CN113709774B

CN113709774B - Multiplexing method and device of authorization-free URLLC and dynamic scheduling eMBB

Info

Publication number: CN113709774B
Application number: CN202111251619.6A
Authority: CN
Inventors: 向平叶; 徐荣军; 张溪蓬; 吕及满; 成剑
Original assignee: Peng Cheng Laboratory
Current assignee: Peng Cheng Laboratory
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-02-08
Anticipated expiration: 2041-10-27
Also published as: CN113709774A

Abstract

The invention discloses a multiplexing method and a device of authorization-free URLLC and dynamic scheduling eMBB, wherein the method comprises the following steps: receiving a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information sent by a base station; determining time-frequency resources occupied by the eMBB terminal according to a downlink control information format and radio resource control signaling configuration parameters; and acquiring URLLC time-frequency resources according to the time-frequency resources occupied by the eMBB terminal and transmitting URLLC service data on the URLLC time-frequency resources. In the embodiment of the invention, the downlink control information format and the radio resource control signaling configuration parameter both comprise the resource information of the resource pre-configured to the URLLC terminal and occupied by the eMBB terminal, so that the URLLC terminal can avoid the conflict between the URLLC service transmission and the eMBB service transmission by detecting the resource information occupied by the eMBB terminal when the data is transmitted in a burst way.

Description

Multiplexing method and device of authorization-free URLLC and dynamic scheduling eMBB

Technical Field

The invention relates to the technical field of wireless communication, in particular to a multiplexing method and a multiplexing device of an authorization-free URLLC and dynamic scheduling eMBB.

Background

Ultra-high-reliability Low-Latency communication (URLLC) is one of three application scenes of 5G (fine Generation Wireless systems), and is a technical foundation of novel application related to industrial internets such as vehicle networking, industrial automation and electric power automatic control. The data transmission of these URLLC service applications needs to meet the requirements of ultra-high reliability and extremely low latency. In order to better support low-delay data transmission, 5G NR (New Radio) introduces an uplink grant-free transmission method, which is the following two methods: the Type1 unlicensed transmission configured by RRC (radio Resource Control) signaling and the Type2 unlicensed transmission configured by RRC signaling and DCI (Downlink Control information) activation signaling together. In order to improve the utilization rate of a radio frequency spectrum and simultaneously meet different requirements of different services, NR supports a multiplexing scenario of URLLC and enhanced Mobile broadband embb (enhanced Mobile broadband band), NR Release 16 is used for solving Uplink multi-service multiplexing between terminals by introducing two standardized schemes of Uplink cancellation indication (UL CI) and enhanced Uplink power control, but the two schemes can only solve the conflict of Uplink service transmission between terminals of the second type of unlicensed scheduling and dynamic scheduling.

However, the current method can only solve the conflict between the Type2 unlicensed scheduling and the uplink service of dynamic scheduling, which are jointly configured by dci (downlink Control information) activation signaling, and the transmission reliability of the Type1 unlicensed URLLC transmission and the dynamically scheduled eMBB transmission, which are configured by rrc (radio Resource Control) signaling, under the multiplexing scenario is low.

Thus, there is still a need for improvement and development of the prior art.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a method and an apparatus for multiplexing grant-free URLLC and dynamically scheduled eMBB, aiming at solving the problem in the prior art that Type1 configured by rrc (radio Resource control) signaling has low transmission reliability in a multiplexing scenario for grant-free URLLC transmission and dynamically scheduled eMBB transmission.

The technical scheme adopted by the invention for solving the problems is as follows:

in a first aspect, an embodiment of the present invention provides a multiplexing method for unlicensed URLLC and dynamic scheduling eMBB, where the method includes:

receiving a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal;

determining time-frequency resources occupied by the eMBB terminal according to the downlink control information format and the radio resource control signaling configuration parameters;

and obtaining URLLC time-frequency resources according to the time-frequency resources occupied by the eMBB terminal and transmitting URLLC service data on the URLLC time-frequency resources.

In an implementation manner, the naming result of the downlink control information format carrying the preset information is different from the naming result of the DCI format of the 3GPP protocol.

In an implementation manner, the cyclic redundancy check of the downlink control information format carrying the preset information is scrambled by an occupied indication scrambling code.

In one implementation, the indication scrambling code is shared by multiple URLLC terminals.

In an implementation manner, the capacity of the downlink control information format carrying the preset information is configured by radio resource control.

In an implementation manner, the downlink control information format carrying the preset information includes occupied indication bit information and time-frequency domain information used for indicating that the authorization-free resource for the RULLC terminal is occupied by the eMBB terminal.

In an implementation manner, the radio resource control signaling configuration parameter carrying the preset information is provided with an uplink occupied cell, where the uplink occupied cell is used to configure the URLLC terminal to monitor the downlink control information scrambled by the occupied indication scrambling code.

In an implementation manner, the radio resource control signaling configuration parameter carrying the preset information includes: occupied indication scrambling codes, time frequency set, downlink control information load capacity and occupied configuration information of the service cell.

In one implementation, the serving cell occupied configuration information includes: the service cell ID, the position information of the uplink occupied indication in the control information format and a time frequency resource indication domain set.

In an implementation manner, the determining that the eMBB terminal occupies the time-frequency resource according to the downlink control information format and the radio resource control signaling configuration parameter includes:

detecting a physical downlink control channel carrying a downlink control information format;

analyzing the physical downlink control channel to obtain information transmitted in a downlink control information format;

and decoding the information transmitted in the downlink control information format by adopting the occupied indication scrambling code according to the configuration parameters of the radio resource control signaling to obtain the time-frequency resource occupied by the eMBB terminal.

