CN116419241A

CN116419241A - Monitoring control channel indication method and device, communication device and storage medium

Info

Publication number: CN116419241A
Application number: CN202111670902.2A
Authority: CN
Inventors: 许森; 刘悦; 郑成林; 熊尚坤; 信金灿
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-11

Abstract

The present disclosure provides a listening control channel indication method and apparatus, a communication apparatus, and a computer-readable storage medium. The method comprises the following steps: the separation entity receives first user configuration information sent by the centralized entity and maps carrier resources which can be configured by the terminal on a first carrier; sending a second RRC message to the terminal to instruct the terminal to configure the first carrier resource; transmitting a fourth RRC message to the terminal to indicate the monitoring position of the wake-up signal of the terminal, wherein the first carrier control channel monitoring resource set configuration comprises the frequency domain position and the time domain monitoring position of the wake-up signal; and sending wake-up indication scheduling information to the terminal to indicate the monitoring configuration of the next DRX activation period of the terminal, or indicating the first carrier resource corresponding to the next DRX activation period through the MAC CE, thereby solving the limitation that the wake-up signal of the terminal can only appear on the main carrier under the condition of multiple carrier configuration and improving the control channel capacity and the allocation flexibility.

Description

Monitoring control channel indication method and device, communication device and storage medium

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a method and apparatus for monitoring control channel indication, a communication apparatus, and a computer readable storage medium.

Background

In the deployment process of a first-generation communication system, operators gradually increase corresponding carriers to meet the requirements of users on capacity and coverage, and more frequency spectrums are introduced into the 5G network to meet the use requirements of the 5G network. In general, a carrier aggregation mode is adopted for a plurality of carrier networks, so that a plurality of carriers are configured for a terminal at the same time, the peak throughput of the terminal is improved, and a certain coverage gain can be obtained at the cell edge through the uplink of a low-frequency carrier. It should be noted that, for a single carrier, the carrier aggregation technology requires a plurality of sets of transceivers to be supported, so that the power consumption of the terminal is relatively high.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the disclosure and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure aims to provide a data transmission method, a data transmission device and a storage medium, which at least overcome the problem of how to realize BWP flexible scheduling of uplink multiple carriers by a terminal in related technology to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a listening control channel indication method performed by a network device including a centralized entity and a separate entity, comprising:

the separation entity receives first user configuration information sent by the centralized entity, wherein the first user configuration information comprises a first Radio Resource Control (RRC) message;

the separation entity maps carrier resources which can be configured by the terminal on a first carrier based on the first user configuration information, and generates a second RRC message according to the first RRC message; transmitting the second RRC message to the terminal to instruct the terminal to configure first carrier resources, wherein the second RRC message comprises first carrier resource configuration information;

the separation entity determines a fourth RRC message according to the third RRC message sent by the concentration entity, and sends the fourth RRC message to the terminal to indicate the monitoring position of the wake-up signal of the terminal, wherein the fourth RRC message comprises a first carrier control channel monitoring resource set configuration, and the first carrier control channel monitoring resource set configuration comprises a frequency domain position and a time domain monitoring position of the wake-up signal;

And the separation entity sends wakeup indication scheduling information to the terminal to indicate the monitoring configuration of the next Discontinuous Reception (DRX) activation period of the terminal, or indicates a first carrier resource corresponding to the next DRX activation period through a Media Access Control (MAC) control unit (CE).

In one embodiment, the first user configuration information includes first carrier configuration information, secondary carrier configuration information, and the first RRC message.

In one embodiment, the first RRC message includes:

secondary carrier configuration list information, wherein the configuration information of each carrier includes: carrier number, SSB frequency point of carrier, bandwidth of carrier, subcarrier spacing SCS of carrier;

and the first carrier configuration adding list comprises a first carrier configuration identification.

In one embodiment, the second RRC message includes:

first carrier resource configuration information, secondary carrier configuration information, a first carrier configuration identification currently used, and DRX configuration parameters,

the first carrier resource configuration information of the second RRC message includes: a first carrier configuration identification, a downlink configuration, and a physical downlink control channel PDCCH configuration information list,

The secondary carrier configuration information of the second RRC message includes: carrier number, SSB frequency point of carrier, bandwidth of carrier, SCS of carrier, partial bandwidth BWP configuration list, and PDCCH configuration information.

In one embodiment, the first carrier resource configuration information of the second RRC message further includes a time division duplex, TDD, frame structure configuration.

In one embodiment, the third RRC message includes:

wake-up signal configuration indication information; and

the first carrier indicates information.

In one embodiment, the fourth RRC message includes:

the method comprises the steps of a first carrier configuration identification, a starting bit position of symbol information transmitted by a user in DCI, an information size transmitted by the user in DCI, a carrier list available for a wake-up signal, a PDCCH frequency domain number used by the wake-up signal, a time domain offset of the wake-up signal and a processing minimum offset of the wake-up signal.

In one embodiment, the first wake-up indication information includes:

wake-up indication information and scheduling resource configuration information.

In one embodiment, the method further comprises:

the centralized entity determines to add a plurality of carriers to the terminal according to configuration or a measurement result of the terminal;

And determining that the terminal supports mapping of multi-carrier to virtual carrier through terminal capability, and generating the first RRC message for user configuration.

In one embodiment, the receiving, by the separation entity, the first user configuration information sent by the centralized entity includes:

the separation entity receives the first user configuration information sent by the centralized entity through a user context modification message.

In one embodiment, the separating entity generating the second RRC message from the first RRC message includes:

and the separation entity fills the relevant configuration of the first carrier wave in the first RRC message according to the physical layer configuration of the separation entity to form the second RRC message.

In one embodiment, the method further comprises:

after receiving the second RRC message, the terminal configures a first carrier resource, determines that the terminal needs to start up uplink and downlink physical carriers and corresponding terminal antennas and radio frequency configuration, and for downlink carriers which are not in a BWP range, the terminal does not configure wireless, antenna and radio frequency resources on the carriers.

In one embodiment, the configuring the first carrier resource includes:

storing auxiliary carrier configuration list information;

If the first carrier configuration adding list information is carried, for each first carrier configuration:

determining the virtual downlink range in each configuration, wherein the frequency domain resources of BWP of the carrier are mapped into one virtual downlink BWP according to the carrier number in the same downlink configuration in a sequential arrangement mode, and the total bandwidth of the virtual BWP is equal to the sum of the bandwidths of all the carrier BWPs in the downlink configuration;

and storing the corresponding PDCCH resources in each downlink carrier configuration.

And determining the first carrier configuration currently used by the terminal according to the first carrier configuration identification information currently used.

In one embodiment, the method further comprises:

after the terminal configures the first carrier, the RRC reconfiguration message confirmation configuration is successfully sent to the separation entity;

and after receiving the RRC reconfiguration message sent by the terminal, the separation entity determines that the first carrier configuration is completed to the centralized entity.

In one embodiment, the method further comprises:

the centralized entity determines that the terminal needs energy-saving operation and generates a third RRC message sent to the terminal;

the centralized entity sends the third RRC message to the separate entity in a downlink RRC messaging DL RRC MESSAGE TRANSFER message.

In one embodiment, the method further comprises:

and after receiving the fourth RRC message, the terminal determines the frequency domain position and the time domain monitoring position of the wake-up monitoring signal.

In one embodiment, the determining the frequency domain location and the time domain listening location of the wake-up listening signal comprises:

determining the frequency domain position of the wake-up signal according to BWP of the first carrier and PDCCH frequency domain signals used by the wake-up signal;

and determining a time domain monitoring position of the wake-up signal according to the DRX activation period starting position T1 determined by taking the subframe boundary of the maximum subcarrier in the virtual BWP as a reference and the time domain offset T2 of the wake-up signal.

In one embodiment, the method further comprises:

the separation entity determines the number of PRBs used in the next DRX period and a physical carrier list for scheduling according to whether data service scheduling exists in an uplink buffer and a downlink buffer of the terminal, generates the wake-up indication scheduling information corresponding to the terminal,

the separation entity places the wake-up indication scheduling information in downlink control information and sends it to the terminal.

