Downlink resource allocation method, electronic device, storage medium and program product

Abstract

The invention provides a downlink resource allocation method, electronic equipment, a storage medium and a program product, relates to the technical field of communication, and is used for improving downlink transmission performance of a cell. The method comprises the following steps: under the condition that a first cell is in a long term evolution (LTE) state, distributing data symbols on a downlink subframe to a physical downlink shared channel (PDSCH) of the LTE; the data symbols are symbols used for transmitting user plane data in the subframe; and under the condition that the first cell is in a new air interface NR state, distributing a data symbol on a downlink subframe to a PDSCH (Physical Downlink Shared Channel) of the NR, and configuring the data symbol to be in a multimedia broadcast multicast service single frequency network MBSFN (Multimedia Broadcast Multicast Service Single Frequency Network) empty subframe format on an LTE (Long Term Evolution) side.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to a downlink resource allocation method, an electronic device, a storage medium and a program product. BACKGROUND

[0002] In the process of upgrading and evolving from a fourth generation mobile communication network (4G) to a fifth generation mobile communication network (5G), in order to guarantee the smoothness of the upgrading and evolution, a dynamic spectrum sharing (DSS) technology is introduced, and the DSS technology supports that a single carrier frequency resource can be dynamically shared and used between the 4G and the 5G.

[0003] In the DDS technology, a base station needs to continuously send a cell-specific reference signal (CRS) to ensure that a long term evolution (LTE) terminal can correctly perform channel estimation and measurement. However, the fixed and periodic CRS occupation will limit the available resources of a new radio (NR) of the 5G, affect the transmission efficiency of the NR, and thus reduce the downlink transmission performance of a cell. SUMMARY

[0004] The present application provides a downlink resource allocation method, an electronic device, a storage medium and a program product, and is used for improving the downlink transmission performance of a cell.

[0005] In a first aspect, the present application provides a downlink resource allocation method, comprising: in a case that a first cell is in an LTE state, allocating data symbols on a downlink subframe to a physical downlink shared channel (PDSCH) of the LTE; the data symbol is a symbol in the subframe used for transmitting user plane data; in a case that the first cell is in an NR state, allocating the data symbols on the downlink subframe to a PDSCH of the NR, and configuring the data symbols as a multimedia broadcast multicast service over a single frequency network (MBSFN) null subframe format on an LTE side.

[0006] The technical scheme provided by the application brings at least the following beneficial effects: the downlink resource allocation method provided by the application can allocate data symbols on a downlink subframe to a PDSCH of LTE when the first cell is in an LTE state, and allocate data symbols on the downlink subframe to a PDSCH of NR and configure the data symbols as an MBSFN null subframe format on the LTE side when the first cell is in an NR state. It should be understood that the data part in the MBSFN null subframe does not contain CRS, so the LTE on the downlink subframe only transmits CRS on the symbols corresponding to a physical downlink control channel (PDCCH), without transmitting CRS on data symbols. In this way, when the first cell is in the LTE state or the NR state, the NR only needs to puncture on the symbols corresponding to the PDCCH of the LTE, thereby reducing the influence of the CRS on the NR and improving the downlink transmission performance of the cell.

[0007] In a possible implementation, the method further includes: determining that the first cell is in the LTE state when the system message to be sent by the first cell is an LTE system message; and determining that the first cell is in the NR state when the system message to be sent by the first cell is an NR system message.

[0008] In another possible implementation, the method further includes: determining the first proportion when the first cell sends service data, the first proportion being used to indicate a time allocation proportion of the LTE state and the NR state of the first cell in a preset time period; and performing time allocation on the LTE state and the NR state of the first cell in the preset time period based on the first proportion.

[0009] In another possible implementation, determining the first proportion includes: determining a second proportion, the second proportion being a proportion between LTE traffic and NR traffic of the first cell in the preset time period; and determining the first proportion based on the second proportion.

[0010] In another possible implementation, when the first cell is in an LTE and NR coexistence state, the data symbols on the downlink subframe are allocated to the PDSCH of LTE and the PDSCH of NR.

[0011] In another possible implementation, when the system message to be sent by the first cell is an LTE system message and an NR system message, it is determined that the first cell is in an LTE and NR coexistence state.

[0012] In another possible implementation, in the downlink subframe, the subcarrier frequency corresponding to the data symbol allocated to the PDSCH of the LTE is greater than the subcarrier frequency corresponding to the data symbol allocated to the PDSCH of the NR; or, in the downlink subframe, the subcarrier frequency corresponding to the data symbol allocated to the PDSCH of the LTE is less than the subcarrier frequency corresponding to the data symbol allocated to the PDSCH of the NR.

[0013] In another possible implementation, the method further includes: time aligning the NR system message period and the LTE system message period of the first cell and the second cell; the second cell uses the same DSS carrier as the first cell and is located in the baseband unit pool group of the first cell.

[0014] In another possible implementation, the working state of the first cell includes an LTE state and an NR state; the working state of the second cell includes an LTE state and an NR state; and the proportion of downlink subframes in which the first cell and the second cell are in the same working state within a preset time period is greater than a first threshold.

[0015] In a second aspect, the present application provides a downlink resource allocation apparatus, including: a processing module; the processing module is configured to: in a case where the first cell is in an LTE state, allocate data symbols on a downlink subframe to a PDSCH of the LTE; the data symbol is a symbol in the subframe used for transmitting user plane data; and in a case where the first cell is in an NR state, allocate data symbols on the downlink subframe to a PDSCH of the NR, and configure the data symbols as an MBSFN null subframe format on the LTE side.

[0016] In a possible implementation, the processing module is further configured to: in a case where the system message to be sent by the first cell is an LTE system message, determine that the first cell is in an LTE state; and in a case where the system message to be sent by the first cell is an NR system message, determine that the first cell is in an NR state.

[0017] In another possible implementation, the processing module is further configured to: in a case where the first cell sends service data, determine a first proportion; the first proportion is used to indicate the time allocation proportion of the LTE state and the NR state of the first cell within a preset time period; and based on the first proportion, time allocate the LTE state and the NR state of the first cell within the preset time period.

[0018] In another possible implementation, the processing module is specifically configured to: determine a second proportion; the second proportion is the proportion between the LTE service amount and the NR service amount of the first cell within a preset time period; and based on the second proportion, determine the first proportion.

[0019] In a possible implementation, the processing module is further configured to, in a case where the first cell is in the LTE and NR coexistence state, allocate data symbols on a downlink subframe to a PDSCH of the LTE and a PDSCH of the NR.

