WO2021016768A1 - Mimo层数自适应调整方法及相关产品 - Google Patents

Mimo层数自适应调整方法及相关产品 Download PDF

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Publication number
WO2021016768A1
WO2021016768A1 PCT/CN2019/098033 CN2019098033W WO2021016768A1 WO 2021016768 A1 WO2021016768 A1 WO 2021016768A1 CN 2019098033 W CN2019098033 W CN 2019098033W WO 2021016768 A1 WO2021016768 A1 WO 2021016768A1
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Prior art keywords
bwp
mimo
maximum
maximum number
mimo layers
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PCT/CN2019/098033
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English (en)
French (fr)
Inventor
石聪
胡荣贻
徐伟杰
陈文洪
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Oppo广东移动通信有限公司
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Priority to CN201980090297.6A priority Critical patent/CN113348712B/zh
Priority to PCT/CN2019/098033 priority patent/WO2021016768A1/zh
Publication of WO2021016768A1 publication Critical patent/WO2021016768A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communication technology, in particular to an adaptive adjustment method of MIMO layer number and related products.
  • MIMO International: multiple-input multiple-output, Chinese: multiple-input multiple-output
  • MIMO International: multiple-input multiple-output
  • MIMO refers to the use of multiple transmitting antennas and receiving antennas at the transmitting end and receiving end respectively, so that the signal is transmitted and received through multiple antennas on the transmitting end and the receiving end , Thereby improving communication quality. It can make full use of space resources and achieve multiple transmissions and multiple receptions through multiple antennas. Without increasing spectrum resources and antenna transmission power, it can double the system channel capacity, showing obvious advantages.
  • the embodiment of the present invention provides an adaptive adjustment method for the number of MIMO layers in a multi-antenna technology and related products, with a view to adaptively adjusting the maximum MIMO layer.
  • an embodiment of the present invention provides a method for adaptively adjusting the number of MIMO layers.
  • the method is applied to a user equipment UE, and the method includes:
  • the UE receives the first maximum MIMO layer configuration of the first bandwidth part BWP and the second maximum MIMO layer configuration of the current cell issued by the network device;
  • the UE determines the maximum MIMO layer number of the first BWP according to the first maximum MIMO layer number configuration and the second maximum MIMO layer number configuration.
  • an embodiment of the present invention provides a method for adaptively adjusting the number of MIMO layers.
  • the method is applied to a network device, and the method includes:
  • the network device sends the first maximum MIMO layer configuration of the first bandwidth part BWP and the second maximum MIMO layer configuration of the current cell to the UE.
  • the first maximum MIMO layer configuration and the second maximum MIMO layer configuration are used for Determining the maximum number of MIMO layers of the first BWP at the UE.
  • an embodiment of the present invention provides a user equipment, the user equipment including: a processing unit and a communication unit, wherein:
  • the processing unit is configured to control the communication unit to receive the first multi-antenna first maximum MIMO layer configuration of the first bandwidth part BWP issued by the network device and the second maximum MIMO layer configuration of the current cell; and according to the first A maximum MIMO layer number configuration and the second maximum MIMO layer number configuration determine the maximum MIMO layer number of the first BWP.
  • an embodiment of the present invention provides a network device, the network device includes: a communication unit and a processing unit;
  • the processing unit is configured to control the communication unit to send the first maximum MIMO layer configuration of the first bandwidth part BWP and the second maximum MIMO layer configuration of the current cell to the UE, the first maximum MIMO layer configuration and the The second maximum number of MIMO layers configuration is used for the UE to determine the maximum number of MIMO layers of the first BWP.
  • an embodiment of the present invention provides a user equipment, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing steps in any method of the first aspect of the embodiments of the present invention.
  • an embodiment of the present invention provides a network device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing steps in any method in the second aspect of the embodiments of the present invention.
  • an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the implementation of the present invention For example, part or all of the steps described in any method of the first aspect or the second aspect.
  • an embodiment of the present invention provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Part or all of the steps described in any method of the first aspect or the second aspect of the invention embodiment.
  • the computer program product may be a software installation package.
  • the UE in the embodiments of the present application, can receive the max 1 MIMO of BWP#1 issued by the network equipment and the max 2 MIMO of the current cell. At this time, the UE can determine the BWP according to the actual situation. #1 is the maximum number of MIMO layers, so the embodiment of the present application can implement adaptive adjustment of the maximum number of MIMO layers based on BWP, thereby achieving the advantage of UE power saving.
  • Figure 1a is an example diagram of a network topology provided by an embodiment of the present invention.
  • FIG. 1b is an example diagram of another network topology structure provided by an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 3a is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 3b is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 3c is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 3d is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 3e is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 4a is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • 4b is a schematic flowchart of a method for adaptively adjusting the number of MIMO layers according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of the hardware structure of a user equipment provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the hardware structure of a network device provided by an embodiment of the present invention.
  • FIG. 7 is a block diagram of a functional unit composition of a user equipment provided by an embodiment of the present invention.
  • Fig. 8 is a block diagram of functional units of a network device provided by an embodiment of the present invention.
  • BWP (English: bandwidth part, Chinese: working bandwidth) is defined as a combination of multiple consecutive RBs (English: resource block, Chinese: resource block) within a carrier.
  • BWP is mainly for UE (English: user equipment, Chinese: user equipment) to better use the large carrier bandwidth.
  • UE International: user equipment, Chinese: user equipment
  • the introduction of BWP is to allocate a portion of the bandwidth within the entire large carrier to the UE for access and data transmission, and the UE only needs to perform corresponding operations within this portion of the bandwidth (ie, BWP) configured by the system.
  • a cell also called a serving cell, refers to an area covered by a base station or a part of a base station (sector antenna) in a mobile communication system. In this area, the UE can reliably communicate with the base station through a wireless channel. According to the different nature of the base station, it can be divided into Pcell (English: Primary cell, Chinese: Primary cell) and Scell (English: Secondary cell, Chinese: Secondary cell).
  • the maximum number of MIMO layers refers to the maximum number of layers allowed by the UE when applying MIMO technology.
  • the maximum number of MIMO layers is based on the service
  • For cell configuration for the downlink PDSCH (English: physical downlink control channel, Chinese: physical downlink control channel) channel, its maximum MIMO-Layers is configured in the IE of PDSCH-ServingCellConfig, and PDSCH-ServingCellConfig is configured in ServingCellConfig.
  • the maximum number of MIMO layers is configured based on the serving cell dimension. For the serving cell, it may have multiple BWPs.
  • the existing technical solutions are in the same serving cell. For example, under the Pcell, no matter which BWP is based on It is the same maximum MIMO layer number, which causes the UE to increase the energy consumption of the UE in some BWP because the maximum layer number is too high.
  • the network equipment needs to flexibly adjust the maximum number of MIMO layers of the UE, that is, based on the maximum number of MIMO layers, it needs to support BWP-specific configuration. That is, the UE can configure different maximum MIMO layers on different activated BWPs.
  • Fig. 1a for a schematic diagram of a network topology structure.
  • the network topology structure includes: UE and Pcell, and the UE is connected to the Pcell through electromagnetic waves.
  • Fig. 1b is a schematic diagram of another network topology structure.
  • the network topology structure includes: UE, Pcell, Scell, and UE is connected to Pcell and Scell respectively.
  • FIG. 2 is an adaptive adjustment method of MIMO layer number provided by an embodiment of the present invention, which is applied to the network topology as shown in FIG. 1a or FIG. 1b. As shown in FIG. 2, the method includes:
  • Step S200 the network device transmits to the UE a first device operating bandwidth (BWP # 1) of a first MIMO layers maximum (max 1 MIMO) configuration and the second maximum current cell MIMO layers (max 2 MIMO) configuration, the The first maximum MIMO layer number configuration and the second maximum MIMO layer number configuration are used by the UE to determine the maximum MIMO layer number of the first BWP.
  • BWP # 1 device operating bandwidth
  • max 2 MIMO maximum current cell MIMO layers
  • the aforementioned current cell may be Pcell or Scell.
  • Step S201 The UE receives the first maximum MIMO layer number (max 1 MIMO) configuration of the first working bandwidth (BWP#1) issued by the network device and the second maximum MIMO layer number (max 2 MIMO) configuration of the current cell .
  • the above-mentioned current cell max 2 MIMO configuration can be configured on the downlink data channel PDSCH, specifically, it can be configured in PDSCH-ServingCellConfig.
  • max 1 MIMO it can be configured in RRC (English: radio resource control, Chinese: radio resource control) signaling.
  • the initial downlink BWP can be configured in IE PDSCH-Config
  • IE PDSCH-Config is located in IE BWP-DownlinkDedicated
  • BWP-DownlinkDedicated is located in ServingCellConfig.
  • Step S202 The UE determines the maximum MIMO layer number of the first BWP according to the first maximum MIMO layer number configuration and the second maximum MIMO layer number configuration.
  • the UE determines the maximum number of MIMO layers of BWP#1 according to the max 1 MIMO and max 2 MIMO.
  • the UE can receive the max 1 MIMO of BWP#1 issued by the network equipment and the max 2 MIMO of the current cell. At this time, the UE can determine the maximum MIMO layer of BWP#1 according to the actual situation. Therefore, the embodiments of the present application can implement adaptive adjustment of the maximum number of MIMO layers based on BWP, thereby achieving the advantage of UE power saving.
  • the method for implementing step S202 may specifically include: the UE determines that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers, and the first The maximum number of MIMO layers is the maximum number of MIMO layers included in the first maximum MIMO layer number configuration, and the second maximum MIMO layer number is the maximum number of MIMO layers included in the second maximum MIMO layer number configuration.
  • the UE determines that the maximum number of MIMO layers of BWP#1 is max 1 MIMO or max 2 MIMO.
  • the first BWP is: a currently activated BWP; the currently activated BWP includes any one of the following: an initial BWP, a preset default BWP, and a normal BWP.
  • the above-mentioned BWP#1 may specifically be the currently activated BWP, and the currently activated BWP may be any BWP of the current cell.
  • the currently activated BWP may be an initial BWP, a default BWP, or a normal BWP (non-initial BWP or not default BWP).
