CN117835298A - Data transmission method and device, storage medium, terminal and network equipment - Google Patents

Abstract

A data transmission method and device, a storage medium, a terminal and a network device, wherein the method comprises the following steps: measuring a period deviation value of a configuration authorization CG, wherein the period deviation value is used for reflecting the transmission delay of a service transmitted through the CG; and reporting the periodic deviation information to network equipment, wherein the periodic deviation information comprises the periodic deviation value. The scheme provided by the invention can reduce the time delay of transmitting the data through configuration authorization.

Description

Data transmission method and device, storage medium, terminal and network equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method and apparatus, a storage medium, a terminal, and a network device.

Background

The existing communication system can support uplink transmission of Configuration Grant (CG), and the terminal can transmit uplink data using transmission resources of the configuration Grant. For example, in a New Radio (NR) system, for periodic services, a network device may configure semi-static transmission resources for a terminal, so that efficient data transmission can be implemented with little consumption of physical layer control signaling, where allocation of the semi-static transmission resources is configuration authorization.

At present, the configurable CG period is limited, usually is an integer, for example, 8ms, 10ms, 16ms, 20ms, etc., and the situation that the service period is not matched with the CG period easily occurs, so that the problems of larger transmission delay, etc. occur.

Disclosure of Invention

The technical problem to be solved by the application is as follows: how to reduce the delay of configuration grant uplink transmission.

In order to solve the above technical problem, in a first aspect, an embodiment of the present application provides a data transmission method, where the method is applied to a terminal, and includes: measuring a period deviation value of a configuration authorization CG, wherein the period deviation value is used for reflecting the transmission delay of a service transmitted through the CG; and reporting the periodic deviation information to network equipment, wherein the periodic deviation information comprises the periodic deviation value.

Optionally, reporting the period deviation information to the network device includes: and if the period deviation value is larger than or equal to a preset threshold value, reporting the period deviation information to the network equipment.

Optionally, the preset threshold value is configured according to the CG, and preset threshold values corresponding to different CGs are the same or different.

Optionally, measuring the period deviation value of the CG includes: and measuring a period deviation value of the CG in response to measurement indication information of the network equipment.

Optionally, before measuring the period deviation value of the CG, the method further includes: and receiving measurement indication information from the network equipment, wherein the measurement indication information comprises a first identifier for indicating the CG to be measured or a second identifier for indicating the service transmitted by the CG to be measured.

Optionally, the second identifier is an identifier of a logical channel or an identifier of a data radio bearer DRB.

Optionally, measuring the period deviation value of the CG includes: determining the transmission delay, wherein the transmission delay is a time interval between the time when the data of the service arrives at the layer 2 and the starting time of the transmission through the CG, or a time interval between the time when the data of the service arrives at the layer 2 and the ending time of the transmission through the CG; and taking the transmission delay as the period deviation value, or taking the result of subtracting the processing delay of the service in the layer 2 from the transmission delay as the period deviation value.

Optionally, the processing delay of the service in layer 2 is an average processing duration or a minimum processing duration of the data of the service in layer 2.

Optionally, the transmission delay is a transmission delay of the service transmitted by the CG last time; or the transmission delay is the transmission delay of the next transmission of the service through the CG.

Optionally, reporting the period deviation information to the network device includes: and reporting the period deviation information through a control element of a Medium Access Control (MAC).

Optionally, the period deviation information further includes: type indication information and/or identification of the CG; the type indication information is used for indicating whether the period deviation value is the period deviation value of the data to be transmitted.

Optionally, the method further comprises: if the CG overlaps with other configuration grants in the time domain and the priority of the traffic transmitted by the other configuration grants is higher, ignoring the period deviation information; and/or if the CG overlaps with the dynamically scheduled uplink grant in the time domain and the priority of the traffic transmitted by the dynamically scheduled uplink grant is higher, ignoring the period deviation information; and/or if the configuration grant overlaps with the measurement gap in the time domain, ignoring the period deviation information.

Optionally, the method further comprises: scheduling information is received from the network device, the scheduling information being used to adjust a starting time of the CG.

In a second aspect, an embodiment of the present application provides a data transmission method, where the method is applied to a network device, and includes: receiving period deviation information reported by a terminal, wherein the period deviation information comprises a period deviation value of a configuration authorization CG, and the period deviation value is used for reflecting the transmission delay of a service transmitted through the CG; according to the periodic deviation value, adjusting the starting moment of the CG; and indicating the starting moment of the adjusted CG to the terminal.

Optionally, the period deviation information is reported by the terminal when the period deviation value is greater than or equal to a preset threshold value.

Optionally, the preset threshold value is configured according to the CG, and preset threshold values corresponding to different CGs are the same or different.

Optionally, before receiving the period deviation information reported by the terminal, the method further includes: and sending measurement indication information to the terminal so as to trigger the terminal to measure the periodical deviation value of the CG.

Optionally, the measurement indication information includes a first identifier for indicating the CG to be measured, or a second identifier for indicating the traffic transmitted by the CG to be measured.

Optionally, the second identifier is an identifier of a logical channel or an identifier of a data radio bearer DRB.

