WO2018210327A1 - 一种时隙的指示方法、接入网设备和用户设备 - Google Patents
一种时隙的指示方法、接入网设备和用户设备 Download PDFInfo
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- WO2018210327A1 WO2018210327A1 PCT/CN2018/087433 CN2018087433W WO2018210327A1 WO 2018210327 A1 WO2018210327 A1 WO 2018210327A1 CN 2018087433 W CN2018087433 W CN 2018087433W WO 2018210327 A1 WO2018210327 A1 WO 2018210327A1
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- slot format
- downlink control
- control information
- system parameters
- user equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
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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
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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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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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
- H04L5/0091—Signaling for the administration of the divided path
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Definitions
- the present application relates to the field of communications, and in particular, to a method for indicating a time slot, an access network device, and a user equipment.
- the basic unit in the frequency domain is one subcarrier
- the basic unit in the time domain is an Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol.
- OFDM Orthogonal Frequency Division Multiplexing
- a Resource Element (RE) is the smallest physical resource and contains one subcarrier within one OFDM symbol.
- a new air interface (New Radio, referred to NR), a basic scheduling unit of time domain time slot (slot) or a mini-slot (mini-slot), This is referred to herein as a time slot for simplicity.
- a slot consists of several OFDM symbols.
- a time slot can be divided into a control area and a data area, and a downlink control channel (PDCCH) carries control information, such as Downlink Control Information (DCI).
- the downlink control channel includes a group common physical downlink control channel (Group Common PDCCH) and a user equipment specific downlink control channel (UE-specific PDCCH).
- Group Common PDCCH group common physical downlink control channel
- UE-specific PDCCH user equipment specific downlink control channel
- the NR supports a flexible slot format, that is, symbols in one slot can be used for transmitting uplink data, all for transmitting downlink data, partly for transmitting uplink data, or partially for transmitting downlink data.
- the slot format can also be understood as a slot format, or slot format related information.
- the slot format can be indicated by control information carried in the group common physical downlink control channel.
- the maximum bandwidth of one carrier can reach 400 MHz, considering that the user equipment (User Equipment, UE) is limited by the maximum bandwidth capability, when the maximum bandwidth capability of the UE is less than the carrier bandwidth capability.
- the base station cannot allocate resources to the UE directly within the range of the carrier bandwidth.
- the base station allocates resources to the UE in two steps. The first step indicates a bandwidth part (BP) to the UE, and the second step allocates resources to the UE within the range of the BP. Therefore, different UEs may use different BPs, and each UE may use more than one BP.
- BP bandwidth part
- the embodiment of the present application provides a method for indicating a time slot, a method for receiving control information, an access network device, and a user equipment, and can indicate, to the user equipment, a slot format corresponding to a system parameter of a bandwidth portion of the working.
- a method for indicating a time slot including:
- the access network device determines at least one downlink control information, where the downlink control information includes at least one slot format indication;
- the access network device sends the downlink control information to a group of user equipments on a group common downlink control channel, where the group of user equipments works in M bandwidth parts, and the at least one slot format indication And a slot format corresponding to the N sets of system parameters indicating the M bandwidth parts, where N and M are both positive integers greater than 1.
- the slot format comprises a symbol type in a slot.
- the at least one downlink control information is a downlink control information, where the downlink control information includes N information fields, each of the N information fields The information field corresponds to a slot format indication.
- the N information fields are divided by bits.
- a fifth design according to the third design or the fourth design of the first aspect, the method further comprising: the access network device transmitting the N information fields and the N sets of systems to the user equipment The correspondence of the parameters.
- the at least one downlink control information is N downlink control information, and each of the N downlink control information corresponds to one slot format indication.
- the N downlink control information corresponds to the N sets of system parameters, each set of system parameters of the N sets of system parameters includes an identifier, and the identifier is used for The corresponding downlink control information is scrambled.
- the at least one downlink control information is a downlink control information
- the at least one slot format indication is a reference slot format indication, where The reference slot format indicates a slot format for indicating a reference system parameter of the N system parameters.
- the subcarrier spacing corresponding to the reference system parameter is a minimum value of the subcarrier spacing corresponding to the N system parameters, or the reference system parameter is a pre Defined system parameters.
- a tenth design according to any one of the first aspect or the first aspect of the first aspect, wherein the value of N is determined by at least one of the following:
- the value of the N corresponds to the number of sets of system parameters supported by the access network device
- N corresponds to a frequency range
- the value of the N is indicated by the access network device through the physical broadcast channel or the system message to the user equipment.
- a method for indicating a time slot including:
- the user equipment receives, on the group common downlink control channel, at least one downlink control information that is sent by the access network device to the group of user equipments, where the user equipment is one of the group of user equipments, and the downlink control information is Including at least one slot format indication, the group of user equipments operating in M bandwidth portions, the at least one slot format indicating a slot format corresponding to N sets of system parameters indicating the M bandwidth portions, where And N and M are both positive integers greater than 1; and the user equipment determines, according to the downlink control information, a slot format of a bandwidth portion corresponding to the user equipment.
- the slot format comprises a symbol type in a slot.
- the at least one slot format indication is N slot format indications.
- the at least one downlink control information is a downlink control information, where the downlink control information includes N information fields, each of the N information fields The information field corresponds to a slot format indication.
- the N information fields are divided by bits.
- a fifth design according to the third design or the fourth design of the second aspect, the method further comprising: the access network device transmitting the N information fields and the N sets of systems to the user equipment The correspondence of the parameters.
- the at least one downlink control information is N downlink control information, and each downlink control information of the N downlink control information corresponds to one slot format indication.
- the N downlink control information corresponds to the N sets of system parameters, each set of system parameters of the N sets of system parameters includes an identifier, and the identifier is used for The corresponding downlink control information is scrambled.
- the at least one downlink control information is a downlink control information
- the at least one slot format indication is a reference slot format indication
- the reference slot format indicates a slot format for indicating a reference system parameter of the N system parameters
- the method determines a slot format of the bandwidth portion according to the downlink control information, specifically:
- the user equipment determines a slot format of the bandwidth portion according to the reference system parameter and the reference slot format.
- the subcarrier spacing corresponding to the reference system parameter is a minimum value of the subcarrier spacing corresponding to the N system parameters, or the reference system parameter is a pre Defined system parameters.
- the value of the N is determined by at least one of the following:
- the value of the N corresponds to the number of sets of system parameters supported by the access network device
- N corresponds to a frequency range
- the value of the N is indicated by the access network device through the physical broadcast channel or the system message to the user equipment.
- an access network device including:
- a processor configured to determine at least one downlink control information, where the downlink control information includes at least one slot format indication;
- a transceiver configured to send the downlink control information to a group of user equipments on a group common downlink control channel, where the group of user equipments works in M bandwidth parts, and the at least one slot format indication is used to And indicating a slot format corresponding to the N sets of system parameters of the M bandwidth parts, where N and M are positive integers greater than 1.
- a user equipment including:
- a transceiver configured to receive, on a group common downlink control channel, at least one downlink control information that is sent by the access network device to a group of user equipments, where the user equipment is one of the group of user equipments,
- the downlink control information includes at least one slot format indication, the group of user equipments operates in M bandwidth sections, and the at least one slot format indicates a slot corresponding to the N sets of system parameters of the M bandwidth sections. Format, where N and M are positive integers greater than one;
- a processor configured to determine, according to the downlink control information, a slot format of a bandwidth portion corresponding to the user equipment.
