WO2024032301A1 - 一种通信方法以及装置 - Google Patents
一种通信方法以及装置 Download PDFInfo
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- WO2024032301A1 WO2024032301A1 PCT/CN2023/106761 CN2023106761W WO2024032301A1 WO 2024032301 A1 WO2024032301 A1 WO 2024032301A1 CN 2023106761 W CN2023106761 W CN 2023106761W WO 2024032301 A1 WO2024032301 A1 WO 2024032301A1
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- frequency band
- indication information
- band set
- terminal device
- pair
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- 238000000034 method Methods 0.000 title claims abstract description 103
- 238000004891 communication Methods 0.000 title claims abstract description 78
- 230000005540 biological transmission Effects 0.000 claims abstract description 238
- 238000004590 computer program Methods 0.000 claims description 14
- 238000001228 spectrum Methods 0.000 abstract description 21
- 230000006870 function Effects 0.000 description 50
- 238000010586 diagram Methods 0.000 description 22
- 230000011664 signaling Effects 0.000 description 18
- 239000010410 layer Substances 0.000 description 17
- 238000012545 processing Methods 0.000 description 17
- 239000000969 carrier Substances 0.000 description 15
- 230000002776 aggregation Effects 0.000 description 8
- 238000004220 aggregation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
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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
Definitions
- the present application relates to the field of wireless communications, and in particular, to a communication method and device.
- Uplink transmitter switching is a new feature introduced in the 5G evolution version.
- the terminal device switches the transmitter between carriers, and uses FDD carriers and TDD carriers in a time division multiplexing manner in the uplink, thereby fully aggregating the advantages of FDD uplink multiple time slots and TDD uplink large bandwidth in the time and frequency domain, maximizing utilization Uplink resources, increase network capacity, and increase uplink rate.
- the key word of UL Tx switching is switching.
- the terminal equipment transmitter continuously and dynamically switches between the two carriers, which is equivalent to opening an FDD carrier lane next to the TDD carrier.
- the FDD carrier is responsible for the uplink, and during the uplink time of the TDD carrier, it works simultaneously. , ensuring real-time high-speed online uplink.
- UL Tx switching only supports switching between two frequency bands, and terminal equipment can only report the ability to switch transmitters between two frequency bands. Switching between more frequency bands is not considered. As a result, the uplink transmission rate is limited.
- Embodiments of the present application provide a communication method and device to improve the data transmission rate and spectrum utilization efficiency of terminal equipment.
- inventions of the present application provide a communication method.
- the execution subject of the method may be a terminal device or a chip applied in the terminal device.
- the following description takes the execution subject being a terminal device as an example. Methods include:
- the terminal device When the terminal device receives the capability query message from the network device, the terminal device reports the capability information of the terminal device to the network device.
- the capability information includes a set of indication information of N frequency band set pairs. Where, N is a positive integer, that is to say, the terminal device may report a set of indication information for one frequency band set pair, or may report a set of indication information for multiple frequency band set pairs.
- Each indication information in the indication information set is associated with at least one frequency band set pair.
- the indication information instructs the terminal device to switch the transmission channel between the two frequency band sets in the associated frequency band set pair.
- Each frequency band set in the frequency band set pair includes at least one frequency band among L frequency bands (bands) in the frequency band set pair, where L is an integer greater than or equal to 2.
- L is an integer greater than or equal to 3.
- the transmission channel may refer to the radio frequency channel, the transmit channel (Tx branch) or the receive channel (Rx branch).
- the transmission channel may be an uplink transmitter or an uplink transmission link.
- the receiving channel may be a downlink receiver or a downlink transmit link.
- each frequency band set in at least one frequency band set pair includes one frequency band. If L is an integer greater than or equal to 3, then at least one frequency band set in at least one frequency band set pair includes at least two frequency bands. That is to say, the first frequency band set among the N frequency band set pairs includes at least two frequency bands. , and/or the second frequency band set in the frequency band set pair includes at least two frequency bands, and since the two frequency band sets in a frequency band set pair are not completely consistent, if L is an integer greater than or equal to 3, the frequency band set Yes, it involves switching scenarios of at least three frequency bands.
- the terminal equipment when the terminal equipment switches transmission channels involving at least three frequency bands, the terminal equipment can flexibly determine how to switch between the three and Switching transmission channels between the above frequency bands.
- the data transmission efficiency and spectrum utilization efficiency of terminal equipment switching transmission channels involving at least three frequency bands are higher than the data transmission efficiency of terminal equipment switching transmission channels involving two frequency bands. and spectrum utilization efficiency.
- the solution of the embodiment of the present application can support the switching of terminal equipment in at least three frequency bands, making the applicable scenarios for terminal switching of frequency bands more abundant, thereby improving the data transmission rate and spectrum utilization efficiency of the terminal equipment.
- N frequency band set pairs are associated with a frequency band combination (BC).
- the frequency band combination includes the frequency bands in the N frequency band set pairs supported by the terminal device. That is to say, the frequency bands in any frequency band set pair belong to the frequency band. combination.
- N frequency band set pairs are associated with one frequency band combination, which can also be understood as the terminal device reporting a set of indication information of the associated N frequency band set pairs for the one frequency band combination.
- the frequency band combination is a frequency band combination that supports transmission channel switching.
- One possible implementation manner is that the frequency band combination is a frequency band combination reported through the BandCombinationList-UplinkTxSwitch field.
- the L frequency bands in the frequency band set pair may be uplink frequency bands included in the frequency band combination; when the transmission channel is a receiving channel, the L frequency bands in the frequency band set pair may be downlink frequency bands included in the frequency band combination. frequency band.
- the frequency bands in the N frequency band set pairs are all frequency bands in the associated frequency band combination; in another possible implementation, the frequency bands in the N frequency band pair are all frequency bands in the associated frequency band combination. subset of the frequency band.
- the terminal device reports the capability information of the terminal device to the network device, including:
- the capability information of the terminal device is reported to the network device.
- the network device can determine the frequency band set pair corresponding to each indication information in the indication information set according to the corresponding relationship, that is to say , even if the indication information does not indicate that the frequency band set pair contains the frequency band identifiers of the two frequency band sets, the network device can still determine the frequency band set pair corresponding to the indication information, and the network device can determine that the frequency band set pair corresponding to the indication information is included in the frequency band set pair.
- Which frequency bands are used to switch transmission channels between two frequency band sets.
- the need to indicate the frequency band identifier also reduces the amount of data required for the indication information to indicate the frequency band identifier. From this, it can be seen that the signaling overhead of the terminal device reporting capability information to the network device is reduced.
- the corresponding relationship may be that the order of the indication information in the information set is related to the preset order of the N frequency band set pairs.
- the order of the indication information in the indication information set is the same as the order of the preset N frequency band set pairs.
- the indication information set includes N pieces of indication information, and the N pieces of indication information are in one-to-one correspondence with the N frequency band set pairs.
- the N frequency band set pairs have a preset order, so each indication information in the N indication information can uniquely correspond to a frequency band set pair. For example, the indication information at the first position in the indication information set corresponds to the first frequency band set pair, the indication information at the second position corresponds to the second frequency band set pair, and so on.
- the arrangement order of the N elements in the first preset table includes:
- Each element Eij among the N elements Eij is arranged in increasing order of columns and rows.
- the element Eij is the element in the i-th row and j-th column in the first preset table.
- the N frequency band set pairs are There is a corresponding relationship between the frequency band set of each frequency band set pair and the element Eij in the first preset table, where j is greater than i, 1 ⁇ i ⁇ K, j ⁇ K, i ⁇ K, K, i, j are all positive integers, and K is the number of frequency band sets associated with the frequency band combination.
- Q can be less than or equal to the number of transmission channels supported by the terminal device, or Q can be less than or equal to P.
- the number of transmission channels supported by the terminal equipment is 2, and a frequency band combination contains 3 uplink frequency bands, namely bandA, bandB, and bandC.
- the indication information indicates the switching time.
- the terminal device cannot transmit on the transmission channel during the switching time. For example, when the transmission channel is a transmission channel, the terminal device cannot send uplink during the switching time of the transmission channel.
- the network device learns the switching time capability of the terminal device, it can determine that the terminal device will not send uplink signaling or data during the switching time of the transmission channel switching between the two frequency band sets of the frequency band set pair, not because Uplink signaling or data is not received due to poor channel conditions and other reasons; network equipment will not allocate uplink resources or schedule uplink transmission during the switching time, which can avoid waste of wireless resources.
- the indication information includes the switching time
- the network device when the network device receives the indication information set, if the network device knows the frequency band set pair corresponding to the indication information, it can determine the two frequency band set pairs in each frequency band set pair. The switching time for transmission channel switching between frequency band sets.
- the switching time is related to the number of transmission channels configured by the frequency band in the frequency band set.
- the terminal equipment has two transmission channels, and the terminal equipment transmits on ⁇ frequency band B+frequency band C ⁇
- the terminal equipment transmits on frequency band A
- one of the transmission channels is used for transmission of frequency band B
- the other transmission channel is used for transmission of frequency band C
- the terminal equipment can be Both transmission channels of the equipment are used for the transmission of frequency band A, or one transmission channel of the terminal equipment can be used for the transmission of frequency band A.
- the terminal equipment uses one transmission channel for transmission of frequency band A, switches to two transmission channels for the transmission of ⁇ frequency band B + frequency band C ⁇ , and the terminal equipment uses two transmission channels for frequency band A.
- the switching time to use two transmission channels for transmission of ⁇ frequency band B + frequency band C ⁇ may be different. Therefore, the switching time needs to differentiate the number of transmission channels configured by the frequency bands in the frequency band set.
- Terminal equipment has the ability to report different switching times for the number of different transmission channels. When network equipment has different transmission configurations for carriers on the frequency band, it can determine how long the switching time should be paused to schedule uplink based on the reporting capabilities of the terminal equipment. .
- the indication information indicates a frequency band identifier for transmission channel switching between two frequency band sets.
- the frequency band identifier is an identity identifier of the frequency band, and a specific frequency band can be identified through the frequency band identifier. Therefore, the frequency band identifier can indicate the frequency bands included in each of the two frequency band sets for switching transmission channels.
- the terminal device can report the frequency band identifier of the frequency band set pair that the terminal device supports switching.
- the indication information indicates that the terminal device supports or does not support switching of transmission channels between two frequency band sets in a frequency band set pair.
- the terminal equipment may not necessarily be able to switch transmission channels between the two frequency band sets of the N frequency band set pairs.
- the frequency band set pairs that the terminal equipment supports for transmission channel switching are a subset of the N frequency band set pairs. Therefore, the embodiment of the present application uses indication information to indicate whether the terminal device supports or does not support transmission channel switching between two of the N frequency band set pairs, so that the network device can learn which frequency band set pairs are supported by the terminal device and whether they are not supported. Based on this, the network device can configure the terminal device to switch the transmission channel between the two frequency band sets of the supported frequency band set pair.
- the terminal device reports the capability information of the terminal device to the network device according to the preset corresponding relationship between the N frequency band set pairs and the indication information in the indication information set
- the purpose of reporting support and non-support for the N frequency band set pairs here is mainly to ensure that the one-to-one correspondence between the N frequency band set pairs and the N indication information in the indication information set is not disrupted.
- the indication information indicates that M frequency band set pairs among the N frequency band set pairs are associated with the same switching time, and each of the M frequency band set pairs includes the same frequency band, 2 ⁇ M.
- the indication information indicates that the M frequency band set pairs among the N frequency band set pairs are associated with the same switching time, and each of the M frequency band set pairs includes the same frequency band, 2 ⁇ M, Then when the terminal device reports capability information, it can only report one switching time for the same switching time, and does not need to report one switching time for each frequency band set pair. From this, it can be seen that the number of switching times in the capability information is less than N. Therefore, the embodiments of the present application can reduce the signaling overhead between the terminal device and the network device.
- the terminal device reports frequency band set pairs that meet preset conditions.
- the preset condition may be that at least one frequency band between the two frequency band sets in the frequency band set pair is the same.
- the terminal device can report frequency band set pairs that meet the constraint conditions, thereby adapting to different reporting scenarios.
- inventions of the present application provide a communication method.
- the execution subject of the method may be a network device or a chip applied in the network device.
- the beneficial effects can be found in the description of the first aspect and will not be repeated here.
- the following description takes the execution subject being a network device as an example. It includes: the network device sends a capability query message to the terminal device, and receives the capability information reported by the terminal device.
- the capability information includes a set of indication information of N frequency band set pairs, each indication information in the indication information set is associated with a frequency band set pair, and the indication information indicates the terminal equipment in the one frequency band set pair.
- the transmission channel is switched between two frequency band sets, the frequency band set includes at least one frequency band among the L frequency bands in the frequency band set pair, L is an integer greater than or equal to 3, and N is a positive integer.
- the network device After the network device receives the capability information, it can determine the switching time of each frequency band set pair according to the indication information in the indication information set. The switching time indicates the time for the terminal device to switch the transmission channel between the two frequency band sets in the frequency band set pair. .
- the solution of the embodiment of the present application can support the switching of terminal equipment in at least three frequency bands, making the applicable scenarios for terminal switching of frequency bands more abundant, thereby improving the data transmission rate and spectrum utilization efficiency of the terminal equipment.
- determining the switching time of each frequency band set pair according to the indication information in the indication information set includes: determining each frequency band set pair according to the corresponding relationship between the preset N frequency band set pairs and the indication information in the indication information set. Switching time of frequency band set pairs.
- the order of the indication information in the indication information set is the same as the order of the preset N frequency band set pairs.
- the order of the preset N frequency band set pairs exists with the order of the N elements in the second preset table.
- the second preset table may be the same as the first preset table, and the network device and the terminal device may determine the frequency band set pair corresponding to each indication information in the indication information set based on the same preset table.
- the arrangement order of the N elements in the second preset table includes:
- Each element Eij among the N elements is arranged in increasing order of columns and rows.
- the element Eij is the element in the i-th row and j-th column in the first preset table.
- the N frequency band set pairs are There is a corresponding relationship between the frequency band set of each frequency band set pair and the element Eij in the first preset table, where j is greater than i, 1 ⁇ i ⁇ K, j ⁇ K, K, i, and j are all positive integers, K is the number of frequency band sets associated with the frequency band combination.
- the K frequency band sets are composed of any Q frequency bands among the P frequency bands in the frequency band combination, and the K frequency band sets are in the first preset table in a preset order.
- Q is a positive integer.
- the switching time is related to the number of transmission channels configured by the frequency band in the frequency band set.
- the indication information indicates a frequency band identifier for transmission channel switching between two frequency band sets.
- the indication information indicates that the terminal device supports or does not support switching of the transmission channel between the two frequency band sets of the frequency band set pair.
- the indication information indicates that M frequency band set pairs among the N frequency band set pairs are associated with the same switching time, and each of the M frequency band set pairs includes the same frequency band, 2 ⁇ M.
- the switching time of the frequency band set pair is related to the time when the terminal device switches the transmission channel between any frequency band in one of the frequency band sets and any frequency band in the other frequency band set. Time related.
- the switching time of the frequency band set pair is the time when the terminal device switches the transmission channel between any frequency band in one of the frequency band sets and any frequency band in the other frequency band set. maximum time.
- the network device since the network device will consider that the terminal device does not have the ability to send uplink signaling or data during this switching period, it will not schedule uplink transmission. Therefore, the significance of taking the maximum value is that if the switching time considered by the network device is less than the actual transmission channel switching time of the terminal device, it may cause the network device to allocate uplink resources and schedule uplink transmission during the time when the terminal device cannot send uplink.
- the uplink data rate can be further increased by using the maximum time as the switching time of the band set pair.
- a third aspect provides a communication device.
- the beneficial effects can be found in the description of the first aspect and will not be described again here.
- the communication device has the function of implementing the behavior in the method example of the first aspect.
- the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above functions.
- the communication device includes: a transceiver module, configured to receive a capability query message from a network device; and a processing module, configured to report capability information of a terminal device to the network device.
- the capability information An indication information set including N frequency band set pairs, each indication information in the indication information set is associated with one frequency band set pair, and the indication information indicates that the terminal device is in two frequency band sets in the one frequency band set pair.
- the transmission channel is switched between the frequency band sets, the frequency band set includes at least one frequency band among the L frequency bands in the frequency band set pair, L is an integer greater than or equal to 3, and N is a positive integer.
- a fourth aspect provides a communication device.
- the beneficial effects can be found in the description of the second aspect and will not be described again here.
- the communication device has the function of implementing the behavior in the method example of the second aspect.
- the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above functions.
- the communication device includes: a transceiver module, configured to send a capability query message, and receive capability information reported by the terminal device, where the capability information includes a set of indication information for N frequency band set pairs, and the indication Each indication information in the information set is associated with a frequency band set pair, and the indication information instructs the terminal device to switch transmission channels between two frequency band sets in the frequency band set pair, and the frequency band set includes all At least one frequency band among the L frequency bands in the pair of frequency band sets, L is an integer greater than or equal to 3, and N is a positive integer; a processing module, configured to determine each frequency band set according to the indication information in the indication information set The switching time of the pair indicates the time when the terminal device performs transmission channel switching between the two frequency band sets in the frequency band set pair.
- a transceiver module configured to send a capability query message, and receive capability information reported by the terminal device, where the capability information includes a set of indication information for N frequency band set pairs, and the indication Each indication information in the information set is associated with a frequency band
- embodiments of the present application provide a communication device, including a processor and an interface circuit.
- the interface circuit is used to receive signals from other communication devices and transmit them to the processor or to send signals from the processor to other communication devices.
- the processor is used to implement the method of the first aspect through logical circuits or execution of code instructions.
- embodiments of the present application provide a communication device, including a processor and an interface circuit.
- the interface circuit is used to receive signals from other communication devices and transmit them to the processor or to send signals from the processor to other communication devices.
- the processor is used to implement the method of the first aspect through logical circuits or execution of code instructions.
- embodiments of the present application provide a computer-readable storage medium, including computer program instructions.
- the processor When the computer program instructions are executed by a processor, the processor performs the steps of the method of the first aspect or the second aspect.
- inventions of the present application provide a computer program product.
- the computer program product includes software code, and the software code is used to execute the steps of the method of the first aspect or the second aspect.
- the present application provides a chip system.
- the chip system includes a processor and is used to implement the functions of the terminal device in the methods of the above aspects.
- the chip system further includes a memory for storing program instructions and/or data.
- the chip system may be composed of chips, or may include chips and other discrete devices.
- the present application provides a chip system.
- the chip system includes a processor and is used to implement the functions of the network device in the methods of the above aspects.
- the chip system further includes a memory for storing program instructions and/or data.
- the chip system may be composed of chips, or may include chips and other discrete devices.
- this application provides a communication method, including: a network device sending communication query information.
- the terminal device receives the energy query information.
- the terminal device reports the capability information of the terminal device to the network device.
- the capability information includes a set of indication information of N frequency band set pairs. Each indication information in the indication information set is associated with a frequency band set pair.
- the indication information Instruct the terminal equipment to switch transmission channels between two frequency band sets in the frequency band set pair, the frequency band set includes at least one frequency band among L frequency bands in the frequency band set pair, L is greater than Or an integer equal to 3, N is a positive integer.
- the network device receives the capability information reported by the terminal device, and determines the switching time of each frequency band set pair according to the indication information in the indication information set.
- the switching time indicates the switching time of the terminal device in the frequency band set pair. The time for transmission channel switching between two frequency band sets.
- this application provides a communication system, including a terminal device for performing the method of the first aspect and a network device for performing the second aspect.
