WO2019037687A1

WO2019037687A1 - Semi-persistent scheduling reactivation method and apparatus, and base station

Info

Publication number: WO2019037687A1
Application number: PCT/CN2018/101359
Authority: WO
Inventors: 贺璟
Original assignee: 京信通信系统（中国）有限公司; 京信通信系统（广州）有限公司; 京信通信技术(广州)有限公司; 天津京信通信系统有限公司
Priority date: 2017-08-23
Filing date: 2018-08-20
Publication date: 2019-02-28
Also published as: CN107529173A

Abstract

The embodiments of the present application relate to the technical field of communications, and particularly to a semi-persistent scheduling reactivation method and apparatus, and a base station, which are used for solving the problem of the increase of a block error rate (BLER) under a semi-persistent scheduling service caused by a transmission channel change or interference. The method comprises: acquiring channel quality information and information about a data packet to be processed; determining a configuration parameter to be allocated according to the channel quality information and the information about the data packet to be processed; where it is determined that the configuration parameter to be allocated is different from current configuration parameter, allocating a semi-persistent scheduling resource to a terminal according to the configuration parameter to be allocated, and sending a physical downlink control channel (PDCCH) to perform semi-persistent scheduling reactivation, thereby effectively solving the problem of the increase of a block error rate (BLER) under a semi-persistent scheduling service caused by a transmission channel change or interference, thus improving user experience.

Description

Method, device and base station for semi-static scheduling reactivation

This application claims the priority of the Chinese patent application filed on August 23, 2017, the Intellectual Property Office of the People's Republic of China, the application number is 201710729113.9, and the application name is "a semi-static scheduling reactivation method, device and base station". The entire contents are incorporated herein by reference.

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, an apparatus, and a base station for semi-persistent scheduling reactivation.

Background technique

The VoLTE data packet is relatively small, and is a service that arrives periodically. In order to reduce the signaling overhead during transmission, a semi-persistent scheduling method is often used: after the bearer is established, the result of the time-frequency resource allocation is sent by only one signaling transmission, and then The eNB or UE may periodically use the same time-frequency resource until the allocated resources are released by signaling. Compared with the dynamic scheduling, each transmission needs to transmit the time-frequency resource allocation result through signaling. The semi-persistent scheduling has the characteristics of “one-time allocation and multiple-use”, and does not need to send downlink control for the UE in each TTI. The Downlink Control Information (DCI) (including the uplink or downlink DCI) reduces the corresponding physical downlink control channel (PDCCH) overhead.

In the prior art, the static scheduling needs to be activated by the PDCCH carrying the time-frequency resource information, and when the bearer is released, the PDCCH is also required to be released. Since the fixed resources are periodically used in the semi-persistent scheduling, the number of resources to be allocated and the allocated period are generally determined according to the service characteristics of the bearer (such as the packet size, the packet arrival period, etc.), but when the user appears After the change of the transmission channel caused by the location, the scene change and the rapid movement of the user, the performance of the semi-static scheduling will be affected to some extent, such as the increase of the block error rate BLER.

Therefore, there is a need for a semi-persistent scheduling reactivation method to effectively solve the problem of an increase in the block error rate BLER under semi-static scheduling services caused by transmission channel changes or interference.

Summary of the invention

The embodiment of the present invention provides a method, a device, and a base station for semi-persistent scheduling reactivation, which are used to effectively solve the problem of an increase in the block error rate BLER under semi-persistent scheduling services caused by transmission channel variation or interference, thereby improving user experience.

An embodiment of the present application provides a method for semi-persistent scheduling reactivation, which includes: acquiring channel quality information and information of a to-be-processed data packet; and determining a configuration parameter to be allocated according to the channel quality information and the information of the to-be-processed data packet; When it is determined that the configuration parameter to be allocated is different from the current configuration parameter, the terminal is allocated a semi-static scheduling resource according to the configuration parameter to be allocated.

A possible implementation manner, where the configuration parameters include:

Semi-statically scheduling resource block locations;

The size of the semi-statically scheduled resource block;

Modulation and coding strategy MCS index value.

