CN111865525A - Resource allocation method and device - Google Patents
Resource allocation method and device Download PDFInfo
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- CN111865525A CN111865525A CN201910354498.4A CN201910354498A CN111865525A CN 111865525 A CN111865525 A CN 111865525A CN 201910354498 A CN201910354498 A CN 201910354498A CN 111865525 A CN111865525 A CN 111865525A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The embodiment of the invention provides a resource allocation method and device. The method is applied to a base station, each partial bandwidth BWP of a cell of the base station comprises at least two sub-bands and at least two configured uplink grants which can be activated simultaneously; the method comprises the following steps: sending an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a Radio Resource Control (RRC) message; receiving configuration authorization auxiliary information sent by the terminal; and allocating the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band with the successful LBT. The embodiment of the invention solves the problem that different requirements of multiple services cannot be met by a configuration authorization mechanism in the prior art.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a resource allocation method and apparatus.
Background
In the field of mobile communication, spectrum resources are core resources for promoting industry development. With the rapid development of radio technology and the wide application of radio services, the contradiction between the scarcity of spectrum resources and the huge application requirements is increasingly prominent. Based on the method, a New air interface technology (New Radio-Unlicensed Bands, NR-U) is introduced into the Unlicensed frequency band by the New Radio-Unlicensed Bands (NR-U) so as to increase the frequency spectrum resources usable by the system, thereby effectively improving the system performance and enhancing the network service. In a Long Term Evolution (LTE) system, an unlicensed spectrum has been used as a secondary cell spectrum resource of an LTE device, that is, the unlicensed spectrum is used as an auxiliary carrier to perform carrier aggregation networking with an LTE Licensed spectrum carrier, which is called Licensed Assisted Access (LAA).
LAA is a Non-Stand Alone Networking (NSA) solution, and must be bundled with licensed carriers by Carrier Aggregation (CA), but cannot be used Alone, and creates a wider bidirectional data pipe by aggregating licensed and unlicensed spectrum, and LAA can only use unlicensed spectrum to increase the data transmission speed of downlink. Enhanced Licensed-Assisted Access (eLAA) is an evolved version of LAA, and the eLAA technology can improve the data transmission speed of uplink and downlink. While a Further enhanced authorized-Assisted Access (FeLAA) is a Further enhanced version of eLAA, which introduces support for Autonomous UpLink transmission (AUL), and an AUL support terminal (User Equipment, UE) autonomously transmits data based on configuration authorization without receiving scheduling authorization from a base station, thereby significantly reducing transmission delay.
A configuration Grant mechanism is also supported in the NR, and for an initial Hybrid automatic repeat reQuest (HARQ) transmission, the 5G base station (gNB) may allocate configuration Grant (CS) resources in the following two ways (types):
Type1, license free scheduling: for uplink Type1CS resources, a Radio Resource Control (RRC) determines a grant without PDCCH activation.
Type 2: for the uplink Type2CS resource, the RRC determines the period of the CS grant, and activates the CS resource through a Physical Downlink Control Channel (PDCCH) addressed by a Cell-Radio Network Temporary Identity (C-RNTI). That is, the PDCCH addressed according to the C-RNTI indicates that this is a CS resource, and the CS resource period can be determined according to the RRC configuration.
When the UE configures uplink CS resources, if PDCCH(s) addressed based on the C-RNTI is not received, uplink transmission according to CS configuration can be carried out. Otherwise, if the UE receives PDCCH(s) addressed based on the C-RNTI, the resources allocated by the PDCCH will cover the resources configured by the CS.
Furthermore, the AUL for FeLAA has the following functions, which are not available in the authorization of NR configuration:
1. the uplink grant is configured by bitmap instead of only periodically.
2. The HARQ process is selected autonomously from the configured pool.
3. UL transmission is skipped when there is no data.
4. Autonomous retransmission after no feedback from the gNB for a certain time.
In NR, the 3GPP 5G standard text Rel-15 specifies some limits on the number of configured grants that can be supported per cell and fractional bandwidth (Part, BWP): when configuring the CA, each serving cell may signal at most one configured uplink grant. When configuring Bandwidth Adaptation (BA), each BWP may signal up to one configured uplink grant. That is, only one configured uplink grant can be activated at a time on each serving cell. The configured uplink grant for one serving cell may be type 1 or type 2. For type 2, the activation and deactivation of the configured uplink grant is independent between serving cells. When configuring a supplemental UpLink carrier (SUL), only one configured UpLink grant may be indicated for one of the 2 ULs of the cell.