- Figure 1 is an architectural schematic diagram of a communication system applied in the application embodiment of this application;
- Figure 2 is a schematic diagram of a frequency band combination provided by an embodiment of the present application.
- Figure 3 is a schematic structural diagram of a UE capability provided by an embodiment of the present application.
- Figure 4 is a schematic flow chart of a communication method provided by an embodiment of the present application.
- Figure 5 is a schematic diagram of a frequency band involved in a switch provided in an embodiment of the present application.
- FIG. 6 is a schematic diagram of the frequency band involved in another switch provided by the embodiment of the present application.
- FIG. 7 is a schematic diagram of the frequency band involved in another switch provided by the embodiment of the present application.
- Figure 8 is a schematic diagram of the frequency band involved in another switch provided by the embodiment of the present application.
- FIG. 9 is a schematic diagram of the frequency band involved in another switch provided by the embodiment of the present application.
- FIG. 10 is a schematic diagram of the frequency band involved in another switch provided by the embodiment of the present application.
- Figure 11 is a schematic flow chart of another communication method provided by an embodiment of the present application.
- Figure 12 is a schematic flow chart of another communication method provided by an embodiment of the present application.
- Figure 13 is a schematic structural diagram of a communication device provided by the application embodiment of the present application.
- Figure 14 is a schematic structural diagram of another communication device provided by the application embodiment of the present application.
- Figure 15 is a schematic structural diagram of a network device provided by an embodiment of the present application.
- Figure 1 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
- FIG. 1 is a schematic architectural diagram of a communication system 1000 applied according to the application embodiment of this application.
- the communication system includes a wireless access network 100 and a core network 200.
- the communication system 1000 may also include the Internet 300.
- the radio access network 100 may include at least one radio access network device (110a and 110b in Figure 1), and may also include at least one terminal device (120a-120j in Figure 1).
- Terminal equipment also known as user equipment (UE, User Equipment), is connected to wireless access network equipment through wireless means, and wireless access network equipment is connected to the core network through wireless or wired means.
- UE User Equipment
- the core network equipment and the radio access network equipment can be independent and different physical devices, or the functions of the core network equipment and the logical functions of the radio access network equipment can be integrated on the same physical device, or they can be one physical device. It integrates the functions of some core network equipment and some functions of wireless access network equipment. Terminal devices and terminal devices and wireless access network devices and wireless access network devices may be connected to each other in a wired or wireless manner.
- Figure 1 is only a schematic diagram.
- the communication system may also include other network equipment, such as wireless relay equipment and wireless backhaul equipment, which are not shown in Figure 1 .
- Wireless access network equipment is an access equipment for terminal equipment to wirelessly access the communication system.
- Wireless access network equipment can be a base station, an evolved base station (evolved NodeB, eNodeB), a transmission reception point (TRP), or the next generation of the fifth generation (5th generation, 5G) mobile communication system.
- Base station (next generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also complete the base station part
- a functional module or unit for example, can be a centralized unit (CU) or a distributed unit (DU).
- the CU here completes the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also complete the functions of the service data adaptation protocol (SDAP); DU completes the functions of the base station
- the functions of the wireless link control layer and medium access control (MAC) layer can also complete some or all of the physical layer functions.
- the wireless access network equipment may be a macro base station (110a in Figure 1), a micro base station or an indoor station (110b in Figure 1), or a relay node or donor node.
- the application embodiments of this application do not limit the specific technology and specific equipment form used by the wireless access network equipment.
- the following description takes a base station as an example of a radio access network device.
- the terminal device is a device with wireless transceiver function that can send signals to the base station or receive signals from the base station.
- Terminal equipment can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal equipment, etc.
- Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), and the Internet of Things (internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc.
- Terminal devices can be mobile phones, tablets, computers with wireless transceiver functions, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc.
- the application embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
- Base stations and terminal equipment can be fixed-location or mobile. Base stations and terminal equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites.
- the application embodiments of this application do not limit the application scenarios of base stations and terminal equipment.
- the helicopter or drone 120i in Figure 1 may be configured as a mobile base station.
- the terminal Device 120i is a base station; but for the base station 110a, 120i is a terminal device, that is, communication between 110a and 120i is carried out through a wireless air interface protocol.
- communication between 110a and 120i can also be carried out through an interface protocol between base stations.
- base stations and terminal equipment can be collectively called communication devices.
- 110a and 110b in Figure 1 can be called communication devices with base station functions
- 120a-120j in Figure 1 can be called communication devices with terminal equipment functions.
- Communication between base stations and terminal equipment, between base stations and base stations, and between terminal equipment and terminal equipment can be carried out through licensed spectrum, communication can be carried out through unlicensed spectrum, or communication can be carried out through licensed spectrum and unlicensed spectrum at the same time; yes It is possible to communicate using a spectrum below 6 gigahertz (GHz), a spectrum above 6 GHz, or both a spectrum below 6 GHz and a spectrum above 6 GHz.
- GHz gigahertz
- the application embodiments of this application do not limit the spectrum resources used for wireless communication.
- the functions of the base station can also be performed by modules (such as chips) in the base station, or can also be performed by a control subsystem that includes the base station functions.
- the control subsystem containing base station functions here can be the control center in the above application scenarios such as smart grid, industrial control, smart transportation, smart city, etc.
- the functions of the terminal equipment can also be performed by modules in the terminal equipment (such as chips or modems), or can be performed by devices containing the functions of the terminal equipment.
- the base station sends downlink signals or downlink information to the terminal equipment, and the downlink information is carried on the downlink channel;
- the terminal equipment sends uplink signals or uplink information to the base station, and the uplink information is carried on the uplink channel.
- the terminal device In order to communicate with the base station, the terminal device needs to establish a wireless connection with the cell controlled by the base station.
- the cell that has established a wireless connection with the terminal device is called the serving cell of the terminal device.
- the serving cell of the terminal device When the terminal equipment communicates with the serving cell, it will also be interfered by signals from neighboring cells.
- the time domain symbol may be an orthogonal frequency division multiplexing (OFDM) symbol or a discrete Fourier transform-spread-OFDM (Discrete Fourier Transform-spread-OFDM, DFT-s-OFDM) symbols.
- OFDM orthogonal frequency division multiplexing
- DFT-s-OFDM discrete Fourier Transform-spread-OFDM
- PDSCH, PDCCH and PUSCH are only examples of downlink data channels, downlink control channels and uplink data channels respectively.
- data channels and control channels Channels may have different names, and the application embodiments of this application do not limit this.
- Carrier aggregation technology refers to providing services to UE through multiple carriers at the same time.
- Each carrier can have at least one serving cell CC (component carrier) working for the UE.
- CC component carrier
- PCC primary CC
- SCC secondary CC
- the secondary cell can be activated and deactivated during use. If there is no data transmission for a period of time, the network may deactivate the secondary cell. When data is sent again in the future, the network may consider reactivating the secondary cell.
- Carrier aggregation includes multiple carrier aggregation in a single frequency band and multiple carrier aggregation in multiple frequency bands.
- Band B has multiple carriers, namely CC2 and CC3.
- Band C has multiple carriers, namely CC4 and CC5.
- Different UEs have different capabilities due to different hardware or software versions.
- the network needs to know the capabilities of the UE in order to configure an appropriate working mode for the UE.
- the 5G UE capability structure has different levels of UE capability ownership, including but not limited to UE-level capabilities (called perUE capabilities), frequency band-level capabilities (per frequency band), frequency band combinations (frequency band combination, BC) level of ability (called per BC ability).
- Band-level capabilities are capabilities related to specific frequency bands. Frequency band combinations are often used to indicate the carrier aggregation capabilities of terminal equipment. Each frequency band combination contains one or more frequency bands. The capability of the frequency bands in the frequency band combination is called per BCper frequency band capability. Each frequency band in the frequency band combination contains one or more carriers. The carrier capability of the frequency band in the frequency band combination It is called per BC perCC capability. In conventional CA operations, concurrent transmission between multiple carriers is allowed.
- the UE can transmit on both CCs at the same time.
- it can be divided into single transmission and dual transmission. If the UE has two transmission channels, it can report MIMO (multiple-in multipleout, multiple-in multipleout) layer number 2 on one carrier, indicating that it can support dual-layer transmission. If the UE reports the support layer number 2 on two carriers at the same time, it means that multiple carriers can concurrently transmit layer 2 (2+2). At this time, the UE needs to support 4 transmission channels.
- MIMO multiple-in multipleout, multiple-in multipleout
- the optional capability set may include multiple optional capabilities, which may represent multiple optional capabilities that can be supported by the terminal device, such as optional capability 1, optional capability 2, and optional capability 3 shown in Table 1.
- the base station generally selects a capability to configure the UE working mode. If you select capability 2 and configure two subcarriers for the UE, each carrier can only support one layer of MIMO. If you want to change to capability 1, you need to redo the RRC configuration and switch to 1 carrier 2-layer MIMO mode. The efficiency is relatively low.
- the concept of TX switching is introduced in the standard. The UE can support Layer 2 MIMO on CC1 and Layer 2 MIMO on CC2, but at the same time tells the base station that it cannot use 2+2 MIMO transmission at the same time (through the Band of TX switching). combination to indicate).
- the base station can configure UE with 2 carriers (CC1+CC2, or CC2+CC3), but when scheduling, control CC1 and CC2 (or CC2, CC3) will not use layer 2 MIMO at the same time, and switch from the following transmission modes through scheduling control, among which An example is shown in Table 3:
- the transmission mode set may include multiple transmission modes, which may represent multiple transmission modes that can be supported by the terminal device, such as transmission mode 1, transmission mode 2 and transmission mode 3 shown in Table 1.
- the transmission mode can be controlled through scheduling, there is no need to perform RRC reconfiguration, which improves the efficiency of inter-carrier transmission.
- the terminal can also report the corresponding switching time for each Band pair.
- Table 4 One example is shown in Table 4:
- Txswithing only supports the working mode of 2 Bands. Scenarios in which more Bands participate are not considered. For example, the example of the following 3 Bands is shown in Table 5:
- the data transmission efficiency and spectrum utilization efficiency of the terminal equipment when switching transmission channels involving at least three frequency bands are higher than the data transmission efficiency and spectrum utilization efficiency of the terminal equipment when switching transmission channels involving two frequency bands.
- the current technical solution can only support two frequency bands to participate in the switch, and cannot support the terminal device to participate in the switch in at least three frequency bands, resulting in limited data transmission rate and spectrum utilization of the terminal device in switching. Therefore, the following application embodiments describe how a terminal device can improve the data transmission rate and spectrum utilization efficiency of the terminal device.
- the communication method and device provided by this application can be applied to scenarios that require certain data transmission capabilities.
- some actual scenarios are used as examples to illustrate the application scenarios of the embodiments of the present application, but this is not a limitation.
- FIG 4 is a schematic flow chart of a communication method provided by an embodiment of the present application.
- the network device sends a capability query message to the terminal device.
- the terminal device reports the capability information of the terminal device to the network device.
- the capability information includes a set of indication information of N frequency band set pairs.
- each indication information in the indication information set is associated with a frequency band set pair, and the indication information instructs the terminal device to switch the transmission channel between two frequency band sets in a frequency band set pair, and the frequency band set includes L in the frequency band set pair. At least one frequency band among the frequency bands, N is a positive integer.
- the capability information may be reported by the terminal device in response to the capability query message.
- the transmission channel that the terminal device switches can be an uplink transmit channel or a downlink receive channel. Specifically, if the method of the embodiment of the present application is used in the uplink service of the terminal device, the transmission channel is the uplink transmission channel, and the frequency band is the uplink frequency band; if the method of the embodiment of the present application is used in the downlink service of the terminal device, then The transmission channel is the downlink receiving channel, and the frequency band is the downlink frequency band.
- the "switching of transmission channels between two frequency band sets" described here can also be understood/replaced as, switching of transmission channels between carriers of the two frequency band sets.
- L is an integer greater than or equal to 2.
- two frequency band sets in a frequency band set pair do not completely overlap, and each frequency band set in a frequency band set pair includes at least one frequency band.
- each frequency band set in a pair of frequency band sets includes one frequency band.
- L is an integer greater than or equal to 3
- at least one frequency band set in a frequency band set pair includes at least two frequency bands. For example, assuming that a frequency band set pair includes frequency band A and frequency band B, and L is 3, then one of the frequency band set pairs of the frequency band set pair includes frequency band A, and the other frequency band set includes frequency band B.
- a frequency band set pair includes frequency band A, frequency band B and frequency band C.
- L is 3.
- one of the frequency band sets is the first frequency band set and the other frequency band set is the second frequency band set. Then in this frequency band set pair
- the two frequency band sets include but are not limited to the following situations:
- Scenario 1 The first frequency band set includes frequency band A, and the second frequency band set includes concurrent frequency band B and frequency band C.
- Scenario 2 The first frequency band set includes concurrent frequency bands A and B, and the second frequency band set includes frequency band C.
- Scenario 3 The first frequency band set includes concurrent frequency band A and frequency band B, and the second frequency band set includes concurrent frequency band B and frequency band C.
- Scenario 4 The first frequency band set includes frequency band A, and the second frequency band set includes frequency band B.
- N is a positive integer, that is to say, N can be equal to 1 or greater than or equal to 2.
- N frequency band set pairs can be as shown in Table 7:
- the number of frequency bands in a frequency band set may be related to the number of transmission channels of the terminal device. Generally, the number of frequency bands in a frequency band set does not exceed the number of transmission channels of the terminal device.
- the terminal device includes Q data transmission input channel, then the total number of frequency bands in a frequency band set ⁇ Q.
- the network device determines the switching time of at least one frequency band set pair according to the indication information in the indication information set.
- the switching time indicates the time for the terminal device to switch the transmission channel between the two frequency band sets in the frequency band set pair.
- the switching time can be understood as the time required for one of the frequency band sets to switch to the other frequency band set.
- At least one frequency band set in at least one frequency band set pair includes at least two frequency bands, that is, the first of the N frequency band set pairs
- the frequency band set includes at least two frequency bands
- the second frequency band set in the frequency band set pair includes at least two frequency bands, and since the two frequency band sets in a frequency band set pair are not completely consistent, if L is greater than or equal to
- the frequency band set pair involves switching scenarios of at least three frequency bands (bands).
- the terminal equipment when the terminal equipment switches transmission channels involving at least three frequency bands, the terminal equipment can flexibly determine how to switch between the three and The transmission channel is switched between the above frequency bands, so the data transmission rate is higher than the data transmission rate in which the terminal equipment can only switch the transmission channel between the two frequency bands. Therefore, the solution of the embodiment of the present application can support the terminal equipment involved in The switching of at least three frequency bands enriches the applicable scenarios for terminals to switch frequency bands, thus improving the data transmission rate and spectrum utilization efficiency of terminal equipment.
- the transmission channels supported or used by the frequency band can be understood as the transmission channels supported or used by the terminal equipment when communicating with the carrier on the frequency band.
- the number of transmission channels can correspond to the MIMO layer supported by the terminal equipment when using the MIMO transmission method. number. For example, one transmit channel corresponds to uplink 1 MIMO layer (1 MIMO layer), and two transmit channels correspond to uplink 2 MIMO layers (2 MIMO layer).
- each frequency band set pair does not necessarily have a switching time. If the terminal device does not support switching for a certain frequency band set pair, there will be no switching time for the frequency band set pair.
- the terminal equipment can only report transmission channel switching involving at least three frequency bands, but can report transmission channel switching involving two Transmission channel switching of frequency bands can also be reported involving transmission channel switching of at least three frequency bands.
- the embodiment of the present application provides a method of reporting the transmission channel switching capability of a terminal device.
- the present invention does not limit the configuration of the transmission channel switching of the terminal device by the network device.
- the configuration of network equipment needs to meet the capabilities of the terminal device, that is, it does not exceed the capabilities of the terminal device.
- FIG 5 is a schematic diagram of a frequency band involved in a switch provided by an embodiment of the present application.
- the terminal device uses 2 transmission channels for transmission on frequency band B, and switches to a transmission mode for using 1 transmission channel on frequency band A and another transmission channel on frequency band C.
- the terminal participates in the switch involving three frequency bands: frequency band A, frequency band B, and frequency band C.
- FIG. 6 is a schematic diagram of frequency bands involved in another switch provided by an embodiment of the present application.
- the terminal equipment needs to carry data in one transmission channel through the carrier of frequency band B, switch to a state where one transmission channel carries data through the carrier of frequency band A, and another transmission channel uses the carrier of frequency band C.
- the working status of carrying data In this illustration, the terminal participates in the switch involving three frequency bands: Band A, Band B, and Band C.
- the number of transmission channels used by the terminal equipment before the switch may not be consistent with the number of transmission channels used by the terminal equipment after the switch.
- FIG 7 is a schematic diagram of the frequency band involved in another switch provided by an embodiment of the present application.
- the terminal equipment supports three frequency bands: Band A, Band B and Band C to participate in the switch.
- the terminal equipment can also use Band B on two transmission channels.
- the working state of the carrier carrying data is switched to the working state of carrying data through the carrier of frequency band C in the two transmission channels.
- the terminal equipment can also switch transmission channels between the two frequency bands.
- FIG. 8 is a schematic diagram of frequency bands involved in another switch provided by an embodiment of the present application.
- the terminal equipment needs to carry data through the carrier of frequency band A in one of the transmission channels and carry data through the carrier of frequency band B in the other transmission channel. Switch to the working state of carrying data through the carrier of frequency band B in one of the transmission channels.
- the carrier carries data and another transmission channel carries data through the carrier of frequency band C.
- the terminal participates in the switch involving three frequency bands: frequency band A, frequency band B, and frequency band C.
- the frequency bands involved before the switch and the frequency bands involved after the switch can have the same parts.
- FIG. 9 is a schematic diagram of frequency bands involved in another switch provided by an embodiment of the present application.
- the terminal equipment needs to carry data through the carrier of frequency band A in one transmission channel and carry data through the carrier of frequency band B in the other transmission channel, switch to An operating state in which one transmission channel carries data through the carrier of frequency band C and the other transmission channel carries data through the carrier of frequency band D.
- the terminal participates in the switch involving four frequency bands: frequency band A, frequency band B, frequency band C, and frequency band D.
- FIG 10 is a schematic diagram of the frequency bands involved in another switch provided by the embodiment of the present application.
- the terminal equipment supports four frequency bands: Band A, Band B, Band C and Band D to participate in the switch.
- the terminal equipment carries data through the carrier of Band B in two transmission channels.
- Working state switch to the working state of carrying data through the carrier of frequency band C in two transmission channels.
- the terminal device can also switch the transmission channel between the two frequency bands.
- the number of frequency bands involved in the transmission channel switching may be less than the number of frequency bands that the terminal equipment can perform transmission channel switching. , therefore, the number of frequency bands corresponding to the indication information set reported by the terminal equipment can be less than the number of frequency bands that the terminal equipment can switch transmission channels.
- the number of frequency band indication information sets to be reported by the terminal equipment can be reported as needed. This embodiment is not limiting.
- the indication information in the indication information set may correspond to each frequency band set pair individually, that is, the number of indication information is consistent with the number of frequency band set pairs.
- one of the indication information may correspond to at least two frequency band set pairs, that is, the number of indication information is less than the number of frequency band set pairs.
- one of the indication information may correspond to at least two frequency band set pairs. Therefore, the number of indication information in the indication information set reported by the terminal device Less than the number of frequency band set pairs can reduce the signaling overhead of terminal equipment reporting capability information.
- the terminal device reports frequency band set pairs that meet preset conditions.
- the preset condition may be that at least one frequency band between the two frequency band sets in the frequency band set pair is the same.
- the preset conditions can be set as needed, and are not limited in this embodiment.