In one embodiment, the method further comprises:

the separation entity adjusts the frequency domain position of the wake-up signal according to the load or coverage condition of the control channel of the first carrier wave, and sends the wake-up monitoring frequency domain adjustment signal to the terminal to indicate the frequency domain position of the wake-up signal in the next wake-up signal period of the terminal,

Wherein the wake-up listening frequency domain adjustment signal comprises: the user identification and the location of the wake-up signal.

In one embodiment, the method further comprises:

and the terminal monitors the control resource set CORESET resource position where the first wake-up signal is located at the first moment position, acquires DCI indication information, and when the wake-up indication information is 0 in the next DRX activation period, the terminal side closes the wireless and radio frequency resources in the downlink BWP and the corresponding uplink BWP, when the wake-up indication information is 1, determines the physical carrier wave of the wireless and radio frequency resources which are required to be configured in the next period according to the resource configuration information, and for the physical carrier wave entering the dormant state, the wireless and radio frequency related resources configured by the downlink carrier wave are not applicable in the next period.

In one embodiment, the method further comprises:

after receiving the MAC CE information sent by the separation entity, the terminal determines the frequency domain position adopted by the wake-up signal when the next wake-up signal period arrives according to the configuration information in the MAC CE information.

According to another aspect of the present invention, there is provided a listening control channel indication method performed by a terminal, including:

the method comprises the steps that a terminal sends capability reporting information to network equipment, wherein the capability reporting information comprises configurable carrier resources of the terminal;

The terminal receives a second RRC message sent by the network equipment, wherein the second RRC message comprises first carrier resource configuration information;

the terminal configures a first carrier resource according to the first carrier resource configuration information;

the terminal receives a fourth RRC message sent by the network equipment, and determines the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message;

the terminal receives the wake-up indication scheduling information sent by the network equipment, and determines the monitoring configuration of the next DRX activation period according to the wake-up indication scheduling information, or determines the first carrier resource corresponding to the next DRX activation period through the MAC CE.

In one embodiment, the receiving, by the terminal, a fourth RRC message sent by the network device, and determining, according to the fourth RRC message, a frequency domain location and a time domain listening location of the wake-up signal includes:

the terminal receives a fourth RRC message sent by the separation entity;

the terminal determines BWP of a first carrier according to the first carrier configuration information, determines the starting positions of the mapped physical carrier and physical PRB according to the PDCCH frequency domain number of the wake-up signal, and

the terminal determines a starting position T1 of a DRX activation period according to a subframe boundary of a maximum subcarrier in the virtual BWP as a reference, and determines a starting point of monitoring time as T1-T2 according to a time domain offset T2 of the wake-up signal.

In one embodiment, the method for determining whether to wake up according to the wake-up indication scheduling information includes:

the terminal receives downlink control information sent by the separation entity, wherein the downlink control information comprises the wakeup indication scheduling information;

the terminal determines the next DRX activation period according to the wake-up indication scheduling information:

when the wake-up indication information is 0, the terminal turns off wireless and radio frequency resources in the downlink BWP and the corresponding uplink BWP,

and when the wake-up indication information is 1, the terminal configures physical carriers of downlink wireless and radio frequency resources in the next period according to the first carrier configuration information.

In one embodiment, the method further comprises:

the terminal receives the wake-up monitoring frequency domain adjusting signal sent by the separation entity, and determines the frequency domain position of the wake-up signal in the next wake-up signal period according to the wake-up monitoring frequency domain adjusting signal.

In one embodiment, the method further comprises: and the terminal sends an RRC reconfiguration message to the network equipment to confirm successful configuration.

According to still another aspect of the present disclosure, there is provided a listening control channel indicating device, including:

A user configuration receiving unit, configured to receive first user configuration information sent by the centralized entity, where the first user configuration information includes a first RRC message;

a carrier configuration sending unit, configured to map carrier resources configurable by a terminal on a first carrier based on the first user configuration information, and generate a second RRC message according to the first RRC message; transmitting the second RRC message to the terminal to instruct the terminal to configure first carrier resources, wherein the second RRC message comprises first carrier resource configuration information;

a monitoring position sending unit, configured to determine a fourth RRC message according to the third RRC message sent by the centralized entity, and send the fourth RRC message to the terminal to indicate a monitoring position of the terminal wake-up signal, where the fourth RRC message includes a first carrier control channel monitoring resource set configuration, and the first carrier control channel monitoring resource set configuration includes a frequency domain position and a time domain monitoring position of the wake-up signal;

and the wake-up scheduling sending unit is used for sending wake-up indication scheduling information to the terminal so as to indicate the monitoring configuration of the next DRX activation period of the terminal, or indicating the first carrier resource corresponding to the next DRX activation period through the MAC CE.

a terminal capability reporting unit, configured to send capability reporting information to a network device, where the capability reporting information includes a configurable carrier resource of the terminal;

a carrier configuration receiving unit, configured to receive a second RRC message sent by the network device, where the second RRC message includes first carrier resource configuration information;

a carrier resource allocation unit, configured to allocate a first carrier resource according to the first carrier resource allocation information;

a monitoring position receiving unit, configured to receive a fourth RRC message sent by the network device, and determine a frequency domain position and a time domain monitoring position of the wake-up signal according to the fourth RRC message;

the wake-up indication receiving unit is used for receiving wake-up indication scheduling information sent by the network equipment, determining a monitoring configuration of a next DRX activation period according to the wake-up indication scheduling information, or determining a first carrier resource corresponding to the next DRX activation period through the MAC CE.

According to one aspect of the present disclosure, there is provided a communication apparatus comprising: at least one processor; and at least one memory for storing executable instructions of the processor; wherein the processor is configured to perform any of the above listening control channel indication methods via execution of the executable instructions.

According to one aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the listening control channel indication method of any one of the above.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1A shows a schematic diagram of a related art uplink supplemental link;

FIG. 1B is a schematic diagram illustrating the operation principle of a wake-up signal in the related art;

FIG. 1C shows a schematic diagram of a related art PS-OFFSET and search set;

fig. 1D shows a related art multi-carrier state transition diagram;

fig. 1E shows a schematic diagram of an SCC sleep mode in a related art multicarrier;

Fig. 2 shows a schematic diagram of a communication system of a data transmission method of an embodiment of the present disclosure;

FIG. 3 shows a flow diagram of a data transmission method in an embodiment of the disclosure;

FIG. 4 shows another flow diagram of a data transmission method in an embodiment of the present disclosure;

FIG. 5 shows a flow diagram of a data transmission method in an embodiment of the present disclosure;

FIG. 6 shows another flow diagram of a data transmission method in an embodiment of the present disclosure;

FIG. 7A is another flow chart of a data transmission method in an embodiment of the disclosure;

fig. 7B illustrates a total bandwidth schematic of a virtual BWP in an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a data transmission device according to an embodiment of the disclosure; and

fig. 9 is a schematic structural diagram of another data transmission device according to an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

The following table is the english original text and chinese translation corresponding to the partial english abbreviation appearing herein:

TABLE 1

Currently, the multiple spectrums form a spectrum resource pool, which can have the following advantages:

is beneficial to flexible collocation between uplink and downlink: in a 5G network, there is a bundling relationship between uplink and downlink of the same carrier, with the introduction of a supplementary uplink technology (Supplementary Uplink, SUL), fig. 1A shows a schematic diagram of uplink supplementary link of the related art, and as shown in fig. 1A, one downlink carrier may be mapped to two uplink carriers, so that the bundling relationship between uplink and downlink is gradually decoupled. From the aspect of performance analysis, a high frequency downlink is matched with a low frequency uplink, and for some services, better coverage and service experience can be provided.

The limitation of the main carrier to mobility is removed: from the 4G era, carrier aggregation has a concept of a main carrier in the use process, and protocol design includes mobility, access layer security and the like which have binding relation with the main carrier. The switching of the main carrier cannot be performed in a faster way, and is usually required to be replaced through RRC signaling, so that interruption time delay of a service layer is necessarily brought.