Optionally, the periodic deviation value is the transmission delay, or the periodic deviation value is a result of subtracting the processing delay of the service in layer 2 from the transmission delay; the transmission delay refers to a time interval between a time when the data of the service arrives at the layer 2 and a start time of transmission through the CG, or a time interval between a time when the data of the service arrives at the layer 2 and an end time of transmission through the CG.

Optionally, the processing delay of the service in layer 2 is an average processing duration or a minimum processing duration of the data of the service in layer 2.

Optionally, the transmission delay is a transmission delay of the service transmitted by the CG last time; or the transmission delay is the transmission delay of the next transmission of the service through the CG.

Optionally, the period deviation information reported by the receiving terminal includes: and receiving a control element of a Medium Access Control (MAC), wherein the control element of the MAC carries the period deviation information.

Optionally, the period deviation information further includes: type indication information and/or identification of the CG; the type indication information is used for indicating whether the period deviation value is the period deviation value of the data to be transmitted.

In a third aspect, an embodiment of the present application further provides a data transmission apparatus, where the apparatus includes: the measuring module is used for measuring a period deviation value of the configuration authorization CG, and the period deviation value is used for reflecting the transmission delay of the service transmitted through the CG; and the reporting module is used for reporting the period deviation information to the network equipment, wherein the period deviation information comprises the period deviation value.

In a fourth aspect, embodiments of the present application further provide a data transmission apparatus, where the apparatus includes: the receiving module is used for receiving the period deviation information reported by the terminal, wherein the period deviation information comprises a period deviation value of a configuration authorization CG, and the period deviation value is used for reflecting the transmission delay of the service transmitted through the CG; the adjusting module is used for adjusting the starting moment of the CG according to the periodic deviation value; and the sending module is used for indicating the adjusted CG starting time to the terminal.

In a fifth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, causes the data transmission method provided in any of the above aspects to be performed.

In a sixth aspect, an embodiment of the present application provides a terminal, including a memory and a processor, where the memory stores a computer program that can be run on the processor, and the processor executes the steps of the data transmission method provided in the first aspect when the processor runs the computer program.

In a seventh aspect, embodiments of the present application provide a network device, including a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the data transmission method provided in the second aspect when the processor executes the computer program.

Compared with the prior art, the technical scheme of the embodiment of the application has the following beneficial effects:

in the scheme of the embodiment of the application, the terminal measures the period deviation value of the configuration authorization CG and reports the period deviation value to the network equipment. The period deviation value can reflect the transmission delay of the service transmitted by the CG, so that the network equipment can know the deviation between the transmission period and the service period which are configured for the terminal at present, and can be adjusted in a targeted manner, so that the CG which is configured for the terminal and the service period are more matched, and the CG is beneficial to reducing the data transmission delay. Compared with configuring a plurality of CG for service to reduce the possibility of mismatch between CG period and service period, the scheme of the application can also avoid waste of resources.

Further, in the solution of the embodiment of the present application, the period deviation value is reported to the network device only when the period deviation value is greater than or equal to the preset threshold value. With such a scheme, signaling overhead is advantageously reduced.

Further, in the solution of the embodiment of the present application, the preset threshold value is configured according to CG, and the preset threshold values corresponding to different CGs may be different. The threshold value can be flexibly configured by adopting the scheme so as to meet the requirements of different services on transmission delay.

Further, in the solution of the embodiment of the present application, measurement indication information is received from a network device, where the measurement indication information includes a first identifier for indicating a CG to be measured, or a second identifier for indicating a service transmitted by the CG to be measured, and then, in response to the measurement indication information, the terminal measures a period deviation value of the CG. By adopting the scheme, the network equipment can instruct the terminal to measure the periodical deviation value of partial CG according to the actual situation, thereby being beneficial to reducing the processing complexity of the terminal and reducing the processing burden of the terminal.

Further, in the scheme of the embodiment of the application, the result of subtracting the processing time delay from the transmission time delay of the service data is used as the period deviation value, and the network equipment can more accurately adjust the starting time of the CG so as to meet the actual processing requirement of the service.

Further, in the scheme of the embodiment of the application, the transmission delay of the next time of the service through CG transmission is measured, and under the condition that the CG period is larger, the network equipment has the opportunity to adjust the starting position of the CG before the next transmission after receiving the period deviation value, thereby being beneficial to realizing the quick transmission of the data to be transmitted.

Furthermore, in the scheme of the embodiment of the application, the period deviation information is reported through the control element of the MAC, so that the measured period deviation value can be reported more quickly, and the network equipment can adjust the starting time of the CG in time.

Drawings

Fig. 1 is a schematic flow chart of a data transmission method in an embodiment of the present application;

FIG. 2 is a schematic diagram of a periodic deviation value in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a MAC CE according to an embodiment of the present application;

FIG. 4 is a timing diagram of a MAC CE and CG according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another data transmission device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal in an embodiment of the present application.

Detailed Description

As described in the background art, the configurable CG period is relatively limited, and a situation that the service period and the CG period are not matched easily occurs, so that a problem of relatively large transmission delay and the like is caused.

Specifically, the terminal reports the service period to the network device, which is limited by the limited binary number range, and the reporting period of the terminal may deviate from the actual service period. For example, the actual service period is a non-integer (e.g. 16.7 ms), and the terminal can only report the period of the integer value (e.g. 10ms, 20ms, 40ms, etc.), so the period reported by the terminal may be inaccurate, the network device cannot learn the exact service period, and thus a period that is not matched is configured for the terminal, that is, a deviation exists between the transmission period and the service period of the configuration grant. Over time, the deviation may become larger, which may easily cause data to be unable to be transmitted in time, or even cause data to fail because of too much delay.

