CN111465043B

CN111465043B - Resource allocation method and device

Info

Publication number: CN111465043B
Application number: CN201910059134.3A
Authority: CN
Inventors: 刘华玲
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2021-11-12
Anticipated expiration: 2039-01-22
Also published as: CN111465043A

Abstract

The application discloses a resource allocation method and a resource allocation device, which are used for avoiding the influence caused by harmonic interference and intermodulation interference and simultaneously not increasing the burden of an X2 interface. The resource allocation method provided by the application comprises the following steps: initiating a new air interface wireless interface protocol architecture dual-connection EN-DC establishment request to a base station where a new wireless NR cell is located, and receiving an EN-DC establishment response message fed back by the NR cell; determining a first frequency band generating second harmonic interference to the NR cell according to the EN-DC establishment response message; and allocating the PRB resources of the EN-DC user uplink physical resource block according to the uplink bandwidth of the LTE cell and the first frequency band, and informing the resource allocation information to the NR cell.

Description

Resource allocation method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a resource allocation method and apparatus.

Background

In the future, a New wireless (New Radio, NR) terminal of 5G will support multiple systems such as Long Term Evolution (LTE) and NR, and the situation that multiple systems work simultaneously on multiple carriers. For example, in a fifth Generation (5th-Generation) non-independent (NSA) networking scenario, when LTE and NR transceiving links operate simultaneously, there is self-interference of transceiving signals between multiple frequency bands. According to the source of interference to the terminal, the interference is divided into harmonic interference and intermodulation interference.

Harmonic interference, i.e. when the input is a single-tone signal f1, the output signal contains high-order harmonic components such as 2f1, 3f1, etc. If the harmonic wave falls into another receiving frequency band, harmonic wave interference is caused, and the small influence of the harmonic wave amplitude above the third harmonic wave amplitude can be ignored.

Intermodulation interference, i.e., when the input signal contains multiple frequency components, the output contains the intermodulation products of each order of these frequency components. Taking the two frequency components f1 and f2 as an example, the output includes second order intermodulation (f1 ± f2), third order intermodulation (2f1 ± f2, f1 ± 2f2), and the like. Intermodulation interference may be caused if intermodulation products fall into the receiving band. The interference mostly occurs in a high-frequency and low-frequency simultaneous transmission scene, and an external signal is poured into a UE (User Equipment User terminal) transmission link scene, for example, LTE voice and 5G data are concurrent, LTE signaling and 5G data are concurrent, and the like. The second-order distortion amplitude in the intermodulation distortion is the largest, the higher the order, the smaller the distortion amplitude, generally speaking, the influence of the smaller third-order or above intermodulation distortion amplitude brought under most scenes can not be considered. The scheme is therefore described primarily based on second order intermodulation expansions. But the resource coordination method is not limited to the application in the multi-order intermodulation interference scenario.

The principle of harmonic interference and intermodulation interference is shown in fig. 1, according to the Frequency band analysis of the current LTE and NR, taking the Frequency Division multiplexing (FDD) 1.8G actually used Frequency band (uplink 1735-; the second order intermodulation disturbs the downlink frequency band of the whole LTE. Fig. 2 is a maximum frequency range in which full-band scheduling may generate interference, in an actual application scenario, an interference situation needs to calculate a corresponding interference band according to a Physical Resource Block (PRB) position of actual uplink and downlink scheduling of a terminal, and a protection bandwidth of about 10M needs to be reserved before and after the interfered band to prevent sensitivity reduction caused by interference from affecting the performance of the terminal.

Disclosure of Invention

The embodiment of the application provides a resource allocation method and device, which are used for avoiding the influence caused by harmonic interference and intermodulation interference and simultaneously not increasing the burden of an X2 interface.

