CN109587795B

CN109587795B - Uplink data authorization-free transmission method, device and medium

Info

Publication number: CN109587795B
Application number: CN201710911526.9A
Authority: CN
Inventors: 周伟; 倪吉庆
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2020-10-30
Anticipated expiration: 2037-09-29
Also published as: CN109587795A; WO2019062851A1

Abstract

The invention discloses an uplink data authorization-free transmission method, device and medium, which are used for saving DCI (Downlink control information) overhead and increasing control channel capacity while realizing uplink data authorization-free transmission. The uplink data authorization-free transmission method comprises the following steps: configuring transmission resources for unlicensed uplink data transmission for a group of User Equipment (UE); and sending resource configuration information of the transmission resources configured for the group of UEs to the group of UEs by using the group common control signaling.

Description

Uplink data authorization-free transmission method, device and medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to an uplink data authorization-free transmission method, apparatus, and medium.

Background

This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

In an LTE (Long Time Evolution, Long term Evolution) system, a terminal wants to send data in a certain uplink subframe, and needs to send a Scheduling Request (SR) to a base station first. And after the terminal obtains the uplink Grant scheduling (UL-Grant) sent by the base station, the terminal sends data on the uplink resource allocated by the base station. Based on the scheduling mode, the transmission delay of the uplink information is relatively large due to the need of sending the SR and waiting for the UL-Grant.

In a 5G (5 th generation mobile Communication system) Communication system, for an uplink high-reliability low-Latency Communication (URLLC) service, a conventional Grant-based resource scheduling method cannot meet the delay requirement of the service, and therefore an uplink data Grant-free (UL Grant-free) transmission scheme is proposed in 5G.

An uplink Semi-Persistent Scheduling (UL-SPS) in the LTE system may be regarded as a special UL Grant-free transmission scheme, and a base station configures a period of the UL-SPS through RRC (Radio Resource Control) signaling, and then configures frequency domain resources through UE-specific DCI (downlink Control Information, for UE). While the UE-specific DCI is also used to activate/deactivate UL-SPS transmissions. URLLC service in 5G often occurs sporadically, and in order to improve spectrum efficiency, the same time-frequency resource is configured for multiple terminals. If the UE-Specific DCI is used to indicate resource allocation and activation/deactivation, the overhead of the DCI is greatly increased, and the capacity of a control channel is reduced.

Disclosure of Invention

The embodiment of the invention provides an uplink data authorization-free transmission method, device and medium, which are used for saving DCI (downlink control information) overhead and increasing control channel capacity while realizing uplink data authorization-free transmission.

In a first aspect, a method for unlicensed uplink data transmission implemented by a network side is provided, including:

configuring transmission resources for unlicensed uplink data transmission for a group of User Equipment (UE);

and sending resource configuration information of the transmission resources configured for the group of UEs to the group of UEs by using the group common control signaling.

Optionally, before configuring a transmission resource for unlicensed transmission of uplink data for a group of user equipments UEs, the method further includes:

configuring at least one group public radio network temporary identifier for uplink unlicensed scheduling transmission for the group of UEs; and

respectively configuring corresponding group indexes for each UE contained in the group of UEs;

and informing each UE of the configured group public radio network temporary identifier and the corresponding group index thereof by using RRC signaling.

Optionally, before transmitting the transmission resource configuration information configured for the group of UEs to the group of UEs by using the group common control signaling, the method further includes:

scrambling the group common control signaling with a group common radio network temporary identity configured for the group of UEs.

Wherein the resource configuration information includes transmission cycle configuration information and/or transmission resource configuration information.

Optionally, the transmission resource configuration information includes at least one of: time domain resource configuration information, frequency domain resource configuration information, time domain offset configuration information, Modulation and Coding Scheme (MCS) configuration information, demodulation reference signal configuration information and power control parameter configuration information.

Optionally, the modulation and coding scheme configuration information comprises unified MCS configuration information configured for the group of UEs or individual MCS configuration information configured for each UE; the power control parameter configuration information includes unified power control parameter configuration information configured for the group of UEs or individual power control parameter configuration information configured for each UE.

Optionally, before sending the uplink resource configuration information to a group of user equipment UEs, the method further includes:

and informing each UE in the group of UEs of whether the MCS mode or the power control parameter configured for the UE is a uniform configuration mode or an individual configuration mode by utilizing RRC signaling.

Optionally, the demodulation reference signal configuration information includes explicit configuration and implicit configuration, where the explicit configuration refers to directly indicating demodulation reference signal parameters in the set of common control signaling; the implicit configuration refers to the demodulation reference signal parameters configured for the UE determined according to the intra-group index configured for the UE.

Optionally, after configuring transmission resources for unlicensed transmission of uplink data for a group of user equipments UEs, the method further includes:

and transmitting the transmission cycle configuration information configured for the group of UEs to the group of UEs by using Radio Resource Control (RRC) signaling.

In a second aspect, a method for unlicensed uplink data transmission implemented by a terminal side is provided, including:

receiving resource configuration information sent by a network side by using a group common control signaling, wherein the resource configuration information is resource configuration information of transmission resources which are configured for a group of UE (user equipment) by the network side and are used for transmitting uplink data without authorization;

and activating the authorization-free transmission of the uplink data according to the received resource configuration information.