In order to solve the problem of high power consumption of the 5G terminal, the 3GPP better adapts to the service requirement, the 3GPP develops the standardized work of terminal energy conservation in Rel-16, and the UE in the RRC connection state can be configured with a wake-up signal by a network so as to further achieve the purpose of saving electricity. The wake-up signal is a method for effectively reducing the invalid monitoring PDCCH of the terminal, and acts on the connected DRX. In the indication of the wake-up signal, the UE may or may not monitor the PDCCH corresponding to the DRX cycle, and fig. 1B illustrates a schematic diagram of the wake-up signal working principle of the related art, as shown in fig. 1B. The wake-up signal is indicated by DCI, and from a frequency domain point of view, the CORESET configuration of the wake-up signal follows the CORESET configuration of R15. The network may configure the CORESET and the search space corresponding to the wake-up signal for any one of the downlink BWP of the UE. If the currently activated downlink BWP is configured with a search space for receiving a wake-up signal, the UE needs to blindly check the wake-up signal at a corresponding location. When determining the monitoring position of the wake-up signal in the time domain, firstly, the UE determines candidate monitoring positions according to configuration information of a search space associated with the wake-up signal. Fig. 1C is a schematic diagram of a PS-OFFSET and a search set in the related art, as shown in fig. 1C, and then a time range is determined according to ps_offset and minimum OFFSET, and the candidate monitoring positions falling in the time range are the final monitoring positions, and there are two parameters to control the starting range of the wake-up signal:

Ps_offset: for determining the time position before the DRX ON to start monitoring the DCP. The value range is 0.125 to 15ms, and the granularity is 0.125ms.

minimum offset: the processing capability reported by the UE corresponds to the time when the UE demodulates the wake-up signal and prepares for normal data transmission and reception, and does not include the switching time when the UE performs the dormancy. The value size is related to the subcarrier spacing SCS.

For the wake-up signal, a new DCI format, i.e., DCI formats 2-6, is introduced in the protocol. The DCI format may support simultaneous configuration of multiple users, where information of each user includes a 1-bit wake-up signal indication and sleep indication information of a maximum of 5 secondary carrier sets. And the information of a plurality of users is placed in the DCI information after being connected in series. The sleep set of the secondary carriers herein controls the secondary carriers to enter into sleep or leave from sleep state in a manner indicated by DCI, and fig. 1D shows a schematic diagram of multi-carrier state transition in the related art, as shown in fig. 1D. Scell in active state can enter dormant state quickly when there is no data. In the dormant state, the UE can only perform CSI measurement of non-PDCCH scheduling without receiving PDCCH on the carrier, and quickly switch to a normal state for scheduling information monitoring when data transmission exists.

MAC CE (Control Element) is used for efficient communication between UE and eNB of the MAC layer. A respective plurality of MAC CEs are defined in TS38.321, including a MAC CE format supporting secondary carrier activation and deactivation.

In the 5G era, the base station supports a separation architecture, which comprises a centralized entity and a separation entity, wherein the centralized entity supports protocol layers such as RRC and SDAP/PDCP, and the separation entity comprises protocol layers such as physical layer/MAC/RLC. The centralized entity and the separation entity are connected by adopting an F1 interface, and in actual deployment, the separation entity and the centralized entity can be physically separated or can be arranged together, and the specific deployment mode is not perceived by an end user.

The terminal needs to consider the power consumption during multi-carrier aggregation, so as to enhance the scheduling flexibility, and based on this, the following problems still exist in the current specification in the process of configuring multi-carrier operation and use:

the wake-up signal can only be influenced by the capacity of the main carrier control channel at the main carrier: the Type 3CCS of PDCCH adopted by the wake-up signal can only be scheduled in the primary carrier at present, so that the problem of insufficient control channel capacity may exist due to the fact that spectrum needs to coexist with LTE and the like in some low-frequency scenes, and the difference exists between the CORSET configuration of the wake-up signal and the demand of COREST of the common data service, so that the wake-up signal needs to be considered for transmitting the wake-up signal in the secondary carrier.

The fast entering into sleep state is only applicable to the secondary carrier: the current protocol is influenced by the concept of the main carrier, and the dormant state needs to release the network side allocated resources, so that only the auxiliary carrier has the dormant state, the main carrier does not have the dormant state, and although the wake-up signal can enable the terminal not to monitor the PDCCH, other corresponding resources of the terminal side can be reserved, and the power saving effect of the terminal side is limited. Based on this, even if the terminal is supported to monitor DCI 2_6 on the secondary carrier, the primary carrier cannot be instructed to enter the sleep state.

The sleep is carried out only by supporting the SCell group, and the flexibility is not enough: fig. 1E illustrates a schematic diagram of an SCC sleep mode in a related art multi-carrier, as shown in fig. 1E, a sleep and de-sleep mode of a maximum of 5 SCell groups employed in the current DCI 2_6, and if a listening signal or receiving data is required in the next DRX cycle in one group, all carriers in the entire group are turned on to receive state, thus causing unnecessary carriers to be turned on or listened to.

The quick change of the resources cannot be supported, and the uplink and downlink resources are difficult to decouple: the switching of the primary carrier still needs to be switched by the RRC message to change the key, so there is a break delay inevitably in the middle. In addition, the uplink and downlink BWP and related resources still have binding and mapping relation, the resource mapping relation is changed by RRC reconfiguration, and the mapping relation is more complex when the number of carriers is more.

Based on the above requirement and reason analysis, the current 3GPP NR protocol cannot meet the requirement, and needs to be enhanced by a new manner to meet the requirement of network deployment and optimization.

Aiming at the problems that the change of control channel monitoring resources in a plurality of carriers in the related art is insensitive and the power consumption of a terminal is higher, the disclosure provides a data transmission method and device, and a storage medium. The base station separation entity sends the first carrier control channel monitoring resource set configuration to the terminal according to the indication of the base station concentration entity, and informs the terminal of the monitoring configuration of the next DRX activation period through physical layer indication information, or the first carrier resource needed to be used by the next DRX activation period through the MAC CE.

The technical solution of the embodiment of the present disclosure may be applied to various communication systems, for example: long-term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications systems (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) telecommunications systems, fifth generation (5th generation,5G) systems, new Radio (NR), and the like. The technical scheme provided by the disclosure can also be applied to future communication systems, such as a sixth generation mobile communication system. The communication system may also be a public land mobile network (public land mobile network, PLMN) network, a device-to-device (D2D) communication system, a machine-to-machine (machine to machine, M2M) communication system, an internet of things (internet of Things, ioT) communication system, or other communication systems.

A terminal (terminal equipment) in embodiments of the present disclosure may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a relay station, a remote terminal, a mobile device, a user terminal (UE), a User Equipment (UE), a terminal (terminal), a wireless communication device, a user agent, or a user equipment. The terminal may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved public land mobile network (public land mobile network, PLMN) or a terminal in a future internet of vehicles, etc., as the embodiments of the disclosure are not limited in this regard.

The network device in the embodiments of the present disclosure may be any communication device having a wireless transceiving function for communicating with a terminal. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a home evolved Node B, heNB, or home Node B, HNB, a Base Band Unit (BBU), an Access Point (AP), a radio relay Node, a radio backhaul Node, a transmission point (transmission point, TP), or a transmission reception point (transmission and reception point, TRP) in a wireless fidelity (wireless fidelity, WIFI) system, or the like, may also be a gNB in a 5G system, or a transmission point (TRP or TP) in a NR system, one or a group (including a plurality of antenna panels) of base stations in a 5G system, or may also be a network Node constituting a gNB or a transmission point, such as a Base Band Unit (BBU), or a Distributed Unit (DU), or the like.

To facilitate understanding of the embodiments of the present disclosure, a communication system suitable for use with the embodiments of the present disclosure will first be described in detail by taking the communication system shown in fig. 2 as an example. Fig. 2 shows a schematic diagram of a communication system of a data transmission method of an embodiment of the present disclosure. As shown in fig. 2, the communication system 200 includes four communication devices, for example, a network device 210, terminals 221 to 223. The terminals 221 to 223 may be all terminals with easy capabilities, or, among the terminals 221 to 223, terminals with easy capabilities and conventional ebb and URLLC terminals are included. At least one of the terminals 221 to 223 may perform data transmission with the network device 210 using the data transmission method provided by the present disclosure when performing access to the system.