In an implementation manner, the obtaining URLLC time-frequency resources according to the time-frequency resources occupied by the eMBB terminal, and transmitting URLLC service data on the URLLC time-frequency resources includes:

acquiring a first type of authorization-free configuration resource of a first type of authorization-free configuration;

obtaining URLLC time-frequency resources according to the first-class authorization-free configuration resources and the time-frequency resources occupied by the eMBB terminal;

and transmitting URLLC service data on the URLLC time-frequency resource.

In an implementation manner, the obtaining the URLLC time-frequency resource according to the first-class authorization-free configuration resource and the time-frequency resource occupied by the eMBB terminal includes:

reading the data arrival time of the URLLC service data;

and obtaining URLLC time-frequency resources according to the first-class authorization-free configuration resources, the eMBB terminal occupied time-frequency resources and the data arrival time.

In one implementation, the URLLC time-frequency resources include a target initial transmission opportunity and a transmission opportunity of a target URLLC terminal; the obtaining of the URLLC time frequency resource according to the first-class authorization-free configuration resource, the eMBB terminal occupied time frequency resource and the data arrival time comprises:

when the first type of authorization-free configuration resources are a single set, selecting a transmission opportunity which has the minimum time distance from the data arrival opportunity and does not include the data arrival opportunity from all transmission opportunities as a target initial transmission opportunity on the premise of not overlapping with time-frequency resources occupied by an eMB B terminal;

and when the first type of authorization-free configuration resources are a plurality of sets, selecting the set of authorization-free resource configuration which has the minimum time distance with the data arrival time and the repeated transmission times which are the preset times and do not overlap with the time-frequency resources occupied by the eMB terminal as the transmission time of the target URLLC terminal under the condition of meeting the preset time delay.

In a second aspect, an embodiment of the present invention further provides a multiplexing apparatus for unlicensed URLLC and dynamic scheduling eMBB, where the apparatus includes a receiving module, an eMBB terminal occupied time-frequency resource determining module, and a URLLC service data transmission module, where:

the receiving module is used for receiving a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information, which are sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal;

the eMB B terminal occupies the time-frequency resource determining module is used for determining the eMB B terminal occupies the time-frequency resource according to the downlink control information format and the radio resource control signaling configuration parameter;

and the URLLC service data transmission module is used for obtaining URLLC time-frequency resources according to the time-frequency resources occupied by the eMBB terminal and transmitting URLLC service data on the URLLC time-frequency resources.

In a third aspect, an embodiment of the present invention further provides an intelligent terminal, including a memory, and one or more programs, where the one or more programs are stored in the memory, and configured to be executed by one or more processors, where the one or more programs include a multiplexing method for performing the license exempt URLLC and dynamic scheduling eMBB as described in any one of the above.

In a fourth aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, where instructions of the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the method for multiplexing the unlicensed URLLC and the dynamically scheduled eMBB as described in any one of the above.

The invention has the beneficial effects that: the embodiment of the invention firstly receives a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal; then determining that the eMB terminal occupies time-frequency resources according to the downlink control information format and the radio resource control signaling configuration parameters; finally, according to the time frequency resource occupied by the eMBB terminal, obtaining URLLC time frequency resource and transmitting URLLC service data on the URLLC time frequency resource; it can be seen that, in the embodiment of the present invention, both the downlink control information format and the radio resource control signaling configuration parameter include resource information that resources pre-configured to the URLLC terminal are occupied by the eMBB terminal, so that the URLLC terminal can avoid a conflict between URLLC service transmission and eMBB service transmission by detecting the resource information occupied by the eMBB terminal when transmitting data in a burst manner.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart illustrating a multiplexing method of an unlicensed URLLC and a dynamic scheduling eMBB according to an embodiment of the present invention.

Fig. 2 is an exemplary diagram of an uplink occupied cell according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of occupied indication bit generation rules according to an embodiment of the present invention.

Fig. 4 is a diagram illustrating an example of a plurality of sets of transmission configurations according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a multiplexing transmission mechanism between an eMBB terminal and an unlicensed URLLC terminal according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of transmission timing of a single set of URLLC services configured without authorization according to the first type of embodiments of the present invention.

Fig. 7 is a schematic diagram of system interaction signaling according to an embodiment of the present invention.

Fig. 8 is a schematic block diagram of a base station for implementing multiplexing between uplink data terminals according to an embodiment of the present invention.

Fig. 9 is a schematic block diagram of a multiplexing apparatus for unlicensed URLLC and dynamic scheduling eMBB according to an embodiment of the present invention.

Fig. 10 is a schematic block diagram of an internal structure of an intelligent terminal according to an embodiment of the present invention.

Detailed Description

The invention discloses a multiplexing method and a multiplexing device of an authorization-free URLLC and a dynamic scheduling eMBB, and in order to make the purpose, the technical scheme and the effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In the prior art, since the ULCI cancels transmission signaling by sending part or all of the eMMC service resources, it can be ensured that part or all of eMMC service transmission is cancelled in advance on time-frequency resources of URLLC service transmission, so that the URLLC terminal can transmit on clean resources independently without interference of eMMC service transmission, and the transmission reliability of the URLLC service under a multiplexing scene is improved.