[0020] In a possible implementation, the processing module is further configured to, in a case where the system message to be sent by the first cell is an LTE system message and an NR system message, determine that the first cell is in the LTE and NR coexistence state.

[0021] In a possible implementation, in the downlink subframe, the data symbols allocated to the PDSCH of the LTE correspond to subcarrier frequencies greater than the data symbols allocated to the PDSCH of the NR; or, in the downlink subframe, the data symbols allocated to the PDSCH of the LTE correspond to subcarrier frequencies less than the data symbols allocated to the PDSCH of the NR.

[0022] In a possible implementation, the processing module is further configured to perform time alignment on the NR system message period and the LTE system message period of the first cell and a second cell; the second cell uses the same DSS carrier as the first cell and is located in a baseband unit pool group of the first cell.

[0023] In a possible implementation, the working state of the first cell includes an LTE state and an NR state; the working state of the second cell includes the LTE state and the NR state; and a proportion of downlink subframes in which the first cell and the second cell are in the same working state in a preset time period is greater than a first threshold.

[0024] In a third aspect, the present application provides an electronic device, including a processor and a memory; the memory stores instructions executable by the processor; and the processor is configured to execute the instructions, so that the electronic device implements the method in the first aspect.

[0025] In a fourth aspect, the present application provides a computer-readable storage medium, including computer software instructions; when the computer software instructions run in an electronic device, the electronic device implements the method in the first aspect.

[0026] In a fifth aspect, the present application provides a computer program product, including a computer program; when the computer program runs in an electronic device, the electronic device implements the method in the first aspect.

[0027] The advantages of the second aspect to the fifth aspect are as described in the first aspect, and will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1A schematic diagram of LTE and NR physical channel / signal configuration under the same physical resource block is provided for the present application;

[0029] Figure 2 A schematic diagram of dynamic scheduling of LTE resources and NR resources under the DSS scenario is provided for the present application;

[0030] Figure 3 A schematic diagram of interference on 5G NR under the DSS scenario is provided for the present application;

[0031] Figure 4 A schematic diagram of NR carrier and LTE carrier with carrier overlap is provided for the present application;

[0032] Figure 5 A schematic diagram of an application environment of a downlink resource allocation method is provided for the present application;

[0033] Figure 6 A schematic diagram of a flow of a downlink resource allocation method is provided for the present application;

[0034] Figure 7 A schematic diagram of allocation of downlink resources is provided for the present application;

[0035] Figure 8 Another schematic diagram of allocation of downlink resources is provided for the present application;

[0036] Figure 9 Still another schematic diagram of allocation of downlink resources is provided for the present application;

[0037] Figure 10 Still another schematic diagram of allocation of downlink resources is provided for the present application;

[0038] Figure 11 A schematic diagram of a flow of another downlink resource allocation method is provided for the present application;

[0039] Figure 12 A schematic diagram of a flow of still another downlink resource allocation method is provided for the present application;

[0040] Figure 13 A schematic diagram of a flow of still another downlink resource allocation method is provided for the present application;

[0041] Figure 14 A schematic diagram of a composition of a downlink resource allocation apparatus is provided for the present application;

[0042] Figure 15 A schematic diagram of a structure of an electronic device is provided for the present application. DETAILED DESCRIPTION

[0043] The downlink resource allocation method provided by the present application will be described in detail below with reference to the accompanying drawings.

[0044] The term "and / or" in this document merely describes an association relationship of associated objects, and indicates that three relationships can exist, for example, A and / or B can represent three cases of existence of A alone, existence of A and B simultaneously, and existence of B alone.

[0045] The terms "first" and "second" and the like in the description of the present application and the accompanying drawings are used to distinguish different objects or different processing of the same object, and are not used to describe a specific order of the objects.

[0046] In addition, the terms "include" and "have" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include other steps or units not listed or can optionally include other steps or units inherent to the process, method, product or device.

[0047] It should be noted that in the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0048] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by using "first", "second" and the like. Those skilled in the art can understand that "first", "second" and the like are not limited to the number and execution order.

[0049] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0050] In the process of upgrading from 4G to 5G, in order to ensure the smoothness of the upgrade, the DSS technology is introduced, which supports that a single carrier frequency resource can be dynamically shared between 4G and 5G. The main technical principles of DSS include: configuring the time-frequency resources of LTE and NR at the same frequency band and the same carrier (or part of the frequency resources overlap), on the frequency overlapping resource blocks (RB), the key channels (such as control channels) of LTE and NR are configured by staggering the time-frequency resources, and independent deployment on the same carrier is realized. When there is a time-frequency resource conflict between LTE and NR, a puncturing mechanism is used to ensure the normal transmission of the higher priority party.

[0051] Figure 1 The configuration diagram of LTE and NR physical channels / signals in the same physical resource block (PRB) is shown in the following figure. Figure 1 In the figure, the left side is the channel / signal configuration of LTE on the time-frequency resources of one subframe, and the right side is the channel / signal configuration of NR on the time-frequency resources of one subframe. One subframe includes 14 orthogonal frequency division multiplexing (OFDM) symbols, and each PRB is composed of 12 consecutive subcarriers. Each small square in the figure represents a combination of an OFDM symbol and a subcarrier.

[0052] As shown in the following figure, Figure 1 The LTE and NR physical channels and physical signals include LTE PDCCH, NR PDCCH, and PDSCH. The physical signals include LTE CRS.

[0053] In one subframe, the LTE PDCCH occupies the first symbol, and the NR PDCCH occupies the second and third symbols. At the same time, in one subframe, the LTE CRS is transmitted on the 1st, 5th, 8th, and 12th OFDM symbols (symbols marked as 0, 4, 7, and 11) of each subframe, and is transmitted every 2 subcarriers on these symbols.

[0054] On the NR side, the time-frequency domain resources occupied by the LTE PDCCH and the LTE CRS need to be punctured, that is, NR data is not transmitted on the time-frequency domain resources occupied by the LTE PDCCH and the LTE CRS, so as to avoid interference to LTE.

[0055] In the subframe, the PDSCH is shared by LTE and NR, and can be dynamically scheduled according to the business needs. For example, Figure 2 The following figure shows an example of dynamic scheduling of LTE resources and NR resources in a DSS scenario. As shown in the following figure,Figure 2 As shown, the horizontal axis is the time axis, the unit is milliseconds (ms), each bar represents a time slot (slot), the length of each time slot is 1ms; the vertical axis represents the allocation of resources.