On an LTE cell side, a resource allocation method provided in an embodiment of the present application includes:

initiating an Evolved Universal Terrestrial Radio Access (E-UTRA-NR Dual Connectivity, EN-DC) request from E-UTRA to NR (Evolved Universal Terrestrial Radio Access, E-UTRA) to a base station where a New Radio (NR) cell is located, namely, receiving an EN-DC establishment response message fed back by the NR cell, wherein the EN-DC establishment request is a New air interface wireless interface protocol architecture Dual connection EN-DC establishment request;

determining a first frequency band generating second harmonic interference to the NR cell according to the EN-DC establishment response message;

and allocating the PRB resources of the EN-DC user uplink physical resource block according to the uplink bandwidth of the LTE cell and the first frequency band, and informing the resource allocation information to the NR cell.

And the EN-DC establishes NR Mode Information (NR-Mode-Info) of the serving NR Cell Information in the response message of the LTE Cell to acquire the TDD/FDD Mode and the Cell working frequency band of the EN-DC neighboring Cell, and further judges a frequency band first frequency band A of the LTE Cell which may generate second harmonic interference to the NR Cell.

According to the resource allocation method, a new air interface wireless interface protocol architecture double-connection EN-DC establishment request initiated by a base station where a new wireless NR cell is located and response information of the new air interface wireless interface protocol architecture double-connection EN-DC establishment request are utilized to determine a first frequency band generating second harmonic interference to the NR cell, the LTE cell performs EN-DC user uplink physical resource block PRB resource allocation according to the first frequency band and then sends resource allocation information to the NR cell, and the NR cell performs EN-DC user resource allocation according to the resource allocation information. Therefore, the resource allocation method provided by the application does not need additional user-level periodic X2 interface interaction information, air interface resources are fully utilized, the influence caused by harmonic interference and intermodulation interference is avoided, and meanwhile, the burden of an X2 interface is not increased.

Optionally, the allocating the EN-DC user uplink PRB resources according to the LTE cell uplink bandwidth and the first frequency band specifically includes:

periodically counting the uplink PRB occupancy rate of the LTE cell;

when the uplink PRB occupancy rate of the LTE cell is less than: (LTE cell uplink bandwidth-the first frequency band)/(cell uplink bandwidth-the protection margin of the first frequency band), determining that an EN-DC user uplink schedulable PRB is the remaining resource except for the first frequency band;

otherwise, determining that the EN-DC user uplink scheduling PRB is all PRB resources of the LTE cell.

Optionally, in the case of the else, the method further includes: and preferentially scheduling non-EN-DC users to the first frequency band when the LTE cell schedules.

On the NR cell side, an embodiment of the present application provides a method for resource allocation, including:

receiving an EN-DC establishment request initiated by an LTE cell;

determining a second frequency band generating intermodulation interference to the LTE cell according to wireless mode information in wireless service cell information in the EN-DC establishment request;

and allocating EN-DC user uplink PRB resources according to the uplink PRB occupancy rate of the NR cell and the second frequency band.

The NR Cell acquires a TDD/FDD system of the LTE Cell and a Cell uplink working frequency band (for the TDD Cell, the uplink and downlink Subframe ratio can be further acquired through Subframe Assignment) according to wireless network Mode Information (EUTRA-Mode-Info) of serving E-UTRA Cell Information (Served E-UTRA Cell Information) in an EN-DC X2 establishment request, and further judges a second frequency band B or an uplink Subframe where the NR Cell may generate intermodulation interference on the LTE Cell.

Optionally, the allocating the EN-DC user uplink PRB resources according to the uplink PRB occupancy of the NR cell and the second frequency band specifically includes:

periodically counting the occupancy rate of the uplink PRB of the NR cell;

when the uplink PRB occupancy rate of the NR cell is less than: (NR cell uplink bandwidth-the second frequency band)/(NR cell uplink bandwidth-the protection margin of the second frequency band), determining that the EN-DC user uplink schedulable PRB is the remaining resource except the frequency band;

otherwise, determining that the scheduling PRBs in the EN-DC user uplink are all PRB resources of the NR cell.

Optionally, the method further comprises:

and determining the resource allocation information of the LTE cell, and allocating the available resources of the NR cell according to the resource allocation information of the LTE cell.

When the EN-DC user measures that an NR Cell signal meets a Secondary Cell Group (SCG) adding condition, a Secondary Cell Group adding Request (SCG Addition Request) is sent to the NR Cell, and the master eNodeB Resource Coordination Information (menB Resource Coordination Information) is carried.