Therefore, the embodiment of the application provides a data transmission method, in the scheme of the embodiment of the application, the terminal measures the period deviation value of the configuration authorization CG and reports the period deviation value to the network device. The period deviation value can reflect the transmission delay of the service transmitted by the CG, so that the network equipment can know the deviation between the transmission period and the service period which are configured for the terminal at present, and can be adjusted in a targeted manner, so that the CG which is configured for the terminal and the service period are more matched, and the CG is beneficial to reducing the data transmission delay. Compared with configuring a plurality of CG for service to reduce the possibility of mismatch between CG period and service period, the scheme of the application can also avoid waste of resources.

It should be noted that, the communication system applicable to the embodiment of the present application includes, but is not limited to, a third generation system (3 th-generation, abbreviated as 3G), a long term evolution (long term evolution, abbreviated as LTE) system, a fourth generation system (4 th-generation, abbreviated as 4G), a fifth generation (5 th-generation, abbreviated as 5G) system, a New Radio (abbreviated as NR) system, and a future evolution system or a plurality of communication fusion systems. The 5G system may be a non-independent Networking (NSA) 5G system or an independent networking (SA) 5G system. The scheme of the embodiment of the application can be also applied to various new communication systems in the future, such as 6G, 7G and the like.

A terminal in an embodiment of the present application may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber Station, a Mobile Station (MS), a remote Station, a remote terminal, a Mobile device, a User terminal, a terminal device (Terminal Equipment), a wireless communication device, a User agent, or a User apparatus. The terminal may also be a cellular phone, a cordless phone, 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 capability, a computing device or other processing device connected to a wireless modem, a car-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile network (Public Land Mobile Network, PLMN) etc., as examples of which the embodiments are not limited.

The network device in the embodiments of the present application may also be referred to as an access network device, for example, may be a Base Station (BS) (also referred to as a base station device), and the network device is a device deployed in a radio access network (Radio Access Network, RAN) to provide a wireless communication function. For example, the device for providing a base station function in the second generation (2 nd-generation, abbreviated as 2G) network includes a base radio transceiver station (base transceiver station, abbreviated as BTS), the device for providing a base station function in the third generation (3 rd-generation, abbreviated as 3G) network includes a Node B (Node B), the device for providing a base station function in the fourth generation (4 th-generation, abbreviated as 4G) network includes an evolved Node B (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, abbreviated as WLAN) is an Access Point (AP), the next generation base station Node (next generation Node base station, abbreviated as gNB) in NR, and the Node B (ng-eNB) continuing to evolve, wherein the gNB and the terminal device communicate using NR technology, and the ng-eNB and the terminal device communicate using evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, abbreviated as E-UTRA) technology, and the gNB and the ng-eNB can be connected to the 5G core network. The network device in the embodiment of the present application further includes a device that provides a base station function in a new communication system in the future, and the like.

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

Referring to fig. 1, fig. 1 is a flow chart of a data transmission method in an embodiment of the present application. The data transmission method shown in fig. 1 may include steps S11 to S14.

In step S11, the terminal measures the period deviation value of the configuration authorization CG.

In an implementation, a terminal accesses a network and establishes a radio resource control (Radio Resource Control, abbreviated RRC) connection, after authentication is completed, a network device may establish one or more data radio bearers (Data Radio Bearer, abbreviated DRBs) for the terminal, and then the terminal may perform data transmission with the network device.

For each DRB, the terminal may report the characteristic information of each service to the network device through a UE assistance message, so that the network device can configure appropriate transmission resources for the UE. Wherein the characteristic information may include one or more of: the period of packet generation, the time offset of packet generation, the size of the packet, etc., but is not limited thereto. The time offset of the packet generation may be a start time of the packet generation time within the packet generation period.

When the transmission resource is configured for the terminal, the network device can be configured in a semi-static configuration authorization mode so as to reduce signaling interaction flow. More specifically, the transmission resources of the CG may include time domain resources and frequency domain resources. The time domain resources of CG are periodic and after configuration, the terminal may periodically transmit data.

In the embodiment of the present application, the period of the time domain resource of the CG is referred to as "CG period", and the "start time of the CG" in the embodiment of the present application may refer to the start time of the time domain resource of the CG. For example, for CG of a 20ms period, the start position may be any position in the 20ms period, and if the start position is 2ms, this means that the uplink transmission resource is a semi-statically configured transmission resource starting from 2ms in the 20ms period.

Note that, in the embodiment of the present application, the CG may be a CG of Type1 (Type 1) or a CG of Type2 (Type 2), which is not limited in this embodiment. In the CG of the type1, each parameter of the CG is configured by RRC signaling; in CG of type two, part of the transmission parameters, such as the period, are configured by RRC signaling and then activated/deactivated by downlink control information (Downlink Control Information, DCI for short).

Step S11 may be performed in the process of data transmission by the terminal using the CG configured by the network device.

In an embodiment of the present application, the measurement of the periodic deviation value may be triggered by the network device during traffic.