- the terminal device can report frequency band set pairs that meet the constraint conditions, thereby adapting to different reporting scenarios.
- the network device determines the switching time of the frequency band set pair through the indication information in the indication information set is related to factors such as the specific content of the indication information and the reporting method of the indication information. Therefore, the following application embodiments are based on any of the above application embodiments, based on factors such as the specific content of the instruction information reported by the terminal device and the way in which the terminal device reports the instruction information, combined with the network device determining each instruction based on the instruction information in the instruction information set. The method of switching time for each frequency band set pair is explained.
- the specific content of the instruction information reported by the terminal device is taken as an example, and how the network device determines the switching method for each frequency band set pair is explained.
- the functions of the indication information include but are not limited to indicating switching time, indicating frequency band identifiers for switching transmission channels between two frequency band sets in a frequency band set pair, and indicating whether the terminal equipment supports or does not support switching between two frequency band set pairs. At least one of switching transmission channels between frequency band sets.
- the following application embodiments respectively describe the instruction information.
- the instruction information is used to indicate the switching time for explanation.
- the indication information includes the switching time
- the network device receives the indication information set, if it can clearly understand the frequency band set pair corresponding to the indication information, it can determine the switching time of each frequency band set pair.
- the switching time is related to the number of transmission channels configured by the frequency band in the frequency band set. Taking the terminal device including two transmission channels as an example, the switching time can also be divided into the time of switching one transmission channel and the time of switching two transmission channels.
- the terminal equipment includes two transmission channels, and the terminal equipment performs transmission on the frequency band set composed of frequency band B and frequency band C.
- the transmission of the carrier on frequency band B occupies one transmission channel
- the transmission of the carrier on frequency band C occupies another transmission channel
- the terminal equipment can be on the frequency band
- the transmission of the carrier on frequency band A occupies two transmission channels, or the terminal equipment's transmission of the carrier on frequency band A occupies one of the transmission channels.
- the terminal equipment is associated when the transmission of the carrier on frequency band A occupies two transmission channels.
- the switching time may be different from the switching time of the terminal equipment occupying one of the transmission channels for carrier transmission on frequency band A. Therefore, the switching time is related to the number of transmission channels occupied by the frequency bands in the frequency band set.
- the switching time is related to the number of transmission channels configured for the frequency bands in the frequency band set, so the switching time obtained by the network device is also more accurate.
- SwticingTmie(switching time element):: CHOICE(choose one from more than one) ⁇
- value1T switching time for 1T switching
- OPTIONAL indicates that the value is optional. If it does not appear, it means that 1T switching is not supported.
- value2T switching time for 2T switching
- ENUMERATED ⁇ n0us, n30us, n100us, n140us, n200us, n300us, n500us, n900us ⁇ (enumeration of possible switching times)
- OPTIONAL indicates that the value is optional. If it does not appear, it means that 2T switching is not supported. ) ⁇ .
- the indication information includes switching time.
- the indication information also indicates the frequency band identifier for transmission channel switching between two frequency band sets in a frequency band set pair. That is to say, the indication information may include switching time and frequency band identification. In this embodiment of the present application, the switching time and the frequency band identifier in the indication information may be associated.
- the indication information of frequency band set pair 1 includes the switching time of frequency band set pair 1.
- the indication information of frequency band set pair 1 also includes the frequency band identifier of frequency band A in the first frequency band set; the frequency band identifier of frequency band B in the second frequency band set and the frequency band of frequency band C. logo.
- the frequency band identifier is unique, thereby accurately distinguishing different frequency bands.
- the frequency band identification of the frequency band may be determined according to the order of the frequency bands in the frequency band combination.
- the frequency band combination is a frequency band combination that supports transmission channel switching.
- the frequency band combination is a frequency band combination reported through the BandCombinationList-UplinkTxSwitch field.
- the frequency band combination includes multiple frequency bands in which the terminal can switch transmission channels. For example, taking Table 7 as an example, if in the frequency band combination, the order of the frequency bands is frequency band A, frequency band B, frequency band C and frequency band D, then the frequency band identifier of frequency band A is 00, and the frequency band identifier of frequency band B is 01. The frequency band identifier of frequency band C is 10, and the frequency band identifier of frequency band D is 11.
- indication information of frequency band set pair 2 and the indication information of frequency band set pair 3 in Table 7 can refer to the description of the indication information of frequency band set pair 1, and will not be described in detail in the embodiment of this application.
- the indication information indicates the frequency band identifier in the first frequency band set and the frequency band identifier in the second frequency band set included in the frequency band set
- the network device when the network device receives the indication information, it can determine the specific frequency band identifier based on the frequency band identifier. Frequency band set pairs, thereby determining the associated frequency band set pairs and switching time. It can be seen that the network device can determine the switching time of N frequency band set pairs through the switching time indicated by the indication information and the frequency band identifier.
- the switching time of the frequency band set pair is determined, which reduces the difficulty for the network device to determine the switching time.
- frequency band identifiers in the indication information may be differentiated according to frequency band sets, or may not be differentiated, which is not limited in the embodiment of the present application.
- the expression of the indication information can be as shown in Table 8:
- the first frequency band set is the frequency band set before switching
- the second frequency band set is the frequency band set after switching.
- one of the frequency band sets of frequency band set pair 1 includes frequency band A and frequency band B
- the other frequency band set includes frequency band C
- frequency band The switching time of set pair 1 is T1.
- one of the frequency band sets of frequency band set pair 1 includes frequency band A and frequency band B
- the other frequency band set includes frequency band D
- the switching time of frequency band set pair 1 is T2.
- frequency band set pair 3 and frequency band set pair 4 may refer to the description of frequency band set pair 1 and frequency band set pair 2, which will not be described again.
- the switching time indicated by the indication information will be more accurate.
- the second frequency band set is the frequency band set before switching
- the first frequency band set is the frequency band set after switching. I won’t go into details here.
- the switching time from the first frequency band set to the second frequency band set and the switching time from the second frequency band set to the first frequency band set may be the same or different. Further, if they are different, the indication information indicates the frequency band set before switching and the frequency band set after switching.
- the indication information indicates the frequency bands included in the frequency band set pair, and there is no need to distinguish the first frequency band set and the second frequency band set.
- the indication information is used to indicate the switching of transmission channels between frequency bands in the frequency band set pair (such as frequency band A, frequency band B and frequency band C).
- Table 9 The indication information can be expressed as shown in Table 9:
- the switching time of the frequency band set pairs involving frequency band A, frequency band B and frequency band C are all T1. It should be understood that the frequency band identifier in the indication information does not distinguish the frequency band set in which the frequency band identifier is located, which can reduce the signaling overhead of the indication information.
- the transmission channel of the terminal device switches between the carrier on frequency band A and the concurrent carriers on ⁇ frequency band B and frequency band C ⁇ .
- the switching time between the carrier on frequency band A and frequency band B ⁇ and the carrier on frequency band C, the switching time between the carrier on concurrent ⁇ frequency band A + frequency band C ⁇ and the carrier on frequency band B is the same, and the same switching time is T1.
- the switching time of the frequency band set pairs involving frequency band A, frequency band B and frequency band D are all T2.
- the switching time of the frequency band set pairs involving frequency band A, frequency band B, frequency band C and frequency band D is all T3.
- the frequency band identifier in the indication information does not distinguish the frequency band set in which the frequency band identifier is located.
- the indication information set reported by the terminal device can also be as shown in Table 10:
- the times in Table 10 may be reported in a preset order.
- There is a preset sequence but the frequency band set pair corresponding to each sequence does not need to distinguish the frequency band set. Only the frequency band of the frequency band set pair needs to be reported, so it is necessary to report "not supported”. Reporting not supported is also to ensure the order. consistent.
- the first row represents the preset sequence of the N frequency band set pairs
- the second row represents the frequency bands of the frequency band set pairs
- the third row represents the indication information set.
- the indication information in the indication information set can indicate
- the switching time can also indicate whether the terminal device supports or does not support switching of transmission channels on the associated frequency band set pair. Among them, "not supported” means that the terminal equipment does not support transmission channel switching between frequency band A and frequency band C, and T1, T2...T10 means the switching time of the transmission channel switching between the frequency bands of the frequency band set pair.
- the terminal device reports the capability information of the terminal device to the network device according to the preset corresponding relationship between the N frequency band set pairs and the indication information in the indication information set.
- the order of the indication information is the same as the preset order of the N frequency band set pairs.
- the frequency band set pair located at the first position includes frequency band A and frequency band B, and the corresponding instruction information indicates that the terminal device supports switching of the transmission channel on the associated frequency band set pair, and the switching time is T1;
- the frequency band set pair located at the first position includes frequency band A and frequency band B.
- a two-digit frequency band set contains frequency The band includes frequency band A and frequency band C, and the corresponding indication information instructs the terminal equipment part to support switching of transmission channels on the associated frequency band set. And so on.
- the terminal device only reports the indication information set in the third row, without reporting the frequency band identifier in the frequency band set pair corresponding to the indication information in the indication information set.
- the network device can determine the indication information set according to the order of the preset frequency band set pairs. Each indication information in is associated with a pair of frequency band sets, thus signaling overhead can be reduced.
- the indication information indicates that M frequency band set pairs among the N frequency band set pairs are associated with the same switching time, and each of the M frequency band set pairs includes the same frequency band, 2 ⁇ M.
- the indication information indicates that the M frequency band set pairs among the N frequency band set pairs are associated with the same switching time, and each of the M frequency band set pairs includes the same frequency band, 2 ⁇ M, Then when the terminal device reports capability information, it can only report one switching time for the same switching time, and does not need to report one switching time for each frequency band set pair. From this, it can be seen that the number of switching times in the capability information is less than N. Therefore, the embodiments of the present application can reduce the signaling overhead between the terminal device and the network device.
- the terminal device reports indication information sets of at least two frequency band set pairs.
- N frequency band set pairs are associated with one frequency band combination, and the frequency band combination includes frequency bands among the N frequency band set pairs supported by the terminal device.
- At least two frequency band set pairs under one frequency band combination can be as shown in Table 11:
- frequency band set pair 1, frequency band set pair 2 and frequency band set pair 3 are associated with a frequency band combination, and the frequency band combination includes frequency band A, frequency band B, frequency band C and frequency band D.
- the sequence number of the frequency band in the frequency band combination can be indicated by 2 bits. For example, 0 represents the first frequency band in the frequency band combination. 1 represents the second uplink frequency band. Assuming that the switching time supports 8 option values (for example: 10us, 20us, 50us, 100us, etc.), 3 bits are required.
- Table 12 can be expressed as follows: Each element in the first row represents the set of frequency bands for the terminal device to perform uplink transmission at the first moment. Each element in the first column represents the set of frequency bands for the terminal device to perform uplink transmission at the second moment. Compared with the first moment, the terminal device switches the uplink transmission channel between the two frequency band sets (or the rows represent the post-switching state, and the columns represent the pre-switching state).
- Filling in an invalid cell means that there is no need to report values in the pairing (for example: the status of the diagonal cell does not change before and after switching, the pairing of the lower triangle and the pairing of the upper triangle are completely repeated, then the corresponding switching time is the same, assuming switching from A to B, the switching time from B to A is the same, so it does not need to be reported).
- the frequency band set pairs that need to be reported can be as shown in Table 13:
- the network device determines the switching time of the frequency band set pair by certain means according to the frequency band identifier indicated by the indication information.
- the following application embodiments describe how the network device determines the switching time of the frequency band set pair according to the frequency band identifier indicated by the indication information.
- a frequency band set pair including two frequency bands will be referred to as a first frequency band set pair
- a frequency band set pair including at least three frequency bands will be referred to as a second frequency band set pair.
- FIG 11 is a schematic flow chart of another communication method provided by an embodiment of the present application.
- the communication method provided by the embodiment of the present application includes steps 1101 to 1103.
- the network device sends a capability query message to the terminal device.
- the terminal device reports the capability information of the terminal device to the network device.
- the indication information set in the capability information includes the first indication information of the first frequency band set pair and the second indication information of the second frequency band set pair.
- the first instruction information instructs the terminal device to perform transmission channel switching between two frequency band sets in the first frequency band set pair. One switching time.
- the second instruction information instructs the terminal to switch the transmission channel between the two frequency band sets of the second frequency band set pair.
- the first frequency band set pair includes two frequency bands. That is to say, the first frequency band set pair involves switching between two frequency bands.
- the second frequency band set pair includes at least three frequency bands, that is, the second frequency band set pair involves switching of at least three frequency bands.
- the network device determines the second switching time of the second frequency band set pair according to the first indication information set and the second indication information set.
- the embodiment of the present application determines by the switching time between the two frequency bands. Switching time for transmission channel switching in at least three frequency bands.
- the first indication information indicates the first switching time of the terminal device in the first frequency band set pair
- the second indication information does not indicate the second switching time of the second frequency band set pair
- the first switching time of the first frequency band set pair is known to the network device, and the network device can know the second frequency band set pair for which the terminal device can perform transmission channel switching through the frequency band identifier indicated by the second indication information. Therefore, the second switching time of the second frequency band set pair is determined through the first switching time indicated by the first indication information.
- the capability information reported by the terminal device to the network device reduces the amount of information on the second switching time.
- the signaling overhead between the terminal device and the network device is reduced, and at the same time, because the network device can determine the second switching time of the second frequency band set pair according to the first switching time indicated by the first indication information , therefore the network device can know the first switching time of the first frequency band set pair and the second switching time of the second frequency band set pair. That is to say, the network device can know the switching time of the frequency band set pair. From this, it can be seen that this The application embodiments not only reduce the signaling overhead between the terminal device and the network device, but also enable the network device to know the switching time of the frequency band set pair.
- the second switching time of the second frequency band set pair is the same as when the terminal device is between any frequency band in one frequency band set and any frequency band in the other frequency band set in the second frequency band set pair. It is related to the time between transmission channel switching.
- the second frequency band set pair includes but is not limited to the following situations: :
- the first frequency band set in the second frequency band set pair includes frequency band A and frequency band B, and the second frequency band set in the second frequency band set pair includes frequency band C and frequency band D.
- the first frequency band set in the second frequency band set pair includes frequency band A and frequency band C
- the second frequency band set in the second frequency band set pair includes frequency band B and frequency band D.
- the first frequency band set in the second frequency band set pair includes frequency band A and frequency band D
- the second frequency band set in the second frequency band set pair includes frequency band B and frequency band C.
- the second frequency band set pair involves the switching scenario of frequency band A, frequency band B, and frequency band C, and the terminal device has two transmission channels
- the second frequency band set pair includes but is not limited to the following situations:
- the first frequency band set in the second frequency band set pair includes frequency band A and frequency band B, and the second frequency band set in the second frequency band set pair includes frequency band C.
- the first frequency band set in the second frequency band set pair includes frequency band A and frequency band C, and the second frequency band set in the second frequency band set pair includes frequency band B.
- the first frequency band set in the second frequency band set pair includes frequency band B and frequency band C, and the second frequency band set in the second frequency band set pair includes frequency band A.
- the switching time related to the second switching time of the second frequency band set pair can be as shown in Table 14:
- the second switching time of the second frequency band set pair in scenario 1 is 20us
- the switching time between frequency band A and frequency band C is 20us
- the switching time between frequency band A and frequency band D is 50us
- the switching time between frequency band B and frequency band is 30us
- the switching time between frequency band B and frequency band D is 35us.
- the switching time related to the second switching time of the second frequency band set pair can be as shown in Table 15:
- the second switching time of the second frequency band set pair in scenario 4 is related to the switching time between frequency band A and frequency band C of 20us and the switching time between frequency band B and frequency band C of 30us.
- the switching time of the frequency band set pair is the time when the terminal device switches the transmission channel between any frequency band in one of the frequency band sets and any frequency band in the other frequency band set. maximum time.
- the switching time of the second frequency band set pair in scenario 1 is 50 us.
- the switching time of the second frequency band combination pair in case four is 30us.
- the network device learns the switching time capability of the terminal device, it can determine that the terminal device will not send uplink signals during the switching time of the transmission channel switching between the two frequency band sets of the frequency band set pair. Instead of not receiving uplink signaling or data due to poor channel conditions or other reasons; the network equipment will not allocate uplink resources or schedule uplink transmission during the switching time, which can avoid the waste of wireless resources.
- the network equipment Because during this switching period, the network equipment will think that the terminal equipment does not have the ability to send uplink signaling or data, and will not schedule uplink transmission. Therefore, the significance of taking the maximum value is that if the switching time considered by the network device is less than the actual transmission channel switching time of the terminal device, it may cause the network device to allocate uplink resources and schedule uplink transmission during the time when the terminal device cannot send uplink. Leading to a waste of wireless resources; when the network device does not receive the uplink data sent by the terminal device on the scheduled uplink resources, it will mistakenly believe that the channel conditions are poor, and thus adjust to a more conservative scheduling strategy (such as a lower order MCS (modulation and coding scheme)), resulting in a reduction in the uplink data rate. Therefore, the uplink data rate can be further increased by using the maximum time as the switching time of the band set pair.
- MCS modulation and coding scheme
- the embodiment of the present application that determines the switching time of three frequency bands based on two frequency bands can be used in combination with other embodiments. That is, the terminal device can report the indication information according to the preset order (without reporting the frequency band identifier), or it can report the frequency band identifier of the frequency band set pair. .
- the explanation is explained by using indication information to indicate whether the terminal device supports or does not support switching of transmission channels between two frequency band sets in a frequency band set pair.
- the indication information includes a support identifier of the frequency band set pair and an unsupported identifier of the frequency band set pair.
- the indication information indicates that the terminal device supports or does not support transmission channel switching between two frequency band sets in the frequency band set pair, and the network device can learn the frequency band set pairs supported by the terminal device and the frequency band set pairs that are not supported. Frequency band set pair, based on this, the network device can control the terminal device to switch on the supported frequency band set pair.
- the terminal device reports the capability information of the terminal device to the network device according to the preset corresponding relationship between the N frequency band set pairs and the indication information in the indication information set
- the purpose of reporting support and non-support for the N frequency band set pairs here is mainly to ensure that the one-to-one correspondence between the N frequency band set pairs and the N indication information in the indication information set is not disrupted.
- the support identifier and unsupported identifier can be reported together with the frequency band identifier and switching time, or separately. That is to say, only the support identifier and the unsupported identifier can be reported without reporting the frequency band identifier and switching time.
- the indication information only indicates frequency band set pairs supported by the terminal device or unsupported frequency band set pairs.
- the indication information only indicates the frequency band set pairs supported by the terminal device or the frequency band set pairs that are not supported. That is to say, the indication information does not indicate whether the frequency band set pairs are supported or not supported. Therefore, it can Reduce the signaling overhead of terminal equipment reporting capability information.
- the indication information indicates whether the frequency band set pairs supported by the terminal device or the frequency band set pairs not supported by the terminal device are related to the number of frequency band set pairs supported by the terminal device and the number of frequency band set pairs not supported by the terminal device. Quantity related.
- the indication information indicates the frequency band set pairs not supported by the terminal device.
- the indication information indicates the frequency band set pairs supported by the terminal device.
- the indication information indicates the number of frequency band set pairs supported by the terminal equipment or the indication information indicates Frequency band set not supported by the terminal device
- the number of combined pairs is less than N/2 respectively, thereby reducing the signaling overhead of the terminal device reporting capability information.
- the specific content of the instruction information reported by the terminal device is taken as an example, and the description is given in conjunction with how the network device determines the switching method for each frequency band set pair.
- the following application embodiments are based on any of the above application embodiments, taking the way in which a terminal device reports indication information as an example, and describing how the network device determines the switching method for each frequency band set pair.