Optionally, before receiving the resource configuration information sent by the network side, the method further includes:

receiving at least one group public radio network temporary identifier and an intra-group index sent by the network side by using RRC signaling, wherein the group public radio network temporary identifier is configured by the network side for a group of UE, and the intra-group index is configured by the network side for each UE in the group of UE.

Optionally, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

judging whether the group of public control signaling is scrambled by using the group of public radio network temporary identifications;

if so, determining that the received group common control signaling is used for indicating the authorization-free transmission of the uplink data; and are

Descrambling the received group public control signaling by using the group public radio network temporary identifier to obtain the resource configuration information in the group public control signaling.

and receiving whether the MCS mode or the power control parameter configured by the network side and notified by the network side through RRC signaling is a unified configuration mode or an independent configuration mode.

Optionally, if the MCS scheme configured by the network side is a uniform configuration scheme, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

determining an MCS for performing the authorization-free transmission of the uplink data according to the unified MCS configuration information;

if the MCS configured by the network side is a single configuration mode, before performing the authorization-free transmission of the activation data according to the received resource configuration information, the method further includes:

and determining the MCS for the authorization-free transmission of the uplink data according to the index in the group configured by the network side.

Optionally, if the power control parameter is in a uniform configuration manner, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

determining a power control parameter for performing authorization-free transmission of uplink data according to the uniform power control parameter configuration information;

if the power control parameter mode is a separate configuration mode, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

and determining a power control parameter for performing the authorization-free transmission of the uplink data according to the index in the group configured by the network side.

Optionally, the demodulation reference signal configuration information includes explicit configuration and implicit configuration;

if the demodulation reference signal is explicitly configured, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

directly reading demodulation reference signal parameters from the set of common control signaling;

if the demodulation reference signal is implicitly configured, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

and determining the demodulation reference signal parameters according to the index in the group configured at the network side.

and receiving the transmission cycle configuration information sent by the network side by utilizing the radio resource control RRC signaling.

In a third aspect, an apparatus for uplink data unlicensed transmission implemented by a network side is provided, including:

a configuration unit, configured to configure a transmission resource for unlicensed uplink data transmission for a group of user equipments UEs;

a sending unit, configured to send resource configuration information of the transmission resources configured for the group of UEs to the group of UEs by using a group common control signaling.

Optionally, the configuring unit is further configured to configure at least one group public radio network temporary identifier for uplink unlicensed scheduling transmission for a group of user equipments UEs before configuring transmission resources for unlicensed transmission of uplink data for the group of UEs; and configuring corresponding intra-group indexes for each UE contained in the group of UEs respectively;

the sending unit is further configured to notify, by using RRC signaling, each UE of the group public radio network temporary identifier configured for the UE and the corresponding intra-group index.

Optionally, the uplink data authorization-free transmission apparatus implemented by the network side further includes:

a scrambling unit, configured to scramble the group common control signaling by using a group common radio network temporary identifier configured for the group UE before the sending unit sends the transmission resource configuration information configured for the group UE to the group UE by using the group common control signaling.

Optionally, the resource configuration information includes transmission cycle configuration information and/or transmission resource configuration information.

Optionally, the sending unit is further configured to notify, by using RRC signaling, that an MCS scheme or a power control parameter configured for each UE in the group of UEs is a uniform configuration scheme or an individual configuration scheme before sending the uplink resource configuration information to the group of UEs.

Optionally, the sending unit is further configured to, after configuring a transmission resource for unlicensed transmission of uplink data for a group of user equipments UEs, send, by using radio resource control RRC signaling, transmission cycle configuration information configured for the group of UEs to the group of UEs.

In a fourth aspect, an apparatus for unlicensed uplink data transmission implemented by a terminal is provided, including:

a receiving unit, configured to receive resource configuration information sent by a network side by using a group common control signaling, where the resource configuration information is resource configuration information of a transmission resource configured for a group of UEs by the network side and used for unlicensed transmission of uplink data;

and the data transmission unit is used for activating the authorization-free transmission of the uplink data according to the received resource configuration information.

Optionally, the receiving unit is further configured to receive, before receiving the resource configuration information sent by the network side, at least one group public radio network temporary identifier and an intra-group index sent by the network side by using RRC signaling, where the group public radio network temporary identifier is configured by the network side for a group of UEs, and the intra-group index is configured by the network side for each UE in the group of UEs.

Optionally, the uplink data authorization-free transmission apparatus implemented by the terminal side further includes a determining unit, where:

a judging unit, configured to judge whether the group of common control signaling is scrambled by using the group of common radio network temporary identifiers before the data transmission unit activates the authorization-free transmission of uplink data according to the received resource configuration information;

the data transmission unit is specifically configured to determine that the received group common control signaling is an authorization-free transmission for indicating uplink data if the determination result of the determination unit is yes; and descrambling the received group public control signaling by using the group public radio network temporary identifier to obtain the resource configuration information in the group public control signaling.

Optionally, the receiving unit is further configured to receive, before receiving the resource configuration information sent by the network side, whether the MCS scheme or the power control parameter configured by the network side and notified by the network side through RRC signaling is a uniform configuration scheme or a separate configuration scheme.