  • the above method may further include: when the first BWP is a normal BWP, the UE obtains a handover indication, and switches the first BWP to the initial BWP or the defaultBWP according to the handover indication; The UE determines whether the initial BWP or the default BWP has the third maximum MIMO layer configuration, if the initial BWP or the default BWP has the third maximum MIMO layer configuration, the initial BWP or the default BWP has the third maximum MIMO layer configuration.
  • the maximum number of MIMO layers of the default BWP is adjusted to the third maximum number of MIMO layers, and the third maximum number of MIMO layers is the maximum number of MIMO layers included in the third maximum number of MIMO layers configuration.
  • BWP#1 is a normal BWP (that is, the BWP is not an initial BWP, nor is it a default BWP)
  • the UE obtains a handover instruction, and switches BWP#1 to the initial BWP or the default BWP according to the handover instruction; the UE determines Whether the initial BWP or default BWP has the third maximum MIMO layer configuration (corresponding to max 3 MIMO), if the initial BWP or default BWP has the third maximum MIMO layer configuration, determine the maximum MIMO layer number of the initial BWP or default BWP Adjust to max 3 MIMO.
  • the handover indication includes any one of the following: DCI (English: downlink control information, Chinese: downlink control information) indication, RRC indication, or BWP deactivation timer timeout.
  • the operation strategy can refer to the operation strategy indicated by the DCI.
  • the method further includes: when the UE initiates RACH (English: random competitive access, Chinese: random competitive access) when the first BWP, the UE determines that the first BWP has not PRACH (English: downlink random access channel, Chinese: downlink random access channel) resources are configured and the first BWP is a non-initial BWP, and the UE switches to the initial BWP.
  • RACH Random competitive access, Chinese: random competitive access
  • the UE determines that the maximum MIMO layer number of the initial BWP is the fourth maximum MIMO layer number, and the fourth maximum MIMO layer number is the fourth maximum The maximum number of MIMO layers included in the MIMO layer configuration;
  • the UE determines that the maximum MIMO layer number of the initial BWP is the second maximum MIMO layer number.
  • the UE if the UE initiates RACH on BWP#1, the UE determines that BWP#1 is not configured with PRACH and BWP#1 is a non-initial BWP, and the UE switches to the initial BWP.
  • the UE determines whether the maximum MIMO layer number of the first BWP is the second maximum MIMO layer number according to a set condition.
  • the UE can determine whether the maximum MIMO layer number of BWP#1 is max 2 MIMO according to the set conditions.
  • the method further includes: if the UE meets the set condition, the UE determines that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers, as the UE If the setting condition is not satisfied, the UE determines that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers.
  • the UE determines that the maximum number of MIMO layers of BWP#1 is max 2 MIMO; if the UE does not meet the set condition, the UE determines BWP# The maximum number of MIMO layers of 1 is max 1 MIMO.
  • the foregoing setting condition may specifically be: the first BWP is not configured with the first maximum MIMO layer number, that is, the first maximum MIMO layer number without BWP# is configured (ie, max 1 MIMO).
  • the UE may determine whether the maximum MIMO layer number of BWP#1 is max 2 MIMO according to the set conditions.
  • the UE determines that the maximum number of MIMO layers of BWP#1 is max 1 MIMO; if the set condition is satisfied, the UE determines that the maximum number of MIMO layers of BWP#1 is max 2 MIMO.
  • the UE determining that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers includes: the UE obtains an indication, and determines the number of MIMO layers according to the indication.
  • the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers.
  • the UE obtains an indication sent by the network device, and determines that the maximum MIMO layer number of BWP#1 is max 1 MIMO or max 2 MIMO according to the indication.
  • the UE acquiring the instruction includes: the UE sending auxiliary information to a network device, and receiving the instruction issued by the network device according to the auxiliary information.
  • the aforementioned assistance information may specifically be: assisting the network to determine whether the UE needs to be configured with an energy-saving mode, or whether it needs to use a BWP-based maximum MIMO layer configuration.
  • the indication includes any one of the following: a mode switching indication and a BWP switching indication.
  • the indication may be a signaling issued by a network device. This application does not limit the specific form of the foregoing signaling.
  • the foregoing signaling may carry an indication, and the indication may be a bit of the signaling, for example, when the bit When the bit is 1, it is determined that the maximum MIMO layer number of BWP#1 is max 2 MIMO. When the bit is 0, the maximum MIMO layer number of BWP#1 is determined to be max 1 MIMO. Of course, in practical applications, this bit is 0. When determining that the maximum number of MIMO layers of BWP#1 is max 1 MIMO, when the bit is 1, determine that the maximum number of MIMO layers of BWP#1 is max 2 MIMO.
  • the above indication can be determined based on the auxiliary information.
  • the specific implementation may be: the UE sends the auxiliary information to the network device.
  • the network device receives the UE's auxiliary information, it is based on the auxiliary information.
  • the instruction is generated, and the network equipment device delivers the instruction to the UE.
  • the foregoing BWP handover indication may specifically include: DCI signaling or RRC signaling.
  • the above-mentioned mode switching instruction may include: an energy-saving mode switching instruction or a non-energy-saving mode switching instruction.
  • the foregoing UE determining that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers specifically includes: if the UE is in an energy-saving mode, determining the first The maximum number of MIMO layers of a BWP is the first maximum number of MIMO layers; if the UE is in a non-energy-saving mode, it is determined that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers.
  • the UE determines that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers according to the indication, including: as described in the DCI signaling or
  • the RRC signaling includes an indication of use of the first maximum number of MIMO layers or an indication of use of the second maximum number of MIMO layers, and the maximum number of MIMO layers is determined to be the maximum number of layers matching the use indication.
  • the UE determines that the DCI signaling (or RRC signaling) includes max 1 MIMO use indication or max 2 MIMO use indication, and determines that the maximum number of MIMO layers of BWP#1 is the maximum number of layers matching the use indication .
  • the DCI signaling includes a max 1 MIMO usage indication, and it is determined that the maximum MIMO layer number of the BWP#1 is max 1 MIMO.
  • the DCI signaling includes a max 2 MIMO usage indication, and it is determined that the maximum MIMO layer number of the BWP#1 is max 2 MIMO.
  • the UE determining that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers includes: if the working mode of the UE is an energy-saving mode, so When the UE switches to initialBWP or default BWP, it is determined that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers; if the working mode of the UE is non-energy-saving mode, the UE switches to initialBWP or default BWP When determining that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers.
  • the working mode of the UE is the energy-saving mode and the UE switches to the initial BWP or the default BWP, it is determined that the maximum number of MIMO layers of BWP#1 is max 1 MIMO. If the working mode of the UE is a non-energy-saving mode, when the UE switches to the initial BWP or the default BWP, it is determined that the maximum number of MIMO layers of BWP#1 is max 2 MIMO.
  • the UE determines that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers according to the instructions, including: such as the energy-saving mode switching instruction or The non-energy-saving mode switch instruction is the switch from the energy-saving mode to the non-energy-saving mode, and the UE determines that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers; for example, the energy-saving mode switching instruction or the non-energy-saving mode switching instruction is The non-energy-saving mode is switched to the energy-saving mode, and the UE determines that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers.
  • the energy-saving mode switch instruction or the non-energy-saving mode switch instruction is the energy-saving mode switch to the non-energy-saving mode, it is determined that the maximum MIMO layer number of BWP#1 is max 2 MIMO; as the energy-saving mode switch instruction or non-energy-saving mode
  • the mode switching instruction is that the non-energy-saving mode is switched to the energy-saving mode, and the maximum MIMO layer number of BWP#1 is determined to be max 1 MIMO.
  • the foregoing energy-saving mode switching instruction or non-energy-saving mode switching instruction may be carried in the RRC reconfiguration message.
  • the configuration of the first maximum MIMO layer number is carried in an RRC reconfiguration message, that is, the above max 1 MIMO can be carried in an RRC reconfiguration message.
  • Figure 3a provides an adaptive adjustment method for the number of MIMO layers, which is applied in the network topology shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 3a is the Pcell, which is currently active
  • the BWP is BWP#1.
  • BWP#1 is the initial BWP or the default BWP, the method is shown in Figure 3a and includes the following steps:
  • Step S301a The network equipment issues the MIMO max 1 MIMO configuration of BWP#1 and the max 2 MIMO configuration of Pcell;
  • Step S302a the UE receives the MIMO max 1 MIMO configuration of BWP#1 and the max 2 MIMO configuration of Pcell;
  • step S303a the UE determines that the maximum number of MIMO layers of BWP#1 is max 1 MIMO.
  • the UE in the embodiment of this application After receiving the first maximum MIMO layer configuration of BWP#1 for the network device, the UE in the embodiment of this application directly configures the maximum MIMO layer number of BWP#1 to the first maximum MIMO layer configuration (that is, determines the maximum The number of MIMO layers is max 1 MIMO).
  • Figure 3b provides an adaptive adjustment method for the number of MIMO layers, which is applied to the network topology shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 3b is Pcell, which is currently active
  • the BWP is BWP#0, assuming that BWP#0 is the initial BWP or the default BWP, the method is shown in Figure 3a and includes the following steps:
  • Step S301b The network equipment issues the MIMO max 1 MIMO configuration of BWP#1 and the max 2 MIMO configuration of Pcell;
  • Step S302b the UE receives the MIMO max 1 MIMO configuration of BWP#1 and the max 2 MIMO configuration of Pcell;
  • Step S303b The UE switches from BWP#1 to BWP#0, and determines that the maximum number of MIMO layers of BWP#0 is max 2 MIMO.
  • the UE in the embodiment of this application directly configures the maximum MIMO layer number of the BWP#0 to the maximum MIMO layer number of the current cell by not receiving the first maximum MIMO layer configuration of the network device as BWP#0 (that is, determining the maximum MIMO layer number).
  • the number of layers is max 2 MIMO).
  • Figure 3c provides an adaptive adjustment method for the number of MIMO layers, which is applied in the network topology shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 3c is the Pcell, which is currently active
  • the BWP is BWP#1, assuming that BWP#0 is initial BWP or default BWP, BWP#1 is ordinary BWP (that is, not initial BWP or default BWP), and BWP#1 is the currently activated BWP.