- the access network equipment uses the downlink control information in the group common control channel for each
- the UE indicates the slot format used by its bandwidth portion.
- FIG. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present application.
- FIG. 2 is a schematic flowchart of a method for indicating a time slot according to an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of downlink control information according to an implementation manner of an embodiment of the present application.
- FIG. 4 is a schematic structural diagram of downlink control information according to an implementation manner of an embodiment of the present application.
- FIG. 5 is a schematic diagram of a correspondence between a bandwidth portion and a system parameter according to an implementation manner of an embodiment of the present application.
- FIG. 6 is a schematic structural diagram of an access network device according to an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present application.
- Access network devices can be different physical devices in different systems.
- an access network device in Long Term Evolution (LTE) and LTE-A includes an evolved base station (eNodeB, eNB), and an access network device in Wideband Code Division Multiple Access (WCDMA). Including Radio Network Controller (RNC) and/or NodeB.
- RNC Radio Network Controller
- WiMax Worldwide Interoperability for Microwave Access
- the user equipment may also be referred to as a terminal device, a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), etc., and the user equipment may be wirelessly accessed.
- the RAN Radio Access Network
- the user equipment may be a mobile phone (or “cellular” phone), a computer with communication function, etc., for example, the user equipment may also be Portable, pocket, handheld, computer built-in or in-vehicle mobile devices.
- the method and apparatus provided by the embodiments of the present application may be applied to a user equipment or a network device, where the user equipment or network equipment includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
- the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory).
- the operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
- the application layer includes applications such as browsers, contacts, word processing software, and instant messaging software.
- the specific structure of the execution body of the method for transmitting a signal is not particularly limited as long as the program of the code for recording the method of transmitting the signal of the embodiment of the present application is executed.
- the method for transmitting a signal according to the embodiment of the present application may be used for communication.
- the execution body of the method for wireless communication in the embodiment of the present application may be a user equipment or a network device, or may be a calling device in a user equipment or a network device.
- the functional module that executes the program may be a user equipment or a network device, or may be a calling device in a user equipment or a network device.
- a computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (DVD). Etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.).
- a magnetic storage device eg, a hard disk, a floppy disk, or a magnetic tape, etc.
- CD compact disc
- DVD digital versatile disc
- Etc. smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.).
- various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
- the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
- the term "and/or” is merely an association relationship describing an associated object, indicating that there may be three relationships.
- a and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
- the character "/" in this article generally indicates that the contextual object is an "or” relationship.
- the “first” and “second” in the embodiments of the present application are only used for distinguishing, and do not represent the meaning of the order or size.
- FIG. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present application.
- the wireless communication system 100 includes an access network device 102, which may include one antenna or multiple antennas such as antennas 104, 106, 108, 110, 112, and 114.
- access network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components associated with signal transmission and reception (eg, processor, modulator, complex) Consumer, demodulator, demultiplexer or antenna, etc.).
- Network device 102 can communicate with a plurality of user devices, such as user device 116 and user device 122. However, it will be appreciated that network device 102 can communicate with any number of user devices similar to user device 116 or user device 122.
- user equipment 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to user equipment 116 over a forward link (also referred to as downlink) 118 and through the reverse link (also Receiver 120 receives information from user equipment 116.
- user equipment 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to user equipment 122 over forward link 124 and information from user equipment 122 over reverse link 126.
- FIG. 2 is a schematic flowchart of a method 200 for indicating a time slot according to an embodiment of the present application. As shown in FIG. 2, method 200 includes the following.
- the access network device determines at least one downlink control information, where the downlink control information includes at least one slot format indication.
- the slot format indicator indicates a symbol type in one slot for indicating a corresponding bandwidth portion, for example, an uplink symbol, a downlink symbol, and/or other symbol uplink symbols, a downlink symbol, and/or the like in the slot. symbol.
- the slot format indication may indicate which one or which symbols in one slot of the corresponding bandwidth portion are uplink symbols, which symbols are downlink symbols, and/or which symbols are other symbols. Other symbols may contain information that is not uplink or downlink, such as blank resources.
- the access network device sends the downlink control information to a group of user equipments on a group common control channel, for example, a group common PDCCH, where the group of user equipments works.
- a group common control channel for example, a group common PDCCH
- M bandwidth portions the at least one slot format indicating a slot format corresponding to the N sets of system parameters indicating the M bandwidth portions, where N and M are both positive integers greater than one.
- an access network device can communicate with a plurality of user devices.
- a group of user equipments represents a plurality of user equipments.
- the number of the group of user equipments is less than all user equipments in the cell corresponding to the access network equipment.
- the group common control channel is a common control channel used by the group of user equipments, and the group of user equipments receive common downlink control information sent by the access network device to the entire group of user equipments on the group common control channel.
- the bandwidth portion corresponding to the slot format indicated by the downlink control information is the bandwidth portion of the user equipment operation.
- the user equipment receives downlink control information on a common downlink control channel.
- a group of user equipments can operate on M bandwidth parts (BPs).
- the access network equipment can allocate one or more bandwidth parts to each of a group of user equipments.
- a set of system parameters may be defined to include basic parameters used for multiple data transmission, such as subcarrier spacing and OFDM symbol length, and may also include, for example, slot length and cyclic prefix (CP). Length, etc.
- the subcarrier spacing of multiple sets of system parameters may be scaled proportionally by a multiple of 2 n . For example, in a set of system parameters, the subcarrier spacing is 15 kHz, the normal CP slot time length is 0.5 ms; in another set of system parameters, the subcarrier spacing is 30 kHz, and the normal CP slot time length is 0.25 ms.
- the N sets of system parameters of the M BPs in which a group of user equipments work can be understood as the N sets of system parameters corresponding to the M BPs in which the set of user equipments work.
- M and N may or may not be equal.
- the access network device configures two BPs for user equipment A.
- the two BPs correspond to two sets of different system parameters.
- the access network equipment also configures two BPs for user equipment B, and the two BPs also correspond to two. Set of different system parameters.
- the number M of BPs of the set of user equipments is 4, and the number N of system parameters of the four BPs is also 4. If the system parameters of the user equipment A are the same as the system parameters of the two sets of system parameters of the user equipment B, the number M of the BPs of the group of user equipments is 4, and the number N of system parameters of the four BPs is 3.
- the user equipment determines, according to the downlink control information, a slot format of the BP that works.
- the downlink control information includes a slot format corresponding to the N sets of system parameters of the M working bandwidths of the user equipment, and the user equipment may search, according to the downlink control information, a system parameter corresponding to the BP of the user equipment itself. , thereby obtaining the slot format corresponding to its BP.
- the user equipment can obtain the slot format of multiple sets of system parameters included in the BP of its working by using the downlink control information. Therefore, when the user equipment operates in one or more BPs, the downlink control information in the group common control channel can be used to indicate to each UE the slot format used by its BP. Thereby saving channel resources and improving transmission efficiency.
- the at least one slot format indication is N slot format indications.
- the downlink control information in the method 200 includes N slot format indications, and each slot format indicates a corresponding set of system parameters.
- the at least one slot format indication is a reference slot format indication.
- the reference slot format indicates a slot format for indicating a reference system parameter of the N system parameters, and the user equipment can confirm a slot format of other system parameters by using a slot format of the reference system parameter.