Optionally, the apparatus for uplink data authorization-free transmission implemented by the terminal side further includes:

a first determining unit, configured to determine, according to the unified MCS configuration information, an MCS used for performing the unlicensed transmission of the uplink data before the data transmitting unit activates the unlicensed transmission of the uplink data according to the received resource configuration information, if the MCS configured by the network side is a unified configuration mode; and if the MCS mode configured by the network side is an individual configuration mode, determining the MCS used for the authorization-free transmission of the uplink data according to the index in the group configured by the network side before the data transmission unit activates the authorization-free transmission of the uplink data according to the received resource configuration information.

a second determining unit, configured to determine, according to the uniform power control parameter configuration information, a power control parameter for performing the unlicensed transmission of the uplink data before the data transmission unit performs the unlicensed transmission of the uplink data according to the received resource configuration information, if the power control parameter is in a uniform configuration manner; and if the power control parameter mode is an individual configuration mode, determining the power control parameters for performing the authorization-free transmission of the uplink data according to the intra-group index configured by the network side before the data transmission unit performs the authorization-free transmission of the uplink data according to the received resource configuration information.

Optionally, the demodulation reference signal configuration information includes explicit configuration and implicit configuration; and

the uplink data authorization-free transmission device implemented by the terminal side further comprises:

a reading unit, configured to, if the demodulation reference signal is explicitly configured, directly read a demodulation reference signal parameter from the group of common control signaling before the data transmission unit performs grant-free transmission of uplink data according to the received resource configuration information;

a third determining unit, configured to determine, if the demodulation reference signal is implicitly configured, a demodulation reference signal parameter according to an intra-group index configured by a network side before the data transmission unit performs grant-free transmission of uplink data according to the received resource configuration information.

Optionally, the receiving unit is further configured to receive transmission cycle configuration information sent by the network side by using a radio resource control RRC signaling before the data transmission unit performs the authorization-free transmission of the uplink data according to the received resource configuration information.

In a fifth aspect, a communication apparatus is provided, including: a processor, a memory, and a transceiver; the processor is configured to read a program in the memory and execute the method of any one of the first and second aspects.

Specifically, the processor is configured to read a program in the memory, and execute:

transmitting, by the transceiver, resource configuration information of transmission resources configured for the group of UEs to the group of UEs using group common control signaling.

Optionally, the processor is further configured to configure, by the transceiver, at least one group public radio network temporary identifier for uplink unlicensed scheduling transmission for the group of UEs before transmitting, to the group of UEs, transmission resource configuration information configured for the group of UEs by using group public control signaling; and configuring corresponding intra-group indexes for each UE contained in the group of UEs respectively;

the transceiver is further configured to notify each UE of the configured group public radio network temporary identifier and the corresponding intra-group index thereof by using RRC signaling.

Optionally, the processor is further configured to scramble the group common control signaling with a group common radio network temporary identifier configured for the group UE before the transceiver transmits the transmission resource configuration information configured for the group UE to the group UE with the group common control signaling.

Wherein the transmission resource configuration information comprises at least one of: time domain resource configuration information, frequency domain resource configuration information, time domain offset configuration information, Modulation and Coding Scheme (MCS) configuration information, demodulation reference signal configuration information and power control parameter configuration information.

The transceiver is further configured to notify, by using RRC signaling, each UE in the group of UEs of whether an MCS scheme or a power control parameter configured for the UE is a uniform configuration scheme or an individual configuration scheme before transmitting uplink resource configuration information to the group of UEs.

The demodulation reference signal configuration information comprises explicit configuration and implicit configuration, wherein the explicit configuration refers to directly indicating demodulation reference signal parameters in the set of common control signaling; the implicit configuration refers to the demodulation reference signal parameters configured for the UE determined according to the intra-group index configured for the UE.

Optionally, the transceiver is further configured to, after the processor configures transmission resources for unlicensed transmission of uplink data for a group of user equipments UEs, send, by using radio resource control RRC signaling, transmission cycle configuration information configured for the group of UEs to the group of UEs.

Or, the processor is configured to read a program in the memory, and execute:

receiving, by the transceiver, resource configuration information sent by a network side by using a group common control signaling, where the resource configuration information is resource configuration information of a transmission resource configured for a group of UEs by the network side and used for unlicensed transmission of uplink data;

The transceiver is further configured to receive, before receiving resource configuration information sent by a network side, at least one group public radio network temporary identifier and an intra-group index sent by the network side by using RRC signaling, where the group public radio network temporary identifier is configured by the network side for a group of UEs, and the intra-group index is configured by the network side for each UE in the group of UEs.

The processor is further configured to determine whether the group of common control signaling is scrambled by using the group of common radio network temporary identifiers before performing authorization-free transmission of uplink data according to the resource configuration information received by the transceiver;

The transmission resource configuration information includes at least one of: time domain resource configuration information, frequency domain resource configuration information, time domain offset configuration information, Modulation and Coding Scheme (MCS) configuration information, demodulation reference signal configuration information and power control parameter configuration information.

The modulation coding scheme configuration information comprises either unified MCS configuration information configured for the group of UEs or individual MCS configuration information configured for each UE; the power control parameter configuration information includes unified power control parameter configuration information configured for the group of UEs or individual power control parameter configuration information configured for each UE.