- FIG 12 is a schematic flow chart of another communication method provided by an embodiment of the present application.
- the communication method provided by the embodiment of the present application includes steps 1001 to 1003.
- the network device sends a capability query message to the terminal device.
- the terminal device reports the capability information of the terminal device to the network device according to the corresponding relationship between the preset N frequency band set pairs and the indication information in the indication information set.
- the capability information includes the indication information set.
- the corresponding relationship is related to the order of the preset N frequency band set pairs.
- the order of the indication information in the indication information set is the same as the order of the preset N frequency band set pairs.
- the element in the i-th row and j-th column in the first preset table is Eij
- each element Eij among the N elements is arranged in increasing order of columns and rows.
- the frequency band set pair including the i-th frequency band set and the j-th frequency band set has a corresponding relationship with the element Eij in the table, where j is greater than i, 1 ⁇ i ⁇ K, j ⁇ K, K, i and j are both positive integers, and K is the number of frequency band sets associated with the frequency band combination.
- the K frequency band sets are composed of any Q frequency bands among the P frequency bands in the frequency band combination.
- the K frequency band sets are arranged in a preset order in the first preset table, and Q is Positive integer.
- Q is less than or equal to the number of transmission channels, and Q is less than or equal to P.
- the first preset table may be as shown in Table 16:
- the indication information set may include 45 pieces of indication information.
- one of the frequency band set pairs corresponding to the 25th indication information includes frequency band A and frequency band B.
- the 25th indication information corresponds to The other frequency band set of the pair of frequency band sets includes frequency band D.
- one of the frequency band sets corresponding to the 36th indication information includes frequency band A and frequency band C, and the other frequency band set of the frequency band set pair corresponding to the 36th indication information includes frequency band A and frequency band D.
- the frequency band set pair corresponding to any indication information in the indication information set can be determined through the first preset table, and will not be described in detail in the embodiment of this application.
- the terminal device can report capability information according to the first preset table, so that each indication information in the indication information set corresponds to an element in the first preset table.
- the first preset table may be as shown in Table 17:
- the indication information set can include 39 pieces of indication information.
- one of the frequency band set pairs corresponding to the 25th indication information includes frequency band A and frequency band B.
- the 25th indication information corresponds to
- the other frequency band set of the pair of frequency band sets includes frequency band A and frequency band C.
- one of the frequency band sets corresponding to the 36th indication information includes frequency band A and frequency band D, and the other frequency band set of the frequency band set pair corresponding to the 36th indication information includes frequency band C and frequency band. D.
- the network device determines the switching time of each frequency band set pair according to the corresponding relationship between the preset N frequency band set pairs and the indication information in the indication information set.
- the network device Since the capability information is reported by the terminal device based on the corresponding relationship between the frequency band set pair and the indication information, if the network device knows the corresponding relationship, it can also know the frequency band set pair corresponding to each indication information in the indication information set, and then determine the frequency band The switching time of the set pair.
- the network device can determine the frequency band set pair corresponding to each indication information in the indication information set according to the corresponding relationship, that is to say , even if the indication information does not indicate the frequency band identifier, the network device can determine the frequency band set pair corresponding to the indication information, and there is no need to indicate the frequency band identifier, which reduces the amount of data required for the indication information to indicate the frequency band identifier. It can be seen from this that the reduction The signaling overhead between terminal equipment and network equipment.
- the corresponding relationship is related to the order of the preset N frequency band set pairs.
- the order of the indication information in the indication information set is the same as the order of the preset N frequency band set pairs.
- the element in the i-th row and j-th column in the second preset table is Eij, and each element Eij among the N elements is arranged in increasing order of columns and rows.
- the frequency band set pair including the i-th frequency band set and the j-th frequency band set has a corresponding relationship with the element Eij in the table, where j is greater than i, 1 ⁇ i ⁇ K, j ⁇ K, K, i and j are both positive integers, and K is the number of frequency band sets associated with the frequency band combination.
- the second preset table may be the same as the first preset table, and the network device and the terminal device may determine the frequency band set pair corresponding to each indication information in the indication information set based on the same preset table.
- the second preset table may be as shown in Table 16; if each frequency band set pair includes at least three frequency bands, the second preset table may be as shown in Table 17 shown.
- the function of the indication information includes but is not limited to at least one of indicating switching time and indicating that the terminal device supports or does not support switching of transmission channels between two frequency band sets in a frequency band set pair.
- the following application embodiments respectively describe the instruction information.
- the instruction information indicating the switching time is used as an example for explanation.
- the number of elements is the number of first frequency band sets containing 1 frequency band (P), the number of first frequency band sets containing 2 frequency bands (P*(P-1)/2),... ...The sum of the number of the first frequency band set containing P-1 frequency bands.
- the network device When the network device receives the instruction information set, it can determine the elements corresponding to each switching time through the second preset table, thereby determining the frequency band set pair corresponding to each switching time.
- the indication information may also indicate that the terminal device supports or does not support switching of the transmission channel between the two frequency band sets of the frequency band set pair. Specifically, how to express whether the terminal device supports or does not support switching of transmission channels between the two frequency band sets of the frequency band set pair can be referred to the description of the above embodiments, which will not be described again here.
- the second position identified in the indication information set is not supported.
- one of the frequency band sets corresponding to the second position includes frequency band A
- the second position corresponds to The other frequency band set in the pair of frequency band sets includes frequency band C. That is to say, the terminal device does not support switching of transmission channels between frequency band A and frequency band C.
- the second position identified in the indication information set is not supported.
- one of the frequency band sets corresponding to the second position includes frequency band A, and the second position corresponds to frequency band A.
- the other frequency band set in the frequency band set pair includes frequency band A and frequency band C. That is to say, the terminal device does not support switching of transmission channels between frequency band A and frequency band A+frequency band C.
- the indication information is used to indicate whether the terminal device supports or does not support switching of transmission channels between two frequency band sets in the frequency band set pair.
- the 10th indication information is 1, indicating that the terminal device supports it.
- one of the frequency band sets corresponding to the 10th indication information includes frequency band B
- the 10th indication information corresponds to One of the frequency band sets of the frequency band set pair includes frequency band C. That is to say, the terminal device supports switching of transmission channels between frequency band A and frequency band B.
- the 39th indication information is 0, indicating that the terminal device does not support it.
- one of the frequency band sets corresponding to the 39th indication information includes frequency band A and frequency band C.
- the 39th indication information One of the corresponding frequency band set pairs includes frequency band C and frequency band D. That is to say, the terminal device does not support switching of the transmission channel between frequency band A+C and frequency band C+D.
- the sixth indication information is 1, indicating that the terminal device supports it. It can be seen from Table 17 that one of the frequency band sets in the pair of frequency band sets corresponding to the sixth indication information includes frequency band A, and the other frequency band set in the pair of frequency band sets corresponding to the sixth indication information includes frequency band C and frequency band D, also That is to say, the terminal equipment supports switching of transmission channels between frequency band A and frequency band C+D.
- the terminal device can report the indication information set to the network device according to the first preset table in combination with the situation that the terminal device supports or does not support the frequency band set pair. Then the network device can combine the second preset table with the indication information set according to the Assume that the table determines the frequency band set pair supported by the terminal device, thereby determining the switching time of the frequency band set pair supported by the terminal device.
- the affected downlink frequency band number can also be reported as above when reporting the switching time. For example, for a scene frequency band A+B When switching to frequency band C, the reported switching time is 20us. It can also indicate that this switching will affect the transmission of downlink frequency band B and frequency band C.
- the purpose of the terminal reporting the downlink frequency band of downlink transmission affected by uplink transmission channel switching to the network device is to let the network device know that the terminal device cannot receive downlink signaling and data during the switching time. Therefore, the network The device does not send downlink signaling and data during the switching time to avoid packet loss.
- the base station and the terminal equipment include corresponding hardware structures and/or software modules for performing each function.
- the base station and the terminal equipment include corresponding hardware structures and/or software modules for performing each function.
- Those skilled in the art should easily realize that, in conjunction with the units and method steps of each example described in the application embodiments disclosed in this application, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software driving the hardware depends on the specific application scenarios and design constraints of the technical solution.
- Figures 13 and 14 are schematic structural diagrams of possible communication devices provided by the application embodiments of this application. These communication devices can be used to implement the functions of the terminal equipment or base station in the above method application embodiments, and therefore can also achieve the beneficial effects of the above method application embodiments.
- the communication device may be one of the terminal devices 120a-120j as shown in Figure 1, or it may be the base station 110a or 110b as shown in Figure 1, or it may be applied to the terminal device or Base station modules (such as chips).
- the communication device 1300 includes a processing unit 1310 and a transceiver unit 1320.
- the communication device 1300 is used to implement the functions of the terminal device or network device in the method application embodiment shown in FIG. 4, FIG. 11 or FIG. 12.
- the transceiver unit 1320 is used to receive a capability query message from the network device, and report the capability information of the terminal device to the network device.
- the transceiver unit 1320 is used to send a capability query message and receive capability information reported by the terminal device;
- the processing unit 1310 is used to collect according to the instruction information
- the indication information determines the switching time of each frequency band set pair, and the switching time indicates the time for the terminal device to switch the transmission channel between the two frequency band sets in the frequency band set pair.
- the transceiver unit 1320 is used to receive the capability query message from the network device, and report the capability information of the terminal device to the network device.
- the capability information The indication information set in includes first indication information of the first frequency band set pair and second indication information of the second frequency band set pair.
- the transceiver unit 1320 is used to send a capability query message and receive capability information reported by the terminal device;
- the processing unit 1310 is used to respond to the first instruction.
- the information set and the second indication information set determine the second switching time of the second frequency band set pair.
- the transceiver unit 1320 is used to receive the capability query message from the network device, and pair and indicate the information according to the preset N frequency band sets The corresponding relationship of the indication information in the set is used to report the capability information of the terminal device to the network device.
- the transceiver unit 1320 is used to send a capability query message and receive capability information reported by the terminal device;
- the processing unit 1310 is used to perform the function according to the preset The corresponding relationship between the N frequency band set pairs and the indication information in the indication information set determines the switching time of each frequency band set pair.
- processing unit 1310 and the transceiver unit 1320 please refer to the relevant descriptions in the method application embodiments shown in FIG. 4, FIG. 11, or FIG. 12.
- the communication device 1400 includes a processor 1410 and an interface circuit 1420 .
- the processor 1410 and the interface circuit 1420 are coupled to each other.
- the interface circuit 1420 may be a transceiver or an input-output interface.
- the communication device 1400 may also include a memory 1430 for storing instructions executed by the processor 1410 or input data required for the processor 1410 to run the instructions or data generated after the processor 1410 executes the instructions.
- the processor 1410 is used to implement the functions of the above-mentioned processing unit 1310
- the interface circuit 1420 is used to implement the functions of the above-mentioned transceiver unit 1320.
- the terminal device chip When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method application embodiment.
- the terminal device chip receives information from other modules (such as radio frequency modules or antennas) in the terminal device, and the information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules (such as radio frequency modules or antennas) in the terminal device Information, information is sent by the terminal device to the network device.
- the network equipment module implements the functions of the network equipment in the above method application embodiment.
- the network device module receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is sent by the terminal device to the network device; or, the network device module sends information to other modules in the network device (such as radio frequency modules or antennas) Information, information is sent by network equipment to terminal equipment.
- the network equipment module here can be the baseband chip of the network equipment, or it can be a DU or other module.
- the DU here can be a DU under the open radio access network (O-RAN) architecture.
- OF-RAN open radio access network
- processor in the application embodiment of this application can be a central processing unit (Central Processing Unit, CPU), or other general-purpose processor, digital signal processor (Digital Signal Processor, DSP), special integrated Circuit (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
- CPU Central Processing Unit
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- a general-purpose processor can be a microprocessor or any conventional processor.
- the device may be as shown in Figure 15.
- the device may include one or more radio frequency units, such as a remote radio unit (RRU) 1510 and one or more baseband units (BBU) (also called a digital unit, DU) 1520.
- RRU 1510 may be called a transceiver module, which may include a sending module and a receiving module, or the transceiving module may be a module that can implement sending and receiving functions.
- the transceiver module may correspond to the transceiver module 1320 in FIG. 13, that is, the transceiver module may perform the actions performed by the transceiver module 1320.
- the transceiver module may also be called a transceiver, a transceiver circuit, a transceiver, etc., and may include at least one antenna 1511 and a radio frequency unit 1512.
- the RRU 1510 part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals.
- the BBU 2410 part is mainly used for baseband processing, base station control, etc.
- the RRU 1510 and the BBU 1520 can be physically set together or physically separated, that is, a distributed base station.
- the BBU 1520 is the control center of the base station and can also be called a processing module. It can correspond to the processing module 1310 in Figure 13 and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, etc. In addition , the actions performed by the processing module 1310 may be performed by the processing module.
- the BBU processing module
- the BBU can be used to control the base station to execute the operation process related to the network device in the above method embodiment.
- the BBU 1520 can be composed of one or more single boards. Multiple single boards can jointly support a wireless access network of a single access standard (such as an LTE network), or can respectively support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks).
- the BBU 1520 also includes a memory 1521 and a processor 1522.
- the memory 1521 is used to store necessary instructions and data.
- the processor 1522 is used to control the base station to perform necessary actions, for example, to control the base station to perform the operation process of the network equipment in the above method embodiment.
- the memory 1521 and processor 1522 may serve one or more single boards. In other words, the memory and processor can be set independently on each board. It is also possible for multiple boards to share the same memory and processor. In addition, necessary circuits can also be installed on each board.
- the method steps in the application embodiments of this application can be implemented in hardware or in software instructions that can be executed by a processor.
- Software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory In memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art.
- An exemplary storage medium is coupled to the processor such that the processor can read information from the storage medium and write information to the storage medium.
- the storage medium may also be an integral part of the processor. deal with The processor and storage media can be located in the ASIC. Additionally, ASICs can be located in network equipment or end devices.
- the processor and storage medium may also exist as discrete components in network equipment or end devices.
- a computer program product includes one or more computer programs or instructions.
- the computer may be a general purpose computer, a special purpose computer, a computer network, a network device, a user equipment, or other programmable device.
- a computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., a computer program or instructions may be transferred from a website, computer, server, or data center Transmission by wired or wireless means to another website site, computer, server or data center.
- Computer-readable storage media can be any available media that can be accessed by a computer, or data storage devices such as servers and data centers that integrate one or more available media. Available media can be magnetic media, such as floppy disks, hard disks, and magnetic tapes; they can also be optical media, such as digital video optical disks; or they can be semiconductor media, such as solid-state drives.
- Computer-readable storage media may be volatile or nonvolatile storage media, or may include both volatile and nonvolatile types of storage media.
- At least one refers to one or more, and “multiple” refers to two or at least two.
- “And/or” describes the relationship between associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
- the character “/” generally indicates that the related objects before and after are an “or” relationship; in the formula of this application, the character “/” indicates that the related objects before and after are a kind of “division” Relationship.
- “Including at least one of A, B and C” may mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.
