CN113453369B - Resource scheduling-free method, device and base station in electric wireless private network - Google Patents
Resource scheduling-free method, device and base station in electric wireless private network Download PDFInfo
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- CN113453369B CN113453369B CN202010230461.3A CN202010230461A CN113453369B CN 113453369 B CN113453369 B CN 113453369B CN 202010230461 A CN202010230461 A CN 202010230461A CN 113453369 B CN113453369 B CN 113453369B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0038—Blind format detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The application provides a resource scheduling-free method, a resource scheduling-free device and a resource scheduling-free base station in a power wireless private network, wherein the method comprises the following steps: if the uplink scheduling-free resource of the target terminal needs to be changed, the uplink scheduling-free resource of the target terminal is reconfigured, and the reconfigured result is used as the uplink scheduling-free resource to be updated; after the uplink scheduling-free resource of the target terminal is reconfigured, determining the RB initial position and the changed RB number of the target terminal; sending RRC reconfiguration information to a target terminal; after receiving the RRC reconfiguration feedback message of the target terminal, respectively sending a change message containing the RB initial position and the changed RB number of the target terminal to the target terminal and other terminals. In the present application, the reliability of the scheduling-free technique can be improved in the above manner.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a resource scheduling-free method, device, and base station in an electric wireless private network.
Background
In order to meet the requirement of constructing an electric energy information acquisition and monitoring system of an electric power system, the national radio management committee stipulates that 40 frequency points which can be used by a power private network are discretely distributed in 223 MHz-235 MHz frequency bands, and the bandwidth of each frequency point is 25 kHz. The accurate load control service in the power wireless private network service + is a key service for improving the economy and safety of power grid operation, and the downlink one-way communication time delay of the accurate load control service is required to be not more than 50 milliseconds.
In order to effectively reduce the communication delay of the precise load Control service, a scheduling-free technology, that is, RRC (Radio Resource Control) may be adopted to configure time-frequency resources, scheduling periods, and the like required for scheduling for the UE (user equipment), and the UE directly transmits or receives data on the resources configured by the RRC without sending a DCI message by the MAC.
However, how to improve the reliability of the scheduling-free technique becomes a problem.
Disclosure of Invention
In order to solve the foregoing technical problems, embodiments of the present application provide a method, an apparatus, and a base station for scheduling-free resources in a wireless power private network, so as to achieve the purpose of improving reliability of a scheduling-free technology, and the technical solution is as follows:
a resource scheduling-free method in a power wireless private network is applied to a base station, and comprises the following steps:
if the uplink scheduling-free resource of the target terminal needs to be changed, the uplink scheduling-free resource of the target terminal is reconfigured, the reconfiguration result is used as the uplink scheduling-free resource to be updated, and the target terminal is a certain terminal in the coverage area of the base station;
after the uplink scheduling-free resource of the target terminal is reconfigured, determining the RB initial position and the changed RB number of the target terminal;
sending an RRC reconfiguration message to the target terminal, wherein the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration effective mark, and the scheduling-free resource configuration effective mark is set to be invalid and is used for indicating that the target terminal does not activate the uplink scheduling-free resource to be updated;
after receiving the RRC reconfiguration feedback message of the target terminal, respectively sending a change message containing the RB starting position of the target terminal and the changed RB number to the target terminal and other terminals, wherein the change message is used for indicating each terminal to adjust the RB starting position of each terminal, and after the RB starting position of each terminal is adjusted, the target terminal activates the uplink scheduling-free resource to be updated.
Preferably, the method further comprises:
and setting a blind retransmission time upper limit of uplink scheduling-free resources for each terminal in the coverage area of the base station, so that each terminal in the coverage area of the base station automatically performs blind retransmission under the condition that the terminal does not receive the ACK message fed back by the base station until the ACK message fed back by the base station is received or the blind retransmission time reaches the blind retransmission time upper limit.
Preferably, if the target terminal receives an ACK message fed back by the base station after sending data on the uplink scheduling-free resource to be updated, the base station issues a DCI message to another terminal except the target terminal, so as to instruct the another terminal except the target terminal to send data by using the uplink scheduling-free resource to be updated.
A resource scheduling-free method in a power wireless private network is applied to a base station, and comprises the following steps:
if the downlink scheduling-free resource of the target terminal needs to be changed, the downlink scheduling-free resource of the target terminal is reconfigured, and the reconfiguration result is used as the downlink scheduling-free resource to be updated;
and sending an RRC reconfiguration message to the target terminal, wherein the RRC reconfiguration message carries the downlink scheduling-free resource to be updated and a scheduling-free resource configuration effective mark, and the scheduling-free resource configuration effective mark is set to be effective and is used for indicating the target terminal to immediately activate the downlink scheduling-free resource to be updated.