It should be understood that more network nodes, such as terminals or network devices, may be included in the communication system shown in fig. 2, and that the network devices or terminals included in the communication system shown in fig. 2 may be various forms of network devices or terminals as described above. Embodiments of the present disclosure are not shown one by one in the drawings.

At least one embodiment of the present disclosure provides a data transmission method. The method is performed by a network device. Fig. 3 shows a flow diagram of a data transmission method in an embodiment of the disclosure. As shown in fig. 3, the method includes steps S300 to S302.

And S300, the network equipment sends a second RRC message to the terminal to instruct the terminal to configure the first carrier resource.

The second RRC message includes the first carrier resource configuration information.

And S301, the network equipment sends a fourth RRC message to the terminal to indicate the monitoring position of the terminal wake-up signal.

The fourth RRC message includes a frequency domain location and a time domain listening location of the wake-up signal.

S302, the network equipment sends wake-up indication scheduling information to the terminal to indicate whether the terminal wakes up or not.

In the embodiment of the data transmission method disclosed by the invention, the carrier resources which can be used by the terminal are mapped into the first carrier by introducing the virtual carrier, the network equipment sends the first carrier resource configuration information to the terminal to instruct the terminal to configure the first carrier resources, and further instructs the monitoring position of the wake-up signal of the terminal and sends the wake-up instruction scheduling information to instruct the terminal whether to wake up, so that the limitation that the wake-up signal of the terminal only appears on the main carrier under the condition of a plurality of carrier configurations is solved, and the control channel capacity and the allocation flexibility are improved.

At least one embodiment of the present disclosure provides a data transmission method. The method is performed by a network device comprising a centralized entity and a separate entity. Fig. 4 shows another flow diagram of a data transmission method in an embodiment of the present disclosure. On the basis of the embodiment shown in fig. 3, the method comprises steps S400 and S410, as shown in fig. 4.

And S400, the centralized entity determines to add a plurality of carriers according to the configuration or the measurement result of the terminal and generates a first RRC message.

For example, the centralized entity determines a plurality of carriers corresponding to the terminal according to the configuration or the measurement result of the terminal, and determines the mapping of the supported multi-carrier to the first carrier by receiving the terminal capability to report information and determining the terminal capability.

The first RRC message includes first carrier resource configuration information and secondary carrier configuration information. The first carrier resource configuration information of the first RRC message includes a first configuration identity, which is an integer value, starting from 0;

the secondary carrier configuration information of the first RRC message includes:

carrier number: integer values, ranging from 1, 0 being the current access of the terminal to the first carrier,

SSB frequency point of carrier wave: ARFCN-ValueNR defined in the TS38.331 protocol,

bandwidth of carrier: the type of enumeration is to be made,

SCS of carrier: enumerated types, including 15KHz,30KHz,60KHz,120KHz,

TDD frame structure configuration: when the carrier is TDD spectrum.

S401, the centralized entity sends first user configuration information comprising a first RRC message to the separation entity.

S402, the separation entity receives the first user configuration information and generates a second RRC message according to the first user configuration information.

The second RRC message includes the first carrier resource configuration information and the secondary carrier configuration information. The first carrier resource configuration information of the second RRC message includes:

the first carrier configuration identification: an integer value, starting from 0,

downlink configurations, including one or more downlink carrier configurations, wherein each downlink carrier configuration includes: carrier number, BWP identification,

a PDCCH configuration information list, each PDCCH configuration information comprising: the method comprises the steps of identifying a first PDCCH configuration mark, numbering a carrier wave and identifying a PDCCH resource set;

the secondary carrier configuration information of the second RRC message includes:

SSB (Synchronization Signal and PBCH block ) frequency point of carrier: ARFCN-ValueNR defined in TS38.331 protocol

Bandwidth of carrier: the type of enumeration is to be made,

SCS (sub-carrier space) of carrier (subcarrier spacing): enumerated types, including 15KHz,30KHz,60KHz,120KHz,

TDD frame structure configuration: alternatively, the carrier is only active when it is a TDD spectrum,

BWP configuration list: including BWP identification and BWP bandwidth, wherein the BWP identification is uniquely numbered in the carrier only,

PDCCH configuration information: including a combination of one or more PDCCH resource sets and PDCCH resource identities.

S403, the separation entity sends a second RRC message to the terminal to instruct the terminal to configure the first carrier resource.

S404, the separation entity receives the RRC reconfiguration message sent by the terminal to determine that the configuration of the first carrier of the terminal is completed.

S405, the centralized entity determines a third RRC message and sends the third RRC message to the separated entity.

The third RRC message includes wake-up signal configuration indication information. For example, the third RRC message includes: wake-up signal configuration indication information: boolean or enumeration, if yes, indicating that a wake-up signal is needed, and indicating information by a first carrier: boolean or enumeration, and if yes, indicates that a corresponding wake-up signal needs to be sent on the first carrier.

S406, the separation entity receives the third RRC message and generates a fourth RRC message according to the third RRC message, wherein the fourth RRC message comprises wake-up signal configuration indication information. For example, the fourth RRC message includes:

a third RRC message is sent to the base station in response to the third RRC message,

start bit position of symbol information for transmission by user in DCI: an integer value of the integer,

information size transmitted by user in DCI: an integer value of the integer,

list of carriers available for wake-up signal: including one or more carrier numbers in the PDCCH configuration information list,

PDCCH frequency domain number used for wake-up signal: the indication is performed by means of a maximum 45-bit bitmap, each bit indicating 6 PRBs, 6 PRBs cannot cross an actual physical boundary,

time domain offset of wake-up signal: for determining the time position before the DRX ON to start monitoring the DCP, the time position being related to the physical resource SCS currently configured when the wake-up signal,

the processing of the wake-up signal is minimally offset: the value is related to the currently configured physical resource SCS of the currently described wake-up signal and is determined accordingly.

S407, the separation entity sends a fourth RRC message to the terminal to indicate the monitoring position of the wake-up signal of the terminal, wherein the fourth RRC message comprises the frequency domain position and the time domain monitoring position of the wake-up signal.

The frequency domain position of the wake-up signal is determined according to the BWP of the first carrier and the PDCCH frequency domain number used by the wake-up signal, and the time domain monitoring position of the wake-up signal is determined according to the DRX activation period starting position T1 determined by taking the subframe boundary of the largest subcarrier in the virtual BWP as a reference and the time domain offset T2 of the wake-up signal.

S408, the separation entity sends wake-up indication scheduling information to the terminal to indicate whether the terminal wakes up.

S409, the separation entity determines the number of PRBs used in the next DRX period and the scheduled physical carrier list, and generates wake-up indication scheduling information of the corresponding terminal.

For example, the separation entity determines the number of PRBs used in the next DRX cycle and the scheduled physical carrier list according to whether there is data traffic scheduling in the uplink buffer and the downlink buffer of the terminal, and generates wake-up indication scheduling information of the corresponding terminal.

For example, the wake-up indication scheduling information includes:

wake-up indication information: a 1 bit, a 1 indicates the next DRX wakeup, a 0 indicates the next periodic sleep,

scheduling resource configuration information: when the wake-up indication information is 0, the configuration information is all 0, and the configuration information is indicated by a bitmap configured in RRC signaling, wherein a value of 1 in the bitmap indicates that the corresponding physical carrier does not need to enter a sleep state, and a value of 0 indicates that the corresponding physical carrier needs to enter the sleep state

S410, the separating entity places the wake-up indication scheduling information in the downlink control information and sends it to the terminal.

It should be noted that, the method of the embodiment of the present disclosure further includes: the separation entity adjusts the frequency domain position of the wake-up signal according to the load or coverage condition of the control channel of the first carrier wave, and sends the wake-up monitoring frequency domain adjusting signal to the terminal to indicate the frequency domain position of the wake-up signal in the next wake-up signal period of the terminal,

Wherein waking up the listening frequency domain adjustment signal comprises:

user identification: a C-RNTI is a radio network temporary identity,

position of wake-up signal: and indicating by using a bitmap configured in the RRC signaling, wherein a value of 1 in the bitmap indicates that the corresponding CORST resource is switched to a corresponding frequency domain position corresponding to the corresponding CORST resource, and a value of 0 indicates that the corresponding CORST resource is different from a wake-up monitoring signal, and one bit in the same bitmap is 1.