Optionally, determining resource allocation information of an LTE cell, and allocating an NR cell available resource according to the resource allocation information of the LTE cell includes:

determining resource allocation information of an LTE cell by receiving an auxiliary cell group Addition Request SCG Addition Request sent by an EN-DC user;

determining that a PRB containing a first frequency band exists according to the resource allocation information of the LTE cell; the first frequency band is a frequency band which generates second harmonic interference to an NR cell;

when the PRB containing the first frequency band does not exist, distributing all PRB resources to NR cell downlink users;

otherwise, allocating PRB not including single frequency band to NR cell downlink user; wherein the single frequency band is a partial frequency band of the first frequency band.

Optionally, allocating the NR cell available resource according to the resource allocation information of the LTE cell, specifically, the method further includes:

determining whether the uplink of the NR cell and the uplink of the LTE cell simultaneously transmit data or not according to the resource allocation information of the LTE cell;

when the NR cell uplink does not transmit data simultaneously with the LTE cell uplink, allocating all uplink PRBs to NR cell uplink users;

and when the NR cell uplink and the LTE cell uplink simultaneously transmit data, allocating uplink PRBs to NR cell uplink users according to the NR cell uplink PRB occupancy rate.

Optionally, when the uplink PRB is allocated to the NR cell uplink user according to the occupancy of the NR cell uplink PRB, and the allocated uplink resource is a full bandwidth, it is determined that the NR cell uplink resource preferentially avoids the second frequency band.

On an LTE cell side, an embodiment of the present application provides a resource allocation apparatus, where the apparatus includes:

the first unit is used for the LTE cell to initiate a new air interface wireless interface protocol architecture double-connection EN-DC establishment request to a base station where a new wireless NR cell is located and receive an EN-DC establishment response message fed back by the NR cell;

a second unit, configured to determine, according to the EN-DC establishment response message, a first frequency band that generates second harmonic interference to an NR cell;

and the third unit is used for allocating the PRB resources of the EN-DC user uplink physical resource block according to the uplink bandwidth of the LTE cell and the first frequency band and notifying resource allocation information to the NR cell.

periodically counting the uplink PRB occupancy rate of the LTE cell;

Optionally, in the case of the else, the apparatus further includes:

a fourth unit, configured to preferentially schedule non-EN-DC users to the first frequency band when the LTE cell is scheduled.

Correspondingly, on the NR cell side, an embodiment of the present application provides a resource allocation apparatus, including:

the device comprises a first unit, a second unit and a third unit, wherein the first unit is used for receiving an EN-DC establishment request initiated by an LTE cell by an NR cell;

a second unit, configured to determine, according to radio mode information in radio serving cell information in the EN-DC establishment request, a second frequency band that generates intermodulation interference with an LTE cell;

and the third unit is used for allocating EN-DC user uplink PRB resources according to the uplink PRB occupancy rate of the NR cell and the second frequency band.

periodically counting the occupancy rate of the uplink PRB of the NR cell;

Optionally, the apparatus further comprises:

a fourth unit, configured to determine resource allocation information of an LTE cell, and allocate an NR cell available resource according to the resource allocation information of the LTE cell.

Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used for storing program instructions, and the processor is used for calling the program instructions stored in the memory and executing any one of the above methods according to the obtained program.

Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of harmonic interference and intermodulation interference provided in an embodiment of the present application;

fig. 2 is a schematic diagram of harmonic interference and intermodulation interference provided in an embodiment of the present application;