In the NR-U band, there will be more motivation to configure grants for different traffic usage in view of the diversity of the traffic. To enable multi-service usage configuration grants, the number of configuration grants per cell should be increased. If the configuration authorization mechanism in NR is continuously used, only one configuration authorization can be provided for each serving cell and each BWP configuration, and multiple configurations can only be activated simultaneously on different serving cells, which cannot meet different requirements of multiple services.
Disclosure of Invention
The embodiment of the invention provides a resource allocation method and a resource allocation device, which are used for solving the problem that an allocation authorization mechanism in the prior art cannot meet different requirements of multiple services.
In one aspect, an embodiment of the present invention provides a resource allocation method, which is applied to a base station, where each partial bandwidth BWP of a cell of the base station includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously;
the method comprises the following steps:
sending an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a Radio Resource Control (RRC) message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configuration scheduling CS resource of the AUL;
receiving configuration authorization auxiliary information sent by the terminal, wherein the configuration authorization auxiliary information comprises: the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of the terminal executing channel listening LBT in each sub-band;
and allocating the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band with the successful LBT.
In one aspect, an embodiment of the present invention provides a resource allocation method, which is applied to a terminal, where each partial bandwidth BWP of a cell where the terminal is located includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously; the method comprises the following steps:
when detecting that a service initially arrives or the service changes, sending configuration authorization auxiliary information to a base station to which the cell belongs, wherein the configuration authorization auxiliary information comprises: the terminal allocates and schedules a second index of CS resources, an estimated time parameter of service data packet arrival and result indication information of performing channel interception (LBT) on each sub-band according to AUL configuration determined by the AUL parameter transmitted by the base station;
and receiving the time-frequency resource pointed by the second index allocated to the terminal by the base station, and transmitting the service data packet by using the time-frequency resource on the sub-band with the successful LBT.
In one aspect, an embodiment of the present invention provides a resource configuration apparatus, which is applied to a base station, where each partial bandwidth BWP of a cell of the base station includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously;
the device comprises:
A parameter sending module, configured to send an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a radio resource control RRC message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configuration scheduling CS resource of the AUL;
an information receiving module, configured to receive configuration authorization auxiliary information sent by the terminal, where the configuration authorization auxiliary information includes: the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of the terminal executing channel listening LBT in each sub-band;
and a resource configuration module, configured to allocate, according to the configuration authorization auxiliary information, the time-frequency resource pointed by the second index to the terminal, so that the terminal transmits the service data packet using the time-frequency resource on the sub-band where the LBT succeeds.
In one aspect, an embodiment of the present invention provides a resource configuration apparatus, which is applied to a terminal, where each partial bandwidth BWP of a cell where the terminal is located includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously;
The device comprises:
an information sending module, configured to send configuration authorization auxiliary information to a base station to which the cell belongs when detecting that a service initially arrives or a service changes, where the configuration authorization auxiliary information includes: the terminal allocates and schedules a second index of CS resources, an estimated time parameter of service data packet arrival and result indication information of performing channel interception (LBT) on each sub-band according to AUL configuration determined by the AUL parameter transmitted by the base station;
and a resource receiving module, configured to receive the time-frequency resource to which the second index is allocated by the base station for the terminal, and transmit the service data packet using the time-frequency resource on the subband in which the LBT is successful.
On the other hand, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, a bus, and a computer program stored on the memory and executable on the processor, where the processor implements the steps in the resource allocation method when executing the program.
In still another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the resource allocation method.
According to the resource allocation method and device provided by the embodiment of the invention, each part bandwidth BWP of the cell of the base station is divided into a plurality of sub-bands, and a plurality of configured uplink grants can be activated at the same time, a plurality of configuration grants are configured for the NR-U cell, and when the bandwidth adaptive BA is configured, each BWP can activate a plurality of configured uplink grants at the same time. The base station transmits AUL parameters to the terminal, receives the configuration authorization auxiliary information transmitted by the terminal, and allocates the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band successful in LBT, the purpose that different NR-U services use corresponding configuration authorization at the same time is achieved, a configuration authorization mechanism in an NR system is enhanced, and the configuration authorization resource required by multiple services in the NR-U system is matched.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a resource allocation method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exemplary BWP partition in accordance with an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an exemplary scenario of UE interacting with a base station according to an embodiment of the present invention;
fig. 4 is a second flowchart illustrating a resource allocation method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention;
fig. 6 is a second schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "an embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrase "in an embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Fig. 1 shows a flowchart of a resource configuration method according to an embodiment of the present invention.