The transceiver is further configured to receive, before receiving the resource configuration information sent by the network side, whether the MCS scheme or the power control parameter configured by the network side and notified by the network side through the RRC signaling is the uniform configuration scheme or the single configuration scheme.

The processor is further configured to determine, according to the unified MCS configuration information, an MCS used for performing the unlicensed transmission of the uplink data before performing the unlicensed transmission of the uplink data according to the resource configuration information received by the transceiver, if the MCS configured by the network side is a unified configuration mode; and if the MCS mode configured by the network side is an individual configuration mode, determining the MCS used for the authorization-free transmission of the uplink data according to the index in the group configured by the network side before the authorization-free transmission of the uplink data is performed according to the resource configuration information received by the transceiver.

The processor is further configured to determine, according to the uniform power control parameter configuration information, a power control parameter for performing the unlicensed transmission of the uplink data before performing the unlicensed transmission of the uplink data according to the resource configuration information received by the transceiver if the power control parameter is in a uniform configuration manner; and if the power control parameter mode is an individual configuration mode, determining the power control parameters for the authorization-free transmission of the uplink data according to the index in the group configured by the network side before the authorization-free transmission of the uplink data is performed according to the resource configuration information received by the transceiver.

The demodulation reference signal configuration information comprises explicit configuration and implicit configuration;

the processor is further configured to, if the demodulation reference signal is explicitly configured, directly read a demodulation reference signal parameter from the set of common control signaling before performing grant-free transmission of uplink data according to the resource configuration information received by the transceiver; and if the demodulation reference signal is configured implicitly, determining a demodulation reference signal parameter according to an index in a group configured by a network side before performing authorization-free transmission of uplink data according to the resource configuration information received by the transceiver.

The transceiver is further configured to receive transmission cycle configuration information sent by the network side by using a radio resource control RRC signaling before the processor activates the unlicensed transmission of uplink data according to the received resource configuration information.

In a sixth aspect, there is provided a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of the first and second aspects.

The method, the device and the medium for the authorization-free transmission of the uplink data can uniformly configure the transmission resources for the authorization-free transmission of the uplink data aiming at a group of UE, and inform the UE of the corresponding resource configuration information by utilizing the group common control signaling.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram illustrating an implementation flow of an uplink data unlicensed transmission method implemented by a network side in an embodiment of the present invention;

FIG. 2 is a diagram illustrating a base station indicating an MCS scheme through a group common control signaling in a UE-specific manner according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating an implementation flow of an uplink data unlicensed transmission method implemented by a network side in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an uplink data unlicensed transmission device implemented by a network side in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an uplink data unlicensed transmission device implemented at a terminal side in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a communication device according to another embodiment of the present invention.

Detailed Description

In order to save downlink control signaling and increase control channel capacity, embodiments of the present invention provide an uplink data unlicensed transmission method, apparatus, and medium.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings of the specification, it being understood that the preferred embodiments described herein are merely for illustrating and explaining the present invention, and are not intended to limit the present invention, and that the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.

In the embodiment of the invention, aiming at a plurality of UEs transmitting URLLC service, a Group Common control channel (Group-Common PDCCH) is utilized to configure transmission resources for the plurality of UEs, and UL Grant-Free transmission of a Group of UEs is activated/deactivated.

As shown in fig. 1, which is a schematic diagram of an implementation flow of a method for implementing uplink data unlicensed transmission on a network side, the method may include the following steps:

and S11, configuring transmission resources for the group of UEs for the unlicensed uplink data transmission.

In this step, the network side base station configures transmission resources for unlicensed transmission of uplink data for a group of UEs.

S12, sending the resource configuration information of the transmission resources configured for the group of UE to the group of UE by using the group common control signaling.

In a specific implementation, the base station may send the transmission cycle configuration information configured for the Group of UEs to the Group of UEs by using RRC (radio resource control) signaling or Group-Common control signaling (GC-DCI); and transmitting the transmission resource configuration information configured for the group of UEs to the group of UEs using a group common control signaling. The Group Common control signaling may be carried by a Group-Common PDCCH (Group-Common PDCCH) or a Common Search Space (Common Search Space).

In specific implementation, before transmitting the transmission resource configuration information configured for the group of UEs to the group of UEs by using the group common control signaling, the method may further include the following steps:

step one, configuring at least one group public radio network temporary identifier for uplink authorization-free scheduling transmission for the group of UE.

In this step, the base station may configure a Group Common radio network temporary identifier (GFGC-RNTI) for uplink unlicensed scheduling transmission to the UE through the RRC signaling, so that the UE may identify a corresponding Group Common control signaling. Different UEs may be configured with the same GFGC-RNTI, and the same UE may be configured with a plurality of GFGC-RNTIs.

Step two, configuring the corresponding group index for each UE contained in the group of UEs respectively.

In this step, the base station configures a Group Index (GI) for the UE through RRC signaling, and a plurality of UEs configured with the same GFGC-RNTI have different GIs.

And step three, informing each UE of the group public radio network temporary identifier configured for the UE and the corresponding group index by using RRC signaling.