fig. 3 is a schematic flowchart of a resource allocation method according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a resource allocation method provided at an LTE cell side according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a resource allocation method provided at an NR cell side according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a resource allocation apparatus provided at an LTE cell side according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a resource allocation apparatus provided at an NR cell side according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a resource allocation method and a resource allocation device, which are used for utilizing the existing new air interface wireless interface protocol architecture double connection EN-DC X2 Setup process and the main eNodeB resource coordination information carried by the X2 user auxiliary cell group addition request message for establishing double connection of users, no additional user-level periodic X2 port interaction information is needed, air interface resources are fully utilized to avoid the influence caused by harmonic interference and intermodulation interference, and the burden of an X2 interface is not increased.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a universal microwave Access (WiMAX) system, a 5G NR system, and the like. These various systems include terminal devices and network devices.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. The names of the terminal devices may also be different in different systems, for example, in a 5G system, the terminal devices may be referred to as User Equipments (UEs). Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers with mobile terminal devices, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, communicate with one or more core networks via the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to interconvert received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved network device (eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station in a 5G network architecture (next generation system), and may also be a home evolved node B (HeNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like, which are not limited in the embodiments of the present application.

Various embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the display sequence of the embodiment of the present application only represents the sequence of the embodiment, and does not represent the merits of the technical solutions provided by the embodiments.

In the prior art, a resource scheduling algorithm for avoiding harmonic or intermodulation interference is not considered at present, and interference avoidance is generally performed by the following method for scheduling resources available in full bandwidth:

a static resource scheduling method, namely, when allocating PRB resources, an NR cell avoids PRB resources which may be interfered or may cause interference of other frequency bands, and the air interface resources of the NR cell level in the method are wasted;

the terminal avoids uplink double-transmission, namely the terminal avoids self-interference by adopting uplink transmission of a carrier, the terminal determines whether to transmit the uplink single-transmission according to a frequency band combination specified by 3GPP, and the base station determines whether to configure a single-transmission mode for the terminal according to the UE capability whether the terminal reports to support the uplink single-transmission. The method can be used for avoiding intermodulation interference, but harmonic interference cannot be avoided, and scheduling cannot be flexibly performed according to the actual service condition of the terminal, so that air interface resources are wasted, and uplink rate is limited, so that user experience is influenced;

the dynamic resource coordination method is characterized in that when the LTE cell and the NR cell are subjected to combined scheduling, the scheduling is carried out by considering the interference harmonic relation of a terminal during the scheduling, and PRBs which are possibly interfered or cause interference are dynamically avoided. The method has high requirements on product capability, and needs two systems to share Medium Access Control (MAC) scheduling.

When the method is actually applied in an external field, the above schemes all have certain disadvantages, so the scheme provides a method for interactively adjusting NR and LTE frequency domain resource allocation through an X2 interface to avoid interference. The scheme has little change on the existing scheduling algorithms of LTE and NR, only utilizes the existing EN-DC X2 Setup process and the MeNB Resource Coordination Information (see 9.2.116 of protocol 36.423) carried by the SGNB ADDITION REQUEST message of the X2 user establishing double connection with the user, does not need additional user-level periodic X2 port interaction Information, can fully utilize air interface resources, avoids the influence caused by harmonic interference and intermodulation interference, and does not increase the burden of an X2 interface.

In the first embodiment, referring to fig. 3, the implementation process specifically includes:

the method comprises the steps that firstly, an LTE cell judges whether the LTE cell starts an EN-DC function, if not, a terminal self-interference suppression algorithm does not need to be considered, otherwise, a base station where the LTE cell is located initiates an EN-DC establishment request to a base station where an EN-DC adjacent cell is located, and the following steps are executed;

and step two, the LTE Cell acquires the TDD/FDD Mode and the Cell working frequency band of the EN-DC adjacent Cell according to NR Mode Information (NR-Mode-Info) of NR service Cell Information (Served NR Cell Information) in the EN-DC X2 establishment response, and further judges the frequency band A of the LTE Cell which possibly generates second harmonic interference to the NR Cell.

The NR Cell acquires a TDD/FDD Mode of the LTE Cell and a Cell uplink working frequency band (for the TDD Cell, uplink and downlink subframe ratio can be further acquired through subframe allocation) according to dual connection service Information (EUTRA-Mode-Info) of dual connection service Cell Information (Served E-UTRA Cell Information) in an EN-DC X2 establishment request, and further judges a frequency band B or an uplink subframe of the NR Cell, wherein the frequency band B or the uplink subframe may generate intermodulation interference on the LTE Cell.