As shown in fig. 1, the resource configuration method provided in the embodiment of the present invention is applied to a base station, where each partial bandwidth BWP of a cell of the base station includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously; as an example, as shown in fig. 2, in each serving cell, it is assumed that a UE is configured with L BWPs, where each BWP may be divided into M sub-bands (subbands) according to LBT unit of operation or multiple thereof, and the subbands 1-subbands, i.e. M sub-bands on a certain BWP, N configuration grants are configured within the BWP, and the configuration grants may be activated simultaneously to match different traffic demands.
Specifically, the method specifically comprises the following steps:
As shown in fig. 3, the base station performs step (1) to send an Autonomous UpLink transmission (AUL) parameter to a terminal in a cell coverage area through a Radio Resource Control (RRC) message, and informs the UE of the AUL parameter, so that the UE selects a corresponding parameter according to the AUL parameter.
The AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configuration scheduling CS resource of the AUL, wherein the first index set comprises a plurality of first indexes, the semi-statically scheduled service interval is used for indicating the time for UE to transmit the service, the first index indicates each pre-configured index of configuration authorization, and the UE can determine the period for transmitting the service according to the semi-statically scheduled service interval and select the CS resource used for transmitting the service.
Continuing to refer to fig. 3, the UE performs step (2), and reports configuration authorization auxiliary information including the current service status to notify the base station of the service data of the UE and the current channel status; specifically, configuring the authorization assistance information includes: and the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of performing channel sensing LBT on each sub-band by the terminal.
The second index is an index of a target resource selected by the terminal from the time-frequency resource pointed by the first index set, and the time indicated in the estimated time parameter is the time of the transmission time indicated in the semi-static scheduling service interval; the result indication information of channel sensing (Listen Before Talk, LBT) indicates the channel sensing result of each sub-band, including sensing success or sensing failure, for the UE to transmit using the corresponding configuration grant for the sub-band.
Further, if the LBT is successful in listening in one sub-band, the UE may use the corresponding configuration grant for transmission in the sub-band, otherwise, if the LBT fails, the UE does not transmit, and finally, the adaptation of different configuration grants and the service is implemented.
With reference to fig. 3, the base station performs step (3) to activate the corresponding configuration grant according to the configuration grant auxiliary information, and sends the activation indication information and the related information of the time-frequency resource to the UE, so that the UE performs step (4) to transmit the service data packet using the time-frequency resource on the sub-band where LBT succeeds, and when there are multiple sub-bands where LBT succeeds, the UE can autonomously transmit multiple services at the same time, thereby improving system performance and reducing transmission delay.
In the above embodiments of the present invention, each partial bandwidth BWP of the cell of the base station is divided into multiple sub-bands, and multiple configured uplink grants can be activated simultaneously, and when configuring the bandwidth adaptive BA, each BWP can activate multiple configured uplink grants simultaneously. The base station transmits AUL parameters to the terminal, receives the configuration authorization auxiliary information transmitted by the terminal, and allocates the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band successful in LBT, the purpose that different NR-U services use corresponding configuration authorization at the same time is achieved, a configuration authorization mechanism in an NR system is enhanced, and the configuration authorization resource required by multiple services in the NR-U system is matched. The embodiment of the invention solves the problem that different requirements of multiple services cannot be met by a configuration authorization mechanism in the prior art.
Optionally, in the foregoing embodiment of the present invention, the step of allocating, according to the configuration authorization auxiliary information, the time-frequency resource pointed by the second index to the terminal includes:
determining the time frequency resource pointed by the second index;
activating the corresponding configuration authorization of the time frequency resource in the estimated time parameter;
and allocating the frequency spectrum resources in the time frequency resources by taking a sub-band as a unit, wherein the UE can use corresponding configuration authorization to perform uplink service transmission in the sub-band with successful LBT.
The base station determines a target resource selected by the terminal according to the second index;
and activating the corresponding configuration authorization of the time-frequency resource pointed by the second index in the estimated time parameter so as to facilitate the subsequent use of the UE, and finally, allocating the frequency spectrum resource in the time-frequency resource by taking a sub-band as a unit, wherein the UE can use the corresponding configuration authorization to perform uplink service transmission on the sub-band with successful LBT.
Optionally, in the foregoing embodiment of the present invention, after the step of allocating the time-frequency resource pointed by the second index to the terminal, the method further includes:
And adding the second index, the activation state indication of the time-frequency resource and the allocation information of the frequency domain resource in Downlink Control Information (DCI), and sending the DCI message to the terminal.
The base station carries the second index, the activation state indication and the allocation Information of the frequency domain resource in a Downlink Control Information (DCI) message and sends the DCI message to the terminal; the activation state indication is an indication that the base station authorizes the corresponding configuration of the time-frequency resource in the estimated time parameter to be activated; the base station allocates the frequency spectrum resources in the time frequency resources by taking the sub-band as a unit, and the UE can use corresponding configuration authorization to perform uplink service transmission in the sub-band with successful LBT.