Based on this, in this embodiment of the present invention, before transmitting the transmission resource configuration information configured for the group of UEs to the group of UEs by using the group common control signaling, the method may further include the following steps:

scrambling the group common control signaling with a group common radio network temporary identity configured for the group of UEs. The method comprises the steps that a group common control signaling sent to the group of UE is scrambled by using a GFGC-RNTI, the UE can descramble by using the GFGC-RNTI configured for the UE by a base station after obtaining the scrambled common control signaling through blind detection, if the descrambling is possible, the group common control signaling can be determined to be used for activating the uplink authorization-free transmission of the UE, and the UE can obtain resource configuration information after the descrambling.

In specific implementation, the transmission resource configured for the UE by the base station through the group common control signaling at least includes at least one of the following: time domain resource configuration information, frequency domain resource configuration information, time domain Offset (Timing Offset) configuration information, Modulation and Coding Scheme (MCS) configuration information, demodulation reference signal (DMRS) configuration information, and power control parameter configuration information.

Wherein the modulation and coding scheme configuration information includes uniform MCS configuration information (Group-specific) configured for the Group of UEs or individual MCS configuration information (UE-specific) configured for each UE. The Group-specific scheme is that UEs in the same Group configure the same MCS scheme, and in this scheme, only Kbits are included in the GC-DCI to indicate the MCS scheme (the value of K depends on the size of the MCS table of the UL Grant-free). The UE-specific mode refers to different MCS schemes configured for different UEs in the same group, and one possible mode is that the GC-DCI includes K × N bits (N is the number of UEs that can be carried on the same time frequency resource) to indicate the MCS scheme corresponding to each UE in the group, and the UE finds its own K bits in the sequence according to the GI, as shown in fig. 2. For example, the MCS scheme configured for each UE occupies 5bits, and if there are 10 UEs in a group, the MCS scheme corresponding to the UE with an index of 0 in the group is indicated at 0-4 bits, the MCS scheme corresponding to the UE with an index of 1 in the group is indicated at 5-9 bits, and so on, and the MCS corresponding to the UE with an index of 9 in the group is indicated at 45-49 bits. In a specific implementation, the same configuration mode or the separate configuration mode may be configured through a high-level signaling, for example, the base station may notify, by using an RRC signaling, that an MCS mode configured for each UE in the group of UEs is a uniform configuration mode or a separate configuration mode.

Similarly, in this embodiment of the present invention, the power control parameter configuration information includes uniform power control parameter configuration information (Group-specific) configured for the Group of UEs or individual power control parameter configuration information (UE-specific) configured for each UE. The bit length of the indication power control parameter contained in the group common control signaling depends on the corresponding power control parameter configuration mode. Similar to the MCS manner, if the configuration manner is a uniform configuration manner, Xbits (X is a positive integer greater than or equal to 1) is adopted in the group common control signaling to indicate the power control parameters of the group UE for the uplink data unlicensed transmission, if the configuration manner is an individual configuration manner, X × Mbits (M is the number of UEs included in the group) is adopted in the group common control signaling to respectively indicate the power control parameters of the group UE for the uplink data unlicensed transmission, and the UE determines the power control parameters corresponding to the UE according to the GI. In a specific implementation, the same configuration mode or the separate configuration mode may be configured through a high-level signaling, for example, the base station may notify, by using an RRC signaling, that the power control parameter configured for each UE in the group of UEs is the uniform configuration mode or the separate configuration mode.

The demodulation reference signal configuration information comprises Explicit configuration (Implicit) and Implicit configuration (Explicit), wherein the Explicit configuration refers to directly indicating demodulation reference signal parameters in the set of common control signaling; the implicit configuration refers to the demodulation reference signal parameters configured for the UE determined according to the intra-group index configured for the UE. Based on this, if the configuration is implicit, the UE may derive the corresponding DMRS parameters according to the configured GI, and if the configuration is explicit, the base station directly indicates the DMRS parameters corresponding to each UE through signaling of L bits in the GC-DCI (similar to the UE-specific manner described above, the value of L depends on the size of the DMRS parameter set). In specific implementation, the DMRS parameter set and the implicit/explicit method may be configured through higher layer signaling. For example, the base station may notify, through RRC signaling, whether the DMRS parameters configured for the base station by the UE are in an implicit configuration mode or an explicit configuration mode.

In a specific implementation, after activating the group of UE uplink unlicensed transmissions, the base station may also deactivate the group of UE uplink unlicensed transmissions by using the group common control signaling. Specifically, the base station may instruct the group of UEs to deactivate uplink grant-less transmission by using a preset identifier in the group common control signaling, for example, setting all some bit positions in the group common control signaling to 0, and so on.

Correspondingly, an embodiment of the present invention further provides an uplink data authorization-free transmission method implemented by a terminal side, as shown in fig. 3, the method may include the following steps:

s31, receiving the resource configuration information sent by the network side by using the group common control signaling.

The resource configuration information is resource configuration information of transmission resources configured for a group of UEs by the network side and used for unlicensed transmission of uplink data.

And S32, activating the authorization-free transmission of the uplink data according to the received resource configuration information.

In this step, the terminal may receive transmission cycle configuration information sent by the network side using a radio resource control RRC signaling or a group common control signaling; and receiving the transmission resource configuration information sent by the network side by using the group common control signaling. The terminal obtains the group common control signaling through a blind detection mode.