Preferably, the method further comprises:
and if the base station receives an ACK message fed back after the target terminal receives data on the downlink scheduling-free resource to be updated, the base station sends a DCI message to a certain terminal except the target terminal for indicating another terminal except the target terminal to receive the data by using the downlink scheduling-free resource to be updated.
A resource scheduling-free device in a power wireless private network is applied to a base station and comprises:
an uplink scheduling-free resource reconfiguration module, configured to reconfigure an uplink scheduling-free resource of a target terminal if the uplink scheduling-free resource of the target terminal needs to be changed, where a reconfiguration result is used as the uplink scheduling-free resource to be updated, and the target terminal is a certain terminal in a coverage area of the base station;
a first determining module, configured to determine an RB starting position and a changed RB number of the target terminal after reconfiguration is performed on an uplink scheduling-free resource of the target terminal;
a first sending module, configured to send an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration validation flag, and the scheduling-free resource configuration validation flag is set to be invalid and is used to indicate that the target terminal does not activate the uplink scheduling-free resource to be updated;
and the second sending module is used for respectively sending a change message containing the RB starting position of the target terminal and the changed RB number to the target terminal and other terminals after receiving the RRC reconfiguration feedback message of the target terminal, wherein the change message is used for indicating each terminal to adjust the RB starting position of each terminal, and activating the uplink scheduling-free resource to be updated after the target terminal adjusts the RB starting position of each terminal.
Preferably, the apparatus further comprises:
and the setting module is used for setting the upper limit of the blind retransmission times of the uplink scheduling-free resources for each terminal in the coverage area of the base station, so that each terminal in the coverage area of the base station automatically performs blind retransmission under the condition that the terminal does not receive the ACK message fed back by the base station until the ACK message fed back by the base station is received or the blind retransmission times reach the upper limit of the blind retransmission times.
Preferably, the apparatus further comprises:
a first sending module, configured to send a DCI message to another terminal except the target terminal if the target terminal receives an ACK message fed back by the base station after sending data on the uplink scheduling-free resource to be updated, so as to instruct the another terminal except the target terminal to send data using the uplink scheduling-free resource to be updated.
A resource scheduling-free device in a power wireless private network is applied to a base station and comprises:
a downlink scheduling-free resource reconfiguration module, configured to reconfigure the downlink scheduling-free resource of the target terminal if the downlink scheduling-free resource of the target terminal needs to be changed, where a reconfiguration result is used as the downlink scheduling-free resource to be updated;
a third sending module, configured to send an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the downlink scheduling-free resource to be updated and a scheduling-free resource configuration validation flag, and the scheduling-free resource configuration validation flag is set to be valid, and is used to instruct the target terminal to immediately activate the downlink scheduling-free resource to be updated.
Preferably, the apparatus further comprises:
and a second issuing module, configured to issue a DCI message to a certain terminal except the target terminal if the base station receives an ACK message fed back after the target terminal receives data on the downlink scheduling-free resource to be updated, so as to instruct another terminal except the target terminal to receive the data by using the downlink scheduling-free resource to be updated.
A base station, comprising: a processor, a memory, and a data bus through which the processor and the memory communicate;
the memory is used for storing programs;
the processor is configured to execute the resource non-scheduling method in the wireless private power network according to the program stored in the memory.
A base station, comprising: a processor, a memory, and a data bus through which the processor and the memory communicate;
the memory is used for storing programs;
the processor is configured to execute any one of the foregoing resource scheduling-free methods in the wireless private network according to the program stored in the memory.