Optionally, the second index may be represented in the DCI message in the form: AUL CS configuration index; the activation status indication takes the form: activation/release indication; the allocation information of the frequency domain resources is represented by the following form: frequency domain resource assignment.
Optionally, in the foregoing embodiment of the present invention, the estimated time parameter at least includes: estimating the arrival period of a service data packet and the arrival estimated time offset of the service data packet;
The pre-estimated period is the time in the semi-statically scheduled service interval of the AUL.
The estimation period represents an estimation period of arrival of a service data packet of the UE, and can be represented by period; the estimated time offset represents the time offset of the traffic data packet relative to the System Frame Number (SFN) as 0 and the slot (slot) as the estimated time offset, which is denoted by offset.
In the above embodiments of the present invention, each partial bandwidth BWP of the cell of the base station is divided into multiple sub-bands, and multiple configured uplink grants can be activated simultaneously, and multiple configured grants are configured for the NR-U cell, and when configuring the bandwidth adaptive BA, each BWP can activate multiple configured uplink grants simultaneously. The base station transmits AUL parameters to the terminal, receives the configuration authorization auxiliary information transmitted by the terminal, and allocates the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band successful in LBT, the purpose that different NR-U services use corresponding configuration authorization at the same time is achieved, a configuration authorization mechanism in an NR system is enhanced, and the configuration authorization resource required by multiple services in the NR-U system is matched.
Fig. 4 is a flowchart illustrating a resource configuration method according to another embodiment of the present invention.
As shown in fig. 4, the resource configuration method provided in the embodiment of the present invention is applied to a terminal, where each partial bandwidth BWP of a cell where the terminal is located includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously; as an example, as shown in fig. 2, in each serving cell, it is assumed that a UE is configured with L BWPs, where each BWP may be divided into M sub-bands (subbands) according to LBT unit of operation or multiple thereof, and the subbands 1-subbands, i.e. M sub-bands on a certain BWP, N configuration grants are configured within the BWP, and the configuration grants may be activated simultaneously to match different traffic demands.
Specifically, the method specifically comprises the following steps:
Referring to fig. 3, when the UE service initially arrives or the service changes, the UE is triggered to configure the authorization auxiliary information reporting mechanism, and step (2) is executed. After receiving the UE configuration authorization auxiliary information, if the service of the UE is found to change, the base station allocates the configuration authorization resource for the UE again according to the current service to inform the UE, and the UE continues to transmit data by using the new configuration authorization resource.
Specifically, when detecting that a service initially arrives or a service changes, the UE sends configuration authorization auxiliary information to the base station to which the cell belongs, where the configuration authorization auxiliary information includes a second index, an estimated time parameter of arrival of a service data packet, and result indication information of LBT.
The second index is an index of a target resource selected by the terminal from time-frequency resources pointed by the first index set issued by the base station, and the time indicated in the estimated time parameter is the time of the transmission time indicated in the semi-statically scheduled service interval; the result indication information of channel sensing (Listen Before Talk, LBT) indicates the channel sensing result of each sub-band, including sensing success or sensing failure, for the UE to transmit using the corresponding configuration grant for the sub-band.
Further, if the LBT is successful in listening in one sub-band, the UE may use the corresponding configuration grant for transmission in the sub-band, otherwise, if the LBT fails, the UE does not transmit, and finally, the adaptation of different configuration grants and the service is implemented.
With reference to fig. 3, the base station performs step (3) to activate corresponding configuration authorization according to the configuration authorization auxiliary information, activate the corresponding configuration authorization of the time-frequency resource within the estimated time parameter, and send activation indication information and related information of the time-frequency resource to the UE;
and (3) the UE receives the time-frequency resource pointed by the second index allocated to the terminal by the base station, and executes the step (4) to transmit the service data packet by using the time-frequency resource on the sub-band with successful LBT.
In the above embodiments of the present invention, each partial bandwidth BWP of the cell of the base station is divided into multiple sub-bands, and multiple configured uplink grants can be activated simultaneously, and multiple configured grants are configured for the NR-U cell, and when configuring the bandwidth adaptive BA, each BWP can activate multiple configured uplink grants simultaneously. When detecting that a service initially arrives or the service changes, the terminal sends configuration authorization auxiliary information to the base station to which the cell belongs, receives the time-frequency resource pointed by the second index allocated to the terminal by the base station, transmits the service data packet by using the time-frequency resource on the sub-band where the LBT succeeds, achieves the purpose that different NR-U services use corresponding configuration authorization at the same time, enhances a configuration authorization mechanism in the NR system, and matches the configuration authorization resource required by multiple services in the NR-U system. The embodiment of the invention solves the problem that different requirements of multiple services cannot be met by a configuration authorization mechanism in the prior art.