In particular, the network device may send measurement indication information to the terminal to trigger the terminal to measure the period deviation value of the CG. Accordingly, the terminal receives measurement indication information from the network device, and performs step S11 in response to the measurement indication information.

The measurement indication information may include indication information of CG to be measured.

In a specific example, the measurement indication information may include: for indicating a first identity of the CG to be measured. That is, the first identifier may be used to indicate the CG to be measured, and the terminal may determine the CG to be measured according to the first identifier.

In another specific example, the measurement indication information may include: and the second identifier is used for indicating the service transmitted by the CG to be measured. That is, the second identifier is used to indicate the service, and the terminal may determine the service according to the second identifier, and determine the CG of the service for transmitting the indication of the second identifier as the CG to be measured.

More specifically, the second identifier may be an identifier of a logical channel, or an identifier of a DRB, which is not limited by the embodiment.

In a specific implementation, the network device may configure a plurality of CGs for the terminal, and the network device may instruct the terminal to measure the periodic deviation values of all the CGs through measurement instruction information, or may instruct the terminal to measure the periodic deviation values of a part of the plurality of CGs through measurement instruction information.

It should be noted that, in this embodiment, configuring multiple CG for a terminal does not refer to a possible case where multiple CG are configured for a single service to improve the matching between CG period and service period, and in this embodiment, multiple CG configured for a terminal by a network device may be used to transmit different services.

In one non-limiting example, before the network device sends measurement indication information to the terminal, the network device may determine the CG to be measured according to the processing power of the terminal and/or the traffic transmitted by each CG. For example, the higher the processing capability of the terminal, the greater the number of CG to be measured indicated by the measurement instruction information. As another example, the lower the tolerance of traffic to latency, the more preferentially CG is measured for transporting that traffic.

Further, the terminal may measure its period deviation value for the CG indicated by the measurement indication information.

In another embodiment of the present application, when the network device configures the CG for the terminal, the terminal may also be configured to periodically measure the period deviation value of the CG. More specifically, for CG for traffic with low latency requirements, the network device may, when configuring the CG, instruct the terminal to periodically measure the period offset value of the CG.

In the solutions of other embodiments of the present application, the measurement of the periodic deviation value may also be actively initiated by the terminal, which is not limited in this application.

The following describes, without limitation, the specific content of measuring the period deviation value of CG.

Referring to fig. 2, fig. 2 is a schematic diagram of a period deviation value in an embodiment of the present application.

In practical applications, the data of the service needs to be processed in layer 2 before being transmitted. After the data of the service arrives at layer 2, it needs to be processed, and after the processing is completed, it can be transferred through CG. For example, processing data at layer 2 includes, but is not limited to: packet data convergence protocol (Packet Data Convergence Protocol, PDCP) processing (e.g., ciphering, header compression, etc.), radio link layer control (Radio Link Control, RLC) protocol layer processing (e.g., increasing RLC sequence numbers), and medium access control (Medium Access Control, MAC) layer processing (e.g., generating MAC protocol data units (Protocol Data Unit, PDUs)) and the like, but are not limited thereto.

After the MAC layer processing in the solution of this embodiment, the terminal may send out the data packet, for example, through CG. In fact, the MAC layer processing may include a physical layer processing procedure, where the MAC layer may learn, through scheduling information of the network device, that a data packet is transmitted in a certain time slot, and before the data packet is transmitted in the time slot, it is necessary to form a MAC PDU in advance and perform the physical layer processing, and then, the data packet may be transmitted in the designated time slot.

As shown in fig. 2, t1 may represent a time when data of a service arrives at layer 2, t2 may represent a time when the data is processed at layer 2, t3 may represent a start time when the data is transferred through CG, and t4 may represent an end time when the data is transferred through CG.

In an ideal case, the terminal expects to obtain an Uplink Grant (Uplink Grant) at t2, and transmits the processed data on a physical Uplink shared channel (Physical Uplink Shared Channel, abbreviated as PUSCH), however, due to the fact that the CG period configured by the network device and the actual service transmission period are not matched, the time when the data actually obtains the Uplink Grant is t3, that is, the transmission starts at t3, and the transmission ends at t 4. Due to mismatch of CG period and service period, transmission delay is larger and larger over time, that is, the time interval between t1 and t3 is larger and larger, so that CG configuration needs to be adjusted to make the starting time of CG transmission approach to t2 as much as possible, so as to reduce data transmission delay.

For this reason, in the scheme of this embodiment, the period deviation value of the CG may be measured during the data transmission process, so that the network device may adjust the CG configuration.

Specifically, the period deviation value may be a result of subtracting the processing delay of the service at layer 2 from the transmission delay of the CG. The processing procedure of layer 2 is not limited in this embodiment, and the processing of layer 2 may include not only the processing of PDCP, RLC and MAC layers, but also the processing delay of the physical layer. In other words, the processing delay at layer 2 may be a time period between a time point when the data reaches layer 2 and a time point when the data is earliest in an upstream transmissible state after being processed by layer 2. The state in which the uplink grant is transmitted may be referred to as a state in which the uplink grant is transmitted.

The transmission delay of the CG may refer to a time interval between a time when data of a service transmitted by the CG reaches layer 2 and a start time of transmission through the CG. For example, the time interval between t1 and t3 may represent the transmission delay of the CG. In a specific implementation, the time when the data arrives at layer 2 may be the time when the data arrives at the PDCP entity to which the data corresponds.