However, ULCI cannot be applied to the first type of unlicensed uplink transmission. Because the first type of unlicensed uplink transmission resources are configured in advance by the base station through the RRC signaling, if a service arrives, the terminal does not need to send uplink data directly according to the uplink scheduling signaling, so that the transmission delay of the URLLC service can be greatly reduced.

Similarly, the enhanced uplink power control mechanism is only applicable to dynamically scheduled PUSCH transmission, because enhanced uplink power control means that when an URLLC terminal has an emergency uplink service to transmit and currently available uplink resources are all allocated to the eMBB, the base station can directly schedule URLLC transmission on resources already allocated to the eMBB terminal, at this time, the eMBB service and the URLLC service are transmitted in superposition on the same time-frequency resource, and in order to ensure reliability of the URLLC service, the base station instructs the URLLC terminal to increase transmission power. The uplink power boosting multiplexing mechanism is only suitable for the PUSCH transmission of dynamic scheduling.

To sum up, both the uplink cancellation mechanism and the uplink power control mechanism can solve the multiplexing problem between the dynamically scheduled URLLC transmission and the eMBB transmission between the terminals, but because the first type of unlicensed resources can transmit bursty aperiodic URLLC service data, this means that there may be a part of configured licensed resources that are empty when there is no URLLC transmission, and it is proposed in the URLLC enhancement issue of 5G NR Release18 to optimize the spectrum efficiency by combining uplink unlicensed and dynamic scheduling, for example, to improve the resource utilization rate of the whole system, unlicensed URLLC transmission and dynamically scheduled eMBB transmission can multiplex unlicensed configured resources, so how to improve the reliability of URLLC transmission in this scenario while ensuring the eMBB transmission performance is a problem to be solved.

In order to solve the problems in the prior art, this embodiment provides a multiplexing method for unlicensed URLLC and dynamically scheduled eMBB, where both a downlink control information format and a radio resource control signaling configuration parameter include resource information that resources preconfigured for a URLLC terminal are occupied by an eMBB terminal, so that the URLLC terminal can avoid a conflict between URLLC service transmission and eMBB service transmission by detecting the resource information occupied by the eMBB terminal when data is transmitted in a burst manner. In specific implementation, a Downlink Control Information (DCI) format carrying preset information and a Radio Resource Control (RRC) signaling configuration parameter carrying the preset information, which are sent by a base station, are received; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal; then, determining time-frequency resources occupied by the eMBB terminal according to the Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters; and finally, according to the time frequency resource occupied by the eMBB terminal, obtaining URLLC time frequency resource and transmitting URLLC service data on the URLLC time frequency resource.

Exemplary method

The embodiment provides a multiplexing method of an authorization-free URLLC and dynamic scheduling eMBB, and the method can be applied to a wireless communication intelligent terminal. As shown in fig. 1, the method includes the following steps:

step S100, receiving a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal;

specifically, the URLLC is ultra-high reliable low-latency communication, the eMBB is enhanced mobile broadband, and assuming that the wireless communication device is an ultra-high reliable low-latency communication (URLLC) terminal for obtaining a single set or multiple sets of first-class authorization-free configuration, in order to improve resource utilization of the entire system, the base station schedules transmission of the eMBB terminal to these authorization-free resources. At this time, the URLLC terminal bursts a Physical Uplink Shared Channel (PUSCH), and in order to avoid a collision between URLLC service data and eMBB service data, it is necessary to know in advance resource information that resources preconfigured to the URLLC terminal are occupied by the eMBB terminal, so in the embodiment of the present invention, the URLLC terminal receives information of a new DCI format (i.e., a Downlink Control Information (DCI) format carrying preset information) and a new RRC signaling configuration parameter (i.e., a Radio Resource Control (RRC) signaling configuration parameter carrying preset information) sent by the base station, where the preset information is used to represent resource information that resources preconfigured to the URLLC terminal and acquired during first-type authorization-free transmission configured by the radio resource control signaling are occupied by the eMBB terminal.

In an implementation manner, a naming result of the Downlink Control Information (DCI) format carrying the preset information is different from a naming result of a DCI format of a 3GPP protocol. In this embodiment, a Downlink Control Information (DCI) format carrying preset information is a new group common DCI format, which is named DCI format 2_ x, where x is a number that does not overlap with the naming of the group common DCI format in the current 3GPP protocol, for example, x may not be 0, and 0/1/2/3/4/5/6 exists in the existing protocol. That is, x cannot take 0 to 6. The DCI format 2_ x is used for notifying UE based on the first-class authorization-free configuration under a group of URLLC scenes of pre-allocated time-frequency resources occupied by an eMBB terminal. A Downlink Control Information (DCI) format carrying preset information carries indication information of a plurality of User Equipment (UE), and each UE determines the position of the indication information belonging to the UE according to configuration parameters.

In one implementation, the cyclic redundancy check of the Downlink Control Information (DCI) format carrying the preset information is scrambled by an occupied indication scrambling code. For example: the Cyclic Redundancy Check (CRC) of the DCI format 2_ x is scrambled by an OI-RNTI (Radio Network Identity), which is an occupied indication scrambling code): -ocular indication 1, ocular indication 2, …, ocular indication N, where N indicates the number of UEs.

In one implementation, the indication scrambling code is shared by a plurality of URLLC terminals. For example, -localized indication 1, localized indication 2, …, localized indication N is for a set of unlicensed URLLC user equipments (URLLC UEs), which can save the notification signaling of each UE, multiple UEs share one indication scrambling code, and can also save scrambling code resources.