A possible implementation manner, the determining the configuration parameter to be allocated includes any one or more of the following contents:

Determining, in each subband of the channel quality information, a subband with the largest channel quality value and not being occupied, and using the location of the resource block corresponding to the subband with the largest channel quality value and being unoccupied as Semi-statically scheduling resource block locations;

Determining a size of the semi-persistent scheduling resource block according to the information about the to-be-processed data packet and the channel quality value corresponding to the one subband with the largest channel quality value and not occupied;

And determining, according to the channel quality value corresponding to the location of the semi-persistent scheduling resource block and the size of the semi-persistent scheduling resource block, the MCS index value.

A possible implementation manner, after the determining the configuration parameter to be allocated, the method further includes:

And determining that the to-be-allocated configuration parameter is the same as the current configuration parameter, and transmitting the to-be-processed data packet according to the semi-persistent scheduling resource corresponding to the current configuration parameter.

A possible implementation manner, according to the channel quality information and the information of the to-be-processed data packet, determining the configuration parameters to be allocated includes:

The configuration parameters to be allocated are periodically determined based on the channel quality information and the information of the data packet to be processed.

The embodiment of the present application provides a semi-persistent scheduling reactivation device, including:

An obtaining unit, configured to acquire channel quality information and information about a to-be-processed data packet;

a determining unit, configured to determine, according to the channel quality information and the information of the to-be-processed data packet, a configuration parameter to be allocated;

And a processing unit, configured to allocate a semi-static scheduling resource to the terminal according to the configuration parameter to be allocated, if the configuration parameter to be allocated is different from the current configuration parameter.

A possible implementation manner, where the configuration parameters include:

Semi-statically scheduling resource block locations;

The size of the semi-statically scheduled resource block;

Modulation and coding strategy MCS index value.

A possible implementation manner, the determining unit is configured to:

A possible implementation manner, the processing unit is further configured to:

A possible implementation manner, the determining unit is configured to:

The configuration parameters to be allocated are periodically determined according to the channel quality information and the information of the to-be-processed data packet.

The embodiment of the present application provides a base station, including the semi-persistent scheduling reactivation device in the foregoing embodiment.

At least one processor; and,

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform any of the first aspect or the first aspect described above A digital predistortion method.

An embodiment of the present application provides a computer readable storage medium storing computer instructions for causing the computer to perform the first aspect or any possible implementation of the first aspect. method.

An embodiment of the present application provides a computer program product, the computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions, when the program instruction is executed by a computer, The computer performs the method of the first aspect or any possible implementation of the first aspect.

In the embodiment of the present application, the channel quality information and the information about the data packet to be processed are obtained, and the configuration parameter to be allocated is determined according to the channel quality information and the information of the data packet to be processed; and the configuration parameter to be allocated and the current configuration parameter are determined. The semi-persistent scheduling reactivation method provided in the embodiment of the present application is configured to allocate a semi-persistent scheduling resource to the terminal and allocate a physical downlink control channel PDCCH according to the configuration parameter to be allocated. The problem of the data packet to be processed is considered, and the channel quality change is considered. Thus, the problem of an increase in the block error rate BLER under the semi-static scheduling service caused by the transmission channel change or interference is effectively solved, thereby improving the user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of a semi-persistent scheduling system according to an embodiment of the present disclosure;

2 is a schematic flowchart of a method for semi-persistent scheduling reactivation according to an embodiment of the present disclosure;

FIG. 3 is a schematic flowchart of another method for semi-persistent scheduling reactivation according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a semi-persistent scheduling reactivation device according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a semi-persistent scheduling reactivation device according to an embodiment of the present disclosure.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and beneficial effects of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting.

It should be understood that the technical solutions in the embodiments of the present application may be applied to a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, and an LTE Time Division Duplex (Time Division Duplex). TDD) communication system.

FIG. 1 is a schematic diagram showing the architecture of a semi-static scheduling system to which an embodiment of the present application is applied.

As shown in FIG. 1, the semi-persistent scheduling system architecture 100 can include a base station 101, a terminal 102, a terminal 103, a terminal 104, and a core network 105. The base station 101 is connected to the terminal 102, the terminal 103, and the terminal 104. The base station 101 is connected to the core network. 105; Optionally, the base station 101 and the terminals 102-104 are connected by a wireless connection or a wired connection or other means. The transmitting device may be the base station 101, and the receiving device may be the terminal 102, the terminal 103, and the terminal 104. Alternatively, the transmitting device may be the terminal 102, the terminal 103, and the terminal 104, and the receiving device may be the base station 101.