- the downlink control information includes N information fields, and each of the N information fields corresponds to a set of system parameters, and each set of system parameters corresponds to a slot format indication.
- the figure is a schematic diagram of downlink control information in an implementation manner of an embodiment of the present application.
- the downlink control information includes N information fields: information domain 1 to information domain N, which respectively correspond to system parameter 1 to system parameter N.
- the N information fields are divided by bits.
- the downlink control information includes 20 bits (c1, c2, ..., c20), and how the bits are arranged in advance, for example, the first 4 bits correspond to the information field 1, and the second 4 bits correspond to Information field 2, and so on.
- the method further includes: the access network device sending, to the user equipment, a correspondence between the N information fields and the N sets of system parameters.
- information field 1 corresponds to system parameter 1
- system 2 corresponds to system parameter 3, and the like.
- the UE only needs to detect one downlink control information, and can obtain the slot format information of the corresponding BP system parameter, which reduces the complexity of the user equipment detection.
- the at least one downlink control information is N downlink control information, and each of the N downlink control information corresponds to one slot format indication.
- the at least one downlink control information includes N downlink control information: downlink control information 1 to downlink control information N, which respectively correspond to system parameter 1 to system parameter N.
- the N downlink control information corresponds to the N sets of system parameters, and each set of system parameters of the N sets of system parameters includes an identifier, where the identifier is used to scramble corresponding downlink control information.
- the system parameter includes an identifier, which may also be referred to as a system parameter corresponding to an identifier.
- the system parameter corresponds to an index through which the system parameters can be found.
- the access network device may send the corresponding relationship between the system identifier of each set of system parameters and the time slot type to the user equipment.
- the UE when the UE works in one or more BPs, only the downlink control information corresponding to the system parameters of the BP in which it works may be obtained. Therefore, in this embodiment, since each downlink control information is only for one system parameter, the UE does not need to acquire all N downlink control information, which reduces the detection complexity and overhead of the UE.
- the at least one downlink control information is a downlink control information
- the at least one slot format indication is a reference slot format indication, where the reference slot format indication is used to indicate the N The slot format of the reference system parameters in the system parameters.
- Determining, by the user equipment, the slot format of the bandwidth part corresponding to the user equipment according to the downlink control information including:
- the user equipment determines a slot format of the bandwidth portion according to the reference system parameter and the reference slot format.
- the user equipment determines, according to the correspondence between the reference system parameters and the reference slot format, a slot format of the bandwidth portion.
- the access network device sends a reference slot format of the reference system parameter to the user equipment, the user The device can determine the slot format of the system parameter corresponding to one or more BPs that the UE works according to the correspondence between multiple sets of system parameters.
- the subframe alignment means that the symbol types in the same time domain resource should be the same in a certain frequency domain, for example, all of them are uplink or downlink, or are all other types.
- the subcarrier spacing corresponding to the reference system parameter is a minimum value of the subcarrier spacing corresponding to the N system parameters, or the reference system parameter is a predefined system parameter.
- the manner of acquiring the slot type of other system parameters is: other system parameters and reference system parameters.
- the symbol types in the same time domain resource are the same.
- FIG. 5 is a schematic diagram of a correspondence between a bandwidth portion and a system parameter according to an implementation manner of an embodiment of the present application.
- the subcarrier spacings of two sets of different system parameters of two BPs such as BP0 and BP1 are 15 kHz and 30 kHz, respectively, and the normal CP time lengths are 0.5 ms and 0.25 ms, respectively. Therefore, in the length of time of 0.5 ms, BP0 includes 1 time slot and 7 symbols, for example, symbol 0-symbol 6, and BP1 includes 2 time slots and 14 symbols, for example, symbol 0-symbol 13.
- symbols 0 to 3 in BP0 are downlink subframes
- the symbols corresponding to BP1 are symbols 0 to 7 on the time domain resources occupied by symbols 0 to 3. Therefore, symbols 0 to 7 in BP1 should be It is a downlink subframe.
- symbols 5 to 6 in BP0 are uplink subframes
- symbols 10 to 13 in BP1 should be uplink subframes.
- the user equipment can determine the slot format of the system parameter of BP1 by the relationship between the system parameter of BP0 and the system parameter of BP1 and the slot format of the reference system parameter of BP0.
- the access network device only needs to send one downlink control information and a slot format corresponding to the system parameter, which reduces the total system overhead and improves the transmission efficiency.
- the value of the N is determined by at least one of the following methods:
- the value of the N corresponds to the number of sets of system parameters supported by the access network device
- N corresponds to a frequency range
- the value of the N is indicated by the access network device through the physical broadcast channel or the system message to the user equipment.
- the N sets of system parameters of the M bandwidth parts are understood as: N is the maximum number of system parameter sets supported by the access network device.
- the M BPs of the current group of user equipments may not correspond to the maximum number of system parameter sets that the access network equipment can support, but at this time, the access network equipment can still send the system of all sets that can be supported by the group of user equipments.
- the slot format of the parameter That is, the value of the N corresponds to the number of sets of maximum system parameters supported by the access network device.
- three BPs working in a group of user equipments can correspond to two sets of system parameters, but the maximum system parameter that the access network device can support is three sets, and the access network device can still send three sets of system parameters to the group of user equipments. .
- the three sets of system parameters are still referred to as three sets of system parameters of three bandwidth parts.
- the value of N corresponds to a frequency range.
- the frequency range is less than 1 G Hz, the value is 2, and between 1 G and 6 GHz, the value is 3.
- the access network device indicates the value of the N to the user equipment by using a physical broadcast channel or a system message, for example, by using a broadcast channel PBCH or a system message, such as remaining minimum system information (RMSI), The value is indicated to the user equipment.
- a physical broadcast channel or a system message for example, by using a broadcast channel PBCH or a system message, such as remaining minimum system information (RMSI).
- RMSI remaining minimum system information
- FIG. 6 is a schematic structural diagram of an access network device according to an embodiment of the present application.
- the access network device 600 includes:
- the processor 610 is configured to determine at least one downlink control information, where the downlink control information includes at least one slot format indication;
- the transceiver 620 is configured to send the downlink control information to a group of user equipments on a group common downlink control channel, where the group of user equipments works in M bandwidth parts, and the at least one slot format indication And a slot format corresponding to the N sets of system parameters indicating the M bandwidth parts, where N and M are both positive integers greater than 1.
- the slot format includes a symbol type in one slot.
- the symbol type is, for example, an up symbol, a down symbol or other symbol.
- the at least one slot format indication is N slot format indications.
- the at least one downlink control information is downlink control information, where the downlink control information is
- the N information fields are included, and each of the N information fields corresponds to a slot format indication.
- the N information fields are divided by bits.
- the corresponding relationship between the N information fields and the N sets of system parameters is sent to the user equipment.
- the at least one downlink control information is N downlink control information, and the N downlink controls are
- Each downlink control information in the information corresponds to a slot format indication.
- the N downlink control information corresponds to the N sets of system parameters, and the N sets of system parameters are
- Each set of system parameters includes an identifier for scrambling the corresponding downlink control information.
- the at least one downlink control information is a downlink control information
- the at least one slot format indication is a reference slot format indication, where the reference slot format indication is used to indicate the N systems.
- the slot format of the reference system parameters in the parameters is used to indicate the N systems.
