CN111465043A - Resource allocation method and device - Google Patents

Resource allocation method and device Download PDF

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Publication number
CN111465043A
CN111465043A CN201910059134.3A CN201910059134A CN111465043A CN 111465043 A CN111465043 A CN 111465043A CN 201910059134 A CN201910059134 A CN 201910059134A CN 111465043 A CN111465043 A CN 111465043A
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cell
uplink
frequency band
prb
resource allocation
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CN111465043B (en
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刘华玲
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The resource allocation method comprises the steps of initiating 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, 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, carrying out EN-DC user uplink Physical Resource Block (PRB) resource allocation according to long-term evolution L TE cell uplink bandwidth and the first frequency band, and notifying 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 case of a fifth Generation (5th-Generation) non-independent (non Stand Alone, NSA) networking scenario, when the L TE and NR transceiving links simultaneously operate, there is self-interference of transceiving signals between multiple frequency bands.
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.
Taking the two frequency components f1 and f2 as an example, the output will include second-order intermodulation (f1 + -f 2), third-order intermodulation (2f1 + -f 2, f1 + -2 f2), etc. if the intermodulation products fall into the receiving band, the intermodulation interference will be caused, which will occur in the high-low frequency concurrency scenario, the external signal will be poured into the UE (User Equipment terminal) transmitting link scenario, etc., such as L TE and 5G data concurrence, L TE signaling and 5G data concurrence, etc. the second-order distortion amplitude in the intermodulation distortion is the largest, the higher the order distortion amplitude is smaller, and generally the influence caused by the intermodulation distortion amplitude smaller in the third order or higher in the most scenarios can be ignored.
The principle of harmonic interference and intermodulation interference is shown in fig. 1, according to the analysis of the Frequency bands of the current L TE and NR, taking the Frequency Division multiplexing (FDD) 1.8G actually used Frequency bands (uplink 1735-.
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.
At L TE cell side, a resource allocation method provided in an embodiment of the present application includes:
initiating an Evolved Universal Terrestrial Radio Access (E-UTRA-NRDual 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 according to the uplink bandwidth of the long-term evolution L TE 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.
L the EN-DC establishes NR Mode information (NR-Mode-Info) of the serving NR cell information (Served NR CellInformation) in the response message of the TE cell to obtain the TDD/FDD system and the cell working frequency band of the EN-DC neighboring cell, and further judges a first frequency band A of the frequency band where L the TE cell 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 is utilized, and response information of the new air interface wireless interface protocol architecture double-connection EN-DC establishment request determines a first frequency band generating second harmonic interference on the NR cell, an L TE 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.
Optionally, the allocating the EN-DC user uplink PRB resources according to the L TE cell uplink bandwidth and the first frequency band specifically includes:
periodically counting L TE cell uplink PRB occupancy rate;
when the occupancy rate of the upstream PRB of the L TE cell is smaller than (L TE cell upstream bandwidth-the first frequency band)/(cell upstream bandwidth-the protection margin of the first frequency band), determining that the upstream schedulable PRB of the EN-DC user is the surplus resource of the first frequency band;
otherwise, determining that the EN-DC user uplink schedulable PRB is all PRB resources of L TE cell.
Optionally, in the case of the else, preferentially scheduling non-EN-DC users to the first frequency band when scheduling in the L TE cell is further included.