In one implementation, the capacity of the Downlink Control Information (DCI) format carrying the preset information is configured by Radio Resource Control (RRC). For example, the size (capacity) of the DCI format 2_ x is configured by a higher layer (RRC), and the maximum M bits can be reached, and the M value can be 126. In addition, the size (capacity) of each occupied indication is determined by the occupied payload size (oi-payload size) of the higher layer parameter, which is used for corresponding to a number of OFDM (Orthogonal Frequency-Division Multiplexing) symbols.

In one implementation, the Downlink Control Information (DCI) format carrying the preset information includes occupied indication bit information and time-frequency domain information used for indicating that an authorization-free resource for an RULLC terminal is occupied by an eMBB terminal. For example, the occupied indication bit information is used to inform the URLLC terminal of the unlicensed resource location that it has been occupied by the eMBB terminal. Downlink Control Information (DCI) format DCI format 2_ x carrying preset information is used for notifying UE based on first-class authorization-free configuration under a group of URLLC scenes of pre-allocated time-frequency resources occupied by an eMBB terminal.

In one implementation, the Radio Resource Control (RRC) signaling configuration parameter carrying the preset information is provided with an uplink occupied cell, where the uplink occupied cell is used to configure a URLLC terminal to monitor Downlink Control Information (DCI) scrambled by an occupied indication scrambling code. For example, the new RRC signaling configuration is named as uplink occupied information element, and the uplink occupied cell "uplink occupied" is used to configure the terminal to monitor the downlink control information DCI scrambled by the occupied indication scrambling code (OI-RNTI). In addition, the uplink occupied cell is established and released in a higher layer (RRC) cell "PDCCH-config", which is shown in fig. 2 as an exemplary diagram of an uplink occupied cell (UplinkOccupied).

In one implementation manner, the Radio Resource Control (RRC) signaling configuration parameter carrying the preset information includes: occupied indication scrambling codes, time-frequency sets, Downlink Control Information (DCI) load capacity and occupied configuration information of a serving cell. For example, the Radio Resource Control (RRC) signaling configuration parameter carrying the preset information is named uplink occupied information element, and the uplink occupied cell "uplink occupied" is used to configure the terminal to monitor the downlink control information DCI scrambled by the occupied indication scrambling code OI-RNTI (Radio Network Identity), so the Radio Resource Control (RRC) signaling configuration parameter carrying the preset information includes the occupied indication scrambling code, furthermore, the uplink occupied cell establishes and releases the uplink occupied cell in the higher layer cell "PDCCH-configuration", the uplink occupied cell in the Radio Resource Control (RRC) signaling configuration parameter carrying the preset information includes a field, as shown in fig. 2, the occupied indication scrambling code-RNTI parameter can be configured for the User Equipment (UE), and the occupied indication scrambling code-RNTI is used to monitor the downlink control information format PDCCH (DCI format 2_ DCI _ payload), and the downlink control information payload can be configured as payload 2_ payload Downlink Control Information (DCI) load capacity, such as the payload size M of a DCI format 2_ x message, for example, the maximum of 126 bits of a corresponding field dciPayloadSize may be set; the serving cell occupied configuration information may configure one serving cell set configured to indicate a position of an OI indication value (localized indication) in each serving cell DCI payload, and may configure the oiconfigurationperforservingcell (configured to indicate a position of the OI indication value in each serving cell DCI payload).

In one implementation, the serving cell occupied configuration information includes: serving cell ID, location information of uplink occupied indication in control information (DCI) format, and time-frequency resource indication domain setAnd (6) mixing. Such as configuration: OICONFITIONIONPERSERVING Cell, the set includes service cell index set that can be provided by corresponding serverinCellId and occupied indication (occupied indication) indication field in DCI format 2_ x configured by positionInDCI, and corresponding time frequency resource indication field set, in the embodiment as shown in FIG. 2, positionInDCI represents the start position (expressed in bits) of OI-PayloadSize OI value applicable to this service cell (servingCellId) in DCI payload, takes INTEGER (0.. maxOI-DCI-PayloadSize-1) as INTEGER multiple of OI-PayloadSize, and MaxCI-DCI-PayloadSize = 126. The bit number of the uplink preemption indication is the oi-PayloadSize, and is recorded as

(ii) a the timeDuratioForOI is the occupied time domain length, i.e. the number of occupied OFDM symbols, and is recorded as

. the time GranularityForOI is the number of occupied time domain symbol partitions and is recorded as

I.e. the length of the preempted time domain divided by the number of partitions determines that each bit represents several symbols. The frequency region ForOI is an occupied frequency resource range indication, and the number of Physical Resource Blocks (PRBs) of the occupied indication can be obtained and recorded as

。

After obtaining the Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters, the following steps shown in fig. 1 may be performed: s200, determining time-frequency resources occupied by the eMBB terminal according to the downlink control information format and the radio resource control signaling configuration parameters.