- the subcarrier spacing corresponding to the reference system parameter is a minimum value of the subcarrier spacing corresponding to the N system parameters, or
- the reference system parameters are predefined system parameters.
- the value of the N is determined by at least one of the following methods:
- the value of the N corresponds to the number of sets of system parameters supported by the access network device
- N corresponds to a frequency range
- the value of the N is indicated by the access network device through the physical broadcast channel or the system message to the user equipment.
- the access network device 600 may correspond to the access network device in the method for indicating the time slot of the embodiment of the present application, and the foregoing and other management operations of each module in the access network device 600.
- the functions and/or functions are respectively omitted in order to implement the corresponding steps of the foregoing various methods, and are not described herein for brevity.
- the access network device can send the slot format of multiple sets of system parameters of the working BP to a group of user equipments through downlink control information. Therefore, when the user equipment operates in one or more BPs, the downlink control information in the group common control channel can be used to indicate to each UE the slot format used by its BP. Thereby saving channel resources and improving transmission efficiency.
- FIG. 7 is a schematic structural diagram of an access network device according to an embodiment of the present application.
- the access network device 700 includes:
- the transceiver 720 is configured to receive, on the group common downlink control channel, at least one downlink control information that is sent by the access network device to a group of user equipment, where the user equipment is one of the group of user equipments.
- the downlink control information includes at least one slot format indication, the group of user equipments operate in M bandwidth parts, and the at least one slot format indication is used to indicate that the N sets of system parameters of the M bandwidth parts correspond to Gap format, where N and M are positive integers greater than one; and
- the processor 710 is configured to determine, according to the downlink control information, a slot format of a bandwidth portion corresponding to the user equipment.
- the slot format includes a symbol type in one slot.
- the at least one slot format indication is N slot format indications.
- the at least one downlink control information is downlink control information, where the downlink control information is
- the N information fields are included, and each of the N information fields corresponds to a slot format indication.
- the N information fields are divided by bits.
- the receiving the access network device sends, to the user equipment, a correspondence between the N information fields and the N sets of system parameters.
- the at least one downlink control information is N downlink control information, and the N downlink controls are
- Each downlink control information in the information corresponds to a slot format indication.
- the N downlink control information corresponds to the N sets of system parameters, and the N sets of system parameters are
- Each set of system parameters includes an identifier for scrambling the corresponding downlink control information.
- the at least one downlink control information is a downlink control information
- the at least one slot format indication is a reference slot format indication, where the reference slot format indication is used to indicate the N systems.
- Determining, by the processor, the slot format of the bandwidth part according to the downlink control information specifically, the determining, by the processor, the slot format of the bandwidth part according to the reference system parameter and the reference slot format .
- the subcarrier spacing corresponding to the reference system parameter is a minimum value of the subcarrier spacing corresponding to the N system parameters, or
- the reference system parameters are predefined system parameters.
- the value of the N is determined by at least one of the following methods:
- the value of the N corresponds to the number of sets of system parameters supported by the access network device