On the NR cell side, an embodiment of the present application provides a method for resource allocation, including:
receiving L an EN-DC establishment request initiated by a TE cell;
determining a second frequency band generating intermodulation interference to the L TE 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 Mode of a L TE cell and a cell uplink working frequency band (for the TDD cell, the uplink and downlink Subframe ratio can be further acquired through Subframe allocation) 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 then judges a second frequency band B or an uplink Subframe, which is possibly subjected to cross-modulation interference on a L TE cell, of the NR 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:
determining L the resource allocation information of the TE cell, and allocating the available resource of the NR cell according to the resource allocation information of the L TE 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 L resource allocation information of the TE cell, and allocating available resources of the NR cell according to the resource allocation information of the L TE cell, specifically including:
determining L resource allocation information of a TE cell by receiving a secondary cell group Addition Request SCG Addition Request sent by an EN-DC user;
determining that PRB containing a first frequency band exists according to the resource allocation information of the L TE cell, wherein the first frequency band is a frequency band generating second harmonic interference on 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 L TE cell, specifically further includes:
determining whether the uplink of the NR cell and the uplink of the L TE cell simultaneously transmit data according to the resource allocation information of the L TE cell;
when the NR cell uplink does not send data simultaneously with the L TE cell uplink, allocating all uplink PRBs to NR cell uplink users;
and when the NR cell uplink and the L TE cell uplink simultaneously transmit data, allocating uplink PRBs to the 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 the L TE cell side, an embodiment of the present application provides a resource allocation apparatus, including:
a first unit, configured to initiate, by an L TE cell, 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 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 a third unit, configured to perform EN-DC user uplink physical resource block PRB resource allocation according to the uplink bandwidth of the long term evolution L TE cell and the first frequency band, and notify resource allocation information to an NR cell.
Optionally, the allocating the EN-DC user uplink PRB resources according to the L TE cell uplink bandwidth and the first frequency band specifically includes:
periodically counting L TE cell uplink PRB occupancy rate;
when the occupancy rate of the upstream PRB of the L TE cell is smaller than (L TE cell upstream bandwidth-the first frequency band)/(cell upstream bandwidth-the protection margin of the first frequency band), determining that the upstream schedulable PRB of the EN-DC user is the surplus resource of the first frequency band;
otherwise, determining that the EN-DC user uplink schedulable PRB is all PRB resources of L TE 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 scheduling in the L TE cell.
Correspondingly, on the NR cell side, an embodiment of the present application provides a resource allocation apparatus, including:
a first unit, configured to receive L an EN-DC establishment request initiated by a TE cell by an NR cell;
a second unit, 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 L TE 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.
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 apparatus further comprises:
a fourth unit, configured to determine L resource allocation information of the TE cell, and allocate the NR cell available resources according to the L resource allocation information of the TE cell.
Optionally, determining L resource allocation information of the TE cell, and allocating available resources of the NR cell according to the resource allocation information of the L TE cell, specifically including:
determining L resource allocation information of a TE cell by receiving a secondary cell group Addition Request SCG Addition Request sent by an EN-DC user;
determining that PRB containing a first frequency band exists according to the resource allocation information of the L TE cell, wherein the first frequency band is a frequency band generating second harmonic interference on 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 L TE cell, specifically further includes:
determining whether the uplink of the NR cell and the uplink of the L TE cell simultaneously transmit data according to the resource allocation information of the L TE cell;
when the NR cell uplink does not send data simultaneously with the L TE cell uplink, allocating all uplink PRBs to NR cell uplink users;
and when the NR cell uplink and the L TE cell uplink simultaneously transmit data, allocating uplink PRBs to the 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.
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 the L TE 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 the L TE 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 X2Setup process and the main eNodeB resource coordination information carried by the X2 user auxiliary cell group addition request message for establishing double connection by a user, 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.
For example, the applicable system may be a global system for mobile communications (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 (L TE) system, a L TE Frequency Division Duplex (FDD) system, a L TE Time Division Duplex (TDD), a universal mobile system (universal mobile telecommunications system, UMTS), a universal internet Access (WiMAX) system, a WiMAX 5G system, and the like, including various microwave NR systems, WiMAX 5G systems, and UMTS systems.
In a different system, the name of the terminal device may also be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE), the wireless terminal device may communicate with one or more core networks via a RAN, and the wireless terminal device may be a mobile terminal device such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device that exchanges voice and/or data with a wireless access network.
The network device according to the embodiment of the present application may be a base station, which may include multiple cells, and depending on a specific application, the base station may also be referred to as an access point, or may refer to a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named otherwise, the network device may be configured to convert a received air frame and an Internet Protocol (IP) packet into each other as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network, and the network device may also coordinate attribute management of the air interface, for example, the network device according to the embodiment of the present application may be a network device (base transceiver station, BTS) in a global system for mobile communications (GSM) or a code division multiple access (code division multiple access) network, or a CDMA) in a home evolved node B (cellular) network, a base station (WCDMA) or a home evolved node B-B network (node B) in an embodiment, or a home evolved node B-evolution network (node B) network, or a wireless network, a wireless.
