分量载波数量的前提下, 设定所述分量载波对应的系统带宽; 或者,确定所述系统使用的分量载波数量之前,设定分量载波对应的系统带宽。
21. 根据权利要求 20所述的方法, 其中, 设定系统带宽包括: 将所述系统带宽设定 为预设值; 其中, 所述预设值包括: 20MHz、 10MHz、 或 5MHz; 或者, 根据 所述系统所在的频段的可用频谱大小确定所述预设值; 或者, 使可用频谱大小 能够尽量多的定义分量载波数量的方式设置所述系统带宽。
22. 一种无线资源的确定装置, 包括: 获取模块, 设置为获取预定义信息, 其中, 所述预定义信息包括专有节点 的指示信息, 和 /或, 多系统共用频谱上分量载波的测量值, 其中, 所述指示信 息包括: 系统能够使用的多系统共用频谱中的最大分量载波数量信息, 所述测 量值根据所述分量载波上的预定信号获取;
第一确定模块, 设置为根据所述预定义信息确定系统能够使用的所述多系 统共用频谱中的最大分量载波数量。
23. 根据权利要求 22所述的装置, 其中, 所述装置还包括: 释放模块, 设置为在所述预定义信息包括所述多系统共用频谱上分量载波 的测量值时, 如果所述测量值小于阈值的分量载波数量为 H, 且所述系统当前 使用的分量载波数量大于 H, 释放已占有的无线资源。
24. 根据权利要求 22所述的装置, 其中, 所述装置还包括: 第二确定模块, 设置为在所述预定义信息包括多系统共用频谱上分量载波 的测量值时, 根据各个所述分量载波的测量值确定所述系统使用的分量载波。
25. 根据权利要求 22至 24任一项所述的装置, 其中, 所述装置还包括:
竞争模块, 设置为采用竞争的方式在所述多系统共用频谱的不大于所述最 大分量载波数量的分量载波上获取资源。
26. 一种无线资源的获取方法, 包括: 系统采用竞争的方式在多系统共用频谱的分量载波上获取资源。
27. 根据权利要求 26所述的方法,其中,系统采用竞争的方式在多系统共用频谱的 分量载波上获取资源之后, 所述方法还包括:
所述系统将竞争到的资源通过调度的方式分配用户设备。
28. 根据权利要求 27所述的方法, 其中, 所述方法还包括: 用户设备根据系统调度信息在所述多系统共用频谱上获取资源, 或者, 用 户设备通过竞争方式, 在所述多系统共用频谱上获取资源。
29. 根据权利要求 26所述的方法,其中,系统采用竞争的方式在多系统共用频谱的 分量载波上获取资源, 包括以下之一:
所述系统根据各自分量载波上竞争信号或信道来竞争各自分量载波上的资 源;
如果所述多系统共用频谱对应的分量载波至少划分为两类, 一类是设置为 传输竞争信号或信道的载波,一类是通过竞争获取设置为数据传输的分量载波, 则所述系统在设置为传输竞争信号或信道的载波获取竞争信号或信道, 再通过 获取的竞争信号或信道竞争设置为数据传输的分量载波上的资源;
如果所述多系统共用频谱对应的将分量载波至少划分为两类, 一类是通过 竞争方式获取的分量载波, 一类是通过非竞争方式获取的分量载波, 则所述系 统根据分量载波类型确定相应的分量载波获取方式。
30. 根据权利要求 26所述的方法, 其中, 采用竞争的方式获取的所述资源包括: 发 送竞争信号或信道的资源。
31. 根据权利要求 30所述的方法, 其中, 采用竞争的方式获取的所述资源还包括: 设置为竞争冲突解决的资源或竞争资源确认的资源。
32. 根据权利要求 31所述的方法,其中,系统采用竞争的方式在多系统共用频谱的 分量载波上获取资源, 包括:
所述系统在其选择的发送竞争信号或信道的资源对应的竞争确认资源上发 送本系统在所述发送竞争信号或信道的资源上监听到的信号;
所述系统通过在所述竞争确认资源上接收到的其他系统发出的各系统监听 到的信号, 确认自身是否竞争到相应资源。
33. 根据权利要求 26至 32中任一项所述的方法, 其中, 系统采用竞争的方式在多 系统共用频谱的分量载波上获取资源之后, 所述方法还包括:
所述系统根据获取的资源确定所述资源的使用方式。
34. 根据权利要求 34所述的方法,其中,所述系统根据获取的资源确定所述资源的 使用方式包括:
如果所述竞争到的资源为不连续的时域资源时, 所述资源的使用方式包括 以下至少之一: 基站广播所述不连续时域资源的时域位置信息;
基站将不连续的物理资源虚拟为连续资源, 按照系统在连续资源的工作方 式使用所述资源;
基站采用时分双工的方式使用所述资源, 将没有竞争到的资源配置为上行 子帧;
按照系统在连续资源的工作方式使用所述资源, 基站将没有竞争到的资源 定义为零功率子帧或空子帧。
35. 根据权利要求 26所述的方法, 其中, 所述方法还包括: 对物理共享信道的自动 混合重传请求 HARQ定时, 根据竞争到的资源重新定义, 使得当基站或终端发 送数据时都有资源可用, 或者根据已有的定时, 采用自适应的方式或挂起等待 的方式处理。
36. 一种无线资源的获取装置, 包括: 获取模块, 设置为通过竞争的方式在多系统共用频谱的分量载波上获取资 源。
37. 根据权利要求 36所述的装置, 其中, 所述装置还包括:
分配模块, 设置为将竞争到的资源通过调度的方式分配用户设备。
38. 根据权利要求 36所述的装置, 其中, 所述装置还包括:
确定模块,设置为根据所述获取模块获取的资源确定所述资源的使用方式。
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