[0056] DSS effectively meets the needs of 4G and 5G users for simultaneous access and use of communication services, while also facilitating a smooth transition from 4G to 5G networks. Given 5G's superior spectrum efficiency, networks typically prioritize 5G access over 4G. As 5G terminal penetration steadily increases, 5G resource utilization is expected to increase accordingly. It is expected that once the majority of terminal devices are 5G-capable, the proportion of frequency resources allocated to 5G under the DSS mechanism will approach 100%, maximizing the utilization of existing spectrum resources and driving the continued advancement and development of the mobile communications industry.

[0057] However, in existing DDS technologies, the base station needs to continuously send CRS to ensure that LTE terminals can correctly perform channel estimation and measurement. This fixed and periodic CRS occupancy will limit the available resources of 5G NR.

[0058] like Figure 3 Figure 2 shows the interference experienced by 5G NR in a DSS scenario. Figure 3 The upper middle part represents the resource grid on the NR side, including the NR side of the current cell, and the lower middle part represents the resource grid on the LTE side, including the LTE side of the current cell and the LTE side of neighboring cell 1 and neighboring cell 2.

[0059] It can be seen that when transmitting the PDSCH channel of NR in this cell, puncturing is required for LTE CRS, which reduces the performance of NR. In addition, the LTE CRS signal of the neighboring cell will also cause continuous interference to the PDSCH channel of this NR cell, further reducing the PDSCH performance of NR.

[0060] In the test data, when the network load was 10%, the average downlink throughput of the NR cell using DSS technology was reduced by about 28% compared to the pure NR configuration (that is, only NR was configured in the entire area and all carriers, and 4G / 5G DSS was not enabled). When the network load increased to 30%, the average downlink throughput of the NR cell in the DSS configuration decreased by about 42% compared to the pure NR configuration. This shows that as the network load increases, the impact of DSS on the downlink performance of the NR cell becomes more significant.

[0061] In response to the above technical problems, the present application provides a downlink resource allocation method, the idea of ​​which is: when the first cell is in the LTE state, the data symbols on the downlink subframe are allocated to the PDSCH of LTE; when the first cell is in the NR state, the data symbols on the downlink subframe are allocated to the PDSCH of NR, and the data symbols are configured as MBSFN empty subframe format on the LTE side. It should be understood that the data part in the MBSFN empty subframe does not contain CRS, so on the downlink subframe, LTE only sends CRS on the symbols corresponding to the PDCCH, and there is no need to send CRS on the data symbols. In this way, when the first cell is in the LTE state or the NR state, NR only needs to puncture the symbols corresponding to the LTE PDCCH, thereby reducing the impact of CRS on NR and improving the downlink transmission performance of the cell.

[0062] The embodiments provided in this application are described in detail below with reference to the accompanying drawings.

[0063] The technical solutions provided in the embodiments of the present application can be applied to various mobile communication networks, for example, 5G NR mobile communication networks, time division duplex long term evolution (TD-LTE) mobile communication networks, frequency division duplex long term evolution (FDD-LTE) mobile communication networks, future mobile communication networks or multiple communication convergence systems, etc., and the embodiments of the present application are not limited to this.

[0064] It should be noted that for cells on a carrier that support both 4G and 5G access, DSS can be used for configuration. All PRB resources on that carrier can be configured for NR and LTE sharing, or only some PRB resources can be configured for 4G / 5G sharing.

[0065] For example, Figure 4 This is a diagram showing the overlap between NR carriers and LTE carriers. Figure 4 As shown, NR and LTE carriers can overlap in multiple ways, including: complete overlap of NR carrier and LTE carrier, complete inclusion of LTE carrier in NR carrier or complete inclusion of NR carrier in LTE carrier, partial overlap of NR carrier and LTE carrier, that is, NR carrier and LTE carrier resources are staggered and partially overlap. Figure 4 In the case of carrier inclusion, only the LTE carrier is completely included in the NR carrier as an example, but it should be understood that the carrier inclusion also includes the NR carrier being completely included in the LTE carrier, and this application does not limit this.

[0066] It should be understood that the downlink resource allocation method provided in the present application is applicable to all scenarios where frequency resources overlap, and the specific form of carrier overlap is not limited.

[0067] The downlink resource allocation method provided in the present application can be applied to an application environment as shown in FIG. 1. Figure 5 As shown in FIG. 1, the application environment includes a network management device 110, a first cell 120, and a second cell 130. Figure 5 The first cell 120 is provided with communication services by a first base station 121, and the area covered by the first base station 121 is the first cell 120. The second cell 130 is provided with communication services by a second base station 131, and the area covered by the second base station 131 is the second cell 130.

[0068] In some embodiments, the network management device 110 can be a stand-alone hardware device, or a virtual management platform realized based on software, or integrated on the first base station 121, the second base station 131, or other base stations in communication connection with the first base station 121 and the second base station 131. The specific device form of the network management device 110 is not limited in the embodiments of the present application.

[0069] For example, the network management device 110 can be an operation and maintenance center (OMC), a simple network management protocol (SNMP) agent, a log server, etc., or a software-defined networking (SDN) controller, an element management system (EMS), a network management system (NMS), a network functions virtualization (NFV) platform, etc., or other computers, servers, processors, processing chips, etc. with management capabilities.

[0070] In some embodiments, the network management device 110 can manage the first base station 121 and the second base station 131.

[0071] For example, the network management device 110 is in communication connection with the first base station 121 and the second base station 131, and manages the first base station 121 and the second base station 131 by sending configuration information to the first base station 121 and the second base station 131.

[0072] In some embodiments, the first cell 120 and the second cell 130 can provide wireless access services to multiple terminals. Specifically, a base station provides a service coverage area (i.e., a cell). Terminals entering the first cell 120 can communicate with the first base station 121 via wireless signals to receive the wireless access services provided by the first base station 121. Terminals entering the second cell 130 can communicate with the second base station 131 via wireless signals to receive the wireless access services provided by the second base station 131.

[0073] In some embodiments, the second cell 130 and the first cell 120 use the same DSS carrier and are located in the baseband unit (BBU) pool group of the first cell 120. It should be understood that the second cell 130 and the first cell 120 use the same DSS carrier, indicating that the second cell 130 and the first cell 120 can both support the DSS standard and share the same spectrum resources to provide services for 4G LTE and 5G NR users.

[0074] In some embodiments, the first base station 121 and the second base station 131 can be multi-standard base stations that simultaneously support 4G LTE and 5G NR, or base stations in future communication systems, etc. The first base station 121 and the second base station 131 can include various multi-standard radio frequency units (RU), macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RIS), routers, wireless fidelity (WIFI) devices and other network side devices.