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 L TE and NR cells are subjected to combined scheduling, the scheduling is carried out by considering the terminal interference harmonic relation during the scheduling, and PRBs which are possibly interfered or cause interference are dynamically avoided.
In practical application in an external field, the schemes have certain disadvantages, so that the scheme provides a method for interactively adjusting NR and L TE frequency domain Resource allocation through an X2 interface to avoid interference, the scheme has little change on L TE and NR existing scheduling algorithms, only utilizes the existing EN-DC X2Setup process and MeNB Resource Coordination Information carried by an X2 user SGNB ADDITION REQUEST message for establishing double connection with a user (see 9.2.116 of a protocol 36.423), does not need additional user-level periodic X2 interface 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:
step one, an L TE cell judges whether the EN-DC function is started or not, if not, a terminal self-interference suppression algorithm does not need to be considered, otherwise, a base station where a L TE 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;
step two, the L TE cell acquires the TDD/FDD Mode and the cell working frequency band of the EN-DC adjacent cell according to the NR Mode information (NR-Mode-Info) of the NR service cell information (Served NR CellInformation) in the EN-DC X2 establishment response, and further judges the frequency band A of the L TE cell which may generate second harmonic interference to the NR cell.
The NR cell acquires a TDD/FDD Mode of a L TE 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 CellInformation) in an EN-DC X2 establishment request, and further judges a frequency band B or an uplink subframe in which the NR cell may generate intermodulation interference to a L TE cell.
For example, L TE uses FDD 1.8G frequency band (uplink 1735-:
l the range A of the downlink receiving frequency band where the second harmonic wave of the TE uplink can affect NR is 3500<2f <3600, namely A belongs to 1750-1755, and the range A' where NR is responded is 3500-3510;
if the frequency band range B of NR and L TE uplink transmission which can influence downlink receiving of L TE 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.
And step three, the L TE cell periodically counts the occupancy rate of the uplink PRB of the cell, if the occupancy rate of the PRB is less than (the uplink bandwidth of the cell-frequency band A)/the uplink bandwidth of the cell-delta, the uplink PRB of the EN-DC user can be scheduled to be the resource of the eliminated frequency band A, and the delta is the protection margin, otherwise, the uplink PRB of the EN-DC user can be scheduled to be all the PRB resources of the cell, and the non-EN-DC user is preferentially scheduled to the frequency band A during the scheduling of the L TE cell.
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 (U L 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 U L 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;
and the NR cell judges whether the uplink is transmitted simultaneously with the L TE according to the U L coding Information, if not, all cell uplink PRB resources are allocated 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 the L TE 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 L TE 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 L EN-DC establishment request initiated by a TE cell;
s202, determining a second frequency band generating intermodulation interference to the L TE 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.
The embodiment of the present application provides a resource allocation apparatus on the side of L TE cell, referring to fig. 6, the apparatus includes:
a first unit 11, configured to initiate, by an L TE cell, 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 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 an uplink bandwidth of an L TE long term evolution cell and the first frequency band, enb-DC user uplink physical resource block PRB resource allocation, 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 L an EN-DC establishment request initiated by a TE cell by an NR 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 the L TE 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.
Embodiments of the present application provide a computing device, which may be specifically a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), etc., the computing device may include a Central Processing Unit (CPU), a memory, an input/output device, etc., the input device may include a keyboard, a mouse, a touch screen, etc., and the output device may include a Display device, such as a liquid Crystal Display (L liquid Crystal Display, L CD), 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 L TE 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;
determining a first frequency band generating second harmonic interference to the NR cell according to the EN-DC establishment response message;
according to the uplink bandwidth of the long term evolution L TE 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 through a transceiver 510.
Optionally, the allocating, by the processor 500, the EN-DC user uplink PRB resources according to the L TE cell uplink bandwidth and the first frequency band specifically includes:
periodically counting L TE cell uplink PRB occupancy rate;
when the occupancy rate of the upstream PRB of the L TE cell is smaller than (L TE cell upstream bandwidth-the first frequency band)/(cell upstream bandwidth-the protection margin of the first frequency band), determining that the upstream schedulable PRB of the EN-DC user is the surplus resource of the first frequency band;
otherwise, determining that the EN-DC user uplink schedulable PRB is all PRB resources of L TE cell.