Compared with the prior art, the beneficial effect of this application is:
in the application, in the process of implementing the scheduling-free method, if the uplink scheduling-free resource of the target terminal needs to be changed, after the uplink scheduling-free resource of the target terminal is reconfigured, the change result of the RB starting position of each terminal is determined, and an RRC reconfiguration message is sent to the target terminal, wherein a scheduling-free resource configuration validation flag in the RRC reconfiguration message is invalid, the target terminal is instructed not to activate the uplink scheduling-free resource to be updated, so as to avoid the conflict of the uplink scheduling-free resource between terminals caused by the target terminal activating the uplink scheduling resource to be updated at the moment, and after receiving an RRC reconfiguration feedback message of the target terminal, change messages containing the change result of the RB starting position are respectively sent to the target terminal and each other terminal, and the change messages are used for instructing each terminal to adjust the respective RB starting position, and after the target terminal is adjusted at the RB starting position of each terminal, activating the uplink scheduling-free resources to be updated, and avoiding the conflict among the uplink scheduling-free resources of a plurality of terminals after the uplink scheduling-free resources of the target terminal are changed, so as to improve the reliability of the scheduling-free technology.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below 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 flowchart of an embodiment 1 of a resource scheduling-free method in a wireless power private network according to the present application;
fig. 2 is a schematic diagram of RB allocation of a terminal provided in the present application;
fig. 3 is a schematic diagram illustrating a variation of an RB starting location of a terminal provided in the present application;
fig. 4 is a flowchart of an embodiment 2 of a resource scheduling-free method in a wireless private network according to the present application;
fig. 5 is a flowchart of an embodiment 3 of a resource scheduling-free method in a wireless private network according to the present application;
FIG. 6 is a schematic diagram of resource reclamation provided herein;
fig. 7 is a flowchart of an embodiment 4 of a resource scheduling-free method in a wireless private power network according to the present application;
fig. 8 is a flowchart illustrating a resource scheduling-free method in an electric wireless private network according to embodiment 5 of the present application;
fig. 9 is a schematic logical structure diagram of a resource scheduling-free apparatus in a wireless power private network according to the present application;
fig. 10 is a schematic logical structure diagram of another resource scheduling-free apparatus in a power wireless private network according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 discloses a resource scheduling-free method in a power wireless private network, which is applied to a base station and comprises the following steps: if the uplink scheduling-free resource of the target terminal needs to be changed, the uplink scheduling-free resource of the target terminal is reconfigured, the reconfiguration result is used as the uplink scheduling-free resource to be updated, and the target terminal is a certain terminal in the coverage area of the base station; determining the RB initial position change result of each terminal after the uplink scheduling-free resource of the target terminal is reconfigured; sending an RRC reconfiguration message to the target terminal, wherein the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration effective mark, and the scheduling-free resource configuration effective mark is set to be invalid and is used for indicating that the target terminal does not activate the uplink scheduling-free resource to be updated; and after receiving the RRC reconfiguration feedback message of the target terminal, respectively sending a change message containing the RB initial position change result to the target terminal and other terminals, wherein the change message is used for indicating each terminal to adjust the RB initial position of each terminal, and after the RB initial position of each terminal is adjusted, the target terminal activates the uplink scheduling-free resource to be updated. In the method and the device, after the uplink scheduling-free resources of the target terminal are changed, the conflict among the uplink scheduling-free resources of a plurality of terminals can be avoided, so that the reliability of the scheduling-free technology is improved.
Next, a resource scheduling-free method in an electric wireless private network disclosed in the embodiment of the present application is introduced, which is applied to a base station, as shown in fig. 1, and is a flowchart of embodiment 1 of the resource scheduling-free method in the electric wireless private network provided by the present application, where the method includes the following steps:
step S11, if the uplink scheduling-free resource of the target terminal needs to be changed, performing reconfiguration on the uplink scheduling-free resource of the target terminal, and taking a result of the reconfiguration as the uplink scheduling-free resource to be updated.
The target terminal is a certain terminal in the coverage area of the base station.
In a wireless communication system, the channel environment of wireless communication may be affected by path loss, shadow fading, electromagnetic interference, frequency selective fading, and the like, so that the wireless channel may change. In case of a change of radio channel, the uplink non-scheduling resource of the target terminal may also need to be changed.
The scene of the change of the wireless channel mainly comprises the following steps: after some UE receives signal interference underground, the channel quality is seriously reduced, and the original MCS and blind retransmission can not ensure the correct demodulation of data; or, the strong signal interference is recovered or the data volume is reduced, and the RB resources allocated by the original scheduling-free strategy are too much.
In this embodiment, the target terminal may actively report the requirement that the uplink non-scheduling resource needs to be changed to the base station, and certainly, the base station may also detect whether the uplink non-scheduling resource of the target terminal needs to be changed.
If the uplink scheduling-free resource of the target terminal needs to be changed, the uplink scheduling-free resource of the target terminal can be reconfigured according to the change of the wireless channel of the target terminal, and the reconfigured result is used as the uplink scheduling-free resource to be updated.
The uplink scheduling-free resource can be understood as: uplink resources in the scheduling-free technology, such as time-frequency domain resources and MCS required by the terminal to transmit data.
And step S12, after the uplink scheduling-free resource of the target terminal is reconfigured, determining the RB initial position and the changed RB number of the target terminal.