In other embodiments, the transmission delay of the CG may also refer to a time interval between when the data of the service transmitted by the CG reaches layer 2 and the end time of transmission through the CG. For example, the time interval between t1 and t4 may also represent the transmission delay of the CG.

In practical applications, t2 may be constantly changing.

Specifically, in practical applications, the terminal may have data of multiple services processed at layer 2 at the same time. For example, when there are multiple high-rate services to be processed at the same time, the encryption processing module in layer 2 is used by multiple DRBs in a time sharing manner, and if the data size of a certain DRB is large, it takes a long time, so that the encryption processing of other DRBs takes more time. Therefore, the processing duration of the service data at layer 2 each time is changed along with the change of the throughput rate of the terminal. That is, the processing delay may depend on the throughput of the UE.

Therefore, in order to determine the processing delay of the service at the layer 2 more accurately, in the scheme of this embodiment, the average processing duration or the minimum processing duration of the data of the service at the layer 2 may be used as the processing delay of the service at the layer 2. More specifically, the average processing time length or the minimum processing time length of the service data in the layer 2 in the last period of time can be taken as the processing time delay. The present embodiment is not limited to the duration of the "last period of time".

In one non-limiting example, for a service with a dedicated channel at layer 2, the processing delay of the service at layer 2 is typically relatively fixed because other services cannot use its dedicated channel. For example, low latency high reliability communication (urls) service has a high requirement for latency, and in order to ensure transmission latency of a urls service, data processing is typically performed on a dedicated channel of a urls service, but a non-urls service does not use the dedicated channel.

Therefore, for a service having a dedicated channel in layer 2, the processing duration of the data of the service in layer 2 last time can be used as the processing delay of the service in layer 2. Correspondingly, for the service without a dedicated channel in the layer 2, the average processing duration or the minimum processing duration of the service data in the layer 2 can be used as the processing time delay of the service in the layer 2.

From this, the period deviation value of CG can be obtained. Accordingly, if the period deviation values of a plurality of CGs are measured, the period deviation values of the respective CGs may be determined separately using the method described above.

In other embodiments of the present application, considering that the terminal may report delay information to the network device, the terminal may also directly report the CG transmission delay as a CG period offset value, and the network device may obtain an actual period offset value according to the received transmission delay and delay information.

The delay information may refer to PDCP packet delay (i.e., PDCP Packet Delay in the UL per DRB) of each DRB in the uplink, among others. More specifically, if the network device configures the terminal to report the delay information in the measurement report, the terminal may report only the CG transmission delay as the CG period offset value. Here, "measurement report" does not mean a report of measurement of a periodic deviation value.

By adopting the scheme, the processing burden of the terminal is reduced, and the measuring efficiency is improved. The specific content of the "CG transmission delay" may be referred to the above description, and will not be described herein.

In a specific implementation, the period deviation value of the CG may be measured on data already transmitted through the CG, or may be measured on data to be transmitted through the CG.

Case one: and detecting the transmission time delay of the data transmitted through the CG at the last time to obtain the periodical deviation value of the CG. Thus, the measured period deviation value may reflect the transmission delay of the last CG transmission of the service.

Specifically, the transmission delay of the CG may be determined according to the time when the data last transmitted through the CG arrives at layer 2 and the start time or end time when it is transmitted.

And a second case: detecting the transmission delay of data to be transmitted through the CG to obtain the periodical deviation value of the CG. Thus, the measured period deviation value can reflect the transmission delay of the next CG transmission of the service. In other words, the measured period deviation value is the period deviation value of the data to be transmitted.

Specifically, the terminal may estimate the starting time when the data to be transmitted (i.e., the data to be transmitted through CG) is sent according to the starting time and CG period of the last CG transmission of the service, and then calculate the transmission delay of the data to be transmitted according to the time when the data to be transmitted reaches layer 2 and the estimated starting time when the data to be transmitted is sent.

Continuing with fig. 1, in step S12, the terminal reports the period deviation information to the network device.

Specifically, the period deviation information may include: a period deviation value.

In a specific implementation, the terminal may report the period deviation information on an uplink dynamically scheduled physical uplink shared channel (Physical Uplink Shared Channel, abbreviated PUSCH). In this case, the period deviation information may also include CG identification, so that the network device can know which CG or CG period deviation values the terminal reported.

Further, the period deviation information may further include type indication information, which may be used to indicate whether the period deviation value is a period deviation value of the data to be transmitted.

In a specific example, the terminal may report the period deviation information through the MAC CE. The information reporting can be realized quickly through the MAC layer reporting, which is helpful for network equipment to obtain the reporting information in time so as to adjust the CG, such as adjusting the initial position of the CG in the period.

Referring to fig. 3, fig. 3 is a schematic diagram of a format of a MAC CE in an embodiment of the present application.

Specifically, fig. 3 shows an 8-bit MAC CE to carry the period deviation information. Wherein bit 1 may be used to carry type indication information. For example, a value of 1 st bit is 1, which indicates that the reported period deviation value is the period deviation value of the data to be transmitted, and a value of 0 st bit is 0, which indicates that the reported period deviation value is the period deviation value of the data transmitted last time (i.e., the reported period deviation value is the period deviation value of the data already transmitted). Bits 2 to 4 may be used to carry CG identification; bits 5 through 8 may be used to indicate the period deviation value.