[0075] In this application, the terminal can be a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of this application do not limit the application scenarios. The terminal can also be called user, UE, access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent or UE device, etc. The embodiments of this application do not limit this.

[0076] In some embodiments, the network management device 110 can allocate data symbols on the downlink subframe to the PDSCH of LTE in the case that the first cell 120 is in the LTE state; the data symbols are symbols in the subframe for transmitting user plane data; allocate data symbols on the downlink subframe to the PDSCH of NR in the case that the first cell 120 is in the NR state, and configure the data symbols as MBSFN null subframe format on the LTE side.

[0077] In some embodiments, the network management device 110 can time-align the NR system message period and the LTE system message period of the first cell 120 and the second cell 130.

[0078] It should be noted that, Figure 5 The environment diagram shown in the figure is only an exemplary implementation environment, Figure 5 The number of devices included in the figure, and the name of each device is not limited, and in addition to Figure 5 The communication system can also include other devices, such as core network devices.

[0079] It should be understood that the system architecture described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of the system architecture, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0080] Referring to Figure 6 , a flowchart of a downlink resource allocation method provided by the embodiments of the present application, the downlink resource allocation method provided by the present application is applied to a network management device, which can be the network management device 110 in the above Figure 5 . As shown in Figure 6 , the downlink resource allocation method provided by the present application includes the following S201-S202.

[0081] S201, in the case that the first cell is in an LTE state, data symbols on a downlink subframe are allocated to a PDSCH of the LTE.

[0082] , wherein the data symbols are symbols in the subframe for transmitting user plane data.

[0083] In some embodiments, after the data symbols on the downlink subframe are allocated to the PDSCH of the LTE, the subframe can be referred to as a full LTE subframe.

[0084] It should be understood that the downlink subframe is composed of a plurality of OFDM symbols (which can also be directly referred to as symbols), and the plurality of OFDM symbols are arranged according to a specific structure in the time domain. The plurality of symbols in the downlink subframe include symbols for transmitting control plane information and symbols for transmitting user plane data. In order to improve the reliability of the transmission of the communication system, the symbol positions of the control channels such as PDCCH of the LTE and the NR in the subframe are fixed.

[0085] The first cell is in the LTE state, indicating that the cell mainly serves the LTE users under the current configuration. Since the symbol positions of the control channels of the LTE and the NR are fixed, the data symbols on the downlink subframe can be allocated to the PDSCH of the LTE, and the data symbols on the downlink subframe do not need to carry the PDSCH of the NR, so that the LTE CRS does not affect the PDSCH of the NR, and the NR side only needs to perform puncturing on the symbol positions occupied by the control channels of the LTE, thereby reducing the influence of the LTE on the downlink transmission performance of the NR.

[0086] In some embodiments, in the case of allocating data symbols on downlink subframes to PDSCH of LTE, PDSCH, physical broadcast channel (PBCH), primary synchronization signal (PSS), secondary synchronization signal (SSS) of the LTE side are configured according to the third generation partnership project (3GPP) standard, and the NR side does not allocate PDSCH resources in this scenario, i.e., not used for transmitting user data.

[0087] In some embodiments, the control channels of LTE and NR occupy the first three symbols in a subframe. Among them, the control channels of LTE include LTE PDCCH, LTE physical control format indicator channel (PCFICH), LTE physical hybrid automatic repeat request indicator channel (PHICH), etc., and the control channels of NR include NR PDCCH.

[0088] For example, in the case of using a dual-transmit antenna configuration (2 transmit antennas, 2T) in LTE, the LTE PDCCH, LTE PCFICH, LTE PHICH, etc. channels occupy the first symbol, and the LTE CRS signal is also continuously transmitted; the NR PDCCH occupies the second and third symbols, at which time the first symbol needs to be punctured by the NR side.

[0089] Alternatively, the LTE PDCCH, LTE PCFICH, LTE PHICH, etc. channels occupy the first and second symbols, and the LTE CRS signal is also continuously transmitted; the NR PDCCH occupies the third symbol, at which time the first and second symbols need to be punctured by the NR side.

[0090] In the case of using a four-transmit antenna configuration (4 transmit antennas, 4T) in LTE, the LTE PDCCH, LTE PCFICH, LTE PHICH, etc. channels occupy the first and second symbols, and the LTE CRS signal is also continuously transmitted; the NR PDCCH occupies the third symbol, at which time the first and second symbols need to be punctured by the NR side.

[0091] In some embodiments, in the case that the control channel of LTE occupies the first symbol, the NR PDCCH occupies the second and third symbols, and the first cell is in the LTE state, the allocation of the downlink resources in the downlink subframe is as shown in FIG. 2. Figure 7

[0092] It should be noted that the PRB is a basic frequency resource unit for data transmission, and each PRB is composed of 12 continuous subcarriers. Figure 7 The downlink resources in the downlink subframe are shown in the form of small squares, and each small square represents a combination of a symbol and a subcarrier.

[0093] As shown in FIG. 2, on the LTE side, the LTE PDCCH occupies the first symbol, the LTE CRS is transmitted on the 1st, 5th, 8th and 12th symbols (symbols marked as 0, 4, 7 and 11) of each subframe, and is transmitted every 2 subcarriers on these symbols, and the downlink resources included in the remaining data symbols are allocated to the PDSCH of LTE. The downlink resources included in the data symbols can also have other names, such as service resources, service transmission resources, etc. Figure 7

[0094] On the NR side, the NR PDCCH occupies the second and third symbols, and the remaining data symbols (the fourth symbol to the fourteenth symbol) on the NR side are not allocated, and the NR needs to be punctured on the first symbol of the subframe to ensure the transmission quality of the LTE PDCCH.

[0095] It should be understood that the control channel of LTE can include the LTE PDCCH, the LTE PCFICH and the LTE PHICH, and the control channel of LTE is not limited in the present application. Figure 7 In the description, only the case that the control channel of LTE includes the LTE PDCCH is illustrated.

[0096] In some embodiments, in the case that the control channel of LTE occupies the first and second symbols, the NR PDCCH occupies the third symbol, and the first cell is in the LTE state, the allocation of the downlink resources in the downlink subframe is as shown in FIG. 3. Figure 8

[0097] In the description, only the case that the control channel of LTE includes the LTE PDCCH is illustrated. Figure 8 The downlink resources in the downlink subframe are shown in the form of small squares, and each small square represents a combination of a symbol and a subcarrier.