  • This method is shown in Figure 3c , Including the following steps:
  • Step S301c the network equipment device issues the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S302c the UE receives the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S303c The network equipment device sends an instruction (specifically, a DCI instruction or an RRC instruction) to the UE, and the instruction includes: a handover instruction;
  • an instruction specifically, a DCI instruction or an RRC instruction
  • Step S304c The UE receives the instruction, switches BWP#1 to BWP#0 according to the instruction, and determines that the maximum MIMO layer number of BWP#0 is max 1 MIMO.
  • the UE in the embodiment of the application After receiving the first maximum MIMO layer configuration of BWP#1 by the network device, the UE in the embodiment of the application receives the instruction issued by the network device, and then switches to the corresponding BWP according to the instruction, and determines the maximum MIMO layer according to the BWP The number is max 1 MIMO.
  • Figure 3d provides an adaptive adjustment method for the number of MIMO layers, which is applied to the network topology shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 3d is Pcell, which is currently active BWP is BWP#1, assuming that BWP#0 is initial BWP or default BWP, BWP#1 is ordinary BWP (that is, not initial BWP or default BWP), and BWP#1 is the currently activated BWP.
  • the method is shown in Figure 3d , Including the following steps:
  • Step S301d the network equipment device issues the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S302d the UE receives the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S303d the UE starts the BWP timer, and when the BWP timer expires, switches BWP#1 to BWP#0;
  • Step S304d The UE determines that the maximum number of MIMO layers of BWP#0 is max 1 MIMO.
  • the UE in the embodiment of this application After the UE in the embodiment of this application receives the first maximum MIMO layer configuration for BWP#1 by the network device, it starts the timer and after the timer expires, it switches the currently active BWP#1 to the corresponding BWP#0, according to The BWP#0 determines that the maximum number of MIMO layers is max 1 MIMO.
  • Figure 3e provides an adaptive adjustment method for the number of MIMO layers, which is applied in the network topology shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 3e is Pcell, which is currently active
  • the BWP is BWP#1, assuming that BWP#0 is the initial BWP, BWP#1 is the normal BWP (that is, not the initial BWP or the default BWP), and BWP#1 is the currently activated BWP.
  • This method is shown in Figure 3e and includes the following step:
  • Step S301e the network equipment issues the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S302e the UE receives the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S303e The UE initiates RACH on BWP#1, the UE determines that BWP#1 is not configured with PRACH and BWP#1 is a non-initial BWP, and the UE switches BWP#1 to BWP#0;
  • Step S304e The UE determines that the maximum number of MIMO layers of BWP#0 is max 1 MIMO.
  • the UE determines that the maximum MIMO layer number of BWP#0 is max 2 MIMO.
  • the UE in the embodiment of the application After receiving the first maximum MIMO layer configuration of BWP#0 for the network device, the UE in the embodiment of the application determines that the switching condition of step S303e is satisfied, and then switches the currently activated BWP#1 to the corresponding BWP#0 according to The BWP#0 determines that the maximum number of MIMO layers is max 1 MIMO.
  • Figure 4a provides an adaptive adjustment method for the number of MIMO layers, which is applied to the network topology as shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 4a is Pcell, which is currently active
  • the BWP is BWP#1.
  • BWP#1 is the initial BWP or the default BWP, the method is shown in Figure 4a and includes the following steps:
  • Step S401a The network device issues the MIMO max 1 MIMO configuration of BWP#1 and the max 2 MIMO configuration of Pcell;
  • Step S402a The UE receives the MIMO max 1 MIMO configuration of BWP#1 and the max 2 MIMO configuration of Pcell;
  • Step S403a The network equipment sends an indication to the UE (the above indication can be a switching indication, such as a DCI indication or an RRC indication), the indication includes a maximum MIMO layer configuration usage indication (here it is assumed to be an indication to use the max 1 MIMO configuration);
  • the above indication can be a switching indication, such as a DCI indication or an RRC indication
  • the indication includes a maximum MIMO layer configuration usage indication (here it is assumed to be an indication to use the max 1 MIMO configuration);
  • the instruction in step S403a may also be other instructions, such as a mode switching instruction.
  • Step S404a The UE determines that the maximum MIMO layer number of BWP#1 is max 1 MIMO according to the instruction.
  • the UE in the embodiment of this application After receiving the network device's first maximum MIMO layer configuration of BWP#1, the UE in the embodiment of this application directly configures the maximum MIMO layer number of BWP#1 according to the instruction after receiving the instruction from the network device
  • the first maximum MIMO layer number configuration that is, the maximum MIMO layer number is determined to be max 1 MIMO.
  • the foregoing method may further include:
  • Step S402A The UE sends auxiliary information to the network equipment.
  • the auxiliary information is used to assist the network in determining whether the UE needs to configure an energy-saving mode, or whether it needs to use the BWP-based maximum MIMO layer configuration.
  • Figure 4b provides an adaptive adjustment method for the number of MIMO layers, which is applied to the network topology shown in Figure 1a or Figure 1b.
  • the current cell of the UE as shown in Figure 4b is the Pcell, which is currently active
  • the BWP is BWP#1, assuming that BWP#1 is the BWP in the non-energy-saving mode, BWP#0 is the initialBWP, and the BWP#0 is the BWP in the energy-saving mode.
  • the method is shown in Figure 4b and includes the following steps:
  • Step S401b The network device issues the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S402b the UE receives the MIMO max 1 MIMO configuration of BWP#0 and the max 2 MIMO configuration of Pcell;
  • Step S403b The network equipment device sends an indication to the UE (the above indication can be mode switching);
  • Step S404b The UE switches BWP#1 to BWP#0 (that is, switches from non-energy-saving mode to energy-saving mode) according to the instruction, and determines that the maximum MIMO layer number of BWP#0 is max1MIMO.
  • the UE in the embodiment of this application switches BWP#1 to BWP#0 after receiving the mode switching instruction of the network device and determines the BWP#
  • the maximum MIMO layer number of 0 is configured as the first maximum MIMO layer number configuration (that is, the maximum MIMO layer number is determined to be max 1 MIMO).
  • FIG. 5 is a schematic structural diagram of a user equipment 500 according to an embodiment of the present invention.
  • the user equipment 300 includes a processor 310, The memory 320, the communication interface 330, and one or more programs 321, wherein the one or more programs 321 are stored in the memory 320 and are configured to be executed by the processor 310, and the one or more programs 321 Include instructions for performing the following steps;
  • the instructions in the program Specifically configured to perform the following operations: determining that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers, and the third maximum number of MIMO layers is the third maximum number of MIMO layers Configure the maximum number of MIMO layers included.
  • the first BWP is: the currently activated BWP;
  • the currently activated BWP includes any one of the following: an initial BWP, a preset default BWP, and a normal BWP.
  • the program further includes instructions for performing the following operations: for example, when the first BWP is a non-initial BWP or a non-default BWP, obtain a switching instruction, and perform the first BWP according to the switching instruction. Switch a BWP to initial BWP or defaultBWP; and determine whether the initial BWP or the default BWP has the third maximum MIMO layer configuration, such as the initial BWP or the default BWP has the third maximum MIMO layer configuration , Adjust the maximum number of MIMO layers of the initial BWP or the default BWP to the third maximum number of MIMO layers, where the third maximum number of MIMO layers is the maximum number of MIMO layers included in the third maximum number of MIMO layers configuration .
  • the handover indication includes any one of the following: downlink control information DCI indication, radio resource control RRC indication, and BWP deactivation timer timeout.
  • the program further includes instructions for performing the following operations: when the first BWP initiates a random access channel RACH, it is determined that the first BWP is not configured with downlink random access channel PRACH resources And the first BWP is a non-initial BWP, and the UE switches to the initial BWP.
  • the program further includes instructions for performing the following operations: if the first BWP is the initial BWP or the default BWP, determine the maximum number of MIMO layers of the first BWP according to a set condition Whether it is the second maximum number of MIMO layers.
  • the program further includes instructions for performing the following operations: if the UE meets the set condition, determining that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers , If the UE does not meet the set condition, determining that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers;
  • the setting condition is: the first BWP is not configured with the first maximum number of MIMO layers of the first BWP.
  • the instructions in the program are specifically used to perform the following operations : Obtain an indication, and determine according to the indication that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers.
  • the instructions in the program are specifically used to perform the following operations: sending auxiliary information to a network device, and receiving the instructions issued by the network device according to the auxiliary information.
  • the indication includes any one of the following: a mode switching indication and a BWP switching indication.
  • the BWP handover indication includes: DCI signaling or RRC signaling.
  • the mode switching instruction includes an energy-saving mode switching instruction or a non-energy-saving mode switching instruction.
  • the instructions in the program are specifically used To perform the following operations: if the DCI signaling or the RRC signaling includes an indication of the use of the first maximum number of MIMO layers or an indication of the use of the second maximum number of MIMO layers, determining that the maximum number of MIMO layers is related to the use Indicates the maximum number of matching layers.
  • the instructions in the program are specifically used to perform the following operations : If the working mode of the UE is the energy-saving mode, when switching to initialBWP or default BWP, it is determined that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers; if the working mode of the UE is non In the energy-saving mode, when the UE switches to the initialBWP or the default BWP, it is determined that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers.
  • the instructions in the program are specifically used The following operations are performed: if the energy-saving mode switching instruction or the non-energy-saving mode switching instruction is switching from the energy-saving mode to the non-energy-saving mode, determining that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers; The energy-saving mode switching instruction or the non-energy-saving mode switching instruction indicates that the non-energy-saving mode is switched to the energy-saving mode, and it is determined that the maximum MIMO layer number of the first BWP is the first maximum MIMO layer number.
  • the energy-saving mode switching instruction or the non-energy-saving mode switching instruction is carried in an RRC reconfiguration message.
  • the configuration of the first maximum number of MIMO layers is carried in an RRC reconfiguration message.
  • FIG. 6 is a schematic structural diagram of a network device 600 according to an embodiment of the present invention.
  • the network device 600 includes a processor 410, a memory 420, a communication interface 430, and one or more programs. 421, wherein the one or more programs 421 are stored in the foregoing memory 420 and configured to be executed by the foregoing processor 410, and the one or more programs 421 include instructions for performing the following steps;
  • the UE determines the maximum number of MIMO layers of the first BWP.
  • the program further includes instructions for performing the following operations: sending a handover instruction to the UE.