For example, LTE uses FDD 1.8G frequency band (uplink 1735-:

the range A of a downlink receiving frequency band of the NR influenced by the second harmonic wave of the LTE uplink is 3500<2f <3600, namely A belongs to 1750-1755, and the range A' of the NR responded is 3500-3510;

and the NR cell judges whether the uplink transmission is carried out simultaneously according to the TDD/FDD system and the uplink and downlink subframe ratio of the LTE cell. If the frequency band range B of NR and LTE which can affect the downlink receiving of LTE by uplink transmission at the same time is 1735+1830< f <1750+1850, namely B belongs to 3565-3600;

in addition, the second harmonic component is mainly considered in the embodiment of the application, but the resource coordination method is not limited to be applied in a multiple harmonic interference scenario.

Step three, periodically counting the occupancy rate of the uplink PRB of the cell by the LTE cell, and if the occupancy rate of the PRB is less than (cell uplink bandwidth-frequency band A)/(cell uplink bandwidth-delta), scheduling the PRB to be a resource for eliminating the frequency band A by the EN-DC user uplink, wherein the delta is a protection margin; otherwise, the EN-DC user uplink can schedule PRB as all PRB resources of the cell, and the non-EN-DC user is preferentially scheduled to the frequency band A during the LTE cell scheduling.

The NR cell periodically counts the occupancy rate of the uplink PRB of the cell, if the occupancy rate of the PRB is less than (cell uplink bandwidth-frequency band B)/(cell uplink bandwidth-delta), the EN-DC user uplink can schedule the PRB as a resource for eliminating the frequency band B, and the delta is a protection margin, otherwise, the EN-DC user uplink can schedule the PRB as all PRB resources of the cell;

and step four, when the EN-DC user measures that the NR Cell signal meets the Addition condition of a Secondary Cell Group (SCG), sending an SCG Addition Request (SCG Addition Request) to the NR Cell, wherein the SCG Addition Request carries master eNodeB Resource Coordination Information (MeNB Resource Coordination Information), the uplink Coordination Information (UL Coordination Information) of the uplink Resource is filled according to the current load state of the Cell in the step three, and the downlink Resource is all PRB resources of the Cell.

After receiving the SCG Addition Request carrying the MeNB Resource Coordination Information, the NR cell firstly judges whether an A frequency band PRB is contained or not according to the UL Coordination Information, if not, the NR cell can distribute all PRB resources in downlink, otherwise, the NR cell can use the PRB to remove the A' frequency band in the step 2;

the NR cell judges whether the uplink of the NR cell and the LTE can be simultaneously transmitted according to the UL coding Information, if not, all uplink PRB resources of the NR cell are allocated to be used for scheduling, otherwise, the uplink frequency domain resources are allocated according to the result in the step 3; and when the uplink conflicts and the allocated uplink resources are full bandwidth, the NR cell preferentially avoids the B frequency band through scheduling.

In summary, the embodiment of the present application provides a resource allocation method on an LTE cell side, and referring to fig. 4, the method includes:

s101, initiating a new air interface wireless interface protocol architecture dual-connection EN-DC establishment request to a base station where a new wireless NR cell is located, and receiving an EN-DC establishment response message fed back by the NR cell; for example, step one of the first embodiment of the present application;

s102, determining a first frequency band generating second harmonic interference to the NR cell according to the EN-DC establishment response message; the method can be implemented according to the second step in the embodiment of the application;

s103, according to the uplink bandwidth of the LTE cell and the first frequency band, allocating PRB resources of an EN-DC user uplink physical resource block, and notifying resource allocation information to the NR cell.

Accordingly, an embodiment of the present application provides a resource allocation method on an NR cell side, and referring to fig. 5, the method includes:

s201, receiving an EN-DC establishment request initiated by an LTE cell;

s202, determining a second frequency band generating intermodulation interference to the LTE cell according to wireless mode information in wireless service cell information in the EN-DC establishment request;

and S203, allocating EN-DC user uplink PRB resources according to the uplink PRB occupancy rate of the NR cell and the second frequency band.