Generally, the uplink adopts the SC-OFDM protocol, and RBs need to be allocated continuously, so after the uplink scheduling-free resource of the target terminal is reconfigured, the RB resource occupied by the target terminal may change, and after the RB resource occupied by the target terminal changes, the RB resource may conflict with the RB resources of other terminals in the coverage area of the base station, and therefore, the RB start position of each terminal needs to be adjusted to avoid the RB resource conflict between terminals. And the adjustment is based on determining the RB starting position and the changed RB number of the target terminal after the uplink scheduling-free resource of the target terminal is reconfigured.
The varying number of RBs of the target terminal can be understood as: the number of RBs increased or decreased by the target terminal.
The changed RB starting position of each terminal after determining to reconfigure the uplink scheduling-free resource of the target terminal will now be described by way of example. For example, the eNB allocates scheduling-free resources to UEs 1/2/UE 3/UE4 for the first time, and based on the scheduling-free resources allocated by the eNB, the scheduling-free configuration of PUSCH (Physical uplink shared channel)/PDSCH (Physical downlink shared channel) is as shown in fig. 2, where the uplink scheduling-free resources allocated by UE1 are 10 RBs, the uplink scheduling-free resources allocated by UE2 are 4 RBs (i.e., carrier index10-carrier index14 is occupied), the uplink scheduling-free resources allocated by UE3 are 12 RBs, the uplink scheduling-free resources allocated by UE4 are 4 RBs, but subsequently, due to factors such as channel quality change, the number of RBs required by UE2 is changed to 13 RBs, and then unused 9 RBs are reused as added RBs to be used together for UE2, UE 2-carrier index10, and fig. 23.
Step S13, sending an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration validation flag, and the scheduling-free resource configuration validation flag is set to be invalid and is used to indicate that the target terminal does not activate the uplink scheduling-free resource to be updated.
In this embodiment, the scheduling-free resource configuration validation flag is a newly added field in the RRC reconfiguration message.
The scheduling-free resource configuration validation flag is set to be invalid and is used for indicating the target terminal not to activate the uplink scheduling-free resource to be updated, so that the problem that the target terminal activates the uplink scheduling-free resource to be updated at the moment to cause the uplink scheduling-free resource conflict between the terminals can be avoided.
The RRC reconfiguration message including the scheduling exempt resource configuration validate flag may include the following fields:
startCarrierIndex：INTEGER(0..479)；
RBSize:INTEGER(1..16)；
startSFIndex：INTEGER(0..2)；
SFBundleSize：ENUMERATED{sf1，sf2，sf3}；
mcs-Index：INTEGER(0..15)；
repetitionNumber:ENUMERATED{r1，r2，r4，r8，r32，r64，spare}；
Period：ENUMERATED{r2，r4，r8，r16，r32，r64，r128，r256}；
offset：INTEGER(0..255)；
Validation：BOOL(true，false)；
wherein, startCarrier index represents the start index of the free scheduling carrier, starting from the lowest frequency with absolute index; RBSize represents the number of occupied RBs; startSFIndex indicates on which SF transmission is started; SFBundleSize indicates that several SFs are bound together for transmission; the repetition number represents the number of blind retransmissions; period represents a PDSCH/PUSCH transmission Period; offset represents the specific subframe offset position in the transmission period; the validity indicates a validity flag of the allocation of the non-scheduled resource, wherein the validity indicates true (valid) that the non-scheduled resource is immediately valid, and the validity indicates false (invalid) that the non-scheduled resource is not activated.
Step S14, after receiving the RRC reconfiguration feedback message of the target terminal, respectively issuing a change message including the changed RB starting position of each terminal to the target terminal and each other terminal, where the change message is used to instruct each terminal to adjust its RB starting position, and the target terminal activates the uplink scheduling-free resource to be updated after adjusting the RB starting position of each terminal.
And after receiving the RRC reconfiguration message, the target terminal receives the uplink scheduling-free resource to be updated, but does not activate the uplink scheduling-free resource to be updated temporarily, and returns an RRC reconfiguration feedback message to the base station.
And after receiving the RRC reconfiguration feedback message of the target terminal, the base station respectively sends a change message containing the RB initial position and the changed RB number of the target terminal to the target terminal and other terminals.
After each terminal receives the change message, the respective RB starting position can be adjusted according to the RB starting position of the target terminal and the changed number of RBs in the change message. Also, with the RB resource distribution shown in fig. 2, it is possible to describe that after each terminal receives the change message, each terminal can adjust the RB starting position according to the RB starting position of the target terminal and the number of changed RBs in the change message. For example, as shown in fig. 3, based on the RB resources reallocated by the UE2, it may be determined that the RB start position of the UE3 is changed to carrierIndex23 and the RB start position of the UE4 is changed to carrierIndex 35.