  • the program further includes instructions for performing the following operations: receiving auxiliary information sent by the UE;
  • the processor 410 and the program further include instructions for performing the following operations: determining an instruction according to the auxiliary information, and sending the instruction to the UE.
  • the indication is any one of the following: a mode switching indication and a BWP switching indication;
  • the BWP handover indication includes: downlink control information DCI signaling or radio resource control RRC signaling.
  • FIG. 7 shows a block diagram of a possible functional unit composition of the UE involved in the foregoing embodiment.
  • the UE 700 is applied to a terminal device, and specifically includes: a processing unit 702 and a communication unit 703.
  • the processing unit 702 is used to control and manage the actions of the terminal device.
  • the processing unit 702 is used to support the terminal device to perform steps 200 and 202 in FIG. 2 and/or other processes used in the technology described herein.
  • the communication unit 703 is used to support communication between the terminal device and other devices.
  • the terminal device may also include a storage unit 701 for storing program codes and data of the terminal device.
  • the processing unit 702 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 703 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 701 may be a memory.
  • the processing unit 702 is a processor
  • the communication unit 703 is a communication interface
  • the storage unit 701 is a memory
  • the terminal device involved in the embodiment of the present application may be the user equipment shown in FIG. 7.
  • the processing unit 702 is used to perform any step performed by the terminal device in the above method embodiment, and when performing data transmission such as sending, the communication unit 703 can be optionally invoked to complete the corresponding operation .
  • the communication unit 703 is configured to receive the first multi-antenna first maximum MIMO layer configuration of the first bandwidth part BWP issued by the network device and the second maximum MIMO layer configuration of the current cell;
  • the processing unit 702 is configured to determine the maximum MIMO layer number of the first BWP according to the first maximum MIMO layer number configuration and the second maximum MIMO layer number configuration.
  • the processing unit 702 Specifically used to determine that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers, and the third maximum number of MIMO layers is included in the third maximum number of MIMO layers configuration Maximum number of MIMO layers.
  • the first BWP is: the currently activated BWP;
  • the currently activated BWP includes any one of the following: an initial BWP, a preset default BWP, and a normal BWP.
  • the processing unit 702 is specifically configured to obtain a switching instruction when the first BWP is a non-initial BWP or a non-default BWP, and switch the first BWP to initial BWP or defaultBWP; and determine whether the initial BWP or the default BWP has the third maximum MIMO layer configuration, if the initial BWP or the default BWP has the third maximum MIMO layer configuration, set the The maximum number of MIMO layers of the initial BWP or the default BWP is adjusted to the third maximum number of MIMO layers, and the third maximum number of MIMO layers is the maximum number of MIMO layers included in the third maximum number of MIMO layers configuration.
  • the handover indication includes any one of the following: downlink control information DCI indication, radio resource control RRC indication, and BWP deactivation timer timeout.
  • the processing unit 702 is specifically configured to, when the first BWP initiates a random access channel RACH, determine that the first BWP is not configured with downlink random access channel PRACH resources and the first BWP is A BWP is a non-initial BWP, and the UE switches to an initial BWP.
  • the processing unit 702 is specifically configured to determine whether the maximum number of MIMO layers of the first BWP is the maximum number of MIMO layers according to a set condition when the first BWP is the initial BWP or the default BWP. The second largest number of MIMO layers.
  • the processing unit 702 is specifically configured to determine that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers if the UE meets the set conditions, as described The UE does not meet the set condition, and determines that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers;
  • the setting condition is: the first BWP is not configured with the first maximum number of MIMO layers of the first BWP.
  • the processing unit 702 is specifically configured to obtain an indication, It is determined according to the indication that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers or the second maximum number of MIMO layers.
  • the communication unit 703 is specifically configured to send auxiliary information to a network device, and receive the instruction issued by the network device according to the auxiliary information.
  • the indication includes any one of the following: a mode switching indication and a BWP switching indication.
  • the BWP handover indication includes: DCI signaling or RRC signaling.
  • the mode switching instruction includes an energy-saving mode switching instruction or a non-energy-saving mode switching instruction.
  • the processing unit 702 specifically uses If the DCI signaling or the RRC signaling includes the indication of the use of the first maximum number of MIMO layers or the indication of the use of the second maximum number of MIMO layers, it is determined that the maximum number of MIMO layers is the maximum that matches the indication of use. Number of layers.
  • the processing unit 702 is specifically configured to: The working mode of the UE is the energy-saving mode.
  • the working mode of the UE is the energy-saving mode.
  • the UE When switching to the initialBWP or the default BWP, it is determined that the maximum number of MIMO layers of the first BWP is the first maximum number of MIMO layers; if the working mode of the UE is a non-energy-saving mode, the UE When switching to the initialBWP or the default BWP, it is determined that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers.
  • the processing unit 702 specifically uses When the energy-saving mode switch instruction or the non-energy-saving mode switch instruction is the switch from the energy-saving mode to the non-energy-saving mode, it is determined that the maximum number of MIMO layers of the first BWP is the second maximum number of MIMO layers;
  • the non-energy-saving mode switching instruction is that the non-energy-saving mode is switched to the energy-saving mode, and it is determined that the maximum MIMO layer number of the first BWP is the first maximum MIMO layer number.
  • the energy-saving mode switching instruction or the non-energy-saving mode switching instruction is carried in an RRC reconfiguration message.
  • the configuration of the first maximum number of MIMO layers is carried in an RRC reconfiguration message.
  • FIG. 8 shows a block diagram of a possible functional unit composition of the network device involved in the foregoing embodiment.
  • the network device 800 is applied to a network device, and the network device includes a processing unit 802 and a communication unit 803.
  • the processing unit 802 is used to control and manage the actions of the network device.
  • the processing unit 502 is used to support the network device to perform steps 200 and 202 in FIG. 2 and/or other processes used in the technology described herein.
  • the communication unit 803 is used to support communication between the network device and other devices.
  • the network device may also include a storage unit 801 for storing program codes and data of the terminal device.
  • the processing unit 802 may be a processor or a controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 803 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 801 may be a memory.
  • the processing unit 802 is a processor
  • the communication unit 803 is a communication interface
  • the storage unit 801 is a memory
  • the terminal device involved in the embodiment of the present application may be the network device shown in FIG. 4.
  • the processing unit 802 is configured to perform any step performed by the network device in the above method embodiment, and when performing data transmission such as receiving, it can optionally call the communication unit 803 to complete the corresponding operation. The details are described below.
  • the communication unit 803 is configured to send the first maximum MIMO layer configuration of the first bandwidth part BWP and the second maximum MIMO layer configuration of the current cell to the UE, the first maximum MIMO layer configuration and the second The maximum number of MIMO layers configuration is used for the UE to determine the maximum number of MIMO layers of the first BWP.
  • the communication unit 803 is further configured to send a handover instruction to the UE.
  • the communication unit 803 is further configured to receive auxiliary information sent by the UE;
  • the communication unit 803 is further configured to determine an indication according to the auxiliary information, and send the indication to the UE.
  • the indication is any one of the following: a mode switching indication and a BWP switching indication;
  • the BWP handover indication includes: downlink control information DCI signaling or radio resource control RRC signaling.
  • the terminal includes hardware structures and/or software modules corresponding to each function.
  • the present invention 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-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.
  • the terminal may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be realized in the form of hardware or software program module. It should be noted that the division of units in the embodiment of the present invention is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the foregoing processor may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (ASIC), and a field programmable Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication interface may include a transceiver, a transceiver circuit, and so on.
  • the embodiment of the present invention also provides a chip, wherein the chip includes a processor, which is used to call and run a computer program from the memory, so that the device installed with the chip executes the adaptive MIMO layer number in the above method embodiment. Adjust some or all of the steps described in the method.
  • the embodiment of the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the user Part or all of the steps described by the device.
  • the embodiment of the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the network in the above method embodiment Part or all of the steps described by the device.
  • An embodiment of the present invention also provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method embodiments described above Part or all of the steps described in the user equipment in the.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present invention may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in an access network device, a target network device, or a core network device.