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Abstract
本申请提供了一种通信方法以及装置,包括:终端设备上报能力信息,所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数。采用上述方式能够提升终端设备的数据传输速率和频谱利用效率。
Description
本申请要求于2022年08月09日提交中国专利局、申请号为CN202210952557.X、申请名称为“一种通信方法以及装置”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。
本申请涉及无线通信领域,尤其涉及一种通信方法以及装置。
上行发射机切换(UL Tx switching)是5G演进版本中引入的新特性。特性通过终端设备在载波之间切换发射机,在上行链路以时分复用方式使用FDD载波和TDD载波,从而在时频域充分聚合FDD上行多时隙和TDD上行大带宽的优势,最大化利用上行资源,提升网络容量,提高上行速率。
UL Tx switching的关键词便是切换(switching)。通过终端设备发射机在两个载波间不断动态切换,相当于在TDD载波旁边开了一条FDD载波车道,在TDD载波的下行时间,由FDD载波承担上行,而在TDD的上行时间,便同时工作,确保上行实时高速在线。
目前的相关技术中,UL Tx switching只支持在两个频段之间的切换,终端设备也只能上报在两个频段之间切换发射机的能力,更多频段之间的切换是没有考虑的,从而导致上行的传输速率受限。
发明内容
本申请实施例提供了一种通信方法以及装置,提升终端设备的数据传输速率和频谱利用效率。
第一方面,本申请实施例提供了一种通信方法,该方法的执行主体可以是终端设备,也可以是应用于终端设备中的芯片。下面以执行主体是终端设备为例进行描述。方法包括:
终端设备接收来自网络设备的能力查询消息,则终端设备向网络设备上报终端设备的能力信息,能力信息包括N个频段集合对的指示信息集合。其中,N为正整数,也就是说,终端设备可能上报一个频段集合对的指示信息集合,也可能上报多个频段集合对的指示信息集合。在指示信息集合中的每个指示信息与至少一个频段集合对关联。对于指示信息关联的频段集合对,指示信息指示终端设备在关联的频段集合对中的两个频段集合之间进行传输通道的切换。频段集合对中的每个频段集合包括频段集合对中的L个频段(band)中的至少一个频段,L为大于或等于2的整数。可选的,L为大于或等于3的整数。
在本申请中,传输通道可以指射频通道、发射通道(Tx branch)或接收通道(Rx branch)。其中,发射通道可以为上行发射机或上行发射链路。其中,接收通道可以为下行接收机或下行发射链路。
在本申请实施例中,若L等于2,则至少一个频段集合对中的每个频段集合包括一个频段。若L为大于或等于3的整数,则至少一个频段集合对中的至少一个频段集合是包括至少两个频段的,也就是说,N个频段集合对中的第一频段集合包括至少两个频段,和/或频段集合对中的第二频段集合包括至少两个频段,并且由于一个频段集合对中的两个频段集合不完全一致,因此,若L为大于或等于3的整数时,频段集合对是涉及到至少三个频段的切换场景的。在一些情形中,终端设备在涉及至少三个频段进行传输通道切换时,终端设备可以根据数据流量需求、频段的网络配置、频段的带宽、以及频段的信道条件等,灵活确定如何在三个及以上频段之间进行传输通道的切换,一般的,终端设备在涉及至少三个频段进行传输通道切换的数据传输效率和频谱利用效率是高于终端设备在涉及两频段进行传输通道切换的数据传输效率和频谱利用效率。
因此,本申请实施例的方案,可以支持终端设备涉及在至少三个频段的切换,使得终端进行频段切换的适用场景更加丰富,从而提升终端设备的数据传输速率和频谱利用效率。
在一种可能的实现中,2≤N,也就是说,终端设备上报的是至少两个频段集合对的指示信息集合。N个频段集合对与一个频段组合(band combination,BC)相关联,频段组合包括终端设备支持的N个频段集合对中的频段,也就是说,任何一个频段集合对中的频段,都属于频段组合。N个频段集合对与一个频段组合相关联,也可以理解为,终端设备针对所述的一个频段组合上报关联的N个频段集合对的指示信息集合。所述频段组合为支持传输通道切换的频段组合。一种可能的实现方式为,所述频段组合是通过BandCombinationList-UplinkTxSwitch字段上报的频段组合。当所述传输通道为发射通道时,
所述频段集合对中的L个频段可以为所述频段组合包含的上行频段;当所述传输通道为接收通道时,所述频段集合对中的L个频段可以为所述频段组合包含的下行频段。一种可能的实现中,所述N个频段集合对中的频段为关联的频段组合中的全部频段;另一种可能的实现中,所述N个频段对中的频段为关联的频段组合中的频段的子集。
在本申请实施例中,终端设备向网络设备上报终端设备的能力信息,包括:
根据预设的N个频段集合对与所述指示信息集合中的指示信息的对应关系,向网络设备上报终端设备的能力信息。
在本申请实施例中,由于指示信息集合中的指示信息与频段集合对具有对应关系,则网络设备可以根据对应关系,确定指示信息集合中的各指示信息所对应的频段集合对,也就是说,即使指示信息未指示所述频段集合对包含两个频段集合的频段标识,也能使得网络设备确定指示信息所对应的频段集合对,使网络设备确定指示信息所对应的频段集合对是在包含哪些频段的两个频段集合之间进行的传输通道的切换。不需要指示频段标识也就减少了指示信息指示频段标识所需要的数据量,由此可知,降低了终端设备向网络设备上报能力信息的信令开销。其中,对应关系可以是信息集合中的指示信息的顺序与N个频段集合对的预设顺序有关。
在一种可能的实现中,指示信息集合中的指示信息的顺序与预设的N个频段集合对的顺序相同。可以理解为,指示信息集合中包含N个指示信息,所述N个指示信息与所述N个频段集合对是一一对应的。所述N个频段集合对具有预设的顺序,因此所述N个指示信息中的每个指示信息可以唯一对应到一个频段集合对。比如,指示信息集合中的处于第一位次的指示信息对应于第一频段集合对,处于第二位次的指示信息对应于第二频段集合对,以此类推。
在一种可能的实现中,所述预设的N个频段集合对的顺序与第一预设表中N个元素的排列顺序存在对应关系。
在一种可能的实现中,所述第一预设表中N个元素排列顺序包括:
所述N个元素Eij中的每个元素Eij按列和行的递增顺序依次排列,元素Eij为所述第一预设表中第i行第j列的元素,所述N个频段集合对中的每个频段集合对的频段集合与所述第一预设表中的元素Eij存在对应关系,其中,j大于i,1≤i≤K,j≤K,i≤K,K、i、j均为正整数,K是所述频段组合关联的频段集合的数目。
一个频段组合的P个频段中的任意Q个频段组成的频段集合有K个,Q可以小于等于终端设备支持的传输通道的数目,也可以是Q小于等于P。举例来说,终端设备支持的发射通道数目为2,一个频段组合中包含3个上行频段,分别为bandA,bandB,bandC。任意1个上行频段组成的频段集合有3个,{bandA},{bandB},{bandC};任意两个上行频段组成的频段集合有3个,{bandA,bandB},{bandB,bandC},{bandA,bandC};则共有K=6个频段集合,将这6个频段集合按照预设顺序排列({bandA},{bandB},{bandC}、{bandA,bandB},{bandB,bandC},{bandA,bandC}),则6个频段集合可以组成N=15个频段集合对。
在一种可能的实现中,指示信息指示切换时间。所述切换时间内终端设备无法在所述传输通道上进行传输。举例说明,当所述传输通道为发射通道时,传输通道的切换时间内终端设备无法发送上行。网络设备在获知终端设备的切换时间能力后,就可以确定在所述频段集合对的两个频段集合之间进行发射通道切换的切换时间内终端设备不会发送上行信令或数据,而不是因为信道条件较差等原因未接收到上行信令或数据;网络设备在切换时间内也不会分配上行资源、调度上行传输,可以避免无线资源的浪费。
在本申请实施例中,若指示信息包括切换时间,则网络设备在接收到指示信息集合时,网络设备若已知指示信息所对应的频段集合对,即可确定每个频段集合对中的两个频段集合之间进行传输通道切换的切换时间。
在一种可能的实现中,切换时间与频段集合中的频段配置的传输通道的数量有关。
示例性的,对于终端设备在频段集合{bandA}与频段集合{bandB+频段C}之间的切换时间来说,假设终端设备具有两个传输通道,终端设备在{频段B+频段C}上进行传输时,其中一条传输通道用于频段B的传输,而其中另一条传输通道用于频段C的传输;终端设备在频段A上进行传输时,则可以是终端设
备的两个传输通道均用于频段A的传输,也可以是终端设备的一个传输通道用于频段A的传输。在此情况下,终端设备使用一个传输通道用于频段A的传输,切换到两个传输通道用于{频段B+频段C}的传输的切换时间,和终端设备使用两个传输通道用于频段A的传输,切换到使用两个传输通道用于{频段B+频段C}的传输的切换时间可能是不一样的。因此,切换时间需要区分频段集合中的频段配置的传输通道的数量。终端设备可以对不同传输通道的数量上报不同的切换时间的能力,网络设备在对频段上的载波的传输配置不同时,就可以根据终端设备上报的能力确定在多长的切换时间上暂停调度上行。
在一种可能的实现中,指示信息指示两个频段集合之间进行传输通道切换的频段标识。
其中,频段标识作为频段的一种身份标识,可以通过频段标识识别出具体的频段,因此,通过频段标识能够指示所述进行传输通道切换的两个频段集合中的每个频段集合包含的频段。可选的,终端设备可以上报终端设备所支持切换的频段集合对的频段标识。
在一种可能的实现中,指示信息指示终端设备支持或不支持在频段集合对中两个频段集合之间进行传输通道的切换。
在本申请实施例中,由于一些因素的影响,例如终端设备的硬件能力等因素的影响,终端设备不一定能够在所述的N个频段集合对的两个频段集合之间进行传输通道的切换,终端设备支持进行传输通道切换的频段集合对是所述N个频段集合对的子集。因此,本申请实施例通过指示信息指示终端设备支持或不支持N个频段集合对中两个频段集合之间进行传输通道的切换,则网络设备可以得知终端设备支持的频段集合对以及不支持的频段集合对,基于此,网络设备可以配置终端设备在支持的频段集合对的两个频段集合之间进行传输通道的切换。
需要说明的是,如果终端设备是根据预设的所述N个频段集合对与所述指示信息集合中所述指示信息的对应关系,向所述网络设备上报所述终端设备的能力信息的话,则这里对N个频段集合对要上报支持和不支持的目的主要是为了保证N个频段集合对和指示信息集合中的N个指示信息的一一对应关系不被打乱。
在一种可能的实现中,指示信息指示N个频段集合对中的M个频段集合对关联的切换时间相同,M个频段集合对中的每个频段集合对包括的频段相同,2≤M。
在本申请实施例中,通过指示信息指示N个频段集合对中的M个频段集合对关联的切换时间相同,M个频段集合对中的每个频段集合对包括的频段相同,2≤M,则终端设备在上报能力信息时,对于相同的切换时间可以只上报一个,而不需要针对每个频段集合对均对应上报一个切换时间,由此可知,能力信息中的切换时间的数量小于N,因此本申请实施例可以减少终端设备与网络设备之间的信令开销。
在一种可能的实现中,为了满足特定需求,终端设备上报满足预设条件的频段集合对。可选的,预设条件可以是频段集合对中的两个频段集合之间至少有一个频段相同。
在本申请实施例中,终端设备可以上报满足约束条件的频段集合对,从而适应不同的上报场景。
第二方面,本申请实施例提供了一种通信方法,该方法的执行主体可以是网络设备也可以是应用于网络设备中的芯片。有益效果可以参见第一方面的描述此处不再赘述。下面以执行主体是网络设备为例进行描述。包括:网络设备向终端设备发送能力查询消息,接收终端设备上报的能力信息。所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数,N为正整数。在网络设备接收到能力信息后,可以根据指示信息集合中指示信息确定每个频段集合对的切换时间,切换时间指示终端设备在频段集合对中的两个频段集合之间进行传输通道切换的时间。
因此,本申请实施例的方案,可以支持终端设备涉及在至少三个频段的切换,使得终端进行频段切换的适用场景更加丰富,从而提升终端设备的数据传输速率和频谱利用效率。
在一种可能的实现中,根据指示信息集合中的指示信息确定每个频段集合对的切换时间,包括:根据预设的N个频段集合对与指示信息集合中的指示信息的对应关系确定每个频段集合对的切换时间。
在一种可能的实现中,指示信息集合中的指示信息的顺序与预设的N个频段集合对的顺序相同。
在一种可能的实现中,所述预设的N个频段集合对的顺序与第二预设表中N个元素的排列顺序存在
对应关系。其中,第二预设表可以与第一预设表相同,则网络设备和终端设备可以基于相同的预设表,来确定指示信息集合中的各指示信息所对应的频段集合对。
在一种可能的实现中,所述第二预设表中N个元素排列顺序包括:
所述N个元素中的每个元素Eij按列和行的递增顺序依次排列,元素Eij为所述第一预设表中第i行第j列的元素,所述N个频段集合对中的每个频段集合对的频段集合与所述第一预设表中的元素Eij存在对应关系,其中,j大于i,1≤i≤K,j≤K,K、i、j均为正整数,K是所述频段组合关联的频段集合的数目。
在一种可能的实现中,K个频段集合由所述频段组合中的P个频段中的任意Q个频段组成的,所述K个频段集合在所述第一预设表中按照预设顺序排列,Q为正整数。
在一种可能的实现中,切换时间与频段集合中的频段配置的传输通道的数量有关。
在一种可能的实现中,指示信息指示两个频段集合之间进行传输通道切换的频段标识。
在一种可能的实现中,指示信息指示终端设备支持或不支持在频段集合对的两个频段集合之间进行传输通道的切换。
在一种可能的实现中,指示信息指示N个频段集合对中的M个频段集合对关联的切换时间相同,M个频段集合对中的每个频段集合对包括的频段相同,2≤M。
在一种可能的实现中,频段集合对的切换时间与终端设备在频段集合对中的其中一个频段集合中的任一个频段与其中另一个频段集合中的任一个频段之间进行传输通道切换的时间有关。
在一种可能的实现中,频段集合对的切换时间为终端设备在频段集合对中的其中一个频段集合中的任一个频段与其中另一个频段集合中的任一个频段之间进行传输通道切换的最大时间。
在本申请实施例中,由于在这段切换时间内网络设备会认为终端设备不具备发送上行信令或数据的能力,也不会调度上行传输。因此取最大值的意义在于,如果网络设备认为的切换时间小于终端设备实际进行传输通道切换的时间,那么可能导致网络设备在终端设备无法发送上行的时间内分配了上行资源,调度了上行传输,导致无线资源的浪费;当网络设备未在所述调度的上行资源上接收到终端设备发送的上行数据,则会误认为信道条件较差,从而调整为更为保守的调度策略(比如更低阶的MCS(调制编码方式,modulation and coding scheme)),导致上行数据速率降低。因此,通过将最大时间作为频段集合对的切换时间,可以进一步提高上行数据速率。
第三方面,提供一种通信装置,有益效果可以参见第一方面的描述此处不再赘述。所述通信装置具有实现上述第一方面的方法实例中行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中,所述通信装置包括:收发模块,用于接收来自网络设备的能力查询消息;所述处理模块,用于向所述网络设备上报终端设备的能力信息,所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数,N为正整数。这些模块可以执行上述第一方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第四方面,提供一种通信装置,有益效果可以参见第二方面的描述此处不再赘述。所述通信装置具有实现上述第二方面的方法实例中行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中,所述通信装置包括:收发模块,用于发送能力查询消息,以及接收终端设备上报的能力信息,所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数,N为正整数;处理模块,用于根据所述指示信息集合中所述指示信息确定每个频段集合对的切换时间,所述切换时间指示所述终端设备在所述频段集合对中的所述两个频段集合之间进行传输通道切换的时间。这些模块可以执行上述第二方面方法示例中的相应功能,具体参见方法示例中的详细描述,此处不做赘述。
第五方面,本申请实施例提供了一种通信装置,包括处理器和接口电路,接口电路用于接收来自其它通信装置的信号并传输至处理器或将来自处理器的信号发送给其它通信装置,处理器通过逻辑电路或执行代码指令用于实现如第一方面的方法。
第六方面,本申请实施例提供了一种通信装置,包括处理器和接口电路,接口电路用于接收来自其它通信装置的信号并传输至处理器或将来自处理器的信号发送给其它通信装置,处理器通过逻辑电路或执行代码指令用于实现如第一方面的方法。
第七方面,本申请实施例提供了一种计算机可读存储介质,包括计算机程序指令,当计算机程序指令由处理器执行时,处理器执行如第一方面或第二方面的方法的步骤。
第八方面,本申请实施例提供了一种计算机程序产品,计算机程序产品包括软件代码,软件代码用于执行如第一方面或第二方面的方法的步骤。
第九方面,本申请提供了一种芯片系统,该芯片系统包括处理器,用于实现上述各方面的方法中终端设备的功能。在一种可能的设计中,所述芯片系统还包括存储器,用于保存程序指令和/或数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十方面,本申请提供了一种芯片系统,该芯片系统包括处理器,用于实现上述各方面的方法中网络设备的功能。在一种可能的设计中,所述芯片系统还包括存储器,用于保存程序指令和/或数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十一方面,本申请提供了一种通信方法,包括:网络设备发送通信查询信息。终端设备接收能务查询信息。终端设备向所述网络设备上报终端设备的能力信息,所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数,N为正整数。网络设备接收终端设备上报的能力信息,根据所述指示信息集合中所述指示信息确定每个频段集合对的切换时间,所述切换时间指示所述终端设备在所述频段集合对中的所述两个频段集合之间进行传输通道切换的时间。
第十二方面,本申请提供了一种通信系统,包括用于执行第一方面方法的终端设备与用于执行第二方面的网络设备。
图1是本申请的申请实施例应用的通信系统的架构示意图;
图2是本申请实施例提供的一种频段组合的示意图;
图3是本申请实施例提供的一种UE能力的结构示意图;
图4为本申请实施例提供的一种通信方法的流程示意图;
图5为本申请实施例提供的一种switch所涉及的频段的示意图;
图6为本申请实施例提供的另一种switch所涉及的频段的示意图;
图7为本申请实施例提供的另一种switch所涉及的频段的示意图;
图8为本申请实施例提供的另一种switch所涉及的频段的示意图;
图9为本申请实施例提供的另一种switch所涉及的频段的示意图;
图10为本申请实施例提供的另一种switch所涉及的频段的示意图;
图11为本申请实施例提供的另一种通信方法的流程示意图;
图12为本申请实施例提供的另一种通信方法的流程示意图;
图13为本申请的申请实施例提供的一种通信装置的结构示意图;
图14为本申请的申请实施例提供的另一种通信装置的结构示意图;
图15为本申请实施例提供的一种网络设备的结构示意图。
下面结合本发明申请实施例中的附图对本发明申请实施例进行描述。本发明的实施方式部分使用的术语仅用于对本发明的具体申请实施例进行解释,而非旨在限定本发明。
下面结合附图,对本申请的申请实施例进行描述。本领域普通技术人员可知,随着技术的发展和新
场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
本申请的说明书和权利要求书及上述附图中的术语“”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应理解这样使用的术语在适当情况下可以互换,这仅仅是描述本申请的申请实施例中对相同属性的对象在描述时所采用的区分方式。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,以便包含一系列单元的过程、方法、系统、产品或设备不必限于那些单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它单元。
为便于理解,下面将对本申请实施例提供的终端设备100的结构进行示例说明。参见图1,图1是本申请实施例提供的终端设备的结构示意图。
图1是本申请的申请实施例应用的通信系统1000的架构示意图。如图1所示,通信系统包括无线接入网100和核心网200,可选的,通信系统1000还可以包括互联网300。其中,无线接入网100可以包括至少一个无线接入网设备(如图1中的110a和110b),还可以包括至少一个终端设备(如图1中的120a-120j)。终端设备又称用户设备(UE,User Equipment)通过无线的方式与无线接入网设备相连,无线接入网设备通过无线或有线方式与核心网连接。核心网设备与无线接入网设备可以是独立的不同的物理设备,也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上,还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备和终端设备之间以及无线接入网设备和无线接入网设备之间可以通过有线或无线的方式相互连接。图1只是示意图,通信系统中还可以包括其它网络设备,如还可以包括无线中继设备和无线回传设备,在图1中未画出。
无线接入网设备(也称网络设备)是终端设备通过无线方式接入到通信系统中的接入设备。无线接入网设备可以是基站(base station)、演进型基站(evolved NodeB,eNodeB)、发送接收点(transmission reception point,TRP)、第五代(5th generation,5G)移动通信系统中的下一代基站(next generation NodeB,gNB)、第六代(6th generation,6G)移动通信系统中的下一代基站、未来移动通信系统中的基站或WiFi系统中的接入节点等;也可以是完成基站部分功能的模块或单元,例如,可以是集中式单元(central unit,CU),也可以是分布式单元(distributed unit,DU)。这里的CU完成基站的无线资源控制协议和分组数据汇聚层协议(packet data convergence protocol,PDCP)的功能,还可以完成业务数据适配协议(service data adaptation protocol,SDAP)的功能;DU完成基站的无线链路控制层和介质访问控制(medium access control,MAC)层的功能,还可以完成部分物理层或全部物理层的功能,有关上述各个协议层的具体描述,可以参考第三代合作伙伴计划(3rd generation partnership project,3GPP)的相关技术规范。无线接入网设备可以是宏基站(如图1中的110a),也可以是微基站或室内站(如图1中的110b),还可以是中继节点或施主节点等。本申请的申请实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。为了便于描述,下文以基站作为无线接入网设备的例子进行描述。
终端设备是具有无线收发功能的设备,可以向基站发送信号,或接收来自基站的信号。终端设备也可以称为终端设备、用户设备(user equipment,UE)、移动台、移动终端设备等。终端设备可以广泛应用于各种场景,例如,设备到设备(device-to-device,D2D)、车物(vehicle to everything,V2X)通信、机器类通信(machine-type communication,MTC)、物联网(internet of things,IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端设备可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的申请实施例对终端设备所采用的具体技术和具体设备形态不做限定。
基站和终端设备可以是固定位置的,也可以是可移动的。基站和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在飞机、气球和人造卫星上。本申请的申请实施例对基站和终端设备的应用场景不做限定。
基站和终端设备的角色可以是相对的,例如,图1中的直升机或无人机120i可以被配置成移动基站,对于那些通过120i接入到无线接入网100的终端设备120j来说,终端设备120i是基站;但对于
基站110a来说,120i是终端设备,即110a与120i之间是通过无线空口协议进行通信的。当然,110a与120i之间也可以是通过基站与基站之间的接口协议进行通信的,此时,相对于110a来说,120i也是基站。因此,基站和终端设备都可以统一称为通信装置,图1中的110a和110b可以称为具有基站功能的通信装置,图1中的120a-120j可以称为具有终端设备功能的通信装置。
基站和终端设备之间、基站和基站之间、终端设备和终端设备之间可以通过授权频谱进行通信,也可以通过免授权频谱进行通信,也可以同时通过授权频谱和免授权频谱进行通信;可以通过6千兆赫(gigahertz,GHz)以下的频谱进行通信,也可以通过6GHz以上的频谱进行通信,还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的申请实施例对无线通信所使用的频谱资源不做限定。
在本申请的申请实施例中,基站的功能也可以由基站中的模块(如芯片)来执行,也可以由包含有基站功能的控制子系统来执行。这里的包含有基站功能的控制子系统可以是智能电网、工业控制、智能交通、智慧城市等上述应用场景中的控制中心。终端设备的功能也可以由终端设备中的模块(如芯片或调制解调器)来执行,也可以由包含有终端设备功能的装置来执行。
在本申请中,基站向终端设备发送下行信号或下行信息,下行信息承载在下行信道上;终端设备向基站发送上行信号或上行信息,上行信息承载在上行信道上。终端设备为了与基站进行通信,需要与基站控制的小区建立无线连接。与终端设备建立了无线连接的小区称为终端设备的服务小区。当终端设备与服务小区进行通信的时候,还会受到来自邻区的信号的干扰。
在本申请的申请实施例中,时域符号可以是正交频分复用(orthogonal frequency division multiplexing,OFDM)符号,也可以是离散傅里叶变换扩频OFDM(Discrete Fourier Transform-spread-OFDM,DFT-s-OFDM)符号。如果没有特别说明,本申请实施例中的符号均指时域符号。
可以理解的是,本申请的申请实施例中,PDSCH、PDCCH和PUSCH只是分别作为下行数据信道、下行控制信道和上行数据信道一种举例,在不同的系统和不同的场景中,数据信道和控制信道可能有不同的名称,本申请的申请实施例对此并不做限定。
目前,UE可以通过载波聚合(Carrier Aggregation,CA)技术来增加通讯带宽。载波聚合技术是指通过多个载波同时为UE提供服务,每个载波可以有至少一个服务小区CC(component carrier)为UE工作。现有载波聚合技术中,通常有一个载波为主小区(PCC:primary CC),其他服务小区为辅小区(SCC:secondary CC)。辅小区使用过程中可以进行激活去激活,如果一段时间没有数据传输,网络可能会去激活辅小区,后续再有数据发送时可能考虑再激活辅小区。载波聚和包括单个频段的多个载波聚合,也包括多个频段多个载波聚合。
下面以一个多频段组合的例子进行举例说明。如图2所示,频段只有一个载波CC1。频段B有多个载波,分别为CC2和CC3。频段C有多个载波,分别为CC4和CC5。
不同UE由于硬件或者软件版本的不同,不同的UE能力并不相同,为了网络更好的为UE提供服务,网络需要知道UE的能力,以便为UE配置合适的工作模式。
如图3所示,5G的UE的能力结构中,根据UE能力归属层次不同,包括但不限于UE级的能力(称之为perUE能力)、频段级的能力(per频段)、频段组合(频段combination,BC)级的能力(称之为per BC能力)。频段级的能力是和具体频段相关的能力。频段组合常用于指示终端设备的载波聚合能力。每个频段组合中包含一个或多个频段,频段组合中的频段的能力称为per BCper频段能力,频段组合中的每个频段包含一个或多个载波,所述频段组合中的频段的载波能力称为per BC perCC能力。常规的CA操作中,多个载波之间是允许并发传输的。比如UE支持2个CC的上下行传输,则可以在两个CC上同时发送。另外在一个载波发送时又可以分为单发和双发。如果UE有两个传输通道,可以在一个载波上报MIMO(多进多出,multiple-in multipleout)层数2,表示可以支持双层发射。如果UE同时在两个载波上报支持层数2,表示多个载波可以并发2层传输(2+2),此时UE需要支持4个发射通道。
但是考虑到UE成本,发射通道数量是有限的。比如UE只能支持2个射频通道情况下,当前UE可以通过FeatureSetsCombinations上报两种可选能力,其中一种示例如下表1所示:
表1
其中,可选能力集合可以包括多种可选能力,可以代表多种可选能力都可以被终端设备支持,如表1中所示的可选能力1、可选能力2和可选能力3。
基站一般选择一种能力去配置UE工作模式。如果选择能力2,给UE配置两个子载波,则每个载波只能支持1层MIMO。如果想更换成能力1,需要重新做RRC配置更换到1个载波2层MIMO模式。效率比较低。为了克服这种缺陷,标准上引入TX switching的概念,UE可以再CC1支持2层MIMO,也在CC2支持2层MIMO,但同时告诉基站不能同时使用2+2的MIMO传输(通过TX switching的Band组合来指示)。
能力上报的其中一种示例如下表2所示:
表2
基站可以配置UE2个载波(CC1+CC2,或者CC2+CC3),但调度时控制CC1和CC2(或者CC2,CC3)不会同时使用2层MIMO,通过调度控制从下面几种发射模式切换,其中一种示例如表3所示:
表3
其中,发射模式集合可以包括多种发射模式,可以代表多种发射模式都可以被终端设备支持,如表1中所示的发射模式1、发射模式2和发射模式3。
因为发射模式的控制可以通过调度控制,不用进行RRC重配,提高载波间发射方式的效率.