Specifically, a Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters carry resource information used for representing that resources pre-configured to a URLLC terminal, acquired during a first-type authorization-free transmission configured through radio resource control signaling, are occupied by an eMBB terminal; the resource information that the resource pre-configured for the URLLC terminal in the Downlink Control Information (DCI) format and the Radio Resource Control (RRC) signaling configuration parameters is occupied by the eMBB terminal can be analyzed, and the resource information that the resource pre-configured for the URLLC terminal in the Downlink Control Information (DCI) format and the Radio Resource Control (RRC) signaling configuration parameters is occupied by the eMBB terminal can also be obtained in a decoding mode. Correspondingly, the determining time-frequency resources occupied by the eMBB terminal according to the Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters comprises the following steps:

s201, detecting a physical downlink control channel carrying a downlink control information format;

s202, analyzing the physical downlink control channel to obtain information transmitted in a downlink control information format;

s203, according to the configuration parameters of the radio resource control signaling, the information transmitted in the downlink control information format is decoded by adopting the occupied indication scrambling code, and the time-frequency resource occupied by the eMBB terminal is obtained.

Specifically, a physical downlink control channel carrying a Downlink Control Information (DCI) format is detected first; then, analyzing the physical downlink control channel to obtain information for analyzing Downlink Control Information (DCI) format transmission; and finally, decoding the information transmitted in the downlink control information format by adopting the occupied indication scrambling code according to the Radio Resource Control (RRC) signaling configuration parameters to obtain the time-frequency resource occupied by the eMBB terminal. In the present embodiment, from

MSB of bits (most Significant bit)

Bit set and

group symbol one-to-one mapping, wherein

Each symbol group in the symbol group comprises

One symbol, last

Each symbol group in the symbol group comprises

A symbol. The UE determines the symbol duration according to the subcarrier interval configuration of the activated downlink BWP (Bandwidth part) of the monitored PDCCH DCI format 2_ x. The correspondence between subcarrier spacing configuration and symbol duration may be known from 3GPP TS 38.211. For example: if the sub-carrier spacing is configured to be 30kHz, then 1 frame will have 1ms and 1 frame will have 2 slots, with 1 slot having 14 symbols each with a duration of 0.5/14=1/28 ms. In MSB of each bit set for each group of symbols

Position and

groups (Physical resource blocks) are mapped one by one. Wherein front is

Each PRB group of the PRB groups includes

PRB, last

Each PRB group of the PRB groups includes

A PRB. The detected DCI format 2_ x content of the user equipment UE utilizes the above ruleThe specific resource of the URLLC terminal occupied by the eMBB terminal is obtained. Now, for example, by using multiple sets of first type authorization-free configured URLLC terminals, if each occupied indicator of DCI field indicates the corresponding bit number

Number of packets in time zone

Detecting the number of symbols in the reference time zone in the symbols of the uplink OI

Number of PRBs for canceling instruction

Then, then

7 groups each comprising

A symbol. Number of PRB groups

，

And the number of PRBs contained in each of the 2 PRB groups is 50. If the eMBB terminal has occupied the time domain resource of the URLLC terminal by 4 symbols, i.e.

symbols

2, 3, 4, 5, then the occupied indication bit of the DCI2_ x at this time is b0b1b2b3b4b5b6b7b8b9b10b11b12b13 value is 00111100000000, as shown in fig. 3.

After the time-frequency resources occupied by the eMBB terminal are obtained, the following steps shown in fig. 1 may be performed: s300, according to the time frequency resource occupied by the eMBB terminal, obtaining URLLC time frequency resource and transmitting URLLC service data on the URLLC time frequency resource.

Specifically, after the eMMC terminal occupies the time-frequency resources, the overlapping area of the time-frequency resources occupied by the eMMC terminal and the time-frequency resources occupied by the eMMC terminal can be avoided, so that URLLC time-frequency resources are obtained, and therefore, data service conflict can not be sent when URLLC service data is transmitted on the URLLC time-frequency resources. Correspondingly, the step of obtaining the URLLC time-frequency resource and transmitting URLLC service data on the URLLC time-frequency resource according to the time-frequency resource occupied by the eMBB terminal includes the following steps:

s301, obtaining a first type of authorization-free configuration resource of a first type of authorization-free configuration;

s302, obtaining URLLC time-frequency resources according to the first-class authorization-free configuration resources and the time-frequency resources occupied by the eMBB terminal;

and S303, transmitting URLLC service data on the URLLC time-frequency resource.