In the embodiment of the present application, the terminal 102, the terminal 103, and the terminal 104 may communicate with one or more core networks via a radio access network (RAN), and the terminal device may refer to a user equipment (User Equipment, UE for short). ), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, or a Personal Digital Assistant (PDA). A handheld device having a wireless communication function, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, or the like.

The base station 101 according to the present application is an evolved base station (Evolutional Node B, eNB or eNodeB for short) in the LTE system. The terminal 102, the terminal 103, and the terminal 104 to which the present application relates may include a handheld device having a wireless communication function, an in-vehicle device, a wearable device, a computing device, or other processing device connected to the wireless modem, and various forms of user equipment. (User Equipment, UE for short), Mobile Station (MS), Terminal, Terminal Equipment, etc.

The base station 101 includes a semi-persistent scheduling reactivation device, and the semi-persistent scheduling reactivation device mainly includes a semi-persistent scheduling reactivation device and a terminal. The semi-persistent scheduling reactivation device is used to perform the embodiments provided by the embodiments of the present application. Semi-static scheduling reactivation method. Various aspects are described herein in connection with a terminal and/or semi-statically scheduled reactivation device. A terminal, a device that provides voice and/or data connectivity to a user, including a wireless terminal or a wired terminal. The wireless terminal can be a handheld device with wireless connectivity, or other processing device connected to a wireless modem, and a mobile terminal that communicates with one or more core networks via a wireless access network. For example, the wireless terminal can be a mobile phone (or "cellular" phone) and a computer with a mobile terminal. As another example, the wireless terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device. For another example, the wireless terminal can be part of a mobile station, an access point, or a user equipment (UE).

FIG. 2 is a schematic flowchart diagram of a method for semi-persistent scheduling reactivation provided by an embodiment of the present application.

Based on the system architecture shown in FIG. 1, as shown in FIG. 2, a method for semi-persistent scheduling reactivation provided by an embodiment of the present application is performed by a semi-persistent scheduling reactivation device, and the method includes the following steps:

Step S201: Acquire channel quality information and information of a to-be-processed data packet;

Step S202: Determine, according to the channel quality information and the information of the to-be-processed data packet, the configuration parameter to be allocated;

Step S203: If it is determined that the configuration parameter to be allocated is different from the current configuration parameter, allocate a semi-static scheduling resource to the terminal according to the configuration parameter to be allocated, and send a physical downlink control channel PDCCH to perform semi-persistent scheduling reactivation.

In the embodiment of the present application, the channel quality information and the information about the data packet to be processed are obtained; the configuration parameter to be allocated is determined according to the channel quality information and the information of the data packet to be processed; and the configuration parameter to be allocated and the current configuration parameter are determined. The semi-persistent scheduling reactivation method provided in the embodiment of the present application is configured to allocate a semi-persistent scheduling resource to the terminal and allocate a physical downlink control channel PDCCH according to the configuration parameter to be allocated. The problem of the data packet to be processed is considered, and the channel quality change is considered. Thus, the problem of an increase in the block error rate BLER under the semi-static scheduling service caused by the transmission channel change or interference is effectively solved, thereby improving the user experience.

The channel includes a physical uplink channel and a physical downlink channel. The channel quality information corresponding to the physical uplink channel includes a signal-to-noise ratio (SNR) corresponding to each uplink sub-band. The channel information corresponding to the physical downlink channel includes: The channel quality indicator (CQI) corresponding to the downlink sub-bands; therefore, the channel quality information includes any one of the SNR corresponding to each uplink sub-band and the CQI corresponding to each downlink sub-band.

The configuration parameter to be allocated in the foregoing step S202 and the current configuration parameter in the step S203 include: a semi-persistent scheduling resource block position; a semi-static scheduling resource block size; and a modulation and coding policy MCS index value.