Optionally, in the case of the else, preferentially scheduling non-EN-DC users to the first frequency band when scheduling in the L TE cell is further included.
On the NR cell side, the processor 500 performs the following procedure:
receiving L a TE cell initiated EN-DC setup request through transceiver 510;
determining a second frequency band generating intermodulation interference to the L TE 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.
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;
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 processor 500 can further determine L resource allocation information of the TE cell and allocate the NR cell available resources according to the L resource allocation information of the TE cell.
Optionally, determining L resource allocation information of the TE cell, and allocating available resources of the NR cell according to the resource allocation information of the L TE cell, specifically including:
determining L resource allocation information of a TE cell by receiving a secondary cell group Addition Request SCG Addition Request sent by an EN-DC user;
determining that PRB containing a first frequency band exists according to the resource allocation information of the L TE cell, wherein the first frequency band is a frequency band generating second harmonic interference on 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, the processor 500 allocates available resources of the NR cell according to the resource allocation information of the L TE cell, and specifically includes:
determining whether the uplink of the NR cell and the uplink of the L TE cell simultaneously transmit data according to the resource allocation information of the L TE cell;
when the NR cell uplink does not send data simultaneously with the L TE cell uplink, allocating all uplink PRBs to NR cell uplink users;
and when the NR cell uplink and the L TE cell uplink simultaneously transmit data, allocating uplink PRBs to the 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.
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 (CP L D).
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 F L ASH), 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.
The base Station may also coordinate management of attributes for the air interface.A base Station may be, for example, a base Station in GSM or CDMA (BTS), a base Station in WCDMA (NodeB), an evolved Node B in L TE (NodeB or eNB or e-NodeB), or a gNB in a 5G system.
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 L the frequency band range A, NR where the second harmonic of the TE uplink may affect NR, and the uplink transmission frequency band B where the NR generates intermodulation interference, according to the EN-DC X2Setup process, and then dynamically adjusts the uplink PRB range of the EN-DC user according to the uplink load of the L TE cell, and when the load is less than the threshold, the frequency band a that may generate the second harmonic is avoided.
L EN-DC users of TE cells inform the uplink resource allocation information of L TE cells to NR cells through the SCG Addition Request process when double connection is established, the NR cells can determine the downlink PRB resource allocation and frequency domain scheduling priority (whether to avoid the A' frequency band) of the users according to the MeNBResource scheduling information in the SCG Addition Request, the NR cells preferentially avoid the cross-modulation interference through the time domain, and when the time domain cannot be avoided, the NR cells carry out frequency domain resource allocation or dynamic scheduling to avoid the frequency band B according to the uplink load state of L TE cells and the uplink resource information of L TE cells carried in the SCG Addition Request process, and the influence of the cross-modulation interference is avoided.
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 (20)

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;
determining a first frequency band generating second harmonic interference to the NR cell according to the EN-DC establishment response message;
and according to the uplink bandwidth of the long-term evolution L TE 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.
2. The method according to claim 1, wherein the allocating EN-DC user uplink PRB resources according to L TE cell uplink bandwidth and the first frequency band specifically comprises:
periodically counting L TE cell uplink PRB occupancy rate;
when the occupancy rate of the upstream PRB of the L TE cell is smaller than (L TE cell upstream bandwidth-the first frequency band)/(cell upstream bandwidth-the protection margin of the first frequency band), determining that the upstream schedulable PRB of the EN-DC user is the surplus resource of the first frequency band;
otherwise, determining that the EN-DC user uplink schedulable PRB is all PRB resources of L TE cell.
3. The method of claim 2, wherein the otherwise further comprising prioritizing scheduling non-EN-DC users to the first frequency band when scheduled by an L TE cell.
4. A method for resource allocation, the method comprising:
receiving L an EN-DC establishment request initiated by a TE cell;
determining a second frequency band generating intermodulation interference to the L TE 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.