In an embodiment of the data transmission method disclosed by the disclosure, carrier resources which can be used by a terminal are mapped into a first carrier by introducing a virtual carrier, a centralized entity sends first user configuration information to a separation entity to instruct the separation entity to map the configurable carrier resources into the first carrier by the terminal, the separation entity sends a second RRC message to the terminal to instruct the terminal to configure the first carrier resources, the second RRC message comprises first carrier resource configuration information, the separation entity sends a fourth RRC message to the terminal to instruct a monitoring position of a terminal wake-up signal according to an instruction of the centralized entity, and the fourth RRC message comprises control channel monitoring resource set configuration of the first carrier and comprises a frequency domain position and a time domain monitoring position of the wake-up signal; the separation entity sends wake-up indication scheduling information to the terminal to indicate the monitoring configuration of the next DRX activation period of the terminal, or indicates the first carrier resource corresponding to the next DRX activation period through the MAC CE, so that the limitation that the wake-up signal of the terminal can only appear on the main carrier under the condition of multiple carrier configuration is solved, the control channel capacity and the flexibility of allocation are improved, and the opening and closing of the resources are determined according to carrier granularity for the dormancy or activation operation of multiple carriers, and the energy consumption of the terminal is reduced.

At least one embodiment of the present disclosure provides a data transmission method. The method is performed by a network device. Fig. 5 shows a flow diagram of a data transmission method in an embodiment of the present disclosure. As shown in fig. 5, the method includes steps S500 and S503.

S500, the terminal receives a second RRC message sent by the network device, wherein the second RRC message comprises the first carrier resource configuration information.

S501, the terminal configures the first carrier resource according to the first carrier resource configuration information.

S502, the terminal receives a fourth RRC message sent by the network device, and determines the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message.

S503, the terminal receives the wake-up indication scheduling information sent by the network device, and determines whether to wake up according to the wake-up indication scheduling information.

In the embodiment of the data transmission method disclosed by the invention, the carrier resources which can be used by the terminal are mapped into the first carrier by introducing the virtual carrier, the terminal receives the second RRC message and configures the first carrier resources according to the first carrier resource configuration information, receives the fourth RRC message and determines the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message, further receives the wake-up indication scheduling information and determines whether to wake up according to the wake-up indication scheduling information, thereby solving the limitation that the wake-up signal of the terminal only can appear on the main carrier under the condition of a plurality of carrier configurations and improving the control channel capacity and the allocation flexibility.

At least one embodiment of the present disclosure provides a data transmission method. The method is performed by a terminal, and the network device comprises a centralized entity and a separated entity. Fig. 6 shows another flow diagram of a data transmission method in an embodiment of the disclosure. As shown in fig. 6, the method includes steps S600 and S603.

S600, the terminal receives a second RRC message sent by the separation entity. The second RRC message includes the first carrier resource configuration information.

S601, the terminal configures first carrier resources according to the first carrier resource configuration information.

S602, the terminal sends RRC reconfiguration information to the separation entity to indicate that the first carrier configuration of the separation entity terminal is completed.

S603, the terminal receives a fourth RRC message sent by the separation entity, and determines the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message.

The terminal determines BWP of the first carrier according to the first carrier configuration information, determines the starting positions of the mapped physical carrier and physical PRB according to the PDCCH frequency domain number of the wake-up signal, determines the starting position T1 of the DRX activation period according to the subframe boundary of the maximum subcarrier in the virtual BWP as a reference, and determines the starting point of the monitoring time as T1-T2 according to the time domain offset T2 of the wake-up signal.

S605, the terminal receives downlink control information sent by a separation entity, wherein the downlink control information comprises wake-up indication scheduling information.

S606, determining whether the next DRX activation period wakes up according to the wake-up indication scheduling information.

When the wake-up indication information is 0, the terminal closes the wireless and radio frequency resources in the downlink BWP and the corresponding uplink BWP, and when the wake-up indication information is 1, the terminal configures the physical carrier of the downlink wireless and radio frequency resources in the next period according to the first carrier configuration information.

S607, the terminal receives the wake-up monitoring frequency domain adjusting signal sent by the separating entity, and determines the frequency domain position of the wake-up signal in the next wake-up signal period according to the wake-up monitoring frequency domain adjusting signal.

In the embodiment of the data transmission method disclosed by the invention, the carrier resources which can be used by the terminal are mapped into the first carrier by introducing the virtual carrier, the terminal receives the second RRC message and configures the first carrier resources according to the first carrier resource configuration information, receives the fourth RRC message and determines the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message, further receives the wake-up indication scheduling information and determines whether to wake up according to the wake-up indication scheduling information, thereby solving the limitation that the wake-up signal of the terminal only can appear on the main carrier under the condition of a plurality of carrier configurations, improving the flexibility of controlling the channel capacity and allocation, and determining the opening and closing of the resources according to the carrier granularity for the operation of dormancy or activation of the multi-carrier, and reducing the energy consumption of the terminal.

At least one embodiment of the present disclosure provides a data transmission method. The method is interactively performed by the network device and the terminal. Fig. 7A shows another flow diagram of a data transmission method in an embodiment of the present disclosure. As shown in fig. 7A, the method includes steps S700 and S713.

And step 1, the base station centralized entity determines that a plurality of carriers need to be added to the terminal according to the configuration or the measurement result of the terminal, and determines that the terminal supports the mapping from the multi-carrier to the virtual carrier through the terminal capability, and then generates a first RRC message for user configuration. Wherein the first RRC message includes, but is not limited to, the following:

1) Secondary carrier configuration list information, wherein the configuration information of each carrier includes:

carrier number: integer value, range from 1, 0 considers the current access carrier of the terminal;

SSB frequency point of carrier wave: ARFCN-ValueNR defined in TS38.331 protocol;

bandwidth of carrier: enumerating types;

SCS of carrier: enumerating types, including 15KHz,30KHz,60KHz,120KHz, etc.;

TDD frame structure configuration: alternatively, it is only valid when the carrier is TDD spectrum.

2) A first carrier configuration add list, each first carrier configuration including, but not limited to, the following:

the first configuration identifier: integer values, starting from 0.

And 2, the base station centralized entity generates first user configuration information and sends the first user configuration information to the base station separation entity through a user context modification message. The first user configuration information includes, but is not limited to, the following:

enumeration or boolean type, yes indicating that mapping to the first carrier is required;

secondary carrier configuration information;

a first RRC message.

And step 3, after receiving the user context modification message, the base station separation entity stores the first user configuration information and the auxiliary carrier configuration information, fills the relevant configuration of the first carrier in the first RRC message according to the physical layer configuration of the base station separation entity, forms a second RRC message and sends the second RRC message to the terminal. Wherein the second RRC message includes, but is not limited to, the following:

carrier number: integer values, ranging from 1, 0 considers the terminal to currently access the carrier.

SSB frequency point of carrier wave: ARFCN-ValueNR defined in TS38.331 protocol.

Bandwidth of carrier: enumerating the types.

SCS of carrier: enumerated types, including 15khz,30khz,60khz,120khz, etc.

BWP configuration list: including BWP identification and BWP bandwidth, wherein the BWP identification is uniquely numbered in the carrier only.

the first carrier configuration identification: integer values, starting from 0.

Downlink configurations, including one or more downlink carrier configurations, wherein each downlink carrier configuration includes:

carrier numbering;

BWP identification;

a PDCCH configuration information list, each PDCCH configuration information comprising:

a first PDCCH configuration target identification;

numbering of carriers;

PDCCH resource set identification.

3) The first carrier configuration identifier currently in use: the first configuration identifier.

4) DRX configuration parameters.