Optionally, in the above embodiment of the present invention, before the step of sending the configuration authorization auxiliary information to the base station to which the cell belongs, the method further includes:
receiving AUL parameters sent by the base station through a radio resource control RRC message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configured scheduling CS resource of the AUL.
As shown in fig. 2, the base station sends an AUL parameter to the terminal within the cell coverage area through an RRC message; and the UE receives the AUL parameters and selects corresponding parameters according to the AUL parameters.
The AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of configuration scheduling CS resources of the AUL, wherein the semi-statically scheduled service interval is used for indicating the time for UE to transmit service, the first index set indicates each pre-configured index of authorized CS resources, and the UE can determine the period for transmitting service according to the semi-statically scheduled service interval and select the CS resources used for transmitting service.
Optionally, in the foregoing embodiment of the present invention, after the step of receiving the time-frequency resource to which the second index is allocated by the base station to the terminal, the method further includes:
And receiving Downlink Control Information (DCI) sent by the base station, wherein the DCI carries the second index, the activation state indication of the time-frequency resource and the allocation information of the frequency domain resource in the time-frequency resource.
The UE receives a DCI message sent by the base station, wherein the DCI carries a second index, an activation state indication and allocation information of frequency domain resources; the activation state indication is an indication that the base station authorizes the corresponding configuration of the time-frequency resource in the estimated time parameter to be activated; the allocation information of the frequency domain resources is specific allocation information that the base station allocates the frequency spectrum resources in the time frequency resources in a sub-band unit, and the UE can use corresponding configuration authorization to perform uplink service transmission in the sub-band where the LBT succeeds.
Optionally, the second index may be represented in the DCI message in the form: AUL CS configuration index; the activation status indication takes the form: activation/release indication; the allocation information of the frequency domain resources is represented by the following form: frequency domain resource assignment.
Optionally, in the foregoing embodiment of the present invention, the estimated time parameter at least includes: estimating the arrival period of a service data packet and the arrival estimated time offset of the service data packet;
The pre-estimated period is the time in the semi-statically scheduled service interval of the AUL.
The estimation period represents an estimation period of arrival of a service data packet of the UE, and can be represented by period; the estimated time offset represents the time offset of the traffic data packet relative to the System Frame Number (SFN) as 0 and the slot (slot) as the estimated time offset, which is denoted by offset.
In the above embodiments of the present invention, each partial bandwidth BWP of the cell of the base station includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously, and multiple configured uplink grants are configured for the NR-U cell, and when configuring the bandwidth adaptive BA, each BWP can activate multiple configured uplink grants simultaneously. When detecting that a service initially arrives or the service changes, the terminal sends configuration authorization auxiliary information to the base station to which the cell belongs, receives the time-frequency resource pointed by the second index allocated to the terminal by the base station, transmits the service data packet by using the time-frequency resource on the sub-band where the LBT succeeds, achieves the purpose that different NR-U services use corresponding configuration authorization at the same time, enhances a configuration authorization mechanism in the NR system, and matches the configuration authorization resource required by multiple services in the NR-U system.
In the above, the resource allocation method provided by the embodiment of the present invention is described, and a resource allocation apparatus provided by the embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 5, an embodiment of the present invention provides a resource configuration apparatus, which is applied to a base station, where each partial bandwidth BWP of a cell of the base station includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously;
as an example, as shown in fig. 2, in each serving cell, it is assumed that a UE is configured with L BWPs, where each BWP may be divided into M sub-bands (subbands) according to LBT unit of operation or multiple thereof, and the subbands 1-subbands, i.e. M sub-bands on a certain BWP, N configuration grants are configured within the BWP, and the configuration grants may be activated simultaneously to match different traffic demands.
The device comprises:
a parameter sending module 501, configured to send an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a radio resource control RRC message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configured scheduling CS resource of the AUL.
The base station sends Autonomous UpLink (AUL) parameters to a terminal in a cell coverage area through Radio Resource Control (RRC) messages, and informs the AUL parameters to the UE, so that the UE selects corresponding parameters according to the AUL parameters.
The AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of configuration scheduling CS resources of the AUL, wherein the semi-statically scheduled service interval is used for indicating the time for the UE to transmit the service, the first index set indicates a pre-configured index of configuration authorization, and the UE can determine the period for transmitting the service according to the semi-statically scheduled service interval and select the CS resources used for transmitting the service.
An information receiving module 502, configured to receive configuration authorization auxiliary information sent by the terminal, where the configuration authorization auxiliary information includes: and the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of performing channel sensing LBT on each sub-band by the terminal.