[0098] As shown in FIG. 3, on the LTE side, the LTE PDCCH occupies the first and second symbols, the LTE CRS is transmitted on the 1st, 5th, 8th and 12th symbols (symbols marked as 0, 4, 7 and 11) of each subframe, and is transmitted every 2 subcarriers on these symbols, and the downlink resources included in the remaining data symbols are allocated to the PDSCH of LTE. The downlink resources included in the data symbols can also have other names, such as service resources, service transmission resources, etc. Figure 8 ​​​As shown, in the LTE side, the LTE PDCCH occupies the first symbol and the second symbol, while the LTE CRS is transmitted on the 1st, 5th, 8th and 12th symbols (symbols labeled as 0, 4, 7 and 11) of each subframe, and is transmitted every 2 subcarriers on these symbols, and the remaining data symbols include the downlink resources allocated to the PDSCH of the LTE.

[0099] In the NR side, the NR PDCCH occupies the third symbol, and the remaining data symbols (the fourth symbol to the fourteenth symbol) in the NR side are not allocated, and the NR needs to be punctured on the first symbol and the second symbol of the subframe to guarantee the transmission quality of the LTE PDCCH.

[0100] It should be understood that the control channel of the LTE can include the LTE PDCCH, the LTE PCFICH and the LTE PHICH, and the present application does not limit the control channel of the LTE. Figure 8 The present application only takes the LTE PDCCH as an example.

[0101] It can be seen that, in the case that the first cell is in the LTE state, the data symbols on the downlink subframe are allocated to the PDSCH of the LTE, so that the NR side of the first cell is not used for transmitting user data, and thus the NR side only needs to be punctured at the position of the LTE control channel, which reduces the complexity of the processing of the NR side and improves the downlink transmission performance of the first cell.

[0102] S202, in the case that the first cell is in the NR state, the data symbols on the downlink subframe are allocated to the PDSCH of the NR, and the data symbols are configured as the MBSFN null subframe format in the LTE side.

[0103] The data symbol is a symbol used for transmitting user plane data in the subframe.

[0104] In some embodiments, after the data symbols on the downlink subframe are allocated to the PDSCH of the NR, the subframe can be referred to as a full NR subframe.

[0105] The first cell in the NR state indicates that the cell mainly serves the NR user under the current configuration. Since the symbol positions of the control channels of the LTE and the NR are fixed, the data symbols on the downlink subframe can be allocated to the PDSCH of the NR, the data symbols on the downlink subframe do not need to carry the PDCCH of the LTE, and the data symbols are configured as the MBSFN null subframe format in the LTE side.

[0106] It should be understood that when the data symbols are configured as the MBSFN null subframe format, the LTE CRS will not be transmitted in the data part of the MBSFN subframe due to the structure and design target of the MBSFN subframe, so as to reduce unnecessary overhead.

[0107] Therefore, the LTE CRS is only transmitted on the symbol bit corresponding to the LTE PDCCH, and does not affect the PDSCH of the NR, and the NR side only needs to puncture on the symbol position occupied by the control channel of the LTE, thereby reducing the influence of the LTE on the performance of the NR downlink transmission.

[0108] In some embodiments, in the case of allocating data symbols on the downlink subframe to the PDSCH of the NR, the NR side configures all PRBs of the subframe for the PDSCH channel and the SSB resource as needed, and the LTE side does not allocate PDSCH resources in this scenario, that is, the LTE side does not transmit user data.

[0109] In some embodiments, the control channels of the LTE and the NR occupy the first three symbols in the subframe. Among them, the control channels of the LTE include the LTE PDCCH, the LTE PCFICH, the LTE PHICH, etc., and the control channels of the NR include the NR PDCCH.

[0110] It should be noted that the related content that the control channels of the LTE and the NR occupy the first three symbols in the subframe has been described in detail in the foregoing S201, and will not be described here.

[0111] In some embodiments, in the case that the control channel of the LTE occupies the first symbol, the NR PDCCH occupies the second and third symbols, and the first cell is in the NR state, the allocation of the downlink resources in the downlink subframe is as shown in Figure 9 .

[0112] Figure 9 The downlink resources in the downlink subframe are shown in the form of small squares, and each small square represents a combination of a symbol and a subcarrier.

[0113] As shown in Figure 9 , on the LTE side, the LTE PDCCH occupies the first symbol, the LTE CRS is transmitted on the first symbol (the symbol marked as 0) of each subframe, and is transmitted every 2 subcarriers on the symbol, and the remaining data symbols are configured as the MBSFN null subframe format.

[0114] On the NR side, the NR PDCCH occupies the second and third symbols, and the downlink resources included in the remaining data symbols (the fourth symbol to the fourteenth symbol) on the NR side are allocated to the PDSCH of the NR. Meanwhile, the NR needs to puncture the first symbol of the subframe to guarantee the transmission quality of the LTE PDCCH. The downlink resources included in the data symbols can also be referred to as service resources, service transmission resources, etc.

[0115] It should be understood that the control channel of the LTE can include the LTE PDCCH, the LTE PCFICH, and the LTE PHICH, and the control channel of the LTE is not limited in the present application. Figure 9 In the examples, only the control channel of the LTE includes the LTE PDCCH.

[0116] In some embodiments, in the case where the control channel of the LTE occupies the first and second symbols, and the NR PDCCH occupies the third symbol, the allocation of the downlink resources in the downlink subframe in the case where the first cell is in the LTE state is as shown in FIG. 2. Figure 10

[0117] In the examples, the downlink resources in the downlink subframe are shown in the form of small squares, and each small square represents a combination of a symbol and a subcarrier. Figure 10

[0118] As shown in FIG. 1, on the LTE side, the LTE PDCCH occupies the first symbol and the second symbol, and the LTE CRS is transmitted on the first symbol (the symbol marked as 0) of each subframe, and is transmitted every 2 subcarriers on the symbol, and the downlink resources included in the remaining data symbols are configured in the MBSFN blank subframe format. Figure 10

[0119] On the NR side, the NR PDCCH occupies the third symbol, and the downlink resources included in the remaining data symbols (the fourth symbol to the fourteenth symbol) on the NR side are allocated to the PDSCH of the NR. Meanwhile, the NR needs to puncture the first symbol and the second symbol of the subframe to guarantee the transmission quality of the LTE PDCCH.

[0120] It should be understood that the control channel of the LTE can include the LTE PDCCH, the LTE PCFICH, and the LTE PHICH, and the control channel of the LTE is not limited in the present application. Figure 10 In the examples, only the control channel of the LTE includes the LTE PDCCH.