Preferably, the type of the change message may be: a DCI (downlink control information) message.
As another optional embodiment of the present application, referring to fig. 4, a flowchart of an embodiment 2 of a method for scheduling resource exemption in an electric wireless private network provided by the present application is provided, where this embodiment mainly relates to an extension scheme of the method for scheduling resource exemption in an electric wireless private network described in the foregoing embodiment 1, and as shown in fig. 4, the method may include, but is not limited to, the following steps:
and step S21, if the uplink scheduling-free resource of the target terminal needs to be changed, reconfiguring the uplink scheduling-free resource of the target terminal, and taking the reconfigured result as the uplink scheduling-free resource to be updated.
The target terminal is a certain terminal in the coverage area of the base station.
Step S22, after the uplink scheduling-free resource of the target terminal is reconfigured, determining the RB starting position and the number of changed RBs of the target terminal.
Step S23, sending an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration validation flag, and the scheduling-free resource configuration validation flag is set to be invalid and is used to indicate that the target terminal does not activate the uplink scheduling-free resource to be updated.
Step S24, after receiving the RRC reconfiguration feedback message of the target terminal, respectively issuing a change message including the RB starting position of the target terminal and the changed number of RBs to the target terminal and each of the other terminals, where the change message is used to instruct each terminal to adjust the RB starting position of each terminal, and after the RB starting position of each terminal is adjusted, the target terminal activates the uplink scheduling-free resource to be updated.
The detailed procedures of steps S21-S24 can be referred to the related descriptions of steps S11-S14 in embodiment 1, and are not described herein again.
Step S25, setting an upper limit of blind retransmission times of the uplink non-scheduling resource for each terminal in the coverage area of the base station, so that each terminal in the coverage area of the base station automatically performs blind retransmission under the condition that it does not receive the ACK message fed back by the base station, until the ACK message fed back by the base station is received or the blind retransmission times reach the upper limit of blind retransmission times.
The upper limit of the blind retransmission times of the uplink scheduling-free resources set for each terminal in the coverage area of the base station can ensure that each terminal in the coverage area of the base station automatically performs blind retransmission without receiving the ACK message fed back by the base station, and the base station is not required to issue DCI messages, thereby effectively reducing the scheduling delay.
As another alternative embodiment of the present application, referring to fig. 5, a flowchart of an embodiment 3 of a method for scheduling free resources in a power wireless private network provided by the present application is provided, where this embodiment mainly relates to an extension scheme of the method for scheduling free resources in a power wireless private network described in the foregoing embodiment 1, and as shown in fig. 5, the method may include, but is not limited to, the following steps:
step S31, if the uplink scheduling-free resource of the target terminal needs to be changed, performing reconfiguration on the uplink scheduling-free resource of the target terminal, and taking a result of the reconfiguration as the uplink scheduling-free resource to be updated.
The target terminal is a certain terminal in the coverage area of the base station.
Step S32, after the uplink scheduling-free resource of the target terminal is reconfigured, determining the RB starting position and the number of changed RBs of the target terminal.
Step S33, sending an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration validation flag, and the scheduling-free resource configuration validation flag is set to be invalid and is used to indicate that the target terminal does not activate the uplink scheduling-free resource to be updated.
Step S34, after receiving the RRC reconfiguration feedback message of the target terminal, respectively issuing a change message including the RB starting position of the target terminal and the changed number of RBs to the target terminal and each of the other terminals, where the change message is used to instruct each terminal to adjust the RB starting position of each terminal, and after the RB starting position of each terminal is adjusted, the target terminal activates the uplink scheduling-free resource to be updated.
The detailed procedures of steps S31-S34 can be referred to the related descriptions of steps S11-S14 in embodiment 1, and are not described herein again.
Step S35, if the target terminal receives the ACK message fed back by the base station after sending data on the uplink non-scheduling resource to be updated, the base station sends a DCI message to another terminal except the target terminal, so as to instruct the another terminal except the target terminal to send data using the uplink non-scheduling resource to be updated.
It should be noted that, if the target terminal does not receive the ACK message fed back by the base station after sending data on the uplink scheduling-free resource to be updated, blind retransmission continues.
As shown in fig. 6, if the ACK feedback of the eNB is not received after the SFN0 ue1 is newly transmitted, blind retransmission continues; after the new transmission of SFN4 ue1, ACK feedback of eNB is received on SFN5 SF0, which indicates that PUSCH is correctly received and uplink scheduling-free resource resources to be updated can be temporarily released; under the condition that the blind retransmission resource of UE1 is temporarily released, if the UE5 receives a DCI message (denoted as DCI0) sent by the base station through the SFN5 SF0, the UE5 may send data by using the uplink non-scheduling resource to be updated originally occupied by the UE 1.