In practical use, there are generally two usage scenarios (in the present invention, the two usage scenarios are the same from step S100 to step S200, but different from step S300): firstly, in order to obtain a single set of URLLC terminals with first class of authorization-free configuration, a base station schedules transmission of an eMBB terminal to these authorization-free resources in order to improve the resource utilization rate of the whole system; and secondly, in order to obtain a plurality of sets of URLLC terminals configured without authorization of the first class, the base station schedules the transmission of the eMBB terminal to the resources without authorization in order to improve the resource utilization rate of the whole system. Therefore, a first type of authorization-free configuration resource of the URLLC terminal needs to be acquired first; then obtaining URLLC time-frequency resources according to the first-class authorization-free configuration resources and the time-frequency resources occupied by the eMBB terminal; the URLLC time-frequency resources comprise a target initial transmission opportunity and a transmission opportunity of a target URLLC terminal, and the corresponding URLLC time-frequency resources comprise the target initial transmission opportunity and the target URLLC terminal, and the URLLC time-frequency resources are obtained according to the first type of authorization-free configuration resources, the eMBB terminal occupied time-frequency resources and the data arrival opportunity, and the method comprises the following steps: when the first type of authorization-free configuration resources are a single set, selecting a transmission opportunity which has the minimum time distance from the data arrival opportunity and does not include the data arrival opportunity from all transmission opportunities as a target initial transmission opportunity on the premise of not overlapping with time-frequency resources occupied by an eMB B terminal; and when the first type of authorization-free configuration resources are a plurality of sets, selecting the set of authorization-free resource configuration which has the minimum time distance with the data arrival time and the repeated transmission times which are the preset times and do not overlap with the time-frequency resources occupied by the eMB terminal as the transmission time of the target URLLC terminal under the condition of meeting the preset time delay. And finally, transmitting URLLC service data on the URLLC time-frequency resource. In one implementation, a transmission opportunity or transmission configuration or power-up transmission closest to a URLLC trigger is determined according to a time domain position of an occupied unlicensed resource, and if a URLLC terminal is provided with a single set of unlicensed resource configurations, the URLLC terminal preferentially selects an unlicensed resource (condition a) not occupied by an eMBB terminal and a closest initial transmission opportunity (condition B) to transmit URLLC service data after preparing data, where the closest initial transmission opportunity refers to a transmission opportunity that is the smallest in time within all transmission opportunities after the condition a is satisfied. The latest initial transmission opportunity needs to meet the time delay requirement of the URLLC service; if the URLLC terminal is provided with a plurality of sets of authorization-free resource configurations, the URLLC terminal preferentially selects the authorization-free transmission configuration (the URLLC terminal) which is closest to the time after the URLLC terminal prepares the data in time distance and is possible to repeatedly transmit K times without overlapping with the resources occupied by eMBB under the condition of meeting the time delay requirement to carry out URLLC service data transmission after the URLLC terminal prepares the data. The multiple sets of unlicensed transmission configurations configured for the same service have the same time domain period, transmission opportunity size, repeated transmission times, MCS and the like, but the transmission opportunities of different unlicensed configurations are staggered in the time domain.

Example one

When the first type of unlicensed configuration resources are multiple sets, determining, according to the time domain position of the occupied unlicensed resources, an unlicensed transmission configuration that is not overlapped with the occupied unlicensed resources and is closest to the URLLC trigger, that is, after the terminal prepares data, it may select and use an unlicensed transmission configuration that is closest in time, may repeat transmission K times (the K value in the following embodiment is 4), and is not overlapped with the occupied resources of the eMBB. That is, it is assumed that URLLC terminal time domain call granularity is 2 symbols and is configured as 4 sets of first type authorization-exempt configurations, as shown in fig. 4. Assuming that URLLC data arrives at transmission opportunity 1 of the 1 st set of configuration, the URLLC terminal may select to transmit URLLC traffic on the 2 nd and 3 rd sets of configurations that are temporally closest to the symbol 5 and the symbol 2 of the grant-free transmission configuration that does not overlap with the resources occupied by the eMBB, because URLLC takes time to prepare a packet when arriving at transmission opportunity 1 of the first set of configuration, and it will generally be transmitted at the next transmission opportunity. In addition, the reason for repeating the transmission K times is that a set of configurations includes a plurality of transmission opportunities, and each transmission opportunity in each set of configurations can be used to transmit the original data or the redundancy version of the original data. In order to further improve URLLC service transmission reliability and ensure the transmission performance of the eMBB terminal. Assuming that URLLC data arrives at transmission opportunity 1 of the 1 st set of configuration, if there is no authorization-exempt configuration resource of the URLLC that the eMBB has occupied, after the URLLC terminal prepares the data, it may generally select to start transmission at transmission opportunity 1 of the 2 nd set of configuration, and when there is a situation that the eMBB has occupied authorization-exempt configuration resource of the URLLC and the occupied time domain resource is symbol 2/3/4/5 as in the above example, if the URLLC terminal cannot sense the occupied resource of the eMBB terminal, it may cause overlapping of the two transmission resources and mutual interference, so in the embodiment of the present invention, on the premise that the delay is allowed, transmission opportunity 1 of the 4 th set of configuration may be selected to perform 1 st repeated transmission, so as to avoid the situation that the resource of the URLLC terminal collides with the eMBB resource, and finally, a multiplexing transmission mechanism between the eMBB terminal and the authorization-exempt URLLC terminal is shown in fig. 5. Wherein, the ULOI is an uplink occupied indication, a monitoring occasion of the uplink occupied indication is configured each time the eMBB terminal schedules the PUSCH, once an unlicensed resource is occupied, a corresponding uplink occupied indication (ULOI) can be detected, and then the URLLC transmission resource is determined according to the indicated resource.

Example two

When the first type of unlicensed configuration resource is a single set, assuming that an occupied indication bit of DCI2_ x for the URLLC terminal is 00110000000000, the eMBB terminal occupies symbols 2 and conforms to 3. In the step of determining time-frequency resources of URLLC uplink service transmission and sending URLLC service data by the URLLC terminal, the transmission timing of a single set of first type authorization-free configured URLLC service under the condition of resource conflict is determined as shown in fig. 6, where repK-RV in the figure means that the repeated transmission version of PUSCH is 0000, meaning that PUSCH can start transmission from any transmission timing. Therefore, according to the method of the present invention, URLLC data is selected to be transmitted for the first time at transmission opportunity 3 and is transmitted repeatedly for 2 times (repeated transmission is performed from transmission opportunity 1 to transmission opportunity 4), the transmission method can reduce the probability of resource conflict between URLLC and eMBB, avoid interference of mutual transmission caused by multiplexing of URLLC service and eMBB service on time-frequency resources, and improve the transmission reliability of the service.