[0121] ​​​As can be seen from the above S201-S202, the downlink resource allocation method provided in the application can allocate data symbols on the downlink subframe to the PDSCH of LTE when the first cell is in the LTE state, and allocate data symbols on the downlink subframe to the PDSCH of NR and configure the data symbols as the MBSFN null subframe format on the LTE side when the first cell is in the NR state. It should be understood that the data part in the MBSFN null subframe does not contain CRS, so the LTE on the downlink subframe only transmits CRS on the symbols corresponding to the PDCCH, without transmitting CRS on the data symbols. In this way, when the first cell is in the LTE state or the NR state, the NR only needs to puncture on the symbols corresponding to the PDCCH of LTE, thereby reducing the influence of CRS on NR and improving the downlink transmission performance of the cell.

[0122] In some embodiments, since the to-be-sent system message of the first cell can reflect the main service user of the cell in the current configuration, based on this, the working state of the first cell can be determined based on the determination. As shown in Figure 11 The downlink resource configuration method provided in the application further includes the following S301-S302.

[0123] S301, in the case that the to-be-sent system message of the first cell is an LTE system message, determining that the first cell is in the LTE state.

[0124] In some embodiments, since the base station configures the transmission period of the system message based on the system message configuration information issued by the network management device, in the case that the system message configuration information indicates that the to-be-sent system message of the first cell is an LTE system message, the first cell can be determined to be in the LTE state.

[0125] In some embodiments, whether the to-be-sent system message of the first cell is an LTE system message can be determined based on the system information block (SIB) type or the master information block (MIB) content of the to-be-sent system message of the first cell.

[0126] S302, in the case that the to-be-sent system message of the first cell is an NR system message, determining that the first cell is in the NR state.

[0127] In some embodiments, since the base station configures the transmission period of the system message based on the system message configuration information issued by the network management device, in the case that the system message configuration information indicates that the to-be-sent system message of the first cell is an NR system message, the first cell can be determined to be in the NR state.

[0128] In some embodiments, whether the to-be-sent system message of the first cell is an NR message can be determined based on a SIB type or MIB content of the to-be-sent system message of the first cell.

[0129] In some embodiments, the first cell can be configured by a network management device to determine that the first cell is in an LTE state if the to-be-sent system message of the first cell is an LTE system message, and determine that the first cell is in an NR state if the to-be-sent system message of the first cell is an NR system message.

[0130] In some embodiments, if the to-be-sent system message of the first cell includes both an LTE system message and an NR system message, in order to simultaneously meet the service requirements of NR and the service requirements of LTE, the first cell needs to simultaneously send the LTE system message and the NR system message on the same subframe. Based on this, as shown in Figure 12 the downlink resource allocation method provided by the present application further includes S401-S402.

[0131] S401, in a case where the to-be-sent system message of the first cell is an LTE system message and an NR system message, determining that the first cell is in an LTE and NR coexistence state.

[0132] It should be understood that the first cell being in the LTE and NR coexistence state indicates that the first cell can realize resource multiplexing of LTE and NR in time domain and frequency domain through DSS technology.

[0133] It should be noted that the related content of determining the to-be-sent system message of the first cell has been described in detail in S301 and S302 above, and will not be described here again.

[0134] S402, in a case where the first cell is in the LTE and NR coexistence state, allocating data symbols on a downlink subframe to a PDSCH of LTE and a PDSCH of NR.

[0135] In some embodiments, in a case where the data symbols on the downlink subframe are allocated to the PDSCH of LTE and the PDSCH of NR, in the downlink subframe, the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of LTE is greater than the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of NR; or, in the downlink subframe, the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of LTE is less than the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of NR.

[0136] That is, in the case that the PDSCH of the LTE and the PDSCH of the NR share the data symbols of the downlink resource on the downlink subframe, the LTE uses the PRB from the high frequency side of the carrier frequency band and the NR uses the PRB from the low frequency side of the carrier frequency band, or the LTE uses the PRB from the low frequency side of the carrier frequency band and the NR uses the PRB from the high frequency side of the carrier frequency band. The downlink resource included by the data symbol can be expressed in the form of the combination of the symbol and the subcarrier.

[0137] It should be understood that using the PRB from the high frequency side and the low frequency side of the carrier frequency band for the LTE and the NR respectively can reduce the interference between the NR and the LTE, and the same configuration strategy can be adopted in the second cell to reduce the co-frequency interference from the LTE of the second cell to the NR of the first cell.

[0138] It should be understood that the second cell and the first cell use the same DSS carrier and are located in the BBU pool group of the first cell 120. It should be understood that the second cell and the first cell use the same DSS carrier, which means that the second cell and the first cell can both support the DSS mode and share the same frequency spectrum resource to provide services for 4G LTE and 5G NR users.

[0139] It should be noted that the first cell is in the LTE state, which means that the cell mainly serves the LTE user under the current configuration; the first cell is in the NR state, which means that the cell mainly serves the NR user under the current configuration. Therefore, the working state of the first cell can be determined based on the main service user of the cell, and the working state includes the LTE state and the NR state. In some embodiments, in the case that the first cell transmits service data, the LTE state and the NR state of the first cell can be flexibly time-allocated based on the time allocation proportion of the first cell in the LTE state and the NR state. As shown in Figure 13 It should be understood that the downlink resource allocation method provided by the present application also includes the following S501-S502.

[0140] S501, in the case that the first cell transmits service data, determining a first proportion.

[0141] The first proportion is used to indicate the time allocation proportion of the first cell in the LTE state and the NR state in a preset time period.

[0142] In some embodiments, since the proportion between the LTE traffic and the NR traffic of the first cell can reflect the change of the user service demand, the time allocation proportion of the first cell in the LTE state and the NR state can be determined based on the proportion between the LTE traffic and the NR traffic of the first cell.

[0143] Exemplarily, in the above S501, determining the first proportion includes the following A1-A2.

[0144] A1, determine a second ratio, the second ratio being a ratio between the LTE traffic and the NR traffic of the first cell in a preset time period.

[0145] In some embodiments, a historical preset time period is a time period before the preset time period, and the LTE traffic and the NR traffic of the first cell in the historical preset time period can be counted. Based on the LTE traffic and the NR traffic of the first cell in the historical preset time period, the ratio between the LTE traffic and the NR traffic of the first cell in the preset time period can be predicted.

[0146] The length of the historical preset time period can be consistent with the length of the preset time period, for example, the length of the historical preset time period and the length of the preset time period can both be 20 ms.

[0147] A2, determine the first ratio based on the second ratio.

[0148] As an example, the second ratio is equal to the first ratio, that is, the first ratio can be the same as the second ratio.