  • the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present invention may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (for example, coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a Solid State Disk (SSD)) )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a Digital Video Disc (DVD)
  • DVD Digital Video Disc
  • SSD Solid State Disk

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Abstract

本发明实施例公开了MIMO层数自适应调整方法及相关产品，包括所述方法应用于用户设备UE，所述方法包括：UE接收网络设备下发的第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；UE依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。本发明实施例具有自适应调整最大MIMO层数的优点。

Description

MIMO层数自适应调整方法及相关产品 技术领域
本发明涉及通信技术领域，尤其涉及一种MIMO层数自适应调整方法及相关产品。
背景技术
MIMO(英文：multiple-input multiple-output，中文：多输入多输出)技术指在发射端和接收端分别使用多个发射天线和接收天线，使信号通过发射端与接收端的多个天线传送和接收，从而改善通信质量。它能充分利用空间资源，通过多个天线实现多发多收，在不增加频谱资源和天线发射功率的情况下，可以成倍的提高系统信道容量，显示出明显的优势。
发明内容
本发明的实施例提供一种多天线技术MIMO层数自适应调整方法及相关产品，以期针对MIMO最大层进行自适应调整。
第一方面，本发明实施例提供一种一种MIMO层数自适应调整方法，所述方法应用于用户设备UE，所述方法包括：
UE接收网络设备下发的第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；
UE依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
第二方面，本发明实施例提供一种MIMO层数自适应调整方法，所述方法应用于网络设备，所述方法包括：
网络设备向UE发送第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置，所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
第三方面，本发明实施例提供一种用户设备，所述用户设备包括：处理单元和通信单元，其中，
所述处理单元，用于控制所述通信单元接收网络设备下发的第一带宽部分BWP的多天线第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；以及依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
第四方面，本发明实施例提供一种网络设备，所述网络设备包括：通信单元和处理单元；
处理单元，用于控制所述通信单元向UE发送第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置，所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
第五方面，本发明实施例提供一种用户设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本发明实施例第一方面任一方法中的步骤的指令。
第六方面，本发明实施例提供一种网络设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本发明实施例第二方面任一方法中的步骤的指令。
第七方面，本发明实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本发明实施例第一方面或第二方面任一方法中所描述的部分或全部步骤。
第八方面，本发明实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本发明实施例第一方面或第二方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以看出，本发明实施例中，本申请实施例中，UE能够接收网络设备下发的BWP#1的max 1MIMO以及当前小区的max 2MIMO，此时UE可以依据实际的情况来确定BWP#1的最大MIMO层数，因此本申请实施例可以实现基于BWP的最大MIMO层数的自适应调整，进而达到UE省电的优点。
附图说明
下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1a是本发明实施例提供的一种网络拓扑结构的示例图；
图1b是本发明实施例提供的另一种网络拓扑结构的示例图；
图2是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图3a是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图3b是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图3c是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图3d是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图3e是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图4a是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图4b是本发明实施例提供的一种MIMO层数自适应调整方法的流程示意图；
图5是本发明实施例提供的一种用户设备的硬件结构示意图；
图6是本发明实施例提供的一种网络设备的硬件结构示意图；
图7是本发明实施例提供的一种用户设备的功能单元组成框图；
图8是本发明实施例提供的一种网络设备的功能单元组成框图。
具体实施方式
下面将结合附图对本发明实施例中的技术方案进行描述。
BWP(英文：bandwidth part，中文：工作带宽)定义为一个载波内连续的多个RB(英文：resource block，中文：资源块)的组合。BWP主要还为了UE(英文：user equipment，中文：用户设备)可以更好的使用大的载波带宽。对于一个大的载波带宽，比如100MHz，一个UE需要使用的带宽往往有限，如果让UE实时进行全带宽的检测和维护，UE的能耗将带来极大挑战。BWP的引入就是在整个大的载波内划出部分带宽给UE进行接入和数据传输，UE只需在系统配置的这部分带宽(即BWP)内进行相应的操作。
小区，也称服务小区，是指在移动通信系统中，其中的一个基站或基站的一部分(扇形天线)所覆盖的区域，在这个区域内UE可以通过无线信道可靠地与基站进行通信。依据基站的性质不同，可以分为Pcell(英文：Primary cell，中文：主小区)、Scell(英文：Secondary cell，中文：辅小区)。
最大MIMO层数指的是UE在应用MIMO技术时允许的层数的最大值，目前，在现有R15的NR(英文：new radio，中文：新空口)标准中，最大MIMO层数是基于服务小区配置的， 对于下行PDSCH(英文：physical downlink control channel，中文：物理下行控制信道)信道，其最大MIMO层数(maxMIMO-Layers)配置在PDSCH-ServingCellConfig这个IE中，而PDSCH-ServingCellConfig又配置在ServingCellConfig中。但是此最大MIMO层数基于服务小区为维度进行配置，对于服务小区来说，其可能具有多个BWP，现有的技术方案在同个服务小区下，例如在Pcell下无论那个BWP其基于的都是同一个最大MIMO层数，这样导致UE在一些BWP因为最大层数太高，增加了UE的能耗。
为了使得UE达到省电效果，网络设备需要灵活的调整UE的最大MIMO层数，即基于最大MIMO层数需要支持BWP专属的配置。即UE在不同的激活BWP上，能够配置不同的最大MIMO层数。
参阅图1a为一种网络拓扑结构示意图，如图1a所示，该网络拓扑结构包括：UE和Pcell，UE通过电磁波与Pcell连接。如图1b所示为另一种网络拓扑结构示意图，如图1b所示，该网络拓扑结构包括：UE、Pcell、Scell，UE与Pcell以及Scell分别连接。
请参阅图2，图2是本发明实施例提供的一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，该方法如图2所示，包括：
步骤S200、网络设备设备向UE发送第一工作带宽(BWP#1)的第一最大MIMO层数(max 1MIMO)配置以及当前小区的第二最大MIMO层数(max 2MIMO)配置，所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
其中，上述当前小区可以是Pcell或Scell。
步骤S201、所述UE接收网络设备下发的第一工作带宽(BWP#1)的第一最大MIMO层数(max 1MIMO)配置以及当前小区的第二最大MIMO层数(max 2MIMO)配置。
上述当前小区max 2MIMO配置可以在下行数据信道PDSCH上，具体的，可以配置在PDSCH-ServingCellConfig中。对于max 1MIMO可以配置在RRC(英文：radio resource control，中文：无线资源控制)信令。例如，对于初始下行BWP，可以配置于IE PDSCH-Config，IE PDSCH-Config位于IE BWP-DownlinkDedicated中，而BWP-DownlinkDedicated位于ServingCellConfig中。
步骤S202、所述UE依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
具体实现中，所述UE依据该max 1MIMO以及max 2MIMO确定BWP#1的最大MIMO层数。
可以看出，本申请实施例中，UE能够接收网络设备下发的BWP#1的max 1MIMO以及当前小区的max 2MIMO，此时UE可以依据实际的情况来确定BWP#1的最大MIMO层数，因此本申请实施例可以实现基于BWP的最大MIMO层数的自适应调整，进而达到UE省电的优点。
在一个可能的示例中，上述步骤S202的实现方法具体可以包括：所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，所述第一最大MIMO层数为所述第一最大MIMO层数配置所包含的最大MIMO层数，所述第二最大MIMO层数为所述第二最大MIMO层数配置所包含的最大MIMO层数。
具体实现中，所述UE确定BWP#1的最大MIMO层数为max 1MIMO或max 2MIMO。
在一个可能的示例中，所述第一BWP为：当前激活的BWP；所述当前激活的BWP包括以下任意一种：初始initial BWP、预设default BWP以及普通BWP。
其中，上述BWP#1具体可以为当前激活的BWP，该当前激活的BWP可以为当前小区的任意BWP，例如，该当前激活的BWP可以为initial BWP、default BWP或普通BWP(非initial BWP也非default BWP)。
在一个可能的示例中，上述方法还可以包括：如所述第一BWP为普通BWP时，所述UE 获取切换指示，依据所述切换指示将所述第一BWP切换至initial BWP或defaultBWP；所述UE确定所述initial BWP或所述default BWP是否具有第三最大MIMO层数配置，如所述initial BWP或所述default BWP具有所述第三最大MIMO层数配置，将所述initial BWP或所述default BWP的最大MIMO层数调整为第三最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
具体实现中，如BWP#1为普通BWP(即该BWP不是initial BWP，也不是default BWP)，所述UE获取切换指示，依据该切换指示将BWP#l切换至initial BWP或default BWP；UE确定该initial BWP或default BWP是否具有第三最大MIMO层数配置(对应max 3MIMO)，如该initial BWP或default BWP具有第三最大MIMO层数配置，则确定initial BWP或default BWP的最大MIMO层数调整至max 3MIMO。
在一个可能的示例中，所述切换指示包括以下任意一种：DCI(英文：downlink control information，中文：下行控制信息)指示、RRC指示或BWP去激活计时器超时。
例如，这里假设当前BWP为BWP#1，initial BWP为BWP#0，当UE接收到DCI指示时，将当前激活BWP从BWP#1切换至BWP#0，UE确定BWP#0是否具有第三最大MIMO层数配置(对应max 3MIMO)，如具有第三最大MIMO层数配置，则UE确定BWP#0的最大MIMO层数为max 3MIMO。当切换指示为RRC指示或BWP去激活计时器超时的操作策略可以参见DCI指示的操作策略。
在一个可能的示例中，所述方法还包括：所述UE在所述第一BWP发起RACH(英文：random competitive access，中文：随机竞争接入)时，所述UE确定所述第一BWP未配置PRACH(英文：downlink random access channel，中文：下行随机接入信道)资源且所述第一BWP为非initial BWP，所述UE切换到initial BWP。
如所述initial BWP具有第四最大MIMO层数配置，则所述UE确定所述initial BWP的最大MIMO层数为第四最大MIMO层数，所述第四最大MIMO层数为所述第四最大MIMO层数配置所包含的最大MIMO层数；
如所述initial BWP不具有所述第四最大MIMO层数配置，则所述UE确定所述initial BWP的最大MIMO层数为所述第二最大MIMO层数。
具体实现中，如UE在BWP#1发起RACH时，UE确定BWP#1未配置PRACH且BWP#1为非initial BWP，UE切换到initial BWP。
在一个可能的示例中，如所述第一BWP为initial BWP或default BWP时，所述UE依据设定条件确定所述第一BWP的最大MIMO层数是否为所述第二最大MIMO层数。
具体实现中，如BWP#1为initia1BWP或default BWP时，UE可以依据设定条件确定BWP#1的最大MIMO层数是否为max 2MIMO。
在本可能的示例中，所述方法还包括：如所述UE满足所述设定条件，所述UE确定所述第一BWP的最大MIMO层数为第二最大MIMO层数，如所述UE不满足所述设定条件，所述UE确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数。
具体实现中，如所述UE满足该设定条件，则所述UE确定BWP#1的最大MIMO层数为max 2MIMO，如所述UE不满足该设定条件，则所述UE确定BWP#1的最大MIMO层数为max 1MIMO。
其中，上述设定条件具体可以为：所述第一BWP未配置所述第一最大MIMO层数，即未配置BWP#的第一最大MIMO层数(即max 1MIMO)。
在一个可能的示例中，如BWP#1为普通BWP时，UE可以依据设定条件确定BWP#1的最大MIMO层数是否为max 2MIMO。
具体的，如UE不满足该设定条件，UE确定BWP#1的最大MIMO层数为max 1MIMO；如 满足该设定条件，UE确定BWP#1的最大MIMO层数为max 2MIMO。