- N corresponds to a frequency range
- the value of the N is indicated by the access network device through the physical broadcast channel or the system message to the user equipment.
- the user equipment 700 may correspond to the access network device in the method for indicating the time slot of the embodiment of the present application, and the foregoing and other management operations and/or functions of each module in the user equipment 700.
- the access network device in the method for indicating the time slot of the embodiment of the present application
- the foregoing and other management operations and/or functions of each module in the user equipment 700 In order to achieve the corresponding steps of the foregoing various methods, for the sake of brevity, no further details are provided herein.
- the user equipment can obtain the slot format of multiple sets of system parameters included in the BP of its working by using the downlink control information. Therefore, when the user equipment operates in one or more BPs, the downlink control information in the group common control channel can be used to indicate to each UE the slot format used by its BP. Thereby saving channel resources and improving transmission efficiency.
- the memory in each of the above embodiments may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory, such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory may further include a combination of the above types of memories.
- RAM random-access memory
- non-volatile memory such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD)
- the memory may further include a combination of the above types of memories.
- the processor in each of the above embodiments may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
- the processor may further include a hardware chip.
- the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
- the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present application, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
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Abstract
本申请实施例提供了一种控制信息的发送方法、接收方法及设备。该发送方法包括:接入网设备确定至少一个下行控制信息,其中,所述下行控制信息包括至少一个时隙格式指示;和所述接入网设备在组公共下行控制信道上,向一组用户设备发送所述下行控制信息,其中,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。本申请的时隙的指示方法能够满足新一代无线通信***的要求。
Description
本申请要求于2017年05月18日提交中国专利局、申请号为201710354252.8、申请名称为“一种时隙的指示方法、接入网设备和用户设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信领域,尤其涉及时隙的指示方法、接入网设备和用户设备。
在第五代无线接入***标准新空口(New Radio,NR)中,频域上的基本单位为一个子载波,时域上的基本单位为一个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号。资源元素(Resource Element,RE)为最小的的物理资源,包含一个OFDM符号内的一个子载波。
在第五代移动通信(the 5
th Generation,简称5G)新空口(New Radio,简称NR)标准化工作中,时域的基本调度单位为时隙(slot)或迷你时隙(mini-slot),这里为了简便统称为时隙。时隙由若干个OFDM符号组成。如图1所示,时隙可分为控制区域和数据区域,下行控制信道(Physical Downlink Control Channel,PDCCH)携带控制信息,例如下行控制信息(Downlink Control Information,DCI)。其中,下行控制信道包括组公共物理下行控制信道(Group Common PDCCH)和用户设备特定下行控制信道(UE-specific PDCCH)。
同时,NR支持灵活的时隙格式,即一个时隙中的符号可全部用于传输上行数据、全部用于传输下行数据、部分用于传输上行数据或者部分用于传输下行数据。时隙格式也可理解为时隙格式(Slot Format),或时隙格式相关信息(Slot format related information)。该时隙格式可由组公共物理下行控制信道中携带的控制信息进行指示。
另外,目前在5G***的讨论中提出了由于一个载波的最大带宽可以到400MHz,考虑到用户设备(User Equipment,UE)受限于最大带宽能力,当UE的最大带宽能力小于载波带宽能力的时候,基站无法直接在载波带宽的范围内为UE分配资源。在此情况下,基站分两步向UE分配资源,第一步向UE指示一个带宽部分(Bandwidth Part,BP),第二步在该BP的范围内向该UE分配资源。因此,不同的UE可能使用不同的BP,每个UE也可能使用多于一个BP。
由于不同的BP可能使用不同的***参数(numerology),不同的***参数对应不同的时隙格式,如何在组公共物理下行控制信道中指示每个UE的BP使用的时隙格式成为一个亟待解决的问题。
发明内容
本申请实施例提供了一种时隙的指示方法、控制信息的接收方法、接入网设备和 用户设备,能够为用户设备指示工作的带宽部分的***参数对应的时隙格式。
第一方面,提供了一种时隙的指示方法,包括:
接入网设备确定至少一个下行控制信息,其中,所述下行控制信息包括至少一个时隙格式指示;和
所述接入网设备在组公共下行控制信道上,向一组用户设备发送所述下行控制信息,其中,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。
第一个设计,根据第一方面,所述时隙格式包括一个时隙中的符号类型。
第二个设计,根据第一方面或第一方面的第一个设计,所述至少一个时隙格式指示为N个时隙格式指示。
第三个设计,根据第一方面的第二个设计,所述至少一个下行控制信息为一个下行控制信息,所述下行控制信息中包括N个信息域,所述N个信息域中的每个信息域对应一个时隙格式指示。
第四个设计,根据第一方面的第三个设计,所述N个信息域以比特位进行划分。
第五个设计,根据第一方面的第三个设计或第四个设计,所述方法还包括:所述接入网设备向所述用户设备发送所述N个信息域与所述N套***参数的对应关系。
第六个设计,根据第一方面的第二个设计,所述至少一个下行控制信息为N个下行控制信息,所述N个下行控制信息中的每个下行控制信息对应一个时隙格式指示。
第七个设计,根据第一方面的第六个设计,所述N个下行控制信息对应所述N套***参数,所述N套***参数的每套***参数包括一个标识,所述标识用于加扰对应的下行控制信息。
第八个设计,根据第一方面或第一方面的第一个设计,所述至少一个下行控制信息为一个下行控制信息,所述至少一个时隙格式指示为一个参考时隙格式指示,其中,所述参考时隙格式指示用于指示所述N个***参数中的参考***参数的时隙格式。
第九个设计,根据第一方面的第八个设计,所述参考***参数对应的子载波间隔为所述N个***参数对应的子载波间隔中的最小值,或者所述参考***参数为预定义的***参数。
第十个设计,根据第一方面或第一方面中之前的任何一个设计,所述N的取值通过以下至少一种方式进行确定:
所述N的取值与接入网设备支持的***参数的套数相对应;
所述N的取值与频率范围相对应;或者