The UE reports configuration authorization auxiliary information containing the current service state to inform a base station of service data of the UE and the current channel state; specifically, configuring the authorization assistance information includes: and the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of performing channel sensing LBT on each sub-band by the terminal.
The second index is an index of a target resource selected by the terminal from the time-frequency resource pointed by the first index set, and the time indicated in the estimated time parameter is the time of the transmission time indicated in the semi-static scheduling service interval; the result indication information of channel sensing (Listen Before Talk, LBT) indicates the channel sensing result of each sub-band, including sensing success or sensing failure, for the UE to transmit using the corresponding configuration grant for the sub-band.
Further, if the LBT is successful in listening in one sub-band, the UE may use the corresponding configuration grant for transmission in the sub-band, otherwise, if the LBT fails, the UE does not transmit, and finally, the adaptation of different configuration grants and the service is implemented.
A resource allocation module 503, configured to allocate, according to the allocation grant auxiliary information, the time-frequency resource pointed by the second index to the terminal, so that the terminal transmits the service data packet using the time-frequency resource on the sub-band where the LBT is successful.
And the base station activates corresponding configuration authorization according to the configuration authorization auxiliary information, activates the corresponding configuration authorization of the time-frequency resource in the estimated time parameter, and sends activation indication information and the related information of the time-frequency resource to the UE, so that the UE transmits the service data packet by using the time-frequency resource on the sub-band with successful LBT.
Optionally, in the foregoing embodiment of the present invention, the resource configuration module 503 includes:
the configuration submodule is used for determining the time-frequency resource pointed by the second index;
activating the corresponding configuration authorization of the time frequency resource in the estimated time parameter;
and allocating the frequency spectrum resources in the time frequency resources by taking a sub-band as a unit, wherein the UE can use corresponding configuration authorization to perform uplink service transmission in the sub-band with successful LBT.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
and the DCI sending module is used for adding the second index, the activation state indication of the time-frequency resource and the allocation information of the frequency domain resource in downlink control information DCI and sending the DCI message to the terminal.
Optionally, in the foregoing embodiment of the present invention, the estimated time parameter at least includes: estimating the arrival period of a service data packet and the arrival estimated time offset of the service data packet;
the pre-estimated period is the time in the semi-statically scheduled service interval of the AUL.
In the above embodiments of the present invention, each partial bandwidth BWP of the cell of the base station is divided into multiple sub-bands, and multiple configured uplink grants can be activated simultaneously, and multiple configured grants are configured for the NR-U cell, and when configuring the bandwidth adaptive BA, each BWP can activate multiple configured uplink grants simultaneously. The parameter sending module 501 sends an AUL parameter to a terminal, the information receiving module 502 receives configuration authorization auxiliary information sent by the terminal, and the resource configuration module 503 allocates a time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on a sub-band where LBT succeeds, thereby achieving the purpose that different NR-U services use corresponding configuration authorization at the same time, enhancing a configuration authorization mechanism in an NR system, and matching configuration authorization resources required by multiple services in the NR-U system.
As shown in fig. 6, an embodiment of the present invention provides a resource configuration apparatus, which is applied to a terminal, where each partial bandwidth BWP of a cell where the terminal is located includes at least two sub-bands and at least two configured uplink grants that can be activated simultaneously; as an example, as shown in fig. 2, in each serving cell, it is assumed that a UE is configured with L BWPs, where each BWP may be divided into M sub-bands (subbands) according to LBT unit of operation or multiple thereof, and the subbands 1-subbands, i.e. M sub-bands on a certain BWP, N configuration grants are configured within the BWP, and the configuration grants may be activated simultaneously to match different traffic demands.
The device comprises:
an information sending module 601, configured to send configuration authorization auxiliary information to a base station to which the cell belongs when detecting that a service initially arrives or a service changes, where the configuration authorization auxiliary information includes: and the terminal schedules a second index of CS resources according to the configuration of the AUL determined by the autonomous uplink transmission AUL parameter sent by the base station, an estimated time parameter of service data packet arrival, and result indication information of performing channel sounding LBT on each sub-band by the terminal.
When the UE service initially arrives or the service changes, the UE configuration authorization auxiliary information reporting mechanism is triggered. After receiving the UE configuration authorization auxiliary information, if the service of the UE is found to change, the base station allocates the configuration authorization resource for the UE again according to the current service to inform the UE, and the UE continues to transmit data by using the new configuration authorization resource.
Specifically, when detecting that a service initially arrives or a service changes, the UE sends configuration authorization auxiliary information to the base station to which the cell belongs, where the configuration authorization auxiliary information includes a second index, an estimated time parameter of arrival of a service data packet, and result indication information of LBT.