Preferably, before receiving the resource configuration information sent by the network side, the method further includes:

Based on this, after the UE obtains the group common control signaling sent by the base station through a blind detection method, it may be determined whether the received group common control signaling is scrambled by using a group common radio network temporary identifier configured on the network side; if so, determining that the received group common control signaling is used for indicating the authorization-free transmission of the uplink data; and descrambling the received group public control signaling by using the group public radio network temporary identifier configured at the network side to obtain the resource configuration information.

Preferably, the modulation and coding scheme configuration information includes uniform MCS configuration information configured for the group of UEs or individual MCS configuration information configured for each UE; the power control parameter configuration information includes unified power control parameter configuration information configured for the group of UEs or individual power control parameter configuration information configured for each UE.

Based on this, in the uplink data authorization-free transmission method implemented by the terminal side, before receiving the resource configuration information sent by the network side, the method may further include the following steps: and receiving whether the MCS mode or the power control parameter configured by the network side and notified by the network side through RRC signaling is a unified configuration mode or an independent configuration mode.

In specific implementation, if the MCS scheme configured by the network side is a uniform configuration scheme, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes: determining an MCS for performing the authorization-free transmission of the uplink data according to the unified MCS configuration information;

if the MCS configured by the network side is a single configuration mode, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes: and determining the MCS for the authorization-free transmission of the uplink data according to the index in the group configured by the network side.

Similarly, if the power control parameter is configured in a unified manner, before activating the unlicensed transmission of uplink data according to the received resource configuration information, the method further includes: determining a power control parameter for performing authorization-free transmission of uplink data according to the uniform power control parameter configuration information;

if the power control parameter mode is a separate configuration mode, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes: and determining a power control parameter for performing the authorization-free transmission of the uplink data according to the index in the group configured by the network side.

In a specific implementation, the demodulation reference signal configuration information includes explicit configuration and implicit configuration.

Based on this, if the demodulation reference signal is explicitly configured, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes: directly reading demodulation reference signal parameters from the set of common control signaling;

if the demodulation reference signal is implicitly configured, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes: and determining the demodulation reference signal parameters according to the index in the group configured at the network side.

In the uplink data authorization-free transmission method provided by the embodiment of the invention, the base station configures the GFGC-RNTI and the index (GI) in the group for the terminal through the RRC signaling, the terminal judges whether a certain group common control signaling is used for resource allocation and activation of uplink authorization-free scheduling transmission of the terminal through the GFGC-RNTI, and if the certain group common control signaling is used for resource allocation and activation of uplink authorization-free scheduling transmission of the terminal, the terminal obtains resource configuration information corresponding to the terminal from the group common control signaling through the GI.

Based on the same technical concept, the embodiment of the application also provides an uplink data authorization-free transmission device implemented by the network side and the terminal side respectively.

As shown in fig. 4, it is a schematic structural diagram of an uplink data unlicensed transmission device implemented on a network side, and includes:

a configuration unit 41, configured to configure a transmission resource for unlicensed uplink data transmission for a group of user equipments UEs;

a sending unit 42, configured to send resource configuration information of transmission resources configured for the group of UEs to the group of UEs by using group common control signaling.

Optionally, the configuring unit 41 is further configured to configure at least one group common radio network temporary identifier for uplink unlicensed scheduling transmission for a group of user equipments UEs before configuring transmission resources for unlicensed transmission of uplink data for the group of UEs; and configuring corresponding intra-group indexes for each UE contained in the group of UEs respectively;

the sending unit 42 is further configured to notify, by using RRC signaling, each UE of the configured group public radio network temporary identifier and the corresponding intra-group index thereof.

Optionally, the sending unit 42 is further configured to notify, by using RRC signaling, that each UE in the group of UEs configures the MCS scheme or the power control parameter for the UE as a unified configuration scheme or an individual configuration scheme before sending the uplink resource configuration information to the group of UEs.

Optionally, the sending unit 42 is further configured to, after configuring a transmission resource for unlicensed transmission of uplink data for a group of user equipments UEs, send, by using radio resource control RRC signaling, transmission cycle configuration information configured for the group of UEs to the group of UEs.

As shown in fig. 5, it is a schematic structural diagram of an uplink data unlicensed transmission device implemented at a terminal side, and includes:

a receiving unit 51, configured to receive resource configuration information sent by a network side by using a group common control signaling, where the resource configuration information is resource configuration information of a transmission resource configured by the network side for a group of UEs and used for unlicensed transmission of uplink data;

a data transmission unit 52, configured to activate grant-free transmission of uplink data according to the received resource configuration information.

Optionally, the receiving unit 51 is further configured to receive, before receiving the resource configuration information sent by the network side, at least one group public radio network temporary identifier and an intra-group index sent by the network side by using RRC signaling, where the group public radio network temporary identifier is configured by the network side for a group of UEs, and the intra-group index is configured by the network side for each UE in the group of UEs.

Based on the same technical concept, the embodiment of the present application further provides a communication device, which can implement the uplink data authorization-free transmission method implemented by the network side in the foregoing embodiment.

Referring to fig. 6, a schematic structural diagram of a communication device according to an embodiment of the present invention is shown in fig. 4, where the communication device may include: a processor 601, a memory 602, a transceiver 603, and a bus interface.

The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations. The transceiver 603 is used for receiving and transmitting data under the control of the processor 601.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 601, and various circuits of memory, represented by memory 602, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations.