Based on the configuration parameters provided in the embodiment of the present application, the configuration parameter to be allocated in the foregoing step S203 is different from the current configuration parameter, including: at least one of the configuration parameters to be allocated is different from the current configuration parameter; specifically It is divided into the following cases: In the first case, there is one configuration parameter to be allocated that is different from the current configuration parameter. For example, the semi-persistent scheduling resource block position and the current configuration parameter in the configuration parameter to be allocated. The position of the semi-persistent scheduling resource block is the same, and the other two are the same. For example, the MCS index value in the configuration parameter to be allocated is different from the MCS index value in the current configuration parameter, and the other two are the same; for example, to be allocated The size of the semi-persistent scheduling resource block in the configuration parameter is different from the size of the semi-persistent scheduling resource block in the current configuration parameter, and the other two items are the same; in the second case, there are two configuration parameters to be allocated and the current configuration. Different parameters, for example, the semi-persistent scheduling resource block position and MCS index value in the configuration parameters to be allocated The semi-persistent scheduling resource block location and the MCS index value in the configuration parameter are different, and the semi-persistent scheduling resource block has the same size; for example, the semi-persistent scheduling resource block location and the semi-static scheduling resource block size in the configuration parameter to be allocated. The MCS index value is the same as the size of the semi-persistent scheduling resource block and the size of the semi-persistent scheduling resource block in the current configuration parameter; for example, the MCS index value and the size of the semi-persistent scheduling resource block in the configuration parameter to be allocated are The MCS index value and the size of the semi-persistent scheduling resource block in the current configuration parameter are different, and the semi-persistent scheduling resource block location is the same; in the third case, the semi-persistent scheduling resource block location, the MCS index value, and the configuration parameter to be allocated are The size of the semi-persistent scheduling resource block is different from the semi-persistent scheduling resource block location, the MCS index value, and the semi-persistent scheduling resource block size in the current configuration parameters.

Based on the foregoing step S202, determining that the configuration parameter to be allocated includes any one or any one of the following items: the first item, determining one of the channel quality information that has the largest channel quality value and is not occupied in each sub-band. The sub-band, the location of the resource block corresponding to the sub-band that is determined to be the largest and the unoccupied one is the semi-static scheduling resource block position, and the sub-band is the optimal sub-band; Processing the data packet and the channel quality value corresponding to one subband (ie, the optimal subband) having the largest channel quality value, and determining the size of the semi-persistent scheduling resource block; and the third item, corresponding to the semi-persistent scheduling resource block location The channel quality value and the determined size of the semi-persistent scheduling resource block determine the MCS index value.

In the embodiment of the present application, the channel quality information includes the physical uplink channel quality information and the physical downlink channel quality information. The determining the location of the semi-persistent scheduling resource block in the foregoing first item includes:

For the physical uplink channel, the channel quality value is SNR; the SNR is obtained by the semi-persistent scheduling reactivation device monitoring the physical uplink channel. Determining the configuration parameter to be allocated includes: determining a subband with the largest SNR value in each subband of the physical uplink channel, and using the location of the resource block corresponding to the subband with the largest SNR value as the semi-persistent scheduling resource block location; Optionally, the semi-persistent scheduling resource block location may be a location corresponding to all resource blocks in a subband with the largest SNR value in the physical uplink channel, or may be a partial resource block in a subband with the largest SNR value in the physical uplink channel. Corresponding location

For the physical downlink channel, the channel quality value is CQI; the CQI is obtained by the terminal monitoring the physical downlink channel, and is sent to the semi-persistent scheduling reactivation device through the physical uplink channel. Determining the configuration parameter to be allocated includes: determining a subband with the largest CQI value in each subband of the physical downlink channel, and using the location of the resource block corresponding to the subband with the largest CQI value as the semi-persistent scheduling resource block location; The location of the semi-persistent scheduling resource block may be the location of all the resource blocks in the sub-band with the largest CQI value in the physical downlink channel, or may be the partial resource block in the sub-band with the largest CQI value in the physical downlink channel. Corresponding location.

In the foregoing second item, the feature information of the to-be-processed data packet includes the size of the data packet to be processed and the arrival period of the data packet to be processed; and determining the size of the semi-persistent scheduling resource block, specifically including:

For the physical uplink channel, the size of the semi-persistent scheduling resource block is determined according to the maximum SNR of each sub-band of the physical uplink channel, the size of the data packet to be processed, and the arrival period of the data packet to be processed; The larger the semi-persistent scheduling resource block is, the smaller the arrival period of the data packet to be processed is, the larger the semi-persistent scheduling resource block is determined; the smaller the SNR maximum value of each sub-band, the smaller the SNR maximum value of each sub-band is determined. The semi-static scheduling resource block is larger;

For the physical downlink channel, the size of the semi-persistent scheduling resource block is determined according to the maximum value of each sub-band CQI of the physical downlink channel, the size of the to-be-processed data packet, and the arrival period of the to-be-processed data packet; The larger the semi-persistent scheduling resource block is, the smaller the arrival period of the data packet to be processed is, the larger the semi-persistent scheduling resource block is determined; the smaller the maximum CQI value of each sub-band, the smaller the maximum CQI value of each sub-band is determined. The semi-static scheduling resource block is larger.