In a specific implementation, the terminal may report when the period deviation value of the CG is greater than or equal to a preset threshold value. Specifically, if the period deviation value of the CG is greater than or equal to a preset threshold value, the period deviation information is reported, otherwise, the period deviation information is ignored. It should be noted that "ignoring the period deviation information" in the embodiment of the present application may mean ignoring the report of the period deviation information, for example, discarding the period deviation value obtained by the measurement.

The preset threshold value may be preconfigured by the network device or may be defined by a protocol, which is not limited in this embodiment.

In a non-limiting example, the preset threshold value may be configured by the network device according to CG, where the preset threshold values corresponding to different CGs may be the same or different.

In particular implementations, this may be configured according to the tolerance of CG transmitted traffic to latency. For example, for CG used for transmitting low latency traffic, the preset threshold may be set lower, and correspondingly, if the transmitted traffic has a lower latency requirement, i.e., a higher tolerance to latency, the preset threshold may be set higher. In a specific example, the preset threshold value may be determined according to a packet delay budget (Package Delay Budget, abbreviated PDB) of the CG transmitted traffic.

By adopting the scheme, the requirements of different services can be met, so that excessive processing burden on the terminal is avoided.

If the network device instructs the terminal to measure the period deviation values of a plurality of CGs, the terminal may report the period deviation values of the CGs after the measurement. That is, the reported period deviation information may include period deviation information of each CG. More specifically, the period deviation values of the respective CGs may be reported through the same MAC CE.

More specifically, for each CG being measured, if the period deviation value is greater than or equal to a preset threshold value corresponding to the CG, the period deviation value of the CG is reported. That is, the terminal may report CG and its period offset value, where each period offset value is greater than or equal to a corresponding preset threshold value.

In the solution of an embodiment of the present application, before executing step S12, the terminal may further determine whether reporting is needed. The present report may not be performed in one or more of the following cases, but is not limited thereto:

case one: CG overlaps with other configuration grants in the time domain, and other configuration grants have higher priority for traffic transmitted;

and a second case: the CG and the uplink grant of dynamic scheduling are overlapped in the time domain, and the priority of the service transmitted by the uplink grant of dynamic scheduling is higher;

And a third case: CG overlaps with Measurement Gap in the time domain.

The measurement gap is not a gap for measuring a period deviation value in the present embodiment, but a measurement gap configured by the network device for other measurements, for example, inter-frequency measurement or inter-system measurement, which is not limited in the present embodiment.

In a specific example, it may be determined whether the period deviation information needs to be reported after step S11 and before step S12. That is, after the period deviation value is measured, if the CG has one or more conditions, the reported period deviation information may be ignored.

In another specific example, it may be determined whether the period deviation information needs to be reported before step S11. For example, after receiving the measurement instruction information, it may be determined whether the CG to be measured has the above-described situation, and if so, it may not be measured.

With continued reference to fig. 1, in step S13, the network device adjusts the start time of the CG according to the period deviation value.

Specifically, the network device may adjust the starting time of the time domain resource of the CG according to the periodic deviation value.

In a specific implementation, if the period deviation value reported by the terminal is the result of subtracting the service processing time delay from the transmission time delay transmitted through the CG, the network device may directly adjust the starting time of the CG according to the period deviation value.

If the period deviation value reported by the terminal is the transmission delay transmitted through the CG, the network equipment can firstly exclude the processing delay contained in the transmission delay to obtain an excluded result, and adjust the starting moment of the CG according to the excluded result. That is, the network device may calculate a transmission delay minus a processing delay of the service, and adjust the start time of the CG according to the result. As described above, the network device may obtain the actual period deviation value according to the received transmission delay and delay information.

In step S14, the network device configures the adjusted CG start time to the terminal.

In a specific implementation, the network device may send scheduling information to the terminal, where the scheduling information may be used to indicate the adjusted CG start time. In a specific example, when CG belongs to Type2, the scheduling information may be downlink control information (Downlink Control Information, DCI for short). That is, the CG starting position within the period may be adjusted by the new DCI; for Type 1CG, the scheduling information may be RRC signaling, i.e., the network device may adjust the starting position of the CG within the period through RRC signaling.

Correspondingly, after receiving the scheduling information, the terminal can adjust the starting time of the CG, and perform the next data transmission by adopting the adjusted starting time of the CG.

As described above, if the network device determines that the period deviation value is the period deviation value of the data to be transmitted according to the type indication information, the network device has an opportunity to immediately adjust the start position of the CG to avoid delay of the data to be transmitted.

Referring to fig. 4, fig. 4 is a timing diagram of a MAC CE and CG according to an embodiment of the present application.

As shown in fig. 4, t5 is a transmission time of the MAC CE 41 carrying a period deviation value of data to be transmitted, and t6 is a start time of the current CG. If the CG start time is not adjusted, the data to be transmitted will start to be transmitted at t 6.

In this case, the network device may send scheduling information to the terminal between t5 and t6, so that the terminal can adjust the transmission time of the CG as soon as possible, thereby reducing the delay of the data to be transmitted.