所述N的取值由接入网设备通过物理广播信道或者***消息对用户设备进行指示。
第二方面,提供了一种时隙的指示方法,包括:
用户设备在组公共下行控制信道上,接收接入网设备为一组用户设备发送的至少一个下行控制信息,其中,所述用户设备为所述一组用户设备中的一个,所述下行控制信息包括至少一个时隙格式指示,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其 中,N和M均为大于1的正整数;和所述用户设备根据所述下行控制信息确定所述用户设备对应的带宽部分的时隙格式。
第一个设计,根据第二方面,所述时隙格式包括一个时隙中的符号类型。
第二个设计,根据第二方面或第二方面的第一个设计,所述至少一个时隙格式指示为N个时隙格式指示。
第三个设计,根据第二方面的第二个设计,所述至少一个下行控制信息为一个下行控制信息,所述下行控制信息中包括N个信息域,所述N个信息域中的每个信息域对应一个时隙格式指示。
第四个设计,根据第二方面的第三个设计,所述N个信息域以比特位进行划分。
第五个设计,根据第二方面的第三个设计或第四个设计,所述方法还包括:所述接入网设备向所述用户设备发送所述N个信息域与所述N套***参数的对应关系。
第六个设计,根据第二方面的第二个设计,所述至少一个下行控制信息为N个下行控制信息,所述N个下行控制信息中的每个下行控制信息对应一个时隙格式指示。
第七个设计,根据第二方面的第六个设计,所述N个下行控制信息对应所述N套***参数,所述N套***参数的每套***参数包括一个标识,所述标识用于加扰对应的下行控制信息。
第八个设计,根据第二方面或第二方面的第一个设计,所述至少一个下行控制信息为一个下行控制信息,所述至少一个时隙格式指示为一个参考时隙格式指示,其中,所述参考时隙格式指示用于指示所述N个***参数中的参考***参数的时隙格式,所述方法根据所述下行控制信息确定所述带宽部分的时隙格式,具体包括:所述用户设备根据所述参考***参数以及所述参考时隙格式,确定所述带宽部分的时隙格式。
第九个设计,根据第二方面的第八个设计,所述参考***参数对应的子载波间隔为所述N个***参数对应的子载波间隔中的最小值,或者所述参考***参数为预定义的***参数。
第十个设计,根据第二方面或第二方面中之前的任何一个设计,所述N的取值通过以下至少一种方式进行确定:
所述N的取值与接入网设备支持的***参数的套数相对应;
所述N的取值与频率范围相对应;或者
所述N的取值由接入网设备通过物理广播信道或者***消息对用户设备进行指示。
第三方面,提供了一种接入网设备,包括:
处理器,用于确定至少一个下行控制信息,其中,所述下行控制信息包括至少一个时隙格式指示;和
收发器,用于在组公共下行控制信道上,向一组用户设备发送所述下行控制信息,其中,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。
第三方面中的下行控制信息和N的取值等请参考第一方面中相应的描述,这里不 再赘述。
第四方面,提供了一种用户设备,包括:
收发器,用于在组公共下行控制信道上,接收接入网设备为一组用户设备发送的至少一个下行控制信息,其中,所述用户设备为所述一组用户设备中的一个,所述下行控制信息包括至少一个时隙格式指示,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数;和
处理器,用于根据所述下行控制信息确定所述用户设备对应的带宽部分的时隙格式。
第四方面中的下行控制信息和N的取值等请参考第二方面中相应的描述,这里不再赘述。
以上各方面提供的时隙的方法、接入网设备和用户设备,能够当用户设备工作在1个或多个带宽部分时,接入网设备利用组公共控制信道中的下行控制信息为每个UE指示其带宽部分使用的时隙格式。从而节省了信道资源,提高了传输效率,能够满足下一代无线通信***的要求。
图1是应用于本申请实施例无线通信***的示意图。
图2是根据本申请实施例的时隙的指示方法的示意性流程图。
图3是根据本申请实施例的一种实现方式的下行控制信息的结构示意图。
图4是根据本申请实施例的一种实现方式的下行控制信息的结构示意图。
图5是根据本申请实施例的一种实现方式的带宽部分和***参数对应关系的示意图。
图6是根据本申请实施例的一种接入网设备的结构示意图。
图7是根据本申请实施例的一种用户设备的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。
应理解,本申请实施例的的技术方案可以应用于各种通信***,例如:无线保真(wifi)、全球微波互联接入(Worldwide Interoperability for Microwave Access,WiMAX)、全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、先进的长期演进(Advanced long term evolution,LTE-A)***、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、5G***、以及第三代合作伙伴计划(The 3rd Generation Partnership Project,3GPP)相关的蜂窝***等,本申请实施例并不限定。
本申请实施例可以用于不同的制式的无线网络。接入网设备在不同的***中可以为不同的实体设备。例如,长期演进(Long Term Evolution,LTE)和LTE-A中接入网设备包括演进型基站(eNodeB,eNB),宽带码分多址(Wideband Code Division Multiple Access,WCDMA)中的接入网设备包括无线网络控制器(Radio Network Controller,RNC)和/或NodeB。类似地,全球微波互联接入(Worldwide Interoperability for Microwave Access,WiMax)等其它无线网络也可以使用与本申请实施例类似的方案。
还应理解,在本申请实施例中,用户设备也可称之为终端设备(Terminal Device)、移动台(MS,Mobile Station)、移动终端(Mobile Terminal)等,该用户设备可以经无线接入网(RAN,Radio Access Network)与一个或多个核心网进行通信,例如,用户设备可以是移动电话(或称为“蜂窝”电话)、具有通信功能的计算机等,例如,用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
本申请实施例提供的方法和装置,可以应用于用户设备或网络设备,该用户设备或网络设备包括硬件层、运行在硬件层之上的操作***层,以及运行在操作***层上的应用层。该硬件层包括中央处理器(central processing unit,CPU)、内存管理单元(memory management unit,MMU)和内存(也称为主存)等硬件。该操作***可以是任意一种或多种通过进程(process)实现业务处理的计算机操作***,例如,Linux操作***、Unix操作***、Android操作***、iOS操作***或windows操作***等。该应用层包含浏览器、通讯录、文字处理软件、以及即时通信软件等应用。并且,在本申请实施例中,传输信号的方法的执行主体的具体结构,本申请实施例并未特别限定,只要能够通过运行记录有本申请实施例的传输信号的方法的代码的程序,以根据本申请实施例的传输信号的方法进行通信即可,例如,本申请实施例的无线通信的方法的执行主体可以是用户设备或网络设备,或者,是用户设备或网络设备中能够调用程序并执行程序的功能模块。
此外,本申请实施例的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如,计算机可读介质可以包括,但不限于:磁存储器件(例如,硬盘、软盘或磁带等),光盘(例如,压缩盘(compact disc,CD)、数字通用盘(digital versatile disc,DVD)等),智能卡和闪存器件(例如,可擦写可编程只读存储器(erasable programmable read-only memory,EPROM)、卡、棒或钥匙驱动器等)。另外,本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于,无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
应理解,在本申请实施例中,术语“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系。例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。本申请实施例中的“第一”、“第二”只是用于区分,不代表先后或大小的含义。
图1是应用于本申请实施例无线通信***的示意图。如图1所示,该无线通信***100包括接入网设备102,接入网设备102可包括1个天线或多个天线例如,天线 104、106、108、110、112和114。另外,接入网设备102可附加地包括发射机链和接收机链,本领域普通技术人员可以理解,它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。网络设备102可以与多个用户设备(例如用户设备116和用户设备122)通信。然而,可以理解,网络设备102可以与类似于用户设备116或用户设备122的任意数目的用户设备通信。
如图2所示,用户设备116与天线112和114通信,其中天线112和114通过前向链路(也称为下行链路)118向用户设备116发送信息,并通过反向链路(也称为上行链路)120从用户设备116接收信息。此外,用户设备122与天线104和106通信,其中天线104和106通过前向链路124向用户设备122发送信息,并通过反向链路126从用户设备122接收信息。
图2是根据本申请实施例的时隙的指示方法200的示意性流程图。如图2所示,方法200包括如下内容。
210、接入网设备确定至少一个下行控制信息,其中,所述下行控制信息包括至少一个时隙格式指示。