The second index is an index of a target resource selected by the terminal from time-frequency resources pointed by the first index set issued by the base station, and the time indicated in the estimated time parameter is the time of the transmission time indicated in the semi-statically scheduled service interval; the result indication information of channel sensing (Listen Before Talk, LBT) indicates the channel sensing result of each sub-band, including sensing success or sensing failure, for the UE to transmit using the corresponding configuration grant for the sub-band.
Further, if the LBT is successful in listening in one sub-band, the UE may use the corresponding configuration grant for transmission in the sub-band, otherwise, if the LBT fails, the UE does not transmit, and finally, the adaptation of different configuration grants and the service is implemented.
A resource receiving module 602, configured to receive the time-frequency resource to which the second index is allocated by the base station for the terminal, and transmit the service data packet using the time-frequency resource on the subband where the LBT is successful.
The base station activates corresponding configuration authorization according to the configuration authorization auxiliary information, activates the corresponding configuration authorization of the time-frequency resource in the estimated time parameter, and sends activation indication information and the related information of the time-frequency resource to the UE;
and the UE receives the time-frequency resource pointed by the second index allocated to the terminal by the base station, transmits the service data packet by using the time-frequency resource on the sub-band with successful LBT, and can independently transmit a plurality of services simultaneously when a plurality of sub-bands with successful LBT exist, so that the system performance is improved, and the sending time delay is reduced.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
a parameter receiving module, configured to receive an AUL parameter sent by the base station through a radio resource control RRC message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configured scheduling CS resource of the AUL.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
a DCI receiving module, configured to receive DCI transmitted by the base station, where the DCI carries the second index, the activation status indication of the time-frequency resource, and allocation information of the frequency-domain resource in the time-frequency resource.
Optionally, in the foregoing embodiment of the present invention, the estimated time parameter at least includes: estimating the arrival period of a service data packet and the arrival estimated time offset of the service data packet;
the pre-estimated period is the time in the semi-statically scheduled service interval of the AUL.
In the above embodiments of the present invention, each partial bandwidth BWP of the cell of the base station is divided into multiple sub-bands, and multiple configured uplink grants can be activated simultaneously to configure multiple configuration grants for the NR-U cell, and when configuring the bandwidth adaptive BA, each BWP can activate multiple configured uplink grants simultaneously. When detecting that a service initially arrives or a service changes, the information sending module 601 sends configuration authorization auxiliary information to the base station to which the cell belongs, and the resource receiving module 602 receives a time-frequency resource to which the base station allocates the second index to the terminal, and transmits the service data packet by using the time-frequency resource on a subband where LBT succeeds, so that the purpose that different NR-U services use corresponding configuration authorization simultaneously is achieved, a configuration authorization mechanism in an NR system is enhanced, and configuration authorization resources required by multiple services in the NR-U system are matched.
On the other hand, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, a bus, and a computer program stored on the memory and executable on the processor, where the processor implements the steps in the resource allocation method when executing the program.
For example, as follows, when the electronic device is a server, fig. 7 illustrates a physical structure diagram of the server.
As shown in fig. 7, the server may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. Processor 710 may call logic instructions in memory 730 to perform the following method:
sending an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a Radio Resource Control (RRC) message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configuration scheduling CS resource of the AUL;
receiving configuration authorization auxiliary information sent by the terminal, wherein the configuration authorization auxiliary information comprises: the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of the terminal executing channel listening LBT in each sub-band;
And allocating the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band with the successful LBT.
Or
When detecting that a service initially arrives or the service changes, sending configuration authorization auxiliary information to a base station to which the cell belongs, wherein the configuration authorization auxiliary information comprises: the terminal allocates and schedules a second index of CS resources, an estimated time parameter of service data packet arrival and result indication information of performing channel interception (LBT) on each sub-band according to AUL configuration determined by the AUL parameter transmitted by the base station;
and receiving the time-frequency resource pointed by the second index allocated to the terminal by the base station, and transmitting the service data packet by using the time-frequency resource on the sub-band with the successful LBT.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In still another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the resource allocation method.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed 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 modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A resource allocation method is applied to a base station, and is characterized in that each partial bandwidth BWP of a cell of the base station comprises at least two sub-bands and at least two configured uplink grants which can be activated simultaneously;
the method comprises the following steps:
sending an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a Radio Resource Control (RRC) message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configuration scheduling CS resource of the AUL;
receiving configuration authorization auxiliary information sent by the terminal, wherein the configuration authorization auxiliary information comprises: the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of the terminal executing channel listening LBT in each sub-band;
And allocating the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information, so that the terminal transmits the service data packet by using the time-frequency resource on the sub-band with the successful LBT.