And if the target terminal receives the ACK message fed back by the base station after sending data on the uplink scheduling-free resource to be updated, the base station sends a DCI message to another terminal except the target terminal for indicating the other terminal except the target terminal to send data by using the uplink scheduling-free resource to be updated, so that the recovery of the uplink scheduling-free resource to be updated of the target terminal is realized, and the resource utilization rate is improved.
In embodiment 4 of the present application, another method for scheduling-free resources in an electric wireless private network is introduced, which is applied to a base station, and as shown in fig. 7, it is a flowchart of embodiment 4 of the method for scheduling-free resources in an electric wireless private network provided in the present application, and the method includes the following steps:
step S41, if the downlink scheduling-free resource of the target terminal needs to be changed, performing reconfiguration on the downlink scheduling-free resource of the target terminal, and taking the reconfiguration result as the downlink scheduling-free resource to be updated.
The downlink scheduling-free resource may be understood as: downlink resources in the scheduling-free technology, such as time-frequency domain resources, MCS, etc. required by the base station to send data.
Step S42, sending an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the downlink non-scheduling resource to be updated and a non-scheduling resource configuration validation flag, and the non-scheduling resource configuration validation flag is set to be valid, and is used to instruct the target terminal to immediately activate the downlink non-scheduling resource to be updated.
In this embodiment, the fields included in the RRC reconfiguration message may refer to the description of the RRC reconfiguration message in embodiment 1, and are not described herein again.
Generally, the downlink adopts the OFDM protocol, and the RB resource can be discontinuously allocated, so after the scheduling-free resource of a certain UE is reconfigured, the RB position of other UEs is not greatly affected, and therefore, the scheduling-free resource configuration valid flag can be set to be valid.
And after the target terminal receives the effective mark of the scheduling-free resource configuration which is set to be effective, the target terminal immediately activates the downlink scheduling-free resource to be updated.
As another optional embodiment of the present application, referring to fig. 8, a flowchart of an embodiment 5 of a method for scheduling resource exemption in an electric wireless private network provided by the present application is provided, where this embodiment mainly relates to an extension scheme of the method for scheduling resource exemption in an electric wireless private network described in the foregoing embodiment 4, and as shown in fig. 8, the method may include, but is not limited to, the following steps:
step S51, if the downlink scheduling-free resource of the target terminal needs to be changed, performing reconfiguration on the downlink scheduling-free resource of the target terminal, and taking the reconfiguration result as the downlink scheduling-free resource to be updated.
Step S52, sending an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the downlink non-scheduling resource to be updated and a non-scheduling resource configuration validation flag, and the non-scheduling resource configuration validation flag is set to be valid, and is used to instruct the target terminal to immediately activate the downlink non-scheduling resource to be updated.
The detailed procedures of steps S51-S52 can be referred to the related descriptions of steps S41-S42 in embodiment 4, and are not described herein again.
Step S53, if the base station receives an ACK message fed back after the target terminal receives data on the to-be-updated downlink scheduling-free resource, the base station issues a DCI message to a certain terminal except the target terminal, so as to instruct another terminal except the target terminal to receive data by using the to-be-updated downlink scheduling-free resource.
And if the base station receives the ACK message fed back by the target terminal after sending the data on the downlink scheduling-free resource to be updated, the base station sends a DCI message to a certain terminal except the target terminal, and the DCI message is used for indicating another terminal except the target terminal to receive the data by using the downlink scheduling-free resource to be updated, so that the recovery of the downlink scheduling-free resource to be updated of the target terminal is realized, and the resource utilization rate is improved.
Next, a resource scheduling-free apparatus in an electric wireless private network provided by the present application is introduced, and the resource scheduling-free apparatus in an electric wireless private network described below and the resource scheduling-free method in an electric wireless private network described in embodiments 1 to 3 above may be referred to correspondingly.
Referring to fig. 9, the resource scheduling-free apparatus in the wireless private power network includes: the system comprises an uplink scheduling-free resource reconfiguration module 11, a first determination module 12, a first sending module 13 and a second sending module 14.