And 4, after the terminal receives the second RRC message, configuring the first carrier resource, determining that the terminal needs to start the uplink and downlink physical carriers and corresponding terminal antennas and radio frequency configuration, and for the downlink carriers which are not in the BWP range, the terminal does not configure any wireless, antenna and radio frequency resource on the carrier. Wherein the first carrier resource:

1) Firstly, saving auxiliary carrier configuration list information;

2) If the first carrier configuration addition list information is carried, configuring for each first carrier:

and determining the range of virtual downlink in each configuration, wherein the frequency domain resources of BWP of the carrier are mapped into one virtual downlink BWP according to the carrier number in the same downlink carrier configuration in a sequential mode, and the total bandwidth of the virtual BWP is equal to the sum of the bandwidths of all the carrier BWPs in the downlink configuration. Fig. 7B illustrates a total bandwidth schematic diagram of the virtual BWP in the embodiment of the disclosure, and as illustrated in fig. 7B, the total bandwidth of the downlink virtual BWP is equal to the sum of the bandwidths of all the carriers BWP in the downlink configuration, and the total bandwidth of the downlink virtual BWP is equal to the sum of the bandwidths of all the carriers BWP in the uplink configuration.

Determining the first carrier configuration currently used by the terminal according to the first carrier configuration identification information currently used

And determining PDCCH resources which need to be monitored currently according to the first carrier configuration.

And step 5, after the terminal configures the first carrier, the terminal sends an RRC reconfiguration message to confirm that the configuration is successful.

And 6, after receiving the RRC reconfiguration message sent by the terminal, the base station separation entity feeds back the completion of the first carrier configuration to the base station centralized entity.

And 7, the base station centralized entity determines that the terminal needs energy-saving operation, generates a third RRC message sent to the terminal, and places the third RRC message in a DL RRC MESSAGE TRANSFER message and sends the third RRC message to the base station separation entity. Wherein the third RRC message includes, but is not limited to, the following:

1) Wake-up signal configuration indication: boolean or enumeration, and if yes, indicates that a wake-up signal is required.

2) First carrier indication information: boolean or enumeration, and if yes, indicates that a corresponding wake-up signal needs to be sent on the first carrier.

Step 8, the base station separation entity determines a fourth RRC message according to the third RRC message and the scheduling situation of the terminal, and sends the fourth RRC message to the terminal, where the fourth RRC message includes, but is not limited to, the following:

1) And a third RRC message.

2) The first carrier configuration identification: integer values, starting from 0.

3) Start bit position of symbol information for transmission by user in DCI: an integer value.

4) Information size transmitted by user in DCI: an integer value.

5) List of carriers available for wake-up signal: including one or more carrier numbers in the PDCCH configuration information list.

6) PDCCH frequency domain number used for wake-up signal: the indication is performed by means of a maximum 45-bit bitmap, each bit indicating 6 PRBs, which cannot cross the actual physical boundary.

7) Time domain offset of wake-up signal: for determining the time position before the DRX ON to start monitoring the DCP, the timing position being related to the physical resource SCS currently configured when the wake-up signal.

8) Processing of wake-up signal minimum offset: the value is determined in relation to the physical resource SCS currently configured when the wake-up signal is currently configured.

And 9, after receiving the fourth RRC message, the terminal determines the frequency domain position and the time domain monitoring position of the wake-up signal. The frequency domain position determining method is to determine the initial position of the mapped physical carrier and physical PRB according to the BWP of the first carrier and the PDCCH frequency domain number used by the wake-up signal, and monitor the PDCCH signal at the PRB set position. The method for determining the time domain position is to determine the starting position T1 of the DRX activation period according to the sub-frame boundary of the maximum sub-carrier in the virtual BWP as a base, determine the starting point of the monitoring time as T1-T2 according to the time domain offset T2 of the wake-up signal in the signaling, and do not make any monitoring information before the DRX activation period is started.

And step 10, after the terminal completes the configuration of the fourth RRC message, the terminal confirms that the configuration is completed to the network through the RRC reconfiguration completion message.

Step 11, the base station separation entity determines the number of PRBs used in the next DRX period and the physical carrier list of scheduling according to whether data service scheduling exists in the uplink and downlink caches of the terminal, generates wake-up indication scheduling information corresponding to the terminal, places the wake-up indication scheduling information at the starting position of DCI information of the terminal defined in RRC message, places the wake-up indication scheduling information in the DCI information together with wake-up indication information of other terminals which need to be indicated to wake-up at T1-T2, and sends the DCI information to a terminal group comprising the terminal at corresponding time. Wherein the wake-up indication scheduling information comprises the following steps:

1) Wake-up indication information: a 1 bit, when 1, indicates the next DRX wakeup, and a 0 indicates the next periodic sleep.

2) Scheduling resource configuration information: only when the wake-up indication information is 1, the configuration information is all 0 when the wake-up indication information is 0, and the configuration information is indicated by a bitmap configured in the RRC signaling, wherein the fact that the bitmap is 1 indicates that the corresponding physical carrier does not need to enter a dormant state, and the fact that the bitmap is 0 indicates that the corresponding physical carrier needs to enter the dormant state.

And 12, the terminal monitors the CORESET resource position where the first wake-up signal is located at the first time position, acquires DCI indication information, and when the wake-up indication information is 0 in the next DRX activation period, the terminal side closes the wireless and radio frequency resources in the downlink BWP and the corresponding uplink BWP, when the wake-up indication information is 1, determines the physical carrier of the wireless and radio frequency resources required to be configured in the downlink in the next period according to the resource configuration information, and for the physical carrier entering the dormant state, the wireless and radio frequency related resources configured by the downlink carrier are not applicable in the next period.

Step 13, the base station separation entity requests to adjust the frequency domain position of the wake-up monitoring signal according to the control channel load or coverage condition, and sends the wake-up monitoring frequency domain adjustment signal to the terminal through the MAC CE, wherein the MAC CE comprises one or more adjustment results of the terminal, and the adjustment result of each terminal comprises the following steps:

1) User identification: C-RNTI.

2) Position of wake-up signal: and indicating by using a bitmap configured in the RRC signaling, wherein a value of 1 in the bitmap indicates that the corresponding CORST resource is switched to a corresponding frequency domain position, and a value of 0 indicates that the corresponding CORST resource is different from a wake-up signal, and one bit in the same bitmap can be 1.

And 14, after receiving the MAC CE information sent by the base station separation entity, the terminal determines the frequency domain position adopted by the wake-up signal when the next wake-up signal period arrives according to the configuration information in the MAC CE information.

The data transmission method of the present disclosure is described in detail below with reference to embodiments.

The present embodiment mainly describes a process of notifying a user that two downlink carriers cc#1 and cc#2 are mapped to a virtual carrier cc#3 in a CU/DU combined scenario, where the BWP of each of cc#1 and cc#2 is 20MHz, and the mapping is 40MHz bandwidth. In this embodiment, the interaction information between CU/DUs is internal interaction, and the entire base station is called gNB in a general manner

1) The gNB forms a second RRC message and sends the second RRC message to the terminal. Wherein the second RRC message includes the following:

(1) Secondary carrier configuration list information, wherein the configuration information of each carrier includes:

carrier numbering;

SSB frequency points of the carrier wave;

bandwidth of carrier: 20MHz;

SCS of carrier: 15KHz;

BWP configuration list: {0,20MHz } and {1,20MHz };

PDCCH configuration information.

(2) A first carrier configuration add list, each first carrier configuration including, but not limited to, the following:

the first carrier configuration identification: 0;

downstream configurations {0,0} and {1,1}.

PDCCH configuration information list

(3) The first carrier configuration identifier currently in use: 0.

(4) DRX configuration parameters.

2) After receiving the second RRC message, the terminal configures the first carrier resource, and determines that the terminal needs to start up and down physical carriers and corresponding terminal antennas and radio frequency configuration.

3) After the terminal configures the first carrier, the terminal sends an RRC reconfiguration message to confirm that the configuration is successful.

4) The gNB determines that the terminal requires power save operation, generates a fourth RRC message that is sent to the terminal, wherein the fourth RRC message includes, but is not limited to, the following:

(1) Wake-up signal configuration indication: 1, a step of;

(2) First carrier indication information: 1, a step of;

(3) The first carrier configuration identification: 0;

(4) Start bit position of symbol information for transmission by user in DCI: 0;

(5) Information size transmitted by user in DCI: an integer value;

(6) A list of carriers available for wake-up signals;

(7) PDCCH frequency domain number used by wake-up signal;

(8) Time domain offset of wake-up signal;

(9) The wake-up signal is processed by minimum offset.