另外,Band之间切换时,会有一定延迟,目前终端还可以针对每个Band pair上报对应的switching time。其中一种示例如表4所示:
表4
然而,目前的Txswithing方案中,Txswithing只支持2个Band的工作方式,更多Band参与的场景是没有考虑的,例如下面3个Band的示例如下表5:
表5
相关技术方案支持的发送模式如表6所示:
表6
一般的,终端设备在涉及至少三个频段进行传输通道切换的数据传输效率和频谱利用效率是高于终端设备在涉及两频段进行传输通道切换的数据传输效率和频谱利用效率。而然而,目前的技术方案中,只能支持两个频段参与switch,无法支持终端设备在至少三个频段参与switch,导致终端设备在switching的数据传输速率和频谱利用受限。因此,以下申请实施例对于终端设备如何提高终端设备的数据传输速率和频谱利用效率进行说明。
本申请提供的通信方法以及装置,可以应用于对于数据传输能力有一定需求的场景。下面示例性的,以一些实际场景为例对本申请实施例的应用场景进行示例说明,但并不以此作为限定。
参阅图4,图4为本申请实施例提供的一种通信方法的流程示意图。
401、网络设备向终端设备发送能力查询消息。
402、终端设备向网络设备上报终端设备的能力信息,能力信息包括N个频段集合对的指示信息集合。
其中,指示信息集合中每个指示信息与一个频段集合对关联,指示信息指示终端设备在一个频段集合对中的两个频段集合之间进行传输通道的切换,频段集合包括频段集合对中的L个频段中的至少一个频段,N为正整数。
能力信息可以是终端设备响应于能力查询消息上报的。终端设备进行切换的传输通道可以上行发射通道,也可以是下行接收通道。具体的,若本申请实施例的方法用于终端设备的上行业务中,则传输通道为上行发射通道,且频段为上行频段;若本申请实施例的方法用于终端设备的下行业务中,则传输通道为下行接收通道,且频段为下行频段。可选的,这里所述的“两个频段集合之间进行传输通道的切换”也可以理解为/替换为,在所述两个频段集合的载波之间进行传输通道的切换。
其中,L为大于或等于2的整数。一般的,频段集合对中的两个频段集合不完全重叠,且一个频段集合对中的每个频段集合包括至少一个频段。具体的,若L为2,则一个频段集合对中的每个频段集合包括一个频段。若L为大于或等于3的整数,则一个频段集合对中的至少一个频段集合包括至少两个频段。示例性的,假设一个频段集合对包括频段A和频段B,此时L为3,则该频段集合对的其中一个频段集合包括频段A,另一个频段集合包括频段B。假设一个频段集合对包括频段A、频段B和频段C,此时L为3,假设其中一个频段集合为第一频段集合,另一个频段集合为第二频段集合,则在此频段集合对中的两个频段集合包括但不限于以下几种情形:
情形一:第一频段集合包括频段A,第二频段集合包括并发的频段B和频段C。情形二:第一频段集合包括并发的频段A和B,第二频段集合包括频段C。情形三:第一频段集合包括并发的频段A和频段B,第二频段集合包括并发的频段B和频段C。情形四:第一频段集合包括频段A,第二频段集合包括频段B。
其中,N为正整数,也就是说,N可以等于1,也可以大于或等于2。示例性的,N个频段集合对可以如表7所示:
表7
需要说明的是,一个频段集合中的频段的数量,可以与终端设备的传输通道的数量有关。一般的,一个频段集合中的频段的数量不超过终端设备的传输通道的数量。示例性的,终端设备包括Q条数据传
输通道,则一个频段集合中的频段的总数量≤Q。
403、网络设备根据指示信息集合中指示信息确定至少一个频段集合对的切换时间。
其中,切换时间指示终端设备在频段集合对中的两个频段集合之间进行传输通道切换的时间。具体的,切换时间可以理解为频段集合对的其中一个频段集合切换至另一个频段集合所需要的时间。
在本申请实施例中,若L为大于或等于3的整数,则至少一个频段集合对中的至少一个频段集合是包括至少两个频段的,也就是说,N个频段集合对中的第一频段集合包括至少两个频段,和/或频段集合对中的第二频段集合包括至少两个频段,并且由于一个频段集合对中的两个频段集合不完全一致,因此,若L为大于或等于3的整数时,频段集合对是涉及到至少三个频段(band)的切换场景的。在一些情形中,终端设备在涉及至少三个频段进行传输通道切换时,终端设备可以根据数据流量需求、频段的网络配置、频段的带宽、以及频段的信道条件等,灵活确定如何在三个及以上频段之间进行传输通道的切换,因此数据传输速率高于终端设备只能在两个频段之间进行传输通道切换的数据传输速率,因此,本申请实施例的方案,可以支持终端设备涉及在至少三个频段的切换,使得终端进行频段切换的适用场景更加丰富,从而提升终端设备的数据传输速率和频谱利用效率。
其中,频段支持的或使用的传输通道可以理解为终端设备在所述频段上的载波进行通信时支持的或使用的传输通道,传输通道的数目可以对应终端设备采用MIMO传输方式时支持的MIMO层数。比如1个发射通道对应上行1层MIMO(1 MIMO layer),2个发射通道对应上行2层MIMO(2 MIMO layer)。
具体的,不一定每个频段集合对都有切换时间。如果终端设备不支持某一个频段集合对不支持切换,则该频段集合对没有切换时间。
需要说明的是,即使终端设备支持至少三个频段进行传输通道的切换,在实际的切换场景中,不代表终端设备只能上报涉及至少三个频段的传输通道切换,而可以是上报涉及两个频段的传输通道切换,也可以上报涉及至少三个频段的传输通道切换。
还需要说明的是,本申请实施例提供了一种终端设备的传输通道切换的能力的上报方式,网络设备对终端设备的传输通道切换的配置本发明不作限定。一般情况下,网络设备的配置需要满足终端设备的能力,即不超出终端设备的能力。
参阅图5,图5为本申请实施例提供的一种switch所涉及的频段的示意图。如图5所示,终端设备在频段B上使用2个传输通道进行传输的传输模式,切换至在频段A上使用1个传输通道以及在频段C上使用另一个传输通道进行传输的传输模式。在此示意中,终端涉及频段A、频段B以及频段C三种频段参与switch。
图6为本申请实施例提供的另一种switch所涉及的频段的示意图。如图6所示,终端设备需要在一条传输通道通过频段B的载波承载数据的工作状态,切换至在其中一条传输通道通过频段A的载波承载数据以及在其中另一条传输通道通过频段C的载波承载数据的工作状态。此示意中,终端涉及频段A、频段B以及频段C三种频段参与switch,但切换前终端设备所使用的传输通道的数量与切换后终端设备所使用的传输通道的数量可以不一致。
参阅图7,图7为本申请实施例提供的另一种switch所涉及的频段的示意图。如图7所示,终端设备支持频段A、频段B和频段C三个频段参与switch,但在一些场景中,也可以如图7所示,终端设备也可以是在两条传输通道通过频段B的载波承载数据的工作状态,切换至在两条传输通道通过频段C的载波承载数据的工作状态。在此示意中,虽然终端支持频段A、频段B和频段C三个频段参与switch,但终端设备也可以在两个频段之间进行传输通道的切换。
图8为本申请实施例提供的另一种switch所涉及的频段的示意图。如图8所示,终端设备需要在其中一条传输通道通过频段A的载波承载数据以及在其中另一条传输通道通过输频段B的载波承载数据的工作状态,切换至在其中一条传输通道通过频段B的载波承载数据的以及在其中另一条传输通道通过频段C的载波承载数据的的工作状态。在此示意中,终端涉及频段A、频段B以及频段C三种频段参与switch,但切换前涉及的频段与切换后涉及的频段可以有相同的部分。
图9为本申请实施例提供的另一种switch所涉及的频段的示意图。终端设备需要在其中一条传输通道通过频段A的载波承载数据以及在其中另一条传输通道通过频段B的载波承载数据的工作状态,切换至
在其中一条传输通道通过频段C的载波承载数据以及在其中另一条传输通道通过频段D的载波承载数据的工作状态。在此示意中,终端涉及频段A、频段B、频段C以及频段D四种频段参与switch。
图10为本申请实施例提供的另一种switch所涉及的频段的示意图。终端设备支持频段A、频段B、频段C和频段D四个频段参与switch,但在一些场景中,也可以如图10所示,终端设备是在两条传输通道通过频段B的载波承载数据的工作状态,切换至在两条传输通道通过频段C的载波承载数据的工作状态。在此示意中,虽然终端支持频段A、频段B、频段C和频段D四个频段参与switch,但终端设别也可以在两个频段之间进行传输通道的切换。
通过图5至图10的示意可知,虽然终端设备支持涉及至少三个频段的传输通道切换,但其进行传输通道切换所涉及的频段数量,是可以少于终端设备能够进行传输通道切换的频段数量,因此,终端设备所上报的指示信息集合所对应的频段的数量,是可以少于终端设备能够进行传输通道切换的频段数量,终端设备要上报多少数量频段的指示信息集合,可以根据需要上报,本实施例不作限制。
可选的,指示信息集合中的指示信息可以是每个频段集合对单独对应的,也就是说,指示信息的数量与频段集合对的数量一致。另外,还可以是其中一个指示信息与至少两个频段集合对对应的,也就是说,指示信息的数量少于频段集合对的数量。
在本申请实施例中,若多个频段集合对的指示信息相同,则可以是其中一个指示信息与至少两个频段集合对对应的,因此,终端设备上报的指示信息集合中的指示信息的数量少于频段集合对的数量,可以减少终端设备上报能力信息的信令开销。
在一种可能的实现中,终端设备上报满足预设条件的频段集合对。可选的,预设条件可以是频段集合对中的两个频段集合之间至少有一个频段相同。可选的,预设条件可以根据需要设置,本实施例不作限定。
在本申请实施例中,终端设备可以上报满足约束条件的频段集合对,从而适应不同的上报场景。
应理解,网络设备如何指示信息集合中指示信息确定频段集合对的切换时间,与指示信息的具体内容以及指示信息的上报方式等因素有关。因此,以下申请实施例在上述任一申请实施例的基础上,基于终端设备上报的指示信息的具体内容以及终端设备上报指示信息的方式等因素,结合网络设备根据指示信息集合中指示信息确定每个频段集合对的切换时间的方式进行说明。
首先,以终端设备上报的指示信息的具体内容为例,结合网络设备如何确定每个频段集合对的切换方式进行说明。
可选的,指示信息的作用包括但不限于指示切换时间、指示一个频段集合对中的两个频段集合之间进行传输通道切换的频段标识以及指示终端设备支持或不支持在频段集合对中两个频段集合之间进行传输通道的切换中的至少一种。以下申请实施例对于指示信息分别进行说明。
首先,以指示信息指示切换时间进行说明。
应理解,若指示信息包括切换时间,则网络设备在接收到指示信息集合时,若能清楚指示信息所对应的频段集合对,即可确定每个频段集合对的切换时间。
在一种可能的实现中,切换时间与频段集合中的频段配置的传输通道的数量有关。以终端设备包括两条传输通道为例,则切换时间还可以分为,切换1个传输通道的时间和切换两个传输通道的时间。
示例性的,对于终端设备在频段A与并发的{频段B+频段C}之间的切换时间来说,假设终端设备包括两条传输通道,终端设备在频段B和频段C组成的频段集合上进行载波聚合传输时,其中频段B上载波的传输占用1条传输通道,而频段C上载波的传输占用另一条传输通道;终端设备在频段A上的载波进行传输时,则可以是终端设备在频段A上载波的传输占用两条传输通道,也可以是终端设备在频段A上载波的传输占用其中一条传输通道,在此情况下,终端设备在频段A上载波的传输占用两条传输通道时关联的切换时间,和终端设备在频段A上载波的传输占用其中一条传输通道的切换时间可能是不一样的。因此,切换时间与频段集合中的频段占用的传输通道的数量有关。
在本申请实施例中,切换时间与频段集合中的频段配置的传输通道的数量有关,则网络设备获取的切换时间也更准确。
在一种可能的实现中,当其中一种切换时间不上报时,可以表示此种切换不支持。例如,上面2)
的例子可以具体表达为:
SwtichingTmie(切换时间元素)::=CHOICE(多选一){
notSupport(表示不支持)NULL,
value1T(切换1T的切换时间)ENUMERATED{n0us,n30us,n100us,n140us,n200us,n300us,n500us,n900us}(枚举可能的切换时间)OPTIONAL(表示值是可选出现,不出现表示1T切换不支持)
value2T(切换2T的切换时间)ENUMERATED{n0us,n30us,n100us,n140us,n200us,n300us,n500us,n900us}(枚举可能的切换时间)OPTIONAL(表示值是可选出现,不出现表示2T切换不支持)}。
在一种可能的实现中,指示信息包括切换时间。为了使得网络设备可以确定频段集合对的切换时间,可选的,指示信息还指示一个频段集合对中的两个频段集合之间进行传输通道切换的频段标识。也就是说,指示信息可以包括切换时间和频段标识。在本申请实施例中,指示信息中的切换时间和频段标识可以是关联的。
以表7中的频段集合对1为例,则频段集合对1的指示信息包括频段集合对1的切换时间。另外,为了使得网络设备可以确定频段集合对的切换时间,频段集合对1的指示信息还包括第一频段集合中频段A的频段标识;第二频段集合中频段B的频段标识以及频段C的频段标识。一般的,频段标识具有唯一性,从而准确地区分出不同的频段。可选的,频段的频段标识,可以是按照频段在频段组合中的顺序来确定。其中,所述频段组合为支持传输通道切换的频段组合。一种可能的实现方式为,所述频段组合是通过BandCombinationList-UplinkTxSwitch字段上报的频段组合。频段组合包括终端能够进行传输通道切换的多个频段。示例性的,以表7为例,若在频段组合中,频段的顺序依次为频段A、频段B、频段C和频段D,则频段A的频段标识为00,频段B的频段标识为01,频段C的频段标识为10,频段D的频段标识为11。
应理解,表7中的频段集合对2的指示信息以及频段集合对3的指示信息可以参照频段集合对1的指示信息的说明,本申请实施例不作赘述。
具体的,由于指示信息中指示频段集合中包含的第一频段集合中的频段标识和第二频段集合的频段标识,则网络设备在接收到指示信息时,则根据频段标识即可确定出具体的频段集合对,从而确定出关联的频段集合对和切换时间,由此可知,网络设备可以通过指示信息指示的切换时间以及频段标识确定N个频段集合对的切换时间。
在本申请实施例中,由于可以通过指示信息直接指示频段集合中的频段,从而确定频段集合对的切换时间,降低了网络设备确定切换时间的难度。
需要说明的是,指示信息中的频段标识,可以是按照频段集合进行区分,也可以不作区分,本申请实施例不作限定。
示例性的,若指示信息中的频段标识按照频段集合进行区分,则指示信息的表达可以如表8所示:
表8
如表8所示,第一频段集合为切换前的频段集合,第二频段集合为切换后的频段集合。以频段集合对1为例,频段集合对1的其中一个频段集合包括频段A和频段B,另一个频段集合包括频段C,并且频段
集合对1的切换时间为T1。同理,以频段集合对1为例,频段集合对1的其中一个频段集合包括频段A和频段B,另一个频段集合包括频段D,并且频段集合对1的切换时间为T2。同理,频段集合对3以及频段集合对4可以参照频段集合对1和频段集合对2的说明,再次不作赘述。应理解,将指示信息中的频段标识按照频段集合进行区分,则指示信息所指示的切换时间也更准确。需要特别强调的是,表8所示的方案也可以由第二频段集合是切换前的频段集合,第一频段集合是切换后的频段集合。在此不再赘述。从第一频段集合切换到第二频段集合的切换时间,和从第二频段集合切换到第一频段集合的切换时间可以是相同的,也可以是不同的。进一步的,若不同,则指示信息中指示切换前的频段集合和切换后的频段集合。示例性的,若指示信息中的频段标识不按照频段集合进行区分,即指示信息指示频段集合对中包括的频段,不需要区分第一频段集合和第二频段集合。换句话说,指示信息用于指示频段集合对中的频段(如频段A、频段B与频段C)之间传输通道的切换,则指示信息的表达可以如表9所示:
表9
如表9所示,涉及到频段A、频段B和频段C的频段集合对的切换时间均为T1。应理解,指示信息中的频段标识不区分频段标识所在的频段集合,可以减少指示信息的信令开销。
如表9所示,以第一个频段集合对为例,则终端设备的传输通道在频段A上的载波与并发的{频段B和频段C}上载波之间的切换,在并发的{频段A和频段B}的载波与频段C上的载波之间的切换,在并发的{频段A+频段C}上的载波与频段B上的载波之间的切换的切换时间相同,且相同的切换时间为T1。同理,涉及到频段A、频段B和频段D的频段集合对的切换时间均为T2。涉及到频段A、频段B、频段C和频段D的频段集合对的切换时间均为T3。
示例性的,指示信息中的频段标识不区分频段标识所在的频段集合,终端设备上报的指示信息集合还可以如表10所示:
表10
可选的,在本申请实施例中,表10中的时间可以是按照预设顺序上报的。里存在一个预设的顺序,但是每个顺序对应的频段集合对是不需要区分频段集合的,只需要上报频段集合对的频段,所以才需要报“不支持”,报不支持也是为了保证顺序一致。
如表10所示,第一行表示预设的所述N个频段集合对的顺序,第二行表示频段集合对的频段,第三行表示指示信息集合,指示信息集合中的指示信息可以指示切换时间,还可以指示终端设备支持或不支持关联的频段集合对上传输通道的切换。其中,“不支持”表示终端设备不支持在频段A和频段C之间的传输通道切换,T1、T2……T10表示在频段集合对的频段之间切换传输通道的切换时间。所述终端设备根据预设的所述N个频段集合对与所述指示信息集合中所述指示信息的对应关系,向所述网络设备上报所述终端设备的能力信息,所述指示信息集合中的指示信息的顺序与预设的所述N个频段集合对的顺序相同。如表10所示,位于第一位的频段集合对包含的频段包括频段A和频段B,对应的指示信息指示终端设备支持关联的频段集合对上传输通道的切换,切换时间为T1;位于第二位的频段集合对包含的频
段包括频段A和频段C,对应的指示信息指示终端设备部支持关联的频段集合上传输通道的切换。依次类推。如此,终端设备仅上报第三行的指示信息集合,而无需上报指示信息集合中的指示信息对应的频段集合对中的频段标识,网络设备可以根据预设的频段集合对的顺序确定指示信息集合中的每个指示信息关联的频段集合对,因此可以降低信令开销。
在一种可能的实现中,指示信息指示N个频段集合对中的M个频段集合对关联的切换时间相同,M个频段集合对中的每个频段集合对包括的频段相同,2≤M。
在本申请实施例中,通过指示信息指示N个频段集合对中的M个频段集合对关联的切换时间相同,M个频段集合对中的每个频段集合对包括的频段相同,2≤M,则终端设备在上报能力信息时,对于相同的切换时间可以只上报一个,而不需要针对每个频段集合对均对应上报一个切换时间,由此可知,能力信息中的切换时间的数量小于N,因此本申请实施例可以减少终端设备与网络设备之间的信令开销。