在一个可能的示例中，所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：所述UE获取指示，依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数。
具体实现中，所述UE获取所述网络设备发送的指示，依据该指示确定BWP#1的最大MIMO层数为max 1MIMO或max 2MIMO。
在本可能的示例中，所述UE获取指示，包括：所述UE向网络设备发送辅助信息，接收所述网络设备依据所述辅助信息下发的所述指示。
上述辅助信息(英文：assistance information)具体可以为：协助网络判断该UE是否需要配置节能模式，或者是否需要使用基于BWP的最大MIMO层数配置。
在一个可能的示例中，所述指示包括以下任意一种：模式切换指示以及BWP切换指示。
其中，该指示可以为网络设备下发的一个信令，本申请并不限制上述信令的具体形式，上述信令可以携带一个指示，该指示可以为信令的一个比特位，例如当该比特位为1时确定BWP#1的最大MIMO层数为max 2MIMO，当该比特位为0时确定BWP#1的最大MIMO层数为max 1MIMO，当然在实际应用中，该比特位为0时确定BWP#1的最大MIMO层数为max 1MIMO，当该比特位为1时确定BWP#1的最大MIMO层数为max 2MIMO。
在本可能的示例中，上述指示可以依据辅助信息来确定，具体的实现方式可以为：UE向网络设备发送辅助信息，相对应的，网络设备设备接收到UE的辅助信息后，依据该辅助信息生成指示，网络设备设备将该指示下发给UE。
在一个可能的示例中，上述BWP切换指示具体可以包括：DCI信令或RRC信令。上述模式切换指示可以包括：节能模式切换指示或非节能模式切换指示。
在一个可能的示例中，上述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，具体包括：如所述UE为节能模式，确定所述第一BWP的最大MIMO层数为第一最大MIMO层数；如所述UE为非节能模式，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
在一个可能的示例中，所述UE依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：如所述DCI信令或所述RRC信令包括第一最大MIMO层数的使用指示或所述第二最大MIMO层数的使用指示，确定最大MIMO层数为与所述使用指示匹配的最大层数。
具体实现中，UE确定该DCI信令(也可以为RRC信令)包括max 1MIMO使用指示或max 2MIMO使用指示，确定BWP#1的最大MIMO层数为与该使用指示匹配的最大层数。
例如，该DCI信令包括max 1MIMO使用指示，确定该BWP#1的最大MIMO层数为max 1MIMO。该DCI信令包括max 2MIMO使用指示，确定该BWP#1的最大MIMO层数为max 2MIMO。
在一个可能的示例中，所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：如所述UE的工作模式为节能模式，所述UE切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；如所述UE的工作模式为非节能模式，UE切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
具体实现中，如所述UE的工作模式为节能模式，UE切换到initialBWP或default BWP时，确定BWP#1的最大MIMO层数为max 1MIMO。如所述UE的工作模式为非节能模式，UE切换到initial BWP或default BWP时，确定BWP#1的最大MIMO层数为max 2MIMO。
在一个可能的示例中，所述UE依据所述指示确定所述第一BWP的最大MIMO层数 为第一最大MIMO层数或第二最大MIMO层数，包括：如所述节能模式切换指示或非节能模式切换指示为节能模式切换到非节能模式，所述UE确定所述第一BWP的最大MIMO层数为第二最大MIMO层数；如所述节能模式切换指示或非节能模式切换指示为非节能模式切换到节能模式，所述UE确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数。
具体实现中，如所述节能模式切换指示或非节能模式切换指示为节能模式切换到非节能模式，确定BWP#1的最大MIMO层数为max 2MIMO；如所述节能模式切换指示或非节能模式切换指示为非节能模式切换到节能模式，确定BWP#1的最大MIMO层数为max 1MIMO。
在一个可能的示例中，上述节能模式切换指示或非节能模式切换指示可以携带在RRC重配置消息中。
在一个可能的示例中，所述第一最大MIMO层数配置携带在RRC重配置消息中，即上述max 1MIMO可以携带在RRC重配置消息中。
参阅图3a，图3a提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图3a所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#1，假设BWP#1为initial BWP或default BWP，该方法如图3a所示，包括如下步骤：
步骤S301a、网络设备设备下发BWP#1的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S302a、UE接收BWP#1的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S303a、UE确定BWP#1的最大MIMO层数为max 1MIMO。
本申请实施例的UE通过接收到网络设备为BWP#1的第一最大MIMO层数配置以后，直接将该BWP#1的最大MIMO层数配置成该第一最大MIMO层数配置(即确定最大MIMO层数为max 1MIMO)。
参阅图3b，图3b提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图3b所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#0，假设BWP#0为initial BWP或default BWP，该方法如图3a所示，包括如下步骤：
步骤S301b、网络设备设备下发BWP#1的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S302b、UE接收BWP#1的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S303b、UE从BWP#1切换至BWP#0，确定BWP#0的最大MIMO层数为max 2MIMO。
本申请实施例的UE通过未接收到网络设备为BWP#0的第一最大MIMO层数配置，直接将该BWP#0的最大MIMO层数配置成当前小区的最大MIMO层数(即确定最大MIMO层数为max 2MIMO)。
参阅图3c，图3c提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图3c所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#1，假设BWP#0为initial BWP或default BWP，BWP#1为普通BWP(即非initial BWP或default BWP)且BWP#1为当前激活的BWP，该方法如图3c所示，包括如下步骤：
步骤S301c、网络设备设备下发BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S302c、UE接收BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S303c、网络设备设备向UE下发指示(具体可以为DCI指示或RRC指示)，该指示包括：切换指示；
步骤S304c、UE接收到该指示，依据该指示将BWP#1切换至BWP#0，确定BWP#0的最 大MIMO层数为max 1MIMO。
本申请实施例的UE通过接收到网络设备为BWP#1的第一最大MIMO层数配置以后，接收网络设备下发的指示，然后依据该指示切换至对应的BWP，依据该BWP确定最大MIMO层数为max 1MIMO。
参阅图3d，图3d提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图3d所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#1，假设BWP#0为initial BWP或default BWP，BWP#1为普通BWP(即非initial BWP或default BWP)且BWP#1为当前激活的BWP，该方法如图3d所示，包括如下步骤：
步骤S301d、网络设备设备下发BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S302d、UE接收BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S303d、UE启动BWP计时器，当BWP计时器超时，将BWP#1切换至BWP#0；
步骤S304d、UE确定BWP#0的最大MIMO层数为max 1MIMO。
本申请实施例的UE通过接收到网络设备为BWP#1的第一最大MIMO层数配置以后，启动计时器且计时器超时后，将当前激活的BWP#1切换至对应的BWP#0，依据该BWP#0确定最大MIMO层数为max 1MIMO。
参阅图3e，图3e提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图3e所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#1，假设BWP#0为initial BWP，BWP#1为普通BWP(即非initial BWP或default BWP)且BWP#1为当前激活的BWP，该方法如图3e所示，包括如下步骤：
步骤S301e、网络设备设备下发BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S302e、UE接收BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S303e、UE在BWP#1发起RACH，UE确定BWP#1未配置PRACH且BWP#1为非initial BWP，UE将BWP#1切换至BWP#0；
步骤S304e、UE确定BWP#0的最大MIMO层数为max 1MIMO。
需要说明的是，如UE的BWP#0不具有第一最大MIMO层数配置，UE确定BWP#0的最大MIMO层数为max 2MIMO。
本申请实施例的UE通过接收到网络设备为BWP#0的第一最大MIMO层数配置以后，确定满足步骤S303e的切换条件后，将当前激活的BWP#1切换至对应的BWP#0，依据该BWP#0确定最大MIMO层数为max 1MIMO。
参阅图4a，图4a提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图4a所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#1，假设BWP#1为initial BWP或default BWP，该方法如图4a所示，包括如下步骤：
步骤S401a、网络设备设备下发BWP#1的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S402a、UE接收BWP#1的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S403a、网络设备设备向UE发送指示(上述指示可以切换指示，例如DCI指示或RRC指示)，该指示包括最大MIMO层数配置的使用指示(这里假设为使用max 1MIMO配置的指示)；
上述步骤S403a中的指示还可以为其他的指示，例如模式切换指示。
步骤S404a、UE依据该指示确定BWP#1的最大MIMO层数为max 1MIMO。
本申请实施例的UE通过接收到网络设备为BWP#1的第一最大MIMO层数配置以后，接 收到网络设备设备的指示后，依据该指示直接将该BWP#1的最大MIMO层数配置成该第一最大MIMO层数配置(即确定最大MIMO层数为max 1MIMO)。
在一种可选的示例中，上述方法在步骤S403a之前还可以包括：
步骤S402A、UE向网络设备设备发送辅助信息，该辅助信息用于协助网络判断该UE是否需要配置节能模式，或者是否需要使用基于BWP的最大MIMO层数配置。
参阅图4b，图4b提供了一种MIMO层数自适应调整方法，应用于如图1a或如图1b所示的网络拓扑中，如图4b所示的UE的当前小区为Pcell，其当前激活的BWP为BWP#1，假设BWP#1非节能模式下的BWP，BWP#0为initialBWP，该BWP#0为节能模式下的BWP，该方法如图4b所示，包括如下步骤：
步骤S401b、网络设备设备下发BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S402b、UE接收BWP#0的MIMO max 1MIMO配置以及Pcell的max 2MIMO配置；
步骤S403b、网络设备设备向UE发送指示(上述指示可以模式切换)；
步骤S404b、UE依据该指示将BWP#1切换至BWP#0(即从非节能模式切换至节能模式)，确定BWP#0的最大MIMO层数为max1MIMO。
本申请实施例的UE通过接收到网络设备为BWP#0的第一最大MIMO层数配置以后，接收到网络设备设备的模式切换指示后，将BWP#1切换至BWP#0，确定该BWP#0的最大MIMO层数配置成该第一最大MIMO层数配置(即确定最大MIMO层数为max 1MIMO)。
与上述图2所示的实施例一致的，请参阅图5，图5是本发明实施例提供的一种用户设备500的结构示意图，如图所示，所述用户设备300包括处理器310、存储器320、通信接口330以及一个或多个程序321，其中，所述一个或多个程序321被存储在上述存储器320中，并且被配置由上述处理器310执行，所述一个或多个程序321包括用于执行以下步骤的指令；
接收网络设备下发的第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
在一种可选示例中，在所述依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数方面，所述程序中的指令具体用于执行以下操作：确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
在一种可选示例中，所述第一BWP为：当前激活的BWP；
所述当前激活的BWP包括以下任意一种：初始initial BWP、预设default BWP以及普通BWP。
在一种可选示例中，所述程序还包括用于执行以下操作的指令：如所述第一BWP为非initial BWP或非default BWP时，获取切换指示，依据所述切换指示将所述第一BWP切换至initial BWP或defaultBWP；以及确定所述initial BWP或所述default BWP是否具有第三最大MIMO层数配置，如所述initial BWP或所述default BWP具有所述第三最大MIMO层数配置，将所述initial BWP或所述default BWP的最大MIMO层数调整为第三最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
在一种可选示例中，所述切换指示包括以下任意一种：下行控制信息DCI指示、无线资源控制RRC指示以及BWP去激活计时器超时。
在一种可选示例中，所述程序还包括用于执行以下操作的指令：在所述第一BWP发起 随机接入信道RACH时，确定所述第一BWP未配置下行随机接入信道PRACH资源且所述第一BWP为非initial BWP，所述UE切换到initial BWP。