An embodiment of the present application provides a resource allocation apparatus on an LTE cell side, and referring to fig. 6, the apparatus includes:

a first unit 11, configured to initiate a new air interface wireless interface protocol architecture dual-connection EN-DC establishment request to a base station where a new wireless NR cell is located by an LTE cell, and receive an EN-DC establishment response message fed back by the NR cell;

a second unit 12, configured to determine, according to the EN-DC establishment response message, a first frequency band that generates second harmonic interference to an NR cell;

a third unit 13, configured to perform, according to the uplink bandwidth of the LTE cell and the first frequency band, PRB resource allocation on an EN-DC user uplink physical resource block, and notify resource allocation information to an NR cell.

Accordingly, an embodiment of the present application provides a resource allocation apparatus on the NR cell side, and referring to fig. 7, the apparatus includes:

a first unit 21, configured to receive, by an NR cell, an EN-DC establishment request initiated by an LTE cell;

a second unit 22, configured to determine, according to radio mode information in the radio serving cell information in the EN-DC establishment request, a second frequency band that generates intermodulation interference with an LTE cell;

and a third unit 23, configured to perform EN-DC user uplink PRB resource allocation according to the uplink PRB occupancy of the NR cell and the second frequency band.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.

The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used for storing a program of any one of the methods provided by the embodiments of the present application.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.

On the LTE cell side, an embodiment of the present application provides a resource allocation apparatus, see fig. 8, including:

the processor 500, which is used to read the program in the memory 520, executes the following processes:

initiating a new air interface wireless interface protocol architecture dual-connection EN-DC establishment request to a base station where a new wireless NR cell is located, and receiving an EN-DC establishment response message fed back by the NR cell through a transceiver 510;

according to the uplink bandwidth of the LTE cell and the first frequency band, the resource allocation of an EN-DC user uplink physical resource block PRB is carried out, and the resource allocation information is notified to the NR cell through a transceiver 510.

Optionally, the allocating, by the processor 500, the EN-DC user uplink PRB resources according to the LTE cell uplink bandwidth and the first frequency band specifically includes:

periodically counting the uplink PRB occupancy rate of the LTE cell;

On the NR cell side, the processor 500 performs the following procedure:

receiving, by the transceiver 510, an EN-DC setup request initiated by an LTE cell;

Optionally, the processor 500 performs EN-DC user uplink PRB resource allocation according to the uplink PRB occupancy of the NR cell and the second frequency band, which specifically includes:

periodically counting the occupancy rate of the uplink PRB of the NR cell;

Optionally, the processor 500 may further determine resource allocation information of the LTE cell, and allocate an NR cell available resource according to the resource allocation information of the LTE cell.

Optionally, the processor 500 allocates the NR cell available resource according to the resource allocation information of the LTE cell, and specifically includes:

A transceiver 510 for receiving and transmitting data under the control of the processor 500.

Where in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

The method provided by the embodiment of the application can be applied to terminal equipment and also can be applied to network equipment.

The Terminal device may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks through a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.

A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.

The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

To sum up, the embodiment of the present application dynamically determines, according to the EN-DC X2 Setup process, an uplink transmission frequency band B in which the frequency band range A, NR where the second harmonic of the LTE uplink may affect NR is affected by the second harmonic, and the NR generates intermodulation interference, then dynamically adjusts the uplink PRB range of the EN-DC user according to the uplink load of the LTE cell, and avoids the frequency band a that may generate the second harmonic when the load is less than the threshold.

An EN-DC user of an LTE cell notifies uplink Resource allocation information of the LTE cell to an NR cell through an SCG Addition Request process during double connection establishment, the NR cell can determine downlink PRB Resource allocation and frequency domain scheduling priority (whether to avoid an A' frequency band) of the user according to an MeNB Resource Coordination information in the SCG Addition Request, the NR cell preferentially avoids cross-modulation interference through a time domain, and when the time domain cannot be avoided, the NR cell performs frequency domain Resource allocation or dynamic scheduling to avoid a frequency band B according to an uplink load state of the LTE cell and uplink Resource information of the LTE cell carried in the SCG Addition Request process, and avoids the influence of the cross-modulation interference as far as possible.