5) After receiving the fourth RRC message, the terminal determines the frequency domain position and the time domain monitoring position of the wake-up signal.

6) And the gNB determines the number of PRBs used in the next DRX period and a scheduled physical carrier list according to whether data service scheduling exists in an uplink and downlink buffer memory of the terminal, generates wake-up indication scheduling information corresponding to the terminal, places the wake-up indication scheduling information at a starting position of DCI information of the terminal defined in an RRC message, places the wake-up indication scheduling information in the DCI information together with wake-up indication information of other terminals which need to indicate wake-up together at T1-T2, and sends the DCI information to a terminal group comprising the terminal at corresponding moments. Wherein the first wake-up indication information includes the following:

wake-up indication information: 0;

and (3) resource configuration: 01.

7) The terminal monitors the CORESET resource position where the first wake-up signal is located at the first time position, acquires DCI indication information, and closes wireless and radio frequency resources in the downlink BWP and corresponding uplink BWP when the wake-up indication information is 0 in the next DRX activation period.

8) The gNB requests to adjust the frequency domain position of the monitoring signal according to the control channel load or coverage condition, the frequency domain position is sent to the terminal through the MAC CE, the MAC CE comprises the adjustment results of 4 terminals, and the current terminal adjustment result comprises the following steps:

user identification: C-RNTI;

the location of the wake-up signal.

9) After receiving the MAC CE information sent by the gNB, the terminal determines the frequency domain position adopted by the wake-up signal when the next wake-up signal period arrives according to the configuration information in the MAC CE information.

The data transmission device disclosed by the embodiment of the invention has small influence on the terminal and good backward compatibility and deployment feasibility. The scheme is enhanced on the existing protocol, a new protocol process is not introduced, and the implementation difficulty is low.

It should be noted that, the data transmission method performed by the network device shown in fig. 3 and fig. 4 is a data transmission method performed by a network device on a side opposite to the data transmission method performed by the terminal shown in fig. 5-6 and fig. 7, and the data transmission method performed by the terminal shown in fig. 5 and fig. 6 is a data transmission method performed by a terminal on a side opposite to the data transmission method performed by the network device shown in fig. 3-4 and fig. 7, and relevant steps and features of the data transmission method performed by the terminal on the side opposite to the data transmission method performed by the network device shown in fig. 3-4 and fig. 7 may be referred to each other, and their technical principles and technical effects are similar and are not repeated herein.

At least one embodiment of the present disclosure provides a data transmission device. Fig. 8 is a schematic structural diagram of a data transmission device according to an embodiment of the disclosure. As shown in fig. 8, the apparatus includes a processing unit and a transmitting and receiving unit. The receiving and transmitting unit is used for sending a second RRC message to the terminal to instruct the terminal to configure the first carrier resource, wherein the second RRC message comprises the first carrier resource configuration information; the receiving and transmitting unit is further configured to send a fourth RRC message to the terminal to indicate a listening position of a wake-up signal of the terminal, where the fourth RRC message includes a frequency domain position and a time domain listening position of the wake-up signal; the transceiver unit is further configured to send wake-up indication scheduling information to the terminal by using the network device to indicate whether the terminal wakes up.

Apparatus 800 corresponds to a network device in a method embodiment, and apparatus 800 may be a network device in a method embodiment, or a chip or a functional module inside a network device in a method embodiment. The respective units of the apparatus 800 are adapted to perform the respective steps performed by the network device in the method embodiments shown in fig. 3 to 4 and fig. 7.

The apparatus 800 includes:

a user configuration receiving unit 81, configured to receive first user configuration information sent by the centralized entity, where the first user configuration information includes a first RRC message;

A carrier configuration sending unit 82, configured to map carrier resources configurable by a terminal on a first carrier based on the first user configuration information, and generate a second RRC message according to the first RRC message; transmitting the second RRC message to the terminal to instruct the terminal to configure first carrier resources, wherein the second RRC message comprises first carrier resource configuration information;

a listening position sending unit 83, configured to determine a fourth RRC message according to the third RRC message sent by the centralized entity, and send the fourth RRC message to the terminal to indicate a listening position of the terminal wake-up signal, where the fourth RRC message includes a first carrier control channel listening resource set configuration, and the first carrier control channel listening resource set configuration includes a frequency domain position and a time domain listening position of the wake-up signal;

and a wake-up schedule sending unit 84, configured to send wake-up indication scheduling information to the terminal to indicate a listening configuration of the next DRX active cycle of the terminal, or indicate, through MAC CE, a first carrier resource corresponding to the next DRX active cycle.

The above units may exist independently or may be integrated in whole or in part.

At least one embodiment of the present disclosure provides a data transmission device. Fig. 9 is a schematic structural diagram of a data transmission device according to an embodiment of the disclosure. As shown in fig. 9, the apparatus includes a transceiving unit and a processing unit. The receiving and transmitting unit is used for receiving a second RRC message sent by the network equipment, wherein the second RRC message comprises first carrier resource configuration information; the processing unit is used for configuring the first carrier resource according to the first carrier resource configuration information; the receiving and transmitting unit is used for receiving a fourth RRC message sent by the network equipment and determining the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message; the receiving and transmitting unit is used for receiving the wake-up indication scheduling information sent by the network equipment; the processing unit is also used for determining whether to wake up according to the wake-up indication scheduling information.

The apparatus 900 corresponds to a terminal in the method embodiment, and the apparatus 900 may be a terminal in the method embodiment, or a chip or a functional module inside the terminal in the method embodiment. The respective units of the apparatus 900 are adapted to perform the respective steps performed by the terminal in the method embodiments shown in fig. 5 to 7.

The apparatus 900 includes:

a terminal capability reporting unit 91, configured to send capability reporting information to a network device, where the capability reporting information includes a configurable carrier resource of the terminal;

A carrier configuration receiving unit 92, configured to receive a second RRC message sent by the network device, where the second RRC message includes first carrier resource configuration information;

a carrier resource allocation unit 93, configured to allocate a first carrier resource according to the first carrier resource allocation information;

a listening position receiving unit 94, configured to receive a fourth RRC message sent by the network device, and determine a frequency domain position and a time domain listening position of the wake-up signal according to the fourth RRC message;

a wake-up indication receiving unit 95, configured to receive wake-up indication scheduling information sent by a network device, and determine a next DRX active cycle monitoring configuration according to the wake-up indication scheduling information, or determine a first carrier resource corresponding to the next DRX active cycle through MAC CE

At least one embodiment of the present disclosure provides a communication device. The communication device includes: at least one processor; and at least one memory for storing executable instructions of the processor; the processor is configured to perform the data transmission method of any of the embodiments shown in fig. 3-4, or fig. 5-7 described above via execution of executable instructions. The communication means may be, for example, a terminal or a network device.

At least one embodiment of the present disclosure provides a terminal. The terminal includes a processor and a memory. The memory is used to store executable instructions for the processor. The processor is configured to perform the data transmission method of any of the embodiments shown in fig. 5 to 7 described above via execution of executable instructions.

The terminal comprises a processor, a memory, a radio frequency circuit, an antenna and an input-output device. The processor is used for controlling the antenna and the input and output device to receive and transmit signals, the memory is used for storing a computer program, the processor is used for calling and running the computer program from the memory, and the radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keypads, etc., are mainly used to receive data input by a user and output data to the user.

When data need to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.

At least one embodiment of the present disclosure provides a network device. The network device includes a processor and a memory. The memory is used to store executable instructions of the processor. The processor is configured to perform the data transmission method of any of the embodiments described above with reference to fig. 3-4 and fig. 7 by executing executable instructions.

It is to be appreciated that the processor described above can be a central processing unit (central processing unit, CPU), but also other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory described above can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, RAM) are available, such as Static RAM (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.) means. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

The embodiment of the disclosure also provides a communication system, which comprises: the communication device, such as the terminal and the network device, and the communication system further includes other communication devices. For example, the communication system includes an NR-light terminal, a non-NR-light terminal, and an access network device.