在一种可选示例中，所述程序还包括用于执行以下操作的指令：如所述第一BWP为initial BWP或default BWP时，依据设定条件确定所述第一BWP的最大MIMO层数是否为所述第二最大MIMO层数。
在一种可选示例中，所述程序还包括用于执行以下操作的指令：如所述UE满足所述设定条件，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数，如所述UE不满足所述设定条件，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；
所述设定条件为：所述第一BWP未配置所述第一BWP的第一最大MIMO层数。
在一种可选示例中，在所述确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述程序中的指令具体用于执行以下操作：获取指示，依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数。
在一种可选示例中，在获取指示方面，所述程序中的指令具体用于执行以下操作：向网络设备发送辅助信息，接收所述网络设备依据所述辅助信息下发的所述指示。
在一种可选示例中，所述指示包括以下任意一种：模式切换指示以及BWP切换指示。
在一种可选示例中，所述BWP切换指示包括：DCI信令或RRC信令。
在一种可选示例中，所述模式切换指示包括：节能模式切换指示或非节能模式切换指示。
在一种可选示例中，在所述依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述程序中的指令具体用于执行以下操作：如所述DCI信令或所述RRC信令包括第一最大MIMO层数的使用指示或所述第二最大MIMO层数的使用指示，确定最大MIMO层数为与所述使用指示匹配的最大层数。
在一种可选示例中，在所述确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述程序中的指令具体用于执行以下操作：如所述UE的工作模式为节能模式，切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；如所述UE的工作模式为非节能模式，UE切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
在一种可选示例中，在所述依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述程序中的指令具体用于执行以下操作：如所述节能模式切换指示或非节能模式切换指示为节能模式切换到非节能模式，确定所述第一BWP的最大MIMO层数为所述第二最大MIMO层数；如所述节能模式切换指示或非节能模式切换指示为非节能模式切换到节能模式，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数。
在一种可选示例中，所述节能模式切换指示或非节能模式切换指示携带在RRC重配置消息中。
在一种可选示例中，所述第一最大MIMO层数配置携带在RRC重配置消息中。
请参阅图6，图6是本发明实施例提供的一种网络设备600的结构示意图，如图所示，所述网络设备600包括处理器410、存储器420、通信接口430以及一个或多个程序421，其中，所述一个或多个程序421被存储在上述存储器420中，并且被配置由上述处理器410执行，所述一个或多个程序421包括用于执行以下步骤的指令；
向UE发送第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大 MIMO层数配置，所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
在一种可选的示例中，所述程序还包括用于执行以下操作的指令：向UE发送切换指示。
在一种可选的示例中，所述程序还包括用于执行以下操作的指令：接收UE发送辅助信息；
所述处理器410，所述程序还包括用于执行以下操作的指令：依据所述辅助信息确定指示，向UE发送所述指示。
在一种可选的示例中，所述指示为以下任意一种：模式切换指示以及BWP切换指示；
所述BWP切换指示包括：下行控制信息DCI信令或无线资源控制RRC信令。
在采用集成的单元的情况下，图7示出了上述实施例中所涉及的UE的一种可能的功能单元组成框图。UE700应用于终端设备，具体包括：处理单元702和通信单元703。处理单元702用于对终端设备的动作进行控制管理，例如，处理单元702用于支持终端设备执行图2中的步骤200、202和/或用于本文所描述的技术的其它过程。通信单元703用于支持终端设备与其他设备的通信。终端设备还可以包括存储单元701，用于存储终端设备的程序代码和数据。
其中，处理单元702可以是处理器或控制器，例如可以是中央处理器(Central Processing Unit，CPU)，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)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元703可以是通信接口、收发器、收发电路等，存储单元701可以是存储器。当处理单元702为处理器，通信单元703为通信接口，存储单元701为存储器时，本申请实施例所涉及的终端设备可以为图7所示的用户设备。
具体实现时，所述处理单元702用于执行如上述方法实施例中由终端设备执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用所述通信单元703来完成相应操作。
下面进行详细说明。
所述通信单元703，用于接收网络设备下发的第一带宽部分BWP的多天线第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；
所述处理单元702，用于依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
在一种可选示例中，在所述依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数方面，所述处理单元702，具体用于确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
在一种可选示例中，所述第一BWP为：当前激活的BWP；
所述当前激活的BWP包括以下任意一种：初始initial BWP、预设default BWP以及普通BWP。
在一种可选示例中，所述处理单元702，具体用于如所述第一BWP为非initial BWP或非default BWP时，获取切换指示，依据所述切换指示将所述第一BWP切换至initial BWP或defaultBWP；以及确定所述initial BWP或所述default BWP是否具有第三最大MIMO层数配置，如所述initial BWP或所述default BWP具有所述第三最大MIMO层数配置，将所 述initial BWP或所述default BWP的最大MIMO层数调整为第三最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
在一种可选示例中，所述切换指示包括以下任意一种：下行控制信息DCI指示、无线资源控制RRC指示以及BWP去激活计时器超时。
在一种可选示例中，所述处理单元702，具体用于在所述第一BWP发起随机接入信道RACH时，确定所述第一BWP未配置下行随机接入信道PRACH资源且所述第一BWP为非initial BWP，所述UE切换到initial BWP。
在一种可选示例中，所述处理单元702，具体用于如所述第一BWP为initial BWP或default BWP时，依据设定条件确定所述第一BWP的最大MIMO层数是否为所述第二最大MIMO层数。
在一种可选示例中，所述处理单元702，具体用于如所述UE满足所述设定条件，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数，如所述UE不满足所述设定条件，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；
所述设定条件为：所述第一BWP未配置所述第一BWP的第一最大MIMO层数。
在一种可选示例中，在所述确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述处理单元702，具体用于获取指示，依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数。
在一种可选示例中，在获取指示方面，所述通信单元703，具体用于向网络设备发送辅助信息，接收所述网络设备依据所述辅助信息下发的所述指示。
在一种可选示例中，所述指示包括以下任意一种：模式切换指示以及BWP切换指示。
在一种可选示例中，所述BWP切换指示包括：DCI信令或RRC信令。
在一种可选示例中，所述模式切换指示包括：节能模式切换指示或非节能模式切换指示。
在一种可选示例中，在所述依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述处理单元702，具体用于如所述DCI信令或所述RRC信令包括第一最大MIMO层数的使用指示或所述第二最大MIMO层数的使用指示，确定最大MIMO层数为与所述使用指示匹配的最大层数。
在一种可选示例中，在所述确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述处理单元702，具体用于如所述UE的工作模式为节能模式，切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；如所述UE的工作模式为非节能模式，UE切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
在一种可选示例中，在所述依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数方面，所述处理单元702，具体用于如所述节能模式切换指示或非节能模式切换指示为节能模式切换到非节能模式，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数；如所述节能模式切换指示或非节能模式切换指示为非节能模式切换到节能模式，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数。
在一种可选示例中，所述节能模式切换指示或非节能模式切换指示携带在RRC重配置消息中。
在一种可选示例中，所述第一最大MIMO层数配置携带在RRC重配置消息中。
在采用集成的单元的情况下，图8示出了上述实施例中所涉及的网络设备的一种可能的功能单元组成框图。网络设备800应用于网络设备，该网络设备包括：处理单元802和 通信单元803。处理单元802用于对网络设备的动作进行控制管理，例如，处理单元502用于支持网络设备执行图2中的步骤200、202和/或用于本文所描述的技术的其它过程。通信单元803用于支持网络设备与其他设备的通信。网络设备还可以包括存储单元801，用于存储终端设备的程序代码和数据。
其中，处理单元802可以是处理器或控制器，例如可以是中央处理器(Central Processing Unit，CPU)，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)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元803可以是通信接口、收发器、收发电路等，存储单元801可以是存储器。当处理单元802为处理器，通信单元803为通信接口，存储单元801为存储器时，本申请实施例所涉及的终端设备可以为图4所示的网络设备。
其中，所述处理单元802用于执行如上述方法实施例中由网络设备执行的任一步骤，且在执行诸如接收等数据传输时，可选择的调用所述通信单元803来完成相应操作。下面进行详细说明。
所述通信单元803，用于向UE发送第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置，所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
在一种可选的示例中，所述通信单元803：还用于向UE发送切换指示。
在一种可选的示例中，所述通信单元803：还用于接收UE发送辅助信息；
在一种可选的示例中，所述通信单元803：还用于依据所述辅助信息确定指示，向UE发送所述指示。
在一种可选的示例中，所述指示为以下任意一种：模式切换指示以及BWP切换指示；
所述BWP切换指示包括：下行控制信息DCI信令或无线资源控制RRC信令。
上述主要从各个网元之间交互的角度对本发明实施例的方案进行了介绍。可以理解的是，终端为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。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和设计约束条件。专业技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
本发明实施例可以根据上述方法示例对终端进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本发明实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
其中，上述处理器可以是中央处理器(Central Processing Unit，CPU)，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)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。 通信接口可以包括收发器、收发电路等。
本发明实施例还提供了一种芯片，其中，该芯片包括处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如上述方法实施例中MIMO层数自适应调整方法所描述的部分或全部步骤。
本发明实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中用户设备所描述的部分或全部步骤。
本发明实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中网络设备所描述的部分或全部步骤。
本发明实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法实施例中用户设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本发明实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。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(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(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该存储介质读取信息，且可向该存储介质写入信息。当然，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，该ASIC可以位于接入网设备、目标网络设备或核心网设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备、目标网络设备或核心网设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本发明实施例所描述的功能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。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机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，所述计算机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(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)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。所述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包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