在一种可能的实现中,2≤N,此时终端设备将至少两个频段集合对的指示信息集合上报。N个频段集合对与一个频段组合相关联,频段组合包括终端设备支持的N个频段集合对中的频段。
示例性的,一个频段组合下的至少两个频段集合对可以如表11所示:
表11
如表11所示,频段集合对1、频段集合对2以及频段集合对3与一个频段组合相关联,则频段组合包括频段A、频段B、频段C和频段D。
以频段组合包括4个频段且终端设备包括两条传输通道为例,因为最多4个频段,则频段在频段组合中的顺序号用2bit可以指示出来,例如0代表频段组合中第一个频段,1代表第二个上行频段。切换时间假定支持8个选项值(例如:10us,20us,50us,100us等),则需要3bit。
上报频段集合对的切换时间,若每个频段集合对中的频段为至少三个,则上报一组频段集合对的切换时间需要的开销最小为:2bit(频段A)+2bit(频段B)+2bit(频段C)+3bit(x us)=9bits。若每个频段集合对中的频段数量为至少两个,则上报一组频段集合对的切换时间需要的开销最小为:2bit(频段A)+2bit(频段B)+3bit(x us)=7bits。如果一个频段集合对涉及4个频段的切换,则上报频段集合对需要的开销11bits。
假设每个频段集合对中的频段数量为大于或等于两个,则需要上报的频段集合对的情形可以如表12所示:
表12
表12可表达为:第一行的每个元素表示为在第一时刻终端设备进行上行传输的频段集合,第一列的每个元素表示在第二时刻终端进行上行传输的频段集合,第二时刻与第一时刻相比,终端设备在两个频段集合之间进行了上行发射通道的切换(或者是行表示切换后状态,列表示切换前状态)。填写为无效的格表示配对上不需要上报值(例如:对角线单元格切换前后状态没有改变,下三角的配对和上三角配对完全重复了,则对应的切换时间一致,假设从A切换到B,和从B切换到A的切换时间是相同的,所以不用上报)。
如表12所示,这样上报45个场景大约需要45*10bits=450bits。
假设每个频段集合对中的频段数量为大于或等于三个,则需要上报的频段集合对的情形可以如表13所示:
表13
如表13所示,这样上报39个场景大约需要39*10bits=390bits。
示例性的,上述表格中的“无效”可以表示为“NULL”或者“default”。
在以上申请实施例中,以指示信息指示切换时间进行了一些说明。
其次,以指示信息指示一个频段集合对中的两个频段集合之间进行传输通道切换的频段标识进行说明。
应理解,若终端设备上报的指示信息集合中的指示信息,指示了一个频段集合对中的两个频段集合之间进行传输通道切换的频段标识,而并未指示切换时间的情况下,网络设备则需要根据指示信息所指示的频段标识,通过一定手段来确定频段集合对的切换时间。
以下申请实施例对于网络设备如何根据指示信息所指示的频段标识来确定频段集合对的切换时间进行说明。为了便于说明,以下将包括两个频段的频段集合对称为第一频段集合对,将包括至少三个频段的频段集合对称为第二频段集合对。
参阅图11,图11为本申请实施例提供的另一种通信方法的流程示意图。本申请实施例提供的通信方法包括步骤1101至步骤1103。
1101、网络设备向终端设备发送能力查询消息。
1102、终端设备向网络设备上报终端设备的能力信息,能力信息中的指示信息集合包括第一频段集合对的第一指示信息以及第二频段集合对的第二指示信息。
其中,第一指示信息指示终端设备在第一频段集合对中的两个频段集合之间进行传输通道切换的第
一切换时间。第二指示信息指示终端在第二频段集合对的两个频段集合之间进行传输通道的切换。
在本申请实施例中,第一频段集合对包括两个频段,也就是说,第一频段集合对是涉及两个频段之间的切换。第二频段集合对包括至少三个频段,也就是说,第二频段集合对是涉及至少三个频段的切换。
1103、网络设备根据第一指示信息集合以及第二指示信息集合确定第二频段集合对的第二切换时间。
由于第一频段集合对是涉及两个频段之间的切换,而第二频段集合对是涉及至少三个频段的切换,也就是说,本申请实施例通过两个频段之间的切换时间来确定至少三个频段进行传输通道切换的切换时间。
在本申请实施例中,若第一指示信息指示终端设备在第一频段集合对的第一切换时间,而第二指示信息并未指示第二频段集合对的第二切换时间,也就是说,第一频段集合对的第一切换时间对于网络设备来说是已知的,而网络设备通过第二指示信息指示的频段标识,可以得知终端设备能够进行传输通道切换的第二频段集合对,从而通过第一指示信息指示的第一切换时间来确定第二频段集合对的第二切换时间。由于本申请实施例的第二指示信息指示了第二频段集合对的频段标识而并未指示第二切换时间,因此终端设备向网络设备上报的能力信息中,减少了第二切换时间的信息量,由此可知,终端设备与网络设备之间的信令开销得以减小,同时,由于网络设备可以根据第一指示信息所指示的第一切换时间来确定第二频段集合对的第二切换时间,因此网络设备可以得知第一频段集合对的第一切换时间以及第二频段集合对的第二切换时间,也就是说,网络设备可以得知频段集合对的切换时间,由此可知,本申请实施例在减少了终端设备与网络设备之间的信令开销的同时,还能使得网络设备可以得知频段集合对的切换时间。
在一种可能的实现中,第二频段集合对的第二切换时间与终端设备在第二频段集合对中的其中一个频段集合中的任一个频段与其中另一个频段集合中的任一个频段之间进行传输通道切换的时间有关。
示例性的,假设,第二频段集合对涉及频段A、频段B、频段C以及频段D的切换场景,且终端设备具有两个传输通道,则第二频段集合对包括但不限于以下几种情形:
情形一:第二频段集合对中第一频段集合包括频段A和频段B,第二频段集合对中第二频段集合包括频段C以及频段D。
情形二:第二频段集合对中第一频段集合包括频段A和频段C,第二频段集合对中第二频段集合包括频段B以及频段D。
情形三:第二频段集合对中第一频段集合包括频段A和频段D,第二频段集合对中第二频段集合包括频段B以及频段C。
假设,第二频段集合对涉及频段A、频段B以及频段C的切换场景,且终端设备具有两个传输通道,则第二频段集合对包括但不限于以下几种情形:
情形四:第二频段集合对中第一频段集合包括频段A和频段B,第二频段集合对中第二频段集合包括频段C。
情形五:第二频段集合对中第一频段集合包括频段A和频段C,第二频段集合对中第二频段集合包括频段B。
情形六:第二频段集合对中第一频段集合包括频段B和频段C,第二频段集合对中第二频段集合包括频段A。
以情形一为例,则与第二频段集合对的第二切换时间有关的切换时间可以如表14所示:
表14
具体的,如表14所示,情形一的第二频段集合对的第二切换时间与频段A与频段C之间的切换时间20us、频段A与频段D之间的切换时间50us、频段B与频段C之间的切换时间30us以及频段B与频段D之间的切换时间35us有关。
以情形四为例,则与第二频段集合对的第二切换时间有关的切换时间可以如表15所示:
表15
具体的,如表15所示,情形四的第二频段集合对的第二切换时间与频段A与频段C之间的切换时间20us、频段B与频段C之间的切换时间30us有关。
在一种可能的实现中,频段集合对的切换时间为终端设备在频段集合对中的其中一个频段集合中的任一个频段与其中另一个频段集合中的任一个频段之间进行传输通道切换的最大时间。
以情形一为例,则情形一的第二频段集合对的切换时间为50us。
以情形四为例,则情形四的第二频段结合对的切换时间为30us。
在本申请实施例中,网络设备在获知终端设备的切换时间能力后,就可以确定在所述频段集合对的两个频段集合之间进行发射通道切换的切换时间内终端设备不会发送上行信令或数据,而不是因为信道条件较差等原因未接收到上行信令或数据;网络设备在切换时间内也不会分配上行资源、调度上行传输,可以避免无线资源的浪费。
由于在这段切换时间内网络设备会认为终端设备不具备发送上行信令或数据的能力,也不会调度上行传输。因此取最大值的意义在于,如果网络设备认为的切换时间小于终端设备实际进行传输通道切换的时间,那么可能导致网络设备在终端设备无法发送上行的时间内分配了上行资源,调度了上行传输,导致无线资源的浪费;当网络设备未在所述调度的上行资源上接收到终端设备发送的上行数据,则会误认为信道条件较差,从而调整为更为保守的调度策略(比如更低阶的MCS(调制编码方式,modulation and coding scheme)),导致上行数据速率降低。因此,通过将最大时间作为频段集合对的切换时间,可以进一步提高上行数据速率。
本申请实施例根据两个频段确定三个频段的切换时间的实施例可以和其他实施例结合使用。即终端设备可以根据预设顺序上报指示信息(不上报频段标识),也可以上报频段集合对的频段标识。。以指示信息指示终端设备支持或不支持在频段集合对中两个频段集合之间进行传输通道的切换进行说明。可选的,指示信息包括频段集合对的支持标识以及频段集合对的不支持标识。
在本申请实施例中,通过指示信息指示终端设备支持或不支持频段集合对中两个频段集合之间进行传输通道的切换,则网络设备可以得知终端设备支持的频段集合对以及不支持的频段集合对,基于此,网络设备可以控制终端设备在支持的频段集合对上进行切换。
需要说明的是,如果终端设备是根据预设的所述N个频段集合对与所述指示信息集合中所述指示信息的对应关系,向所述网络设备上报所述终端设备的能力信息的话,则这里对N个频段集合对要上报支持和不支持的目的主要是为了保证N个频段集合对和指示信息集合中的N个指示信息的一一对应关系不被打乱。
可选的,支持标识以及不支持标识可以和频段标识以及切换时间一同上报,也可以单独上报,也就是说,可以只上报支持标识以及不支持标识而不上报频段标识以及切换时间等。
在一种可能的实现中,指示信息只指示终端设备支持的频段集合对或者不支持的频段集合对。
在本申请实施例中,指示信息只指示终端设备支持的频段集合对或者不支持的频段集合对,也就是说,指示信息并未针对频段集合对的支持或不支持的情况进行指示,因此可以减少终端设备上报能力信息的信令开销。
在一种可能的实现中,指示信息指示终端设备支持的频段集合对,还是指示终端设备不支持的频段集合对,与终端设备支持的频段集合对的数量和终端设备不支持的频段集合对的数量有关。
可选的,在终端设备支持的频段集合对的数量大于终端设备不支持的频段集合对的数量的情况下,指示信息指示终端设备不支持的频段集合对。在终端设备支持的频段集合对的数量小于终端设备不支持的频段集合对的数量的情况下,指示信息指示终端设备支持的频段集合对。
在本申请实施例中,在终端设备支持的频段集合对以及不支持的频段集合对中,选择数量较小的一种上报,则指示信息指示终端设备支持的频段集合对的数量或者指示信息指示终端设备不支持的频段集
合对的数量分别小于N/2,从而减少终端设备上报能力信息的信令开销。
以上申请实施例中,以终端设备上报的指示信息的具体内容为例,结合网络设备如何确定每个频段集合对的切换方式进行了说明。以下申请实施例在上述任一申请实施例的基础上,以终端设备上报指示信息的方式为例,结合网络设备如何确定每个频段集合对的切换方式进行说明。
参阅图12,图12为本申请实施例提供的另一种通信方法的流程示意图。本申请实施例提供的通信方法包括步骤1001至步骤1003。
1201、网络设备向终端设备发送能力查询消息。
1202、终端设备根据预设的N个频段集合对与指示信息集合中指示信息的对应关系,向网络设备上报终端设备的能力信息,能力信息包括指示信息集合。
在一种可能的实现中,对应关系与预设的N个频段集合对的顺序有关。
可选的,指示信息集合中的指示信息的顺序与预设的N个频段集合对的顺序相同。
在一种可能的实现中,预设的N个频段集合对的顺序与第一预设表中N个元素的排列顺序存在对应关系。需要说明的是,本申请实施例中,第一预设表中存在至少N个元素。
在一种可能的实现中,所述第一预设表中第i行第j列的元素为Eij,所述N个元素中的每个元素Eij按列和行的递增顺序依次排列,所述N个频段集合对中包括第i个频段集合和第j个频段集合的频段集合对与表中的元素Eij存在对应关系,其中,j大于i,1≤i≤K,j≤K,K、i、j均为正整数,K是所述频段组合关联的频段集合的数目。
可选的,K个频段集合由所述频段组合中的P个频段中的任意Q个频段组成的,所述K个频段集合在所述第一预设表中按照预设顺序排列,Q为正整数。一般来说,Q小于或等于传输通道的数量,且Q小于或等于P。
示例性的,若每个频段集合对包括至少两个频段,则第一预设表可以如表16所示:
表16
结合表16可知,指示信息集合中可以包括45个指示信息,示例性的,第25个指示信息所对应的频段集合对的其中一个频段集合包括频段A和频段B,第25个指示信息所对应的频段集合对的其中另一个频段集合包括频段D。又示例性的,第36个指示信息所对应的频段集合对的其中一个频段集合包括频段A和频段C,第36个指示信息所对应的频段集合对的其中另一个频段集合包括频段A和频段D。
应理解,指示信息集合中的任一个指示信息所对应的频段集合对,都可以通过第一预设表确定,本申请实施例不作赘述。
也就是说,终端设备可以根据第一预设表上报能力信息,使得指示信息集合中的各指示信息与第一预设表中的元素对应。
可选的,若每个频段集合对包括至少三个频段,则第一预设表可以如表17所示:
表17
结合表17可知,指示信息集合中可以包括39个指示信息,示例性的,第25个指示信息所对应的频段集合对的其中一个频段集合包括频段A和频段B,第25个指示信息所对应的频段集合对的其中另一个频段集合包括频段A和频段C。又示例性的,第36个指示信息所对应的频段集合对的其中一个频段集合包括频段A和频段D,第36个指示信息所对应的频段集合对的其中另一个频段集合包括频段C和频段D。
1203、网络设备根据预设的N个频段集合对与指示信息集合中指示信息的对应关系确定每个频段集合对的切换时间。
由于能力信息是终端设备根据频段集合对与指示信息的对应关系上报的,若网络设备得知对应关系,也就能够得知指示信息集合中的各指示信息所对应的频段集合对,进而确定频段集合对的切换时间。
在本申请实施例中,由于指示信息集合中的指示信息与频段集合对具有对应关系,则网络设备可以根据对应关系,确定指示信息集合中的各指示信息所对应的频段集合对,也就是说,即使指示信息未指示频段标识也能使得网络设备确定指示信息所对应的频段集合对,且不需要指示频段标识也就减少了指示信息指示频段标识所需要的数据量,由此可知,降低了终端设备向网络设备之间的信令开销。
在一种可能的实现中,对应关系与预设的N个频段集合对的顺序有关。
可选的,指示信息集合中的指示信息的顺序与预设的N个频段集合对的顺序相同。
在一种可能的实现中,所述预设的N个频段集合对的顺序与第二预设表中N个元素的排列顺序存在对应关系。
在一种可能的实现中,所述第二预设表中第i行第j列的元素为Eij,所述N个元素中的每个元素Eij按列和行的递增顺序依次排列,所述N个频段集合对中包括第i个频段集合和第j个频段集合的频段集合对与表中的元素Eij存在对应关系,其中,j大于i,1≤i≤K,j≤K,K、i、j均为正整数,K是所述频段组合关联的频段集合的数目。
应理解,第二预设表可以与第一预设表相同,则网络设备和终端设备可以基于相同的预设表,来确定指示信息集合中的各指示信息所对应的频段集合对。
具体的,若每个频段集合对包括至少两个频段,则第二预设表可以如表16所示;若每个频段集合对包括至少三个频段,则第二预设表可以如表17所示。
在本申请实施例中,指示信息的作用包括但不限于指示切换时间以及指示终端设备支持或不支持在频段集合对中两个频段集合之间进行传输通道的切换的至少一种。以下申请实施例对于指示信息分别进行说明。
首先,以指示信息指示切换时间为例进行说明。
以终端设备包括两条传输通道为例,结合表16进行说明。
1)首先确定总的元素数目(即表格的行数/列数)。假设频段组合中共包括P个频段,则元素数目为包含1个频段的第一频段集合数目(P)、包含2个频段的第一频段集合数目(P*(P-1)/2)、……包含P-1个频段的第一频段集合数目的总和。假设终端设备支持的传输通道数目为2,则频段集合最多包含2个频段。即总的的元素数目为包含1个频段的频段集合数目和包含2个频段的频段集合数目的和。以P=4为例,第一频段集合中的元素数目为K=10。(A,B,C,D,AB,AC,AD,BC,BD,CD)。
2)然后确定每个元素到其余各元素的切换时间。对第一个元素A,确定其切换到其余的K-1个元素的切换时间;对第二个元素B,上报其切换到其余的K-2个元素的切换时间,依次类推。总共上报R个切换时间,R=K*(K-1)/2。
由此,可以确定出指示信息集合的长度为R=K*(K-1)/2。以P=4为例,K=10,R=45。
结合表16可知,则终端设备上报的指示信息集合可以如下所示:
{T1,T2,T3……T44,T45}。
结合表17可知,则终端设备上报的指示信息集合可以如下所示:
{T1,T2,T3……T38,T39}。
则网络设备在接收到指示信息集合时,可以通过第二预设表来确定各切换时间所对应的元素,从而确定出各切换时间所对应的频段集合对。
在一种可能的实现中,指示信息还可以指示终端设备支持或不支持在频段集合对的两个频段集合之间进行传输通道的切换。具体的,如何表达终端设备支持或不支持在频段集合对的两个频段集合之间进行传输通道的切换,可以参考上述实施例的描述,在此不作赘述。
结合表16可知,则终端设备上报的指示信息集合可以如下所示:
{T1,不支持,T3……T44,T45}。
在此示例中,不支持标识在指示信息集合中的第二位置,相应的,结合表16可知,第二位置所对应的频段集合对中的其中一个频段集合包括频段A,第二位置所对应的频段集合对中的其中另一个频段集合包括频段C,也就是说,终端设备不支持在频段A和频段C之间进行传输通道的切换。
结合表17可知,则终端设备上报的指示信息集合可以如下所示:
{T1,不支持,T3……T38,T39}。
在此示例中,不支持标识在指示信息集合中的第二位置,相应的,结合表17可知,第二位置所对应的频段集合对中的其中一个频段集合包括频段A,第二位置所对应的频段集合对中的其中另一个频段集合包括频段A和频段C,也就是说,终端设备不支持在频段A和频段A+频段C之间进行传输通道的切换。
在本申请实施例中,在终端设备根据照对应关系上报切换时间时,对于终端设备不支持的频段集合对,上报不支持标识,以便指示信息集合的数据长度不会改变,从而使得整个指示信息集合中的每个指示信息所对应的频段集合对不会错乱。
其次,以指示信息指示终端设备支持或不支持频段集合对中两个频段集合之间进行传输通道的切换。
结合表16可知,则终端设备上报的指示信息集合可以如下所示:
{110101100110011011100011010101010011000111111}。