In an implementation manner, the URLLC terminal of the present invention interacts with data of a base station, a system interaction signaling diagram is shown in fig. 7, the base station sends DCI format 0_1 to an eMBB UE, indicates that PUSCH1 is scheduled on a first type of unlicensed resource of the URLLC terminal, and sends a group common DCI format 2_ x to the occupied first type of unlicensed resource of the URLLC terminal, and the URLLC UE selects to transmit URLLC service data on a suitable unlicensed resource configuration under the condition of time delay allowance. For a certain UE, the position of occupied indication OI in DCI format 2_ X (see positionInDCI in higher layer signaling) corresponding to the cell ID (ServCellIndex in higher layer signaling) is used, so that when the UE works in a certain cell, it can know which bit fields of DCI format 2_ X the OI corresponding to the cell is in, and after receiving DCI format 2_ X, it can determine which resource fields are occupied by the eMBB service terminal. The DCI format 2_ X is designed to face a Group of URLLC UEs in order to save signaling overhead, which also means that OI indication information is carried in the Group-common DCI format and scrambled with the occupied indication scrambling code OI-RNTI, such as the OI-RNTI configuration value in higher layer signaling. The users configured with the oi-RNTI can detect the DCI format scrambled by the oi-RNTI so as to determine the authorization-free resources occupied by the eMBB service terminal.

The invention is characterized in that:

the URLLC terminal receives a new DCI format and new RRC signaling configuration sent by the base station and determines a URLLC service data transmission strategy by combining single set or multiple sets of authorization-free resource configuration, wherein the received information is used for informing a group of authorization-free URLLC terminals based on Type1 whether authorization-free resources of the URLLC terminals are occupied or occupied by eMBB terminals; the URLLC terminal decodes the DCI according to the specific RNTI; and the URLLC terminal determines resources for URLLC service transmission and transmits the resources. The URLLC terminal determines the resources used for URLLC service transmission by adopting the following preset rules: and determining the transmission opportunity or the authorization-free transmission configuration closest to the URLLC service trigger according to the time domain position of the occupied authorization-free resource, and determining the URLLC service transmission resource. Wherein, the time domain position of the occupied authorization-free resource is obtained according to the detection of the new DCI format. The new DCI format for notifying the URLLC terminal is designed by adopting the following modes: the DCI format contains occupied indication bit information for indicating the situation that the authorization-free resource of the corresponding URLLC terminal is occupied.

The high-layer RRC signaling comprises an oi-RNTI value, a time-frequency set, a DCI load size and occupied configuration information of a serving cell, wherein the occupied configuration of the serving cell comprises a serving cell ID, and the occupied position information of the current UE is indicated in DCI2_ x.

Exemplary device

As shown in fig. 8, the present invention also provides a base station for implementing multiplexing between uplink data terminals, and the base station sends a new RRC high level cell configuration and a new DCI format to the terminals.

As shown in fig. 9, an embodiment of the present invention provides a multiplexing apparatus for unlicensed URLLC and dynamic scheduling eMBB, where the apparatus includes a receiving module, an eMBB terminal occupied time-frequency resource determining module, and a URLLC service data transmission module, where:

the receiving module is used for receiving a Downlink Control Information (DCI) format carrying preset information and a Radio Resource Control (RRC) signaling configuration parameter carrying the preset information, which are sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal;

the eMB B terminal occupation time-frequency resource determining module is used for determining the eMB terminal occupation time-frequency resource according to the Downlink Control Information (DCI) format and the Radio Resource Control (RRC) signaling configuration parameter;

In this embodiment, a receiving module receives a Downlink Control Information (DCI) format carrying preset information and a Radio Resource Control (RRC) signaling configuration parameter carrying the preset information, which are sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal; determining time-frequency resources occupied by the eMBB terminal according to the Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters by an eMBB terminal occupation time-frequency resource determination module; and obtaining URLLC time-frequency resources through a URLLC service data transmission module according to the time-frequency resources occupied by the eMBB terminal, and transmitting URLLC service data on the URLLC time-frequency resources. In the embodiment of the invention, the downlink control information format and the radio resource control signaling configuration parameter both comprise the resource information of the resource pre-configured to the URLLC terminal and occupied by the eMBB terminal, so that the URLLC terminal can avoid the conflict between the URLLC service transmission and the eMBB service transmission by detecting the resource information occupied by the eMBB terminal when the data is transmitted in a burst way.

Based on the above embodiments, the present invention further provides an intelligent terminal, and a schematic block diagram thereof may be as shown in fig. 10. The intelligent terminal comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein, the processor of the intelligent terminal is used for providing calculation and control capability. The memory of the intelligent terminal comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the intelligent terminal is used for being connected and communicated with an external terminal through a network. The computer program is executed by a processor to implement a method for reuse of unlicensed URLLC with dynamic scheduling eMBB. The display screen of the intelligent terminal can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the intelligent terminal is arranged inside the intelligent terminal in advance and used for detecting the operating temperature of internal equipment.

It will be understood by those skilled in the art that the schematic diagram of fig. 10 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the intelligent terminal to which the solution of the present invention is applied, and a specific intelligent terminal may include more or less components than those shown in the figure, or combine some components, or have different arrangements of components.