Therefore, the time-frequency resources of EN-DC users are adaptively allocated through the interaction of the X2 interface, and the influence of second harmonic and intermodulation interference of the terminal is avoided. Compared with the prior art, the method and the device have the advantages that manual configuration is not needed, a large amount of user-level scheduling information is not needed to be dynamically interacted at an X2 port, a terminal single-sending mode is not needed to be repeatedly configured by an air interface RRC signaling, the maximum utilization of air interface resources is realized, the change of the existing scheduling time sequence and queuing algorithm of a product is minimum, and no mandatory requirement is provided for whether the product uses a plurality of carrier combined schedulers.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for resource allocation, the method comprising:

initiating a new air interface wireless interface protocol architecture dual-connection EN-DC establishment request to a base station where a new wireless NR cell is located, and receiving an EN-DC establishment response message fed back by the NR cell;

according to the uplink bandwidth of the LTE cell and the first frequency band, allocating PRB resources of an EN-DC user uplink physical resource block, and notifying resource allocation information to an NR cell;

the allocating the EN-DC user uplink PRB resources according to the LTE cell uplink bandwidth and the first frequency band specifically comprises the following steps:

periodically counting the uplink PRB occupancy rate of the LTE cell;

2. The method of claim 1, wherein in the otherwise case, further comprising: and preferentially scheduling non-EN-DC users to the first frequency band when the LTE cell schedules.

3. A method for resource allocation, the method comprising:

receiving an EN-DC establishment request initiated by an LTE cell;

carrying out EN-DC user uplink PRB resource allocation according to the uplink PRB occupancy rate of the NR cell and the second frequency band;

the method for allocating the EN-DC user uplink PRB resources according to the uplink PRB occupancy rate of the NR cell and the second frequency band specifically comprises the following steps:

periodically counting the occupancy rate of the uplink PRB of the NR cell;

4. The method of claim 3, further comprising:

5. The method of claim 4, wherein determining resource allocation information of an LTE cell and allocating resources available to an NR cell according to the resource allocation information of the LTE cell specifically comprises:

6. The method of claim 5, wherein allocating the resources available to the NR cell according to the resource allocation information of the LTE cell further comprises:

7. The method of claim 6, wherein when uplink PRBs are allocated to uplink users in the NR cell according to the occupancy of uplink PRBs in the NR cell, and the allocated uplink resources are full bandwidth, it is determined that the uplink resources in the NR cell preferentially avoid the second frequency band.

8. An apparatus for resource allocation, the apparatus comprising:

a third unit, configured to perform EN-DC user uplink physical resource block PRB resource allocation according to a long term evolution LTE cell uplink bandwidth and the first frequency band, and notify resource allocation information to an NR cell;

periodically counting the uplink PRB occupancy rate of the LTE cell;

9. The apparatus of claim 8, wherein in the otherwise case, the apparatus further comprises:

10. An apparatus for resource allocation, the apparatus comprising:

a third unit, configured to perform EN-DC user uplink PRB resource allocation according to the uplink PRB occupancy of the NR cell and the second frequency band;

periodically counting the occupancy rate of the uplink PRB of the NR cell;

11. The apparatus of claim 10, further comprising:

12. The apparatus of claim 11, wherein determining resource allocation information of an LTE cell and allocating resources available for an NR cell according to the resource allocation information of the LTE cell specifically comprises:

13. The apparatus of claim 12, wherein the allocating NR cell available resources according to the resource allocation information of the LTE cell further comprises:

14. The apparatus of claim 13, wherein when uplink PRBs are allocated to NR cell uplink users according to an occupancy of NR cell uplink PRBs, and the allocated uplink resources are full bandwidth, it is determined that the NR cell uplink resources preferentially avoid the second frequency band.

15. A computing device, comprising:

a memory for storing program instructions;

a processor for calling program instructions stored in said memory to perform the method of any of claims 1 to 7 in accordance with the obtained program.

16. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 7.