可选的,所述时隙格式指示用于指示对应带宽部分的一个时隙中的符号类型,例如,时隙中的上行符号、下行符号和/或其他符号上行符号、下行符号和/或其他符号。具体的,该时隙格式指示可以指示对应带宽部分的一个时隙中哪个/哪些符号为上行符号,哪个/哪些符号为下行符号,和/或,哪个/哪些符号为其他符号。其他符号可以包含不为上行或下行的信息,如空白资源等。
220、接入网设备在组公共控制信道上,例如,组公共物理下行控制信道(group common PDCCH)上,向一组用户设备发送所述下行控制信息,其中,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。
如图2中所示出的,一个接入网设备可与多个用户设备进行通信。在本申请文件中,“一组用户设备”表示多个用户设备,可选的,该组用户设备的数目少于该接入网设备对应的小区中的全部用户设备。
组公共控制信道为该组用户设备使用的公共控制信道,该组用户设备在组公共控制信道上接收接入网设备发送给整组用户设备的公共下行控制信息。该组该下行控制信息指示的时隙格式对应的带宽部分为用户设备工作的带宽部分。相应的,用户设备在公共下行控制信道接收下行控制信息。
一组用户设备可以工作于M个带宽部分(bandwidth part,BP),换言之,接入网设备可以为一组用户设备中的每个用户设备分配一个或多个带宽部分。
一套***参数(numerology)可以定义为包括多项数据传输所使用的基本参数,例如子载波间隔(subcarrier spacing)和OFDM符号长度,也可以包括例如时隙长度和循环前缀(cyclic prefix,CP)长度等。其中,多套***参数的子载波间隔可以是以2
n为倍数成比例进行缩放的。例如,一套***参数中,子载波间隔为15kHz,正常CP时隙时间长度为0.5ms;另一套***参数中,子载波间隔为30kHz,正常CP时隙时间长度为0.25ms。
可选的,一组用户设备工作的M个BP的N套***参数可以理解为,该组用户设备工作的M个BP对应的N套***参数。其中M与N可以相等,也可以不相等。例如,若一组用户设备包括用户设备A和用户设备B。接入网设备为用户设备A配置了2个BP,该2个BP对应了2套不同的***参数,接入网设备为用户设备B也配置了2个BP,该2个BP也对应了2套不同的***参数。若用户设备A的2套***参数与用户设备B的2套***参数均不相同,则该组用户设备的BP的数目M为4,4个BP的***参数套数N也为4。若用户设备A的2套***参数与用户设备B的2套***参数中有一套***参数相同,则该组用户设备的BP的数目M为4,4个BP的***参数套数N为3。
230、用户设备根据下行控制信息,确定其工作的BP的时隙格式。
可选的,由于下行控制信息包括一组用户设备工作的M个工作带宽的N套***参数对应的时隙格式,用户设备可根据下行控制信息,查找该用户设备本身工作的BP对应的***参数,从而获取其BP对应的时隙格式。
综上,用户设备可通过下行控制信息,获取其工作的BP包括的多套***参数的时隙格式。因此,当用户设备工作在1个或多个BP时,可利用组公共控制信道中的下行控制信息为每个UE指示其BP使用的时隙格式。从而节省了信道资源,提高了传输效率。
以下介绍三种具体的实施方式,其中,实施方式一和实施方式二中,所述至少一个时隙格式指示为N个时隙格式指示。换言之,方法200中的下行控制信息包括N个时隙格式指示,每个时隙格式指示对应一套***参数;实施方式三中,所述至少一个时隙格式指示为一个参考时隙格式指示,该参考时隙格式指示用于指示所述N个***参数中的参考***参数的时隙格式,用户设备可通过该参考***参数的时隙格式,确认其他***参数的时隙格式。
实施方式一
在方法200中,所述下行控制信息中包括N个信息域,所述N个信息域中的每个信息域对应一套***参数,每套***参数对应一种时隙格式指示。
如图3所示,该图为本申请实施例的一种实现方式的下行控制信息示意图。所述下行控制信息包括N个信息域:信息域1至信息域N,分别对应***参数1至***参数N。
可选的,所述N个信息域以比特位进行划分。例所述下行控制信息包括20个比特位(c1,c2,…,c20),可预先定义这些比特是如何排列的,比如第一个4比特对应到信息域1,第二个4比特对应到信息域2,以此类推。
可选的,所述方法还包括:所述接入网设备向所述用户设备发送所述N个信息域与所述N套***参数的对应关系。例如,信息域1对应***参数1,***2对应***参数3等。
本实施方式下,UE只需检测一个下行控制信息,即可获取对应的BP的***参数的时隙格式信息,降低了用户设备检测的复杂度。
实施方式二
在方法200中,至少一个下行控制信息为N个下行控制信息,所述N个下行控制信息中的每个下行控制信息对应一个时隙格式指示。
如图4所示,该图为本申请实施例的一种实现方式的下行控制信息示意图。所述至少一个下行控制信息包括N个下行控制信息:下行控制信息1至下行控制信息N,分别对应***参数1至***参数N。
可选的,所述N个下行控制信息对应所述N套***参数,所述N套***参数的每套***参数包括一个标识,所述标识用于加扰对应的下行控制信息。***参数包括一个标识,又可称为***参数对应一个标识。例如,该***参数对应一个索引,通过该索引,可查找出该套***参数。
可选的,接入网设备可以将每套***参数的***标识与时隙类型的对应关系发送给用户设备。
可选的,当UE工作在1个或多个BP时,可仅获取其工作的BP的***参数对应的下行控制信息。因此,在本实施方式下,由于每个下行控制信息仅针对1个***参数,UE不用获取全部N个下行控制信息,降低了UE的检测复杂度和开销。
实施方式三
在方法200中,所述至少一个下行控制信息为一个下行控制信息,所述至少一个时隙格式指示为一个参考时隙格式指示,其中,所述参考时隙格式指示用于指示所述N个***参数中的参考***参数的时隙格式。
用户设备根据所述下行控制信息确定所述用户设备对应的带宽部分的时隙格式,包括:
所述用户设备确定所述用户设备工作的带宽部分的***参数;和
所述用户设备根据所述参考***参数以及所述参考时隙格式,确定所述带宽部分的时隙格式。
可选的,所述用户设备根据所述参考***参数的对应关系,以及所述参考时隙格式,确定所述带宽部分的时隙格式
具体的,由于多套***参数之间为成比例的缩放关系,同时多套***参数要求子帧对齐,当接入网设备向用户设备发送了一套参考***参数的参考时隙格式后,用户设备可根据多套***参数的对应关系,确定本UE工作的1个或多个BP对应的***参数的时隙格式。其中,子帧对齐是指在一定频域范围内同一时域资源中的符号类型应当是相同的,例如,均为上行或者均为下行,或均为其他类型。
可选的,所述参考***参数对应的子载波间隔为所述N个***参数对应的子载波间隔中的最小值,或者所述参考***参数为预定义的***参数。
可选的,当参考***参数对应的子载波间隔为所述N个***参数对应的子载波间隔中的最小值时,其他***参数的时隙类型的获取方式为:其他***参数与参考***参数的相同时域资源中的符号类型相同。
图5为根据本申请实施例的一种实现方式的带宽部分和***参数对应关系的示意图。的如图5所示,2个BP,例如BP0和BP1,的2套不同的***参数的子载波间隔分别为15kHz和30kHz,正常CP时间长度分别为0.5ms和0.25ms。因此,在0.5ms的时间长度中,BP0包括1个时隙7个符号,例如符号0-符号6,BP1包括2个时隙 14个符号,例如符号0-符号13。其中,BP0中的符号0至符号3为下行子帧,在符号0至符号3占用的时域资源上,BP1对应的符号为符号0至符号7,因此,BP1中的符号0至符号7应为下行子帧。同理,BP0中的符号5至符号6为上行子帧,相应的,BP1中的符号10至符号13应为上行子帧。
如图5所示,由于需要符号对齐,用户设备可通过BP0的***参数和BP1的***参数之间的关系,以及BP0的参考***参数的时隙格式,确定BP1的***参数的时隙格式。
在本实施方式中,由于接入网设备仅需发送一个下行控制信息和一种***参数对应的时隙格式,减少了***总的开销,提高了传输效率。
根据以上三种实施方式中任一种的方法,所述N的取值通过以下至少一种方式进行确定:
所述N的取值与接入网设备支持的***参数的套数相对应;
所述N的取值与频率范围相对应;或者
所述N的取值由接入网设备通过物理广播信道或者***消息对用户设备进行指示。
可选的,所述M个带宽部分的N套***参数可理解为:N为接入网设备支持的最大***参数套数。换言之,当前组用户设备工作的M个BP可能不对应接入网设备可支持的最大***参数套数,但此时,接入网设备仍可向该组用户设备发送其可支持的全部套数的***参数的时隙格式。即,所述N的取值与接入网设备支持的最大***参数的套数相对应。例如,当前一组用户设备工作的3个BP可对应2套***参数,但接入网设备可支持的最大***参数为3套,接入网设备仍可向该组用户设备发送3套***参数。此时,仍然称该3套***参数为3个带宽部分的3套***参数。
可选的,N的取值与频率范围相对应,例如,当频率范围小于1G Hz取值为2,1G到6GHz之间取值为3等。
可选的,接入网设备通过物理广播信道或者***消息对用户设备进行指示N的取值,例如通过广播信道PBCH或者***消息,比如剩余最小***信息(remaining minimum system information,RMSI),将N的取值指示给用户设备。
图6是根据本申请实施例的一种接入网设备的结构示意图。该接入网设备600包括:
处理器610,用于确定至少一个下行控制信息,其中,所述下行控制信息包括至少一个时隙格式指示;和
收发器620,用于在组公共下行控制信道上,向一组用户设备发送所述下行控制信息,其中,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。
可选的,所述时隙格式包括一个时隙中的符号类型。符号类型例如:上行符号、下行符号或其他符号。
可选的,所述至少一个时隙格式指示为N个时隙格式指示。
可选的,所述至少一个下行控制信息为一个下行控制信息,所述下行控制信息中
包括N个信息域,所述N个信息域中的每个信息域对应一个时隙格式指示。
可选的,所述N个信息域以比特位进行划分。
可选的,向所述用户设备发送所述N个信息域与所述N套***参数的对应关系。
可选的,所述至少一个下行控制信息为N个下行控制信息,所述N个下行控制