The process disclosed by the embodiment of the invention can be applied to the processor 601 or implemented by the processor 601. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The processor 601 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 601 is configured to read a program in a memory, and execute:

transmitting resource configuration information of transmission resources configured for the group of UEs to the group of UEs by the transceiver 603 using group common control signaling.

Optionally, the processor 601 is further configured to configure, by the transceiver 603, at least one group public radio network temporary identifier for uplink unlicensed scheduling transmission for the group of UEs before transmitting, to the group of UEs, transmission resource configuration information configured for the group of UEs by using group public control signaling; and configuring corresponding intra-group indexes for each UE contained in the group of UEs respectively;

the transceiver 603 is further configured to notify each UE of the configured group public radio network temporary identifier and the corresponding intra-group index thereof by using RRC signaling.

Optionally, the processor 601 is further configured to scramble the group common control signaling by using the group common radio network temporary identifier configured for the group UE before the transceiver 603 sends the transmission resource configuration information configured for the group UE to the group UE by using the group common control signaling.

The transceiver 603 is further configured to notify, by using RRC signaling, each UE in the group of UEs of whether an MCS scheme or a power control parameter configured for the UE is a uniform configuration scheme or an individual configuration scheme before sending uplink resource configuration information to the group of UEs.

Optionally, the transceiver 603 is further configured to, after the processor 601 configures a transmission resource for unlicensed transmission of uplink data for a group of user equipments, send, by using radio resource control RRC signaling, transmission cycle configuration information configured for the group of UEs to the group of UEs.

Based on the same technical concept, the embodiment of the present application further provides a communication device, which can implement the uplink data unlicensed transmission implemented by the terminal side in the foregoing embodiment.

Referring to fig. 7, a schematic structural diagram of a communication device provided in the embodiment of the present application is shown, where the communication device may include: a processor 701, a memory 702, a transceiver 703, and a bus interface.

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations. The transceiver 703 is used for receiving and transmitting data under the control of the processor 701.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 702, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.

The process disclosed in the embodiments of the present invention may be applied to the processor 701, or implemented by the processor 701. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 701 is configured to read a program in a memory, and execute:

receiving, by the transceiver 703, resource configuration information sent by a network side by using a group common control signaling, where the resource configuration information is resource configuration information of a transmission resource configured for a group of UEs by the network side and used for unlicensed transmission of uplink data;

and performing authorization-free transmission of uplink data according to the received resource configuration information.

The transceiver 703 is further configured to receive, before receiving the resource configuration information sent by the network side, at least one group public radio network temporary identifier and an intra-group index sent by the network side by using RRC signaling, where the group public radio network temporary identifier is configured by the network side for a group of UEs, and the intra-group index is configured by the network side for each UE in the group of UEs.

The processor 701 is further configured to determine whether the group of common control signaling is scrambled by using the group of common radio network temporary identifiers before performing authorization-free transmission of uplink data according to the resource configuration information received by the transceiver 703;

The transceiver 703 is further configured to receive, before receiving the resource configuration information sent by the network side, whether the MCS scheme or the power control parameter configured by the network side and notified by the network side through the RRC signaling is the uniform configuration scheme or the separate configuration scheme.

The processor 701 is further configured to determine, according to the uniform MCS configuration information, an MCS used for performing the unlicensed transmission of the uplink data before performing the unlicensed transmission of the uplink data according to the resource configuration information received by the transceiver 703 if the MCS configured by the network side is a uniform configuration; if the MCS scheme configured by the network side is the single configuration scheme, before performing the grant-free transmission of the uplink data according to the resource configuration information received by the transceiver 703, determining an MCS for performing the grant-free transmission of the uplink data according to an intra-group index configured by the network side.

The processor 701 is further configured to determine, according to the uniform power control parameter configuration information, a power control parameter for performing the unlicensed transmission of the uplink data before performing the unlicensed transmission of the uplink data according to the resource configuration information received by the transceiver 703 if the power control parameter is in a uniform configuration manner; if the power control parameter mode is an individual configuration mode, before performing the unlicensed transmission of the uplink data according to the resource configuration information received by the transceiver 703, determining the power control parameter for performing the unlicensed transmission of the uplink data according to the intra-group index configured by the network side.

the processor 701 is further configured to, if the demodulation reference signal is explicitly configured, directly read a demodulation reference signal parameter from the group of common control signaling before performing grant-free transmission of uplink data according to the resource configuration information received by the transceiver 703; if the demodulation reference signal is implicitly configured, before performing the authorization-free transmission of uplink data according to the resource configuration information received by the transceiver 703, determining a demodulation reference signal parameter according to an intra-group index configured by a network side.

The transceiver 703 is further configured to receive transmission cycle configuration information sent by the network side by using a radio resource control RRC signaling before the processor 701 activates the grant-free transmission of uplink data according to the received resource configuration information.

Based on the same technical concept, the embodiment of the application also provides a computer storage medium. The computer-readable storage medium stores computer-executable instructions for causing the computer to execute the uplink data unlicensed transmission method implemented by the network side in the foregoing embodiments.