An uplink scheduling-free resource reconfiguration module 11, configured to reconfigure an uplink scheduling-free resource of a target terminal if the uplink scheduling-free resource of the target terminal needs to be changed, where a reconfiguration result is used as an uplink scheduling-free resource to be updated, and the target terminal is a certain terminal in a coverage area of the base station;
a first determining module 12, configured to determine an RB starting position and a changed RB number of the target terminal after reconfiguring the uplink scheduling-free resource of the target terminal;
a first sending module 13, configured to send an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration effective flag, and the scheduling-free resource configuration effective flag is set to be invalid and is used to indicate that the target terminal does not activate the uplink scheduling-free resource to be updated;
a second sending module 14, configured to, after receiving the RRC reconfiguration feedback message of the target terminal, respectively send a change message including the RB starting position of the target terminal and the changed number of RBs to the target terminal and each of the other terminals, where the change message is used to instruct each terminal to adjust its RB starting position, and after the RB starting position of each terminal is adjusted, the target terminal activates the uplink scheduling-free resource to be updated.
In this embodiment, the resource scheduling-free apparatus in the wireless private power network may further include:
and the setting module is used for setting the upper limit of the blind retransmission times of the uplink scheduling-free resources for each terminal in the coverage area of the base station so that each terminal in the coverage area of the base station automatically performs blind retransmission under the condition that the terminal does not receive the ACK message fed back by the base station until the ACK message fed back by the base station is received or the blind retransmission times reach the upper limit of the blind retransmission times.
In this embodiment, the resource scheduling-free apparatus in the wireless private power network may further include:
a first sending module, configured to send a DCI message to another terminal except the target terminal if the target terminal receives an ACK message fed back by the base station after sending data on the uplink scheduling-free resource to be updated, so as to instruct the another terminal except the target terminal to send data using the uplink scheduling-free resource to be updated.
Next, a resource scheduling-free apparatus in an electric wireless private network provided by the present application is introduced, and the resource scheduling-free apparatus in an electric wireless private network described below and the resource scheduling-free method in an electric wireless private network described in embodiments 4 to 5 above may be referred to correspondingly.
Referring to fig. 10, the resource scheduling-free apparatus in the wireless power private network is applied to a base station, and the resource scheduling-free apparatus in the wireless power private network includes: a downlink scheduling-free resource reconfiguration module 21 and a third sending module 22.
A downlink scheduling-free resource reconfiguration module 21, configured to reconfigure the downlink scheduling-free resource of the target terminal if the downlink scheduling-free resource of the target terminal needs to be changed, where a reconfiguration result is used as the downlink scheduling-free resource to be updated;
a third sending module 22, configured to send an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the downlink scheduling-free resource to be updated and a scheduling-free resource configuration effective flag, and the scheduling-free resource configuration effective flag is set to be valid, and is used to instruct the target terminal to immediately activate the downlink scheduling-free resource to be updated.
In this embodiment, the resource scheduling-free apparatus in the wireless power private network may further include:
and a second issuing module, configured to issue a DCI message to a certain terminal except the target terminal if the base station receives an ACK message fed back after the target terminal receives data on the downlink scheduling-free resource to be updated, so as to instruct another terminal except the target terminal to receive data using the downlink scheduling-free resource to be updated.
In another embodiment of the present application, a base station is presented that may include:
a processor, a memory, and a data bus through which the processor and the memory communicate;
the memory is used for storing programs;
the processor is configured to execute the resource scheduling-free method in the wireless private network according to the program stored in the memory, as described in any one of embodiments 1 to 3.
In another embodiment of the present application, a base station is presented that may include:
a processor, a memory, and a data bus through which the processor and the memory communicate;
the memory is used for storing programs;
the processor is configured to execute the resource scheduling-free method in the wireless private network according to the program stored in the memory, as described in any one of embodiments 4 to 5.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and reference may be made to the partial description of the method embodiment for relevant points.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute the method according to the embodiments or some portions of the embodiments of the present application.
The foregoing describes in detail a resource scheduling-free method, device and base station in a wireless private network, and a specific example is applied to explain the principle and implementation of the present application, and the description of the foregoing embodiments is only used to help understand the method and core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A resource scheduling-free method in a power wireless private network is applied to a base station, and the method comprises the following steps:
if the uplink scheduling-free resource of the target terminal needs to be changed, the uplink scheduling-free resource of the target terminal is reconfigured, the reconfiguration result is used as the uplink scheduling-free resource to be updated, and the target terminal is a certain terminal in the coverage area of the base station;
after the uplink scheduling-free resource of the target terminal is reconfigured, determining the RB initial position and the changed RB number of the target terminal;
sending an RRC reconfiguration message to the target terminal, wherein the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration effective mark, and the scheduling-free resource configuration effective mark is set to be invalid and is used for indicating the target terminal not to activate the uplink scheduling-free resource to be updated;
after receiving the RRC reconfiguration feedback message of the target terminal, respectively issuing a change message containing the RB starting position of the target terminal and the changed RB number to the target terminal and other terminals, wherein the change message is used for indicating each terminal to adjust the RB starting position of each terminal, and after the RB starting position of each terminal is adjusted, the target terminal activates the uplink scheduling-free resource to be updated.