信息中的每个下行控制信息对应一个时隙格式指示。
可选的,所述N个下行控制信息对应所述N套***参数,所述N套***参数的
每套***参数包括一个标识,所述标识用于加扰对应的下行控制信息。
可选的,所述至少一个下行控制信息为一个下行控制信息,所述至少一个时隙格式指示为一个参考时隙格式指示,其中,所述参考时隙格式指示用于指示所述N个***参数中的参考***参数的时隙格式。
可选的,所述参考***参数对应的子载波间隔为所述N个***参数对应的子载波间隔中的最小值,或者
所述参考***参数为预定义的***参数。
可选的,所述N的取值通过以下至少一种方式进行确定:
所述N的取值与接入网设备支持的***参数的套数相对应;
所述N的取值与频率范围相对应;或者
所述N的取值由接入网设备通过物理广播信道或者***消息对用户设备进行指示。
应理解,根据本申请实施例的接入网设备600可对应于本申请实施例的时隙的指示方法中的接入网设备,并且接入网设备600中的各个模块的上述和其它管理操作和/或功能分别为了实现前述各个方法的相应步骤,为了简洁,在此不再赘述。
综上,接入网设备可通过下行控制信息,向一组用户设备发送其工作的BP的多套***参数的时隙格式。因此,当用户设备工作在1个或多个BP时,可利用组公共控制信道中的下行控制信息为每个UE指示其BP使用的时隙格式。从而节省了信道资源,提高了传输效率。
图7是根据本申请实施例的一种接入网设备的结构示意图。该接入网设备700包括:
收发器720,用于在组公共下行控制信道上,接收接入网设备为一组用户设备发送的至少一个下行控制信息,其中,所述用户设备为所述一组用户设备中的一个,所述下行控制信息包括至少一个时隙格式指示,所述一组用户设备工作于M个带宽部分,所述至少一个时隙格式指示用于指示所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数;和
处理器710,用于根据所述下行控制信息确定所述用户设备对应的带宽部分的时隙格式。
可选的,所述时隙格式包括一个时隙中的符号类型。
可选的,所述至少一个时隙格式指示为N个时隙格式指示。
可选的,所述至少一个下行控制信息为一个下行控制信息,所述下行控制信息中
包括N个信息域,所述N个信息域中的每个信息域对应一个时隙格式指示。
可选的,所述N个信息域以比特位进行划分。
可选的,接收所述接入网设备向所述用户设备发送所述N个信息域与所述N套***参数的对应关系。
可选的,所述至少一个下行控制信息为N个下行控制信息,所述N个下行控制
信息中的每个下行控制信息对应一个时隙格式指示。
可选的,所述N个下行控制信息对应所述N套***参数,所述N套***参数的
每套***参数包括一个标识,所述标识用于加扰对应的下行控制信息。
可选的,所述至少一个下行控制信息为一个下行控制信息,所述至少一个时隙格式指示为一个参考时隙格式指示,其中,所述参考时隙格式指示用于指示所述N个***参数中的参考***参数的时隙格式,
所述处理器根据所述下行控制信息确定所述带宽部分的时隙格式,具体包括:所述处理器根据所述参考***参数以及所述参考时隙格式,确定所述带宽部分的时隙格式。
可选的,所述参考***参数对应的子载波间隔为所述N个***参数对应的子载波间隔中的最小值,或者
所述参考***参数为预定义的***参数。
可选的,所述N的取值通过以下至少一种方式进行确定:
所述N的取值与接入网设备支持的***参数的套数相对应;
所述N的取值与频率范围相对应;或者
所述N的取值由接入网设备通过物理广播信道或者***消息对用户设备进行指示。
应理解,根据本申请实施例的用户设备700可对应于本申请实施例的时隙的指示方法中的接入网设备,并且用户设备700中的各个模块的上述和其它管理操作和/或功能分别为了实现前述各个方法的相应步骤,为了简洁,在此不再赘述。
综上,用户设备可通过下行控制信息,获取其工作的BP包括的多套***参数的时隙格式。因此,当用户设备工作在1个或多个BP时,可利用组公共控制信道中的下行控制信息为每个UE指示其BP使用的时隙格式。从而节省了信道资源,提高了传输效率。
以上各实施例中的存储器可以包括易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM);存储器也可以包括非易失性存储器(non-volatile memory),例如快闪存储器(flash memory)、硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD);存储器还可以包括上述种类的存储器的组合。
以上各实施例中的处理器可以是中央处理器(central processing unit,CPU)、网络处理器(network processor,NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,ASIC)、可编程逻辑器件(programmable logic device,PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,CPLD)、现场可编程逻辑门阵列(field-programmable gate array,FPGA)、通用阵列逻辑(generic array logic,GAL)或其任意组合。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元 及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请实施例的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (23)
- 一种时隙的指示方法,其特征在于,包括:确定下行控制信息;在组公共下行控制信道上,向一组用户设备发送所述下行控制信息,所述下行控制信息用于指示参考时隙格式,所述参考时隙格式对应参考***参数。
- 根据权利要求1所述的方法,其特征在于,所述参考时隙格式包括一个时隙中的符号类型。
- 根据权利要求1或2所述的方法,其特征在于,还包括:为所述一组用户设备中的用户设备配置用于通信的带宽部分;所述带宽部分对应的***参数不同于所述参考***参数。
- 根据权利要求1-3中任一项所述的方法,其特征在于,所述一组用户设备工作于M个带宽部分,所述参考时隙格式用于确定所述M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。
- 根据权利要求1-3中任一项所述的方法,其特征在于,所述一组用户设备工作于M个带宽部分,所述参考时隙格式是所述M个带宽部分的N套***参数中的参考***参数的时隙格式。
- 根据权利要求5所述的方法,其特征在于,所述参考***参数对应的子载波间隔为所述N套***参数对应的子载波间隔中的最小值,或者所述参考***参数为预定义的***参数。
- 根据权利要求4-6中任一项所述的方法,其特征在于,所述N的取值通过以下至少一种方式进行确定:所述N的取值与接入网设备支持的***参数的套数相对应;所述N的取值与频率范围相对应;或者所述N的取值通过物理广播信道或者***消息对用户设备进行指示。
- 一种时隙指示方法,其特征在于,包括:在组公共下行控制信道上,接收为一组用户设备发送的下行控制信息,所述下行控制信息用于指示参考时隙格式,所述参考时隙格式对应参考***参数;根据所述参考***参数、所述参考时隙格式、和用于通信的带宽部分对应的***参数,确定所述用于通信的带宽部分对应的时隙格式。
- 根据权利要求8所述的方法,其特征在于,所述用于通信的带宽部分对应的***参数不同于所述参考***参数。
- 根据权利要求8或9所述的方法,其特征在于,所述参考时隙格式包括一个时隙中的符号类型。
- 根据权利要求8-10中任一项所述的方法,其特征在于,所述一组用户设备工作于M个带宽部分,所述参考时隙格式用于确定M个带宽部分的N套***参数对应的时隙格式,其中,N和M均为大于1的正整数。
- 根据权利要求8-10中任一项所述的方法,其特征在于,所述一组用户设备工作于M个带宽部分,所述参考时隙格式是所述M个带宽部分 的N套***参数中的参考***参数的时隙格式。
- 根据权利要求12所述的方法,其特征在于,所述参考***参数对应的子载波间隔为所述N套***参数对应的子载波间隔中的最小值,或者所述参考***参数为预定义的***参数。
- 根据权利要求11-13任一项所述的方法,其特征在于,所述N的取值通过以下至少一种方式进行确定:所述N的取值与接入网设备支持的***参数的套数相对应;所述N的取值与频率范围相对应;或者所述N的取值通过物理广播信道或者***消息进行指示。
- 一种装置,用于实现如权利要求1至7中任一项所述的方法,或者用于实现如权利要求8至14中任一项所述的方法。
- 一种装置,其特征在于,包括:处理器,用于确定下行控制信息;和收发器,用于在组公共下行控制信道上,向一组用户设备发送所述下行控制信息,所述下行控制信息用于指示参考时隙格式,所述参考时隙格式对应参考***参数。
- 根据权利要求16所述的装置,其特征在于,所述参考时隙格式包括一个时隙中的符号类型。
- 根据权利要求16或17所述的装置,其特征在于,所述处理器还用于:为所述一组用户设备中的用户设备配置用于通信的带宽部分;所述带宽部分对应的***参数不同于所述参考***参数。
- 根据权利要求16至18中任一项所述的装置,其特征在于,所述装置为接入网设备。
- 一种装置,其特征在于,包括:收发器,用于在组公共下行控制信道上,接收为一组用户设备发送的下行控制信息,所述下行控制信息用于指示参考时隙格式,所述参考时隙格式对应参考***参数;和处理器,用于根据所述参考***参数、所述参考时隙格式、和用于通信的带宽部分对应的***参数,确定所述用于通信的带宽部分对应的时隙格式。
- 根据权利要求20所述的装置,其特征在于,所述用于通信的带宽部分对应的***参数不同于所述参考***参数。
- 根据权利要求20或21所述的装置,其特征在于,所述参考时隙格式包括一个时隙中的符号类型。
- 根据权利要求20至22中任一项所述的装置,其特征在于,所述装置为用户设备。
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