In one embodiment, an intelligent terminal is provided that includes a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:

receiving a Downlink Control Information (DCI) format carrying preset information and a Radio Resource Control (RRC) signaling configuration parameter carrying the preset information, which are sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal;

determining time-frequency resources occupied by an eMBB terminal according to the Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters;

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

In summary, the present invention discloses a multiplexing method and apparatus for unlicensed URLLC and dynamic scheduling eMBB, the method includes: the embodiment of the invention firstly receives a Downlink Control Information (DCI) format carrying preset information and a Radio Resource Control (RRC) signaling configuration parameter carrying the preset information, which are sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal; then, determining time-frequency resources occupied by the eMBB terminal according to the Downlink Control Information (DCI) format and Radio Resource Control (RRC) signaling configuration parameters; finally, according to the time frequency resource occupied by the eMBB terminal, obtaining URLLC time frequency resource and transmitting URLLC service data on the URLLC time frequency resource; it can be seen that, in the embodiment of the present invention, both the downlink control information format and the radio resource control signaling configuration parameter include resource information that resources pre-configured to the URLLC terminal are occupied by the eMBB terminal, so that the URLLC terminal can avoid a conflict between URLLC service transmission and eMBB service transmission by detecting the resource information occupied by the eMBB terminal when transmitting data in a burst manner.

Based on the above embodiments, the present invention discloses a method for multiplexing an unlicensed URLLC with dynamic scheduling eMBB, it should be understood that the application of the present invention is not limited to the above examples, and it will be obvious to those skilled in the art that modifications and changes may be made according to the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.

Claims

1. A multiplexing method of an authorization-free URLLC and an eMBB is characterized by comprising the following steps:

receiving a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal; wherein, the configuration parameters of the radio resource control signaling carrying the preset information include: occupied indication scrambling codes, time-frequency sets, downlink control information load capacity and occupied configuration information of a service cell;

2. The multiplexing method of the license-exempt URLLC and the dynamic scheduling eMBB of claim 1, wherein the naming result of the downlink control information format carrying the preset information is different from the naming result of the DCI format of the 3GPP protocol.

3. The multiplexing method of the URLLC and the eMBB according to claim 1, wherein the CRC of the downlink control information format carrying the preset information is scrambled by an occupied indication scrambling code.

4. The method for multiplexing unlicensed URLLC with dynamically scheduled eMBB according to claim 3, wherein the indication scrambling code is shared by multiple URLLC terminals.

5. The multiplexing method of claim 1, wherein the capacity of the downlink control information format carrying the preset information is configured by Radio Resource Control (RRC).

6. The multiplexing method of claim 1, wherein the downlink control information format carrying the preset information comprises occupied indication bit information and time-frequency domain information indicating that an unlicensed resource for a RULLC terminal is occupied by an eMBB terminal.

7. The multiplexing method of the unlicensed URLLC and the dynamically scheduled eMBB as claimed in claim 1, wherein the radio resource control signaling configuration parameter carrying the preset information is provided with an uplink occupied cell, and wherein the uplink occupied cell is used to configure the URLLC terminal to monitor the downlink control information scrambled by the occupied indication scrambling code.

8. The method of claim 6, wherein the serving cell occupied configuration information comprises: the service cell ID, the position information of the uplink occupied indication in the control information format and a time frequency resource indication domain set.

9. The multiplexing method for unlicensed URLLC and dynamically scheduled eMBB according to claim 1, wherein said determining that an eMBB terminal occupies time-frequency resources according to the downlink control information format and radio resource control signaling configuration parameters includes:

detecting a physical downlink control channel carrying the downlink control information format;

10. The multiplexing method of the unlicensed URLLC and the dynamically scheduled eMBB of claim 1, wherein the obtaining of URLLC time-frequency resources and the transmission of URLLC service data on the URLLC time-frequency resources according to the time-frequency resources occupied by the eMBB terminal comprises:

obtaining a first type of authorization-free configuration resource of a URLLC terminal;

and transmitting URLLC service data on the URLLC time-frequency resource.

11. The multiplexing method of the unlicensed URLLC and the dynamically scheduled eMBB according to claim 9, wherein the obtaining of URLLC time-frequency resources according to the first-class unlicensed configuration resources and the time-frequency resources occupied by the eMBB terminal includes:

reading the data arrival time of the URLLC service data;

12. The multiplexing method of claim 10, wherein the URLLC time-frequency resources include a target initial transmission opportunity and a transmission opportunity of a target URLLC terminal; the obtaining of the URLLC time frequency resource according to the first-class authorization-free configuration resource, the eMBB terminal occupied time frequency resource and the data arrival time comprises:

13. The utility model provides a multiplexing device of exempting from to authorize URLLC and dynamic scheduling eMMC, its characterized in that, the device includes receiving module, eMMC terminal occupy time frequency resource confirm module and URLLC business data transmission module, wherein:

the receiving module is used for receiving a downlink control information format carrying preset information and a radio resource control signaling configuration parameter carrying the preset information, which are sent by a base station; the preset information is used for representing resource information which is acquired during first-class authorization-free transmission configured through a radio resource control signaling and is occupied by an eMMC terminal and pre-configured to a URLLC terminal; wherein, the configuration parameters of the radio resource control signaling carrying the preset information include: occupied indication scrambling codes, time-frequency sets, downlink control information load capacity and occupied configuration information of a service cell;

14. An intelligent terminal comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory, and wherein the one or more programs being configured to be executed by the one or more processors comprises instructions for performing the method of any of claims 1-12.

15. A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the method of any of claims 1-12.