5. The method according to claim 4, wherein the allocating EN-DC user uplink PRB resources according to the uplink PRB occupancy of the NR cell and the second frequency band specifically comprises:
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.
6. The method of claim 4, further comprising:
determining L the resource allocation information of the TE cell, and allocating the available resource of the NR cell according to the resource allocation information of the L TE cell.
7. The method of claim 6, wherein the determining L resource allocation information of the TE cell and allocating the resources available to the NR cell according to the L resource allocation information of the TE cell specifically comprises:
determining L resource allocation information of a TE cell by receiving a secondary cell group Addition Request SCG Addition Request sent by an EN-DC user;
determining that PRB containing a first frequency band exists according to the resource allocation information of the L TE cell, wherein the first frequency band is a frequency band generating second harmonic interference on 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.
8. The method according to claim 7, wherein allocating resources available to an NR cell according to the resource allocation information of the L TE cell further comprises:
determining whether the uplink of the NR cell and the uplink of the L TE cell simultaneously transmit data according to the resource allocation information of the L TE cell;
when the NR cell uplink does not send data simultaneously with the L TE cell uplink, allocating all uplink PRBs to NR cell uplink users;
and when the NR cell uplink and the L TE cell uplink simultaneously transmit data, allocating uplink PRBs to the NR cell uplink users according to the NR cell uplink PRB occupancy rate.
9. The method of claim 8, 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.
10. An apparatus for resource allocation, the apparatus comprising:
a first unit, configured to initiate, by an L TE cell, 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 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 a third unit, configured to perform EN-DC user uplink physical resource block PRB resource allocation according to the uplink bandwidth of the long term evolution L TE cell and the first frequency band, and notify resource allocation information to an NR cell.
11. The apparatus of claim 10, wherein the allocating upstream PRB resources for EN-DC users according to the upstream bandwidth of the L TE cell and the first frequency band specifically comprises:
periodically counting L TE cell uplink PRB occupancy rate;
when the occupancy rate of the upstream PRB of the L TE cell is smaller than (L TE cell upstream bandwidth-the first frequency band)/(cell upstream bandwidth-the protection margin of the first frequency band), determining that the upstream schedulable PRB of the EN-DC user is the surplus resource of the first frequency band;
otherwise, determining that the EN-DC user uplink schedulable PRB is all PRB resources of L TE cell.
12. The apparatus of claim 11, wherein in the otherwise case, the apparatus further comprises:
a fourth unit, configured to preferentially schedule non-EN-DC users to the first frequency band when scheduling in the L TE cell.
13. An apparatus for resource allocation, the apparatus comprising:
a first unit, configured to receive L an EN-DC establishment request initiated by a TE cell by an NR cell;
a second unit, 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 L TE 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.
14. The apparatus according to claim 13, wherein the performing EN-DC user uplink PRB resource allocation 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.
15. The apparatus of claim 13, further comprising:
a fourth unit, configured to determine L resource allocation information of the TE cell, and allocate the NR cell available resources according to the L resource allocation information of the TE cell.
16. The apparatus of claim 15, wherein the determining L resource allocation information of the TE cell, and allocating the NR cell available resources according to the L resource allocation information of the TE cell comprises:
determining L resource allocation information of a TE cell by receiving a secondary cell group Addition Request SCG Addition Request sent by an EN-DC user;
determining that PRB containing a first frequency band exists according to the resource allocation information of the L TE cell, wherein the first frequency band is a frequency band generating second harmonic interference on 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.
17. The apparatus of claim 16, wherein the allocating resources available to the NR cell according to the resource allocation information of the L TE cell further comprises:
determining whether the uplink of the NR cell and the uplink of the L TE cell simultaneously transmit data according to the resource allocation information of the L TE cell;
when the NR cell uplink does not send data simultaneously with the L TE cell uplink, allocating all uplink PRBs to NR cell uplink users;
and when the NR cell uplink and the L TE cell uplink simultaneously transmit data, allocating uplink PRBs to the NR cell uplink users according to the NR cell uplink PRB occupancy rate.
18. The apparatus of claim 17, 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.
19. 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 9 in accordance with the obtained program.
20. 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 9.
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