[0149] As another example, the first ratio is a product of the second ratio and a third ratio. Since the transmission efficiency of NR can be different from the transmission efficiency of LTE, the first ratio can be the product of the second ratio and the third ratio. The third ratio can be a transmission efficiency compensation ratio, for example, the third ratio is a ratio between the transmission efficiency of LTE and the transmission efficiency of NR.

[0150] S502, based on the first ratio, time allocate the LTE state and the NR state of the first cell in the preset time period.

[0151] For example, the first ratio is 1:1, the preset time period is 1 hour, the duration of the LTE state of the first cell is 0.5 hours, and the duration of the NR state of the first cell is 0.5 hours.

[0152] In some embodiments, the time granularity of time allocation is a subframe. After time allocation, the ratio between the number of subframes in which the first cell is in the LTE state and the number of subframes in which the first cell is in the NR state in the preset time period is the first ratio.

[0153] In some embodiments, in order to reduce the interference of surrounding cells using the same DSS carrier on the first cell, the system cycles between the surrounding cells using the same DSS carrier and the first cell can be aligned. Based on this, the downlink resource allocation method provided by the present application further comprises: time aligning the NR system message cycle and the LTE system message cycle of the first cell and the second cell.

[0154] The second cell uses the same DSS carrier as the first cell and is located in the BBU pool group of the first cell 120. It should be understood that the second cell uses the same DSS carrier as the first cell means that the second cell and the first cell can both support the DSS mode and share the same frequency spectrum resource to provide services for 4G LTE and 5G NR users.

[0155] It should be understood that time alignment of the NR system message period and the LTE system message period of the first cell and the second cell can reduce the possibility of interference of the first cell NR side by the LTE CRS of the second cell by implementing LTE system message subframe time-frequency synchronization and NR system message subframe time-frequency synchronization on the DSS carrier in a larger area range.

[0156] It should be noted that the first cell can be any one of the DSS cells in which a plurality of NR and LTE carriers overlap and which are connected to the network management device. Therefore, in some cases, the second cell can also be the first cell. Therefore, the downlink resource allocation method provided by the present application is also applicable to the second cell.

[0157] In some embodiments, in the case where the first cell and the second cell simultaneously transmit service data, the time allocation of the LTE state and the NR state of the first cell in the preset time period based on the first proportion in the above S502 can be combined with the strategy of time allocation of the LTE state and the NR state of the second cell to realize the synchronization of the working states between the first cell and the second cell as much as possible, so as to reduce the interference of the second cell LTE CRS to the first cell NR PDSCH.

[0158] In some embodiments, the network management device can evaluate the actual data transmission amount ratio or transmission resource usage ratio between LTE and NR in all cells using the same DSS carrier in the BBU pool group in a historical preset time period as a third proportion. The historical preset time period is a time period before the preset time period.

[0159] The network management device can also adjust the proportion of the downlink resources allocated to LTE and NR of the first cell in the preset time period by the third proportion, that is, the time proportion of the first cell between the LTE state and the NR state in the preset time period. Then, the allocation of the downlink resources of LTE and NR of all second cells using the DSS carrier in the BBU pool group in the preset time period is semi-statically and synchronously adjusted.

[0160] In some embodiments, the working state of the first cell includes the LTE state and the NR state; and the working state of the second cell includes the LTE state and the NR state.

[0161] After the working state synchronization between the first cell and the second cell is realized, the proportion of downlink subframes in which the first cell and the second cell are in the same working state is greater than a first threshold value in a preset time period.

[0162] The first threshold value is a preset fixed value or an adjustable parameter that can be configured according to system requirements.

[0163] It should be understood that the uplink subframes of the first cell and the second cell are correspondingly configured according to the 3GPP specification. In the configuration process of the physical random access channel (PRACH), the time interval between the PRACH and the corresponding downlink channel should be reasonable to avoid an increase in the RAR response delay due to an excessively long interval, thereby affecting the access performance of the user equipment.

[0164] For example, in the case of an excessively long time interval between the LTE PRACH and the corresponding downlink channel, the first cell can be adjusted to the NR state or the LTE and NR coexistence state.

[0165] In the case of an excessively long time interval between the NR PRACH and the corresponding downlink channel, the first cell can be adjusted to the LTE state or the LTE and NR coexistence state.

[0166] It can be seen that the above mainly introduces the scheme provided by the embodiments of the present application from the perspective of the method. In order to realize the above functions, the embodiments of the present application provide corresponding hardware structures and / or software modules for executing various functions. Those skilled in the art should easily realize that the modules and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is realized in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0167] The embodiments of the present application can divide the function modules of the downlink resource allocation device according to the above method examples. For example, each function module can be divided corresponding to each function, or two or more functions can be integrated in one processing module. The integrated module can be realized in the form of hardware or software function module. Optionally, the division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. When actually implemented, another division method can be used.

[0168] In some embodiments, the present application also provides a downlink resource allocation apparatus. The downlink resource allocation apparatus can include one or more functional modules for implementing the downlink resource allocation method of the above method embodiments.

[0169] For example, Figure 14 A composition diagram of a downlink resource allocation apparatus provided by an embodiment of the present application is shown in FIG. 6. As shown in FIG. 6, the downlink resource allocation apparatus 600 includes a processing module 601. The processing module 601 is configured to, in a case where a first cell is in a long term evolution (LTE) state, allocate data symbols on a downlink subframe to a PDSCH of the LTE; the data symbols are symbols in the subframe for transmitting user plane data; in a case where the first cell is in a new radio (NR) state, allocate the data symbols on the downlink subframe to a PDSCH of the NR, and configure the data symbols as a MBSFN null subframe format on an LTE side. Figure 14

[0170] In a possible implementation, the processing module 601 is further configured to, in a case where a system message to be transmitted by the first cell is an LTE system message, determine that the first cell is in the LTE state; in a case where the system message to be transmitted by the first cell is an NR system message, determine that the first cell is in the NR state.

[0171] In another possible implementation, the processing module 601 is further configured to, in a case where the first cell transmits service data, determine a first proportion; the first proportion is used to indicate a time allocation proportion of the LTE state and the NR state of the first cell in a preset time period; and based on the first proportion, perform time allocation on the LTE state and the NR state of the first cell in the preset time period.

[0172] In another possible implementation, the processing module 601 is specifically configured to determine a second proportion; the second proportion is a proportion between LTE traffic and NR traffic of the first cell in the preset time period; and based on the second proportion, determine the first proportion.

[0173] In another possible implementation, the processing module 601 is further configured to, in a case where the first cell is in a coexistence state of the LTE and the NR, allocate the data symbols on the downlink subframe to the PDSCH of the LTE and the PDSCH of the NR.