The disclosed embodiments also provide a computer readable medium storing a computer program code comprising instructions for performing the data transmission method of the disclosed embodiments in the above method. The readable medium may be read-only memory (ROM) or random access memory (random access memory, RAM), to which embodiments of the present disclosure are not limited.

The present disclosure also provides a computer-readable storage medium having stored thereon a computer program, on which a program product is stored that enables the method described herein above to be implemented. In some possible embodiments, the various aspects of the invention may also be implemented in the form of a program product comprising program code for causing a terminal to carry out the steps according to the various exemplary embodiments of the invention as described in the "exemplary methods" section of this specification, when the program product is run on the terminal.

A program product for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and comprise program code, and may be run on a terminal, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The embodiment of the disclosure also provides a system chip, which comprises: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, pins or circuitry, etc. The processing unit may execute computer instructions to cause a chip within the communication device to perform any of the methods of transmitting initial access configuration information provided by the embodiments of the present disclosure described above.

For example, the communication apparatus including a terminal and a network device of any of the embodiments provided in the above-described embodiments of the present disclosure may include the system chip.

For example, the computer instructions are stored in a storage unit.

For example, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit in the terminal located outside the chip, such as a ROM or other type of static storage device, a RAM, etc., that may store static information and instructions. The processor mentioned in any of the above may be a CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of the program of the above-mentioned method for transmitting initial access configuration information. The processing unit and the storage unit may be decoupled and respectively disposed on different physical devices, and the respective functions of the processing unit and the storage unit are implemented by wired or wireless connection, so as to support the system chip to implement the various functions in the foregoing embodiments. Alternatively, the processing unit and the memory may be coupled to the same device.

It will be appreciated that the memory in embodiments of the disclosure may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, RAM) are available, such as Static RAM (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

The terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely one kind of association relation describing the association object, meaning that three kinds of relations may exist, e.g., a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The terms "upstream" and "downstream" as used in this disclosure are used to describe the direction of data/information transmission in a specific scenario, for example, the "upstream" direction generally refers to the direction in which data/information is transmitted from a terminal to a network side, or the direction in which a distributed unit is transmitted to a centralized unit, and the "downstream" direction generally refers to the direction in which data/information is transmitted from a network side to a terminal, or the direction in which a centralized unit is transmitted to a distributed unit.

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/processes/concepts may be named in the present disclosure, and it should be understood that these specific names do not constitute limitations on related objects, and that the named names may be changed according to the scenario, context, or usage habit, etc., and understanding of technical meaning of technical terms in the present disclosure should be mainly determined from functions and technical effects that are embodied/performed in the technical solution.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions in an actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in essence or a part contributing to the prior art or a part of the technical solution, or in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present disclosure. And the aforementioned storage medium includes: u disk, mobile hard disk, read-only memory (ROM), random access.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A method of listening control channel indication performed by a network device comprising a centralized entity and a separate entity, comprising:

the separation entity determines a fourth RRC message according to a third RRC message sent by the concentration entity, and sends the fourth RRC message to the terminal to indicate a monitoring position of the terminal wake-up signal, wherein the fourth RRC message comprises a first carrier control channel monitoring resource set configuration, and the first carrier control channel monitoring resource set configuration comprises a frequency domain position and a time domain monitoring position of the wake-up signal;

2. The method of claim 1, wherein the first user configuration information comprises first carrier configuration information, secondary carrier configuration information, and the first RRC message.

3. The method of claim 1, wherein the first RRC message comprises:

4. The method of claim 1, wherein the second RRC message includes:

5. The method of claim 4, wherein the first carrier resource configuration information of the second RRC message further comprises a time division duplex, TDD, frame structure configuration.

6. The method of claim 1, wherein the third RRC message includes:

wake-up signal configuration indication information; and

the first carrier indicates information.

7. The method of claim 1, wherein the fourth RRC message includes:

8. The method of claim 1, wherein the first wake-up indication information comprises:

9. The method according to any one of claims 1 to 8, further comprising:

10. The method according to any one of claims 1 to 8, wherein the receiving, by the separating entity, the first user configuration information sent by the centralized entity comprises:

11. The method according to any of claims 1 to 8, wherein the separating entity generating a second RRC message from the first RRC message comprises:

12. The method according to any one of claims 1 to 8, further comprising:

13. The method of claim 11, wherein the configuring the first carrier resource comprises:

storing auxiliary carrier configuration list information;

determining a virtual downlink range in each configuration, wherein frequency domain resources of BWPs of the carrier are mapped into a virtual downlink BWP according to carrier numbers in the same downlink configuration in a sequential arrangement mode, and the total bandwidth of the virtual BWP is equal to the sum of bandwidths of all the carrier BWPs in the downlink configuration;

14. The method as recited in claim 11, further comprising:

after the terminal configures the first carrier, the terminal sends RRC reconfiguration information to the separation entity to confirm that the configuration is successful;

15. The method according to any one of claims 1 to 8, further comprising:

16. The method according to any one of claims 1 to 8, further comprising:

17. The method of claim 16, wherein the determining the frequency domain location and the time domain listening location of the wake-up listening signal comprises:

determining the frequency domain position of the wake-up signal according to BWP of the first carrier and PDCCH frequency domain number used by the wake-up signal;

18. The method according to any one of claims 1 to 8, further comprising:

the separation entity determines the number of PRBs used in the next DRX period and a physical carrier list for scheduling according to whether data service scheduling exists in an uplink cache and a downlink cache of the terminal, generates the wake-up indication scheduling information corresponding to the terminal,

The separation entity places the wake-up indication scheduling information in downlink control information and sends the information to the terminal.

19. The method according to any one of claims 1 to 8, further comprising:

20. The method according to any one of claims 1 to 8, further comprising:

and the terminal monitors the control resource set CORESET resource position where the first wake-up signal is located at the first moment, acquires DCI indication information, and when the wake-up indication information is 0 in the next DRX activation period, the terminal side closes the wireless and radio frequency resources in the downlink BWP and the corresponding uplink BWP, when the wake-up indication information is 1, determines the physical carrier of the wireless and radio frequency resources which are required to be configured in the downlink in the next period according to the resource configuration information, and is not applicable to the wireless and radio frequency related resources configured by the downlink carrier of the physical carrier entering the dormant state in the next period.

21. The method according to any one of claims 1 to 8, further comprising:

22. A method of listening control channel indication, performed by a terminal, comprising:

23. The method of claim 22, wherein the terminal receiving a fourth RRC message sent by the network device, and determining the frequency domain location and the time domain listening location of the wake-up signal according to the fourth RRC message comprises:

the terminal receives a fourth RRC message sent by the separation entity;

24. The method of claim 22, wherein the terminal receiving the wake-up indication scheduling information sent by the network device and determining whether to wake-up according to the wake-up indication scheduling information comprises:

the terminal receives downlink control information sent by the separation entity, wherein the downlink control information comprises the wake-up indication scheduling information;

25. The method of claim 22, wherein the method further comprises:

26. The method of claim 22, wherein the method further comprises:

and the terminal sends an RRC reconfiguration message to the network equipment to confirm successful configuration.

27. A listening control channel indicating device, comprising:

A monitoring position sending unit, configured to determine a fourth RRC message according to a third RRC message sent by the centralized entity, and send the fourth RRC message to the terminal to indicate a monitoring position of the terminal wake-up signal, where the fourth RRC message includes a first carrier control channel monitoring resource set configuration, and the first carrier control channel monitoring resource set configuration includes a frequency domain position and a time domain monitoring position of the wake-up signal;

28. A listening control channel indicating device, comprising:

The monitoring position receiving unit is used for receiving a fourth RRC message sent by the network equipment and determining the frequency domain position and the time domain monitoring position of the wake-up signal according to the fourth RRC message;

29. A communication device, comprising:

at least one processor; and

at least one memory for storing executable instructions of the processor;

wherein the processor is configured to perform the method of indicating a listening control channel as claimed in any one of claims 1 to 21 or 22 to 26 via execution of the executable instructions.

30. A computer readable storage medium having stored thereon a computer program or instructions which when executed by a processor implements the method of indication of listening to a control channel as claimed in any one of claims 1 to 21 or 22 to 26.