In the foregoing third item, the smaller the MCS index value is, the lower the code rate of the transmitted data packet is. The determining the MCS index value includes: determining the MCS index value, which specifically includes:

For the physical uplink channel, the MCS index value is determined by the maximum SNR of each sub-band of the physical uplink channel, wherein the larger the SNR maximum value, the larger the MCS index value;

For the physical downlink channel, the MCS index value is determined by the maximum value of each sub-band CQI of the physical uplink channel, wherein the larger the CQI maximum value, the larger the MCS index value.

It should be noted that, in the foregoing embodiment, the location of the semi-persistent scheduling resource is determined to be the location of the resource block that is not occupied by other terminals. Taking the physical downlink channel as an example, the process of determining the location of the semi-persistent scheduling resource includes the following two methods: The method is: determining a CQI list corresponding to each subband of the physical downlink channel, determining a CQI maximum value in the CQI list, determining whether the subband corresponding to the CQI maximum value is occupied by another terminal; if the CQI maximum value corresponds to the subband If the resource block pointed to by the CQI maximum CQI_MAX is occupied as a semi-persistent scheduling resource location, if the resource block corresponding to the CQI maximum value is occupied, the CQI other than the occupied resource block is determined from the CQI list. The location of the resource block corresponding to the maximum value is used as the semi-persistent scheduling resource location; in another manner, the CQI list corresponding to each sub-band of the physical downlink channel is determined, and the sub-resource corresponding to the resource block occupied by the other terminal is removed from the CQI list. The CQI of the band, obtains a CQI list of subbands that are not occupied by other terminals, and determines the CQI from the CQI list of the subbands that are not occupied by other terminals. Locations of the resource blocks is greater CQI_MAX, CQI_MAX pointed position for the semi-persistent scheduling resources.

In the embodiment of the present application, the semi-persistent scheduling re-activation method considers the channel quality change to obtain the configuration parameter to be allocated, and allocates the semi-static scheduling resource to the terminal when the configuration parameter to be allocated is different from the current configuration parameter. In this way, the problem that the service BLER is increased and the user experience is deteriorated due to the channel change caused by the location, the scene change or the fast movement of the terminal using the semi-persistent scheduling is solved.

In the embodiment of the present application, after determining the configuration parameter to be allocated, if the configuration parameter to be allocated is the same as the current configuration parameter, the data packet to be processed is transmitted according to the semi-persistent scheduling resource corresponding to the current configuration parameter. Thus, in the case where the configuration parameters are unchanged, the terminal is not semi-statically scheduled to be reactivated.

The embodiment of the present invention provides a configuration parameter to be allocated according to the channel quality information and the information of the to-be-processed data packet, including: periodically determining the configuration parameter to be allocated according to the channel quality information and the information of the to-be-processed data packet. That is, the configuration parameter to be allocated is periodically determined according to the channel quality information obtained in real time and the information of the data packet to be processed; the period for calculating the configuration parameter to be allocated is a preset parameter, and the value range is generally 20 to 2000 ms. between. After that, it is determined whether the configuration parameter to be allocated is the same as the current configuration parameter. If the configuration parameters are the same, no operation is performed, and the configuration parameter to be allocated is calculated in the next cycle; if not, the terminal is re-configured according to the configuration parameter to be allocated. Assign this static scheduling resource. In this way, the semi-persistent scheduling re-activation device dynamically adjusts the configuration parameters of the resources used by the semi-persistent scheduling user through the re-activation process of the semi-persistent scheduling based on the real-time monitoring and flexible application of the channel quality information.

In an optional implementation manner, the semi-persistent scheduling re-activation device in the embodiment of the present application may be a module that performs real-time monitoring and processing on channel quality information in the base station, without extra cost, and only needs periodic With simple search and calculation, the configuration parameters to be assigned can be obtained in real time. In another optional implementation manner, the semi-persistent scheduling reactivation device may be a separate device newly set in the base station. The semi-persistent scheduling reactivation method provided by the embodiment of the present application can significantly improve the service performance of the semi-persistent scheduling in the time-varying channel environment, and improve the user physical examination.