2. The method according to claim 1, wherein the step of allocating the time-frequency resource pointed by the second index to the terminal according to the configuration authorization auxiliary information comprises:
determining the time frequency resource pointed by the second index;
and authorizing and activating the corresponding configuration of the time frequency resource in the estimated time parameter.
3. The method according to claim 2, wherein after the step of allocating the time-frequency resource pointed by the second index to the terminal, the method further comprises:
and adding the second index, the activation state indication of the time-frequency resource and the allocation information of the frequency domain resource in Downlink Control Information (DCI), and sending the DCI message to the terminal.
4. The method of claim 1, wherein the pre-estimated time parameter comprises at least: estimating the arrival period of a service data packet and the arrival estimated time offset of the service data packet;
The pre-estimated period is the time in the semi-statically scheduled service interval of the AUL.
5. A resource allocation method is applied to a terminal, and is characterized in that each partial bandwidth BWP of a cell in which the terminal is located comprises at least two sub-bands and at least two configured uplink grants which can be activated simultaneously;
the method comprises the following steps:
when detecting that a service initially arrives or the service changes, sending configuration authorization auxiliary information to a base station to which the cell belongs, wherein the configuration authorization auxiliary information comprises: the terminal allocates and schedules a second index of CS resources, an estimated time parameter of service data packet arrival and result indication information of performing channel interception (LBT) on each sub-band according to AUL configuration determined by the AUL parameter transmitted by the base station;
and receiving the time-frequency resource pointed by the second index allocated to the terminal by the base station, and transmitting the service data packet by using the time-frequency resource on the sub-band with the successful LBT.
6. The method for configuring resources according to claim 5, wherein before the step of sending the configuration authorization assistance information to the base station to which the cell belongs, the method further comprises:
Receiving AUL parameters sent by the base station through a radio resource control RRC message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configured scheduling CS resource of the AUL.
7. The method according to claim 5, wherein after the step of receiving the time-frequency resource pointed by the second index allocated by the base station to the terminal, the method further comprises:
and receiving Downlink Control Information (DCI) sent by the base station, wherein the DCI carries the second index, the activation state indication of the time-frequency resource and the allocation information of the frequency domain resource in the time-frequency resource.
8. The method of claim 5, wherein the pre-estimated time parameter comprises at least: estimating the arrival period of a service data packet and the arrival estimated time offset of the service data packet;
the pre-estimated period is the time in the semi-statically scheduled service interval of the AUL.
9. A resource configuration device applied to a base station is characterized in that each partial bandwidth BWP of a cell of the base station comprises at least two sub-bands and at least two configured uplink grants which can be activated simultaneously;
The device comprises:
a parameter sending module, configured to send an autonomous uplink transmission AUL parameter to a terminal in the cell coverage area through a radio resource control RRC message; the AUL parameter at least comprises a semi-statically scheduled service interval of the AUL and a first index set of a configuration scheduling CS resource of the AUL;
an information receiving module, configured to receive configuration authorization auxiliary information sent by the terminal, where the configuration authorization auxiliary information includes: the terminal determines a second index of the CS resource according to the AUL parameter, an estimated time parameter of service data packet arrival and result indication information of the terminal executing channel listening LBT in each sub-band;
and a resource configuration module, configured to allocate, according to the configuration authorization auxiliary information, the time-frequency resource pointed by the second index to the terminal, so that the terminal transmits the service data packet using the time-frequency resource on the sub-band where the LBT succeeds.
10. A resource configuration device is applied to a terminal, and is characterized in that each partial bandwidth BWP of a cell in which the terminal is located comprises at least two sub-bands and at least two configured uplink grants which can be activated simultaneously;
The device comprises:
an information sending module, configured to send configuration authorization auxiliary information to a base station to which the cell belongs when detecting that a service initially arrives or a service changes, where the configuration authorization auxiliary information includes: the terminal allocates and schedules a second index of CS resources, an estimated time parameter of service data packet arrival and result indication information of performing channel interception (LBT) on each sub-band according to AUL configuration determined by the AUL parameter transmitted by the base station;
and a resource receiving module, configured to receive the time-frequency resource to which the second index is allocated by the base station for the terminal, and transmit the service data packet using the time-frequency resource on the subband in which the LBT is successful.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the resource allocation method according to any one of claims 1 to 8 when executing the program.
12. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that: the program, when executed by a processor, implements the steps in the resource configuration method of any of claims 1 to 8.
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| WO2024125433A1 (en) * | 2022-12-12 | 2024-06-20 | 大唐移动通信设备有限公司 | Information transmission method and apparatus, terminal device, and network device |
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