In view of the above, in the scheme of the embodiment of the present application, for the case that the CG period and the service period are not matched, the terminal measures the latest or next period deviation value of the CG, and eliminates the influence of the processing delay of the terminal when calculating the period deviation value, thereby being beneficial to reducing the delay when adopting the CG to transmit data.

It will be appreciated that in a specific implementation, the method may be implemented in a software program running on a processor integrated within a chip or a chip module; alternatively, the method may be implemented in hardware or a combination of hardware and software, for example, implemented in a dedicated chip or chip module, or implemented in a dedicated chip or chip module in combination with a software program.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a data transmission device in an embodiment of the present application, where the data transmission device shown in fig. 5 may be disposed in the terminal, and the device shown in fig. 5 may include:

a measurement module 51, configured to measure a period deviation value of a configured authorized CG, where the period deviation value is used to reflect a transmission delay of a service transmitted through the CG;

and the reporting module 52 is configured to report the period deviation information to the network device, where the period deviation information includes the period deviation value.

In a specific implementation, the data transmission apparatus shown in fig. 5 may correspond to a chip having a communication function in a terminal; or corresponds to a chip or a chip module having a communication function included in the terminal, or corresponds to the terminal.

Referring to fig. 6, fig. 6 is a schematic structural diagram of another data transmission apparatus in the embodiment of the present application, where the data transmission apparatus shown in fig. 6 may be deployed in the network device, and the apparatus shown in fig. 6 may include:

a receiving module 61, configured to receive period deviation information reported by a terminal, where the period deviation information includes a period deviation value of a configured grant CG, where the period deviation value is used to reflect a transmission delay of a service transmitted through the CG;

An adjustment module 62, configured to adjust a start time of the CG according to the period deviation value;

a sending module 63, configured to indicate the adjusted CG start time to the terminal.

In a specific implementation, the data transmission apparatus shown in fig. 6 may correspond to a chip having a communication function in a network device; or corresponds to a chip or a chip module having a communication function included in the network device, or corresponds to the network device.

For more matters such as the working principle, the working method and the beneficial effects of the data transmission device in the embodiments of the present application, reference may be made to the above related description about the data transmission method, which is not repeated here.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when being executed by a processor, performs the above-mentioned data transmission method. The storage medium may include ROM, RAM, magnetic or optical disks, and the like. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory (non-transitory) or the like.

The embodiment of the application also provides a terminal, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of the data transmission method when running the computer program. The terminal comprises, but is not limited to, a mobile phone, a computer, a tablet personal computer and other terminal equipment. The terminal may be a mobile phone, a computer, a tablet computer, a vehicle-mounted terminal, a wearable device, etc., but is not limited thereto.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a terminal in an embodiment of the present application. The terminal shown in fig. 7 comprises a memory 71 and a processor 72, the processor 72 being coupled to the memory 71, the memory 71 being either located inside the terminal or outside the terminal. The memory 71 and the processor 72 may be connected by a communication bus. The memory 71 has stored thereon a computer program executable on the processor 72, which processor 72 executes the steps of the data transmission method provided by the above embodiment when it runs.

The embodiment of the application also provides a network device, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of the data transmission method when running the computer program.

The structure of the network device may be described with reference to fig. 7, and will not be described herein.

It should be appreciated that in the embodiment of the present application, the processor may be a central processing unit (central processing unit, abbreviated as CPU), and the processor may also be other general purpose processors, digital signal processors (digital signal processor, abbreviated as DSP), application specific integrated circuits (application specific integrated circuit, abbreviated as ASIC), field programmable gate arrays (field programmable gate array, abbreviated as 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 in embodiments of the present application may be either 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 ROM (electrically EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (random access memory, RAM for short) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, abbreviated as RAM) are available, such as static random access memory (static RAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, abbreviated as DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus random access memory (direct rambus RAM, abbreviated as 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 comprises 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 described in accordance with the embodiments of the present application are all or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired or wireless means from one website, computer, server, or data center.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be 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 form.

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 on 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 application may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments herein refers to two or more.

The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention shall be defined by the appended claims.

Claims (29)

1. A data transmission method, wherein the method is applied to a terminal, and comprises:

measuring a period deviation value of a configuration authorization CG, wherein the period deviation value is used for reflecting the transmission delay of a service transmitted through the CG;

and reporting the periodic deviation information to network equipment, wherein the periodic deviation information comprises the periodic deviation value.

2. The method of claim 1, wherein reporting the period deviation information to the network device comprises:

and if the period deviation value is larger than or equal to a preset threshold value, reporting the period deviation information to the network equipment.

3. The data transmission method according to claim 2, wherein the preset threshold value is configured according to the CG, and the preset threshold values corresponding to different CGs are the same or different.

4. The data transmission method according to claim 1, wherein measuring the period deviation value of the CG includes:

And measuring a period deviation value of the CG in response to measurement indication information of the network equipment.

5. The data transmission method according to claim 1, wherein before measuring the period deviation value of the CG, the method further comprises:

and receiving measurement indication information from the network equipment, wherein the measurement indication information comprises a first identifier for indicating the CG to be measured or a second identifier for indicating the service transmitted by the CG to be measured.

6. The data transmission method of claim 5, wherein the second identifier is an identifier of a logical channel or an identifier of a data radio bearer DRB.