An embodiment of the present application provides an implementation manner of allocating a semi-persistent scheduling resource to a terminal according to the configuration parameter to be allocated: when the configuration parameter to be allocated is different from the current configuration parameter, the terminal sends the bearer to be allocated. The re-activation semi-static scheduling signaling of the configuration parameters is used to re-allocate the semi-persistent scheduling resources for the terminal.

Further, in order to avoid the frequent reactivation process due to channel information measurement error, and to reduce the quantization level of each sub-band CQI and each sub-band SNR, the quantization level generally ranges from 2 to 8. For example, there are 5 sub-bands, and the values of CQI are 6, 8, 15, 16, and 10, respectively, and the value of each CQI is reduced by a multiple, for example, the quantization level is 5, that is, after being reduced by 5 times, 1.8 is obtained. 1.6, 3, 3.2, 2, the values of the five CQIs are rounded to get 1, 1, 3, 3, 2, at this time there are two CQI values of 1, two CQI values of 3, one The value of CQI is 2; the maximum value among the five CQI values is 3; the configuration parameter to be allocated is determined according to the maximum value among the five CQI values, and thus, in the CQI value obtained when the channel quality changes very small The maximum value of the CQI value corresponding to the current configuration parameter is almost the same; therefore, the semi-persistent scheduling reactivation method provided by the embodiment of the present application does not cause the obtained configuration parameter to be allocated if the channel quality changes little. Unlike the current configuration parameters, it is frequently reactivated.

FIG. 3 is a schematic flowchart showing another method for semi-static scheduling reactivation according to the embodiment of the present application. Based on the system architecture shown in FIG. 1 , as shown in FIG. 3 , another embodiment provided by the embodiment of the present application is provided. The semi-static scheduling reactivation method is performed by a semi-persistent scheduling reactivation device, and the method comprises the following steps:

Step S301: After the semi-persistent scheduling resource is allocated to the terminal, the terminal allocates a configuration parameter corresponding to the semi-static scheduling resource as the current configuration parameter.

Step S302: Obtain channel quality information of the current period and information of the data packet to be processed;

Step S303: Determine, according to the channel quality information, a subband with the largest channel quality value and not occupied in each subband in the channel quality information;

Step S304: The location of the resource block corresponding to one subband with the largest channel quality value and not occupied is used as a semi-persistent scheduling resource block location;

Step S305: Determine a size of the semi-persistent scheduling resource block according to the size of the data packet to be processed, the arrival period of the data packet to be processed, and the channel quality value corresponding to one subband with the largest channel quality value and not occupied.

Step S306: Determine an MCS index value according to a channel quality value corresponding to the location of the semi-persistent scheduling resource block and a size of the semi-persistent scheduling resource block.

Step S307: The semi-persistent scheduling resource block location, the semi-persistent scheduling resource block size, and the MCS index value are used as configuration parameters to be allocated;

Step S308: determining whether the configuration parameter to be allocated is the same as the current configuration parameter; if yes, executing step S309; if not, executing step S310;

Step S309: continue to wait for the next cycle as the current cycle; continue to step S302;

Step S310: Allocate a semi-static scheduling resource to the terminal according to the configuration parameter to be allocated, and send a physical downlink control channel PDCCH to perform semi-persistent scheduling reactivation.

It can be seen from the above that: the channel quality information and the information of the to-be-processed data packet are obtained; the configuration parameter to be allocated is determined according to the channel quality information and the information of the to-be-processed data packet; and the configuration parameter to be allocated and the current configuration are determined. If the parameters are different, the semi-persistent scheduling resource is allocated to the terminal according to the configuration parameter to be allocated, and the physical downlink control channel PDCCH is sent to perform semi-persistent scheduling reactivation, that is, the semi-persistent scheduling reactivation provided in this embodiment of the present application. The method not only considers the information of the data packet to be processed, but also considers the channel quality change situation, so as to effectively solve the problem that the BLER is increased under the semi-static scheduling service caused by the transmission channel change or the interference, thereby improving the user experience.

Based on the foregoing embodiments and the same concepts, FIG. 4 exemplarily shows a schematic structural diagram of a semi-persistent scheduling reactivation apparatus provided by an embodiment of the present application. The semi-persistent scheduling reactivation device is configured to perform the above method flow. As shown in FIG. 4, the semi-persistent scheduling reactivation device 400 includes an obtaining unit 401, a determining unit 402, and a processing unit 403;

An obtaining unit 401, configured to acquire channel quality information and information about a to-be-processed data packet;

a determining unit 402, configured to determine, according to the channel quality information and the information of the to-be-processed data packet, a configuration parameter to be allocated;

The processing unit 403 is configured to allocate a semi-static scheduling resource to the terminal according to the configuration parameter to be allocated, if the configuration parameter to be allocated is different from the current configuration parameter.