Based on the same technical concept, the embodiment of the application also provides a computer storage medium. The computer-readable storage medium stores computer-executable instructions for causing the computer to execute the uplink data unlicensed transmission method implemented by the terminal side in the foregoing embodiments.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An uplink data authorization-free transmission method is characterized by comprising the following steps:

configuring at least one group public radio network temporary identifier for uplink authorization-free scheduling transmission for a group of User Equipment (UE);

informing each UE of the temporary identifier of the public radio network of the group configured for the UE and the corresponding index in the group by using RRC signaling;

configuring transmission resources for the group of UEs for unlicensed transmission of uplink data;

scrambling the group common control signaling with a group common radio network temporary identifier configured for the group of UEs;

2. The method of claim 1, wherein the resource configuration information comprises transmission period configuration information and/or transmission resource configuration information.

3. The method of claim 2, wherein the transmission resource configuration information comprises at least one of: time domain resource configuration information, frequency domain resource configuration information, time domain offset configuration information, Modulation and Coding Scheme (MCS) configuration information, demodulation reference signal configuration information and power control parameter configuration information.

4. The method of claim 3, wherein the modulation coding scheme configuration information comprises unified MCS configuration information configured for the group of UEs or separate MCS configuration information configured for each UE; the power control parameter configuration information includes unified power control parameter configuration information configured for the group of UEs or individual power control parameter configuration information configured for each UE.

5. The method of claim 4, wherein prior to transmitting the uplink resource configuration information to the set of User Equipments (UEs), further comprising:

6. The method of claim 3, wherein the demodulation reference signal configuration information comprises an explicit configuration and an implicit configuration, wherein the explicit configuration refers to directly indicating demodulation reference signal parameters in the set of common control signaling; the implicit configuration refers to the demodulation reference signal parameters configured for the UE determined according to the intra-group index configured for the UE.

7. The method of claim 2, wherein after configuring transmission resources for a group of User Equipments (UEs) for unlicensed transmission of uplink data, further comprising:

8. An uplink data authorization-free transmission method is characterized by comprising the following steps:

receiving at least one group public radio network temporary identifier and an intra-group index sent by a network side by using RRC signaling, wherein the group public radio network temporary identifier is configured by the network side for a group of UE, and the intra-group index is configured by the network side for each UE in the group of UE;

receiving resource configuration information sent by the network side by using a group common control signaling, wherein the resource configuration information is resource configuration information of transmission resources which are configured for a group of UE by the network side and are used for transmitting uplink data without authorization;

Descrambling the received group public control signaling by using the group public radio network temporary identifier to obtain resource configuration information in the group public control signaling;

9. The method of claim 8, wherein the resource configuration information comprises transmission period configuration information and/or transmission resource configuration information.

10. The method of claim 9, wherein the transmission resource configuration information comprises at least one of: time domain resource configuration information, frequency domain resource configuration information, time domain offset configuration information, Modulation and Coding Scheme (MCS) configuration information, demodulation reference signal configuration information and power control parameter configuration information.

11. The method of claim 10, wherein the modulation coding scheme configuration information comprises unified MCS configuration information configured for the group of UEs or separate MCS configuration information configured for each UE; the power control parameter configuration information includes unified power control parameter configuration information configured for the group of UEs or individual power control parameter configuration information configured for each UE.

12. The method of claim 11, wherein before receiving the resource configuration information sent by the network side, the method further comprises:

13. The method of claim 12, wherein if the MCS scheme configured by the network side is a uniform configuration scheme, before activating the unlicensed transmission of uplink data according to the received resource configuration information, the method further includes:

if the MCS configured by the network side is a single configuration mode, before activating the grant-free transmission of uplink data according to the received resource configuration information, the method further includes:

14. The method of claim 12, wherein if the power control parameter is configured in a unified manner, before activating the unlicensed transmission of uplink data according to the received resource configuration information, the method further comprises:

15. The method of claim 10, wherein the demodulation reference signal configuration information comprises an explicit configuration and an implicit configuration;

16. The method of claim 9, wherein before activating the grant-less transmission of uplink data according to the received resource configuration information, further comprising:

17. An apparatus for unlicensed uplink data transmission, comprising:

a sending unit, configured to send resource configuration information of transmission resources configured for the group of UEs to the group of UEs by using a group common control signaling;

the configuration unit is further configured to configure at least one group public radio network temporary identifier for uplink unlicensed scheduling transmission for a group of User Equipment (UE) before configuring a transmission resource for unlicensed transmission of uplink data for the group of UE; and configuring corresponding intra-group indexes for each UE contained in the group of UEs respectively;

the sending unit is further configured to notify each UE of the group public radio network temporary identifier configured for the UE and the corresponding intra-group index thereof by using RRC signaling;

18. A row data authorization-free transmission device, comprising:

the data transmission unit is used for activating the authorization-free transmission of the uplink data according to the received resource configuration information;

the receiving unit is further configured to receive, before receiving resource configuration information sent by a network side, at least one group public radio network temporary identifier and an intra-group index sent by the network side by using RRC signaling, where the group public radio network temporary identifier is configured by the network side for a group of UEs, and the intra-group index is configured by the network side for each UE in the group of UEs;

19. A communications apparatus, comprising: a processor, a memory, and a transceiver; the processor, reading a program in a memory, performing the method of any of claims 1-16.

20. A computer storage medium having computer-executable instructions stored thereon for causing a computer to perform the method of any one of claims 1 to 16.