7. The data transmission method according to claim 1, wherein measuring the period deviation value of the CG includes:

determining the transmission delay, wherein the transmission delay is a time interval between the time when the data of the service arrives at the layer 2 and the starting time of the transmission through the CG, or a time interval between the time when the data of the service arrives at the layer 2 and the ending time of the transmission through the CG;

and taking the transmission delay as the period deviation value, or taking the result of subtracting the processing delay of the service in the layer 2 from the transmission delay as the period deviation value.

8. The data transmission method according to claim 7, wherein the processing delay of the service in layer 2 is an average processing duration or a minimum processing duration of the data of the service in layer 2.

9. The data transmission method according to claim 1, wherein the transmission delay is a transmission delay of the service transmitted through the CG last time;

or the transmission delay is the transmission delay of the next transmission of the service through the CG.

10. The method of claim 1, wherein reporting the period deviation information to the network device comprises:

and reporting the period deviation information through a control element of a Medium Access Control (MAC).

11. The data transmission method according to claim 1, wherein the period deviation information further includes: type indication information and/or identification of the CG;

the type indication information is used for indicating whether the period deviation value is the period deviation value of the data to be transmitted.

12. The data transmission method according to claim 1, characterized in that the method further comprises:

if the CG overlaps with other configuration grants in the time domain and the priority of the traffic transmitted by the other configuration grants is higher, ignoring the period deviation information;

And/or if the CG overlaps with the dynamically scheduled uplink grant in the time domain and the priority of the traffic transmitted by the dynamically scheduled uplink grant is higher, ignoring the period deviation information;

and/or if the configuration grant overlaps with the measurement gap in the time domain, ignoring the period deviation information.

13. The data transmission method according to claim 1, characterized in that the method further comprises:

scheduling information is received from the network device, the scheduling information being used to adjust a starting time of the CG.

14. A method of data transmission, the method being applied to a network device and comprising:

receiving period deviation information reported by a terminal, wherein the period deviation information comprises a period deviation value of a configuration authorization CG, and the period deviation value is used for reflecting the transmission delay of a service transmitted through the CG;

according to the periodic deviation value, adjusting the starting moment of the CG;

and indicating the starting moment of the adjusted CG to the terminal.

15. The data transmission method according to claim 14, wherein the period deviation information is reported by the terminal when the period deviation value is greater than or equal to a preset threshold value.

16. The data transmission method of claim 15, wherein the preset threshold value is the same or different according to the CG configuration, and the preset threshold values corresponding to different CGs are the same or different.

17. The data transmission method according to claim 14, wherein before receiving the period deviation information reported by the terminal, the method further comprises:

and sending measurement indication information to the terminal so as to trigger the terminal to measure the periodical deviation value of the CG.

18. The data transmission method according to claim 17, wherein the measurement indication information includes a first identifier for indicating CG to be measured or a second identifier for indicating traffic transmitted by the CG to be measured.

19. The data transmission method of claim 18, wherein the second identifier is an identifier of a logical channel or an identifier of a data radio bearer DRB.

20. The data transmission method according to claim 14, wherein the periodic deviation value is the transmission delay or the periodic deviation value is a result of subtracting the processing delay of the service at layer 2 from the transmission delay;

the transmission delay refers to a time interval between a time when the data of the service arrives at the layer 2 and a start time of transmission through the CG, or a time interval between a time when the data of the service arrives at the layer 2 and an end time of transmission through the CG.

21. The method of claim 20, wherein the processing delay of the service at layer 2 is an average processing duration or a minimum processing duration of the data of the service at layer 2.

22. The data transmission method according to claim 20, wherein the transmission delay is a transmission delay of the service transmitted through the CG last time;

or the transmission delay is the transmission delay of the next transmission of the service through the CG.

23. The data transmission method according to claim 14, wherein the receiving the period deviation information reported by the terminal includes:

and receiving a control element of a Medium Access Control (MAC), wherein the control element of the MAC carries the period deviation information.

24. The data transmission method according to claim 14, wherein the period deviation information further includes: type indication information and/or identification of the CG;

the type indication information is used for indicating whether the period deviation value is the period deviation value of the data to be transmitted.

25. A data transmission apparatus, the apparatus comprising:

the measuring module is used for measuring a period deviation value of the configuration authorization CG, and the period deviation value is used for reflecting the transmission delay of the service transmitted through the CG;

And the reporting module is used for reporting the period deviation information to the network equipment, wherein the period deviation information comprises the period deviation value.

26. A data transmission apparatus, the apparatus comprising:

the receiving module is used for receiving the period deviation information reported by the terminal, wherein the period deviation information comprises a period deviation value of a configuration authorization CG, and the period deviation value is used for reflecting the transmission delay of the service transmitted through the CG;

the adjusting module is used for adjusting the starting moment of the CG according to the periodic deviation value;

and the sending module is used for indicating the adjusted CG starting time to the terminal.

27. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being run by a processor, causes the data transmission method of any one of claims 1 to 13 or the data transmission method of any one of claims 14 to 24 to be performed.

28. A terminal comprising a memory and a processor, said memory having stored thereon a computer program executable on said processor, characterized in that said processor executes the steps of the data transmission method according to any of claims 1 to 13 when said computer program is executed.

29. A network device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the data transmission method according to any of claims 14 to 24 when the computer program is executed.