在此示例中,第10个指示信息为1,表示终端设备支持,结合表16可知,第10个指示信息所对应的频段集合对的其中一个频段集合包括频段B,第10个指示信息所对应的频段集合对的其中一个频段集合包括频段C,也就是说,终端设备支持在频段A和频段B之间进行传输通道的切换。同理,第39个指示信息为0,表示终端设备不支持,结合表17可知,第39个指示信息所对应的频段集合对的其中一个频段集合包括频段A和频段C,第39个指示信息所对应的频段集合对的其中一个频段集合包括频段C和频段D,也就是说,终端设备不支持在频段A+C和频段C+D之间的传输通道的切换。
结合表17可知,则终端设备上报的指示信息集合可以如下所示:
{110101100110011011100011010101010011000}。
在此示例中,第6个指示信息为1,表示终端设备支持。结合表17可知,第6个指示信息所对应的频段集合对的其中一个频段集合包括频段A,第6个指示信息所对应的频段集合对的其中另一个频段集合包括频段C和频段D,也就是说,终端设备支持在频段A和频段C+D之间的传输通道的切换。
在本申请实施例中,终端设备可以根据第一预设表,结合终端设备支持或不支持频段集合对的情况向网络设备上报指示信息集合,则网络设备可以根据指示信息集合,结合第二预设表确定出终端设备支持的频段集合对,从而确定出终端设备所支持的频段集合对的切换时间。
应理解,对于涉及至少三个频段的频段集合对,涉及至少三个频段的频段集合对的指示信息未指示切换时间的情况下,网络设备如何确定出涉及至少三个频段的频段集合对的切换时间可以参考图6所对应的申请实施例的描述,在此不作赘述。
在一种可能的实现中,对于上行业务来说,如果对于终端设备的下行业务有影响,则可以在上报切换时间同时把影响的下行频段编号也同上上报上去,比如对于一个场景频段A+B切换到频段C,其上报切换时间为20us,同时可以指示此次切换会影响到下行频段B和频段C的发射。
在本申请实施例中,终端把上行发射通道切换影响的下行传输的下行频段上报给网络设备的目的是,让网络设备获知在所述切换时间内终端设备无法接收下行信令和数据,因此网络设备在切换时间内不发送下行信令和数据,避免丢包。
可以理解的是,为了实现上述申请实施例中功能,基站和终端设备包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应很容易意识到,结合本申请中所公开的申请实施例描述的各示例的单元及方法步骤,本申请能够以硬件或硬件和计算机软件相结合的形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用场景和设计约束条件。
图13和图14为本申请的申请实施例提供的可能的通信装置的结构示意图。这些通信装置可以用于实现上述方法申请实施例中终端设备或基站的功能,因此也能实现上述方法申请实施例所具备的有益效果。在本申请的申请实施例中,通信装置可以是如图1所示的终端设备120a-120j中的一个,也可以是如图1所示的基站110a或110b,还可以是应用于终端设备或基站的模块(如芯片)。
如图13所示,通信装置1300包括处理单元1310和收发单元1320。通信装置1300用于实现上述图4、图11或图12中所示的方法申请实施例中终端设备或网络设备的功能。
当通信装置1300用于实现图4所示的方法申请实施例中终端设备的功能时:收发单元1320用于接收来自网络设备的能力查询消息,以及向网络设备上报终端设备的能力信息。
当通信装置1300用于实现图4所示的方法申请实施例中网络设备的功能时:收发单元1320用于发送能力查询消息以及接收终端设备上报的能力信息;处理单元1310用于根据指示信息集合中指示信息确定每个频段集合对的切换时间,切换时间指示终端设备在频段集合对中的两个频段集合之间进行传输通道切换的时间。
当通信装置1300用于实现图11所示的方法申请实施例中终端设备的功能时:收发单元1320用于接收来自网络设备的能力查询消息,以及向网络设备上报终端设备的能力信息,能力信息中的指示信息集合包括第一频段集合对的第一指示信息以及第二频段集合对的第二指示信息。
当通信装置1300用于实现图11所示的方法申请实施例中网络设备的功能时:收发单元1320用于发送能力查询消息以及接收终端设备上报的能力信息;处理单元1310用于根据第一指示信息集合以及第二指示信息集合确定第二频段集合对的第二切换时间。
当通信装置1300用于实现图12所示的方法申请实施例中终端设备的功能时:收发单元1320用于接收来自网络设备的能力查询消息,以及根据预设的N个频段集合对与指示信息集合中指示信息的对应关系,向网络设备上报终端设备的能力信息。
当通信装置1300用于实现图12所示的方法申请实施例中网络设备的功能时:收发单元1320用于发送能力查询消息以及接收终端设备上报的能力信息;处理单元1310用于根据预设的N个频段集合对与指示信息集合中指示信息的对应关系确定每个频段集合对的切换时间。
有关上述处理单元1310和收发单元1320更详细的描述可以参考图4、图11或图12所示的方法申请实施例中相关描述。
如图14所示,通信装置1400包括处理器1410和接口电路1420。处理器1410和接口电路1420之间相互耦合。可以理解的是,接口电路1420可以为收发器或输入输出接口。可选的,通信装置1400还可以包括存储器1430,用于存储处理器1410执行的指令或存储处理器1410运行指令所需要的输入数据或存储处理器1410运行指令后产生的数据。
当通信装置1400用于实现图4、图11或图12所示的方法时,处理器1410用于实现上述处理单元1310的功能,接口电路1420用于实现上述收发单元1320的功能。
当上述通信装置为应用于终端设备的芯片时,终端设备芯片实现上述方法申请实施例中终端设备的功能。终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息,信息是网络设备发送给终端设备的;或者,终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息,信息是终端设备发送给网络设备的。
当上述通信装置为应用于网络设备的模块时,网络设备模块实现上述方法申请实施例中网络设备的功能。网络设备模块从网络设备中的其它模块(如射频模块或天线)接收信息,信息是终端设备发送给网络设备的;或者,网络设备模块向网络设备中的其它模块(如射频模块或天线)发送信息,信息是网络设备发送给终端设备的。这里的网络设备模块可以是网络设备的基带芯片,也可以是DU或其他模块,这里的DU可以是开放式无线接入网(open radio access network,O-RAN)架构下的DU。
可以理解的是,本申请的申请实施例中的处理器可以是中央处理单元(Central Processing Unit,CPU),还可以是其它通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其它可编程逻辑器件、晶体管逻辑器件,硬件部件或者其任意组合。通用处理器可以是微处理器,也可以是任何常规的处理器。
本申请实施例中的装置为网络设备时,该装置可以如图15所示。该装置可包括一个或多个射频单元,如远端射频单元(remote radio unit,RRU)1510和一个或多个基带单元(baseband unit,BBU)(也可称为数字单元,digital unit,DU)1520。所述RRU 1510可以称为收发模块,该收发模块可以包括发送模块和接收模块,或者,该收发模块可以是一个能够实现发送和接收功能的模块。该收发模块可以与图13中的收发模块1320对应,即可由收发模块执行由收发模块1320执行的动作。可选地,该收发模块还可以称为收发机、收发电路、或者收发器等等,其可以包括至少一个天线1511和射频单元1512。该RRU 1510部分主要用于射频信号的收发以及射频信号与基带信号的转换。该BBU 2410部分主要用于进行基带处理,对基站进行控制等。该RRU 1510与BBU 1520可以是物理上设置在一起,也可以物理上分离设置的,即分布式基站。
该BBU 1520为基站的控制中心,也可以称为处理模块,可以与图13中的处理模块1310对应,主要用于完成基带处理功能,如信道编码,复用,调制,扩频等等,此外,可由处理模块执行由处理模块1310执行的动作。例如该BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程。
在一个示例中,该BBU 1520可以由一个或多个单板构成,多个单板可以共同支持单一接入制式的无线接入网(如LTE网络),也可以分别支持不同接入制式的无线接入网(如LTE网络,5G网络或其他网络)。该BBU 1520还包括存储器1521和处理器1522。该存储器1521用以存储必要的指令和数据。该处理器1522用于控制基站进行必要的动作,例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。该存储器1521和处理器1522可以服务于一个或多个单板。也就是说,可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
本申请的申请实施例中的方法步骤可以在硬件中实现,也可以在可由处理器执行的软件指令中实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于随机存取存储器、闪存、只读存储器、可编程只读存储器、可擦除可编程只读存储器、电可擦除可编程只读存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从存储介质读取信息,且可向存储介质写入信息。存储介质也可以是处理器的组成部分。处理
器和存储介质可以位于ASIC中。另外,ASIC可以位于网络设备或终端设备中。处理器和存储介质也可以作为分立组件存在于网络设备或终端设备中。
在上述申请实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行计算机程序或指令时,全部或部分地执行本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其它可编程装置。计算机程序或指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,计算机程序或指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器、数据中心等数据存储设备。可用介质可以是磁性介质,例如,软盘、硬盘、磁带;也可以是光介质,例如,数字视频光盘;还可以是半导体介质,例如,固态硬盘。计算机可读存储介质可以是易失性或非易失性存储介质,或可包括易失性和非易失性两种类型的存储介质。
在本申请的各个申请实施例中,如果没有特殊说明以及逻辑冲突,不同的申请实施例之间的术语和/或描述具有一致性、且可以相互引用,不同的申请实施例中的技术特征根据其内在的逻辑关系可以组合形成新的申请实施例。
根据说明书是否用到可选:本申请中,“至少一个”是指一个或者多个,“多个”是指两个或至少两个。“和/或”,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的情况,其中A,B可以是单数或者复数。在本申请的文字描述中,字符“/”,一般表示前后关联对象是一种“或”的关系;在本申请的公式中,字符“/”,表示前后关联对象是一种“相除”的关系。“包括A,B和C中的至少一个”可以表示:包括A;包括B;包括C;包括A和B;包括A和C;包括B和C;包括A、B和C。
可以理解的是,在本申请的申请实施例中涉及的各种数字编号仅为描述方便进行的区分,并不用来限制本申请的申请实施例的范围。上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定。
Claims (31)
- 一种通信方法,其特征在于,所述方法包括:接收来自网络设备的能力查询消息;向所述网络设备上报终端设备的能力信息,所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数,N为正整数。
- 根据权利要求1所述的方法,其特征在于,2≤N,所述N个频段集合对与一个频段组合相关联,所述频段组合包括所述终端设备支持的所述N个频段集合对中的全部频段,所述向网络设备上报终端设备的能力信息,包括:根据预设的所述N个频段集合对与所述指示信息集合中所述指示信息的对应关系,向所述网络设备上报所述终端设备的能力信息。
- 根据权利要求2所述的方法,其特征在于,所述指示信息集合中的指示信息的顺序与预设的所述N个频段集合对的顺序相同。
- 根据权利要求2或3所述的方法,其特征在于,所述预设的N个频段集合对的顺序与第一预设表中N个元素的排列顺序存在对应关系。
- 根据权利要求4所述的方法,其特征在于,所述第一预设表中N个元素的排列顺序包括:所述第一预设表中第i行第j列的元素为Eij,所述N个元素中的每个元素Eij按列和行的递增顺序依次排列,所述N个频段集合对中包括第i个频段集合和第j个频段集合的频段集合对与表中的元素Eij存在对应关系,其中,j大于i,1≤i≤K,j≤K,K、i、j均为正整数,K是所述频段组合关联的频段集合的数目。
- 根据权利要求5所述的方法,其特征在于,K个频段集合由所述频段组合中的P个频段中的任意Q个频段组成的,所述K个频段集合在所述第一预设表中按照预设顺序排列,Q为正整数。
- 根据权利要求1-5中任一项所述的方法,其特征在于,所述指示信息指示切换时间。
- 根据权利要求7所述的方法,其特征在于,所述切换时间与所述频段集合中的所述频段配置的所述传输通道的数量有关。
- 根据权利要求1、7-8中任一项所述的方法,其特征在于,所述指示信息指示所述两个频段集合之间进行传输通道切换的频段标识。
- 根据权利要求1-9中任一项所述的方法,其特征在于,所述指示信息指示所述终端设备支持或不支持在所述频段集合对中两个频段集合之间进行传输通道的切换。
- 根据权利要求1-10中任一项所述的方法,其特征在于,所述指示信息指示所述N个频段集合对中的M个频段集合对关联的切换时间相同,所述M个频段集合对中的每个频段集合对包括的频段相同,2≤M。
- 根据权利要求1-11中任一项所述的方法,其特征在于,所述频段集合对中的所述两个频段集合 之间至少有一个频段相同。
- 一种通信方法,其特征在于,包括:发送能力查询消息;接收终端设备上报的能力信息,所述能力信息包括N个频段集合对的指示信息集合,所述指示信息集合中每个指示信息与一个频段集合对关联,所述指示信息指示所述终端设备在所述一个频段集合对中的两个频段集合之间进行传输通道的切换,所述频段集合包括所述频段集合对中的L个频段中的至少一个频段,L为大于或等于3的整数,N为正整数;根据所述指示信息集合中指示信息确定至少一个频段集合对的切换时间,所述切换时间指示所述终端设备在所述频段集合对中的所述两个频段集合之间进行传输通道切换的时间。
- 根据权利要求13所述的方法,其特征在于,所述根据所述指示信息集合中的指示信息确定至少一个频段集合对的切换时间,包括:根据预设的所述N个频段集合对与所述指示信息集合中指示信息的对应关系确定至少一个频段集合对的切换时间。
- 根据权利要求14所述的方法,其特征在于,所述指示信息集合中的指示信息的顺序与预设的所述N个频段集合对的顺序相同。
- 根据权利要求14或15所述的方法,其特征在于,所述预设的N个频段集合对的顺序与第二预设表中N个元素的排列顺序存在对应关系。
- 根据权利要求16所述的方法,其特征在于,所述第二预设表中N个元素的排列顺序包括:所述第二预设表中第i行第j列的元素为Eij,所述N个元素中的每个元素Eij按列和行的递增顺序依次排列,所述N个频段集合对中包括的第i个频段集合和第j个频段集合的频段集合对与表中的元素Eij存在对应关系,其中,j大于i,1≤i≤K,j≤K,K、i、j均为正整数,K是所述频段组合关联的频段集合的数目。
- 根据权利要求17所述的方法,其特征在于,K个频段集合由所述频段组合中的P个频段中的任意Q个频段组成的,所述K个频段集合在所述第一预设表中按照预设顺序排列,Q为正整数。
- 根据权利要求13-18中任一项所述的方法,其特征在于,所述指示信息指示切换时间。
- 根据权利要求19所述的方法,其特征在于,所述切换时间与所述频段集合中的所述频段配置的所述传输通道的数量有关。
- 根据权利要求13、19-20中任一项所述的方法,其特征在于,所述指示信息指示所述两个频段集合之间进行传输通道切换的频段标识。
- 根据权利要求13-21中任一项所述的方法,其特征在于,所述指示信息指示所述终端设备支持或不支持在所述频段集合对的所述两个频段集合之间进行传输通道的切换。
- 根据权利要求13-22中任一项所述的方法,其特征在于,所述指示信息指示所述N个频段集合对中的M个频段集合对关联的切换时间相同,所述M个频段集合对中的每个频段集合对包括的频段相同,2≤M。
- 根据权利要求13-22中任一项所述的方法,其特征在于,所述频段集合对的切换时间与所述终端设备在所述频段集合对中的其中一个频段集合中的任一个频段与其中另一个频段集合中的任一个频段之间进行传输通道切换的时间有关。
- 根据权利要求24所述的方法,其特征在于,所述频段集合对的切换时间为所述终端设备在所述频段集合对中的其中一个频段集合中的任一个频段与其中另一个频段集合中的任一个频段之间进行传输通道切换的最大时间。
- 一种通信装置,其特征在于,包括用于执行如权利要求1至12中的任一项所述方法的模块。
- 一种通信装置,其特征在于,包括用于执行如权利要求13至25中的任一项所述方法的模块。
- 一种通信装置,其特征在于,包括处理器和接口电路,所述接口电路用于接收来自其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给其它通信装置,所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至12中任一项所述的方法。
- 一种通信装置,其特征在于,包括处理器和接口电路,所述接口电路用于接收来自其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给其它通信装置,所述处理器通过逻辑电路或执行代码指令用于实现如权利要求13至25中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,包括计算机程序指令,当所述计算机程序指令由处理器执行时,所述处理器执行如权利要求1-25中任一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括软件代码,所述软件代码用于执行如权利要求1至25中任一项所述的方法的步骤。
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