Optionally, the configuration parameter includes: a semi-persistent scheduling resource block location; a semi-static scheduling resource block size; a modulation and coding policy MCS index value.

Optionally, the determining unit 402 is configured to: determine, in each subband of the channel quality information, a subband with the largest channel quality value and is not occupied, and maximize the channel quality value, and The location of the resource block corresponding to one subband is occupied as a semi-persistent scheduling resource block location; according to the information of the to-be-processed data packet and the channel quality value corresponding to the one subband with the largest channel quality value and not occupied Determining a size of the semi-persistent scheduling resource block; determining the MCS index value according to a channel quality value corresponding to the semi-persistent scheduling resource block location.

Optionally, the processing unit 403 is further configured to: when the configuration parameter to be allocated is determined to be the same as the current configuration parameter, transmit the to-be-processed data packet according to the semi-persistent scheduling resource corresponding to the current configuration parameter.

Optionally, the determining unit 402 is configured to periodically determine, according to the channel quality information and the information of the to-be-processed data packet, the configuration parameter to be allocated.

Based on the above embodiments and the same concept, the embodiment of the present application further provides a base station, where the base station includes the semi-persistent scheduling reactivation device involved in any of the foregoing embodiments, where the semi-persistent scheduling reactivation device is configured to perform the foregoing implementation. Semi-static scheduling reactivation method.

Based on the same concept, the present application provides a semi-persistent scheduling reactivation apparatus including at least one processor; and a memory communicatively coupled to the at least one processor; the memory storage being executable by the at least one processor And an instruction executed by the at least one processor to enable the at least one processor to perform the method of semi-persistent scheduling reactivation in the above embodiments.

Taking a processor as an example, FIG. 5 is a schematic structural diagram of a semi-persistent scheduling reactivation device provided by the present application. As shown in FIG. 5, the semi-persistent scheduling reactivation device 500 includes a processor 501, a memory 502, and a communication interface 503; wherein the processor 501, the memory 502, and the communication interface 503 are connected to each other through a bus 504.

The memory 502 is used to store programs. In particular, the program can include program code, the program code including computer operating instructions. The memory 502 may be a volatile memory, such as a random-access memory (RAM), or a non-volatile memory, such as a flash memory. A hard disk drive (HDD) or a solid-state drive (SSD); or any combination of any one or more of the above-mentioned volatile memory and non-volatile memory.

The memory 502 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:

Operation instructions: include various operation instructions for implementing various operations.

Operating system: Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.

The bus 504 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5, but it does not mean that there is only one bus or one type of bus.

The communication interface 503 can be a wired communication access port, a wireless communication interface, or a combination thereof, wherein the wired communication interface can be, for example, an Ethernet interface. The Ethernet interface can be an optical interface, an electrical interface, or a combination thereof. The wireless communication interface can be a WLAN interface.

The processor 501 can be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP. It can also be a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination. In one possible design, the memory 502 can also be integrated with the processor 501.

The memory 502 is configured to store one or more executable programs, and may store data used by the processor 401 when performing operations.

The processor 501 is configured to determine, according to the channel quality information and the information of the to-be-processed data packet, a configuration parameter to be allocated; and if it is determined that the configuration parameter to be allocated is different from the current configuration parameter, according to the waiting The assigned configuration parameters allocate semi-static scheduling resources to the terminal.

Optionally, the processor 501 is configured to determine, in each subband of the channel quality information, a subband with the largest channel quality value and is not occupied, and the channel quality value is the largest and unoccupied. The location of the resource block corresponding to the sub-band is used as the location of the semi-persistent scheduling resource block; and the channel quality value corresponding to one sub-band with the largest channel quality value and the unoccupied channel is determined according to the information of the to-be-processed data packet The size of the semi-persistent scheduling resource block; determining the MCS index value according to the channel quality value corresponding to the semi-persistent scheduling resource block location.

Optionally, the processor 501 is further configured to: when the configuration parameter to be allocated is determined to be the same as the current configuration parameter, transmit the to-be-processed data packet according to the semi-persistent scheduling resource corresponding to the current configuration parameter.