以上所述的具体实施方式，对本发明实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明实施例的具体实施方式而已，并不用于限定本发明实施例的保护范围，凡在本发明实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本发明实施例的保护范围之内。

Claims (47)

  1. 一种多输入多输出MIMO层数自适应调整方法，其特征在于，包括：
    所述UE接收网络设备下发的第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；
    所述UE依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
  2. 根据权利要求1所述的方法，其特征在于，所述UE依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数，包括：
    所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，所述第一最大MIMO层数为所述第一最大MIMO层数配置所包含的最大MIMO层数，所述第二最大MIMO层数为所述第二最大MIMO层数配置所包含的最大MIMO层数。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一BWP为：当前激活的BWP；
    所述当前激活的BWP包括以下任意一种：初始initial BWP、预设default BWP以及普通BWP。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述方法还包括：
    如所述第一BWP为普通BWP时，所述UE获取切换指示，依据所述切换指示将所述第一BWP切换至initial BWP或defaultBWP；
    所述UE确定所述initial BWP或所述default BWP是否具有第三最大MIMO层数配置，如所述initial BWP或所述default BWP具有所述第三最大MIMO层数配置，将所述initial BWP或所述default BWP的最大MIMO层数调整为第三最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
  5. 根据权利要求4所述的方法，其特征在于，所述切换指示包括以下任意一种：下行控制信息DCI指示、无线资源控制RRC指示以及BWP去激活计时器超时。
  6. 根据权利要求1-3任一项所述的方法，其特征在于，所述方法还包括：
    所述UE在所述第一BWP发起随机接入信道RACH时，所述UE确定所述第一BWP未配置下行随机接入信道PRACH资源且所述第一BWP为非initial BWP，所述UE切换到initial BWP；
    如所述initial BWP具有第四最大MIMO层数配置，则所述UE确定所述initial BWP的最大MIMO层数为第四最大MIMO层数，所述第四最大MIMO层数为所述第四最大MIMO层数配置所包含的最大MIMO层数；
    如所述initial BWP不具有所述第四最大MIMO层数配置，则所述UE确定所述initial BWP的最大MIMO层数为所述第二最大MIMO层数。
  7. 根据权利要求1-3任一项所述的方法，其特征在于，所述方法还包括：
    如所述第一BWP为initial BWP或default BWP时，所述UE依据设定条件确定所述第一BWP的最大MIMO层数是否为所述第二最大MIMO层数。
  8. 根据权要求7所述的方法，其特征在于，所述方法还包括：
    如所述UE满足所述设定条件，所述UE确定所述第一BWP的最大MIMO层数为第二最大MIMO层数，如所述UE不满足所述设定条件，所述UE确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；
    所述设定条件为：所述第一BWP未配置所述第一最大MIMO层数。
  9. 根据权利要求2所述的方法，其特征在于，所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：
    所述UE获取指示，依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数。
  10. 根据权利要求9所述的方法，其特征在于，所述UE获取指示，包括：
    所述UE向网络设备发送辅助信息，接收所述网络设备依据所述辅助信息下发的所述指示。
  11. 根据权利要求9或10所述的方法，其特征在于，所述指示包括以下任意一种：模式切换指示以及BWP切换指示。
  12. 根据权利要求11所述的方法，其特征在于，所述BWP切换指示包括：DCI信令或RRC信令。
  13. 根据权利要求11所述的方法，其特征在于，所述模式切换指示包括：节能模式切换指示或非节能模式切换指示。
  14. 根据权利要求12所述的方法，其特征在于，所述UE依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：
    如所述DCI信令或所述RRC信令包括第一最大MIMO层数的使用指示或所述第二最大MIMO层数的使用指示，确定最大MIMO层数为与所述使用指示匹配的最大层数。
  15. 根据权利要求13所述的方法，其特征在于，所述UE依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：
    如所述节能模式切换指示或非节能模式切换指示为节能模式切换到非节能模式，所述UE确定所述第一BWP的最大MIMO层数为第二最大MIMO层数；
    如所述节能模式切换指示或非节能模式切换指示为非节能模式切换到节能模式，所述UE确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数。
  16. 根据权利要求15所述的方法，其特征在于，所述节能模式切换指示或非节能模式切换指示携带在RRC重配置消息中。
  17. 根据权利要求2所述的方法，其特征在于，所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：
    如所述UE为节能模式，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；
    如所述UE为非节能模式，确定所述第一BWP的最大MIMO层数为所述第二最大MIMO层数。
  18. 根据权利要求2所述的方法，其特征在于，所述UE确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数，包括：
    如所述UE的工作模式为节能模式，所述UE切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；
    如所述UE的工作模式为非节能模式，UE切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
  19. 根据权利要求1-18任意一项所述的方法，其特征在于，所述第一最大MIMO层数配置携带在RRC重配置消息中。
  20. 一种用户设备，其特征在于，所述用户设备包括：处理单元和通信单元，其中，
    所述通信单元，用于接收网络设备下发的第一带宽部分BWP的多天线第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置；
    所述处理单元，用于依据所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置确定所述第一BWP的最大MIMO层数。
  21. 根据权利要求20所述的用户设备，其特征在于，
    所述处理单元，具体用于确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数。
  22. 根据权利要求20或21所述的用户设备，其特征在于，
    所述处理单元，具体用于所述第一BWP为：当前激活的BWP；
    所述当前激活的BWP包括以下任意一种：初始initial BWP、预设default BWP以及普通BWP。
  23. 根据权利要求20-22任一项所述的用户设备，其特征在于，
    所述通信单元，用于如所述第一BWP为普通BWP时，获取切换指示；
    所处处理单元，具体用于依据所述切换指示将所述第一BWP切换至initial BWP或defaultBWP；确定所述initial BWP或所述default BWP是否具有第三最大MIMO层数配置，如所述initial BWP或所述default BWP具有所述第三最大MIMO层数配置，将所述initial BWP或所述default BWP的最大MIMO层数调整为第三最大MIMO层数，所述第三最大MIMO层数为所述第三最大MIMO层数配置所包含的最大MIMO层数。
  24. 根据权利要求23所述的用户设备，其特征在于，所述切换指示包括以下任意一种：下行控制信息DCI指示、无线资源控制RRC指示以及BWP去激活计时器超时。
  25. 根据权利要求20-22任一项所述的用户设备，其特征在于，
    所述处理单元，用于在所述第一BWP发起随机接入信道RACH时，确定所述第一BWP未配置下行随机接入信道PRACH资源且所述第一BWP为非initial BWP，所述UE切换到initial BWP；如所述initial BWP具有第四最大MIMO层数配置，确定所述initial BWP的最大MIMO层数为第四最大MIMO层数，所述第四最大MIMO层数为所述第四最大MIMO层数配置所包含的最大MIMO层数；如所述initial BWP不具有所述第四最大MIMO层数配置，则确定所述initial BWP的最大MIMO层数为所述第二最大MIMO层数。
  26. 根据权利要求20-22任一项所述的用户设备，其特征在于，
    所述处理单元，用于如所述第一BWP为initial BWP或default BWP时，依据设定条件确定所述第一BWP的最大MIMO层数是否为所述第二最大MIMO层数。
  27. 根据权要求26所述的用户设备，其特征在于，
    所述处理单元，用于如满足所述设定条件，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数，如不满足所述设定条件，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；
    所述设定条件为：所述第一BWP未配置所述第一BWP的第一最大MIMO层数。
  28. 根据权利要求21所述的用户设备，其特征在于，
    所述通信单元，用于获取指示；
    所述处理单元，具体用于依据所述指示确定所述第一BWP的最大MIMO层数为第一最大MIMO层数或第二最大MIMO层数。
  29. 根据权利要求28所述的用户设备，其特征在于，
    所述通信单元，还用于向网络设备发送辅助信息，接收所述网络设备依据所述辅助信息下发的所述指示。
  30. 根据权利要求28或29所述的用户设备，其特征在于，所述指示包括以下任意一种：模式切换指示以及BWP切换指示。
  31. 根据权利要求29所述的用户设备，其特征在于，所述BWP切换指示包括：DCI信令或RRC信令。
  32. 根据权利要求28所述的用户设备，其特征在于，所述模式切换指示包括：节能模式切换指示或非节能模式切换指示。
  33. 根据权利要求30所述的用户设备，其特征在于，
    所述处理单元，具体用于如所述DCI信令或所述RRC信令包括第一最大MIMO层数的使用指示或所述第二最大MIMO层数的使用指示，确定最大MIMO层数为与所述使用指示匹配的最大层数。
  34. 根据权利要求32所述的用户设备，其特征在于，
    所述处理单元，具体用于如所述节能模式切换指示或非节能模式切换指示为节能模式切换到非节能模式，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数；如所述节能模式切换指示或非节能模式切换指示为非节能模式切换到节能模式，所述确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数。
  35. 根据权利要求34所述的用户设备，其特征在于，所述节能模式切换指示或非节能模式切换指示携带在RRC重配置消息中。
  36. 根据权利要求21所述的用户设备，其特征在于，
    所述处理单元，具体用于如为节能模式，确定所述第一BWP的最大MIMO层数为第一最大MIMO层数；如为非节能模式，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
  37. 根据权利要求21所述的用户设备，其特征在于，
    所述处理单元，具体用于如所述UE的工作模式为节能模式，切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为所述第一最大MIMO层数；如所述UE的工作模式为非节能模式，切换到initialBWP或default BWP时，确定所述第一BWP的最大MIMO层数为第二最大MIMO层数。
  38. 根据权利要求20-37任意一项所述的用户设备，其特征在于，所述第一最大MIMO层数配置携带在RRC重配置消息中。
  39. 一种MIMO层数自适应调整方法，其特征在于，所述方法应用于网络设备，所述方法包括：
    所述网络设备向UE发送第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置，所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
  40. 根据权利要求39所述的方法，其特征在于，所述方法还包括：
    所述网络设备向UE发送切换指示。
  41. 根据权利要求39所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收UE发送辅助信息，依据所述辅助信息确定指示，向UE发送所述指示。
  42. 根据权利要求41所述的方法，其特征在于，所述指示为以下任意一种：模式切换指示以及BWP切换指示；
    所述BWP切换指示包括：下行控制信息DCI信令或无线资源控制RRC信令。
  43. 一种网络设备，其特征在于，所述网络设备包括：通信单元；
    通信单元，用于向UE发送第一带宽部分BWP的第一最大MIMO层数配置以及当前小区的第二最大MIMO层数配置
    所述第一最大MIMO层数配置以及所述第二最大MIMO层数配置用于所述UE确定所述第一BWP的最大MIMO层数。
  44. 一种用户设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-19任一项所述的方法中的步骤的指令。
  45. 一种网络设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求39-42任一项所述的方法中的步骤的指令。
  46. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-19或39-42中任一项所述的方法。
  47. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1-19或39-42中任一项所述的方法。
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