2. The method of claim 1, further comprising:
and setting a blind retransmission time upper limit of uplink scheduling-free resources for each terminal in the coverage area of the base station, so that each terminal in the coverage area of the base station automatically performs blind retransmission under the condition that the terminal does not receive the ACK message fed back by the base station until the ACK message fed back by the base station is received or the blind retransmission time reaches the blind retransmission time upper limit.
3. The method of claim 1, wherein if the target terminal receives an ACK message fed back by the base station after sending data on the uplink non-scheduling resource to be updated, the base station issues a DCI message to another terminal except the target terminal to instruct the another terminal except the target terminal to send data by using the uplink non-scheduling resource to be updated.
4. A resource scheduling-free method in a power wireless private network is applied to a base station, and the method comprises the following steps:
if the downlink scheduling-free resource of the target terminal needs to be changed, reconfiguring the downlink scheduling-free resource of the target terminal, and taking a reconfigured result as the downlink scheduling-free resource to be updated;
and sending an RRC reconfiguration message to the target terminal, wherein the RRC reconfiguration message carries the downlink scheduling-free resource to be updated and a scheduling-free resource configuration effective mark, and the scheduling-free resource configuration effective mark is set to be effective and is used for indicating the target terminal to immediately activate the downlink scheduling-free resource to be updated.
5. The method of claim 4, further comprising:
and if the base station receives an ACK message fed back after the target terminal receives data on the downlink scheduling-free resource to be updated, the base station sends a DCI message to a certain terminal except the target terminal for indicating another terminal except the target terminal to receive the data by using the downlink scheduling-free resource to be updated.
6. A resource scheduling-free device in a power wireless private network is applied to a base station and comprises:
the uplink scheduling-free resource reconfiguration module is used for reconfiguring the uplink scheduling-free resource of the target terminal if the uplink scheduling-free resource of the target terminal needs to be changed, wherein the reconfigured result is used as the uplink scheduling-free resource to be updated, and the target terminal is a certain terminal in the coverage area of the base station;
a first determining module, configured to determine an RB starting position and a changed RB number of the target terminal after reconfiguration is performed on an uplink scheduling-free resource of the target terminal;
a first sending module, configured to send an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the uplink scheduling-free resource to be updated and a scheduling-free resource configuration validation flag, and the scheduling-free resource configuration validation flag is set to be invalid and is used to indicate that the target terminal does not activate the uplink scheduling-free resource to be updated;
and the second sending module is used for respectively sending a change message containing the RB starting position of the target terminal and the changed RB number to the target terminal and other terminals after receiving the RRC reconfiguration feedback message of the target terminal, wherein the change message is used for indicating each terminal to adjust the RB starting position of each terminal, and activating the uplink scheduling-free resource to be updated after the target terminal adjusts the RB starting position of each terminal.
7. The apparatus of claim 6, further comprising:
and the setting module is used for setting the upper limit of the blind retransmission times of the uplink scheduling-free resources for each terminal in the coverage area of the base station, so that each terminal in the coverage area of the base station automatically performs blind retransmission under the condition that the terminal does not receive the ACK message fed back by the base station until the ACK message fed back by the base station is received or the blind retransmission times reach the upper limit of the blind retransmission times.
8. A resource scheduling-free device in a wireless private power network is applied to a base station and comprises:
a downlink scheduling-free resource reconfiguration module, configured to reconfigure a downlink scheduling-free resource of a target terminal if the downlink scheduling-free resource of the target terminal needs to be changed, where a reconfiguration result is used as the downlink scheduling-free resource to be updated;
a third sending module, configured to send an RRC reconfiguration message to the target terminal, where the RRC reconfiguration message carries the downlink scheduling-free resource to be updated and a scheduling-free resource configuration effective flag, and the scheduling-free resource configuration effective flag is set to be valid, and is used to instruct the target terminal to immediately activate the downlink scheduling-free resource to be updated.
9. A base station, comprising: a processor, a memory, and a data bus through which the processor and the memory communicate;
the memory is used for storing programs;
the processor is used for executing the resource scheduling-free method in the electric wireless private network according to the program stored in the memory, wherein the method is as defined in any one of claims 1 to 3.
10. A base station, comprising: a processor, a memory, and a data bus through which the processor and the memory communicate;
the memory is used for storing programs;
the processor is used for executing the resource scheduling-free method in the electric wireless private network according to the program stored in the memory, wherein the method is as claimed in any one of claims 4 to 5.
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