[0174] In another possible implementation, the processing module 601 is further configured to, in a case where the system message to be transmitted by the first cell is an LTE system message and an NR system message, determine that the first cell is in the coexistence state of the LTE and the NR.

[0175] ​In another possible implementation, in a downlink subframe, the subcarrier frequencies corresponding to the data symbols of the PDSCH allocated to the LTE are greater than the subcarrier frequencies corresponding to the data symbols of the PDSCH allocated to the NR; or, in a downlink subframe, the subcarrier frequencies corresponding to the data symbols of the PDSCH allocated to the LTE are less than the subcarrier frequencies corresponding to the data symbols of the PDSCH allocated to the NR.

[0176] In another possible implementation, the processing module 601 is further configured to perform time alignment on the NR system message period and the LTE system message period of the first cell and the second cell; the second cell uses the same DSS carrier as the first cell and is located in the baseband unit pool group of the first cell.

[0177] In another possible implementation, the working state of the first cell includes an LTE state and an NR state; the working state of the second cell includes an LTE state and an NR state; and the proportion of downlink subframes in which the first cell and the second cell are in the same working state within a preset time period is greater than a first threshold.

[0178] In the case where the functions of the above integrated modules are implemented in the form of hardware, the present embodiment provides a possible structural diagram of the electronic device involved in the above embodiments. As shown in the figure, the electronic device 700 includes a processor 702, a communication interface 703, and a bus 704. Optionally, the electronic device 700 can further include a memory 701. Figure 15

[0179] The processor 702 can be various exemplary logical blocks, modules and circuits described in combination with the disclosure of the present application. The processor 702 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic device, hardware component or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in combination with the disclosure of the present application. The processor 702 can also be a combination of computing functions, such as a combination of one or more microprocessors, a combination of DSP and microprocessor, etc.

[0180] The communication interface 703 is configured to connect with other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN) and the like.

[0181] ​The memory 701 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

[0182] As a possible implementation, the memory 701 can exist independently of the processor 702, and the memory 701 can be connected to the processor 702 through the bus 704 for storing instructions or program codes. When the processor 702 invokes and executes the instructions or program codes stored in the memory 701, the downlink resource allocation method provided by the embodiments of the present application can be implemented.

[0183] In another possible implementation, the memory 701 can also be integrated with the processor 702.

[0184] The bus 704 can be an extended industry standard architecture (EISA) bus or the like. The bus 704 can be divided into an address bus, a data bus, a control bus, and the like. For the sake of brevity and clarity, Figure 15 Only one thick line is used to represent the bus in the figure, but it does not mean that there is only one bus or only one type of bus.

[0185] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of brevity and clarity, only the above division of functional modules is exemplified, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the service calling device is divided into different functional modules to complete all or part of the functions described above.

[0186] The embodiments of the present application further provide a computer readable storage medium. All or part of the processes in the method embodiments above can be instructed by computer instructions to complete relevant hardware, and the program can be stored in the computer readable storage medium. When the program is executed, the program can include the processes of the method embodiments above. The computer readable storage medium can be the memory of any of the foregoing embodiments. The computer readable storage medium can also be an external storage device of the service calling device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the computer readable storage medium can include both the internal storage unit of the service calling device and the external storage device. The computer readable storage medium is used to store the computer program and other programs and data required by the service calling device. The computer readable storage medium can also be used to temporarily store data that has been output or will be output.

[0187] The embodiments of the present application further provide a computer program product, which contains a computer program, and when the computer program product runs on a computer, the computer program product makes the computer execute any one of the downlink resource allocation methods provided in the embodiments above.

[0188] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A downlink resource allocation method, characterized by, The method comprises: allocating data symbols on a downlink subframe to a physical downlink shared channel (PDSCH) of LTE when the first cell is in a long term evolution (LTE) state; the data symbols are symbols in the subframe for transmitting user plane data; allocating data symbols on the downlink subframe to a PDSCH of NR and configuring the data symbols as multimedia broadcast multicast service single frequency network (MBSFN) null subframe format on the LTE side when the first cell is in a new radio (NR) state.

2. The method according to claim 1, characterized in that The method further comprises: determining that the first cell is in the LTE state when a system message to be transmitted by the first cell is an LTE system message; determining that the first cell is in the NR state when a system message to be transmitted by the first cell is an NR system message.

3. The method of claim 1, wherein, The method further comprises: determining a first proportion when the first cell transmits service data; the first proportion is used to indicate a time allocation proportion of the first cell in the LTE state and the NR state within a preset time period; allocating time to the LTE state and the NR state of the first cell within the first preset time period based on the first proportion.

4. The method of claim 3, wherein, The determination of the first proportion comprises: determining a second proportion, the second proportion being a proportion between LTE traffic and NR traffic of the first cell within a preset time period; determining the first proportion based on the second proportion.

5. The method of claim 1, wherein, The method further comprises: allocating data symbols on a downlink subframe to a PDSCH of LTE and a PDSCH of NR when the first cell is in a LTE and NR coexistence state.

6. The method of claim 5, wherein, The method further comprises: determining that the first cell is in the LTE and NR coexistence state when a system message to be transmitted by the first cell is an LTE system message and an NR system message.

7. The method of claim 5, wherein, In the downlink subframe, the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of LTE is greater than the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of NR; or, In the downlink subframe, the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of LTE is less than the subcarrier frequency corresponding to the data symbols allocated to the PDSCH of NR.

8. The method of claim 1, wherein, The method further comprises: time aligning NR system message periods and LTE system message periods of the first cell and a second cell; the second cell uses a same dynamic spectrum sharing (DSS) carrier as the first cell and is located in a baseband unit pool group of the first cell.

9. The method of claim 8, wherein, The working state of the first cell comprises the LTE state and the NR state; the working state of the second cell comprises the LTE state and the NR state; In a preset time period, a proportion of downlink subframes in which the first cell and the second cell are in a same working state is greater than a first threshold.

10. An electronic device, comprising: The computer device comprises a processor and a memory, the processor is coupled with the memory; the memory is used for storing computer instructions, the computer instructions are loaded and executed by the processor to enable the computer device to implement the downlink resource allocation method in any one of claims 1 to 9.

11. A computer readable storage medium, characterized in that, The computer readable storage medium comprises computer execution instructions, when the computer execution instructions run on the computer, enable the computer to execute the downlink resource allocation method in any one of claims 1 to 9.

12. A computer program product, characterised in that, The computer program product comprises a computer program, when the computer program runs on the electronic device, enables the electronic device to execute the downlink resource allocation method in any one of claims 1 to 9.

Images