Optionally, the processor 501 is configured to periodically determine, according to the channel quality information and information about the to-be-processed data packet, the configuration parameter to be allocated.

The above products can perform the methods provided by the embodiments of the present application, and have the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiments of the present application.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can 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, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of the method, apparatus (system), and computer program product according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A semi-persistent scheduling reactivation method, comprising:

Obtaining channel quality information and information of a to-be-processed data packet;

Determining, according to the channel quality information and the information of the to-be-processed data packet, a configuration parameter to be allocated;

When it is determined that the configuration parameter to be allocated is different from the current configuration parameter, the semi-static scheduling resource is allocated to the terminal according to the configuration parameter to be allocated, and the physical downlink control channel PDCCH is sent to perform semi-persistent scheduling reactivation.
The method of claim 1 wherein said configuration parameters comprise:

Semi-statically scheduling resource block locations;

The size of the semi-statically scheduled resource block;

Modulation and coding strategy MCS index value.
The method of claim 2, wherein the determining the configuration parameters to be allocated comprises any one or more of the following:

Determining, in each subband of the channel quality information, a subband with the largest channel quality value and not being occupied, and using the location of the resource block corresponding to the subband with the largest channel quality value and being unoccupied as Semi-statically scheduling resource block locations;

Determining a size of the semi-persistent scheduling resource block according to the information about the to-be-processed data packet and the channel quality value corresponding to the one subband with the largest channel quality value and not occupied;

And determining, according to the channel quality value corresponding to the location of the semi-persistent scheduling resource block and the size of the semi-persistent scheduling resource block, the MCS index value.
The method according to claim 1, wherein after the determining the configuration parameter to be allocated, the method further comprises:

And determining that the to-be-allocated configuration parameter is the same as the current configuration parameter, and transmitting the to-be-processed data packet according to the semi-persistent scheduling resource corresponding to the current configuration parameter.
The method according to any one of claims 1 to 4, wherein determining the configuration parameters to be allocated according to the channel quality information and the information of the data packet to be processed includes:

The configuration parameters to be allocated are periodically determined according to the channel quality information and the information of the to-be-processed data packet.
A semi-persistent scheduling reactivation device, comprising:

An obtaining unit, configured to acquire channel quality information and information about a to-be-processed data packet;

a determining unit, configured to determine, according to the channel quality information and the information of the to-be-processed data packet, a configuration parameter to be allocated;

a processing unit, configured to allocate a semi-static scheduling resource to the terminal according to the configuration parameter to be allocated, and send a physical downlink control channel PDCCH to be semi-static according to the configuration parameter to be allocated, if the configuration parameter to be allocated is different from the current configuration parameter. Schedule reactivation.
The semi-persistent scheduling reactivation apparatus according to claim 6, wherein the configuration parameters comprise:

Semi-statically scheduling resource block locations;

The size of the semi-statically scheduled resource block;

Modulation and coding strategy MCS index value.
The semi-static scheduling reactivation device according to claim 7, wherein the determining unit is configured to:

Determining, in each subband of the channel quality information, a subband with the largest channel quality value and not being occupied, and using the location of the resource block corresponding to the subband with the largest channel quality value and being unoccupied as Semi-statically scheduling resource block locations;

Determining a size of the semi-persistent scheduling resource block according to the information about the to-be-processed data packet and the channel quality value corresponding to the one subband with the largest channel quality value and not occupied;

And determining, according to the channel quality value corresponding to the location of the semi-persistent scheduling resource block and the size of the semi-persistent scheduling resource block, the MCS index value.
The semi-persistent scheduling reactivation device according to claim 6, wherein the processing unit is further configured to:

When it is determined that the configuration parameter to be allocated is the same as the current configuration parameter, the to-be-processed data packet is transmitted according to the semi-persistent scheduling resource corresponding to the current configuration parameter.
The semi-static scheduling reactivation device according to any one of claims 6 to 9, wherein the determining unit is configured to:

The configuration parameters to be allocated are periodically determined according to the channel quality information and the information of the to-be-processed data packet.
A base station, comprising: the semi-persistent scheduling reactivation device according to any one of claims 6-10.
A computer readable storage medium, wherein the computer readable storage medium stores computer instructions for causing the computer to perform the method of any of claims 1-5.
A computer program product, comprising: a computing program stored on a computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, causing the computer A method according to any of claims 1 to 5.